Vehicle engine having turbocharger bypass with boost control and

Details Vehicle engine having turbocharger bypass with boost control and Vehicle engine having turbocharger bypass with boost control and

1979-05-03

1980-11-25

Koczo, Michael

Power plants

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

With supercharging means for engine

60280, 60284, F01N 504, F02B 3700

Patent

active

042350760

ABSTRACT:
An automotive vehicle having a turbocharged internal combustion engine and a heat initiated exhaust treatment device, such as a catalytic converter, in the exhaust system is provided with a multiple function turbine bypass valve with controls that provide bypass of the exhaust gases directly to the treatment device during warm-up and also provide a boost controlling wastegate function that limits the turbocharger boost pressure during normal operation. Full throttle bypass override to provide turbocharger boost during warm-up as well as other control and operating functions are also disclosed.

REFERENCES:
patent: 3173242 (1965-03-01), Erickson
patent: 4075849 (1978-02-01), Richardson
SAE Paper No. 780718, "Turbocharging Engines for Racing and Passenger Cars", Mezger, 7 Aug. 1978.

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