Exhaust-gas turbocharger for the two-stage supercharging of an i

Details Exhaust-gas turbocharger for the two-stage supercharging of an i Exhaust-gas turbocharger for the two-stage supercharging of an i

1986-04-10

1988-06-21

Casaregola, Louis J.

Pumps

Motor driven

Fluid motor

184 611, F04B 1700

Patent

active

047521937

ABSTRACT:
In order to prevent losses of lubricant in the bearing housing of the high-pressure stage of an exhaust-gas turbocharger for two-stage supercharging, the interior space of the bearing housing is conductively connected via a blocking air ring duct, pipes connected to the latter and a balancing pipe, to the low pressure boost air pipe in front of the high-pressure compressor. An alternate connection between the bearing housing and the low-pressure boost air pipe may be made via an oil return pipe to a lubricating oil tank and a balancing pipe between the lubricating oil tank and the low-pressure boost air pipe.

REFERENCES:
patent: 2604188 (1952-07-01), Marchant
patent: 2646212 (1953-07-01), Kellie
patent: 3250068 (1966-05-01), Vulliamy
patent: 4142608 (1979-03-01), Sarle

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