Patent ID: 6267563
Filing Date: 2001-07-31
Classification: F04B

Abstract:
A variable capacity type compressor comprising:a body comprising a cylinder block having cylinder bores, and a rear housing attached to said cylinder block and having a discharge chamber and a suction chamber for communication with said cylinder bores, said rear housing having a circumferential wall and an outer end surface on the side opposite from said cylinder block;pistons reciprocatingly arranged in the cylinder bores so that the movement of said piston toward said rear housing causes the coolant to be discharged from said cylinder bore into said discharge chamber and the movement of said piston away from said rear housing causes the coolant to be sucked from said suction chamber to said cylinder bore;a rotatable drive shaft having an axis;a motion transmitting device driven by said drive shaft for converting the rotational movement of the drive shaft into the reciprocating movement of the pistons;a control pressure chamber connected to a discharge pressure region by a coolant supply passage and to a suction pressure region by a coolant outlet passage; anda capacity control valve mounted to the rear housing in an inclined position relative to a plane perpendicular to the axis of the rotatable drive shaft, said capacity control valve being arranged in one of said coolant supply passage and said coolant outlet passage to control the pressure in said control pressure chamber to thereby control the capacity of said compressor.