Oil mist filter in a variable displacement compressor

Details Oil mist filter in a variable displacement compressor Oil mist filter in a variable displacement compressor

1997-01-28

1999-03-16

Thorpe, Timothy S.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417313, 4174239, 92 78, F04B 126

Patent

active

058821805

ABSTRACT:
A compressor having a cam plate disposed in a crank chamber and mounted on a drive shaft. The cam plate is tiltable between a maximum inclined angle position and a minimum inclined angle position with respect to a plane perpendicular to an axis of the drive shaft according to a differential pressure in the crank chamber and in a cylinder bore. The cam plate varies the stroke of a piston based on an inclination thereof to control the displacement of the compressor. A supply passage connects a discharge chamber with the crank chamber to deliver the gas from the discharge chamber to the crank chamber. The supply passage has an inlet that is open in the discharge chamber. A control valve is disposed midway on the supply passage. The control valve adjusts the amount of the gas introduced into the crank chamber from the discharge chamber through the supply passage to control the pressure in the crank chamber. A filter is disposed at the inlet of the supply passage to filter the oil. The filter captures foreign matter mixed with the oil when the gas containing the oil is introduced into the supply passage from the discharge chamber.

REFERENCES:
patent: 1162851 (1915-12-01), Dewson
patent: 5242274 (1993-09-01), Inoue
patent: 5636973 (1997-06-01), Sonobe et al.

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