Automotive motor-compressor assembly

Abstract

There is described an automotive motor-compressor assembly ( 1 ) having an electric motor ( 2 ); a compressor ( 3 ) through which a work fluid flows, and having a housing ( 5 ) and an impeller ( 6 ); and connecting means ( 4 ) for releasably fixing the compressor ( 3 ) to the motor ( 2 ), and having a first connecting member ( 10 ) defining a locating surface ( 10 a ) for a connecting portion ( 5 a ) of the housing ( 5 ), and a second connecting member ( 11 ) defining at least one guide surface ( 16 ) for guiding the work fluid inside the housing ( 5 ). (Attached drawing)

1 ) An automotive motor-compressor assembly ( 1 ) comprising: 
 an electric motor ( 2 );    at least one compressor ( 3 ) through which a work fluid flows, and having a housing ( 5 ) and an impeller ( 6 ); and    connecting means ( 4 ) for releasably fixing said compressor ( 3 ) to said motor ( 2 ), and comprising at least a first connecting member ( 10 ) defining a locating surface ( 10   a ) for a connecting portion ( 5   a ) of said housing ( 5 );    Wherein said connecting means ( 4 ) comprise a second connecting member ( 11 ) defining at least one guide surface ( 16 ) for guiding the work fluid inside the housing ( 5 ):    
   
   
       2 ) A motor-compressor assembly as claimed in  claim 1 , characterized in that said second connecting member ( 11 ) is sandwiched axially between said first connecting member ( 10 ) and said housing ( 5 ).  
   
   
       3 ) A motor-compressor assembly as claimed in  claim 2 , characterized by comprising releasable first fastening means ( 21 ) for fastening said first connecting member ( 10 ) to said motor ( 2 ); said second connecting member ( 11 ) defining at least one seat ( 18 ) for a respective projecting portion of said releasable first fastening means ( 21 ).  
   
   
       4 ) A motor-compressor assembly as claimed in  claim 1 , characterized in that said connecting portion ( 5   a ) of said housing ( 5 ) is fitted in rotary manner to said locating surface ( 10   a ) of said first connecting member ( 10 ); second fastening means ( 22 ) being provided to lock said housing ( 5 ) to said first connecting member ( 10 ) in the desired angular position.  
   
   
       5 ) A motor-compressor assembly as claimed in  claim 1 , characterized in that said second connecting member ( 11 ) has blades ( 25 ).