Process for regulating the fuel/air ratio in internal combustion

Details Process for regulating the fuel/air ratio in internal combustion Process for regulating the fuel/air ratio in internal combustion

1989-11-08

1991-06-25

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, F01N 320

Patent

active

050256246

ABSTRACT:
In a process for regulating the fuel/air ratio in internal combustion engines having an exhaust gas measuring probe and a catalyst, the fuel/air mixture fed to the internal combustion engine via a proportioning device being regulated to a virtually stoichiometric value in a control unit with variable characteristics as a function of the exhaust gas composition detected by the measuring probe, the characteristics of the control unit are variable in dependence on the operating time of the catalyst.

REFERENCES:
patent: 4461258 (1984-07-01), Becker
patent: 4509327 (1985-04-01), Enga
patent: 4617794 (1986-10-01), Fujitani
patent: 4651695 (1987-03-01), Ohtaki

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