Rotary compressor comprising improved rotor lubrication system

Details Rotary compressor comprising improved rotor lubrication system Rotary compressor comprising improved rotor lubrication system

1976-08-23

1978-04-25

Vrablik, John J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Non-working fluid directed to groove

418 81, 418 82, 418 93, 418 98, 418100, F01C 2104, F04C 2902

Patent

active

040860400

ABSTRACT:
A rotor is eccentrically mounted in a bore of a housing and formed with radial slots in which vanes are slidably retained. An oil passageway leads from an oil sump through the radially inner portions of the slots to a fluid inlet passageway, the oil sump communicating with an oil separation chamber which constitutes part of a fluid outlet passageway. The high pressure in the oil separation chamber forces oil through the oil passageway to lubricate the vanes and urge the vanes into sealing engagement with the inner wall of the bore. Oil sucked from the inlet passageway into the bore and entrained in the working fluid lubricates the outer ends of the vanes and flows into the oil separation chamber. The fluid outlet passageway is formed so that the fluid flow path reverses direction in the oil separation chamber. The oil entrained in the fluid is unable, due to its higher density and inertial force, to negotiate the reversal of direction, is thereby separated from the fluid and returned to the oil sump.

REFERENCES:
patent: 2856119 (1958-10-01), Smith
patent: 3385514 (1968-05-01), Kilgore et al.

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