Hermetic compressor with start-up lubrication

Details Hermetic compressor with start-up lubrication Hermetic compressor with start-up lubrication

1997-06-26

1999-03-23

Denion, Thomas E.

Lubrication

Systems

With machine starting means

184 618, 92153, F01M 900

Patent

active

058847278

ABSTRACT:
A hermetic compressor is provided. The compressor comprises: a hermetic casing; a driving motor having a stator, a rotor and a rotating shaft rotating with the rotor and having a journal formed thereon; a compressing portion driven by the driving motor for compressing a compressible medium; and a bearing for rotatably supporting the journal of the rotating shaft, wherein an oil remaining recess for containing a lubricating oil is formed on the journal when the compressor stops its operation and for supplying the oil between the journal and the bearing when the compressor starts its operation. Accordingly, the oil can be suitably supplied between the journal and the bearing when the compressor restarts, thereby preventing non-lubricating friction between the journal and the bearing.

REFERENCES:
patent: 3049285 (1962-08-01), Doeg
patent: 3674382 (1972-07-01), Kubota et al.
patent: 3767013 (1973-10-01), Caldwell
patent: 3848702 (1974-11-01), Bergman

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