Patent ID: 7862307

Claim:
A swash plate compressor, comprising: a housing having formed therein cylinders; a drive shaft rotatably supported at said housing; a swash plate that is housed inside a swash plate chamber formed at said housing and rotates as one with said drive shaft; and pistons that slide reciprocally inside the cylinder bore as said swash plate rotates, wherein a front-side intake chamber and a rear-side intake chamber communicating with said swash plate chamber and disposed to the front and to the rear of said swash plate chamber along the axial direction, in which a working fluid to be guided into said cylinders is stored, a front-side outlet chamber and a rear-side outlet chamber disposed to the front and to the rear of said swash plate chamber along the axial direction, in which the working fluid having been compressed by said pistons is stored, a first gas passage and a second gas passage extending along the axial direction, a third gas passage formed substantially symmetrical to said first gas passage relative to a plane containing said drive shaft, a fourth gas passage formed substantially symmetrical to said second gas passage relative to the plane containing said drive shaft and communicating with said second gas passage and an external component that includes an intake port and an outlet port to be connected to piping, are all disposed at said housing; wherein said first gas passage and said third gas passage communicate with said swash plate chamber; wherein said first gas passage and said third gas passage are operative to communicate with said intake port to supply the working fluid into said front-side intake chamber and said rear-side intake chamber; and wherein either said second gas passage or said fourth gas passage is made to communicate with said front-side outlet chamber and said rear-side outlet chamber and said second gas passage or said fourth gas passage, which is not in communication with said outlet chambers, is made to communicate with said outlet port.