Reciprocating compressor

Abstract

A reciprocating compressor includes a piston which reciprocates in a cylinder; a suction valve mounted at an end surface of the piston; a discharging valve assembly that compresses and discharges gas taken into a compression space; and a suction valve fixing member engaged to a frontal surface of the piston to movably receive the suction valve.

What is claimed is:  
     
         1 . A reciprocating compressor comprising: 
 a piston which reciprocates in a cylinder by receiving a driving force of a reciprocating motor and has a gas suction path therein;    a suction valve mounted at an end surface of the piston to control flow of taken in gas through the suction path;    a valve assembly having a discharge cover engaged to one side of the cylinder, a discharge valve installed at an end portion of the cylinder to control gas discharge of a compression space formed by the cylinder and the piston, and a valve spring that elastically supports the discharge valve; and    a suction valve fixing member engaged to a frontal surface of the piston to receive the suction valve for back and forth movement.    
     
     
         2 . The compressor of  claim 1 , wherein the suction valve opens the suction path at the time when gas is taken in and closes the suction path at the time when gas is compressed.  
     
     
         3 . The compressor of  claim 1 , wherein the suction valve is provided with supporting surfaces at the outer circumference thereof, and suction surfaces that pass gas are formed between the supporting surfaces.  
     
     
         4 . The compressor of  claim 3 , wherein the suction valve is composed of a thin plate.  
     
     
         5 . The compressor of  claim 1 , wherein the suction valve fixing member is provided with a through hole connected to the suction path at a center of the frontal surface of the fixing member suction valve.  
     
     
         6 . The compressor of  claim 5 , wherein a protrusion surface is formed at a center of the rear surface of the discharge valve to correspond to the through hole.  
     
     
         7 . The compressor of  claim 1 , wherein the suction valve fixing member has a cylindrical shape.  
     
     
         8 . The compressor of  claim 1 , wherein the suction valve fixing member is forcibly fit onto a frontal side of the piston.  
     
     
         9 . The compressor of  claim 1 , wherein a female screw is formed at the inner circumferential surface of the suction valve fixing member and a male screw is formed in front of the piston.  
     
     
         10 . The compressor of  claim 1 , wherein the suction valve fixing member comprises a cylindrical body engaged to the piston, and a stopping portion extending transversely from an end portion of the body to restrict the movement of the suction valve.  
     
     
         11 . A reciprocating compressor comprising: 
 a piston which reciprocates in a cylinder by receiving a driving force of a reciprocating motor and has a gas suction path therein;    a suction valve mounted at an end surface of the piston to control flow of taken in gas through the suction path;    a valve assembly having a discharge cover engaged to one side of the cylinder, a discharge valve installed at an end portion of the cylinder to control gas discharge of a compression space formed by the cylinder and the piston, and a valve spring that elastically supports the discharge valve;    a round head rivet that fixes the suction valve to the piston; and    an insertion groove formed at the rear surface of the discharge valve to receive the round head rivet.