Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1990-06-18
1992-08-25
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418270, 137220, 137528, 13753317, 417902, F04C 1804, F04C 2900, F16K 1502, F16K 2704
Patent
active
051414201
ABSTRACT:
A scroll type hermetic compressor is disclosed which incorporates an improved disc type check valve in the discharge conduit exiting from the compressor shell. The check valve operates to prevent return of high pressure refrigerant which may cause reverse movement of the orbiting scroll upon shut down of the compressor.
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Copeland Drawing 010-0029-00, Jun. 1987.
Copeland Corporation
Vrablik John J.
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