Turbocharged internal combustion engine

Details Turbocharged internal combustion engine Turbocharged internal combustion engine

1991-07-15

1992-11-03

Koczo, Michael

Power plants

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

With supercharging means for engine

123383, F02B 3712, F02D 2302

Patent

active

051598159

ABSTRACT:
A turbocharger for an internal combustion engine is provided having a turbine section responsive to the engine exhaust gas flow and a compressor section communicating with the engine intake manifold. A pressure responsive adjustable fuel pump is in communication with the engine combustion chambers. A wastegate unit with an adjustable valve disposed within a bypass passageway formed in the turbine section is provided for regulating the diverion of a predetermined amount of exhaust gas flow away from a turbine wheel within the section. The unit valve is biased to assume a closed position with respect to the bypass passageway. A multiport connection having an interior cavity is provided with a first port in pressure communication with the fuel pump; a second port in pressure communication with the intake manifold; and a third port in pressure communication with the wastegate unit. When pressure within the connection cavity is below a predetermined amount, the bias on the unit adjustable valve will close the secondary passageway and the fuel pump responsive to the reduced cavity pressure reduces the fuel flow to the engine and the speed of the turbocharger turbine wheel.

REFERENCES:
patent: 4512152 (1985-04-01), Asaba

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