Apparatus for supplying oil of reciprocating compressor

Abstract

Disclosed is an apparatus for supplying oil of a reciprocating compressor, comprising: an oil cylinder installed at one side of a reciprocating compressor main body for linearly vibrating together with the compressor main body, an oil piston inserted in the oil cylinder and relatively moving according to the linear vibration of the oil cylinder and thus sucking an oil in the oil cylinder and pumping the oil into the compressor main body by varying pressure in the oil cylinder, a pair of springs installed in the oil cylinder for elastically supporting both ends of the oil piston and causing a continual relative movement of the oil piston according to the linear vibration of the oil cylinder and a spring fixing means fixing the pair of springs for maintaining a certain interval with an inner circumferential surface of the oil cylinder, which results in reducing damage due to friction between the oil cylinder and the springs and in improving an oil supplying function.

1 . An apparatus for supplying oil of a reciprocating compressor, comprising: 
 an oil cylinder installed at one side of a reciprocating compressor main body for linearly vibrating together with the compressor main body;    an oil piston inserted in the oil cylinder and relatively moving according to the linear vibration of the oil cylinder and thus sucking an oil in the oil cylinder and pumping the oil into the compressor main body by varying pressure in the oil cylinder;    a pair of springs installed in the oil cylinder for elastically supporting both ends of the oil piston and causing a continual relative movement of the oil piston according to the linear vibration of the oil cylinder; and    a spring fixing means fixing the pair of springs for maintaining a certain interval with an inner circumferential surface of the oil cylinder.    
   
   
       2 . The apparatus of  claim 1 , wherein the spring fixing means are formed in both ends of the oil piston for fixing one end of each spring contacting both side surfaces of the oil piston.  
   
   
       3 . The apparatus of  claim 2 , wherein the spring fixing means are protruded from both ends of the oil piston in order to be inserted in an inner circumferential surface of one end of each spring.  
   
   
       4 . The apparatus of  claim 3 , wherein the spring fixing means is inserted in the inner circumferential surface of each one end of the springs with a forcedly fit.  
   
   
       5 . The apparatus of  claim 2 , wherein the spring fixing means is a groove recessed inwards of both ends of the oil piston in order for one end of each spring to be insertion-fixed thereto.  
   
   
       6 . The apparatus of  claim 1 , wherein the spring fixing means is formed in both inner side walls of the oil cylinder for fixing one end of each spring contacting both inner side walls of the oil cylinder.  
   
   
       7 . The apparatus of  claim 6 , wherein the spring fixing means is protruded from both inner side walls of the oil cylinder in order to be inserted in an inner circumferential surface of one end of each spring.  
   
   
       8 . The apparatus of  claim 6 , wherein the spring fixing means is a groove recessed inwards of both side walls of the oil cylinder in order for one end of each spring to be insertion-fixed thereto.  
   
   
       9 . The apparatus of  claim 1 , wherein the spring fixing means comprises: 
 a first fixing portion formed in both ends of the oil piston for fixing one end of each spring contacting both ends of the oil piston; and    a second fixing portion formed in both inner side walls of the oil cylinder for fixing one end of each spring contacting both inner side walls of the oil cylinder.    
   
   
       10 . The apparatus of  claim 9 , wherein the first fixing portion is protruded from both ends of the oil piston to be inserted in the inner circumferential surface of one end of each spring.  
   
   
       11 . The apparatus of  claim 10 , wherein the first fixing portion is inserted in the inner circumferential surface of one end of the spring with a forced fit.  
   
   
       12 . The apparatus of  claim 9 , wherein the first fixing portion is a groove recessed inwards of both ends of the oil piston in order for one end of each spring to be insertion-fixed thereto.  
   
   
       13 . The apparatus of  claim 9 , wherein the second fixing portion is protruded from both inner side walls of the oil cylinder to be inserted in the inner circumferential surface of one end of the spring.  
   
   
       14 . The apparatus of  claim 9 , wherein the second fixing portion is a groove recessed inwards of both inner side walls of the oil cylinder in order for one end of the spring to be insertion-fixed thereto.