Patent ID: 6523571
Filing Date: 2003-02-25
Classification: F04B,F16K,Y10T

Abstract:
A valve apparatus of a hermetic compressor, comprising: a cylinder block in which a compressing chamber is formed; a valve plate which is disposed between a cylinder block and the cylinder head coupled to a side of the cylinder block, the valve plate formed with a suction port and a discharge port; a discharge valve of which one end is fixed to the valve plate and the other end constitutes a free end arranged to open and close the discharge port in open and closed positions, respectively, of the discharge valve; and a discharge backer which is outwardly curved from a clamping end thereof toward its free end to restrict an operating width of the discharge valve, characterized in that the discharge backer is provided with a rigid protrusion structure formed as an integral part of the discharge backer and projecting toward the discharge valve to prevent the discharge valve from being closely contacted with the discharge backer, wherein a portion of the protrusion structure is in constant contact with the discharge valve in both the open and closed positions thereof and forms a fulcrum for the discharge valve, the valve plate configured wherein the free end thereof contacts the discharge backer when the discharge valve is in its open position.