Compressor of turbocharger

Abstract

A compressor of a turbocharger including a compressor housing and a compressor impeller. The compressor housing includes: a compressor flow passage, a compressor air inlet, and a compressor air outlet. The compressor impeller includes an impeller feeding flow passage. The compressor impeller is disposed inside the compressor housing. The compressor flow passage is disposed inside the compressor housing. The compressor flow passage is connected to the compressor air inlet and the compressor air outlet. The impeller air feeding flow passage is connected to the compressor air inlet and the compressor flow passage.

The invention claimed is: 
     
         1 . A compressor of a turbocharger, comprising:
 a) a compressor housing, the compressor housing comprising: a compressor flow passage, a compressor air inlet, and a compressor air outlet;   b) a compressor impeller, the compressor impeller comprising an impeller feeding flow passage;   wherein
 the compressor impeller is disposed inside the compressor housing; 
 the compressor flow passage is disposed inside the compressor housing; 
 the compressor flow passage is connected to the compressor air inlet and the compressor air outlet; and 
 the impeller air feeding flow passage is connected to the compressor air inlet and the compressor flow passage. 
   
     
     
         2 . The compressor of  claim 1 , wherein
 the compressor flow passage comprises a compressor inner flow passage and a compressor outer flow passage which are arranged side by side on the compressor housing; and   a ratio of a width W 1  of an air inlet of the compressor inner flow passage to a width W 2  of an air inlet of the compressor outer flow passage is between 0.1 and 10.   
     
     
         3 . The compressor of  claim 2 , wherein a compressor diffuser is disposed at the air inlet of the compressor inner flow passage. 
     
     
         4 . The compressor of  claim 3 , wherein
 the compressor air outlet comprises: an air outlet of the compressor inner flow passage connected to the compressor inner flow passage and an air outlet of the compressor outer flow passage connected to the compressor outer flow passage; and   a ratio of a width W 3  of the air outlet of the compressor inner flow passage to a width W 4  of the air outlet of the compressor outer flow passage is between 0.1 and 10.   
     
     
         5 . The compressor of  claim 4 , wherein a ratio of the width W 1  of the air inlet of the compressor inner flow passage to the width W 2  of the air inlet of the compressor outer flow passage is nonequivalent to the ratio of the width W 3  of the air outlet of the compressor inner flow passage to the width W 4  of the air outlet of the compressor outer flow passage. 
     
     
         6 . The compressor of  claim 4 , wherein
 the compressor impeller comprises an impeller air inlet and an impeller air outlet;   a partition plate is circumferentially disposed on the compressor impeller between the impeller air inlet and the impeller air outlet; and   the partition plate divides the impeller air feeding flow passage into an impeller air feeding inner flow passage communicating with the compressor inner flow passage and an impeller air feeding outer flow passage communicating with the compressor outer flow passage.   
     
     
         7 . The compressor of  claim 6 , wherein
 a partition wall is disposed inside an air inlet channel between the compressor impeller and the compressor air inlet;   the partition wall is circumferentially arranged and extends in an axial direction; and   the partition wall divides the air inlet channel between the compressor impeller and the compressor air inlet into an inner channel of the compressor air inlet and an outer channel of the compressor air inlet.   
     
     
         8 . The compressor of  claim 7 , wherein the outer channel of the compressor air inlet is disposed outside an outer circumference of the inner channel of the compressor air inlet. 
     
     
         9 . The compressor of  claim 8 , wherein
 the inner channel of the compressor air inlet is corresponding to and communicates with the impeller air feeding inner flow passage; and   the outer channel of the compressor air inlet is corresponding to and communicates with the impeller air feeding outer flow passage.   
     
     
         10 . The compressor of  claim 9 , wherein
 a distance H between one end of the partition wall in the vicinity of the compressor air inlet and the impeller gas inlet is between 60 and 100 mm; and   a distance h between one end of the partition wall in the vicinity of the compressor air inlet and the compressor gas inlet is between 5 and 20 mm.   
     
     
         11 . The compressor of  claim 10 , wherein a plurality of fixed guide vanes is uniformly disposed inside the outer channel of the compressor air inlet. 
     
     
         12 . The compressor of  claim 11 , wherein the outer channel of the compressor air inlet, the impeller air feeding outer flow channel, and the compressor outer flow passage are normal open flow passages. 
     
     
         13 . The compressor of  claim 12 , wherein
 a butterfly valve matching with the inner channel of the compressor air inlet is disposed inside the inner channel of the compressor air inlet in the vicinity of the compressor air inlet;   the butterfly valve is provided with a valve shaft, and the valve shaft is integrated to the butterfly valve;   the valve shaft is in transmission connection with a control mechanism; and   the butterfly valve is driven by the control mechanism to rotate along the valve shaft whereby opening or closing the inner channel of the compressor air inlet.   
     
     
         14 . The compressor of  claim 12 , wherein
 an adjustable valve is disposed inside the compressor inner flow passage in the vicinity of the air outlet of the compressor inner flow passage;   one end of the adjustable valve is connected to a valve shaft;   the valve shaft is in transmission connection with a control mechanism; and   the adjustable valve is driven by the control mechanism to rotate along the valve shaft whereby opening or closing the compressor inner flow passage.   
     
     
         15 . The compressor of  claim 12 , wherein
 a plurality of adjustable guide vanes is uniformly disposed in a circle inside the compressor diffuser in the vicinity of the impeller air outlet; and   a ratio of a number of the fixed guide vanes to a number of the adjustable guide vanes is between 0.2 and 6.   
     
     
         16 . The compressor of  claim 15 , wherein
 each adjustable guide vane is in rotary connection with a fork lever;   the fork level is in rotary connection with a fork plate; and   the fork plate is driven by a control mechanism to rotate so as to achieve rotation of the adjustable guide vanes and to open or close the compressor inner flow passage.   
     
     
         17 . The compressor of  claim 10 , wherein the inner channel of the compressor air inlet, the impeller gas feeding inner flow channel, and the compressor inner flow passage are normal open flow passages. 
     
     
         18 . The compressor of  claim 17 , wherein
 a plurality of adjustable guide vanes is uniformly disposed inside the outer channel of the compressor air inlet in the vicinity of the impeller air inlet;   each adjustable guide vane matches with a corresponding gear;   the gear is correspondingly provided with a gear disk; and   the gear disk is driven by a control mechanism to rotate so as to achieve rotation of the adjustable guide vane and to open or close the outer channel of the compressor air inlet.   
     
     
         19 . The compressor of  claim 17 , wherein
 an adjustable valve is disposed inside the compressor outer flow passage in the vicinity of the outlet of the compressor outer flow passage;   one end of the adjustable valve is connected to a valve shaft;   the valve shaft is in transmission connection with a control mechanism; and   the adjustable valve is driven by the control mechanism to rotate along the valve shaft whereby opening or closing the compressor outer flow passage.