Compressor

Abstract

Compressor including a chamber having a muffler room therein for introducing refrigerant compressed at a compression part, a cover on top of the chamber for closing an upper part of the muffler room, and a discharge muffler including a first coating gasket having a base part with coated layers on upper and lower surfaces for sealing between the chamber and the cover, thereby reducing noise and simplifying assembly.

1 . A compressor comprising: 
 a chamber having a muffler room therein for introducing refrigerant compressed at a compression part;    a cover on top of the chamber for closing an upper part of the muffler room; and    a discharge muffler including a first coating gasket having a base part with coated layers on upper and lower surfaces for sealing between the chamber and the cover.    
   
   
       2 . The compressor as claimed in  claim 1 , wherein the base part is a disk of metal having a hole at a central part.  
   
   
       3 . The compressor as claimed in  claim 2 , wherein the metal is steel.  
   
   
       4 . The compressor as claimed in  claim 1 , wherein the first coating gasket has a form of a disk having a hole in a central part and a predetermined width in a radial direction for choking a communication part between the muffler room and a lower space of the cover.  
   
   
       5 . The compressor as claimed in  claim 1 , wherein the cover and the first coating gasket have central holes respectively, the chamber has a fastening hole in a bottom, and the compressor further includes a bolt passed through the holes and fastened to the fastening hole.  
   
   
       6 . The compressor as claimed in  claim 5 , wherein the central hole in the first coating gasket has a diameter greater than the bolt.  
   
   
       7 . The compressor as claimed in  claim 5 , wherein the fastening hole is projected upward from the bottom of the chamber.  
   
   
       8 . The compressor as claimed in  claim 5 , wherein the bolt includes; 
 a head part held at an upper surface of the cover, and    a screw part under the head part for fastening to the fastening hole.    
   
   
       9 . The compressor as claimed in  claim 7 , wherein the cover and the first coating gasket are clamped between the head part and the chamber as the bolt is fastened.  
   
   
       10 . The compressor as claimed in  claim 1 , wherein the cover has an extension from a rim in a lower part thereof, and the chamber has a loading part on an inside wall for loading the extension.  
   
   
       11 . The compressor as claimed in  claim 1 , wherein the coating layer is formed of elastic rubber.  
   
   
       12 . The compressor as claimed in  claim 1 , further comprising a loop pipe at one side of the cover as a refrigerant flow passage from the discharge muffler.  
   
   
       13 . The compressor as claimed in  claim 1 , wherein the compression part includes; 
 a cylinder for reciprocating of a piston along an inside circumferential surface to compress the refrigerant,    a cylinder block having the cylinder and the discharge muffler fixed to an upper part thereof, and    a valve assembly in front of the cylinder for regulating suction and discharge of the refrigerant with reference to the cylinder.    
   
   
       14 . The compressor as claimed in  claim 13 , wherein the chamber is formed as one unit with the cylinder block.  
   
   
       15 . The compressor as claimed in  claim 13 , wherein the chamber has a lower part connected to a refrigerant discharge hole of the valve assembly.  
   
   
       16 . A compressor comprising a valve assembly including: 
 a suction plate in front of a cylinder for compressing refrigerant therein, having a suction valve and a discharge passage;    a valve plate in front of the suction plate, having a suction hole and a discharge hole;    a discharge plate in front of the valve plate, having a discharge valve for selective opening of the discharge hole, and a suction passage;    a head cover in front of the discharge plate, for isolating the refrigerant being drawn, from the refrigerant being discharged; and    a second coating gasket between the discharge plate and the head cover, having a retainer for regulating opening of the discharge plate and a suction passage in one side part thereof.    
   
   
       17 . The compressor as claimed in  claim 16 , wherein the second coating gasket includes; 
 a base part of metal, and    coated layers on outside surfaces of the base part.    
   
   
       18 . The compressor as claimed in  claim 17 , wherein the metal is steel.  
   
   
       19 . The compressor as claimed in  claim 16 , wherein the coated layer is formed of elastic rubber.  
   
   
       20 . The compressor as claimed in  claim 16 , wherein the second coating gasket has an opening in an inside part, and the retainer is formed across the opening.  
   
   
       21 . The compressor as claimed in  claim 20 , wherein the retainer is bent at opposite side parts to project toward the head cover.  
   
   
       22 . The compressor as claimed in  claim 20 , wherein the retainer is formed at a position in contact with a front surface of the discharge valve.  
   
   
       23 . The compressor as claimed in  claim 22 , wherein the retainer deforms elastically in a forward direction of the second coating gasket when the discharge valve is opened.  
   
   
       24 . The compressor as claimed in  claim 22 , wherein the retainer restores from the elastic deformation after discharge of refrigerant is finished, to push close the discharge valve.  
   
   
       25 . The compressor as claimed in  claim 16 , wherein the suction valve is formed as one unit with the suction plate.  
   
   
       26 . The compressor as claimed in  claim 16 , wherein the discharge valve is formed as one unit with the discharge plate.  
   
   
       27 . The compressor as claimed in  claim 16 , wherein the suction valve is opened as the suction valve is pushed backward of the suction plate by a pressure of the refrigerant while movement of the suction valve in a forward direction of the suction plate is held.  
   
   
       28 . The compressor as claimed in  claim 16 , wherein the discharge valve is opened as the discharge valve is pushed forward of the discharge plate by a pressure of the refrigerant while movement of the discharge valve in a backward direction of the discharge plate is held.  
   
   
       29 . The compressor as claimed in  claim 16 , wherein respective plates and the head cover have holes at four corners thereof, and bolts are inserted in the holes, respectively.  
   
   
       30 . The compressor as claimed in  claim 29 , wherein the bolts have one ends fastened to a front surface of the cylinder respectively, and the plates, and the head cover are clamped between the head parts of the bolts, and the front surface of the cylinder.