Abstract: A variable displacement type swash plate compressor includes a housing having therein a suction chamber, a discharge chamber, a control pressure chamber, a shaft hole, and cylinder bores. The compressor further has a drive shaft, a swash plate, an inclination angle changing mechanism, pistons, introduction passages, and a valve mechanism. The valve mechanism includes a valve element is disposed in a passage connecting the control pressure chamber and the suction chamber. The valve element is integrally rotatable with the drive shaft and axially movable by a pressure difference across the valve element. An opening of the residual gas bypass passage is changed by the axial movement of the valve element. The valve element selectively connects and disconnects the introduction passages with the residual gas bypass passage.

Abstract: A variable displacement type swash plate compressor includes a housing having therein a suction chamber, a discharge chamber, a control pressure chamber, a shaft hole, and cylinder bores. The compressor further has a drive shaft, a swash plate, an inclination angle changing mechanism, pistons, introduction passages, and a valve mechanism. The valve mechanism includes a valve element is disposed in a passage connecting the control pressure chamber and the suction chamber. The valve element is integrally rotatable with the drive shaft and axially movable by a pressure difference across the valve element. An opening of the residual gas bypass passage is changed by the axial movement of the valve element. The valve element selectively connects and disconnects the introduction passages with the residual gas bypass passage.

Abstract: A double-headed piston type swash plate compressor includes a housing and a rotary shaft. The housing defines a swash plate chamber and includes a cylinder block, a front housing member coupled to a front end of the cylinder block, and a rear housing member coupled to a rear end of the cylinder block. The rotary shaft is supported by the housing. A protrusion is provided in a suction chamber of the rear housing member and protrudes toward an opening of an axial passage formed in the rotary shaft. A restrictor through which refrigerant passes when flowing from the suction chamber to the axial passage is formed between the protrusion and the rear end of the rotary shaft. The protrusion has a distal end sized such that the distal end can be inserted in the opening of the axial passage.

Abstract: A swash plate type compressor includes a drive shaft, a swash plate, a piston, a cylinder block, a housing, a cylinder bore, a compression chamber, suction and discharge chambers and first and second thrust bearings. The cylinder bore is formed in the cylinder block and receiving therein the piston engaged with the swash plate mounted on the drive shaft. The compression chamber is defined in the cylinder bore by the piston so as to be communicable with the suction and the discharge chambers formed in the housing. The first and the second thrust bearings are disposed on opposite sides of the swash plate. The drive shaft extends through the cylinder block and supported in a thrust direction by the first and the second thrust bearings, and either one of the first and the second thrust bearings is disposed outside the cylinder block and between the housing and the drive shaft.