Patent ID: 7284971

Claim:
A hermetic compressor comprising a compression chamber for compressing a refrigerant, a valve unit including a valve plate formed with a discharge port for use in the discharge of the compressed refrigerant from the compression chamber, a discharge valve for opening or closing the discharge port, and a stopper for restricting an opening degree of the discharge valve, wherein the valve unit further includes: a first protrusion extending outwardly from the discharge valve; and a second protrusion extending from the stopper toward the first protrusion, and elastically supporting the first protrusion, whereby the first and second protrusions achieve a gradual opening operation of the discharge valve, and wherein the discharge valve includes: a fixing portion to be fixed to the valve plate; and a body portion extending from the fixing portion and configured to cover the discharge port; and the first protrusion extends outwardly from the body portion.