Abstract: A collar of a fixed scroll includes a gasket contact surface with which a gasket comes into contact, and a metal contact surface that causes the collar and a compression housing to be in contact and receives the axial force of bolts. The collar has a protruding portion that protrudes in the axial direction relative to the gasket contact surface, and the metal contact surface is disposed on the protruding portion.

Abstract: A compressor includes a rotary shaft, a front rotor including a front rotor surface, an intermediate wall portion including a first wall surface opposed to the front rotor surface in an axial direction, and a vane that is inserted into a vane groove formed in the intermediate wall portion and is moved in the axial direction with rotation of the front rotor. The vane includes a first vane end that is an end in the axial direction and contacts the front rotor surface. The first vane end is curved so as to be convex toward the front rotor surface and extends in the direction perpendicular to the axial direction. The front rotor surface includes a front curving surface curved in the axial direction so as to be displaced in the axial direction in accordance with its angular position.

Abstract: A compressor includes a rotary shaft, a rotating body, which rotates together with the rotary shaft, and a fixed body, which does not rotate together with the rotary shaft. The rotating body has a rotating body surface, and the fixed body has a fixed body surface facing the rotating body surface in the axial direction. The compressor includes a vane, which is inserted in a vane groove provided in the rotating body, and a compression chamber, which is defined by the rotating body surface and the fixed body surface. The vane includes a vane body, which is inserted in the vane groove, and a tip seal, which is movable in the axial direction relative to the vane body.

Abstract: A compressor includes a rotary shaft, a rotating body, a fixed body, a vane, and a compression chamber. The vane has a vane end that contacts the surface of fixed body. The fixed body surface includes two curved surfaces. The curved surface includes a convex surface and a concave surface. The convex surface has a convex surface inner end and a convex surface outer end. The curvature of the convex surface inner end is greater than the curvature of the convex surface outer end. The concave surface has a concave surface inner end and a concave surface outer end. The curvature of the concave surface inner end is greater than the curvature of the concave surface outer end.

Abstract: A compressor includes two rotors opposed to each other in an axial direction, and a vane contacting the rotors. While the vane is moved in the axial direction with rotation of the rotors, the vane is restricted from rotating by a vane groove. The compressor includes compression chambers in which suction and compression of fluid are performed with rotation of the rotors, and a communication mechanism switched between a communicating state in which the compression chambers communicate with each other, and a non-communicating state in which the compression chambers do not communicate with each other.

Abstract: A compressor includes a rotary shaft, a housing in which a suction port through which a suction fluid is drawn in and a discharge port through which a compression fluid is discharged are formed, and that houses the rotary shaft, and compression chambers. The suction fluid is drawn into the compression chambers. Respective volumes of the compression chambers are periodically changed with rotation of the rotary shaft. The phases of volume changes of the compression chambers are mutually shifted. The compressor includes a communication mechanism switched between a communicating state in which the compression chambers communicate with each other, and a non-communicating state in which the compression chambers do not communicate with each other.

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 variable displacement swash compressor includes a partitioning body that is movable along the axis of a drive shaft, a movable body that changes the inclination angle of a swash plate, and a control pressure chamber defined by the partitioning body and the movable body. The movable body is moved by drawing refrigerant in the control pressure chamber from a discharge chamber. The swash plate is configured to contact and move the partitioning body as the inclination angle increases.

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.

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 pressure-acting chamber is defined by a first cylinder block and a spacer. The pressure-acting chamber communicates with a discharge chamber via a supply passage. A load based on the pressure difference between the pressure-acting chamber and a swash plate chamber is applied to a rotary shaft and acts toward a second thrust bearing.

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: A double-headed piston swash plate type compressor includes a rotary shaft, a drive force transmitting member, a tiltable swash plate, a movable body that changes the inclination angle of the swash plate, and a control pressure chamber defined by the movable body and the drive force transmitting member, which are arranged on one side with respect to the swash plate in the axial direction of the rotary shaft. The movable body includes a bottom portion, through which the rotary shaft extends, and a cylindrical portion, which extends from the bottom portion in the axial direction of the rotary shaft to surround the rotary shaft. The cylindrical portion is permitted to move in the axial direction while sliding along a part of the drive force transmitting member, so that the inclination angle of the swash plate is changed in accordance with the internal pressure of the control pressure chamber.

Abstract: A variable displacement swash compressor includes a housing, a drive shaft, a swash plate, a link mechanism, pistons, a conversion mechanism, an actuator, and a control mechanism. The housing includes a suction chamber, a discharge chamber, a swash plate chamber, and cylinder bores. The control mechanism controls the actuator. The actuator includes a partitioning body, a movable body, and a control pressure chamber. At least one of the suction chamber and the swash plate chamber is a low pressure chamber. The control mechanism includes a control passage, which connects the control pressure chamber, the low pressure chamber, and the discharge chamber, and a control valve, which adjusts the open degree of the control passage. The control passage is partially formed in the drive shaft. The movable body increases the inclination angle of the swash plate when the pressure of the control pressure chamber increases.

Abstract: A variable displacement swash compressor includes a housing, a drive shaft, a swash plate, a link mechanism, a piston, a conversion mechanism, an actuator, and a control mechanism. The swash plate is rotatable together with the drive shaft in a swash plate chamber. The conversion mechanism reciprocates the piston in a cylinder bore. The actuator is operative to change the inclination angle of the swash plate. The actuator is rotatable integrally with the drive shaft. The actuator includes a partitioning body, a movable body, and a control pressure chamber. The control mechanism changes the pressure of the control pressure chamber to move the movable body. The movable body and the link mechanism are located at opposite sides of the swash plate.

Abstract: A variable displacement swash plate type compressor includes a rotary shaft, a swash plate, and an actuator. The actuator includes a partition body, a movable body, and a coupling member located radially outward of the rotary shaft of the swash plate. The movable body has a guide surface for changing the inclination angle of the swash plate and a sliding portion that slides on the rotary shaft or the partition body. When viewed in a direction that is perpendicular to a direction in which the rotational axis of the rotary shaft extends and perpendicular to a first direction, the guide surface has a curved shape that is configured such that a normal of the guide surface and the rotational axis of the rotary shaft intersect in a zone surrounded by the sliding portion in the entire range of change in the inclination angle.

Abstract: A swash plate type variable displacement compressor includes, a housing, a swash plate disposed in the housing and having therethrough an insertion hole, a rotary shaft inserted through the insertion hole of the swash plate, a plurality of pistons engaged with the swash plate, and a connecting member disposed between the rotary shaft and the swash plate and connecting the rotary shaft and the swash plate so as to change inclination angle of the swash plate relative to the rotary shaft. A pair of projections are provided in the insertion hole so as to extend toward the rotary shaft and restrict the movement of the swash plate relative to the rotary shaft. The paired projections are spaced away from each other so as not to be in contact with the rotary shaft simultaneously.

Abstract: A variable displacement swash compressor includes a housing, a drive shaft, a swash plate, a link mechanism, a piston, a conversion mechanism, an actuator, and a control mechanism. The swash plate is rotatable together with the drive shaft in a swash plate chamber. The conversion mechanism reciprocates the piston in a cylinder bore. The actuator changes the inclination angle of the swash plate. The actuator is rotatable integrally with the drive shaft. The actuator includes a partitioning body, a movable body, and a control pressure chamber. The control mechanism changes the pressure of the control pressure chamber to move the movable body. The movable body is adapted to pull the swash plate and increase the inclination angle when the pressure of the control pressure chamber increases.

Abstract: A double-headed piston type swash plate compressor includes first and second cylinder blocks, a rotation shaft, a double-headed piston, a crank chamber, a drive force transmission member, a swash plate, a movable body, a control pressure chamber, and a support. The control pressure chamber is defined by the movable body in the housing. The control pressure chamber moves the movable body in the axial direction of the rotation shaft. The support is located on the swash plate and supported by the rotation shaft. The drive force transmission member and the movable body are located at a first side of the swash plate in the axial direction of the rotation shaft, and the support is located at a second side of the swash plate. The drive force transmission member, the movable body, and the support set the inclination angle of the swash plate relative to the rotation shaft.

Abstract: A variable displacement swash plate type compressor includes a rotary shaft, a swash plate, and an actuator capable of changing the inclination angle of the swash plate. The actuator includes a movable body. The movable body includes a sliding portion that slides on the rotary shaft or the lug member and a movable body-side transmission portion that engages with the swash plate at a position radially outward of the rotational axis of the swash plate. The movable body-side transmission portion is configured such that a perpendicular line or a normal to the movable body-side transmission portion and the rotational axis of the rotary shaft intersect with each other in a zone surrounded by the sliding portion when viewed in a direction that is perpendicular to a direction in which the rotational axis of the rotary shaft extends and perpendicular to the first direction.