Scroll machine with reverse rotation protection

Details Scroll machine with reverse rotation protection Scroll machine with reverse rotation protection

1996-11-21

1998-09-01

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 554, 418270, F01C 104, F01C 1908, F01C 2116

Patent

active

058001417

ABSTRACT:
A scroll compressor includes a discharge valve assembly for blocking compressed refrigerant flow from the discharge chamber through the scroll members. This blocking of flow results in the elimination of reverse rotation at shut down. The discharge valve assembly includes a leakage path which allows a limited amount of refrigerant flow past the discharge valve to eliminate the forming of a vacuum during powered reverse rotation. In one embodiment, a valve located in the leakage path provides a time delay to optimize the performance of the discharge valve assembly.

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