Slant plate type compressor with variable displacement mechanism

Details Slant plate type compressor with variable displacement mechanism Slant plate type compressor with variable displacement mechanism

1989-10-23

1992-03-03

Bertsch, Richard A.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417270, F04B 4900

Patent

active

050927418

ABSTRACT:
A slant plate type compressor with a capacity or displacement adjusting mechanism is disclosed. The compressor includes a housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism which includes a member having a surface with an adjustable incline angle. The incline angle is controlled by the pressure in the crank chamber. The pressure in crank chamber is controlled by control mechanism which comprises a passageway communicating between the crank chamber and a suction chamber, a first valve device to control the closing and opening of the passageway and a second valve device to control pressure in an actuating chamber. The first valve device includes a bellows valve element and a valve shifting element. The valve shifting element of which one end is exposed in the actuating chamber is coupled to the bellows to apply a force to the bellows at another end and thereby shift a control point of the bellows in response changes in the actuating chamber pressure.

REFERENCES:
patent: 4533299 (1985-08-01), Swain et al.
patent: 4621983 (1986-11-01), Thomas et al.
patent: 4702677 (1987-10-01), Takenara et al.
patent: 4732544 (1988-03-01), Kurosawa et al.
patent: 4875832 (1989-10-01), Suzuki et al.

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