A heater having first and second oxygen depletion sensors and a main burner injector and configurable for the delivery of at least first and second types of fuels.
F23C 1/00 - Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air
F23N 3/06 - Regulating air supply or draught by conjoint operation of two or more valves or dampers
A shut-off valve that has a closure orifice, a closure member to open and close a gas passage through the shut-off valve, an electromagnetic actuator including a movable assembly attached to the closure member, the closure member, and an electromagnetic filed generator magnetically associated with the movable assembly. The shut-off valve also includes a manual actuator for acting on the movable assembly, the manual actuator comprising an open position in which it is decoupled from the movable assembly, the electromagnetic actuator thus being able to act on the closure member to cause its closure.
A gas valve having a valve body that at least partially defines a gas enclosure. The valve body has an intake, an outlet and a hole for communicating the outlet with the intake. A valve seat within the gas enclosure cooperates with the hole to permit or to prevent the passage of gas through the hole. An electrically activated actuator, when activated, is configured to move or keep the valve seat in the open position. The gas valve includes connection means that connect the actuator to the outside of the gas valve, the connection means being disposed at least in part on a metal core printed circuit board. The printed circuit board is soldered to a metal structure located within the gas enclosure to at least partially seal the gas enclosure, the metal structure supporting, at least in part, the electrical actuator.
A dual pilot light burner suitable for working with natural gas (NG) or liquefied gas (LPG), comprising a support (10), a regulating sleeve (30) comprising a first nozzle (31), an air and gas mixing and intake chamber (40), and an injector (50) comprising a second nozzle (51), the second nozzle (51) being able to be located with respect to the first nozzle (31) in a first position for supplying a first gas, and a second position for supplying a second gas. The regulating sleeve (30) is operated with a tool directly from the outside, moving the regulating sleeve (30) and arranging the second nozzle (51) in the first or second position with respect to the first nozzle (31).
Shut-off gas valve comprising an inlet, an outlet, an intermediate orifice for communicating the outlet with the inlet, a closure member that closes the intermediate orifice in a closing position and prevents said communication and not preventing said communication in an opening position, and an electromagnetic actuator to cause the closure member to change position. The electromagnetic actuator comprises a static armature, a static permanent magnet and a movable element attached to the closure member. The movable element comprises a bobbin associated with the armature and a coil wound around and attached to the bobbin, cooperating with the permanent magnet depending on its power supply to cause the closure member to change position. The valve comprises at least one ferromagnetic element attached to the movable element, which adheres to the permanent magnet when the closure member is in the opening position.
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 31/40 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
Gas shut-off valve with thermal safety comprising a gas inlet (1 ), a gas outlet (2), a body (1 1 ) comprising the inlet (1 ) and the outlet (2) and defining an intermediate opening (3) between the inlet (1 ) and the outlet (2), and a shut-off element (4). The body (1 1 ) comprises a housing arranged on the intermediate opening (3), the shut-off element (4) being arranged in the housing and the valve (100) comprising a cover (5) arranged on the housing and attached to the body (1 1 ), a ferromagnetic element (6) arranged in the housing fixed to the shut-off element (4) and comprising a predetermined Curie temperature, a spring (7) associated with the shut-off element (4) and with the cover (5), and a permanent magnet (8) attached to the cover (5). The ferromagnetic element (6) is arranged between the permanent magnet (8) and the shut-off element (4).
Shut-off gas valve comprising an inlet (1), an outlet (2), an intermediate orifice for communicating the outlet (2) with the inlet (1), a closure member that closes the intermediate orifice in a closing position and prevents said communication and not preventing said communication in an opening position, and an electromagnetic actuator to cause the closure member to change position. The electromagnetic actuator comprises a static armature, a static permanent magnet and a movable element attached to the closure member. The movable element comprises a bobbin associated with the armature and a coil wound around and attached to the bobbin, cooperating with the permanent magnet depending on its power supply to cause the closure member to change position. The valve (100) comprises at least one ferromagnetic element (61; 62) attached to the movable element, which adheres to the permanent magnet when the closure member is in the opening position.
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 31/40 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
A gas cooking appliance comprising at least one gas burner (2), at least one control device (3) comprising a gas regulating valve (4) regulating the at least one gas burner (2), a knob (5) controlling the opening ON and closing OFF of said valve (4), and a position sensor (6) detecting the ON-OFF position of the knob (5), and at least one signaling device (7) comprising a light signal source (8) that emits an alarm signal. The light signal source (8) emits the alarm signal during a time T1 when the position sensor (6) detects that the knob (5) is in the OFF position, after the knob (5) having been in the ON position, and the gas burner (2) has been switched on at least during a time T2.
Cooking appliance having an external control panel equipped with one or more regulating valves, where the rotary regulator organ is equipped with various peripheral openings for supplying a flow Q. For the supply of one or another type of gas, NG or LPG, either the control knob or a bezel disk in the external panel are interchangeable on the appliance, being chosen between two different available units, one and the other permitting two different angular position limits A2, A3 of the regulator organ or the supply of a constant flow Qmin through one or another opening with calibrated sections, respectively for NG or LP gas. An appendix in the control knob guided in a slide groove on the control panel of the appliance, or a tongue on the bezel disk stopping the rotation of the control knob, determines the travel limit A2 for the supply of Qmin of NG.
F24C 1/02 - Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of groups Stoves or ranges in which the type of fuel or energy supply is not specified adapted for the use of two or more kinds of fuel or energy supply
F23C 1/08 - Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air liquid and gaseous fuel
F23D 17/00 - Burners for combustion simultaneously or alternately of gaseous or liquid or pulverulent fuel
F16K 5/02 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfacesPackings therefor
F23K 5/00 - Feeding or distributing other fuel to combustion apparatus
F24C 3/12 - Arrangement or mounting of control or safety devices
G01F 15/00 - Details of, or accessories for, apparatus of groups insofar as such details or appliances are not adapted to particular types of such apparatus
F16K 5/08 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary Details
F23D 14/46 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid Details
F16K 5/10 - Means for additional adjustment of the rate of flow
A control panel for controlling the operation of hotplates situated on a cooking appliance. The control panel has a translucent plate that permits the location of operating elements to be visually displayed on a top surface thereof only when lighting elements associated with the operating elements are energized. The lighting elements are selectively energized and/or de-energized so that only the operating elements of a particular hotplate are visible on the top surface of the translucent plate while a user is in the process of selecting or otherwise altering an operating parameter of the particular hot plate.
A heater having first and second oxygen depletion sensors and a main burner injector and configurable for the delivery of at least first and second types of fuels.
F23C 1/00 - Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air
F23N 3/06 - Regulating air supply or draught by conjoint operation of two or more valves or dampers
12.
REGULATION VALVE FOR A GAS COOKING APPLIANCE AND GAS COOKING APPLIANCE INCORPORATING SAID REGULATION VALVE
Regulation valve for a gas cooking appliance adapted for the supply of different types of fuel gas, in particular natural gas (NG) or liquefied gas (LPG), which comprises a valve body (2) with an inlet conduit (3) and an outlet conduit (4), and a rotatable regulating organ (5) housed in said valve body (2), said regulating organ (5) comprising a plurality of inlet holes connected to the inlet conduit (3) which, by means of the rotation of said regulating organ (5), allow a gas flow to be altered, wherein the inlet holes of the regulating organ (5) corresponding to the liquefied gas (LPG) are in a first axial position (7), and the inlet holes corresponding to the natural gas (NG) are in a second axial position (8).
Gas valve comprising a body (100) that comprises a gas enclosure with an intake (10), an outlet (11) and a hole for communicating the outlet (11) with the intake (10), a member with a valve seat that cooperates with the hole in a position to prevent the passage of gas through the hole or in an open position to allow it, actuation means to keep the valve seat in the open position, and connection means that connect the actuation means to the outside of the valve (300). The valve (300) also comprises a metal core printed circuit board (6) that comprises the connection means. The member comprises a metal structure soldered to the printed circuit board (6), which defines a housing for the actuation means, and which comprises a window.
Gas valve comprising a body (100) that comprises a gas enclosure with an intake (10), an outlet (11) and a hole for communicating the outlet (11) with the intake (10), a member with a valve seat that cooperates with the hole in a position to prevent the passage of gas through the hole or in an open position to allow it, actuation means to keep the valve seat in the open position, and connection means that connect the actuation means to the outside of the valve (300). The valve (300) also comprises a metal core printed circuit board (6) that comprises the connection means. The member comprises a metal structure soldered to the printed circuit board (6), which defines a housing for the actuation means, and which comprises a window.
Control method for a washing household appliance comprising a drainage pump unit with an impeller and a motor supplied with an alternating supply voltage of a determined frequency from among a plurality of possible preset frequencies. According to one implementation the method involves an adjustment stage in which the frequency of the motor supply voltage is regulated between the preset frequencies. The method also includes an application stage in which a stator voltage is applied to the motor, the frequency of the motor supply voltage being regulated between the preset frequencies in accordance with the stator voltage applied.
Gas cooking appliance comprising a plurality of burners, each burner being associated to at least one actuator and a thermocouple (4). The actuator opens or closes the corresponding burner when a user acts on said actuator. The thermocouple (4) generates an electrical signal when it detects a flame in the corresponding burner. The cooking appliance also comprises at least one main valve that comprises a safety system that comprises a magnetic unit (5). Said magnetic unit is controlled according to the signals of the thermocouples (4), it being supplied directly and sequentially by the thermocouples (4) whose burners has been opened by acting the corresponding actuator.
A regulation valve having a valve body with a gas inlet. Housed within the valve body is a rotary regulatory body having a first inlet orifice corresponding to a first minimum flow of a first type of gas and a second inlet orifice corresponding to a second minimum flow of a second type of gas. The first and second inlet orifices are angularly displaced so that when the regulatory body assumes a first angular position within the regulatory body the first inlet orifice faces the gas inlet and so that when the regulatory body assumes a second angular position within the regulatory body the second inlet orifice faces the gas inlet. The regulation valve includes first and second sets of cooperating features that are capable of limiting rotation of the regulatory body to the first and second angular positions, respectively.
A gas valve having a gas enclosure with a gas inlet, a gas outlet and a passage opening situated between the gas inlet and the gas outlet. A valve seat of the valve cooperates with the passage opening to regulate the flow of gas through the valve. An electrical actuator assembly is operatively coupled with the valve seat to regulate the flow of gas through the valve. In one implementation the gas enclosure is at least in part sealed by an elastic sealing member that is pressed upon by a printed circuit board that electrically connects the actuator assembly to an exterior of the gas valve.
A heater having first and second oxygen depletion sensors and a main burner injector and configurable for the delivery of at least first and second types of fuels.
Gas valve comprising a gas enclosure (1) with an inlet, an outlet and a passage opening (13) to communicate the outlet with the inlet, a valve seat (30) that cooperates with the passage opening (13) to close it, internal means connected to the exterior of the valve (300), connection means through which the internal means are communicated or connected to the exterior of the valve (300), and elastic means (5) to close the gas enclosure (1) in a sealed manner. Said valve (300) also comprises a metal printed circuit board (6) housed in the second body (2), which is connected to the internal means and which comprises a connection area (60) with the connection means.
Gas valve comprising a gas enclosure (1) with an inlet, an outlet and a passage opening (13) to communicate the outlet with the inlet, a valve seat (30) that cooperates with the passage opening (13) to close it, internal means connected to the exterior of the valve (300), connection means through which the internal means are communicated or connected to the exterior of the valve (300), and elastic means (5) to close the gas enclosure (1) in a sealed manner. Said valve (300) also comprises a metal printed circuit board (6) housed in the second body (2), which is connected to the internal means and which comprises a connection area (60) with the connection means.
A dual fuel vent free gas heater. In one implementation the heater includes a gas burner adapted to receive one of a first type of gas or of a second type of gas with a first pilot burner intended to receive the first type of gas and a second pilot burner intended to receive the second type of gas. A first temperature sensor is located adjacent the first pilot burner and a second temperature sensor is located adjacent the second pilot burner. A normally closed thermal switch is coupled to the first temperature sensor and located in the electrical flow path between a voltage source and a gas control valve actuator, the thermal switch configured to open when the temperature detected by the first temperature sensor exceeds a predetermined temperature indicative that the second type of gas is being delivered to the first pilot burner.
Regulation valve for a gas cooking apparatus suitable for supplying at least one burner that comprises at least two flame crowns. Said valve comprises a rotating regulation member that, by means of its rotation, closes or opens the passage of the gas flow; a drive shaft (6) that rotates in conjunction with the regulation member (4); a guide cover (7) that comprises end-of-stroke stops that delimit the angular stroke of the regulation member; and a projection comprised on the drive shaft (6) that determines the end of the angular stroke of the regulation member when it interacts with the end-of-stroke stops. The valve also comprises stopper means that interact with the projection of the drive shaft (6), delimiting the angular movement of the rotating regulation member when the drive shaft (6) is operated axially.
A method for controlling an induction apparatus having an induction coil. In one implementation the induction apparatus includes a capacitor that is connected in parallel with the induction coil to form a parallel resonant circuit, and also includes a switch connected in series with the parallel resonant circuit, between the parallel resonant circuit and a reference voltage. According to one method, a digital test signal dependent on the voltage in a node disposed between the switch and the parallel resonant circuit is generated, the switch is closed for a predetermined closure time and then reopened at the end of the closure time. With the switch reopened, the test signal is evaluated for a predetermined waiting time in order to determine the presence or absence of a vessel on the induction coil.
G01R 27/28 - Measuring attenuation, gain, phase shift, or derived characteristics of electric four-pole networks, i.e. two-port networksMeasuring transient response
25.
CONTROL METHOD FOR AN INDUCTION APPARATUS, AND INDUCTION APPARATUS
A method for controlling an induction apparatus having an induction coil. In one implementation the induction apparatus includes a capacitor that is connected in parallel with the induction coil to form a parallel resonant circuit, and also includes a switch connected in series with the parallel resonant circuit, between the parallel resonant circuit and a reference voltage. According to one method, a digital test signal dependent on the voltage in a node disposed between the switch and the parallel resonant circuit is generated, the switch is closed for a predetermined closure time and then reopened at the end of the closure time. With the switch reopened, the test signal is evaluated for a predetermined waiting time in order to determine the presence or absence of a vessel on the induction coil.
An appliance having a drain pump with a motor adapted to be supplied with an alternating supply voltage. A controller is adapted to monitor a current value supplied to the motor and to control the frequency of the supply voltage among a plurality of predetermined frequencies when the drain pump is operated in a full drainage mode. A storage medium associated with the controller stores for each predetermined frequency a maximum current value, a minimum current value and an optimal current value. The controller may stores computer implemented instructions for (a) determining if the monitored current value is between the maximum current value and the minimum current value, (b) comparing the monitored current value with the optimal current value, and (c) adjusting the frequency of the alternating supply voltage among the plurality of predetermined frequencies to cause the monitored current to more closely match the optimal current value.
D06F 35/00 - Washing machines, apparatus, or methods not otherwise provided for
D06F 33/00 - Control of operations performed in washing machines or washer-dryers
B08B 3/12 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
A control panel for controlling the operation of hotplates situated on a cooking appliance. The control panel has a translucent plate that permits the location of operating elements to be visually displayed on a top surface thereof only when lighting elements associated with the operating elements are energized. The lighting elements are selectively energized and/or de-energized so that only the operating elements of a particular hotplate are visible on the top surface of the translucent plate while a user is in the process of selecting or otherwise altering an operating parameter of the particular hot plate.
A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports in an upper surface thereof. The gas outlet ports are in flow communication with at least one pilot flame burner. An adjustable fuel injector or at least two fuel injectors feed fuel to the burner providing for introduction of more than one fuel to the burner. Optionally, an oxygen detection system, manual fuel selection control valve, and/or temperature shut off control system may be incorporated into the dual fuel vent free heater.
Gas distributor unit for a cooking appliance, which comprises at least one gas burner, a distributor conduit fitted with at least one regulation tap to regulate the passage of a gas flow to the corresponding burner, and a safety valve to open or close the passage of the gas flow to the burners. The distributor conduit is connected to the safety valve, said safety valve comprising a valve body that includes an inlet conduit for the gas flow, an outlet conduit, and an intermediate conduit that connects the inlet conduit to the outlet conduit, an axial axis of said inlet conduit and an axial axis of said outlet conduit being arranged substantially parallel to each other and not coaxial. The safety valve comprises an electrovalve, housed in the valve body, which opens or closes the passage of the gas flow to the outlet conduit.
A multiple gas pilot burner assembly for a household heating appliance. The pilot burner includes an injector having a first conduit for receiving a flow of a first combustible fluid, a second conduit for receiving a flow of a second combustible fluid and a third conduit connected to and in fluid communication with the first and second conduits which is configured to receive the flow of the first combustible fluid from the first conduit or the flow of the second combustible fluid from the second conduit. A single nozzle at the outlet of the third conduit is provided for supplying a pilot flame. The assembly also includes a single flame igniter positioned to cause an ignition of the pilot flame at the nozzle and also a single thermocouple positioned to be heated by the pilot flame and to generate an electrical current when heated.
Gas cooking appliance comprising at least one burner (1), opening means (3) to allow or prevent the flow of gas towards the burner (1), regulation means (6) to regulate the gas flow towards the burner (1), and at least one actuator (4) associated to the burner (1). The user may open the gas flow towards a burner (1) by means of the actuator (4), which enables the opening means (3) to open said flow, and may also regulate said gas flow by means of the actuator (4), enabling the regulation means (6) to regulate it. The appliance (100) is designed to operate in a first operating mode in which a constant flame is provided to the burner (1), and a second operating mode in which an intermittent flame is provided to said burner (1).
A system and method for controlling the output power of a heat source. The system includes a user interface so that a user may select the power required from the heat source, a power supply, and a controller that receives a rectified signal having a work ratio that corresponds to a nominal voltage of an alternating voltage signal corresponding to a phase of a power supply. The controller is configured to control the output power of the heat source in accordance with the power selected by the user, and modifies, if necessary, the work cycle of a power signal linked to the heat source in accordance with the work ratio in order to compensate possible differences in the nominal voltage between different power supplier.
A system and method for controlling the output power of a heat source. The system includes a user interface so that a user may select the power required from the heat source, a power supply, and a controller that receives a rectified signal having a work ratio that corresponds to a nominal voltage of an alternating voltage signal corresponding to a phase of a power supply. The controller is configured to control the output power of the heat source in accordance with the power selected by the user, and modifies, if necessary, the work cycle of a power signal linked to the heat source in accordance with the work ratio in order to compensate possible differences in the nominal voltage between different power supplies.
A device and method for controlling a drainage pump of a washing machine. The drainage pump is powered by a synchronous motor that is connected to a mains voltage bus by a switch. During one or more stages of a washing program the switch is operated to apply in each half cycle of the mains voltage a delay time from the zero setting of the mains voltage to cause the motor to operate in a cut-wave mode.
Device (1) for distributing gas, for a domestic cooking apparatus, which includes a distribution pipe (2) and a number of rotary taps (3) integrated into the distribution pipe (2). Each tap (3) includes a tap body (4) and a conical, rotary member (5) inside the body (4), the intermediate part of the tap body (4a) that is involved in regulating the flow 'Q' being inserted in the distribution pipe. The intermediate part of the tap body (4a) comprises a passage opening (11) formed by means of a convergent-form continuous-groove contour (11a, 11b) for covering a specified angular path, and the conical member (5) comprises a passage opening (12) via which the flow 'Q' gains access to each tap (3) and which is formed by two passage-area portions (12a, 12b) that overlap with the continuous groove (11a, 11b) of the tap body (4), one flow after another being regulated by means of the continuous rotation of the conical member.
F16L 41/16 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe the branch pipe comprising fluid cut-off means
36.
Dual gas pressure regulator for a household appliance
Gas pressure regulator valve adapted to a household appliance for the supply of a flow of NG or LPG gas that comprises a valve body (11) with an inlet conduit (12), an outlet conduit (13) of the gas at a nominal pressure, a pressurised chamber (14) connecting both conduits through a regulation valve (39,40), a diaphragm (22) connected to the valve member (39), a closure cap (26) and means (26-29,19,23,35) for the adjusting of the nominal pressure for NG or LPG gas. The adjusting means include a prestressed adjusting screw (35) on the diaphragm (22), a guide means (28) of the rotation on the cap (26) and a stopper means of the rotation on the body (11). The pressure value is adjusted by the rotation of the cap between two positions.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
37.
Electronic valve for flow regulation on a cooking burner
patents
