Compressor intended to compress coolant fluid for a refrigeration or air conditioning installation

Abstract

A compressor intended to compress coolant fluid for a refrigeration or air conditioning installation, comprising a substantially vertical body consisting of a casing intended to receive in particular a lubricating liquid in its bottom portion forming a reservoir, and means of heating the lubricating liquid. The means of heating the lubricating liquid and means of acoustic insulation and thermal insulation situated below the heating means are placed close to the bottom wall of the casing.

1 . A compressor for compressing coolant fluid for an air conditioning installation, comprising a substantially vertical body comprising a casing for receiving a lubricating liquid in its bottom portion forming a reservoir, and means of heating the lubricating liquid, wherein the means of heating the lubricating liquid and means of acoustic insulation and thermal insulation situated below the heating means are placed close to the bottom wall of the casing.  
   
   
       2 . The compressor as claimed in  claim 1 , wherein the acoustic insulation and thermal insulation means are at a distance from the support to which the compressor is attached.  
   
   
       3 . The compressor as claimed in  claim 1 , wherein the acoustic insulation and thermal insulation means comprise at least one layer of insulating material.  
   
   
       4 . The compressor as claimed in  claim 3 , wherein at least one layer of insulating material comprises a cellular material.  
   
   
       5 . The compressor as claimed in  claim 3 , wherein at least one layer of insulating material comprises felt.  
   
   
       6 . The compressor as claimed in  claim 3 , wherein at least one layer of insulating material comprises a fibrous material.  
   
   
       7 . The compressor as claimed in  claim 3 , wherein the acoustic insulation and thermal insulation means also comprise a rigid support plate.  
   
   
       8 . The compressor as claimed in  claim 3 , wherein the acoustic insulation and thermal insulation means also comprise a film for protecting and retaining the insulating material.  
   
   
       9 . The compressor as claimed in  claim 1 , wherein the thermal and acoustic insulation means have a top surface whose shape at least in part substantially complements that of the bottom wall of the casing.  
   
   
       10 . The compressor as claimed in  claim 1 , wherein the heating means comprise at least one electric resistance attached to the bottom wall of the casing, outside the latter.  
   
   
       11 . The compressor as claimed in  claim 10 , wherein at least one electric resistance is attached to the bottom wall of the casing by adhesive means.  
   
   
       12 . The compressor as claimed in  claim 1 , wherein the thermal insulation and acoustic insulation means are kept in position relative to the body of the compressor by attachment means.  
   
   
       13 . The compressor as claimed in  claim 12 , wherein the attachment means comprise at least one elastic clip kept in position by clipping a protruding portion of the compressor and a substantially horizontal lug, the thermal and acoustic insulation means pressing on the lugs of the attachment means.  
   
   
       14 . The compressor as claimed in  claim 13 , wherein the attachment means are at least two in number.  
   
   
       15 . The compressor as claimed in  claim 1 , wherein the thermal and acoustic insulation means allow the attachment feet of the compressor to pass through.  
   
   
       16 . The compressor as claimed in  claim 1 , which comprises an acoustic insulation jacket covering the body of the compressor.  
   
   
       17 . A thermodynamic machine including at least one compressor as claimed in  claim 1.