Supercharged lean burn internal combustion engine

Details Supercharged lean burn internal combustion engine Supercharged lean burn internal combustion engine

1990-06-11

1992-06-30

Koczo, Michael

Power plants

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

With supercharging means for engine

60611, 123492, F02D 2302

Patent

active

051252350

ABSTRACT:
A turbocharged internal combustion engine for a spark ignition internal combustion engine using gasoline as the fuel is disclosed. An intake system is constructed for the generation of a homogeneous flow of the intake air. The turbocharger is constructed to obtain a ratio of a pressure at the output to the pressure at the input higher than at least 1.5. A lean combustible mixture is obtained at a high engine load or engine speed area whereat the turbocharger can obtain a full supercharging ability. A relationship between the degree of supercharging is such that the larger that value of the air-fuel ratio, the higher the intake pressure. A high fuel consumption efficiency is obtained while preventing an excessive increase of the exhaust gas temperature.

REFERENCES:
patent: 4400944 (1983-08-01), Iwamoto et al.
patent: 4408585 (1983-10-01), Stuckas
patent: 4450814 (1984-05-01), Sawamoto et al.
patent: 4873961 (1989-10-01), Tanaka

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