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

1990-07-06

1992-01-14

Bertsch, Richard A.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417270, F04B 126

Patent

active

050805614

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 relative pressure between the crank and suction chambers. The relative pressure is controlled by a 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 the pressure in an actuating chamber. The first valve device includes a bellows and a valve shifting element coupled to the bellows. The valve shifting element includes a first surface which receives pressure in the actuating chamber and a second surface which receives discharge pressure in order to apply a force to the bellows at another and thereby shift the response pressure of the bellows in response to changes in the actuating chamber pressure and changes in the discharge pressure.

REFERENCES:
patent: 4174191 (1979-11-01), Roberts
patent: 4428718 (1984-01-01), Skinner
patent: 4702677 (1987-10-01), Takenaka et al.
patent: 4723891 (1988-02-01), Takenaka et al.
patent: 4732544 (1988-03-01), Kurosawa
patent: 4747753 (1988-05-01), Taguchi
patent: 4780059 (1988-10-01), Taguchi
patent: 4842488 (1989-06-01), Terauchi
patent: 4913626 (1990-04-01), Terauchi
patent: 4913627 (1990-04-01), Terauchi
patent: 4940393 (1990-07-01), Taguchi
patent: 4960367 (1990-10-01), Terauchi

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