Compressor Housing of a Radial Compressor

Abstract

A compressor housing ( 16 ) of a radial compressor at least two housing portions ( 10, 12, 14 ) at least partially of plastic material and defines compressor impeller installation space ( 48 ) and a spiral duct ( 46 ) that surrounds it radially on the outside with regard to a rotational axis ( 18 ) of an impeller. A securement structure ( 50 ) encloses the compressor impeller installation space ( 48 ) at least partially in an annular manner and is arranged in radial direction between the impeller installation space ( 48 ) and the spiral duct ( 46 ). The securement structure includes a separate burst-protection ring ( 50 ) with a tubular wall section ( 34 ) enclosing the impeller installation space ( 48 ) circumferentially.

1 . A compressor housing ( 16 ;  116 ) of a radial compressor or turbocharger comprising:
 at least two housing components ( 10 ,  12 ,  14 ;  110 ,  112 ,  114 ) comprising a molded synthetic material;   a compressor impeller installation space ( 48 ;  148 ) defined by said housing components and arranged in said housing;   a spiral duct ( 46 ;  146 ) defined by said housing and arranged within said housing radially spaced outwardly from and circumferentially surrounding said compressor impeller installation space ( 48 ;  148 ) relative to a rotational axis ( 18 ;  118 ) of a compressor impeller;   a securement structure ( 50 ;  150 ,  156 ) circumferentially surrounding and enclosing said compressor impeller installation space ( 48 ;  148 ) at least partially in an annular manner,   wherein said securement structure ( 50 ;  150 ,  156 ) is arranged in radial direction between said compressor impeller installation space ( 48 ;  148 ) said the spiral duct ( 46 ;  146 );   wherein said securement structure includes
 a separate burst-protection ring ( 50 ;  150 ) having a tubular wall section ( 34 ;  134 ) enclosing said compressor impeller installation space ( 48 ;  148 ) circumferentially and enclosed completely within said compressor housing ( 16 ;  116 ), said burst-protection ring ( 50 ;  150 ) with tubular wall section ( 34 ;  134 ) secured in a fixed position within said housing. 
   
     
     
         2 . The compressor housing according to  claim 1 , wherein
 said burst-protection ring ( 50 ;  150 ) is arranged within and enclosed within an annular space ( 52 ;  152 ) defined within said housing, said annular space surrounding said compressor impeller installation space ( 48 ;  148 ) radially outside,   wherein said annular space is defined by and enclosed by at least two of said housing components ( 10 ,  14 ;  110 ,  114 ).   
     
     
         3 . The compressor housing according to  claim 1 , wherein
 said burst-protection ring ( 50 ;  150 ) is securely fixed in position within said compressor housing ( 16 ;  116 ) by a form-fit connection,   wherein said form-fit connection is any of: by clamping ribs and/or snap-in hooks and/or beads, and/or by means of a force-fit connection,   wherein said forcer fit connection is any of: by pressing on or by pressing in the burst-protection ring, and/or cohesive connection,   wherein said cohesive connection is any of: a glued connection, an injection connection or a welded connection.   
     
     
         4 . The compressor housing according to  claim 1 , wherein
 said tubular wall section ( 34 ; 134 ) of said burst-protection ring ( 50 ;  150 ) is made of a ductile material selected from the set consisting of: metal, synthetic material, carbon fibers, ceramics, aramid fibers or a material mix.   
     
     
         5 . The compressor housing according to  claim 1 , wherein
 said burst-protection ring ( 150 ) forms a portion of a wall section defining said spiral duct ( 146 ).   
     
     
         6 . The compressor housing according to  claim 2 , wherein
 said burst-protection ring ( 50 ;  150 ) is securely fixed in position within said compressor housing ( 16 ;  116 ) by a form-fit connection,   wherein said form-fit connection is any of: by clamping ribs and/or snap-in hooks and/or beads, and/or by means of a force-fit connection,   wherein said forcer fit connection is any of: by pressing on or by pressing in the burst-protection ring, and/or cohesive connection,   wherein said cohesive connection is any of: a glued connection, an injection connection or a welded connection,   wherein said tubular wall section ( 34 ; 134 ) of said burst-protection ring ( 50 ;  150 ) is made of a ductile material selected from the set consisting of: metal, synthetic material, carbon fibers, ceramics, aramid fibers or a material mix, and   wherein said burst-protection ring ( 150 ) forms a portion of a wall section defining said spiral duct ( 146 ).