Rotary compressor

Details Rotary compressor Rotary compressor

1977-01-17

1978-10-03

Vrablik, John J.

Rotary expansible chamber devices

Methods

418 54, 418 90, 418 97, F01C 102, F01C 2104, F01C 2112, F04C 1702

Patent

active

041181573

ABSTRACT:
A rotary compressor having a housing with an epitrochoidal inner boundary and a rotor mounted on an eccentric shaft having an inlet port and exhaust port positioned in the working chambers at a neutral pressure zone where the ullage volume expands to a pressure equal to the pressure at the inlet port. The lubricant for the rotor apex seals is supplied under pressure through a restrictor to a lubricating slot positioned transversely in the epitrochoidal inner boundary of the housing adjacent to the inlet aperture at the neutral pressure zone.

REFERENCES:
patent: 1636486 (1927-07-01), Planche
patent: 3191853 (1965-06-01), Kroeger

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