Rotary compressor with reduced lubrication sensitivity

Details Rotary compressor with reduced lubrication sensitivity Rotary compressor with reduced lubrication sensitivity

1995-12-07

1997-09-30

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

With relatively movable partition member

418178, 428408, 428634, F04C 18356

Patent

active

056720548

ABSTRACT:
Lubrication deficiencies related to the use of synthetic lubricants such as POE oils in refrigeration compressors can be mitigated by providing a diamond-like-carbon coating on a member subject to wear due to lubrication deficiencies. Specifically, the tip of the vane of a rotary compressor is coated with a diamond-like-carbon coating made up of alternating layers of tungsten carbide and a lubricious material 0.5 to 5.0 microns thick.

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