Rotary compressor with discharge chamber pressure relief groove

Details Rotary compressor with discharge chamber pressure relief groove Rotary compressor with discharge chamber pressure relief groove

1996-12-09

1998-10-20

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418 63, 418183, F04C 18356

Patent

active

058237550

ABSTRACT:
The annular piston of a rolling piston compressor coacts with a groove in valving action such that the groove serves as a supplemental discharge flow area but gas therein is prevented from constituting part of the suction flow. The groove may be in the motor end bearing and/or pump end bearing and permits flow from the compression chamber to the interior of the piston which is in fluid communication with the interior of the shell while the compression chamber is undergoing discharge.

REFERENCES:
patent: 292898 (1884-02-01), D'Andree
patent: 3081707 (1963-03-01), Marshall

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