Compressor having oil returning apparatus

Abstract

In a compressor including a sealed casing respectively communicating with a suction pipe and a discharge pipe; a cylinder assembly disposed in the sealed casing and having a suction path and a discharge path; a Z-plate partitioning the internal space of the cylinder assembly into plural compression spaces and sucking, compressing and discharging gas while being rotated by a motor part; a vane contacted to the both surfaces of the Z-plate and partitioning each compression space into a suction region and a compression region while performing a reciprocating motion; and a discharge muffler covered the both sides of the cylinder assembly and lowering noise of discharged gas, a compressor comprises at least one oil returning member installed on a discharge route between the discharge path of the cylinder assembly and the discharge pipe of the sealed casing in order to filter oil flowing with gas.

1 . In a compressor including a sealed casing respectively communicating with a suction pipe and a discharge pipe; a cylinder assembly disposed in the sealed casing and having a suction path and a discharge path; a Z-plate partitioning the internal space of the cylinder assembly into plural compression spaces and sucking, compressing and discharging gas while being rotated by a motor part; a vane contacted to the both surfaces of the Z-plate and partitioning each compression space into a suction region and a compression region while performing a reciprocating motion; and a discharge muffler covered the both sides of the cylinder assembly and lowering noise of discharged gas, a compressor, comprising: 
 at least one oil returning member installed on a discharge route between the discharge path of the cylinder assembly and the discharge pipe of the sealed casing in order to filter oil flowing with gas.    
     
     
         2 . The compressor of  claim 1 , wherein the oil returning member is formed as a screen shape having a certain mesh and is installed at an inlet side of the discharge pipe.  
     
     
         3 . The compressor of  claim 2 , wherein the oil returning member is a plate type formed so as to be corresponded to a section of the sealed casing and be tightly contacted-fixed to the inner circumference of the sealed casing.  
     
     
         4 . The compressor of  claim 2 , wherein the oil returning member is inserted into the discharge pipe.  
     
     
         5 . The compressor of  claim 1 , wherein the oil returning member is formed as a screen shape having a certain mesh and is installed at an outlet side of the discharge muffler.  
     
     
         6 . The compressor of  claim 5 , wherein the oil returning member is a plate type formed so as to be corresponded to a section of the discharge muffler and be tightly contacted-fixed to the inner circumference of the discharge muffler.  
     
     
         7 . The compressor of  claim 5 , wherein the oil returning member is inserted into an outlet of the discharge muffler.  
     
     
         8 . In a compressor including a sealed casing respectively communicating with a suction pipe and a discharge pipe; a motor part disposed in the sealed casing and generating a driving force; and a compression part for sucking, compressing and discharging gas by receiving the driving force of the motor part, the compressor having an oil returning apparatus, comprising: 
 at least one oil returning member formed as a screen shape having a certain mesh and installed on a discharge route between the compression part and the discharge pipe of the sealed casing in order to filter oil flowing with gas.