Oil feeding apparatus for reciprocating compressor

Abstract

An oil feeding apparatus for a reciprocating compressor comprises: a frame unit; an oil cylinder positioned at a lower portion of the frame unit and vibrating together with the frame unit; an oil flow passage formed in the frame unit to be communicated with the oil cylinder; an oil valve placed at the frame unit, for opening/closing the oil flow passage; an oil piston movably-inserted in the oil cylinder; and springs for elastically supporting the oil piston, wherein the frame unit and the oil cylinder are integrally formed with each other. According to this, components therefor can be simplified, a distortion of the components during an assembling process can be prevented, and an oil leakage and an oil contamination can be also effectively prevented.

1 . An oil feeding apparatus for a reciprocating compressor comprising: 
 a frame unit mounted with a compression unit for compressing gas by receiving a reciprocating driving force of a driving motor and positioned to be elastically supported in a casing filled with oil at a bottom surface thereof;    an oil cylinder positioned at a lower portion of the frame unit and vibrating together with the frame unit;    an oil flow passage formed at the frame unit to be communicated with the oil cylinder;    an oil valve placed at the frame unit, for opening/closing the oil flow passage;    an oil piston movably-inserted in the oil cylinder; and    springs for elastically supporting the oil piston,    wherein the frame unit and the oil cylinder are integrally formed with each other.    
   
   
       2 . The apparatus of  claim 1 , wherein the frame unit and the oil cylinder are formed of the same material.  
   
   
       3 . The apparatus of  claim 1 , wherein the oil cylinder is formed in a pipe shape having certain inside diameter and length.  
   
   
       4 . The apparatus of  claim 1 , wherein an oil suction pipe is installed at a lower surface part of the frame unit.  
   
   
       5 . The apparatus of  claim 4 , wherein the oil suction pipe and the frame unit are integrally formed with each other.  
   
   
       6 . An oil feeding apparatus for a reciprocating compressor comprising: 
 a frame having a frame main body mounted with a driving motor for generating a linear reciprocating driving force and a compression unit for compressing gas by receiving the driving force of the driving motor, and an oil cylinder which is extendedly-protruded from the frame main body to have certain inside diameter and length;    an oil piston movably-inserted in the oil cylinder of the frame; and    springs for elastically supporting the oil piston.