Method for controlling the operation of a variable displacement

Details Method for controlling the operation of a variable displacement Method for controlling the operation of a variable displacement

1988-06-22

1989-06-27

Freeh, William L.

Refrigeration

Automatic control

Responsive to vehicle body motion or traction

62227, 622285, 417 53, 417222, F25B 102, F04B 128

Patent

active

048417360

ABSTRACT:
A method for controlling the operation of a variable displacement refrigerant compressor arranged in a car air-conditioner circuit and driven by a car engine via a solenoid clutch is carried out in a manner such that, when either an air-conditioner OFF signal or an ignition OFF signal is received by a control device having a CPU unit therein prior to a start of a long time stoppage of the car, a displacement varying wobble plate element is always moved angularly to a predetermined position to obtain a minimum displacement condition of the compressor so that the compressor is restarted from the minimum displacement condition when the car is restarted after a long time stoppage thereof.

REFERENCES:
patent: 4492527 (1985-01-01), Swain
patent: 4507932 (1985-04-01), Suzuki
patent: 4533299 (1985-08-01), Swain
patent: 4669272 (1987-02-01), Kawai

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