Reduced friction vane design for rotary compressors

Details Reduced friction vane design for rotary compressors Reduced friction vane design for rotary compressors

1988-12-27

1990-03-27

Smith, Leonard E.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working fluid passage in inner working or reacting member

418225, F01C 102

Patent

active

049116240

ABSTRACT:
An arrangement reduces friction between the sliding vane and rolling piston of a rotary compressor. In particular, a roller is built into a cavity at the tip of the vane. The roller provides rolling contact with the rolling piston so as to minimize friction between the vane tip and the rolling piston. An oil feed hole is provided in the cavity so as to feed oil onto the roller and, by way of the roller, to the external surface of the rolling piston. The reduction in friction reduces heat and, thereby reduces oil degradation. The result is less noise and less likelihood of mechanical breakdown.

REFERENCES:
patent: 3450108 (1967-06-01), Rich
patent: 3891358 (1975-06-01), Ladusaw
patent: 4672813 (1987-06-01), David
Sano et al., 1984 International Compressor Engineering Conference, "Analysis of Hermetic Rolling Piston Type Compressor Noise, and Countermeasures", pp. 242-250, 1984.

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