Patent ID: 6261073
Filing Date: 2001-07-17
Classification: F04C

Abstract:
A compressor for a refrigeration system, said compressor comprising:a cylinder having a shape substantially resembling a circular cylinder;a drive shaft extended through the cylinder;a bearing member joined to an end of the cylinder, having a flange provided with a discharge port, and a bearing part supporting the drive shaft; anda discharge valve element held on the flange to open and close the discharge port;wherein the flange of the bearing member is provided with a recess corresponding to the discharge valve element, and a valve seat formed by raising a portion of the bottom surface of the recess around the discharge port, the ratio H/A.gtoreq.0.07, where H is thickness of a bottom wall of the recess and A is width of the recess in a longitudinal section taken on line passing a center axis of the bearing part and a center axis of the discharge port, and the ratio T/B.ltoreq.0.3, where T is thickness of the valve seat and B is diameter of the discharge port.