Compressor

Abstract

A compressor having a shell formed by mutually coupling shell constitution members that are a closed-bottomed container-like housing and a front housing into which a drive shaft is inserted, a compression chamber forming body provided in the shell, and a coupling element for coupling and fixing the compression chamber forming body and the shell constitution member to each other. The coupling element is extended only in the region where the shell is present, and a hole in which the coupling element extends and that is formed in the shell constitution member to which the coupling element is coupled does not penetrate the shell constitution member but terminates in the wall of the shell constitution member. In the compressor, sealing ability for leakage of refrigerant can be remarkably enhanced and restrictions on external piping and apparatuses are relaxed to significantly increase the degree of design freedom.

1 . A compressor having a shell formed by mutually coupling shell constitution members that are a closed-bottomed container-like housing and a front housing into which a drive shaft is inserted, with a bolt which is inserted from a side of said front housing into an insertion hole extended from said front housing to a wall of said housing, a compression chamber forming body provided in said shell, and a coupling element for coupling and fixing said compression chamber forming body and said shell constitution member to each other, characterized in that said coupling element is extended only in a region where said shell is present, and a hole which is formed in said shell constitution member to which said coupling element is coupled for extension of said coupling element does not penetrate said shell constitution member but terminates in a wall of said shell constitution member. 
   
   
       2 . The compressor according to  claim 1 , wherein said shell constitution member which is coupled to said coupling element comprises said closed-bottomed container-like housing. 
   
   
       3 . The compressor according to  claim 1 , wherein said coupling element comprises a bolt. 
   
   
       4 . The compressor according to  claim 1 , wherein said compressor is a compressor for compression of refrigerant provided in a refrigeration cycle. 
   
   
       5 . The compressor according to  claim 4 , wherein said compressor is a compressor for compression of carbon dioxide.