Suction valve assembly of reciprocating compressor

Abstract

A suction valve assembly of a reciprocating compressor comprises: a valve supporting body inserted-fixed to a valve mounting portion formed at a piston and provided with at least one suction hole through which a fluid introduced into a suction passage of the piston is supplied to a compression chamber of a cylinder; and a suction valve mounted at the valve supporting body to be rotatable within a certain range, for opening and closing the suction hole formed at the valve supporting body. According to this, a damage of the suction valve due to fatigue is prevented thus to enhance a reliability of the compressor.

What is claimed is:  
     
         1 . A suction valve assembly of a reciprocating compressor comprising: 
 a valve supporting body inserted-fixed to a valve mounting portion formed at a piston and provided with at least one suction hole through which a fluid introduced into a suction passage of the piston is supplied to a compression chamber of a cylinder; and    a suction valve mounted at the valve supporting body to be rotatable within a certain range, for opening and closing the suction hole formed at the valve supporting body.    
     
     
         2 . The suction valve assembly of  claim 1 , wherein the valve supporting body is formed as a disc shape, an outer circumferential surface thereof is fixed to the valve mounting portion, and the valve supporting body is provided with a pin hole for inserting a hinge pin so that the suction valve can be hinge-coupled.  
     
     
         3 . The suction valve assembly of  claim 2 , wherein the valve supporting body is provided with at least one suction hole formed at one side on the basis of the pin hole, and is provided with a stopper formed at another side for preventing the suction valve from being opened more than a certain range by stopping the suction valve.  
     
     
         4 . The suction valve assembly of  claim 3 , wherein the stopper is formed to have a certain inclination surface of which height becomes lower towards an edge of the valve supporting body from a center thereof.  
     
     
         5 . The suction valve assembly of  claim 2 , wherein the suction valve has a disc shape, and is provided with a slot at a center thereof for inserting the hinge pin.  
     
     
         6 . The suction valve assembly of  claim 5 , wherein the slot has a certain distance that the hinge pin is sliding-moved so that the suction valve can be linearly-moved within a certain range.  
     
     
         7 . The suction valve assembly of  claim 5 , wherein the suction valve is provided with an open/close portion formed at one side on the basis of the pin hole for opening and closing the suction hole of the valve supporting body, and is provided with a stopping portion formed at another side and stopped by the stopper of the valve supporting body.  
     
     
         8 . The suction valve assembly of  claim 7 , wherein the open/close portion of the suction valve is formed to have a height higher than that of the stopping portion.  
     
     
         9 . The suction valve assembly of  claim 5 , wherein the valve mounting portion of the piston is provided with a valve seat portion at an upper inner circumferential surface thereof, to the valve seat portion an outer circumferential surface of the suction valve is hermetically adhered.  
     
     
         10 . The suction valve assembly of  claim 9 , wherein the valve seat portion is formed as a curved surface form so that the suction valve can be rotated, and the outer circumferential surface of the suction valve is also formed as a curved surface form corresponding to the valve seat portion so that the suction valve can be slid by being adhered to a surface of the valve seat portion.