Vehicle engine with turbine bypass for exhaust treatment device

Details Vehicle engine with turbine bypass for exhaust treatment device Vehicle engine with turbine bypass for exhaust treatment device

1979-03-30

1981-01-13

Koczo, Michael

Power plants

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

With supercharging means for engine

60284, 60280, F01N 504, F02B 3700

Patent

active

042441870

ABSTRACT:
In a preferred embodiment applied to an automotive vehicle engine with an exhaust turbocharger and an exhaust treatment device operative at elevated temperature and located after the turbine in the exhaust system, warm-up of the treatment device is speeded by a bypass system and valve that cuts off exhaust gas flow through the turbine and supplies the engine exhaust directly to the treatment device until its operating temperature is reached, after which the bypass is closed and normal flow through the turbine is provided. Additional features are also described.

REFERENCES:
patent: 3173242 (1965-03-01), Erickson
SAE Paper No. 780718, "Turbocharging Engines for Racing and Passenger Cars", Mezger, Aug. 7, 1978.

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