Supercharged internal combustion engine

Details Supercharged internal combustion engine Supercharged internal combustion engine

1992-09-23

1994-05-10

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

606052, F02B 3342

Patent

active

053098862

ABSTRACT:
The supercharged internal combustion engine is so adapted as to set the air-fuel ratio to become a lean air-fuel ratio which is leaner than stoichiometric and lean enough to maximize improvements in a rate of consumption of fuel, for example, to the A/F ratio of 16, when the supercharger exists in such a supercharging region as demonstrating its sufficient degree of supercharging capability. When the air-fuel ratio is made lean in the supercharging region, exhaust gases are recirculated into the intake system of the engine, in addition to a mixed fuel. Preferably, the exhaust gases having lower temperatures are recirculated at the time of a high load of the engine in the supercharging region, while the exhaust gases having higher temperatures are recirculated at the time of a low load of the engine therein.

REFERENCES:
patent: 4279235 (1981-07-01), Flaig et al.
patent: 4323045 (1982-04-01), Yamashita
patent: 4399774 (1983-08-01), Tsutsumi
patent: 4702218 (1987-10-01), Yoshioka et al.
patent: 4722315 (1988-02-01), Pickel

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