Scroll-type compressor with cooling fins included inside a discharge port of a compressed gas

Abstract

A scroll-type compressor 1 of the present invention comprises a fixed scroll 30, a movable scroll 51 which orbits so that it slides along the fixed scroll 30, draws, and compresses gas, and a housing 3 which includes a discharge port 6 from which the gas compressed by the movable scroll 51 is discharged; wherein a cooling fin 35, which directly contacts at least a part of the compressed gas, receives heat from the compressed gas, and reduces the temperature of the compressed gas, is included inside the discharge port 6. In the scroll-type compressor in the present invention the cooling fin is provided in the discharge port. When the cooling fin is provided in the discharge port, and not around the discharge port, the discharge gas of high temperature directly contacts the cooling fin, so that the cooling efficiency of the compressor is improved.

1 . A scroll-type compressor, comprising a fixed scroll, a movable scroll which orbits so that it slides along the fixed scroll, draws, and compresses gas, and a housing which includes a discharge port from which gas compressed by said movable scroll is discharged; wherein a cooling fin which directly contacts at least a part of the compressed gas, receives heat from the compressed gas, and reduces the temperature of said compressed gas, is included inside the discharge port.  
     
     
         2 . A scroll-type compressor, as set forth in  claim 1 , wherein the housing comprises a cooling chamber on at least a part of an outer circumference of the discharge port.  
     
     
         3 . A scroll-type compressor, as set forth in  claim 1 , wherein the cooling fin comprises an inner passage.  
     
     
         4 . A scroll-type compressor, as set forth in  claim 1 , wherein the housing is provided with a cooling chamber on at least a part of an outer circumference of the discharge port, the cooling fin is provided with inner passage, and said cooling chamber is connected to said inner passage.  
     
     
         5 . A scroll-type compressor, as set forth in  claim 1 , is used to compress gas supplied to a fuel cell.