Casing of a turbocharger

Abstract

A casing of a turbocharger has a main body and a heat dissipating layer disposed on an outer surface of the main body. When heat inside the main body is conducted to the outer surface of the main body, the heat dissipating layer dissipates the heat quickly. Since the heat does not accumulate in the main body, temperature of the main body is low and the casing does not oxidize under high temperature. Therefore, the casing of the turbocharger has low manufacturing cost and is economical.

What is claimed is: 
     
         1 . A casing of a turbocharger comprising:
 a main body being hollow and having an outer surface; and   a heat dissipating layer disposed on the outer surface of the main body.   
     
     
         2 . The casing of the turbocharger as claimed in  claim 1 , wherein the heat dissipating layer is coated on the outer surface of the main body. 
     
     
         3 . The casing of the turbocharger as claimed in  claim 1 , wherein the outer surface of the main body is rough. 
     
     
         4 . The casing of the turbocharger as claimed in  claim 2 , wherein the outer surface of the main body is rough. 
     
     
         5 . The casing of the turbocharger as claimed in  claim 1 , wherein the heat dissipating layer comprises multiple carbon nanocapsules (CNCs). 
     
     
         6 . The casing of the turbocharger as claimed in  claim 2 , wherein the heat dissipating layer comprises multiple carbon nanocapsules (CNCs). 
     
     
         7 . The casing of the turbocharger as claimed in  claim 3 , wherein the heat dissipating layer comprises multiple carbon nanocapsules (CNCs). 
     
     
         8 . The casing of the turbocharger as claimed in  claim 4 , wherein the heat dissipating layer comprises multiple carbon nanocapsules (CNCs). 
     
     
         9 . The casing of the turbocharger as claimed in  claim 6 , wherein an amount of the CNCs is 7 weight percent (wt %) of the heat dissipating layer. 
     
     
         10 . The casing of the turbocharger as claimed in  claim 8 , wherein an amount of the CNCs is 7 wt % of the heat dissipating layer. 
     
     
         11 . The casing of the turbocharger as claimed in  claim 9 , wherein a thickness of the heat dissipating layer is 20 μm to 80 μm. 
     
     
         12 . The casing of the turbocharger as claimed in  claim 10 , wherein a thickness of the heat dissipating layer is 20 μm to 80 μm. 
     
     
         13 . The casing of the turbocharger as claimed in  claim 11 , wherein a thickness of the heat dissipating layer is 50 μm. 
     
     
         14 . The casing of the turbocharger as claimed in  claim 12 , wherein a thickness of the heat dissipating layer is 50 μm.