Variable displacement compressor

Details Variable displacement compressor Variable displacement compressor

1996-08-28

1998-05-19

Thorpe, Timothy

Pumps

Three or more cylinders arranged in parallel, radial, or...

184 617, F04B 112

Patent

active

057528098

ABSTRACT:
A cam plate is mounted on a drive shaft in a crank chamber. A plurality of pistons are operably coupled to the cam plate. The rotation of the drive shaft is converted to a linear reciprocal movement to compress and discharge refrigerant gas containing oil mist. An extracting passage extracts the refrigerant gas from the crank chamber to remove an excessive pressure in the crank chamber. The extracting passage is open to an accommodating chamber which receives the refrigerant gas from the passage. A bearing is disposed in the accommodating chamber and receives an axial load acting on the drive shaft. A bolt absorbs an assembly tolerance of the bearing. A first protuberance is provided on the bearing protruding in a radial direction with respect to the drive shaft so as to become aligned with the passage. The first protuberance engages an inner surface of the accommodating chamber to prevent rotation of the bearing.

REFERENCES:
patent: 4664604 (1987-05-01), Terauchi
patent: 5364232 (1994-11-01), Kimura et al.

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