Patent ID: 8328543

Claim:
A compressor apparatus for compression of fluid, comprising: a housing; scroll compressor bodies in the housing including a first scroll body and a second scroll body, the first and second scroll bodies having respective bases and respective scroll ribs that project from the respective bases and which mutually engage, the second scroll body being moveable relative to the first scroll for compressing fluid through a discharge port; a high pressure chamber in the housing arranged to receive compressed fluid from the scroll compressor bodies; and a check valve having a check valve chamber interposed between the high pressure chamber and the discharge port, the check valve including a valve disc and a retainer retaining the valve disc in the valve chamber, the valve disc movable between a valve seat in a closed position and the valve retainer in an open position, and wherein the valve disc comprises a curved member having an edge that creates a circular contact with the retainer and includes a relieved portion facing the retainer.