Compressor

Abstract

A reed valve for opening and closing a discharge port of a compressor mechanism is provided with a protruding part which is formed at a distal end thereof to come in and out of the discharge port. The shape of the discharge port and the shape of the reed valve are determined such that flow passage areas S 0 , S 1 and S 2 at different parts of the discharge port satisfy S 2≧ S 1≧ S 0 when the reed valve is lifted to a maximum level. Accordingly, a refrigerant is discharged through the discharge port without reducing the amount of flow of the refrigerant, thereby reducing loss of pressure.

1 . A compressor comprising: 
 a compressor mechanism configured to compress fluid, the compressor mechanism including a discharge port; and    a reed valve coupled to the compressor mechanism to open and close the discharge port of the compressor mechanism, the read valve including a flat part and a protruding part formed at a distal end of the flat part to come in and out of the discharge port,    the shape of the discharge port and the shape of the reed valve being dimensioned to satisfy      S 2 ≧S 1 ≧S 0 ,    wherein where S 0  is an opening area of an inlet of the discharge port,    S 1  is a smallest cross sectional area of a flow passage formed between the protruding part and the discharge port when the reed valve is lifted to a maximum level, and    S 2  is a smallest cross sectional area of a flow passage formed between the flat part and an outer periphery of an outlet of the discharge port when the reed valve is lifted to the maximum level.    
   
   
       2 . The compressor of  claim 1 , wherein 
 the discharge port is tapered from the outlet to the inlet.    
   
   
       3 . The compressor of  claim 1 , wherein 
 a seat is formed at the outer periphery of the outlet of the discharge port such that the seat contacts the flat part.    
   
   
       4 . The compressor of  claim 2 , wherein 
 a seat is formed at the outer periphery of the outlet of the discharge port such that the seat contacts the flat part.