Bearing structure for an air compressor

Details Bearing structure for an air compressor Bearing structure for an air compressor

1983-08-05

1985-01-22

Vrablik, John J.

Rotary expansible chamber devices

With frangible drive connection or clutch

418270, F01C 2102

Patent

active

044949170

ABSTRACT:
A compressor rotary mounting shaft for rotatably mounting a compressor rotor is supported by a bearing surface defined by a bearing surface hole through a compressor cylinder block. A portion of the rotary mounting shaft is tapered, and the tapered portion of the rotary mounting shaft confronts a portion of the bearing surface which is cooled by refrigerant gas and which is cooled by refrigerant gas and which contracts during operating of the compressor. The tapered portion of the rotary mounting shaft ensures that sufficient clearance remains between the rotary mounting shaft and the portion of the bearing surface hole that contracts during compressor operation so as to allow the formation of a lubricating oil film to prevent shaft locking due to thermal contraction of the bearing surface hole or eccentric driving of the rotary mounting shaft.

REFERENCES:
patent: 3075503 (1963-01-01), Kimsey
patent: 3223044 (1965-12-01), Adams
patent: 3240158 (1966-03-01), Brundage
patent: 3279325 (1966-10-01), Graubins
patent: 3834846 (1974-09-01), Linder

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