Provided is a control valve for a variable capacity compressor, the control valve including: a valve body including a crank-chamber port, a discharge port, a suction port, a control channel formed inside the control valve such that the crank-chamber port and the discharge port communicate with each other, and a first bleeding channel formed such that the crank-channel port and the suction port communicate with each other; an operating unit provided in the valve body and including a second bleeding channel communicated from a center area to a side surface of the operating unit; and a driving unit provided in the valve body and connected to the operating unit to enable the operating unit to reciprocally move according to a current applied by an external source.
F04B 45/02 - Pompes ou installations de pompage, ayant des organes de travail flexibles, spécialement adaptées pour fluides compressibles ayant des soufflets
Provided is a variable displacement swash plate type compressor including: a lug plate fixed to a driving shaft; and a swash plate combined to the lug plate and whose tilt angle is varied according to rotatory motion, wherein the lug plate includes a protruding portion protruding towards the swash plate, and a rotatory power projection transmitting power for rotating the swash plate is formed at a leading end of the protruding portion through the swash plate. Accordingly, a varying operation between a maximum tilt angle and a minimum tilt angle of the swash plate and a rotatory power transmitting operation for rotating the swash plate are performed at different locations, thereby simultaneously improving the varying operation and the rotatory power transmitting operation of the swash plate.
F04B 1/29 - Commande pour "machines" ou pompes à cylindres immobiles en modifiant les positions relatives d'un plateau oscillant et d'un bloc-cylindres
F04B 1/14 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles
3.
Displacement control valve for variable displacement compressor
The invention provides a displacement control valve for a variable displacement compressor comprising: a valve housing having a discharge chamber connecting space and a crank chamber connecting space; an electronic solenoid; and a valve body configured to reciprocate within the valve housing the electronic solenoid. The displacement control valve is opened and closed when the valve body moves from the discharge chamber connecting space toward the crank chamber connecting space, making it possible to enlarge a cross-sectional area of the valve body and improving productivity.
F16K 17/38 - Soupapes ou clapets de sûretéSoupapes ou clapets d'équilibrage fonctionnant sous l'action de circonstances extérieures, p. ex. un choc, un changement de position d'une température excessive
F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres
4.
Scroll compressor with improved back pressure force control function
A scroll compressor that includes: a housing, a drive unit configured to generate a rotating force; and a scroll compression unit having a fixed scroll having a spiral scroll wrap for compressing a suctioned fluid and fixed irrespective of a rotation of a drive shaft of the drive unit and a swivel scroll swiveled according to rotation of the drive shaft and having a spiral scroll wrap, comprises: a main frame disposed within the housing to support a rear surface of the swivel scroll and having a back pressure chamber in an interior thereof; a thrust plate disposed between the swivel scroll and the main frame; and a sealing member inserted between the swivel scroll and the main frame. The sealing member includes a first sealing member inserted between the swivel scroll and the thrust plate, and a second sealing member inserted between the thrust plate and the main frame.
An exhaust check valve installed in an exhaust opening of a swash plate compressor comprises: a valve body having a refrigerant inlet and at least one refrigerant outlet; a movable body installed in the valve body and configured to move such that the refrigerant inlet and the refrigerant outlet communicate with each other; and a spring configured to push the movable body with a certain pressure. At least one refrigerant vent hole for venting a leak gas generated during an operation below a preset pressure difference to the outside of the valve body is formed in the valve body.
The present invention relates to a scroll compressor, with an oil-separating drive shaft, that comprises a housing a fixed scroll which is installed inside the housing, a orbiting scroll which orbits around the fixed scroll, and a drive shaft which drives the orbiting scroll. In the orbiting scroll, a discharge hole is formed. A discharge path is formed along the longitudinal direction of the drive shaft so that discharged coolant from the discharge hole flows therethrough. At least, a part of the discharge path is inclined forward from the rotary axis to the exterior. A lubrication hole is formed in the drive shaft that penetrates from the discharge path to the outer surface of the drive shaft.
F01C 1/02 - "Machines" ou machines motrices à piston rotatif du type à engrènement, c.-à-d. avec mouvement de translation circulaire des organes coopérants, tous les organes ayant le même nombre de dents ou de parties équivalentes de prise
F01C 1/063 - "Machines" ou machines motrices à piston rotatif du type à engrènement, c.-à-d. avec mouvement de translation circulaire des organes coopérants, tous les organes ayant le même nombre de dents ou de parties équivalentes de prise comportant des organes coaxiaux à changement continuel de leur espacement circonférentiel
Provides is a variable displacement swash plate type compressor comprising a drive shaft, a lug plate fixedly installed at one side of the drive shaft, a swash plate dispose at another side of the drive shaft and rotated by the lug plate to vary a tilt angle thereof, a sleeve reciprocally moving along the drive shaft to let the swash plate rotate, and a spring supported between the sleeve and the lug plate, characterized in that the variable displacement swash plate type compressor comprises a restriction ring installed around the drive shaft between the lug plate and the sleeve to contact with the swash plate at a maximum tilt angle of the swash plate, wherein an end of the restriction ring is contacted with the lug plate and another end of the restriction ring is supported by the spring. Thus, since the direct contact between the swash plate and the lug plate is prevented, when the swash plate reaches at the maximum tilt angle, it is possible to reduce the noise and the wear remarkably.
Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block, a lug plate fixedly installed at the drive shaft, a swash plate rotated by the lug plate to vary its inclination angle, and pistons reciprocally accommodated in the cylinder bores depending on rotation of the swash plate, the compressor including a projection projecting from the lug plate toward the swash plate and disposed only behind the rotational direction of the drive shaft, a slope formed on the rear part of the lug plate at one side of the projection, an arm projecting from the swash plate toward the lug plate, a first guide coupled to the arm in front of the rotational direction of the drive shaft to move along the slope in a contact manner, and a second guide coupled to the arm adjacent to the projection to move along the slope in a contact manner.
F04B 1/12 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal
F04B 27/08 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal
9.
Inverter connection terminal with cables attached to parts of the terminal projecting from upper and lower surfaces of a plate
The present invention provides an inverter connection terminal assembly for an electric compressor. The inverter connection terminal assembly includes a connection terminal, in which upper and lower terminal projections project from the upper and lower surfaces of a plate, respectively, an inverter connection cable connected to the upper terminal projection of the connection terminal, a motor connection cable connected to the lower terminal projection of the connection terminal, an upper connector for connecting the upper terminal projection and the inverter connection cable, and a lower connector for connecting the lower terminal projection and the motor connection cable, wherein the lower terminal projection of the connection terminal includes a thread formed on the surface thereof such that the motor connection cable is fixed to the lower terminal projection by fastening a nut while a washer and a ring connector are sequentially inserted into the lower terminal projection.
Provided is an oil separating structure of a variable displacement compressor including: a cylinder block having a plurality of cylinder bores; a front housing disposed in the front of the cylinder block to form a swash plate chamber; a drive shaft rotatably supported at the cylinder block; a lug plate disposed in the swash plate chamber of the front housing and fixedly installed at the drive shaft; a rear housing disposed in the rear of the cylinder block and having a discharge chamber and a suction chamber communicating with the cylinder bores; a swash plate installed to be rotated by the lug plate to vary its inclination angle; pistons connected to the swash plate and reciprocating in the cylinder bores; a suction path for communicating the swash plate chamber and the discharge chamber; an additional exhaust path for communicating the swash plate chamber and the suction chamber; and a control valve installed in the middle of the suction path, characterized in that the drive shaft has a communication aperture formed therein for communicating the swash plate chamber and the suction chamber, and the lug plate has a first communication hole passing therethrough and a second communication hole formed therein for communicating the first communication hole and the communication aperture. Therefore, oil and refrigerant are smoothly separated from each other using only the communication hole formed in the lug plate without an additional oil separator, thereby simplifying an inner constitution of a compressor.
F04B 1/12 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal
Provided is a scroll compressor having an improved function of oil circulation and back pressure control. The scroll compressor includes: a housing; a drive part for generating a rotational force; a drive shaft driven by the drive part; and a scroll compression part including a stationary scroll fixed regardless of rotation of the drive shaft and having a scroll wrap for compressing sucked fluid and a discharge port for supplying coolant into a discharge chamber, and an orbiting scroll orbited depending on rotation of the drive shaft and having a scroll wrap, characterized in that the coolant compressed by the scroll compression part is conveyed to the discharge chamber, the coolant of the discharge chamber is separated into oil and gas in an oil separator, the gas being discharged through a discharge hole and the oil being supplied into a back pressure chamber through a return path formed in the stationary scroll, and the oil is returned into a suction chamber through a back pressure adjustment valve.
A variable displacement swash plate type compressor with a smooth inclined moving feature which includes a cylinder block having a plurality of cylinder bores, a front housing disposed at a front end of the cylinder block to form a swash plate chamber, a drive shaft rotatably supported in the cylinder block, a lug plate disposed in the swash plate chamber of the front housing and fixedly installed to the drive shaft, a rear housing disposed at a rear end of the cylinder block and having a suction chamber and a discharge chamber in fluid communication with the cylinder bores through a suction valve and a discharge valve, a swash plate rotated by the lug plate and installed to have a variable inclination angle, a spring supported between the lug plate and the swash plate, and pistons slidably engaged with the swash plate to be reciprocated in the cylinder bores.
F01B 3/00 - "Machines" ou machines motrices à piston alternatif avec axes des cylindres coaxiaux, parallèles ou inclinés par rapport à l'axe de l'arbre principal
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