Turbocharger compressor end ventilation system

Details Turbocharger compressor end ventilation system Turbocharger compressor end ventilation system

F - Mech Eng,Light,Heat,Weapons

02

B

60/15

F02B 37/00 (2006.01) F01D 25/18 (2006.01) F02B 39/14 (2006.01)

Patent

CA 1206762

ABSTRACT TURBOCHARGER COMPRESSOR END VENTILATION SYSTEM This relates to improvements in turbo- chargers and more particularly to the venting of the bearing housing of a turbocharger adjacent the com- pressor housing. Under certain operating conditions, insufficient air is available for the compressor intake, with the result that the compressor draws a vacuum within the compressor housing and causes an undesirable flow of lubricant from the turbocharger bearings to the compressor discharge. This vacuum is applied to the interior of the bearing housing in the general area of the oil deflector and thrust bearing. A vent passage is formed through the oil deflector and the thrust bearing and down between the thrust bearing and bearing support so as to vent that portion of the bearing housing to the lubricant drain cavity, and thereby inhibit undesirable lubricant flow to the compressor discharge.

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