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

1988-06-06

1989-06-27

Freeh, William L.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417269, F04B 128

Patent

active

048424889

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 situation 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 and valve device to control the closing and opening of the passageway. The valve device includes a valve element which directly controls the closing and opening of passageway, a first valve control device which controls operation of the valve element in response to pressure in the suction chamber, and a second valve control device which controls a predetermined operating point of the first valve control device. The operation of the second valve control device is controlled in response to changes in conditions external of the compressor.

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European Search Report, EP 87 30 6039.

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