Schiebscheibenverdichter mit veränderlicher Verdrängung

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITY CONTROL MECHANISM

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

VARIABLE DISPLACEMENT SLANT PLATE TYPE COMPRESSOR WITH THROTTLING MEANS LINKING THE CRANKCASE AND DISCHARGE CHAMBER A slant plate type compressor including a compressor housing having a cylinder block is disclosed. A plurality of cylinders are formed around the periphery of the cylinder block and a piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. A crank chamber is formed between the cylinder block and a front end plate of the compressor housing. The drive mechanism includes a drive shaft rotatably supported in the compressor housing, a rotor coupled to the drive shaft and rotatable therewith, and a coupling mechanism for drivingly coupling the rotor to the pistons such that they rotary motion of the rotor is converted into reciprocating motion of the pistons. The coupling mechanism includes a plate having a surface disposed at a slant angle relative to the drive shaft. The slant angle changes in response to a change in pressure in the crank ...

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITYSLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITY CONTROL MECHANISM CONTROL MECHANISM

A variable capacity type slant plate type compressor including a crank chamber, a suction chamber and a discharge chamber is disclosed. The crank chamber is linked by a first communication path to the suction chamber, and is linked by a second communication path to the discharge chamber. A first valve control mechanism is disposed within the first communication path and second valve control mechanism is disposed within the second communication path. Fluid communication between the crank and suctionchambers is controlled by the first valve control mechanism so that the suction chamber pressure is maintained at one predetermined constant value while fluid communication between the crank and discharge chambers is continuously closed. Fluid communication between the crank and discharge chambers is opened by the second valve control mechanism when the predetermined constant value of the suction chamber pressure must be increased. However, in the latter condition, fluid communication between ...

Displacement Controlling Structure for Clutchless Variable Displacement Compressor

Slant plate type compressor with variable displacement mechanism

SAFETY DEVICE FOR COMPRESSOR OF AIR-CONDITIONING

SAFETY DEVICE FOR COMPRESSOR OF AIR-CONDITIONING

A safety device limits the pressure in an axial-piston compressor with variable piston displacement. The compressor has as wobble plate or swash plate whose tilt angle can be variably controlled by the pressure differential between the high pressure in the discharge pressure zone and the pressure in the piston-drive chamber. The safety device consists of a valve arranged in a connector channel between the discharge pressure zone and the pressure zone of the piston-drive chamber. When the discharge pressure exceeds a given pressure limit, the safety device responds by allowing an increased flow of pressure medium from the discharge pressure zone to the piston-drive chamber. The influx of pressure medium into the piston-drive chamber causes a reduction of the tilt angle of the swash plate or wobble plate.

SAFETY DEVICE FOR COMPRESSOR OF AIR-CONDITIONING

Dispositif de s ecurit e pour la limitation de la pression d'un compresseur à course variable ou à refoulement variable, dans lequel l'inclinaison du disque oscillant ou du disque inclin e est vari ee au moins par la diff erence entre la haute pression dans la zone de la pression de d echarge (11) et la pression dans le compartiment d'entraînement (16), et eventuellement par la diff erence entre la pression dans le compartiment d'entraînement (16) et la pression d'aspiration, avec une liaison d'arriv ee entre la zone de la pression de d echarge et la zone de la pression du compartiment d'entraînement, avec un dispositif de vanne (50) qui est plac e dans la liaison d'arriv ee et eventuellement avec un el ement d' etranglement de dispositif de d erivation. Safety device for limiting the pressure of a compressor with variable stroke or variable discharge, in which the inclination of the oscillating disc or of the inclined disc is varied at least by the difference between the high pressure in the area of the discharge pressure (11) and the pressure in the drive compartment (16), and possibly by the difference between the pressure in the drive compartment (16) and the suction pressure, with an inlet connection between the relief pressure zone and the pressure zone of the drive compartment, with a valve device (50) which is placed in the inlet connection and possibly with a bypass device throttle element.

DEVICE OF VALVES AND FITTINGS

Dispositif de robinetterie am elior e pour compresseurs à disque à course r eglable. Dispositif de robinetterie pour la r egulation de la modification de la course de compresseurs à disque à course r eglable, comme des compresseurs à disque en nutation ou des compresseurs à disque inclin e à course variable, dans lequel pour modifier la course on r egule la pression dans l'espace moteur, dans lequel une première liaison (2) de la zone sous haute pression (3) à la zone (4) sous pression de l'espace moteur et eventuellement une seconde liaison (5) de la zone (4) sous pression de l'espace moteur à la zone sous pression d'aspiration (6) peuvent être influenc ees, caract eris e par le fait que la première liaison (2) peut être influenc ee par un premier el ement de robinetterie (8) et la deuxième liaison (5), par un second el ement de robinetterie (11), le premier el ement de robinetterie (8) et/ ou le second el ement de robinetterie (11) etant essentiellement exempts de fuite à l' etat ferm e. L'invention s'applique en particulier à la r egulation du d ebit des compresseurs à disque en nutation et à disque inclin e. Improved valves for disc compressors with adjustable stroke. Valve device for regulating the modification of the stroke of adjustable stroke disc compressors, such as nutating disc compressors or inclined disc compressors with variable stroke, in which to modify the stroke the stroke is regulated. pressure in the engine space, in which a first connection (2) from the high pressure zone (3) to the pressurized zone (4) of the engine space and possibly a second connection (5) from the zone (4) ) under pressure from the engine space to the suction pressure zone (6) can be influenced, characterized in that the first connection (2) can be influenced by a first valve element (8) ) and the second connection (5), by a second valve element (11), the first valve element (8) and / or the second valve element (11) being essentially free of ...

Slant plate type compressor with variable displacement mechanism

A slant plate type compressor including a compressor housing having a cylinder block is disclosed. A plurality of cylinders are formed around the periphery of the cylinder block and a piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. A crank chamber is formed between the cylinder block and a front end plate of the compressor housing. The drive mechanism includes a drive shaft rotatably supported in the compressor housing, a rotor coupled to the drive shaft and rotatable therewith, and a coupling mechanism for drivingly coupling the rotor to the pistons such that they rotary motion of the rotor is converted into reciprocating motion of the pistons. The coupling mechanism includes a plate having a surface disposed at a slant angle relative to the drive shaft. The slant angle changes in response to a change in pressure in the crank chamber to change the capacity of the compressor. The compressor housing includes a rear end plate including suction ...

Vehicular refrigerating cycle with a bypass line

A vehicular refrigerating cycle with a by-pass line is provided, whereby even in an environment of extremely low temperature with the refrigerating cycle left at rest after being operated in cooling mode, refrigerant accumulated in a condenser can be driven out of the condenser to provide subsequent heating functions by an evaporator in a prescribed manner. A capacity control can be set such that the capacity of a compressor only is allowed to start to decrease from a maximum capacity when a compressor suction pressure ps has dropped to a value of 2 atmospheres (absolute pressure) or less in a state in which refrigerant flows through a condenser without passing through a bypass line.

SAFETY DEVICE FOR CLIMATIC COMPRESSOR

VARIABLE DISPLACEMENT TYPE COMPRESSOR

PURPOSE: To improve workability and oil returning performance of an air supply passage communicating a delivery chamber and a crank chamber with each other. CONSTITUTION: Since an air supply passage 21 is opened to communicate a delivery chamber 3b and a crank chamber 2a with each other by passing penetratingly through a cylinder block 1 and an orifice part 21a of the air supply passage 21 is formed at least in one of a valve plate 4 and a delivery valve element 22, working accuracy and productivity of the air supply passage 21 can be improved. COPYRIGHT: (C)1994,JPO&Japio ...

Schiefscheibenverdichter mit Vorrichtung zur Hubregelung.

Ventilvorrichtung

SICHERHEITSEINRICHTUNG FÜR KLIMAKOMPRESSOR

DISPLACEMENT CONTROLLING STRUCTURE FOR CLUTCHLESS VARIABLE DISPLACEMENT COMPRESSOR

A variable displacement compressor which has a suction chamber, a discharge chamber, and a crank chamber. The displacement of the compressor is controlled by supplying refrigerant to the crank chamber from the discharge chamber via a pressurizing passage and releasing the gas into the suction chamber via a pressure releasing passage. An increase in the pressure in the crank chamber decreases the displacement, and a decrease in the pressure in the crank chamber increases the displacement. A displacement controlling structure of the compressor includes an electromagnetic valve which alters the size of an area of the pressurizing passage. A computer controls the electromagnetic valve in accordance with commands to alter the displacement. The computer enlarges the opened area of the pressurizing passage by controlling the electromagnetic valve in response to commands to reduce the displacement.

DEVICE OF VALVES AND FITTINGS

Clutchless piston type variable displacement compressor

A compressor having an internal refrigerant gas passage selectively connected to and disconnected from an external refrigerant circuit separately provided from the compressor is described. The compressor has a plurality of pistons reciprocable in a plurality of cylinder bores in a housing for compressing gas supplied from the external refrigerant circuit to the internal refrigerant gas passage. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with inclining motion with respect to the drive shaft. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. The disconnecting device disconnects the internal refrigerant gas passage from the external refrigerant circuit when the swash plate is at the minimum inclined angle. The internal refrigerant gas passage includes a first passage which connects a crank chamber and a suction chamber to deliver the refrigerant gas from the crank chamber to ...

Slant plate type compressor with variable capacity control mechanism

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITY CONTROL MECHANISM

A slant plate type compressor having a capacity or displacement adjusting mechanism includes a housing for a cylinder block provided with a plurality of cylin-ders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism which includes a slant plate having a surface with an adjustable incline angle. The incline angle of the slant plate, and thus the capacity of the compressor, is controlled according to the pressure differential between the crank chamber and the suction chamber. The pressure in either the crank chamber or the suction chamber is controlled by an externally controlled valve mechanism which is disposed in a passageway linking the crank chamber and the suc-tion chamber. An internally controlled safety valve device prevents an abnormal pressure differential between the crank and suction chambers. The internally con-trolled safety valve device is provided within the externally controlled valve mecha-nism, thereby obtaining ...

Slant plate type compressor with variable displacement mechanism

A slant plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a drive mechanism having a drive shaft rotatably supported in a compressor housing and a coupling mechanism for drivingly coupling the drive shaft to pistons such that rotary motion of the drive shaft is converted into reciprocating motion of the pistons. The coupling mechanism includes a slant plate having an inclined surface. The slant angle changes in response to a change in pressure in the crank chamber and, thus, changes the capacity of the compressor. The drive shaft includes an inner end portion which has a diameter that is smaller than a diameter of the remainder of the drive shaft. A bias spring which has an outer diameter that is greater than a diameter of the remainder of the drive shaft is resiliently mounted on the inner end portion of the drive shaft between the slant plate and the cylinder block. The bias spring restores the slant plate back to its maximum slant angle ...

Method for controlling a refrigerating cycle and a refrigerating cycle

A vehicular refrigerating cycle with a by-pass line 55 is provided, whereby even in an environment of extremely low temperature with the refrigerating cycle left at rest after being operated in cooling mode, refrigerant accumulated in a condenser can be driven out of said condenser 52 to provide subsequent heating functions by an evaporator 54 in a prescribed manner. Capacity control means 20 can be set such that the capacity of a compressor 10 only is allowed to start to decrease from a maximum capacity when a compressor suction pressure Ps has dropped to a value of 2 atmospheres (absolute pressure) or less in a state in which refrigerant flows through condenser 52 without passing through by-pass line 55.

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

Control valve for variable displacement compressor

A control valve according to one embodiment includes a shaft that transmits the solenoidal force to a valve element. A solenoid includes a bottomed sleeve into which the pressure of refrigerant is introduced, a core secured coaxially to the sleeve, a plunger, contained in the sleeve on its bottom side, which is displaceable integrally with the shaft in a direction of axis line, a first spring that applies the biasing force in a valve opening direction to the shaft, a second spring that applies the biasing force in a valve closing direction to the plunger, and a shaft support member, which is press-fitted such that the shaft support member is secured to an inner wall of the sleeve near its bottom portion. The second spring is set between the shaft support member and the plunger.

SCHIEFSCHEIBENVERDICHTER MIT VORRICHTUNG ZUR HUBVERAENDERUNG.

Verfahren zum Kontrollieren eines Kältekreislaufes und Kältekreislauf

Controllable displacement-type compressor

A compressor has a wobble plate 15 that can tilt between maximum and minimum angles relative to the driveshaft 9, depending on the difference in pressures in a crank chamber 2 and a suction chamber 3. There is a solenoid valve 32 in a pressure line 14 connecting the chambers, opening or closing according to instructions from an external computerC. These instructions are based on the compressor operating conditions, so that the valve adjusts the pressure in the crank chamber. The wobble plate is inclined to the maximum angle when the valve is open to relieve the pressure in the pipeline. It is at the minimum angle when the valve is closed. There is a separator between the external circuit and the suction chamber.

VARIABLE CAPACITY WOBBLE PLATE COMPRESSOR

Safety device for an air-conditioning compressor

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITY CONTROL MECHANISM

A slant plate type compressor having a capacity or displacement adjusting mechanism includes a housing for a cylinder block provided with a plurality of cylin-ders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism which includes a slant plate having a surface with an adjustable incline angle. The incline angle of the slant plate, and thus the capacity of the compressor, is controlled according to the pressure differential between the crank chamber and the suction chamber. The pressure in either the crank chamber or the suction chamber is controlled by an externally controlled valve mechanism which is disposed in a passageway linking the crank chamber and the suc-tion chamber. An internally controlled safety valve device prevents an abnormal pressure differential between the crank and suction chambers. The internally con-trolled safety valve device is provided within the externally controlled valve mecha-nism, thereby obtaining an easily manufactured slant plate type compressor having a capacity adjusting mechanism with a safety valve device.

SAFETY DEVICE FOR COMPRESSOR OF AIR-CONDITIONING

Dispositif de sécurité pour limiter la pression d'un compresseur à course variable dans lequel on fait varier l'inclinaison du disque en nutation par la différence entre haute pression dans la zone sous pression de sortie (31) et pression de l'espace moteur, comportant, entre zone sous pression de sortie (31) et zone sous pression de l'espace moteur (33), une liaison avec un robinet à soupape de limitation de la pression (30) et comportant un autre robinet à soupape de limitation de la pression (36) qui évacue le fluide sous pression dans l'environnement (37) en cas de dépassement de la pression dans l'espace moteur (33), caractérisé par le fait que des dispositifs de sécurité pour la zone sous haute pression (31), pour la zone sous pression de l'espace moteur (33) et pour la zone sous pression d'aspiration (34) sont fonctionnellement couplés les uns aux autres. L'invention s'applique en particulier au compresseur d'une installation de climatisation d'un véhicule à moteur.

COMPRESSOR FOR SYSTEM OF AIR CONDITIONING Of COCKPIT OF VEHICLE

Un compresseur ayant un séparateur d'huile au niveau d'une partie d'enveloppe de son boîtier (11, 13) est décrit. Le séparateur d'huile est composé d'une partie avant (61) construite en une seule pièce avec un boîtier avant (11) et une partie arrière (62) construite en une seule pièce avec un bloc de culasse (12). Le séparateur d'huile possède une chambre de séparation d'huile (63) formée entre les parties avant et arrière (61 et 62). Le séparateur d'huile est formé en une seule pièce, des plaques (67 et 68) formant passage de séparation d'huile, qui divisent partiellement la chambre de séparation (63) pour créer un passage (66) en forme de serpentin qui s'étend d'un orifice d'entrée (64a) à un orifice de refoulement (65) de la chambre de séparation (63). Le passage (66) est en communication avec la chambre de bielle (15) par l'intermédiaire d'un passage de retour d'huile (69) en un endroit adjacent à son orifice de refoulement.par. A compressor having an oil separator at a casing portion of its housing (11, 13) is described. The oil separator is composed of a front part (61) built in one piece with a front housing (11) and a rear part (62) built in one piece with a cylinder head block (12). The oil separator has an oil separation chamber (63) formed between the front and rear portions (61 and 62). The oil separator is formed as one piece, of the oil separation passage plates (67 and 68), which partially divide the separation chamber (63) to create a coil-shaped passage (66) which s 'extends from an inlet port (64a) to a discharge port (65) of the separation chamber (63). The passage (66) is in communication with the connecting rod chamber (15) via an oil return passage (69) at a location adjacent to its discharge port.

Variable displacement swash-plate type compressor

Slant plate type compressor with variable displacement mechanism

VARIABLE CAPACITY OSCILLATING COMPRESSOR

PURPOSE: To reduce the cost in independently installing a differential pressure regulating valve by adding a function as a differential pressure regulating valve adapted to operate in response to a pressure difference between a crank chamber and an intake chamber to a pressure control valve for adjusting the pressure in the crank chamber to vary the discharge capacity to be integral therewith. CONSTITUTION: A pressure control valve 23 adapted to control the pressure in a crank chamber to change an angle of inclination of an oscillating plate includes an inlet side pressure chamber 24 where gas in the crank chamber is introduced through a communicating path 22 and an outlet side pressure chamber 26 communicating with an intake chamber through a communicating path 25. The pressure in the intake chamber is received by a diaphragm 233 so that the the pressure control point of the intake chamber can be freely controlled by controlling the amount of electricity applied to an electromagnetic coil ...

TAUMELSCHEIBENKOMPRESSOR MIT VARIABLER VERDRAENGUNG

Verstellkompressor

Sicherheitseinrichtung für Klimakompressor

Schiefscheibenverdichter mit einer Vorrichtung zur Hubveränderung.

Safety device for air conditioning compressor has safety units for high pressure, drive chamber pressure, and suction pressure zones all in functional connection with each other

Sicherheitseinrichtung für die Druckbegrenzung eines hubvariablen bzw. verdrängungsvariablen Kompressors, bei dem die Neigung der Taumelscheibe bzw. der Schrägscheibe zumindest durch die Differenz zwischen Hochdruck im Entladedruckbereich und Triebraumdruck variiert wird, gegebenenfalls durch die Differenz zwischen Triebraumdruck und Saugdruck, mit einer Zufuhrverbindung zwischen Entladedruckbereich und Triebraumdruck, mit einer Ventilvorrichtung, welche in der Zufuhrverbindung angeordnet ist, und gegebenenfalls einer zusätzlichen Verbindung vom Triebraumdruckbereich zum Saugraumdruckbereich, und mit einem Druckbegrenzungsventil, welches bei Überschreitung eines Hochdruckes im Hochdruckbereich Druckmedium in den Triebraum ablässt und mit einem weiteren Druckbegrenzungsventil oder mit einer Berstscheibe, die bei Drucküberschreitung im Triebraum Druckmedium vom Triebraum in die Umgebung ablässt.

VARIABLE CAPACITY WOBBLE PLATE COMPRESSOR

A variable capacity wobble plate compressor includes a drive shaft arranged in a housing, bearings arranged in a portion of a cylinder block of the housing toward a crankcase within the housing for rotatably supporting the drive shaft, and a fixing member inserted into a portion of the cylinder block toward a discharge pressure chamber for fixing discharge valves in place. A high pressure-introducing passage is formed through the fixing member and extends from the discharge pressure chamber to the bearings. The high pressure-introducing passage introduces compression medium having high pressure from the discharge pressure chamber to the bearings so that the compression medium having high pressure leaks through the bearings into the crankcase.

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT

Slant Plate Type Compressor with Variable Capacity Control Mechanism

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

A variable capacity type slant plate compressor including a crank chamber a suction chamber and a discharge chamber is disclosed. The crank chamber is linked by a first communication path to the suction chamber, and is linked by a second communi-cation path to the discharge chamber. A first valve control mechanism is disposed within the first communication path. A second valve control mechanism is disposed within the second communication path. The first valve control mechanism controls the opening and closing of the first communication path so that the suction chamber pressure is maintained at a predetermined constant value. The second communication path is compulsorily opened by operation of the second valve control mechanism in response to an external signal so zas to compulsorily minimize the capacity of the compressor. A throttling device is disposed within the second communication path between the discharge chamber and the second valve control mechanism so that thecapacity of the compressor ...

COMPRESSOR FOR SYSTEM OF AIR CONDITIONING Of COCKPIT OF VEHICLE

Variable capacity swash-plate compressor with electromagnetic clutch

In a swash-plate compressor, pistons are slidably received in cylinder bores. A drive shaft is extended through a crank chamber, and is rotated through an electromagnetic clutch means associated therewith. A conversion mechanism is provided on the shaft for converting a rotational movement of the shaft into a reciprocation of each piston in the corresponding cylinder bore such that a suction stroke and a discharge stroke are alternately executed therein. A fluid is introduced from a suction chamber into the bore during the suction stroke, and during the compression stroke, the fluid is compressed in and discharged from the bore into a discharge chamber. The conversion mechanism is constituted such that a stroke length is shortened in response to an increase of a pressure in the crank chamber, and vice versa. A first passage communicates the crank with the suction chamber, and a second passage communicates the crank chamber with the discharge chamber. A control valve is provided in one of ...

Slant plate type compressor with variable capacity control mechanism

A variable capacity type slant plate type compressor (10) including a crank chamber (22) and a suction chamber (241) and a discbarge chamber (251) is disclosed. The crank chamber (22) is linked by a first communication path to the suction chamber, and is linked by a second communication path to the discharge chamber. A first valve control mechanism (400) is disposed within the first communication path. A second valve control mechanism is disposed within the second communication path. A fluid communication between the crank and suction chambers is controlled by the first valve control mechanism (400) so as to maintain the suction chamber pressure at one predetermined constant value while a fluid communication between the crank (22) and discharge chambers (251) is continuously closed. A fluid communication between the crank and discharge chambers is opened by the second valve control mechanism when the predetermined constant value of the suction chamber pressure is required to be changed ...

Variable-displacement swash plate compressor

Compressor for motor vehicle air conditioning system

The compressor has an oil separator in part of the housing (11,13) of the compressor. The oil separator has a front part (61) constructed in a single piece with a front case (11) and a rear part (62) formed as a single piece with the case of the compressor. The oil separation chamber is between the front and rear parts. Plates (67,68) are used to form the oil separation passage, partly dividing the oil separation chamber to create a passage (66) with a serpentine path which extends from the inlet passage (64a) to the outlet passage (65) of the separation chamber. The passage is in communication with the crank chamber (15) through an oil return passage (69).

Control device for variable displacement compressor

A controller (37) for a compressor selects a control procedure from a normal displacement control procedure and a temporary control procedure based on information detected by a detector. When the normal displacement control procedure is selected, the controller sends a current, the value of which is based on the detected information, to an electromagnetic actuator (42). When the temporary displacement control procedure is selected, the controller sends a current having a specific value to the actuator to maximize a target compressor suction pressure. When switching from the temporary displacement control procedure to the normal displacement control procedure, the controller changes the value of the current supplied to the electromagnetic actuator according to a pattern, which is determined based on the detected information, over a predetermined period. The controller determines the pattern of the current variation during the predetermined period based on the suction pressure during or at ...

Control device for variable displacement compressor

A controller (37) for a compressor selects a control procedure from a normal displacement control procedure and a temporary control procedure based on information detected by a detector. When the normal displacement control procedure is selected, the controller sends a current, the value of which is based on the detected information, to an electromagnetic actuator (42). When the temporary displacement control procedure is selected, the controller sends a current having a specific value to the actuator to maximize a target compressor suction pressure. When switching from the temporary displacement control procedure to the normal displacement control procedure, the controller changes the value of the current supplied to the electromagnetic actuator according to a pattern, which is determined based on the detected information, over a predetermined period. The controller determines the pattern of the current variation during the predetermined period based on the suction pressure during or at ...

VARIABLE CAPACITY WOBBLE PLATE COMPRESSOR

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

Safety device for an air-conditioning compressor

SLANT PLATE TYPE COMPRESSOR WITH MODIFIED LOW CAPACITY BIAS SPRING

A slant plate type compressor with a variable displacement mechanism is disclosed. The compressor includes a drive mechanism having a drive shaft rotatably supported in a compressor housing and a coupling mechanism for drivingly coupling the drive shaft to pistons such that rotary motion of the drive shaft is converted into recipro-cating motion of the pistons. The coupling mechanism includes a slant plate having an inclined surface. The slant angle changes in response to a change in pressure in the crank chamber and, thus, changes the capacity of the compressor. The drive shaft includes an inner end portion which has a diameter that is smaller than a diame-ter of the remainder of the drive shaft. A bias spring which has an outer diameter that is greater than a diameter of the remainder of the drive shaft is resiliently mounted on the inner end portion of the drive shaft between the slant plate and the cylinder block. The bias spring restores the slant plate back to its maximum slant angle when the slant angle is decreased below a predetermined angle without the bias spring interfering with the free pivoting motion of the slant plate between various inclination angles. Thereby, the impact forces which act on the internal component parts of the compressor when the com-pressor is started can be reduced, while at the same time the bias spring still can sufficiently urge the slant plate toward its maximum slant angle if the slant angle decreases below the predetermined slant angle.

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

RECIPROCATING COMPRESSOR

PROBLEM TO BE SOLVED: To improve the durability of a thrust bearing and reduce the power loss by regulating the pressure of a crank chamber according to the sliding quantity of a drive shaft, and controlling the relation of the pressure of a cylinder bore with the pressure of the crank chamber so as to keep the average value of the thrust fluctuating load at zero. SOLUTION: In a single head reciprocating fixed displacement type compressor, an axially forward thrust fluctuating load acts on a drive shaft 16 through a piston 35 and a swash plate 31 according to the intermittent compressing motion of coolant gas, and the load is received by a thrust bearing 32. On the other hand, the blowby from a cylinder bore 33 or a high-pressure coolant gas passed through feed passages 18, 12a, 44 is supplied to a crank chamber 15, and its pressure works an axially backward thrust load to the drive shaft 16. The relation of the pressure of the cylinder bore 33 with the pressure of the crank chamber 15 ...

Schiefscheibenverdichter mit einer Vorrichtung zur Hubveränderung.

Safety device for air conditioning compressor consists of pressure limitation valve unit to increase pressure medium flow from discharge pressure zone into driving chamber

The compressor has a swash plate/wobble plate, with tilt varied by the pressure differential between the discharge pressure zone (11) and the driving chamber (16). A supply connection between the two has a valve unit and a bypass throttle. When a set max. relief pressure is exceeded, the valve unit opens the connection between discharge pressure zone and driving chamber, and increases its size if required. This increases pressure medium flow from discharge pressure zone to driving chamber, and reduces the stroke of the swash plate/wobble plate.

Valve device

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE CAPACITY CONTROL MECHANISM

Regelventil für einen Verdichter variabler Verdrängung

Slant plate type compressor with variable displacement mechanism

Verdichter variabler Verdrängung

VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

Compressor

Schiebscheibenverdichter mit veränderlicher Verdrängung

Slant plate type compressor with variable displacement mechanism

SLANT PLATE TYPE COMPRESSOR WITH VARIABLE DISPLACEMENT MECHANISM

Variable displacement piston compressor for vehicle air conditioning system

The compressor incorporates a swashplate (15). It has a control valve (30) which selectively opens and closes the first channel (29,32). A decoupling arrangement (21) is placed downstream to a point at which the control valve determines the pressure in the internal cooling gas channel (26). The internal cooling gas channel also has a second channel (44) for the connection of the outlet chamber (3b) with the crank chamber (2a) for feeding cooling gas from the outlet chamber to the crank chamber. A circulation channel which encompasses the first and second channels is formed on decoupling the external cooling circuit (45) from the internal cooling gas channel.

Taumelscheibenkompressor

Variable capacity wobble plate compressor

A variable capacity wobble plate compressor includes a drive shaft arranged in a housing, bearings arranged in a portion of a cylinder block of the housing toward a crankcase within the housing for rotatably supporting the drive shaft, and a fixing member inserted into a portion of the cylinder block toward a discharge pressure chamber for fixing discharge valves in place. A high pressure-introducing passage is formed through the fixing member and extends from the discharge pressure chamber to the bearings. The high pressure-introducing passage introduces compression medium having high pressure from the discharge pressure chamber to the bearings so that the compression medium having high pressure leaks through the bearings into the crankcase.

Displacement controlling structure for clutchless variable displacement compressor

Variable displacement swash-plate type compressor

A variable displacement swash-plate type compressor suitable for use as a refrigerant compressor of an automotive air conditioner has a cylinder block (5,6) having a plurality of cylinder bores (64) each slidably receiving a double-headed piston (7), a shaft (1) driven by an automotive engine, a swash plate (10) tiltably mounted on the shaft for rotation therewith to reciprocatorily move the pistons, and a spool (30) for moving the swash plate axially of the shaft and changing the angle of tilt of the swash plate. The swash plate and the shaft are connected in such a manner that, when the swash plate is axially moved while changing its tilting angle, the position of stroke end of each piston is changed only in a working chamber (50) on one end of the piston, whereas no change in the position of the stroke end occurs in the other working chamber (60) on the other end of the piston. ...

Hubsteuervorrichtung für einen Kolbenverdichter mit variabelem Hub ohne Kupplung

Schiebscheibenverdichter mit veränderlicher Verdrängung

Clutch-less variable capacity type compressor capacity control structures

본 발명의 목적은 클러치레스 압축기의 간소하고 또한 낮은 가격의 용량 제어 구조를 제공하는 것으로서, 토출실(3-2)과 크랭크실(2-1)을 접속하는 압력 공급 통로(31)는 전자 밸브(20)에 의해서 개폐된다. 토출실(3-2)과 크랭크실(2-1)과는 압력 공급 통로(31)에서 접속되어 있다 전자 밸브(20)의 솔레노이드(32)는 구동 회로(55)를 거쳐서 제어 컴퓨터(C 1 )의 여소자 제어를 받는다. 제어 컴퓨터(C 1 )는 온도 센서(39)에서 얻어지는 검출 온도 정보에 의거해서 솔레노이드(32)에 대한 입력 전류값을 제어한다. 제어 컴퓨터(C 1 )는 온도 센서(39)에서 얻어지는 검출 온도에 의거해서 입력 전류값을 구동 회로(55)에 지령한다. 구동 회로(55)는 지령된 입력 전류값을 솔레노이드(32)에 대해서 출력한다. An object of the present invention is to provide a simple and low-cost capacity control structure of a clutchless compressor, in which a pressure supply passage (31) connecting a discharge chamber (3-2) and a crank chamber (2-1) (20). The solenoid 32 of the solenoid valve 20 is connected to the control computer C 1 through the drive circuit 55. The control computer C 1 ) Is controlled by the switching element. The control computer C 1 controls the input current value to the solenoid 32 based on the detected temperature information obtained by the temperature sensor 39. The control computer (C 1 ) instructs the drive circuit (55) of the input current value on the basis of the detected temperature obtained by the temperature sensor (39). The driving circuit 55 outputs the commanded input current value to the solenoid 32. [

Swash plate type variable displacement compressor

PCT No. PCT/JP93/01655 Sec. 371 Date Jun. 2, 1994 Sec. 102(e) Date Jun. 2, 1994 PCT Filed Nov. 12, 1993 PCT Pub. No. WO94/11636 PCT Pub. Date May 26, 1994A swash plate type variable displacement compressor is disclosed for adjusting an inclined angle of a swash plate (13) placed in a crank chamber (2a) in accordance with a pressure difference between the crank chamber (2a) and a gas suction chamber (4a) and for compressing gas supplied to compression chambers (18) from the gas suction chamber (4a) by pistons (21) that reciprocate with a stroke according to the inclined angle of the swash plate (13) in order to thereby control a volume of gas to be discharged from a gas discharge chamber (4b). A communication passage (23) connects the gas discharge chamber (4b) to the gas suction chamber (4a), and a branch passage (24) branching from the communication passage (23) is connected to the crank chamber (2a). Disposed in the communication passage (23) is a valve (25, 45) which normally blocks ...

Whirling-disc compressor for vehicle air-conditioning unit - has valve opened by electromagnetic clutch and closed on de-excitation so that pressure in whirling-disc chamber rises on account of connection to exhaust chamber

The whirling-disc chamber (24) is bounded by the multicylinder block (10) and a first housing (12). A second housing (14) together with the cylinder block defines induction and exhaust chambers (28,26). Rotation of a driving shaft (46) is converted (79) into reciprocating motion of each piston (22) in its cylinder (20) to which fluid is supplied during the induction stroke. The control valve (100) connecting the whirling-disc chamber to the induction chamber (28) is opened by excitation of the electromagnetic clutch (54) coupled to the shaft. USE/ADVANTAGE - In vehicle air-conditioning installations; the whirling plate can be moved to bring its setting angle to approximately zero while the compressor is at a standstill.

Kältemittelkompressor mit einfach wirkenden Kolben und Dämpfungseinrichtungen für Schwankungen des Anlaßdruckes

Kupplungsloser verdrängungsvariabler Taumelscheibenkompressor

TAUMELSCHEIBENVERDICHTER MIT VARIABLER FOERDERMENGE

Displacement controlling structure for clutchless variable displacement compressor

VALVE DEVICE

The invention relates to a valve device for controlling the change of the stroke position of adjustable plate compressors such as wobble plate or swash plate compressors that have a variable displacement. In order to adjust the stroke of the plate, the driving chamber pressure is controlled by influencing a first connection from the high pressure zone (3) to the driving chamber pressure zone (4) and optionally a second connection from the driving chamber pressure zone (4) to the intake pressure zone (6).

Variable displacement swash-plate type compressor

Taumelscheibenkompressor mit variabler Förderleistung

CLUTCHLESS SINGLE PISTON TYPE VARIABLE DISPLACEMENT COMPRESSOR

본 발명은 클러치 없는 압축기의 부하 토크의 급격한 변동을 제어한다. The present invention controls sudden fluctuations in the load torque of a clutch without a clutch. 회전축(9)상에 지지된 사판(15)의 경사각이 최소 경사각으로 향하면 사판(15)이 흡입 통로 개방 스프링(24)의 탄성력에 대항하여 전달통(28) 및 차단체(21)를 누른다. 차단체(21)는 사판 경사각이 최소 경사각일 때 위치 결정면(27)에 접하고, 흡입 통로(26)와 흡입실(3a)과의 연통을 차단한다. 흡입실(3a)과 크랭크실(2a)은 압력 방출 통로(14)에 의해 접속되고, 압력 방출 통로(14)상에는 전자 개폐 밸브(32)가 개재되어 있다. 제어 컴퓨터(Co)은 온도 감지기(39), 공조 장치 작동 스위치(40), 회전수 검출기(41)로부터의 검출 정보에 기초하여 전자 개폐 밸브(32)를 여자 및 소자 제어한다. When the inclination angle of the swash plate 15 supported on the rotating shaft 9 is directed to the minimum inclination angle, the swash plate 15 presses the transfer cylinder 28 and the blocking body 21 against the elastic force of the suction passage opening spring 24. The blocking body 21 is in contact with the positioning surface 27 when the swash plate inclination angle is the minimum inclination angle, and blocks the communication between the suction passage 26 and the suction chamber 3a. The suction chamber 3a and the crank chamber 2a are connected by the pressure release passage 14, and the electromagnetic opening / closing valve 32 is interposed on the pressure release passage 14. The control computer Co controls the excitation and element control of the solenoid valve 32 based on the detection information from the temperature sensor 39, the air conditioner operation switch 40, and the rotation speed detector 41. 크랭크실(2a)과 토출실(3b)은 압력 공급 통로(31)를 거쳐서 연통되어 있다. The crank chamber 2a and the discharge chamber 3b communicate with each other via the pressure supply passage 31.

Ventilvorrichtung

The invention relates to a valve device for controlling the change of the stroke position of adjustable plate compressors such as wobble plate or swash plate compressors that have a variable displacement. In order to adjust the stroke of the plate, the driving chamber pressure is controlled by influencing a first connection from the high pressure zone (3) to the driving chamber pressure zone (4) and optionally a second connection from the driving chamber pressure zone (4) to the intake pressure zone (6).

Swash plate type variable displacement compressor

A swash plate type variable displacement compressor is disclosed for adjusting an inclined angle of a swash plate (13) placed in a crank chamber (2a) in accordance with a pressure difference between the crank chamber (2a) and a gas suction chamber (4a) and for compressing gas supplied to compression chambers (18) from the gas suction chamber (4a) by pistons (21) that reciprocate with a stroke according to the inclined angle of the swash plate (13) in order to thereby control a volume of gas to be discharged from a gas discharge chamber (4b). A communication passage (23) connects the gas discharge chamber (4b) to the gas suction chamber (4a), and a branch passage (24) branching from the communication passage (23) is connected to the crank chamber (2a). Disposed in the communication passage (23) is a valve (25, 45) which normally blocks the communication passage (23) and opens the communication passage (23) to alter pressure in the crank chamber (2a).

Piston type variable displacement compressor

A compressor has a refrigerant gas passage selectively connected to and disconnected from a refrigerant circuit separately provided from the compressor. The compressor has a plurality of pistons reciprocable in a housing for compressing refrigerant gas. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with inclining motion with respect to the drive shaft to drive the pistons. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. A disconnecting member disconnects the refrigerant circuit from the refrigerant gas passage when the swash plate is at the minimum inclined angle. A bleed hole bleeds the refrigerant gas from the refrigerant gas passage to the refrigerant circuit to suppress rapid increase of the inclined angle when the disconnecting member operates.

Schiebscheibenverdichter mit veränderlicher Verdrängung

Swash plate type compressor

A swash plate compressor including a cylinder block accommodating a piston for compressing a refrigerant, a front housing coupled to the front of the cylinder block and having a crank chamber, a rear housing having a suction chamber, a discharge chamber and coupled to the rear of the cylinder block. The swash plate compressor includes a valve assembly including a valve plate inserted into the rear housing, a gasket inserted into the cylinder block, a suction plate inserted between the valve plate, the cylinder block, and a variable orifice module including a first orifice hole through which the refrigerant in the crank chamber passes, a second orifice hole communicating with the suction chamber to discharge the refrigerant passing through the first orifice hole to the suction chamber, and an intermediate passage interconnecting the first and second orifice holes, the first orifice hole having a variable reed, a degree of opening of which is varied depending on the pressure of the refrigerant.

Variable capacity compressor of swash plate type

크랭크실과 흡입실을 연통시키는 추기통로에 의해 크랭크실 내의 압력을 감소시키는 제어기구를 채택하고 있는 가변 용량형 사판식 압축기에 있어서, 최대 용량 운전시에 크랭크실 내에 윤활유를 과잉으로 저장하지 않아 우수한 내구성과 압축 효율의 유지를 양립시킬 수 있는 것을 과제로 한다. A variable displacement swash plate type compressor employing a control mechanism that reduces the pressure in the crank chamber by means of a bleeding passage communicating the crank chamber and the suction chamber, and does not excessively store lubricating oil in the crank chamber during maximum capacity operation. The object of the present invention is to be capable of maintaining both compression and compression efficiency. 상기 과제를 해결하기 위해, 도입측 제어기구는 사판(16)의 경사각에 관계없는 일정한 내경으로 크랭크실(8)과 흡입실(7a)을 연통시키는 추기통로(35)에 의해 크랭크실(8) 내의 압력을 감소시킨다. 크랭크실(8) 내에 저장되는 윤활유는 사판(16)이 최대 경사각 및 그 근방으로 경사져 있는 동안만은 흡입실(7a), 토출실(7b) 또는 압축실(30) 내로 배출되도록 구성되어 있다. In order to solve the above problems, the inlet-side control mechanism has a crank chamber 8 by means of a bleeding passage 35 for communicating the crank chamber 8 and the suction chamber 7a with a constant inner diameter irrespective of the inclination angle of the swash plate 16. To reduce the pressure within. The lubricating oil stored in the crank chamber 8 is configured to be discharged into the suction chamber 7a, the discharge chamber 7b or the compression chamber 30 only while the swash plate 16 is inclined at and near the maximum inclination angle.

Clutchless one-sided piston type variable displacement compressor

Wobble plate type compressor

The wobble plate type compressor is provided with a spring which is forced against a wobble device in such a way that it opposes a decrease of the inclination angle of the wobble plate. The force of the compression spring opposes a differential pressure force between a pressure in a crankcase interior and a pressure in a discharge chamber, which force causes a moment of the wobble plate in one direction. The pressure in the suction chamber is equal to the constant pressure level in the crankcase interior in the region where an inclination angle of the wobble plate is controlled. If the force of the spring is too weak, the temp. of the air exhausted through the evaporator is high, and thus the occupant of the vehicle feels uncomfortably hot.

Capacity control valve

밸브몸체에 불필요한 압력을 작용시키지 않도록 하여 밸브몸체에 높은 정밀도의 압력제어를 가능하도록 함과 동시에, 제어압력이 공급되는 제어실 내의 압력을 신속하게 변경하도록 하여 제어실의 동작을 변경하는 것으로, 본 발명은 용량제어밸브(1)에 있어서, 밸브몸체와 일체인 개방연결부(30)를 감압장치(22)와 일체인 계합부(22B)로부터 신속히 이탈 가능하도록 하여 밸브몸체의 신속한 밸브 개방을 가능하게 하고, 제어실내의 용량 또는 압력을 전환하도록 구성한 것이다. 또한, 감압장치(22)의 유효수압면적(Ab)에 대해 밸브몸체(21)의 실링수압면적(As)을, 나아가 밸브몸체(21)의 작동면(23) 수압면적(Ar2)을 동일한 면적으로 구성하고, 혹은 실링수압면(As)과 작동면(23)의 수압면적을 동일한 면적으로 해서 밸브본체에 설정된 압력만을 작용시키도록 한 것이다. 밸브, 수압면적 The present invention is to change the operation of the control chamber by changing the operation of the control chamber by quickly changing the pressure in the control chamber to which the control pressure is supplied while enabling high-precision pressure control on the valve body by preventing unnecessary pressure on the valve body. In the capacity control valve (1), the open connecting portion (30) integral with the valve body can be quickly detached from the engaging portion (22B) integral with the decompression device (22), so that the valve body can be opened quickly. It is configured to switch the capacity or pressure in the control room. Further, the sealing hydraulic pressure area As of the valve body 21 and the hydraulic pressure area Ar2 of the operating surface 23 of the valve body 21 are equal to the effective hydraulic pressure area Ab of the pressure reducing device 22. In this case, the pressure receiving area of the sealing pressure receiving surface As and the operating surface 23 are made the same so that only the pressure set in the valve body is allowed to act. Valve, hydraulic pressure area

Swash plate compressor

가변이동기구를 구비한 경사판형 압축기가 개시되어 있다. 압축기는 압축기 하우징에 회전가능하게 지지된 구동축과 구동축의 회전운동이 피스톤의 왕복운동으로 전환되도록 구동축을 피스톤과 구동연결하는 연걸기구를 포함하는 구동기구를 구비한다. 연결기구는 경사면을 가지는 경사판을 구비한다. 경사각은 압축기의 용량을 변화시키기 위하여 크랭크실내의 압력의 변화에 따라 변화한다. 구동축은 구동축의 다른 부분의 직경보다 작은 직경을 가지는 내단부를 구비한다. 경사판과 실린더 블록 사이의 구동축의 내단부위에는 경사각이 정해진 각 이하로 감소된 때 여러 경사각 사이에서 경사판의 자유로운 피봇운동이 방해됨이 없이 경사판이 최대경사각으로 복귀할 수 있도록 구동축의 다른 부분의 직경보다 더 큰 외경을 가지는 바이어스 스프링이 탄성적으로 설치된다. 따라서, 압축기의 재가동이 개시된때 압축기의 내부 구성부품위에 작용하는 충격력이 감소되며, 경사각이 정해진 각 이하로 감소하는 때 바이어스 스프링은 최대 경사각을 향하여 충분히 경사판을 가압할 수 있다. An inclined plate type compressor having a variable moving mechanism is disclosed. The compressor has a drive mechanism including a drive shaft rotatably supported by the compressor housing and a hook mechanism for driving connecting the drive shaft with the piston so that the rotational movement of the drive shaft is converted into a reciprocating motion of the piston. The connecting mechanism has an inclined plate having an inclined surface. The angle of inclination changes with the change of pressure in the crankcase to change the capacity of the compressor. The drive shaft has an inner end having a diameter smaller than the diameter of other portions of the drive shaft. At the inner end of the drive shaft between the inclined plate and the cylinder block, when the inclined angle is reduced below a predetermined angle, the free plate movement of the inclined plate is prevented between several inclined angles, so that the inclined plate can return to the maximum inclination angle than the diameter of the other part of the drive shaft. A bias spring with a larger outer diameter is elastically installed. Thus, the impact force acting on the internal components of the compressor when the compressor is restarted is reduced, and the bias spring can press the inclined plate sufficiently toward the maximum inclination angle when the inclination angle decreases below a predetermined angle.

Oscillating swash plate type variable displacement compressor

Slant plate type compressor with variable displacement mechanism

내용없음. None.

Clutchless one side piston type variable displacement compressor

내용 없음.

An oil separating structure of variable displacement compressor

本发明提供一种可变排量压缩机的油分离结构，包括：具有复数个缸膛的缸体；布置于缸体前部中的前套以形成旋转斜盘室；旋转地支撑在缸体上的驱动轴；布置在前套的旋转斜盘室中并固定安装在驱动轴上的凸耳板；布置于缸体后部中且具有与缸镗连通的排气室和吸气室的后套；被凸耳板旋转安装以改变其倾斜角的旋转斜盘；连接到旋转斜盘并在缸镗中往复运动的活塞；连通旋转斜盘室和排气室的吸气通道；连通旋转斜盘室和吸气室的附加排气通道；和安装在吸气通道中部的控制阀，其特征在于驱动轴(140)具有形成于其中用于连通旋转斜盘室(120a)与吸气室(132)的连通孔径(142)，凸耳板(180)具有穿过其中的第一连通孔(185a)和形成于其中用于连通第一连通孔(185a)和连通孔径(142)的第二连通孔(185b)。因此，没有附加的油分离器，仅使用在凸耳板中形成的连通孔，油和制冷剂被平滑地互相分离，从而简化了压缩机的内部结构。

Displacement control valve for variable displacement compressor

【課題】簡易な構成で、冷媒中の潤滑オイルをクランク室に効率よく帰還させることが可能な可変容量圧縮機用容量制御弁を提供する。 【解決手段】弁体２は、可変容量圧縮機の吐出室とクランク室とに連通する冷媒通路の間にクランク室側から着座するように配置され、この冷媒通路を開閉する。弁座形成部材３には、弁体２が着座される弁座５ａおよび弁孔５とともに、吐出室側とクランク室側とに連通する連通路としての貫通孔６が形成されている。ソレノイド部が駆動されて、弁体２がピストンロッド８に押圧されて閉止状態となった場合、吐出室側からの冷媒は貫通孔６を通じてクランク室側に流入する。これにより、弁体２が閉止されても、可変容量圧縮機内に潤滑オイルを循環させることができる。 【選択図】　　　　図２

INCLINED CAM TYPE VARIABLE CYLINDER COMPRESSOR WITH CAPACITY CONTROL MECHANISM

L'invention concerne un compresseur à cylindrée variable du type à came inclinée avec un mécanisme de commande de capacité.Ce compresseur comprend un carter enfermant une chambre de vilebrequin (4), une chambre d'aspiration (7) et une chambre de décharge (8). Le carter comprend un bloc-cylindres (3) dans lequel sont formés des alésages de cylindre (1). Des pistons sont montés coulissants à l'intérieur des alésages de cylindre (1). Un élément de vanne (25) est disposé dans un premier passage (24), qui fait communiquer le côté de décharge de chaque alésage de cylindre et la chambre de vilebrequin (4). Cet élément de vanne est commandé par la pression d'aspiration de l'alésage de cylindre. Un second passage (32) fait communiquer la chambre de vilebrequin (4) et le côté d'aspiration de l'alésage de cylindre à travers un orifice pour permettre la libération de la pression. The invention relates to a variable displacement compressor of the inclined cam type with a capacity control mechanism, comprising a housing enclosing a crankshaft chamber (4), a suction chamber (7) and a discharge chamber ( 8). The housing comprises a cylinder block (3) in which are formed cylinder bores (1). Pistons are slidably mounted inside the cylinder bores (1). A valve element (25) is arranged in a first passage (24), which communicates the discharge side of each cylinder bore and the crankshaft chamber (4). This valve element is controlled by the suction pressure of the cylinder bore. A second passage (32) connects the crankshaft chamber (4) and the suction side of the cylinder bore through an orifice to allow the release of pressure.

Control valve for variable displacement compressor

본 발명의 과제는 구성이 간단하고 제어성이 좋은 유량 제어식 가변 용량 압축기용 제어 밸브를 제공하는 것이다. 토출실로부터 토출된 토출 압력(Pd1)의 냉매를 도입하는 포트(23)와 유량이 제어된 토출 압력(Pd2)의 냉매를 유출시키는 포트(24)와의 사이에 통과하는 냉매의 유량에 따라서 밸브 리프트가 변화하는 메인 밸브(20)와, 그 메인 밸브(20)의 밸브 부재(28)를 가변 밸브 시트로 하고, 그 가변 밸브 시트와 통 형상 밸브 부재(32) 사이에 형성되는 간극의 크기에 따라서 유량 제어되는 압력(Pc)의 냉매를 포트(25)를 거쳐서 크랭크실에 공급하는 솔레노이드 밸브(21)를 구비하고 있다. 메인 밸브(20)가 유량 감지와 솔레노이드 밸브(21)의 밸브 시트를 겸용하고 있고, 솔레노이드 밸브(21)가 크랭크실에 공급하는 작은 유량의 냉매를 제어하는 구성이므로, 구조가 간단하고 안정된 유량 제어가 가능하다. 제어 밸브, 메인 밸브, 솔레노이드 밸브, 크랭크실, 포트, 플런저

Rotating Slope Plate Type Variable Compressor

크랭크실내에서의 냉매가스의 환류를 제어할 수 있는 이때문에 크랭크실내로 부터의 윤활류의 유출을 제어해서 윤활성을 향상시키고, 압축기의 내구성을 높인다. 토출실 (4b)와 흡입실(4a)을 연결로(23)에 의해 연결하고, 그 연결로 (23)의 도중에 용량제어밸브(25)와 고정다이어프램(5)를 설치한다. 또, 전기한 용량제어밸브(25)와 고정다이어프램(S)의 사이의 연결로(23)와 크랭크실(2a)를 하나의 분기통로(24)에 의해 연결한다. 연결로(23)와 분기통로(24)와의 접속점(E)의 상류측연결로(23A) 및 분기통로(24)에 의해 토출실(4b)내의 냉매가스를 크랭크실(2a)로 공급한다. 또, 크랭크실(2a)내의 냉매가스를 같은 분기통로(24) 및 접속점(E) 하류측의 연결로(23b)에 의해 흡입실(4a)로 배출한다.

Variable displacement swash-plate type compressor

Capacity control valve

Swash plate compressors with variable displacement

Control valve for variable displacement compressor for automotive vehicle air-conditioning system, is in equilibrium between belows force and force of electromagnetic solenoid, and diverse pressure emanating from exhaust chamber

The valve is in equilibrium between the bellows force and the force of the electromagnetic solenoid (13), and diverse pressures emanating from the exhaust chamber (42), from the engine casing (33) and the suction chamber (41), pressing on the control valve (1). The equilibrium is obtained by the action of a first rod pushed by the bellows and which pushes a valve body in the direction for opening the valve orifice, and by the action of a second rod pushed by the piston and which pushes the body of the valve in the opposed direction for closing the valve orifice.

Swash plate compressor with fixed or variable capacity

A fixed capacity swash plate type compressor permits cost reduction by using components and assembly steps common to those of a variable capacity swash plate type compressor. In place of a capacity control valve assembly that controls the opening of at least one of a refrigerant gas supplying passage and a bleed passage to adjust a crank chamber pressure, a cock member that maintains communication between a crank chamber area and a suction pressure area to disable capacity control while the compressor is in operation is installed in a compartment of the capacity control valve assembly in the variable capacity swash plate type compressor.

Volume control valve

在容量控制阀(1)中，与阀体一体的开阀连接部(30)可快速地从与感压装置(22)一体的卡合部(22B)脱离，可使阀体快速开阀来切换控制室内的容量或压力。相对于感压装置(22)的有效受压面积Ab，将阀体(21)的密封受压面积As以至于阀体(21)的作动面(23)的受压面积Ar2也构成同一或大致同一的面积，或将密封受压面积As和作动面(23)的受压面积构成同一或大致同一面积，仅使设定的压力作用于阀体。可进行阀体的高精度压力控制而无用的压力不作用于阀体，并变更控制室的作动，以能快速地变更供给控制压力的控制室内的压力。

Variable capacity swash plate type compressor

本发明涉及一种可变容量斜盘式压缩机，其包括倾斜调节机构，上述倾斜调节机构具有使排出室与曲轴箱连通的第一流路和使曲轴箱与吸入室连通的第二流路，在上述第二流路形成有孔口和孔口调节机构，上述孔口调节机构调节上述孔口的有效流动截面面积，在上述孔口和上述孔口调节机构中，当上述曲轴箱的压力与上述吸入室的压力之间的差压增加时，上述有效流动截面面积可以变为大于零(0)的第一面积，当上述差压更增加时，上述有效流动截面面积可以成为第二面积，上述第二面积大于零(0)且小于上述第一面积。

Control valve for variable displacement compressor

A control valve for a variable displacement compressor has a port 23 for introducing refrigerant at discharge pressure Pd1 and a port 24 for allowing refrigerant at discharge pressure Pd2 to flow out at a controlled flow rate. A main valve 20 is provided the valve lift of which is varied according to the flow rate. A solenoid valve 21 uses a valve element 28 of the main valve 20 as a variable valve seat and supplies refrigerant to the crankcase at pressure Pc the flow rate of which is controlled according to the size of a gap formed between the variable valve seat and the hollow cylindrical valve element 32. The main valve 20 senses the flow rate but also serves as the valve seat of the solenoid valve 21. The solenoid valve 21 controls the small flow rate into the crankcase.

Oblique tray type compressor with variable capacity control mechanism

具有容量调节机构的斜盘式压缩机，有包括多个 气缸的缸体和曲轴室的壳体。活塞可滑动地装在各 气缸内并由驱动机构驱动作往复运动，该驱动机构包 括平面倾斜角度可调的斜盘，斜盘的倾角由压缩机的 容量根据曲轴室和吸入室间的压差进行调节。无论 曲轴室还是吸入室的压力都由设置在连通曲轴室和 吸入室的通道中的外部控制阀机构调节，内部控制的 安全阀可防止曲轴室和吸入室间出现异常压差。安 全阀设置在外部控制阀机构内。

Variable displacement swash-plate compressor

사판의 경사각이 액추에이터에 의해 변화되고, 크기가 감소되고 개별 압축기들간 우수한 품질 안정성을 가지는 압축기가 제공된다. 이 압축기에서, 제어 압력 챔버 (13c) 내 압력 증가로 인해, 이동체 (13a) 는 플랜지 (431) 를 향해 이동한다. 이때, 이동체 (13a) 는 제 1 및 제 2 견인 암들 (132, 133) 에 의하여 사판 챔버 (33) 의 후방측으로 사판 (5) 의 타 단부측을 당긴다. 따라서, 링크 기구 (7) 는 사판 (5) 의 경사각이 그것의 최대값까지 증가하도록 허용한다. 제어 압력 챔버 (13c) 내 압력이 필요한 제어 압력에 도달할 때, 사판 챔버 (33) 의 후방측으로 이동한 이동체 (13a) 의 후방벽 (130) 은 플랜지 (431) 의 전방면 (431a) 과 접촉한다. 따라서, 이 압축기에서 사판 (5) 의 경사각의 최대값을 조절할 수 있다. The inclination angle of the swash plate is changed by the actuator, the compressor is reduced in size and has excellent quality stability among individual compressors. In this compressor, due to an increase in the pressure in the control pressure chamber 13c, the moving body 13a moves toward the flange 431. [ At this time, the moving body 13a pulls the other end side of the swash plate 5 toward the rear side of the swash plate chamber 33 by the first and second traction arms 132, 133. Thus, the link mechanism 7 allows the inclination angle of the swash plate 5 to increase to its maximum value. The rear wall 130 of the moving body 13a which has moved to the rear side of the swash plate chamber 33 contacts the front face 431a of the flange 431 when the pressure in the control pressure chamber 13c reaches the required control pressure, do. Therefore, the maximum value of the inclination angle of the swash plate 5 can be adjusted in this compressor.

Inclination template compressor with variable discharge capacity mechanism

一种具有可变排出量机构的压缩机，包括一个驱 动轴，一个装在上述驱动轴上的倾斜板，倾斜板可在 相对于一个与驱动轴相垂直的平面的最大倾斜角度 和最小倾斜角度之间变化，驱动轴一部分的直径小于 其余部分的直径，在驱动轴的上述转子直径部分装有 一个预压弹簧，其外径大于驱动轴上述其余部分的直 径，用于在倾斜板的倾斜角度减小到小于一个预定的 角度值时促使倾斜度恢复到其最大的倾斜角度，同时 又不会影响倾斜板在不同倾斜角度之间的自由驱 动。

Twist coil spring biased wobble plate compressor

TWIST COIL SPRING BIASED WOBBLE PLATE COMPRESSOR ABSTRACT OF THE DISCLOSURE A refrigerant compressor including a compressor housing hav-ing a cylinder block is disclosed. A plurality of cylinders are formed around the periphery of the cylinder block. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mecha-nism. A crank chamber is formed between the cylinder block and a front end plate of the compressor housing. The drive mechanism includes a drive shaft, a rotor disposed on the drive shaft, a slant plate with an adjustable slant angle disposed adjacent the rotor and a wobble plate disposed adjacent the slant plate. The drive shaft is rotatably supported within the front end plate. Rotation of the drive shaft causes rotation of the rotor and the slant plate, causing nutational motion of the wobble plate to reciprocate the pistons within their cylinders. The compressor housing includes a rear end plate defining suction and discharge. A communicating path commu-nicates between the crank chamber and the suction chamber. A stroke of pistons is changed by adjusting a slant angle of the slant plate. An elastic member urges the slant plate toward minimum slant angle to adjust the slant angle of the slant plate.

Swash plate type compressor

Refrigeration-cycle apparatus for vehicle use

A motor vehicle air conditioner control system that maintains a target cooling vent temperature without sacrificing vehicle engine performance. When a vehicle air conditioning compressor increases to above a predetermined speed and the vehicle engine driving force increases, such as during a period of engine acceleration, compressor cooling capacity becomes saturated and does not increase. When the speed of the compressor rises to a predetermined value and the compressor assumes a high-speed state, thereafter, while the compressor is in the high-speed state, operation of the compressor is controlled so as to sustain the vent-air temperature of an evaporator determined at a time when the high-speed state has been assumed. As a result, the amount of increase of the driving force due to this compressor speed increase is suppressed by reducing the volume of the compressor, thereby resulting in power savings while securing substantially maximum cooling capacity.

Air-conditioning system

An air-conditioning system capable of always effectively performing the heating function by selectively using one of a cooling circuit and a heating circuit sharing a variable displacement type compressor is disclosed. An electromagnetic capacity control valve ( 43 ) controls the discharge capacity of a variable displacement type compressor ( 25 ) in response to the differential pressure between the discharge pressure Pd of a discharge chamber ( 132 ) and the suction pressure Ps of a suction chamber ( 131 ). The energization and deenergization of the capacity control valve ( 43 ) is controlled by a control unit ( 59 ). When a cooling command switch ( 63 ) is turned on, the control unit ( 59 ) deenergizes a switching valve ( 29 ) thereby to control the cooling operation while at the same time controlling the discharge capacity by the capacity control valve ( 43 ). When a heating command switch ( 64 ) is turned on, on the other hand, the control unit ( 59 ) energizes the switching valve ( 29 ) thereby to control the heating operation while at the same time controlling the discharge capacity by the capacity control valve ( 43 ).

Swash plate compressor with either constant and variable displacement

Variable capacity compressor

[Object] To provide a variable capacity compressor capable of improving the startup performance of the compressor, reducing the amount of refrigerant circulating internally during an intermediate stroke, and eliminating the risk of becoming out of control due to contaminants in the refrigerant or the like. [Solution] The variable capacity compressor includes an open passage 50 communicating a control pressure chamber 4 with a suction chamber 33 and a valve accommodating chamber 51 formed in the open passage and the open passage 50 includes an upstream side open passage 50a communicating the control pressure chamber 4 with the valve accommodating chamber 51 and a downstream side open passage 50b communicating the valve accommodating chamber 51 with the suction chamber 33. In addition, the variable capacity compressor is provided with a valve element 52 accommodated in the valve accommodating chamber 51 so as to open or close the downstream side open passage 50b, urging means (spring 53) that urges the valve element 52 so as to open the downstream side open passage 50b, a discharge pressure introduction passage 54 communicating the valve accommodating chamber 51 with the discharge chamber, and a check valve 55, provided in the upstream side open passage 50a, that allows only a flow of the fluid from the control pressure chamber 4 to the valve accommodating chamber 51.

Slant plate-type variable displacement compressors with capacity control mechanisms

A slant plate-type variable displacement compressor includes a housing enclosing a crank chamber, a suction chamber, and a discharge chamber. The housing includes a cylinder block, and cylinder bores are formed therein. Pistons are slidably disposed within the cylinder bores. A valve member is disposed in a first passage, which communicates between a discharge side of the cylinder bore and the crank chamber. The valve member is controlled by a suction pressure of the cylinder bore. A second passage communicates between the crank chamber and a suction side of the cylinder bore through an orifice for allowing pressure to release. A cross-sectional area of the orifice is variably controlled, such that when compressor operation begins, the cross-sectional area of the orifice is greater than that during a capacity control operation.

Swash plate type compressor

A compressor has a refrigerant gas passage selectively connected to and disconnected from a refrigerant circuit apart from the compressor. A swash plate is supported on a drive shaft for integral rotation with inclining motion with respect to the drive shaft to drive the pistons. The swash plate is moveable between a maximum inclined angle and a minimum inclining angle. A disconnecting member disconnects the refrigerant circuit from the refrigerant gas passage when the swash plate is at the minimum inclined angle.

Air conditioner

Capacity control valve

A capacity control valve that implements an accurate pressure control of a valve body by preventing unwanted pressures from influencing on the valve body and that alters the function of a control chamber such that the pressure within the control chamber to which a control pressure is supplied can quickly be modulated. In the capacity control valve, a valve opening joint portion which is integral with a valve body can rapidly be disengaged from an engagement portion which is integral with a pressure sensing device, hence a quick lifting of the valve body so as to modulate the capacity or pressure in the control chamber. Also equating, exactly or approximately, the seal pressure receiving area of the valve body to the effective pressure receiving area of the pressure sensing device, and further to the pressure receiving area of an action face, or equating, exactly or approximately, the seal pressure receiving area to the pressure receiving area of an action face, yields only a desired pressure to act on the valve body.

Variable displacement compressor

A variable displacement compressor comprising a displacement control valve disposed somewhere in a discharge pressure supply passageway capable of communicating with a crank chamber from a discharge chamber, and a fixed orifice disposed somewhere in a pressure relief passageway communicating with a suction chamber from the crank chamber, the displacement control valve being controlled in opening/closing operation to adjust a pressure in the crank chamber to control a piston stroke, wherein a part of the discharge pressure supply passageway and a part of the pressure relief passageway are formed as a common passageway communicating with a crank chamber end. Variable displacement control at a high reliability is possible with no foreign matter accumulation in the displacement control passageway, and the processing of a cylinder block is simplified.

Piston type variable displacement compressor

1. 청구범위에 기재된 발명이 속한 기술분야 1. TECHNICAL FIELD OF THE INVENTION 본 발명은 클러치리스 핀측피스톤식 압축기에 관한 것이다. The present invention relates to a clutchless pin side piston compressor. 2. 발명이 해결하려고 하는 기술적 과제 2. The technical problem to be solved by the invention 본 발명은 클러치리스 압축기에 있어서 토오크변동을 제어하는 것을 목적으로 한다. An object of the present invention is to control torque fluctuation in a clutchless compressor. 3. 발명의 해결방법의 요지 3. Summary of Solution to Invention 회전축(9)상에는 사판지지체(14)가 슬라이드가능하게 지지되어 있다. 사판지지체(14)에 지지된 사판(15)의 경사각이 최소경사각이 되면 사판지지체(14)가 전달통(56) 및 차단체(21)을 누른다. 차단체(21)은 사판경사각이 최소경사각일 때에 위치결정면(55)에 접하고, 흡입통로(54)와 흡입실(3a)는 노즐구멍(21d), 차단체(21) 내부 및 압력개방통기구(21c)를 통해서 연결된다. 토출실(3b)에는 토출개폐밸브(60)가 수용되어 있다. 토출개폐밸브(60)은 사판경사각이 최소일 때에는 토출실(3b)와 외부냉매회로(49)의 연결을 차단한다. On the rotating shaft 9, the swash plate support member 14 is slidably supported. When the inclination angle of the swash plate 15 supported by the swash plate support 14 reaches the minimum inclination angle, the swash plate support 14 presses the transfer tube 56 and the blocking body 21. The blocking body 21 is in contact with the positioning surface 55 when the swash plate inclination angle is the minimum inclination angle, and the suction passage 54 and the suction chamber 3a have the nozzle hole 21d, the blocking body 21 inside, and the pressure opening vent ( Connection via 21c). The discharge opening / closing valve 60 is accommodated in the discharge chamber 3b. The discharge opening / closing valve 60 cuts off the connection between the discharge chamber 3b and the external refrigerant circuit 49 when the swash plate inclination angle is minimum.

Compressor

(57)【要約】 【課題】 内部に存在する潤滑油の外部冷媒回路への排 出量を低減可能な圧縮機を提供すること。 【解決手段】 分離空間６３は、フロントハウジング１ １とシリンダブロック１２との接合により、両者１１， １２の外周部に形成される。吐出室３９は分離空間６３ に接続されている。分離通路６６は分離空間６３内に形 成され、同分離空間６３内に流入された吐出冷媒ガスを 案内して、その流路を曲折させつつ吐出口６５に至らせ る。従って、吐出冷媒ガスから潤滑油が効果的に分離さ れ、分離された潤滑油は油戻し通路６９を介してクラン ク室１５に帰還される。

Variable displacement compressor

Patent DE3609058C2

Clutchless one-sided piston type variable displacement compressor

climate system

Capacity detection device for swash plate type variable displacement compressor

Reciprocating compressor

본 발명의 목적은 크랭크실과 흡입실이나 토출실 등을 연결 관통시키기 위한 통로를, 가늘고 긴 드릴을 사용하지 않고, 실린더 블록에 대하여 용이하고 동시에 단시간에 관통형성할 수 있도록 하는 것이다. An object of the present invention is to allow a passage for connecting a crank chamber, a suction chamber, a discharge chamber, and the like to be easily and simultaneously formed through a cylinder block without using an elongated drill. 본 발명의 구성은 실린더블럭(1)의 양끝단면에 전면하우징(2) 및 후면하우징(4)를 접합하고, 이들을 복수의 관통볼트(5)에 의해 단단히 조여 고정하는 것. 그리고 흡입실(11)과 크랭크실(17)을 연결관통시키기 위한 기체추출통로(31)를, 실린더블럭(1)에 관통설치된 복수의 볼트삽입 관통구멍(32)중의 하나의 볼트삽입 관통구멍(32A)을 사용하여 형성하는 것으로 이루어진다. The constitution of the present invention is to join the front housing (2) and the rear housing (4) to both end surfaces of the cylinder block (1), and fasten and fix them by a plurality of through bolts (5). One of the bolt insertion through-holes of the plurality of bolt insertion through holes 32 provided in the cylinder block 1 through the gas extraction passage 31 for connecting the suction chamber 11 and the crank chamber 17 with each other. Forming using 32A).

Air conditioner system

一种可通过选择性地使用冷却系统和加热系统之一与可变排量式压缩机一起工作而总是有效地履行其加热功能的空调系统,电磁式容量控制阀(43)根据排出室(132)的排气压力Pd与吸入室(131)的吸气压力Ps之间的压力差调节上述的可变排量式压缩机(25)的排出量。通过控制装置(59)控制上述的容量控制阀(43)的通电和断电,当接通冷却控制开关(63)时,控制装置(59)使换向阀(29)断电,从而控制冷却作业,与此同时又由容量控制阀(43)控制排出量,另一方面,当接通加热控制开关(64)时,控制装置(59)使换向阀(29)通电,从而控制加热作业,与此同时又由容量控制阀(43)控制排出量。

Variable-type swash plate compressor having a cock member for fixed capacity operation and manufacturing method therefor

A fixed capacity swash plate type compressor permits cost reduction by using components and assembly steps common to those of a variable capacity swash plate type compressor. In place of a capacity control valve assembly that controls the opening of at least one of a refrigerant gas supplying passage and a bleed passage to adjust a crank chamber pressure, a cock member that maintains communication between a crank chamber area and a suction pressure area to disable capacity control while the compressor is in operation is installed in a compartment of the capacity control valve assembly in the variable capacity swash plate type compressor.

Control valve for variable displacement compressor

A control valve according to one embodiment includes a shaft (68) that transmits the solenoidal force to a valve element (24). A solenoid (3) includes a bottomed sleeve (52) into which the pressure of refrigerant is introduced, a core (50) secured coaxially to the sleeve (52), a plunger (54), contained in the sleeve (52) on its bottom side, which is displaceable integrally with the shaft (68) in a direction of axis line, a spring (40) that applies the biasing force in a valve opening direction to the shaft (68), a spring (78) that applies the biasing force in a valve closing direction to the plunger (54), and a shaft support member (76), which is press-fitted such that the shaft support member (76) is secured to an inner wall of the sleeve (52) near its bottom portion. The spring (78) is set between the shaft support member (76) and the plunger (54). A pressure is applied to the shaft support member (76) by deforming the bottom portion of the sleeve (52) in the direction of axis line, so that the press-fitting position of the shaft support member (76) relative to the sleeve (52) can be adjusted.

Variable displacement swash plate type compressor

本发明提供一种可变排量旋转斜板式压缩机，在本发明的压缩机中，第一动作部和第二动作部形成在可移动本体的第一圆筒部的后端处。第一动作部和第二动作部通过横跨上止点表面形成并且相对于上止点表面平面对称。此外，在旋转斜板的前表面上形成有受作用部。第一动作部和第二动作部以及受作用部相对于驱动轴轴线偏心地位于上止点位置对应部侧。在压缩机中，当减小旋转斜板的倾斜角时，第一动作部和第二动作部将以上止点表面作为参照而分别地按压受作用部。从而，在压缩机中，当减小旋转斜板的倾斜角时，可移动本体沿着驱动轴轴线方向有利地移动。

Capacity control valve for variable displacement compressor

A valve seat-forming element (3) provided in a refrigerant passage, has parallely extending valve hole (5) and through hole (6) that constantly connect a discharge chamber and a crank chamber even when the capacity control valve (100) is in closed state.

Clutchless signal head piston type variable capacity compressor

무클러치 압축기에서의 부하 토오크의 증대를 완만하게 하는 것으로, 회전축(9)상에 지지된 경사판(15)의 경사가 최소경사각으로 향하면, 경사판(15)가 흡입통로 개방 스트링(24)의 스프링력에 대항해서 전달통(28) 및 차단체(21)를 누른다. 차단체(21)의 차단면(21e)은 경사판 경사각이 최소 격사각일때 위치결정면(27)에 맞닿고, 흡입통로(26)와 흡입실(3a)의 연통을 차단한다. 차단면(21e)에는 드로틀(20)이 설치되어 있다. 드로틀(20)은 경사판(15)의 경동에 연동해서 흡입통로(26)에 대해서 출몰한다. 드로틀(20)의 직경은 흡입통로(26)의 직경보다도 약간 적게한다. 드로틀(20)이 흡입통로(26)내에 들어가 있을때는 흡입 통로(26)에서의 통과 단면적이 조여든다. When the inclination of the inclined plate 15 supported on the rotating shaft 9 is directed to the minimum inclination angle by slowly increasing the load torque in the clutchless compressor, the inclined plate 15 is a spring force of the suction passage opening string 24. Press the delivery container 28 and the blocker 21 against. The blocking surface 21e of the blocking body 21 abuts on the positioning surface 27 when the inclination plate inclination angle is the minimum diagonal angle, and blocks the communication between the suction passage 26 and the suction chamber 3a. The throttle 20 is provided in the blocking surface 21e. The throttle 20 emerges from the suction passage 26 in association with the tilting of the inclined plate 15. The diameter of the throttle 20 is slightly smaller than the diameter of the suction passage 26. When the throttle 20 enters the suction passage 26, the passage cross section in the suction passage 26 is tightened.

Swash plate type variable displacement compressor

A swash plate type variable displacement compressor includes a cylinder block defining a cylinder bore. A housing is fixed to the cylinder block and defines a crank chamber. A drive shaft is rotatably supported by the housing and the cylinder block. A swash plate is supported by the drive shaft in the crank chamber and is inclinable with respect to the axis of the drive shaft. A piston is accommodated in the cylinder bore so as to define a compression chamber in the cylinder bore and is coupled to the swash plate. A control mechanism includes a bleed passage for controlling the pressure in the crank chamber. The compressor is formed such that lubricating oil in the crank chamber is discharged into at least one of the suction chamber, the discharge chamber and the compression chamber while the inclination angle of the swash plate is substantially a maximum inclination angle.

Swash plate compressors with variable displacement

Compressor with variable displacement mechanism

내용없음. None.

Control valve for variable displacement compressor

Variable capacity swash-plate compressor with electromagnetic clutch

내용 없음

Slant plate type compressor with variable displacement mechanism

내용 없음. No content.

Variable displacement swash-plate type compressor

Capacity control valve

Piston type variable displacement compressor

A compressor has a swash plate (15) tiltable between maximum and minimum inclining angles with respect to a plane perpendicular to an axis of a drive shaft (9) according to a difference between pressures in a crank chamber (2a) and a suction chamber (3a). An internal gas passage (2a, 3a, 3b, 30, 31) includes the crank chamber (2a), the suction chamber (3a) and a discharge chamber (3b). The internal gas passage is connected to an external circuit (35) separately provided from the compressor. The rotation of the drive shaft (9) is converted to a reciprocating movement of a piston (22) to vary a capacity of a cylinder bore (1a). The piston (22) compresses a gas supplied from the external circuit (35) to the internal gas passage (2a, 3a, 3b, 30, 31) and discharges the gas to the external circuit (35). A inhibiting apparatus (21, 28, 42; 21, 28, 57; 28, 58, 59, 60; 28, 61, 62, 63; 28, 64, 65, 66) inhibits the circulation of the gas through the internal gas passage (2a, 3a, 3b, 30, 31) and the external circuit (35) when the swash plate (15) is located between the minimum inclining angle and a first inclining angle. The first inclining angle is greater than the minimum inclining angle of the swash plate (15).

Variable displacement swash plate type compressor

본 발명의 압축기에서, 제1 작용부(134) 및 제2 작용부(135)는 가동체(13a)의 제1 원통부(131)의 후단에 형성된다. 제1 작용부(134) 및 제2 작용부(135)는 상사점 평면(F)을 가로질러 단차 모양으로 함으로써 형성되고, 상사점 평면(F)에 대하여 평면 대칭이다. 또한, 작용 수용부(5f)가 사판(5)의 전방면(5a) 상에 형성된다. 제1 작용부(134) 및 제2 작용부(135)와 작용 수용부(5f)는 구동 축선(O)으로부터 상사점 위치 대응부(T) 측으로 편심되게 위치된다. 압축기에서, 사판(5)의 경사각을 감소시킬 때, 제1 작용부(134) 및 제2 작용부(135)는 상사점 평면(F)을 기준으로 작용 수용부(5f)를 개별적으로 가압한다. 이로 인해, 압축기에서, 사판(5)의 경사각을 감소시킬 때, 가동체(13a)는 구동 축선(O) 방향으로 적합하게 이동한다.

capacity control valve

Restriction structure in variable displacement compressor

A seal (35) is provided between the housing assembly (10) of a variable displacement compressor and a rotary shaft (13) to seal inside the housing assembly (10). The seal is retained in a retaining chamber (40), which is separated from a suction chamber (121) and a control pressure chamber (111). A refrigerant passage is connected to the retaining chamber (40) to feed a refrigerant to the retaining chamber (40) to cause the refrigerant to contact the seal (35). The refrigerant passage includes a path extending from outside the housing assembly (10) to the suction chamber (121) through the retaining chamber (40). A restriction ring having a restriction function guides the refrigerant from the control pressure chamber (111) to the retaining chamber (40) and releases an internal pressure of the control pressure chamber (111).

Clutchless variable capacity single sided piston swash plate type compressor and method of controlling capacity

내용 없음. No content.

Swash plate type compressor

A compressor has a refrigerant gas passage selectively connected and disconnected with a refrigerant circuit apart from the compressor. A swash plate is supported on a drive shaft for the integral rotation with the inclining motion in respect with the drive shaft to drive the pistons. The swash plate is moveable between a maximum inclining angle and a minimum inclining angle. A disconnecting member disconnects the refrigerant, circuit wath the refrigerant gas passage when the swash plate is at the minimum inclining angle.

Variable displacement type rocking plate compressor

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Clutchless One-sided Piston Type Variable Capacity Compressor

1. 청구범위에 기재된 발명이 속한 기술분야 : 본 발명은 클러치리스 편측피스톤식 압축기에 관한 것이다. 2.발명이 해결하려고 하는 기술적과제 : 본 발명은 클러치리스압축기에 있어서 토오크변동을 제어하는 것을 목적으로 한다. 3. 발명의 해결방법의 요지 : 회전축(9)상에는 사판지지체(14)가 슬라이드가능하게 지지되어 있다. 사판 지지체(14)에 지지된 사판(15)의 경사각이 최소경사각이 되면 사관지지체(14)가 전달통(57) 및 차단체(21)을 누른다. 차단체(21)은 사파나경사각이 최소경사각일 때에 위치결정면(55)에 접하고, 흡입 톤로(54)와 흡입실(3a)는 노즐구멍(21d),차단체(21) 내부 및 압력개방통기구(21c)를 통해서 연결된다. 토출실(3b)에는 토출개폐밸브(60)가 수용되어 있다. 토출개폐밸브(70)은 사판경사각이 최소일 때에는 토출실 (3b)와 외부냉매회로(49)의 연결을 차단한다.

Control unit for variable displacement compressor

Rotating machinery for vehicles

Polyalcohol homopolymer

(57)【要約】 【課題】 車両エンジンの省動力と冷房性能の確保との 両立を図る。 【解決手段】 圧縮機２の回転数が所定回転数（例え ば、２０００ｒｐｍ）を越える高回転領域では、圧縮機 ２の回転数が増加して動力が増加しても、冷房能力は増 加せず、飽和するという点に着目して、圧縮機２が最大 容量近傍の運転状態にあるとき、圧縮機２の回転数が所 定値以上に上昇して圧縮機２が高回転状態になると、以 後、圧縮機２が高回転状態にある間は、高回転状態にな った時点における、蒸発器６の吹出空気温度を維持する ように、圧縮機２の容量を制御する。これにより、圧縮 機２の回転数増加による動力増加分を圧縮機の容量低減 により抑制して、ほぼ最大の冷房能力を確保しつつ、省 動力効果を発揮する。

Swash Plate Type Compressor

A compressor has a refrigerant gas passage selectively connected and disconnected with a refrigerant circuit apart from the compressor. A swash plate is supported on a drive shaft for the integral rotation with the inclining motion in respect with the drive shaft to drive the pistons. The swash plate is moveable between a maximum inclining angle and a minimum inclining angle. A disconnecting member disconnects the refrigerant, circuit wath the refrigerant gas passage when the swash plate is at the minimum inclining angle.

Capacity control valve

Rotary machine for vehicle

A rotary machine for a vehicle has a housing, a pressure exerting mechanism, a rotary shaft, a rotary body, a power transmission clutch assembly and an electric motor. The rotary machine is selectively driven by the electric motor and an external drive source. The mechanism is located in the housing. The rotary shaft is rotatably supported by the housing, and one end of the rotary shaft protrudes from the housing. The rotary body is coaxially located on the rotary shaft on the protrusion side and is operatively connected to the rotary shaft. The rotary body forms a cylinder having an open end at one end and a closed surface at the other end, and the closed surface is adjacent to the housing. The power transmission clutch assembly is placed between the rotary body and the rotary shaft. The electric motor is at least partially located in the cylinder.

Sealing system for compressors

Slant plate type compressor with variable capacity control mechanism

Compressors

A compressor includes a suction chamber, a crank chamber, and a drive shaft extending through the crank chamber. The drive shaft includes a passage formed therein, and a hole formed therein. For example, the hole may be formed through the drive shaft. The compressor also includes a path communicating between the crank chamber and the suction chamber. Specifically, the path includes the passage and the hole.

Variable displacement compressor operation control system

Variable-capacity swash plate-type compressor

The present invention relates to a variable-capacity swash plate-type compressor comprising: a casing; a rotating shaft; a swash plate; a piston; and an inclination adjustment device comprising a first channel through which a discharge chamber communicates with a crank chamber so as to adjust the inclination angle of the swash plate, and a second channel through which the crank chamber communicates with an intake chamber. The second channel has an orifice hole formed therein so as to reduce the pressure of a fluid passing through the second channel, and has an orifice adjustment device formed therein so as to adjust the effective flow sectional area of the orifice hole. The orifice hole and the orifice adjustment device may be formed such that, if the pressure difference between the pressure in the crank chamber and the pressure in the intake chamber increases, the effective flow sectional area changes from zero (0) to a first area larger than zero (0) and, if the pressure difference further increases, the effective flow sectional area becomes a second area larger than zero (0) and smaller than the first area. Accordingly, quick adjustment of the amount of discharged refrigerant and prevention of degradation of the compressor efficiency can be accomplished simultaneously. In addition, time necessary to switch to a maximum mode can be reduced.

Control valve of variable displacement compressor

A control valve of a variable displacement compressor is disclosed. The control valve includes a valve housing, a valve body, a valve opening spring, an electromagnetic actuator, and an urging plate. The valve housing has a valve chamber that forms a part of a supply passage. The valve body can selectively contact and separate from a valve seat in the valve chamber. The valve opening spring urges the valve body away from the valve seat. The electromagnetic actuator changes electromagnetic urging force acting on the movable iron core through control of externally supplied current. In a state where the electromagnetic actuator is not energized and the valve body is held at a position separated from the valve seat by the urging force of the valve opening spring, the urging plate deforms in such a manner as to urge the valve body toward the valve seat when the temperature of the urging plate reaches a predetermined temperature. The urging force of the urging plate when the temperature reaches the predetermined temperature is set to be greater than the urging force of the valve opening spring in a state where the electromagnetic actuator is not energized.

A capacity control device for a compressor in a refrigerating system

A control valve (CV) is located in a variable displacement compressor incorporated in a refrigerant circuit. The control valve (CV) controls the displacement of the compressor in accordance with a pressure difference between a first pressure monitoring point (P1) and a second pressure monitoring point (P2), which are located in the refrigerant circuit, such that the pressure-difference seeks a predetermined target value. An adjusting valve (39), which is a variable throttle valve, is located in a section of the refrigerant circuit between the first and second pressure monitoring points (P1, P2). The adjusting valve (39) adjusts the restriction amount of the refrigerant in relation to the refrigerant flow in the refrigerant circuit. The compressor displacement is thus optimally controlled.

Compression displacement controller of refrigerating cycle

In a compression capacity control device for a refrigeration cycle including a variable displacement compressor (10) that compresses refrigerant sucked from a suction chamber (3) communicating with a suction line (1), and discharges the refrigerant into a discharge chamber (4) communicating with a discharge line (2), while varying the delivery quantity of the refrigerant by changing pressure in a pressure-regulating chamber (12) which has the pressure therein controlled by an electromagnetic control valve (20), the electromagnetic control valve (20) arranged between the discharge chamber (4) and the pressure-regulating chamber (12) is held in an open state to place the variable displacement compressor (10) in a state with the minimum delivery quantity within a variable range, when the electromagnetic control valve (20) is in a deenergized state. This makes it possible to dispense with a clutch for inhibiting operation of the compressor, thereby largely reducing the device cost.

Swash-plate compressor having a capacity control valve on the oil return passageway adjacent an oil separator

A compressor having an oil separator at a shell portion of a housing of the compressor. The oil separator is constructed by a front part 61 integral to a front housing 11 and a rear part 62 integral to a cylinder block 12. The oil separator has an oil separation chamber 1 formed between the front and the rear parts 61 and 62. The oil separator is formed integrally with oil separating passageway forming plates 67 and 68 which partially divide the separation chamber 63 to create a serpentine shaped passageway 66 which extends from an inlet 64a to an outlet 65 of the separation chamber. The passageway 66 is in communication with the crank chamber 15 via a oil return passageway 69 at a location adjacent its outlet.

容量制御弁

Variable-displacement swash plate type compressor

A first bleeding passage 50 configured to allow a crank chamber 2 and a suction chamber 31 to constantly communicate with each other, and a second bleeding passage 60 configured to allow the crank chamber 2 and the suction chamber 31 to constantly communicate with each other are provided. The first bleeding passage 50 is made to communicate with the crank chamber 2 at least via a space (central hole space 54) defined by an insertion end portion of a shaft 7 in a central hole 12 that is formed in the center of a cylinder block 1 and into which the shaft 7 is inserted. The second bleeding passage 60 is opened in an end surface 1a of the cylinder block 1 that is opposed to a swash plate 19.