Internal combustion engine with a dual turbocharger system

Details Internal combustion engine with a dual turbocharger system Internal combustion engine with a dual turbocharger system

1991-06-11

1992-10-13

Koczo, Michael

Power plants

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

With supercharging means for engine

60600, F02B 3712

Patent

active

051540584

ABSTRACT:
An internal combustion engine including a first turbocharger operated at all intake air quantities and a second turbocharger operated only at large air intake air quantities, an intake switching valve located downstream of the compressor of the second turbocharger, an exhaust switching valve located downstream of the turbine of the second turbocharger, and an exhaust bypass valve for bypassing the exhaust switching valve. For the purpose of running-up the second turbocharger before the operation is changed from a "one-turbocharger-operation" to a "two-turbocharger-operation", the exhaust bypass valve is partially opened and then the amount by which the exhaust bypass valve is opened is gradually increased until it is fully opened so that any torque shock accompanying the operational change is effectively suppressed.

REFERENCES:
patent: 3038297 (1962-06-01), Kauffmann
patent: 4474008 (1984-10-01), Sakurai et al.
patent: 4781027 (1988-11-01), Richter et al.
patent: 4793140 (1988-12-01), Esch
patent: 4982567 (1991-01-01), Hashimoto et al.
patent: 4993228 (1991-02-01), Tashima et al.
patent: 5003781 (1991-04-01), Shibata et al.
patent: 5005359 (1991-04-01), Tashima et al.
patent: 5035114 (1991-07-01), Shibata et al.
patent: 5036663 (1991-08-01), Akagi et al.
patent: 5081842 (1992-01-01), Sugiyama et al.
patent: 5095703 (1992-03-01), Okimoto et al.

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