SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). 0000007385 00000 n 0000010946 00000 n a housing with a discharge chamber, a crank chamber, an intake chamber and cylinder bores defined inside, pistons fitted in the respective cylinder bores. ECVDs can be clutch less or might have a conventional clutch. SECURITY AGREEMENT;ASSIGNOR:ALLIANCE LAUNDRY SYSTEMS LLC;REEL/FRAME:028002/0500, Free format text: ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME;ASSIGNOR:SANDEN CORPORATION;REEL/FRAME:053545/0524, Free format text: trailer <<1634c9c8aa0111d9b2cb000d93c893f8>]>> startxref 0 %%EOF 11 0 obj<>stream The displacement control system of the variable displacement compressor according to claim, In the displacement control system of the variable displacement compressor according to claim. Join MACS as a member using this QR code! CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED AT REEL: 038489 FRAME: 0677. AS ADMINISTRATIVE AGENT, 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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES, REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS, Arrangement or mounting of control or safety devices, Arrangement or mounting of control or safety devices for compression type machines, plants or systems, ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES, Heating, cooling or ventilating [HVAC] devices, Control means therefor for increasing the efficiency of a vehicle refrigeration cycle, Control means therefor for improving a change in operation duty of a compressor in a vehicle, Control means therefor for improving the stop or idling operation of the engine, POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS, Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders, Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis, Control of pumps with stationary cylinders, Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block, Cooling devices information from a variable is obtained, Cooling devices information from a variable is obtained related to pressure, Cooling devices information from a variable is obtained related to pressure of the refrigerant at a compressing unit, Cooling devices information from a variable is obtained related to temperature, Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit, Cooling devices information from a variable is obtained related to temperature of the refrigerant at an evaporating unit, Cooling devices information from a variable is obtained related to the operation of the vehicle, Cooling devices output of a control signal, Cooling devices output of a control signal related to a compressing unit, Cooling devices output of a control signal related to a compressing unit to control the volume of a compressor, Compression machines, plants or systems characterised by the refrigerant being carbon dioxide, Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure, Compressor control controlling swash plate angles, Sensing or detecting of parameters; Sensors therefor, Temperatures of an evaporator of the fluid cooled by the evaporator, Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet, Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet, Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point, Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant, Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide, Displacement control system for variable displacement compressor, ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAGUCHI, YUKIHIKO;OCHIAI, YOSHIHIRO;REEL/FRAME:023124/0380, BANK OF AMERICA, N.A., AS AGENT, CALIFORNIA, SECURITY AGREEMENT;ASSIGNOR:ALLIANCE LAUNDRY SYSTEMS LLC;REEL/FRAME:025311/0911, RELEASE BY SECURED PARTY;ASSIGNOR:BANK OF AMERICA, N.A. Further, when a diaphragm is used to sense the intake pressure in place of the bellows, reduction in area of a pressure-sensing surface of the diaphragm entails reduction in displacement of the diaphragm, thus reduction in stroke of the valve, in order to ensure sufficient life of the diaphragm. That means, whenever the compressor is turning the pistons are always moving through the same travel, compressing the gas. 0000001936 00000 n 0000079777 00000 n 0000053250 00000 n The idling mode contributes to stabilizing the engine revolving speed when the vehicle is in the idling state. But opting out of some of these cookies may affect your browsing experience. 0000003786 00000 n Contact us when you are considering making a purchase. The compression system that uses swash plates to convert rotational motion into reciprocating piston motion is used for PX series compressors. CORRECTIVE ASSIGNMENT TO CORRECT THE TYPOGRAPHICAL ERRORS IN PATENT NOS. The controllable upper limit of intake pressure is between 0.3 and 0.4 MPa. 0000007598 00000 n 0000080865 00000 n Please see picture #4. This allows the displacement control system A, B to fully enjoy the benefit of the widened range of control of the intake pressure Ps. 0000014418 00000 n In this sense, the feedback control of displacement by sensing the intake pressure includes a fail safe function. In this main routine, first, initial conditions are set immediately after start (S, Then, whether or not the air conditioning switch (A/C) of the automotive air conditioning system is in ON position is determined (S, Then the read discharge pressure Pd and a preset upper limit Pdset, After executing the torque control routine S, Then, whether or not the elapsed time ta is less than or equal to a predetermined time ta, If the elapsed time ta exceeds the predetermined time ta, Then, whether or not the engine revolving speed Nc is less than or equal to a predetermined revolving speed N, When the elapsed time tb exceeds the time tb, Incidentally, when the air conditioning switch is put in OFF position, so that the result of determination at S, As seen from the above, the displacement control system B according to the second embodiment can select and execute one of the air conditioning control routine S, Of the three routines, the air conditioning control routine S, Calculating the torque Tr on the compressor, Then, a differential Tr between the target torque Trset and the calculated torque Tr is calculated (S, Then, the target intake pressure Psset calculated at S, Then, the control current I to be supplied to the solenoid, If, on the other hand, it is determined at S, In the above-described torque control routine S, If, for example, the automotive air conditioning system is switched on or the vehicle is in an idling state or in an accelerating state, the displacement control system B can select and execute the torque control routine S, More specifically, in the switch-on mode which is selected when the air conditioning system is switched on, the target toque Trset is set to a switch-on initial target torque Trs, It is to be noted that the post-switch-on target torque Trs, The switch-on mode, which regulates the torque Tr when the compressor, In the idling mode selected when the vehicle is in the idling state, the target torque Trset is set to an idling target torque Trs. Sanden variable compressors contribute to lower fuel consumption, CO2 emission reduction and drivers' comfort. The reduction in size of the diaphragm is therefore restricted by this requirement. 0000003354 00000 n PXE is a swash plate type variable displacement compressor without clutch assembly for power transmission. in said first setting mode, the target pressure setting means sets said target for pressure to cause the temperature of air immediately after passing across the evaporator, detected by said evaporator-outlet air temperature detection means to approach said target for temperature. 0000043479 00000 n Coolant Heaters, Pipes for ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAGUCHI, YUKIHIKO;OCHIAI, YOSHIHIRO;REEL/FRAME:023124/0380, Owner name: Type Compressors, Fixed Displacement Type AS ADMINISTRATIVE AGENT;REEL/FRAME:054366/0138, A displacement control system (A) of a variable displacement compressor comprises a target pressure setting means (. The present invention can be modified in various ways other than the second embodiment. By the reciprocating motion, each piston performs a discharge process of drawing an operating fluid from the intake chamber into its own cylinder bore, compressing the drawn-in operating fluid and discharging the compressed operating fluid to the discharge chamber. Earlier models tended to be clutch less, whereas in recent years, there has been a move toward using clutches. 0000011329 00000 n 0000045037 00000 n Thus, the displacement control system applied to the automotive air conditioning system does not lose control over displacement, even when the heat load on the refrigeration cycle is great. 0000020817 00000 n CORRECTIVE ASSIGNMENT TO CORRECT THE TYPOGRAPHICAL ERRORS IN PATENT NOS. said one or more setting modes include a second setting mode designed to set a target for variable-displacement-compressor driving load, and set said target for pressure to cause the variable-displacement-compressor driving load to approach said target for driving load. Check back in next week and we will continue our exploration of ECVDs. Further, in this displacement control system, the range of control of low-pressure or control pressure slides depending on the value of the high-pressure, which means that the low-pressure or the control pressure is controllable over a wide range. SDC is an external variable displacement compressor of which discharge capacity is controlled in response to electric signals which are generated by the vehicle according to the refrigerant pressure condition which is also detected by the vehicle. In such case, in order to cause the differential pressure to approach the target, the control device of Patent Document 1 operates to increase the displacement. For example, driving the variable displacement compressor is a great load for the engine of the vehicle. Thus, only with a simple structure, the displacement is prevented from increasing to its maximum when the refrigerant quantity is insufficient, so that the compressor is protected from damage. 0000020348 00000 n This widened range of control based on smaller sealing surface area and the fact that the range of control of target intake pressure Psset slides depending on the discharge pressure allow the target intake pressure Psset to be controlled over a greatly widened range. The feedback control described in Patent Documents 2 and 3, however, requires that the displacement control valve include a sensing member for sensing the intake pressure. Thus, although the displacement control valve. The discharge capacity (amount of compression) is controlled by changing the swash plate angle in response to electrical signals from the vehicle. The one on the right has external bridges.
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