Abstract: A variable displacement swash plate type compressor includes a rotary shaft, a tiltable swash plate, a movable body that is coupled to the swash plate and changes the inclination angle of the swash plate, a link mechanism that permits the inclination angle of the swash plate to be changed, a first support portion provided to the movable body, a second support portion provided to the swash plate, and a first coupling member that couples the first and second support portions to each other. The second support portion is pivotally supported by the first coupling member. The swash plate has top and bottom dead center associated parts for positioning each piston at top and bottom dead centers, respectively. The top and bottom dead center associated parts are arranged with the rotary shaft in between. The second support portion is arranged between the top and bottom dead center associated parts.

Abstract: A variable displacement swash plate type compressor includes a control valve having a valve body and a solenoid portion A refrigerant circuit has first and second pressure monitoring points. A load based on a point-to-point differential pressure, which is a differential pressure between the pressure at the first and second pressure monitoring points, is applied to the valve body. At least one of a load based on a DS differential pressure, which is a differential pressure between the pressure in a discharge pressure zone and the pressure in a suction pressure zone, and a load based on a CS differential pressure, which is a differential pressure between the pressure in the control pressure chamber and the pressure in the suction pressure zone, acts on the valve body in the same direction as the direction of the load applied to the valve body based on the point-to-point differential pressure.

Abstract: A variable displacement swash plate compressor is provided with a housing, a drive shaft, a swash plate, a link mechanism, a piston, a conversion mechanism, an actuator, and a control mechanism. The housing includes a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore. The actuator includes a movable body coupled to the swash plate, a fixed body fixed to the drive shaft, and a control pressure chamber defined by the movable body and the fixed body. The movable body includes a circumferential wall extending in a direction along a rotational axis and surrounding the fixed body, which includes a guide portion projecting in an axial direction along an inner surface of the circumferential wall. The movable body contacts the guide portion to restrict inclination of the movable body relative to the drive shaft that is greater than or equal to a predetermined amount.

Abstract: A double-headed piston type swash plate compressor has a first abutting portion provided between a first housing member and a first cylinder block and a second abutting portion provided between a second housing member and a second cylinder block. The first abutting portion is located inside a first circumcircle of the group of first cylinder bores and causes the first housing member and the first cylinder block to make metal-to-metal contact. The second abutting portion is located inside a second circumcircle of the group of second cylinder bores and causes the second housing member and the second cylinder block to make metal-to-metal contact.

Abstract: A mobile body and a swash plate are coupled to each other via a columnar coupling pin provided on an outer peripheral part of the swash plate. An insertion hole through which the coupling pin is passed is formed in the swash plate. The insertion hole has a guide surface for guiding the coupling pin and for changing the inclination angle of the swash plate following movement of a mobile body to the axial direction of a rotation shaft. The guide surface has a flat surface part which is inclined to a moving direction of the mobile body. The flat surface part is set such that a perpendicular line of the flat surface part and an axial line of the rotation shaft cross in a region surrounded by a sliding part, viewed from a direction orthogonal to both an axial direction of the rotation shaft and a first direction.

Abstract: In a compressor according to the present invention, an actuator is arranged in a swash plate chamber in a manner rotatable integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism includes a bleed passage, a supply passage, and a control valve. The control mechanism is capable of changing the pressure in the control pressure chamber to move the movable body. When the pressure in the control pressure chamber exceeds the pressure in the swash plate chamber, the inclination angle of the swash plate with respect to the rotation axis of the drive shaft increases.

Abstract: A compressor includes an actuator. The actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism is provided that changes the pressure in the control pressure chamber to move the movable body. The movable body is arranged such that, when the pressure in the control pressure chamber is raised, the movable body pulls the swash plate to increase the inclination angle of the swash plate.

Abstract: In a compressor according to the present invention, an actuator is arranged in a swash plate chamber in a manner rotatable integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. A control mechanism includes a bleed passage, a supply passage, and a control valve. The control mechanism is capable of changing the pressure in the control pressure chamber to move the movable body. The movable body opposes the lug arm with a swash plate arranged between the movable body and the lug arm.

Abstract: A variable displacement swash plate type compressor having high controllability and capable of exhibiting high mounting performance and securing sufficient compression capacity is provided. The compressor of the present invention comprises a first cylinder block and a second cylinder block, and an actuator. The actuator includes an actuator main body and a control pressure chamber. A first cylinder bore and a first storage chamber are formed in the first cylinder block. A second cylinder bore and a second storage chamber are formed in the second cylinder block. The first cylinder bore is formed to have a diameter smaller than the diameter of the second cylinder bore.

Abstract: Provided is a compressor, in which the inclination angle of a swash plate is changed by an actuator, ensuring stability on a product-by-product basis while realizing reduction in size. In the compressor, when pressure in a control pressure chamber increases, a movable body moves toward a flange. At this time, the movable body pulls the opposite end side of a swash plate rearward in a swash plate chamber via first and second pulling arms. A link mechanism permits increase of the inclination angle of the swash plate until reaching a maximum value. When the pressure in the control pressure chamber reaches a required control pressure, a rear wall of the movable body which has moved rearward in the swash plate chamber abuts a front face of the flange. This makes it possible in this compressor to restrict the maximum value of the inclination angle of the swash plate.

Abstract: A variable displacement swash plate compressor includes a housing, drive shaft, first and second radial bearings, swash plate, and actuator. The actuator includes a movable body and fixed body. The movable body includes a main portion and circumferential wall. The main portion includes an insertion hole. The housing includes an accommodation wall. A first clearance exists between the circumferential wall and fixed body. A second clearance exists between the drive shaft and wall of the insertion hole. A third clearance exists between the circumferential wall and accommodation wall. A fourth clearance exists between the drive shaft and first radial bearing. A fifth clearance exists between the drive shaft and second radial bearing. The first and second clearances differ in size. The sum of the third clearance and the smaller one of the first and second clearances is larger than the fourth and fifth clearances.

Abstract: A fourth pin that slides on a rotary shaft is provided to a swash plate. A guiding surface for guiding the fourth pin is provided to the rotary shaft. The fourth pin is guided by the guiding surface, the swash plate is supported by the rotary shaft via the fourth pin, and a force having a component in a direction orthogonal to the direction of movement of a movable body acting on the swash plate is thereby reduced. Accordingly, there is a reduction in the force, which has a component in a direction orthogonal to the direction of movement of the movable body, acting on a coupling section of the movable body via a third pin from the swash plate. As a result, when the inclination of the swash plate is changed, unwanted tilting of the movable body relative to the direction of movement is suppressed.

Abstract: A variable displacement swash plate type compressor includes a rotary shaft, a swash plate, and an actuator, which changes the inclination angle of the swash plate. The actuator includes a partition body and a movable body, which moves in a direction along the rotational axis of the rotary shaft. The movable body includes a guide surface, which changes the inclination angle of the swash plate, and a sliding portion, which slides on the rotary shaft or on the partition body. When viewed from a direction that is perpendicular to the direction in which the rotational axis of the rotary shaft extends and perpendicular to a first direction, the guide surface is configured such that a perpendicular line or a normal line to the guide surface intersects with the rotational axis of the rotary shaft in a zone surrounded by the sliding portion.

Abstract: Provided is a compressor, in which discharge capacity is changed by an actuator, exhibiting high controllability while realizing reduction in size. In the compressor, a movable body includes a rear wall, a circumferential wall, and a coupling mechanism. The coupling mechanism includes a first arm provided with a first pulling point and a second arm provided with a second pulling point. In the compressor, when the inclination angle of a swash plate is increased, the movable body pulls the swash plate via the first and second arms. At this time, in the compressor, pulling force can be applied at two points, i.e., at the first pulling point and the second pulling point. Consequently, in the compressor, even when the size of the rear wall and the circumferential wall is increased, the rigidity of the first and second arms can be made lower.

Abstract: A swash plate type variable displacement compressor includes a housing having therein a suction chamber, a discharge chamber a swash plate chamber and a cylinder bore. The compressor further includes a drive shaft, a swash plate and a link mechanism provided between the drive shaft and the swash plate. The compressor further includes a piston, a conversion mechanism, an actuator and a control mechanism. The actuator includes a partitioning member and a moving member, and a pressure control chamber formed therebetween. A support member is fitted on the drive shaft, and the contact of the support member with the moving member determines maximum inclination angle of the swash plate. A thrust bearing supports a thrust force. The support member includes a cylindrical portion that projects beyond the one end of the drive shaft. The position of the cylindrical portion is adjustable in the direction of the drive shaft.

Abstract: A compressor includes an actuator. The actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. With reference to the swash plate, the actuator is located in a region in which a first cylinder bore is located. The actuator includes a rotation body fixed to the drive shaft, a movable body, and a control pressure chamber. A link mechanism is located between the drive shaft and the swash plate. As the inclination angle of the swash plate is changed, the link mechanism moves the top dead center position of a first head by a greater amount than the top dead center position of a second head.

Abstract: In a compressor, a link mechanism, which allows change of the inclination angle of the swash plate, is arranged between the drive shaft and the swash plate. An actuator is arranged in a swash plate chamber, while being rotational integrally with a drive shaft. The actuator includes a rotation body, a movable body, and a control pressure chamber. The swash plate has a fulcrum, which is coupled to the link mechanism, and a point of application, which is coupled to the movable body. The drive shaft is located between the fulcrum and the point of application.

Abstract: A swash plate type variable displacement compressor includes a housing in which a suction chamber, a discharge chamber, a swash plate chamber, and a cylinder bore are formed, a drive shaft, a swash plate, an actuator, and a control mechanism that controls the actuator. A pressure regulation chamber is formed in the housing. The actuator includes a control pressure chamber. The control mechanism includes a control passage that connects together the discharge chamber, the pressure regulation chamber, and the control pressure chamber, and a control valve that, by adjusting the degree of opening of the control passage, changes the pressure in the control pressure chamber to allow the movable body to move. Refrigerant in the discharge chamber flows into the control pressure chamber via the pressure regulation chamber. The pressure regulation chamber functions as a muffler that reduces the pulsation of the refrigerant.

Abstract: A compressor includes a swash plate rotated with a drive shaft in a swash plate chamber, a link mechanism that changes an inclination angle of the swash plate, an actuator rotated integrally with the drive shaft, and an actuator control mechanism. The actuator includes a partitioning body fitted to the drive shaft in the swash plate chamber, a movable body that is coupled to the swash plate and moved relative to the partitioning body along the axis of the drive shaft, and a control pressure chamber, the pressure of which moves the movable body. The control mechanism changes the pressure of the control pressure chamber to move the movable body. The swash plate includes a fulcrum point, coupled to the link mechanism, and an action point, coupled to the movable body. The fulcrum point and the action point are located at opposite sides of the drive shaft.

Abstract: An actuator of a compressor includes a partitioning body, which is rotatable integrally with a drive shaft and loosely fitted to the drive shaft in the swash plate chamber, a movable body, which is coupled to a swash plate and movable relative to the partitioning body along the axis of the drive shaft, and a control pressure chamber, the pressure of which moves the movable body. A control mechanism changes the pressure of the control pressure chamber to move the movable body. A link mechanism shifts a top dead center of a first head of a piston over a longer distance than a top dead center of a second head of the piston when the inclination angle of the swash plate changes. The actuator is located at the same side as the first cylinder bore, which accommodates the first head, as viewed from the swash plate.