Variable displacement compressor

Details Variable displacement compressor Variable displacement compressor

1988-09-16

1989-12-05

Freeh, William L.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

92 122, F04B 128

Patent

active

048849529

ABSTRACT:
A variable displacement compressor comprises a plurality of pistons revived in a plurality of through-holes formed in a cylinder block arranged in a fixed relationship with a rotary shaft journaled by a stationary part, and a piston drive mechanism including a wobble plate supported on the rotary shaft for wobbling movement. The wobble plate is arranged in opposition to the cylinder block and rotatably holding one ends the pistons. The piston drive mechanism further includes a pair of drive pins having one end portion secured to the cylinder block and extending in parallel with the rotary shaft and the other end portion slidably engaging the wobble plate through spherical bearings, a swash plate having a surface making a sliding contact with a back surface of the wobble plate and supported at one part thereof for an inclination movement in an axial direction of the rotary shaft, and a piston mechanism operatively connected to the swash plate to vary an inclination angle of the latter to thereby vary an inclination angle of the wobble plate without causing rotation of the swash plate.

REFERENCES:
patent: 2405006 (1946-07-01), Ashton
patent: 3010403 (1961-11-01), Zubaty
patent: 3129702 (1964-04-01), Arbanas
patent: 4297085 (1981-10-01), Brucken
patent: 4778348 (1988-10-01), Kikuchi
patent: 4782712 (1988-11-01), Takahashi
patent: 4801248 (1989-01-01), Tojo

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