Internal combustion engine with exhaust gas turbocharger

Details Internal combustion engine with exhaust gas turbocharger Internal combustion engine with exhaust gas turbocharger

1997-09-24

2000-02-01

Kamen, Noah P.

Power plants

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

With supercharging means for engine

60280, F01N 504

Patent

active

060189495

ABSTRACT:
In an internal combustion engine with an exhaust gas turbocharger having an exhaust gas turbine arranged in an engine exhaust pipe upstream of a catalytic converter and a bypass line branching off the exhaust pipe upstream of the exhaust gas turbine and rejoining the exhaust pipe between the exhaust gas turbine and the catalytic converter, a bypass valve is provided which is so controlled that, after startup of the internal combustion engine, the bypass valve is, during a catalytic converter heat-up period, at least partially opened when the internal combustion engine load is below a predetermined value and is only closed when the engine load is above the predetermined value.

REFERENCES:
patent: 4235076 (1980-11-01), Meloche et al.
patent: 4356695 (1982-11-01), Sumi et al.
patent: 4437311 (1984-03-01), Iwamoto et al.

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