Rotary compressor with clearance volumes to offset pulsations

Details Rotary compressor with clearance volumes to offset pulsations Rotary compressor with clearance volumes to offset pulsations

1987-12-31

1989-12-05

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 63, 418 75, 418150, 418181, 417312, F04C 18356, F04C 2906

Patent

active

048849561

ABSTRACT:
A rotary compressor includes a top clearance volume formed between a cylinder chamber and at least one delivery valve. Another top clearance volume, in communication with the cylinder chamber, produces a reverse flow of compressed fluid which generates pulsations adapted to offset a high frequency component of pulsations generated in the cylinder chamber by compressed fluid reversely flowing from the first top clearance volume to the cylinder chamber. Thereby the high frequency component of pulsations generated in the cylinder chamber is eliminated, and a low-noise rotary compressor is provided.

REFERENCES:
patent: 4204816 (1980-05-01), Bein
patent: 4537567 (1985-08-01), Kawaguchi et al.
patent: 4730996 (1988-03-01), Akatsuchi et al.
Analysis of Hermetic Rolling Piston Type Compressor Noise, and Counter-Measures, by Kiyoshi Sano et al., pp. 242-250.

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