Compressor

Abstract

A compressor, capable of reducing friction among a vane and parts which perform relative motion with the vane in driving the compressor by using materials having thermal expansion coefficient of the vane as same as or higher than 2.5×10 −5 /° C., reducing consumption of activation energy and friction loss by gaining lower friction coefficient and higher abrasion resistance, reducing abrasion of the parts, controlling heat transfer, and increasing suction amount of refrigerant gas, can improve compression performance.

1 . A compressor, comprising: 
 a cylinder assembly having a compression space;    a rotation body which is inserted in the compression space of the cylinder assembly so that it can rotate; and    a vane which is inserted in a vane slot formed in the cylinder assembly to be contacted on the rotation body, for dividing the compression space of the cylinder assembly into a suction region and a compression region performing relative motion according to rotation of the rotation body,    wherein the vane of a compressor is formed with materials having a thermal expansion coefficient as same as or larger than 2.5×10 −5 /° C.    
     
     
         2 . The compressor of  claim 1 , wherein the vane is made of a material having a thermal expansion coefficient between 3.5×10 −5 /° C. and 5.0×10 −5 /° C.  
     
     
         3 . The compressor of  claim 1 , wherein the vane is made of polymer composite materials.  
     
     
         4 . The compressor of  claim 1 , wherein the vane is made of polyamide.  
     
     
         5 . The compressor of  claim 1 , wherein the assembly clearance between the vane and slot is set larger than an optimal assembly clearance in consideration of thermal expansion under the condition of normal driving.