Turbocharger compressor end ventilation system

Details Turbocharger compressor end ventilation system Turbocharger compressor end ventilation system

1982-04-21

1984-11-06

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

417407, F02B 3704

Patent

active

044804407

ABSTRACT:
This relates to improvements in turbochargers and more particularly to the venting of the bearing housing of a turbocharger adjacent the compressor 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.

REFERENCES:
patent: 3077296 (1963-02-01), Ping, Jr.
patent: 3834156 (1974-09-01), Cutler et al.

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