Rotary compressor with vane slot pressure groove

Details Rotary compressor with vane slot pressure groove Rotary compressor with vane slot pressure groove

1985-10-25

1986-12-16

Vrablik, John J.

Rotary expansible chamber devices

Methods

418 63, 418 94, 418243, 291564R, 29557, F04C 1800, F04C 2902, B23P 1304

Patent

active

046294031

ABSTRACT:
A rotary hermetic compressor including a compressor cylinder having a bore therein, and a sliding vane slidably disposed in a slot in the compressor wall. The vane extends into the bore of the cylinder for cooperating with a roller to divide the compression chamber into a suction chamber and a discharge chamber. A pressure groove is formed in the wall of the slot on the suction side of the vane. The pressure groove is supplied with oil by means of a passage directly connecting the groove with the oil sump whereby a bias force is applied to the vane to partially offset the unbalanced lateral force on the vane portion extending into the cylinder bore.

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