Compressor

Abstract

A compressor of the present invention comprises a cylinder ( 114 ) which accommodates a reciprocatable piston ( 116 ) therein; a valve plate ( 117 ) placed at an opening end of the cylinder ( 114 ) and includes a discharge valve seat ( 142 ) provided to surround a discharge hole ( 119 ); and a discharge valve ( 121 ) which opens and closes the discharge hole ( 119 ), wherein at least one of the discharge valve seat ( 142 ) and the discharge valve ( 121 ) is provided with a surface treatment film ( 160 ) including synthetic resin ( 171 ).

1 . A compressor comprising:
 a cylinder which accommodates a reciprocatable piston therein;   a valve plate placed at an opening end of the cylinder and includes a discharge valve seat provided to surround a discharge hole; and   a discharge valve which opens and closes the discharge hole,   wherein at least one of the discharge valve seat and a portion of the discharge valve which portion contacts the discharge valve seat is provided with a surface treatment film including synthetic resin.   
     
     
         2 . A compressor comprising:
 a cylinder which accommodates a reciprocatable piston therein;   a valve plate placed at an opening end of the cylinder and includes a suction valve seat provided to surround a suction hole; and   a suction valve which opens and closes the suction hole,   wherein at least one of the suction valve seat and a portion of the suction valve which portion contacts the suction valve seat is provided with a surface treatment film including synthetic resin.   
     
     
         3 . The compressor according to  claim 1 , further comprising:
 a suction valve which opens and closes a suction hole,   wherein the valve plate further includes a suction valve seat provided to surround the suction hole, and   wherein at least one of the suction valve seat and a portion of the suction valve which portion contacts the suction valve seat is provided with a surface treatment film including synthetic resin.   
     
     
         4 . The compressor according  claim 1 ,
 wherein the surface treatment film includes a solid lubricant.   
     
     
         5 . The compressor according to  claim 1 ,
 wherein each of the discharge valve seat and the portion of the discharge valve which portion contacts the discharge valve seat is provided with the surface treatment film.   
     
     
         6 . The compressor according to  claim 2 ,
 wherein each of the suction valve seat and the portion of the suction valve which portion contacts the suction valve seat is provided with the surface treatment film.   
     
     
         7 . The compressor according to  claim 1 ,
 wherein the surface treatment film has a thickness of 1 μm to 20 μm.   
     
     
         8 . The compressor according to  claim 1 ,
 wherein the synthetic resin comprises at least one resin selected from a resin group consisting of polyamide resin, epoxy resin, and phenol resin.   
     
     
         9 . The compressor according to  claim 4 ,
 wherein the solid lubricant comprises at least one compound selected from a compound group consisting of molybdenum disulfide, graphite, polytetrafluoroethylene resin, and antimony trioxide.   
     
     
         10 . The compressor according  claim 2 ,
 wherein the surface treatment film includes a solid lubricant.   
     
     
         11 . The compressor according to  claim 2 ,
 wherein the surface treatment film has a thickness of 1 μm to 20 μm.   
     
     
         12 . The compressor according to  claim 2 ,
 wherein the synthetic resin comprises at least one resin selected from a resin group consisting of polyamide resin, epoxy resin, and phenol resin.