Valve assembly of reciprocating compressor

Abstract

In a valve assembly of a reciprocating compressor including a piston having a valve seat portion ( 26 ) at the front and plural suction ( 24 ) holes for sucking a fluid at regular intervals in the circumferential direction; and a suction valve ( 20 ) arranged on the valve seat portion ( 26 ) to perform opening/closing operation of the suction holes ( 24 ), wherein the suction valve ( 20 ) includes a fixed portion fixed to the valve seat portion ( 26 ) of the piston; an open/close portion formed at the outside of the fixed portion to perform opening/closing operation of the suction holes ( 24 ); and plural neck ( 32 ) portions formed between the fixed portion ( 28 ) and the open/close portion ( 30 ) at regular intervals. Accordingly, by minimizing fatigue occurrence according to continued opening/closing operation by reducing an opening angle of the valve, damage or breakage of the valve can be minimized.

1 . A valve assembly of a reciprocating compressor comprising: 
 a piston having a valve seat portion at the front and plural suction holes for sucking a fluid at regular intervals in the circumferential direction; and    a suction valve arranged at the valve seat portion to perform opening/closing operation of the suction holes;    wherein the suction valve includes a fixed portion fixed to the valve seat portion of the piston; an open/close portion formed at the outside of the fixed portion to perform opening/closing operation of the suction holes; and plural neck portions formed between the fixed portion and the open/close portion at regular intervals.    
   
   
       2 . The valve assembly of  claim 1 , wherein the fixed portion formed between the central portion of the suction valve and the center of the valve seat portion of the piston.  
   
   
       3 . The valve assembly of  claim 1 , wherein the neck portion is formed between space portions formed by cutting portions between the fixed portion and the open/close portion at regular intervals.  
   
   
       4 . The valve assembly of  claim 3 , wherein the space portions are formed as elliptic shapes symmetrical with each other.  
   
   
       5 . The valve assembly of  claim 1 , wherein the neck portion is radially formed between space portions formed by cutting partial portions between the fixed portion and the open/close portion.  
   
   
       6 . The valve assembly of  claim 5 , wherein the space portions are formed by cutting portions between the fixed portion and the open/close portion as circular band shapes.  
   
   
       7 . The valve assembly of  claim 1 , wherein the plural neck portions are formed between the fixed portion and the open/close portion at regular intervals.  
   
   
       8 . The valve assembly of  claim 1 , wherein a guide groove on which a fluid passing the suction hole is discharged is formed at the circumference of the open/close portion at regular intervals.  
   
   
       9 . The valve assembly of  claim 8 , wherein the guide groove having a certain width is formed at the edge of the open/close portion.