An inlet guide vane apparatus includes a motor operably connected to at least one of a plurality of guide vanes, a sensor configured to detect a rotational position of at least one of the plurality of guide vanes, and a controller connected to the sensor and the motor. The controller is configured to identify a first rotational stop position of the guide vane based on feedback from the sensor, identify a second rotational stop position of the guide vane based on feedback from the sensor, and calibrate a neutral position of the guide vane based on the determined first and second rotational stop positions of the guide vane.
A compressor including a motor including a rotor and a stator including a plurality of stator teeth. Each stator tooth includes a winding tooth portion extending along and defining at least one of a winding slot and a cooling fin portion extending radially inward from the winding tooth portion. The cooling fin portion of each stator tooth is spaced circumferentially apart from the other cooling fin portions to define a plurality of cooling channels therebetween.
H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
A centrifugal compressor includes a compressor housing, a motor and a rotatable shaft. A bearing housing defines a center bore that receives the shaft, and a volute assembly is positioned in the socket adjacent the bearing housing. The volute assembly has a back axial surface facing the bearing housing, stops protruding from the back axial surface. The stops abut the datum to limit tolerance stack between the bearing housing and the volute assembly. Each of the bearing housing and the volute assembly are secured to the datum.
A compressor system includes a compressor housing, a shaft rotationally supported within the compressor housing, a first impeller operably connected to the shaft at a first end, a second impeller operably connected to the shaft at a second end, a motor operably connected to the shaft, and a cooling circuit. The cooling circuit includes a coolant inlet passage for introducing an inlet coolant flow into the cooling circuit, and a cooling channel connected in fluid communication with the coolant inlet passage. The cooling channel extends helically around the motor and includes a first portion and a second portion. Each of the first portion and the second portion extends from the coolant inlet passage to respective first and second outlets such that the inlet coolant flow is split into a first coolant flow along the first portion and a second coolant flow along the second portion.
A method includes storing a time TON, a time TOFF, and an override flag; and executing a duty cycle logic loop. The duty cycle logic loop includes receiving temperature readings from the one or more temperature sensors for the one or more locations; if a determination is that any of the temperature readings are above an upper temperature threshold, incrementing the time TON, setting the override flag to true, and opening the cooling valve; if a determination is that time TOFF is complete, opening the cooling valve, starting time TON, and if a determination is that all temperature readings are lower than the lower temperature threshold or any temperature is lower than the superheat margin, decrementing time TON.
A compressor system including a cooling circuit including a first coolant inlet passage defined by a compressor housing for introducing a first coolant flow into the cooling circuit and a second coolant inlet passage defined by the compressor housing for introducing a second coolant flow into the cooling circuit. The cooling circuit includes a cooling channel defined by the compressor housing and connected in fluid communication with the first and second coolant inlet passages. The cooling channel extends helically around a motor and includes a first portion and a second portion. The first portion extends from the first coolant inlet passage to a first outlet and the second portion extends from the second coolant inlet passage to a second outlet such that the first coolant flow travels along the first portion and the second coolant flow travels along the second portion.
A compressor system includes a compressor housing, a shaft, one or more impellers operably connected to the shaft, a motor, and a cooling circuit. The motor is operably connected to the shaft to drive rotation thereof and compress a working fluid. The cooling circuit includes a first and second coolant inlet passage defined by the compressor housing and a cooling channel. The cooling channel is defined by the compressor housing and is connected in fluid communication with the first and second coolant inlet passages. The cooling channel extends around the motor and includes a first portion and a second portion. The first portion extends from the first coolant inlet passage to a first outlet and the second portion extends from the second coolant inlet passage to a second outlet.
A climate-control system may include first and second fluid circuits. The first fluid circuit includes a compressor, a TES device, a first outdoor heat-exchanger, a second outdoor heat-exchanger, and a third outdoor heat-exchanger. The compressor circulates a first fluid through the TES device, the outdoor heat-exchangers. The second fluid circuit includes a first indoor heat-exchanger, a second indoor heat-exchanger, and a third indoor heat-exchanger. The second fluid circuit defines a first closed loop including a first pump and the first indoor heat-exchanger. The second fluid circuit defines a second closed loop including a second pump and the third indoor heat-exchanger. Heat transfers between the first outdoor and indoor heat-exchangers and between the third outdoor and indoor heat-exchangers. The second indoor heat-exchanger is a part of the first closed loop in heating modes and is a part of the second closed loop in cooling modes.
F25B 30/02 - Pompes à chaleur du type à compression
F28D 20/00 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou
A refrigerant leak detection system includes a leak sensor module for sensing leaked refrigerant and a connector. The connector is configured as a junction for connecting an AC voltage source with the leak sensor module and an evaporator fan of a refrigerated case. The connector is configured to be operable for selectively supplying AC voltage from the AC voltage source to the evaporator fan, or to the leak sensor module, or to both the evaporator fan and the leak sensor module. When the leak sensor module is activated to conduct leak testing, the AC voltage from the AC voltage source to the evaporator fan is interrupted by the connector to thereby turn OFF the evaporator fan and facilitate detection of any leaked refrigerant.
F25D 29/00 - Disposition ou montage de l'appareillage de commande ou de sécurité
F25D 17/06 - Dispositions pour la circulation des fluides de refroidissementDispositions pour la circulation de gaz, p. ex. d'air, dans les enceintes refroidies pour la circulation de gaz, p. ex. convection naturelle par circulation d'air forcée
10.
SYSTEMS, CONTROLLERS, AND METHODS FOR CONTROLLING A CO2 REFRIGERATION SYSTEM
A method of controlling a CO2 refrigeration system includes obtaining a target exit pressure of refrigerant from a gas cooler/condenser, a measurement of a pressure of the flash tank, and an open percentage of a bypass valve (BGV). Whether or not to decrease the pressure of the flash tank is determined, based at least in part on the pressure of the flash tank and the open percentage of the BGV. When the controller determines to decrease the pressure of the flash tank, the target exit pressure is increased by an amount.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
11.
APPARATUS AND METHOD FOR MODULATING HEATING OR COOLING CAPACITY OF A CLIMATE CONTROL SYSTEM WITH MULTIPLE REFRIGERANTS
A climate control system includes: a working fluid including a blend of first and second refrigerants; an accumulator; a compressor that receives the working fluid from the accumulator; a first heat exchanger disposed downstream of the compressor; a liquid-to-suction heat exchanger disposed downstream of the first heat exchanger and upstream of a receiver; a first expansion valve disposed between the liquid-to-suction heat exchanger and the receiver; a second expansion valve disposed between the receiver and a second heat exchanger, the second heat exchanger receiving the working fluid from the second expansion valve, at least partially vaporizing the working fluid, outputting the at least partially vaporized working fluid to the liquid-to-suction heat exchanger; and a control module configured to selectively adjust opening of the first and second expansion valves based on (a) decreasing capacity and increasing working fluid concentration and (b) increasing capacity and decreasing working fluid concentration.
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
A vapor-liquid separator includes a first flow path extending between a fluid inlet and a fluid outlet and including a helical portion, a second flow path extending between and fluidly transferring vapor from the first flow path to the vapor outlet and defining a helical portion, and one or more bridges fluidly coupling the first flow path to the second flow. The helical portion of the first flow path causes a reduction in static pressure and an increase in velocity of a fluid flowing through the first flow path and generates a vapor that flows into the second flow path via the one or more bridges. The vapor received within the second flow path is discharged from the vapor outlet and the fluid flowing through the first flow path is discharged from the fluid outlet.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
13.
Systems, Controllers, And Methods For Controlling A CO2 Refrigeration System
A method of controlling a CO2 refrigeration system includes receiving, by a controller, a measurement of an exit pressure of a refrigerant from a gas cooler/condenser, operating, by the controller, a fan positioned to supply a flow of air into the gas cooler/condenser with a fan speed percentage at or above a first speed threshold when the controller determines based on the measurement of the exit pressure that the exit pressure is greater or equal to a pressure threshold of the refrigerant from the gas cooler/condenser, and variably controlling, by the controller, an open percentage of the HPV to cause the exit pressure of the refrigerant in the flow of refrigerant from the gas cooler/condenser to move toward a target exit pressure when the fan speed percentage is greater than or equal to the first speed threshold.
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
An inlet guide vane apparatus for imparting a pre-swirl motion to a fluid flow entering an inlet of a compressor housing. The apparatus including an inner surface defining a fluid flow passageway extending between an inlet and an outlet along a fluid flow direction. An apparatus housing defines guide vane openings extending into the fluid flow passageway.
An inlet guide vane apparatus for imparting a pre-swirl motion to a fluid flow entering an inlet of a compressor housing. The apparatus including an inner surface defining a fluid flow passageway extending between an inlet and an outlet along a fluid flow direction. An apparatus housing defines guide vane openings extending into the fluid flow passageway.
The inner surface includes an inlet portion extending axially from the inlet to an axial end upstream from the guide vane openings. The inlet portion of the inner surface includes an inwardly tapered portion that tapers radially inward as the inner surface extends along the fluid flow direction. The inner surface further includes an outwardly tapered portion positioned downstream from the inwardly tapered portion that tapers radially outwards as the inner surface extends along the fluid flow direction.
A bearing system for a compressor including an unloader at least partially received within a recess of a driveshaft. The unloader includes an outer surface that is engaged with a bearing.
A bearing system for a compressor including an unloader at least partially received within a recess of a driveshaft. The unloader includes an outer surface that is engaged with a bearing.
An inner surface of the unloader is curved such that the unloader is pivotable relative to the driveshaft unload forces on bearing caused by deflection of the driveshaft.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 35/073 - Leur fixation sur l'arbre ou dans la carcasse d'enveloppe avec interposition d'un organe entre l'arbre et la bague intérieure de roulement
A compressor may include first and second scrolls and a capacity-modulation system. The first and second scrolls include first and second end plates and first and second spiral wraps. The second end plate may define a suction inlet, a discharge passage, a modulation port, and a vent passage. The capacity-modulation system may include a control valve and a piston. The control valve is movable between first and second positions. The piston may be disposed within a recess in the second end plate and is movable between an open position in which communication between the modulation port and the vent passage is allowed and a closed position in which communication between the modulation port and the vent passage is prevented. Moving the control valve to the first position moves the piston to the closed position. Moving the control valve to the second position moves the piston to the open position.
F04C 28/16 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des soupapes de levage
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
A compressor may include first and second scrolls and a capacity-modulation system. The first and second scrolls include first and second end plates and first and second spiral wraps. The second end plate may define a suction inlet, a discharge passage, a modulation port, and a vent passage. The capacity-modulation system may include a control valve and a piston. The control valve is movable between first and second positions. The piston may be disposed within a recess in the second end plate and is movable between an open position in which communication between the modulation port and the vent passage is allowed and a closed position in which communication between the modulation port and the vent passage is prevented. Moving the control valve to the first position moves the piston to the closed position. Moving the control valve to the second position moves the piston to the open position.
F04C 28/16 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des soupapes de levage
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
A compressor may include first and second scrolls and a capacity-modulation system. The first and second scrolls include first and second end plates and first and second spiral wraps. The second end plate may define a suction inlet, a discharge passage, a modulation port, and a vent passage. The capacity-modulation system may include a control valve and a piston. The control valve is movable between first and second positions. The piston may be disposed within a recess in the second end plate and is movable between an open position in which communication between the modulation port and the vent passage is allowed and a closed position in which communication between the modulation port and the vent passage is prevented. Moving the control valve to the first position moves the piston to the closed position. Moving the control valve to the second position moves the piston to the open position.
F04C 28/16 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des soupapes de levage
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
19.
RECIPROCATING COMPRESSOR AND FLUID INJECTION SYSTEM
A compressor includes a housing, a first compression mechanism and a second compression mechanism disposed in the housing, and a housing cover fixed to the housing. Both the first compression mechanism and the second compression mechanism are configured to compress a working fluid from a suction pressure to a discharge pressure. The first compression mechanism includes a first cylinder housing having a first fluid storage plenum. The second compression mechanism includes a second cylinder housing having a second fluid storage plenum. The housing cover defines an intermediate-fluid port in fluid communication with the first fluid storage plenum via a first intermediate-fluid passage and the second fluid storage plenum via a second intermediate-fluid passage. Working fluid at an intermediate pressure enters the intermediate-fluid port. The intermediate pressure is greater than the suction pressure and less than the discharge pressure.
F04B 27/04 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
20.
Reciprocating Compressor And Fluid Injection System
A compressor includes a cylinder, a sleeve assembly disposed in the cylinder, and a piston disposed within the sleeve assembly. The sleeve assembly includes a sleeve and a collar. The sleeve and the collar cooperate to define a plurality of ports. The piston is movable between a first position and a second position and is configured to compress a working fluid from a suction pressure at the first position to a discharge pressure at the second position. The piston and the sleeve assembly cooperate to selectively permit working fluid at an intermediate pressure to enter the cylinder. The intermediate pressure is greater than the suction pressure and less than the discharge pressure.
F04B 27/04 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
21.
Reciprocating Compressor And Fluid Injection System
A compressor includes a housing, a first compression mechanism and a second compression mechanism disposed in the housing, and a valve. Both the first compression mechanism and the second compression mechanism are configured to compress a working fluid from a suction pressure to a discharge pressure. The first compression mechanism includes a first cylinder housing having a first fluid storage plenum. The second compression mechanism includes a second cylinder housing having a second fluid storage plenum. An intermediate-fluid port is in selective fluid communication with the valve. The intermediate-fluid port is in fluid communication with the first fluid storage plenum via a first intermediate-fluid passage and the second fluid storage plenum via a second intermediate-fluid passage. Working fluid at an intermediate pressure enters the intermediate-fluid port through the valve. The intermediate pressure is greater than the suction pressure and less than the discharge pressure.
F04B 27/04 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres disposés en étoile ou en éventail
F04B 39/12 - Carcasses d'enveloppeCylindresCulassesConnexions des tubulures pour fluide
22.
Climate-Control System With Sensible and Latent Cooling
A climate-control system may include a vapor-compression circuit and an air handler assembly. The vapor-compression circuit may include a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger. The indoor heat exchanger includes a conduit that is in fluid communication with the expansion device. The air handler assembly forces air across the conduit of the indoor heat exchanger. The air handler assembly may include an airflow device having a valve and an air-to-air heat exchanger. The air-to-air heat exchanger may include a first heat-exchanger duct and a second heat-exchanger duct. Air flowing through the first heat-exchanger duct may be in a heat-transfer relationship with air flowing through the second heat-exchanger duct. The airflow device may define a first airflow path and a second airflow path. The first airflow path may include the first heat-exchanger duct. The second airflow path may bypass the first heat-exchanger duct.
A climate-control system may include first and second turbomachines, first and second heat exchangers, and a fan. The first turbomachine may be fluidly connected with a source of outdoor air. The first and second turbomachines are operable in a compressor mode and in an expander mode. The turbomachines compress air in the compressor mode and expand air in the expander mode. The first heat exchanger may receive air from the first turbomachine. The second heat exchanger may be fluidly connected to the first heat exchanger and the second turbomachine. The fan may force air across an exterior of the first heat exchanger and force air across an exterior of the second heat exchanger. The air flowing across the exteriors of the first and second heat exchangers may be fluidly isolated from air flowing inside of the first and second heat exchangers.
F24F 11/65 - Traitement électronique pour la sélection d'un mode de fonctionnement
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
F24F 13/30 - Agencement ou montage d'échangeurs de chaleur
A compressor may include first and second scrolls and a capacity-modulation system. The first and second scrolls include first and second end plates and first and second spiral wraps. The second end plate may define a suction inlet, a discharge passage, a modulation port, and a vent passage. The capacity-modulation system may include a control valve and a piston. The control valve is movable between first and second positions. The piston may be disposed within a recess in the second end plate and is movable between an open position in which communication between the modulation port and the vent passage is allowed and a closed position in which communication between the modulation port and the vent passage is prevented. Moving the control valve to the first position moves the piston to the closed position. Moving the control valve to the second position moves the piston to the open position.
F04C 28/16 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des soupapes de levage
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
A compressor may include first and second scrolls and a capacity-modulation system. The first and second scrolls include first and second end plates and first and second spiral wraps. The second end plate may define a suction inlet, a discharge passage, a modulation port, and a vent passage. The capacity-modulation system may include a control valve and a piston. The control valve is movable between first and second positions. The piston may be disposed within a recess in the second end plate and is movable between an open position in which communication between the modulation port and the vent passage is allowed and a closed position in which communication between the modulation port and the vent passage is prevented. Moving the control valve to the first position moves the piston to the closed position. Moving the control valve to the second position moves the piston to the open position.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 28/24 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
26.
Foil bearing assembly including bidirectional anti-rotation features and compressor including same
A bearing system includes a housing having an inner surface defining a bore and a slot, and a foil bearing assembly positioned within the bore. The foil bearing assembly includes an outer foil assembly, a bump foil assembly, and an inner foil assembly. The outer foil assembly includes an outer foil extending from a first outer foil end to a second outer foil end, and a first anti-rotation tab at the first outer foil end that is received by the slot to limit circumferential movement of the outer foil in a first direction. The inner foil assembly is secured to the outer foil and includes an inner foil extending from a first inner foil end to a second inner foil end, and a second anti-rotation tab at the second inner foil end that is received by the slot to limit circumferential movement of the inner foil in a second direction.
A compressor includes a shell, a compression mechanism, a driveshaft operable to drive the compression mechanism to compress a fluid, and a ring-shaped counterweight assembly positioned on the driveshaft. The counterweight assembly includes a counterweight fixed on the driveshaft and a cover attached to the driveshaft via a snap fit connection. The counterweight includes a coupling ring and a main weight having an arcuate shape, the coupling ring defining a bore receiving the driveshaft to fix the counterweight on the driveshaft. The counterweight and the cover cooperate to define the counterweight assembly, the cover extending circumferentially between two cover end surfaces each positioned adjacent one of two circumferential main weight end surfaces to define a disk-shape of the counterweight assembly. The cover includes a coupling collar including a circular base and flexible fingers engageable with a circumferential groove defined on the driveshaft to form the snap fit connection.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
28.
Systems and Methods For Assembling Liquid Desiccant Air Conditioner Panels Using Flexible Alignment Features
A method of assembling a multilayer panel for use in a heat exchanger includes positioning a frame on a work platform, the frame having two header sections and a middle section, the middle section defining a heat transfer fluid area and each header section defining a header area. The method also includes positioning a heat exchange sheet on the frame across the middle section and each header section, welding the heat exchange sheet to the frame to form a middle weld enveloping the heat transfer fluid area and two outer welds each enveloping a corresponding one of the header areas, and controlling alignment between the frame and the heat exchange sheet during welding.
B21D 53/04 - Fabrication d'autres objets particuliers d'échangeurs de chaleur, p. ex. radiateurs, condenseurs à partir des tôles
B23P 15/26 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'échangeurs de chaleur
29.
Thermal Barriers For Compressor Discharge Chambers or Cavities
Exemplary embodiments are disclosed of thermal barriers (e.g., semi-hermetic thermal barrier coatings, thermally-insulative inserts, etc.) for compressor discharge chambers or cavities. Also disclosed are exemplary methods relating to discharge heat management in a compressor by providing a thermal barrier within a compressor discharge chamber or cavity, which thermal barrier is operable for reducing heat transfer from out of the compressor discharge chamber or cavity to another adjacent portion(s) of the compressor.
Exemplary embodiments are disclosed systems configured for using setpoint changes for defrosting evaporator coils. Also disclosed are exemplary methods of using setpoint changes for defrosting evaporator coils.
Exemplary embodiments are disclosed systems configured for using setpoint changes for defrosting evaporator coils. Also disclosed are exemplary methods of using setpoint changes for defrosting evaporator coils.
A liquid desiccant regeneration system includes a regeneration tank for containing saturated liquid desiccant and an air diffuser. The regeneration tank has an air inlet, a desiccant inlet, and a desiccant outlet. The air diffuser is positioned within the regeneration tank between the desiccant inlet and the desiccant outlet. The air diffuser is operable to receive an air stream from the air inlet and diffuse the air stream into the saturated liquid desiccant contained in the regeneration tank.
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
B01D 53/18 - Unités d'absorptionDistributeurs de liquides
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
22 refrigeration system includes receiving, by a controller, a measurement of an exit pressure of a refrigerant from a gas cooler/condenser, operating, by the controller, a fan positioned to supply a flow of air into the gas cooler/condenser with a fan speed percentage at or above a first speed threshold when the controller determines based on the measurement of the exit pressure that the exit pressure is greater or equal to a pressure threshold of the refrigerant from the gas cooler/condenser, and variably controlling, by the controller, an open percentage of the HPV to cause the exit pressure of the refrigerant in the flow of refrigerant from the gas cooler/condenser to move toward a target exit pressure when the fan speed percentage is greater than or equal to the first speed threshold.
F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 41/39 - Dispositions avec plusieurs moyens de détente disposés en série, c.-à-d. détente à plusieurs étages, sur une ligne de réfrigérant menant au même évaporateur
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
35.
COMPRESSOR ASSEMBLIES INCLUDING LOWER COVERS HAVING MOUNTING FEET SKIRTS CONFIGURED FOR INCREASING MOUNTING FEET STIFFNESS AND RESISTANCE TO CRACK FORMATION
e.ge.ge.g., bolt holes, etc.) in the mounting feet. Using full, rounded, and/or radiused skirts avoids or eliminates sharp corners, such as the sharp corner fillet features of conventional lower covers that are prone to having cracks form due to vibration while in transit.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 23/02 - Pompes caractérisées par leur combinaison avec des machines motrices ou des moteurs d'entraînement particuliers ou leurs adaptations à cet effet
22 refrigeration system includes obtaining a target exit pressure of refrigerant from a gas cooler/condenser, a measurement of a pressure of the flash tank, and an open percentage of a bypass valve (BGV). Whether or not to decrease the pressure of the flash tank is determined, based at least in part on the pressure of the flash tank and the open percentage of the BGV. When the controller determines to decrease the pressure of the flash tank, the target exit pressure is increased by an amount.
F25B 1/10 - Machines, installations ou systèmes à compression à cycle irréversible à compression multi-étagée
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 41/39 - Dispositions avec plusieurs moyens de détente disposés en série, c.-à-d. détente à plusieurs étages, sur une ligne de réfrigérant menant au même évaporateur
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
37.
Liquid desiccant air conditioner modules having aerodynamic features
A three-way heat exchanger operable to transfer heat between a heat transfer fluid, a liquid desiccant, and air. The three-way heat exchanger includes an airflow inlet, an airflow outlet, and panel assemblies arranged with airflow gaps defined between adjacent panel assemblies to allow the air to flow between the airflow inlet and the airflow outlet in an airflow direction. Each panel assembly includes a frame defining a heat transfer fluid channel for channeling a flow of the heat transfer fluid through the panel assembly and a membrane positioned on the frame and defining a desiccant channel for a flow of the liquid desiccant. The frame has a leading edge proximate the airflow inlet and a trailing edge proximate the airflow outlet. The leading edges of the frames of the panel assemblies each include a leading edge aerodynamic feature.
F25B 17/02 - Machines, installations ou systèmes à sorption, à marche discontinue, p. ex. à absorption ou à adsorption l'absorbant ou l'adsorbant étant un liquide, p. ex. de la saumure
38.
Liquid Desiccant Air Conditioner Modules Having A Liquid Desiccant Mist Trap
A heat exchanger operable to condition air using a liquid desiccant. The heat exchanger includes an airflow inlet, an airflow outlet, heat exchange structures positioned between the airflow inlet and the airflow outlet, and a mesh screen positioned at the airflow outlet. Each heat exchange structure has a surface for flow of the liquid desiccant. The mesh screen selectively removes entrained liquid desiccant from the air.
F24F 13/30 - Agencement ou montage d'échangeurs de chaleur
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
39.
Liquid desiccant air conditioner modules having interlocking panels for controlling airflow
A heat exchanger includes panel assemblies arranged with airflow gaps defined between adjacent panel assemblies to allow air to flow in an airflow direction. Each panel assembly includes a frame including two header sections and a middle section, a membrane positioned on the frame, and two airflow restrictor members positioned at each header section of the frame. For each header section, a first airflow restrictor member is on a first face of the frame and a second airflow restrictor member is on a second face of the frame. For each pair of adjacent panel assemblies, the middle sections are spaced apart to define the airflow gap, and the first airflow restrictor members of a first panel assembly engage the second airflow restrictor members of a second panel assembly to form two airflow restrictors at opposite ends of the airflow gap relative to a direction other than the airflow direction.
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
An air treatment system includes a three-way heat exchanger, a heat transfer fluid loop, and a pre-treatment heat exchanger positioned on the heat transfer fluid loop. The three-way heat exchanger is operable to transfer heat and moisture between air, a liquid desiccant, and a heat transfer fluid. The heat transfer fluid loop circulates the heat transfer fluid between the three-way heat exchanger and a second heat exchanger operable to transfer heat between the heat transfer fluid and a third working fluid. The pre-treatment heat exchanger is positioned on the heat transfer fluid loop between the second heat exchanger and the three-way heat exchanger and is operable to transfer heat between the air and the heat transfer fluid upstream from the three-way heat exchanger.
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
B01D 53/14 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
B01D 53/18 - Unités d'absorptionDistributeurs de liquides
Methods of assembling multilayer heat exchange structures. An example method includes attaching an outer layer to a fluid isolation sheet such that a first fluid channel is defined between the outer layer and the fluid isolation sheet; and selectively attaching the fluid isolation sheet, with the outer layer attached thereto, to a structure defining a second fluid channel that is separated from the first fluid channel by the fluid isolation sheet, wherein an internal seal is selectively formed between the fluid isolation sheet and the structure without forming a seal between the outer layer and the fluid isolation sheet.
Compressor assemblies including lower covers having mounting feet skirts configured for increasing mounting feet stiffness and resistance to crack formation
Exemplary embodiments are disclosed of compressor assemblies including lower covers having mounting feet skirts configured for increasing mounting feet stiffness and provide better resistance to crack formation due to vibration, e.g., in mobile and transport applications, etc. The mounting feet skirts may comprise full, rounded, and/or radiused skirts disposed along or around the entire end portions of the mounting feet near the mounting holes (e.g., bolt holes, etc.) in the mounting feet. Using full, rounded, and/or radiused skirts avoids or eliminates sharp corners, such as the sharp corner fillet features of conventional lower covers that are prone to having cracks form due to vibration while in transit.
Methods of assembling a multilayer panel for use in a heat exchanger. An example method includes positioning a frame on a work platform, the frame having two header sections and a middle section, the middle section defining a heat transfer fluid area and each header section defining a frame alignment feature; positioning a heat exchange sheet on the frame across the middle section and each header section, the heat exchange sheet having two sheet alignment features each corresponding to one of the frame alignment features; inserting an alignment pin of the work platform into each pair of corresponding frame and sheet alignment features; and welding the heat exchange sheet to the frame.
B21D 53/04 - Fabrication d'autres objets particuliers d'échangeurs de chaleur, p. ex. radiateurs, condenseurs à partir des tôles
B23P 15/26 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe d'échangeurs de chaleur
A three-way heat exchanger includes an airflow inlet, an airflow outlet, a heat transfer fluid inlet manifold extending proximate the airflow outlet, and a heat transfer fluid outlet manifold extending proximate the airflow outlet. The heat exchanger also includes panel assemblies each including a frame defining a heat transfer fluid channel and a membrane positioned on the frame and defining a desiccant channel. The heat transfer fluid channel is connected to the heat transfer fluid inlet and outlet manifolds for channeling a flow of the heat transfer fluid therebetween counter to the airflow direction. Each panel assembly also includes a heat transfer fluid flow guide positioned in the heat transfer fluid channel to control the flow of the heat transfer fluid counter to the airflow direction.
A climate-control system may include a compressor, indoor and outdoor heat exchangers, a fluid line, and a control valve. The compressor may include a scrolls that cooperate to define a plurality of pockets, including outer, inner and intermediate pockets. A capacity-modulation passage is in fluid communication with the intermediate pocket. The heat exchangers are in fluid communication with the compressor. The fluid line extends from the compressor to a location between the heat exchangers and is fluidly connected to the intermediate pocket via the capacity-modulation passage. The control valve controls a flow of fluid through the fluid line. The system is operable in a high-capacity mode, an intermediate-capacity mode, and a low-capacity mode. The control valve allows fluid flow through the fluid line in the high-capacity mode and in the low-capacity mode. The control valve prevents fluid flow through the fluid line in the intermediate-capacity mode.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 28/24 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge
47.
ANTIROTATION REED VALVE SYSTEMS AND METHODS FOR COMPRESSORS
An antirotation valve system for controlling flow through a valve opening defined in a compressor surface. The antirotation valve system includes a reed and a backer each having one mounting opening and one antirotation feature, and a washer.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F16K 15/16 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles à lamelles en forme de langue
48.
Systems and methods for supplying stored heat to a vapor compression system
A vapor compression system includes a primary loop, an auxiliary loop, and first and second valves. The primary loop includes an indoor heat exchanger, an outdoor heat exchanger, and a compressor. The first valve is positionable in first and second positions, such that the first valve fluidly connects the indoor heat exchanger to the compressor in the first position. The second valve is positionable in third and fourth positions, such that the second valve fluidly connects the indoor and outdoor heat exchangers in the third position. The auxiliary loop includes a thermal storage unit, a supply duct, and a return duct. The supply duct fluidly connects a thermal storage unit exit to the indoor heat exchanger when the first valve is in the second position. The return duct fluidly connects a thermal storage unit inlet to the indoor heat exchanger when the second valve is in the fourth position.
F24F 11/875 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des appareils de stockage d’énergie thermique
F24F 11/84 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant l’apport en fluides échangeurs de chaleur aux échangeurs de chaleur au moyen de valves
49.
Climate control systems having a liquid-to-suction heat exchanger, an accumulator, and a receiver for variable liquid storage of high glide working fluids and methods for operation thereof
Climate control systems that circulates a refrigerant blend having high glide (difference in boiling points of refrigerants≥25°R (about 14K) at atmospheric pressure) include an accumulator, a compressor, a first heat exchanger for at least partially condensing the refrigerant blend, a liquid-to-suction heat exchanger disposed downstream of the first heat exchanger and upstream of the accumulator, a first expansion device, a receiver, a second expansion device, and a second heat exchanger that at least partially vaporizes the refrigerant blend, and a fluid conduit. A concentration of the refrigerant blend can be controlled by adjusting stored liquid levels in the accumulator and receiver. Methods for operating a climate control system that circulates a working fluid comprising a refrigerant blend having high glide are also provided.
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 40/00 - Sous-refroidisseurs, désurchauffeurs ou surchauffeurs
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
F25B 41/42 - Agencements pour diviser ou combiner des flux, p. ex. embranchements ou jonctions
50.
COMPRESSOR FOR REFRIGERATION SYSTEM INCLUDING INTERNAL COOLANT RETURN LINE
A compressor for a refrigeration system includes a compressor housing, a shaft, an impeller, and a motor. The compressor housing includes a main body defining a motor chamber and a coolant inlet port for coolant to enter the motor chamber and an end cap assembly connected to the main body. The end cap assembly defines a suction inlet passage, a damping chamber fluidly connected between the motor chamber and the suction inlet passage, and one or more damping chamber outlets fluidly connecting the damping chamber to the suction inlet passage to allow coolant to flow from the damping chamber into the suction inlet passage. The compressor housing defines an internal coolant return line extending between and fluidly connecting the motor chamber and the damping chamber to allow coolant to flow from the motor chamber to the damping chamber.
A three-way heat exchanger includes panel assemblies arranged in series. Each panel assembly includes a frame defining a heat transfer fluid channel and a vapor-permeable membrane positioned on the frame to define a desiccant channel separated from the heat transfer fluid channel. The three-way heat exchanger also includes clamping assemblies for exerting a clamping force on the panel assemblies. Each clamping assembly includes a tie rod extending through the frames of the panel assemblies and including opposite ends, retainers connected to the opposite ends of the tie rod, and a resilient element positioned between one of the retainers and one of the panel assemblies at one of the ends of the tie rod. The resilient element is deformable to accommodate size variations of the panel assemblies.
F28F 9/00 - CartersBoîtes de distributionSupports auxiliaires pour les élémentsÉléments auxiliaires dans les carters
F28D 1/02 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide
F28D 1/03 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec des canalisations d'échange de chaleur immergées dans la masse du fluide avec des canalisations en forme de plaques ou de laminés
F28D 1/06 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, dans lesquels l'autre source de potentiel calorifique est une grande masse de fluide, p. ex. radiateurs domestiques ou de moteur de voiture avec canalisations d'échange de chaleur faisant partie du réservoir contenant la masse du fluide ou lui étant fixées
F28F 9/007 - Supports auxiliaires pour les éléments
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
F28F 17/00 - Enlèvement de la glace ou de l'eau des appareils échangeurs de chaleur
A climate-control system may include first and second compressors, a suction manifold, and a pressure-control flow path. The first compressor may include a first shell and a first compression mechanism. The first shell may include a first suction inlet through which working fluid is drawn into the first compressor for compression in the first compression mechanism. The second compressor may include a second shell and a second compression mechanism. The second shell may include a second suction inlet through which working fluid is drawn into the second compressor for compression in the second compression mechanism. The suction manifold has first and second arms coupled to the first and second suction inlets, respectively. The pressure-control flow path may be coupled to a discharge-pressure region and to a suction-pressure region of the second compressor.
A climate-control system may include first and second compressors, a suction manifold, and a pressure-control flow path. The first compressor may include a first shell and a first compression mechanism. The first shell may include a first suction inlet through which working fluid is drawn into the first compressor for compression in the first compression mechanism. The second compressor may include a second shell and a second compression mechanism. The second shell may include a second suction inlet through which working fluid is drawn into the second compressor for compression in the second compression mechanism. The suction manifold has first and second arms coupled to the first and second suction inlets, respectively. The pressure-control flow path may be coupled to a discharge-pressure region and to a suction-pressure region of the second compressor.
A charging device includes: a first inlet configured to receive a first refrigerant in vapor form; a second inlet configured to receive the first refrigerant in liquid form; a third inlet configured to receive a second refrigerant in liquid form, where the second refrigerant is a different type of refrigerant than the first refrigerant; an outlet configured to output the first and second refrigerants to a refrigeration system; a first valve fluidly connected between the first inlet and the outlet; a second valve fluidly connected between the second inlet and the outlet; a third valve fluidly connected between the third inlet and the outlet; and a control module configured to selectively open the first, second, and third valves and charge the refrigeration system with target amounts of the first and second refrigerants, respectively.
A compressor includes a compressor housing and a compression subassembly installed in the compressor housing. The compressor housing includes a shell defining a first chamber and an end cap defining a second chamber. The compression subassembly includes a support plate positioned in the compressor housing between the shell and the end cap, a non-orbiting scroll attached to the support plate and extending from the support plate into the first chamber, a main bearing housing positioned in the first chamber and attached to the non-orbiting scroll, and an orbiting scroll positioned between the non-orbiting scroll and the main bearing housing. The support plate separates the first chamber and the second chamber and supports the compression subassembly in the compressor housing.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
56.
ANTIROTATION REED VALVE SYSTEMS AND METHODS FOR COMPRESSORS
An antirotation valve system for controlling flow through a valve opening defined in a compressor surface. The antirotation valve system includes a reed and a backer each having one mounting opening and one antirotation feature.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F16K 15/16 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles à lamelles en forme de langue
57.
Scroll assemblies and compressors including the same
A compressor includes a shell and a main bearing housing positioned within the shell. The main bearing housing includes a scroll assembly positioned within the shell and positioned relative to a first cavity of the main bearing housing, the scroll assembly includes a non-orbiting scroll, an orbiting scroll, and a cylindrical hub, and a coupling positioned between the orbiting scroll and a fixed component and movable relative to at least one of the orbiting scroll and the fixed component. A first seal may be positioned between the orbiting scroll and the coupling, a second seal may be positioned between the coupling and the main bearing housing, and a third seal may be positioned between the cylindrical hub and the main bearing housing, wherein the main bearing housing and the orbiting scroll define a pressure cavity.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
58.
SCROLL ASSEMBLIES AND COMPRESSORS INCLUDING THE SAME
A compressor (100) includes a shell (104) and a main bearing housing (180) positioned within the shell. The main bearing housing includes a scroll assembly positioned within the shell and positioned relative to a first cavity (184) of the main bearing housing, the scroll assembly includes a non-orbiting scroll (120), an orbiting scroll (122), and a cylindrical hub (154), and a coupling (302) positioned between the orbiting scroll and a fixed component and movable relative to at least one of the orbiting scroll and the fixed component. A first seal (308) may be positioned between the orbiting scroll and the coupling, a second seal (310) may be positioned between the coupling and the main bearing housing, and a third seal (318) may be positioned between the cylindrical hub and the main bearing housing, wherein the main bearing housing and the orbiting scroll define a pressure cavity (194).
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
59.
Compressor assemblies including lower covers having mounting feet skirts configured for increasing mounting feet stiffness and resistance to crack formation
Exemplary embodiments are disclosed of compressor assemblies including lower covers having mounting feet skirts configured for increasing mounting feet stiffness and provide better resistance to crack formation due to vibration, e.g., in mobile and transport applications, etc. The mounting feet skirts may comprise full, rounded, and/or radiused skirts disposed along or around the entire end portions of the mounting feet near the mounting holes (e.g., bolt holes, etc.) in the mounting feet. Using full, rounded, and/or radiused skirts avoids or eliminates sharp corners, such as the sharp corner fillet features of conventional lower covers that are prone to having cracks form due to vibration while in transit.
A controller for a system having an evaporator, a condenser, and a dynamic compressor includes a processor and a memory, which stores instructions that program the processor to determine a first heat transfer fluid temperature at a first heat transfer fluid path of the evaporator, determine a first pressure at a first working fluid path based on first heat transfer fluid temperature, determine a second heat transfer fluid temperature at a second heat transfer fluid path of the condenser, determine a second pressure at a second working fluid path based on the second heat transfer fluid temperature, calculate an estimated pressure ratio of the compressor from the first and second pressures, determine a speed setpoint of the compressor based on the estimated pressure ratio, and operate the compressor at the speed setpoint to compress a working fluid until a condition is met.
A compressor includes a shell, a non-orbiting scroll disposed within the shell, an orbiting scroll disposed within the shell and meshed with the non-orbiting scroll, a driveshaft operable to drive the orbiting scroll relative to the non-orbiting scroll, and a ring-shaped counterweight assembly positioned on the driveshaft. The counterweight assembly has two radial surfaces and a circumferential edge between the two radial surfaces, and the counterweight assembly includes a counterweight fixed on the driveshaft and a cover attached to one of the counterweight and the driveshaft via a snap fit connection. The counterweight and the cover cooperate to define the counterweight assembly.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
62.
DRIVE ASSEMBLIES AND COMPRESSORS INCLUDING THE SAME
A compressor including a shell, a scroll assembly, and driveshaft. The scroll assembly includes an orbiting scroll including an orbiting spiral wrap and a second opening including a drive bearing disposed therein. The drive bearing is axial aligned with the orbiting spiral wrap. The compressor includes an unloader rotationally connected to the driveshaft body and rotationally supported with a primary bearing.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
63.
THREE-WAY HEAT EXCHANGE MODULE HAVING UNIFORM FLUID DISTRIBUTION
An HVAC system includes a refrigerant sub-system and an air treatment sub-system. The air treatment sub-system includes a three-way heat exchanger. The HVAC system is operable to circulate heat transfer fluid between the heat exchanger and the refrigerant sub-system. The heat exchanger includes panel assemblies, heat transfer fluid inlet and outlet manifolds, and a heat transfer fluid inlet and outlet. Each panel assembly includes a heat transfer fluid channel and a desiccant channel separated from the heat transfer fluid channel. The inlet and outlet manifolds are connected to the heat transfer fluid channel of each panel assembly, and each extend between lateral sides of the heat exchanger. The inlet manifold is closed at a first lateral side and connected to the inlet at a second lateral side, and the outlet manifold is closed at the second lateral side and connected to the outlet at the first lateral side.
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
64.
THREE-WAY HEAT EXCHANGE MODULE HAVING UNIFORM FLUID DISTRIBUTION
An HVAC system includes a refrigerant sub-system and an air treatment sub-system. The air treatment sub-system includes a three-way heat exchanger. The HVAC system is operable to circulate heat transfer fluid between the heat exchanger and the refrigerant sub-system. The heat exchanger includes panel assemblies, heat transfer fluid inlet and outlet manifolds, and a heat transfer fluid inlet and outlet. Each panel assembly includes a heat transfer fluid channel and a desiccant channel separated from the heat transfer fluid channel. The inlet and outlet manifolds are connected to the heat transfer fluid channel of each panel assembly, and each extend between lateral sides of the heat exchanger. The inlet manifold is closed at a first lateral side and connected to the inlet at a second lateral side, and the outlet manifold is closed at the second lateral side and connected to the outlet at the first lateral side.
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
F24F 3/14 - Systèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par humidificationSystèmes de conditionnement d'air dans lesquels l'air conditionné primaire est fourni par une ou plusieurs stations centrales aux blocs de distribution situés dans les pièces ou enceintes, blocs dans lesquels il peut subir un traitement secondaireAppareillage spécialement conçu pour de tels systèmes caractérisés par le traitement de l'air autrement que par chauffage et refroidissement par déshumidification
F28D 5/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes pour une seule des sources de potentiel calorifique, les deux sources étant en contact chacune avec un côté de la paroi de la canalisation, utilisant l'effet réfrigérant de l'évaporation naturelle ou forcée
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
F28F 9/02 - Boîtes de distributionPlaques d'extrémité
A compressor may a first scroll, a second scroll, and a valve assembly. The second scroll may include a discharge passage. The valve assembly may include a valve housing fixed relative to the second scroll and a valve member movably received in the valve housing. The valve housing may include a plurality of angled apertures that are angled relative to a direction in which the valve member moves between the open and closed positions. The valve member is movable relative to the valve housing and valve retainer between an open position and a closed position. When the valve member is in the open position, fluid is allowed to flow through the discharge passage and the angled apertures in the valve housing. When the valve member is in the closed position, fluid flow through the discharge passage and the angled apertures is restricted.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
66.
Methods and systems for controlling a compressor cooling system
A method includes commanding a motor coolant control valve to open at a first time to provide a supply of coolant to a motor coolant flow channel that delivers coolant to a motor of a compressor. A first detection of a coolant return temperature is received at a first time from a temperature sensor connected to a coolant return line that receives coolant from the motor coolant flow channel and returns coolant to another portion of the compressor. A second detection of the coolant return temperature from the temperature sensor is received at a second time after the first time. Based on the first detection and the second detection of the coolant return temperature, it is determined if the motor coolant control valve opened at the first time, and remedial action is taken when the motor coolant control valve is determined not to have opened at the first time.
A method includes commanding a motor coolant control valve to open at a first time to provide a supply of coolant to a motor coolant flow channel that delivers coolant to a motor of a compressor. A first detection of a coolant return temperature is received at a first time from a temperature sensor connected to a coolant return line that receives coolant from the motor coolant flow channel and returns coolant to another portion of the compressor. A second detection of the coolant return temperature from the temperature sensor is received at a second time after the first time. Based on the first detection and the second detection of the coolant return temperature, it is determined if the motor coolant control valve opened at the first time, and remedial action is taken when the motor coolant control valve is determined not to have opened at the first time.
An antirotation valve system for controlling flow through a valve opening defined in a compressor surface. The antirotation valve system includes a reed and a backer each having one mounting opening and one antirotation feature.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F16K 15/16 - Soupapes, clapets ou valves de retenue à corps de soupapes flexibles à lamelles en forme de langue
A compressor may include first and second scrolls and a capacity modulation assembly. The capacity modulation assembly may include a valve ring and a modulation control valve. The valve ring is movable relative to the first scroll between a first position corresponding to a first capacity mode and a second position corresponding to a second capacity mode. The modulation control valve includes a valve body and a valve member that is movable relative to the valve body to cause corresponding movement of the valve ring. The valve body includes a cavity in which the valve member is movably disposed. The valve body includes passages in fluid communication with the cavity. A first pressure differential between fluid in one of the passages and fluid in another of the passages causes movement of the valve member to cause corresponding movement of the valve ring between the first and second positions.
F04C 28/16 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail utilisant des soupapes de levage
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 28/10 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par la modification des positions de l'ouverture de l'admission ou de l'échappement par rapport à la chambre de travail
F04C 28/24 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
A compressor includes a scroll and a discharge valve assembly mounted to the scroll. The discharge valve assembly is configured to control fluid flow through a discharge passage. The discharge valve assembly includes a first portion having a backer and a valve member. The first portion includes a discharge opening in communication with the discharge passage. The discharge valve assembly includes a second portion including a body having a top wall, an outer wall and an inner hub. The outer wall is spaced apart from and surrounds the inner hub, defining an inner passage therebetween in communication with the discharge opening. The backer is disposed between the valve member and the second portion. A portion of the outer wall engages the backer. The valve member is deflectable between a closed position restricting fluid flow through the discharge opening and an open position allowing fluid flow through the discharge opening.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 28/24 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge
F04C 28/26 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge utilisant des canaux de dérivation
71.
Variable inlet guide vane apparatus and compressor including same
A variable inlet guide vane apparatus for imparting a motion to a fluid flow entering into a compressor. The variable inlet guide vane apparatus includes a housing defining a fluid flow passageway. The housing includes a first and second housing portion, a ring gear, and a plurality of guide vanes. The guide vanes include a stem, a gear, and a vane. The stem is disposed between the first and second housing portions, the vane is arranged within the fluid flow passageway, and the gears are arranged exterior the housing.
A controller for a CO2 refrigeration system includes at least one input configured to receive an inlet air temperature from a first temperature sensor, an exit temperature from a second temperature sensor and an exit pressure from a pressure sensor, at least one output for controlling the valve and the fan, a memory, and a processor. The processor is configured by instructions stored in the memory to receive, through the at least one input, the inlet air temperature from the first temperature sensor, and control, through the at least one output, the valve and the fan based on the inlet air temperature both when the CO2 refrigeration system is operating in a transcritical mode and when the CO2 refrigeration system is operating in a subcritical mode.
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
73.
CO2 - REFRIGERATION SYSTEM AND CONTROLLER FOR CONTROLLING THE SAME
A controller for a CO2 refrigeration system includes at least one input configured to receive an inlet air temperature from a first temperature sensor, an exit temperature from a second temperature sensor and an exit pressure from a pressure sensor, at least one output for controlling the valve and the fan, a memory, and a processor. The processor is configured by instructions stored in the memory to receive, through the at least one input, the inlet air temperature from the first temperature sensor, and control, through the at least one output, the valve and the fan based on the inlet air temperature both when the CO2 refrigeration system is operating in a transcritical mode and when the CO2 refrigeration system is operating in a subcritical mode.
F25B 1/08 - Machines, installations ou systèmes à compression à cycle irréversible à compresseur à éjection, p. ex. utilisant un liquide sous pression utilisant de la vapeur sous pression
F25B 9/00 - Machines, installations ou systèmes à compression dans lesquels le fluide frigorigène est l'air ou un autre gaz à point d'ébullition peu élevé
F25B 41/20 - Disposition des soupapes, p. ex. de soupapes marche-arrêt ou de soupapes de régulation de débit
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
74.
SYSTEMS AND METHODS FOR ADJUSTING MITIGATION THRESHOLDS
An indoor air quality (IAQ) system for a building includes an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter, the IAQ parameter being one of: an amount of particulate of at least a predetermined size present in air; an amount of volatile organic compounds (VOCs) present in air; and an amount of carbon dioxide present in air. A control module is configured to selectively turn a mitigation device on and off based on the IAQ parameter. A change module is configured to, in response to a determination that the mitigation device has been on, determine a change in the IAQ parameter over time. An alert module is configured to selectively generate an alert indicative of a fault in the mitigation device based on the change.
A vapor compression system includes a compressor including a compression stage for compressing a working fluid, a first heat exchanger downstream from the compressor that receives and cools the working fluid, a second heat exchanger downstream from the first heat exchanger and upstream from the compressor that receives and heats the working fluid, and an accumulator positioned between the second heat exchanger and the compression stage. The accumulator defines an interior volume for containing a vapor phase and a liquid phase of the working fluid, and the accumulator includes an inlet to receive the working fluid from the second heat exchanger and an outlet to allow the vapor phase of the working fluid to exit the accumulator and flow towards the compression stage. The accumulator atomizes the liquid phase of the working fluid into droplets and introduces the droplets into the vapor phase of the working fluid exiting the accumulator.
F25B 40/00 - Sous-refroidisseurs, désurchauffeurs ou surchauffeurs
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
F25B 49/02 - Disposition ou montage des dispositifs de commande ou de sécurité pour machines, installations ou systèmes du type à compression
76.
VAPOR COMPRESSION SYSTEMS INCLUDING LIQUID REFRIGERANT ATOMIZER, AND METHODS OF OPERATING AND CONTROLLING THE SAME
A vapor compression system includes a compressor including a compression stage for compressing a working fluid, a first heat exchanger downstream from the compressor that receives and cools the working fluid, a second heat exchanger downstream from the first heat exchanger and upstream from the compressor that receives and heats the working fluid, and an accumulator positioned between the second heat exchanger and the compression stage. The accumulator defines an interior volume for containing a vapor phase and a liquid phase of the working fluid, and the accumulator includes an inlet to receive the working fluid from the second heat exchanger and an outlet to allow the vapor phase of the working fluid to exit the accumulator and flow towards the compression stage. The accumulator atomizes the liquid phase of the working fluid into droplets and introduces the droplets into the vapor phase of the working fluid exiting the accumulator.
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
A refrigeration system includes a main fluid loop and a secondary fluid loop. The main fluid loop includes a compressor and a heat exchanger that circulate a first working fluid. The secondary fluid loop circulates a second working fluid. The secondary fluid loop is in thermal communication with the main fluid loop at the heat exchanger. The secondary fluid loop includes a pump, a thermal energy storage, and a coil fluid line. The secondary fluid loop includes a multi-position valve configured to move between positions that selectively fluidly connect the heat exchanger, the pump, the thermal energy storage, and the coil fluid line.
A refrigeration system includes a compressor, an evaporator connected to a low pressure line of the compressor, a condenser, an expansion device, and a cooling circuit. The cooling circuit includes at least one coolant supply line to channel a coolant towards the compressor, at least one coolant flow channel defined by a housing of the compressor that channels the coolant towards a motor of the compressor, a coolant return line to channel the coolant towards the low pressure line of the compressor, and a damping chamber located between the coolant return line and the low pressure line of the compressor. The damping chamber includes a damping chamber inlet to allow the coolant to enter a damping chamber volume from the coolant return line and damping chamber outlets to allow the coolant in the damping chamber volume to enter the low pressure line of the compressor.
F04D 17/10 - Pompes centrifuges pour la compression ou l'épuisement
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
F25B 5/02 - Machines, installations ou systèmes à compression, avec plusieurs circuits d'évaporateurs, p. ex. pour faire varier la puissance frigorifique disposés en parallèle
F25B 41/42 - Agencements pour diviser ou combiner des flux, p. ex. embranchements ou jonctions
F25B 43/00 - Dispositions pour la séparation ou la purification des gaz ou des liquidesDispositions pour la vaporisation des résidus de fluides frigorigènes, p. ex. par la chaleur
79.
DRIVE ASSEMBLIES AND COMPRESSORS INCLUDING THE SAME
A compressor (100) includes a shell (104), a scroll assembly (120), and driveshaft (132). The scroll assembly includes an orbiting scroll (122) including a orbiting spiral wrap (162) and a second opening (164) including a drive bearing (166) disposed therein. The drive bearing is axially aligned with the orbiting spiral wrap. The compressor includes an unloader (200) rotationally connected to the driveshaft body (134) and rotationally supported with a primary bearing (150).
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
80.
Variable inlet guide vane apparatus combined with compressor end cap
An inlet guide vane apparatus includes a compressor end cap connectable with a main body of a compressor housing and a housing portion connected to the end cap. The housing portion and the end cap cooperatively define a fluid flow passageway and guide vane openings extending into the fluid flow passageway. The inlet guide vane apparatus also includes a ring gear rotatable relative to at least one of the housing portion and the end cap and guide vanes connected to the housing portion and the end cap. Each guide vane extends through one of the guide vane openings and includes a vane gear operably connectable with the ring gear and disposed at an exterior of the housing portion and a vane disposed within the fluid flow passageway. Each guide vane is rotatable such that an orientation of the vane within the fluid flow passageway is selectively adjustable.
A compressor including a shell, a scroll assembly, and driveshaft. The scroll assembly includes an orbiting scroll including a orbiting spiral wrap and a second opening including a drive bearing disposed therein. The drive bearing is axial aligned with the orbiting spiral wrap. The compressor includes an unloader rotationally connected to the driveshaft body and rotationally supported with a primary bearing.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
82.
COMPRESSOR COOLING SYSTEMS AND METHODS INCLUDING COOLANT DAMPING CHAMBER
A refrigeration system includes a compressor, an evaporator connected to a low pressure line of the compressor, a condenser, an expansion device, and a cooling circuit. The cooling circuit includes at least one coolant supply line to channel a coolant towards the compressor, at least one coolant flow channel defined by a housing of the compressor that channels the coolant towards a motor of the compressor, a coolant return line to channel the coolant towards the low pressure line of the compressor, and a damping chamber located between the coolant return line and the low pressure line of the compressor. The damping chamber includes a damping chamber inlet to allow the coolant to enter a damping chamber volume from the coolant return line and damping chamber outlets to allow the coolant in the damping chamber volume to enter the low pressure line of the compressor.
An inlet guide vane apparatus includes a compressor end cap connectable with a main body of a compressor housing and a housing portion connected to the end cap. The housing portion and the end cap cooperatively define a fluid flow passageway and guide vane openings extending into the fluid flow passageway. The inlet guide vane apparatus also includes a ring gear rotatable relative to at least one of the housing portion and the end cap and guide vanes connected to the housing portion and the end cap. Each guide vane extends through one of the guide vane openings and includes a vane gear operably connectable with the ring gear and disposed at an exterior of the housing portion and a vane disposed within the fluid flow passageway. Each guide vane is rotatable such that an orientation of the vane within the fluid flow passageway is selectively adjustable.
An IAQ sensor module includes: a sensor configured to measure an amount of an item in air, the item being one of particulate matter, volatile organic compounds, and carbon dioxide; a minimum module configured to selectively store the amount of the item as a minimum value of the amount when a mitigation device has been on for at least a predetermined period, the mitigation device being configured to decrease the amount of the item in the air when on; a storing module configured to selectively store the minimum value as an initial minimum value; an offset module configured to determine a drift offset for the sensor based on a difference between the minimum value and the initial minimum value; and an adjustment module configured to determine an adjusted amount of the item in the air at the IAQ sensor module based on the amount and the drift offset.
A driveshaft assembly (170) for a compressor (100) includes an unloader assembly (172) and a driveshaft (138). The unloader assembly (172) includes an unloader (260) and a counterweight (262). The unloader assembly (172) is rotationally supported by a bearing (140). The unloader (260) includes a flank surface (290) that is slidably engaged with a flank surface (234) on the driveshaft (138, 160).
F01C 21/10 - Organes externes coopérant avec des pistons rotatifsCarcasses d'enveloppes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
86.
Surge control systems and methods for dynamic compressors
A system includes a dynamic compressor and a controller. The dynamic compressor includes a motor having a driveshaft rotatably supported within the dynamic compressor and a compression mechanism connected to the driveshaft and operable to compress a working fluid upon rotation of the driveshaft. The controller is connected to the motor and includes a processor and a memory. The memory stores instructions that program the processor to operate the motor to compress the working fluid at a motor speed greater than a predicted minimum surge speed plus a control margin, determine when surge events have occurred, store, in the memory, an indication of each surge event that the processor determined to have occurred, and determine whether or not to take a protective action when the processor determines that a surge event has occurred.
A driveshaft assembly for a compressor includes an unloader assembly and a driveshaft. The unloader assembly includes an unloader and a counterweight. The unloader assembly is rotationally supported by a bearing. The unloader includes a flank surface that is slidably engaged with a flank surface on the driveshaft.
F04C 29/00 - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04D 29/66 - Lutte contre la cavitation, les tourbillons, le bruit, les vibrations ou phénomènes analoguesÉquilibrage
A conditioning system for a conditioned interior space includes a vapor compression system, an evaporative cooling system, and a controller. The vapor compression system includes an evaporator, a condenser, a refrigerant active fluid for flowing between the evaporator and the condenser, a first fan to produce a first airflow toward the conditioned interior space, and a second fan for producing a second airflow from the condenser toward an exterior space. The evaporative cooling system includes a first tank containing a non-refrigerant active fluid, and a heat exchange device fluidically coupled to the first tank to receive the non-refrigerant active fluid. The first fan is positioned to produce the first airflow through the heat exchange device toward the conditioned interior space. The controller is programmed to control cooperative operation of the vapor compression system and the evaporative cooling system to condition the conditioned interior space.
Climate control systems and methods of operating them are provided that circulate a working fluid including a high glide refrigerant blend having first and second refrigerants with a difference in boiling points ≥about 25° F. at atmospheric pressure. The first refrigerant comprises carbon dioxide. The system includes a gas-liquid separation vessel, where a compressor receives the vapor stream and generates a pressurized vapor stream. A liquid pump receives the liquid stream and generates a pressurized liquid stream. A condenser is disposed downstream of the compressor and liquid pump and receives and cools the pressurized mixed vapor and liquid stream. An evaporator receives and at least partially vaporizes the multiphase working fluid and directs it to the gas-liquid separating vessel. An expansion device between the condenser and the evaporator processes the multiphase working fluid stream. Lastly, a fluid conduit for circulating the working fluid through the components is provided.
F24F 11/86 - Systèmes de commande caractérisés par leurs grandeurs de sortieDétails de construction de tels systèmes pour la commande de la température de l’air fourni en commandant des compresseurs dans les circuits de pompes à chaleur ou de réfrigération
F24F 1/022 - Climatiseurs individuels monoblocs pour le conditionnement de l'air, c.-à-d. avec tout l'appareillage nécessaire au traitement placé dans une enveloppe à cycle à compression
90.
FOIL BEARING ASSEMBLY INCLUDING PERFORATED INNER FOIL ASSEMBLY AND COMPRESSOR INCLUDING SAME
A bearing system includes a bearing housing and a foil bearing assembly. The bearing housing includes a sleeve defining a cylindrical bore, and a mounting structure for connecting the bearing system to a compressor housing. The foil bearing assembly is positioned within the cylindrical bore and includes an inner foil assembly and a bump foil assembly. The bump foil assembly includes a plurality of bump foils disposed circumferentially about the inner foil assembly. Each bump foil is spaced circumferentially from an adjacent bump foil to define a gap therebetween. The inner foil assembly includes a cylindrical inner surface defining a plurality of perforations extending radially therethrough. Each perforation is radially aligned with one of the gaps between adjacent bump foils.
A vapor compression system includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a first valve, and a second valve. The compressor has an inlet connected to a suction flow and an exit connected to a discharge flow. The first valve is movable to connect the discharge flow to one of the indoor and outdoor heat exchangers. The second valve is movable to connect the suction flow to one of the indoor and outdoor heat exchangers.
A bearing system includes a bearing housing and a foil bearing assembly. The bearing housing includes a sleeve defining a cylindrical bore, and a mounting structure for connecting the bearing system to a compressor housing. The foil bearing assembly is positioned within the cylindrical bore and includes an inner foil assembly and a bump foil assembly. The bump foil assembly includes a plurality of bump foils disposed circumferentially about the inner foil assembly. Each bump foil is spaced circumferentially from an adjacent bump foil to define a gap therebetween. The inner foil assembly includes a cylindrical inner surface defining a plurality of perforations extending radially therethrough. Each perforation is radially aligned with one of the gaps between adjacent bump foils.
A vapor compression system includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a first valve, and a second valve. The compressor has an inlet connected to a suction flow and an exit connected to a discharge flow. The first valve is movable to connect the discharge flow to one of the indoor and outdoor heat exchangers. The second valve is movable to connect the suction flow to one of the indoor and outdoor heat exchangers.
A refrigerant leak detection system includes a leak sensor module for sensing leaked refrigerant and a universal connector. The universal connector is configured as a junction for connecting an AC voltage source with the leak sensor module and an evaporator fan of a refrigerated case. The universal connector is configured to be operable for selectively supplying AC voltage from the AC voltage source to the evaporator fan, or to the leak sensor module, or to both the evaporator fan and the leak sensor module. When the leak sensor module is activated to conduct leak testing, the AC voltage from the AC voltage source to the evaporator fan is interrupted by the universal connector to thereby turn OFF the evaporator fan and facilitate detection of any leaked refrigerant.
A system includes a dynamic compressor and a controller having a processor and a memory. The compressor includes a first compressor stage having a first variable inlet guide vane (VIGV) and a second compressor stage having a second VIGV. The memory stores instructions that program the processor to operate the compressor at a current speed, a first position of the first VIGV, and a second position of the second VIGV to compress the working fluid, and to determine if a condition is satisfied. If the condition is not satisfied, the processor is programmed to continue to operate the compressor at the current speed, the first position of the first VIGV, and the second position of the second VIGV. If the condition is satisfied, the processor is programmed to change the second position of the second VIGV to a third position and maintain the first position of the first VIGV.
A compressor may include first and second scrolls, and a shutdown assembly. The first and second scrolls have first and second spiral wraps, respectively. The second scroll includes a discharge passage that receives compressed working fluid from a pocket defined by the first and second spiral wraps. The shutdown assembly may include a valve housing and a valve member. The valve housing may include a first aperture that receives working fluid from the discharge passage. The valve member may include a valve stem and a valve head. The valve stem may be movably received in a second aperture of the valve housing and has a smaller diameter than a diameter of the valve head. The valve member may be movable between a closed position in which the valve head restricts flow through the discharge passage and an open position in which the valve head allows flow through the discharge passage.
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 28/06 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles spécialement adaptées pour arrêter, pour démarrer, pour le ralenti ou pour un fonctionnement à charge nulle
A compressor may include first and second scrolls, and a shutdown assembly. The first and second scrolls have first and second spiral wraps, respectively. The second scroll includes a discharge passage that receives compressed working fluid from a pocket defined by the first and second spiral wraps. The shutdown assembly may include a valve housing and a valve member. The valve housing may include a first aperture that receives working fluid from the discharge passage. The valve member may include a valve stem and a valve head. The valve stem may be movably received in a second aperture of the valve housing and has a smaller diameter than a diameter of the valve head. The valve member may be movable between a closed position in which the valve head restricts flow through the discharge passage and an open position in which the valve head allows flow through the discharge passage.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 27/00 - Systèmes d'étanchéité dans les pompes à piston rotatif spécialement adaptées pour les fluides compressibles
F04C 28/26 - Commande, surveillance ou dispositions de sécurité pour les pompes ou les installations de pompage spécialement adaptées pour les fluides compressibles caractérisées par l'utilisation des soupapes pour commander la pression ou le débit, p. ex. soupapes de décharge utilisant des canaux de dérivation
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
A compressor may include an orbiting scroll, a non-orbiting scroll, and suction conduit. The non-orbiting scroll is meshingly engaged with the orbiting scroll and includes a lower scroll piece and an upper scroll piece that is mounted to the lower scroll piece. The suction conduit is mounted to the non-orbiting scroll. The suction conduit includes an inlet, an outlet, and a mounting flange. The outlet is disposed adjacent to and in fluid communication with a suction inlet of the non-orbiting scroll. At least a portion of the mounting flange is captured between the upper and lower scroll pieces.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressiblesInstallations de pompage spécialement adaptées pour les fluides compressiblesPompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p. ex. caractéristiques de structure de l'admission ou de l'échappement
A bearing system for a compressor including an unloader at least partially received within a recess of a driveshaft. The unloader includes an outer surface that is engaged with a bearing. An inner surface of the unloader is curved such that the unloader is pivotable relative to the driveshaft unload forces on bearing caused by deflection of the driveshaft.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c.-à-d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F16C 23/08 - Roulements à billes ou à rouleaux à autoréglage
F16C 35/073 - Leur fixation sur l'arbre ou dans la carcasse d'enveloppe avec interposition d'un organe entre l'arbre et la bague intérieure de roulement
A heat-pump system includes a compressor, an outdoor heating exchanger, an indoor heat exchanger, an expansion device, and a supplemental heater. The outdoor heat exchanger is in fluid communication with the compressor. The indoor heat exchanger is in fluid communication with the compressor. The expansion device is in fluid communication with the indoor and outdoor heat exchangers. The supplemental heater includes a heat source and a working-fluid conduit. The heat source is in a heat-transfer relationship with the working-fluid conduit such that the heat source is configured to heat the working-fluid conduit. The working-fluid conduit is disposed fluidly between the expansion device and the indoor heat exchanger.
