Nonsymmetric bore contour for rotary compressor

Details Nonsymmetric bore contour for rotary compressor Nonsymmetric bore contour for rotary compressor

1981-08-10

1983-12-06

Smith, Leonard E.

Rotary expansible chamber devices

Working chamber surface expressed mathematically

418255, F04C 1800

Patent

active

044190590

ABSTRACT:
A rotary compressor having a blade slidably carried in a slot in a rotor within the compression cylinder. The opposite ends of the blade are in contact with the cylinder walls at all times, notwithstanding the nonsymmetrical configuration of the cylinder bore. The nonsymmetrical configuration arises from the addition of a cycloidal cam function to the bore equation in the first quadrant and the subtraction thereof from the bore equation in the third quadrant. The cylinder contour resulting from the provision of the cycloidal cam function provides increased operating efficiency in the rotary compressor and allows the length of the transfer slot thereof to be reduced or eliminated so as to reduce recompression volume of the compressor.

REFERENCES:
patent: 986502 (1911-03-01), Roessler
patent: 2278740 (1942-04-01), Roessler
patent: 2347944 (1944-05-01), Fowler
patent: 3499600 (1970-03-01), McGregor
patent: 3642390 (1972-02-01), Ostberg
patent: 3890071 (1975-06-01), O'Brien
patent: 4133617 (1979-01-01), Reynaud

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