Compressor

Abstract

A compressor includes a suction chamber and a discharge chamber in the housing. A first component is secured to a second component to form the housing. A first defining wall and a second defining wall are located in the second component to define the suction chamber and the discharge chamber. The second defining wall is located radially inward of the first defining wall. An inner fastener is located radially inward of the first defining wall and secures the first component to the second component.

1 . A compressor having a suction chamber and a discharge chamber in a housing, the compressor comprising: 
 a first component;    a second component, which is secured to the first component, wherein said first and second components form the housing,    wherein the second component includes a first defining wall and a second defining wall for defining the suction chamber and the discharge chamber inside the second component, and wherein the second defining wall is located radially inward of the first defining wall; and    an inner fastener located radially inward of the first defining wall, wherein the inner fastener secures the first component to the second component.    
     
     
         2 . The compressor according to  claim 1 , wherein the inner fastener is located radially inward of the second defining wall.  
     
     
         3 . The compressor according to  claim 1 , wherein the inner fastener is located on the second defining wall.  
     
     
         4 . The compressor according to  claim 1 , wherein the inner fastener is located radially inward of the first defining wall and radially outward of the second defining wall.  
     
     
         5 . The compressor according to  claim 1 , wherein the inner fastener includes a bolt.  
     
     
         6 . The compressor according to  claim 1 , wherein the inner fastener is a coupler, which extends from one of the first and second components and is press fitted to the other one of the first and second components.  
     
     
         7 . The compressor according to  claim 6 , wherein the inner fastener includes a cylindrical pin.  
     
     
         8 . The compressor according to  claim 6 , wherein the inner fastener is integrally formed with one of the first and second components.  
     
     
         9 . The compressor according to  claim 1 , further comprising an outer fastener for securing the first component to the second component at the first defining wall.  
     
     
         10 . The compressor according to  claim 9 , wherein the outer fastener is a plurality of bolts.  
     
     
         11 . The compressor according to  claim 1 , wherein the compressor is a piston type compressor, and the first component is a cylinder block in which cylinder bores are formed, wherein each cylinder bore accommodates a piston, and the second component is located at one end of the housing, and wherein a valve plate assembly is located between the first and second components.  
     
     
         12 . The compressor according to  claim 5 , wherein the suction chamber is located radially inward of the second defining wall, and wherein the discharge chamber is located between the first defining wall and the second defining wall.  
     
     
         13 . The compressor according to  claim 12 , wherein the inner fastener is inserted through the center of the suction chamber.  
     
     
         14 . The compressor according to  claim 1 , wherein the second component is made of resin or magnesium-based metal.  
     
     
         15 . A compressor comprising: 
 a cylinder block, wherein the cylinder block has a cylinder bore;    a piston movably accommodated in the cylinder bore;    a rear housing member, which is secured to the cylinder block, wherein the rear housing member includes a first defining wall and a second defining wall, which define a discharge chamber in between said first and second defining walls, and wherein a suction chamber is defined radially inward of the second defining wall;    a valve plate assembly located between the cylinder block and the rear housing member, wherein the valve plate assembly has a valve, which selectively communicates the suction chamber and the discharge chamber with the cylinder bore; and    an inner fastener, which is inserted through one of the suction chamber and the discharge chamber, wherein the inner fastener secures the rear housing member to the cylinder block.    
     
     
         16 . The compressor according to  claim 15 , further comprising a plurality of outer fasteners for securing the cylinder block to the rear housing member at the first defining wall.  
     
     
         17 . The compressor according to  claim 15 , wherein the inner fastener includes a bolt.  
     
     
         18 . The compressor according to  claim 15 , wherein the inner fastener is a coupler, which extends from the rear housing member and is press fitted into the cylinder block.  
     
     
         19 . The compressor according to  claim 18 , wherein the inner fastener is integrally formed with the rear housing member.