Vane guide apparatus of a rotary compressor

Details Vane guide apparatus of a rotary compressor Vane guide apparatus of a rotary compressor

1996-07-16

1997-08-26

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

418256, F04C 18356

Patent

active

056605404

ABSTRACT:
A rotary compressor includes a stationary member composed of a plate member, and a downwardly projecting shaft defining a first axis. A roller is freely rotatably mounted on the shaft. A cylinder is rotatably mounted below the plate element with the roller disposed therein. The cylinder is rotatably driven about a second axis parallel to and spaced from the first axis. Vanes are mounted in radial slots formed in the cylinder for radial sliding movement relative to the cylinder to divide the cylinder into fluid-compressing and fluid-discharging chambers. The plate element includes an annular groove, and a ring is loosely mounted in the groove for rotation relative to the plate member about the first axis. A radially outer end of each vane includes a protuberance mounted in a respective slot formed in the ring. The ring thus functions as a guide for positioning radially inner ends of the vanes in close proximity to the outer periphery of the roller without being strongly biased thereagainst, thereby minimizing frictional wear of those inner ends. A film of oil is interposed between the roller and each vane.

REFERENCES:
patent: 155160 (1874-09-01), Klein
patent: 502818 (1893-08-01), Holland

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