Hermetically sealed electric motor compressor

A hermetically sealed electric motor compressor, comprising:

• a hermetically sealed casing housing a reciprocating compressor unit having a discharge port for compressing a working fluid,
• a valve assembly opening and closing said discharge port,
• a discharge port unit mounted to the discharge side of the valve assembly including a base plate having a projection,
• a reed valve assembly comprising a reed valve and a valve backer mounted behind the reed valve,
• said reed valve including a fixed end including opposite fulcrums projecting laterally of the reed valve, an intermediate portion extending from the fixed end obliquely to a straight line joining the opposite fulcrums and an operating end adjoined to the front end of the intermediate portion for opening and closing the discharge port,
• said valve backer including a fixed end having substantially the same shape as the fixed end of the reed valve, an intermediate portion extending from the fixed end of the valve backer in the same direction as the intermediate portion of the reed valve, a front end adjoined to the front end of the intermediate portion, said intermediate portion having a width narrower along the direction from the fixed end to the front end, and said front end of the valve backer having a width narrower than the operating end of the reed valve,
• a valve seat defining a recess receiving said reed valve assembly, and
• an elastic gasket, the end of the reed valve assembly being held in the valve seat recess by being pushed via the gasket against said projection of the base plate of the discharge port unit.