Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent
1992-10-20
1994-02-15
Bertsch, Richard A.
Pumps
Three or more cylinders arranged in parallel, radial, or...
417500, F04B 112
Patent
active
052861732
ABSTRACT:
The housing of a swash plate type compressor includes a suction chamber and a discharge chamber. A plurality of cylinder bores are formed in a cylinder block connected to the housing. A plurality of pistons in corresponding cylinder bores are provided such that each piston reciprocates as a function of the rotation of a rotary shaft. A valve chamber communicates with at least one of the suction chamber and discharge chamber, and is provided between the housing and the cylinder block. The valve chamber is connected to the cylinder bores via respective passages. A rotary valve is accommodated rotatably in the valve chamber. A guide groove is provided in the outer surface of the rotary valve to permit communication between each cylinder bore and the associated passage in at least one of a suction stage and a compression stage of the coolant gas. A gas passage has one of its ends connected to the guide groove, and the other end connected to either the suction chamber or discharge chamber and is provided in the rotary valve. The rotary valve is coupled to the rotary shaft by a connecting member.
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Hidaka Shigeyuki
Kayukawa Hiroaki
Takeichi Toru
Takenaka Kenji
Bertsch Richard A.
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
Koryinyk Peter
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