Method for controlling the fuel supply for an internal combustio

Details Method for controlling the fuel supply for an internal combustio Method for controlling the fuel supply for an internal combustio

1996-04-30

1997-04-08

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60284, 60286, 60289, 60300, F01N 320

Patent

active

056177208

ABSTRACT:
An internal combustion engine is equipped with a lambda regulating device, a catalytic converter disposed in an exhaust pipe of the internal combustion engine, a device for externally heating the catalytic converter to its operating temperature, and a secondary-air pump which injects additional air into the exhaust pipe. A method for controlling the fuel supply for the internal combustion engine includes injecting an additional fuel quantity during operation of a burner and during secondary-air injection, for heating the catalytic converter, as a function of engine air mass flow and an additional secondary-air quantity which is injected into the exhaust system.

REFERENCES:
patent: 3696618 (1972-10-01), Boyd
patent: 3945204 (1976-03-01), Knapp
patent: 4615173 (1986-10-01), Usui
patent: 5353591 (1994-10-01), Kabasin
patent: 5417059 (1995-05-01), Hartel

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