Fuel injection control device for a direct injection type engine

Details Fuel injection control device for a direct injection type engine Fuel injection control device for a direct injection type engine

1997-08-15

1998-11-24

Argenbright, Tony M.

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60284, 123300, F01N 320, F02D 4134

Patent

active

058392750

ABSTRACT:
A fuel injection control device for a direct injection type engine having an exhaust passage and a NO.sub.x catalyst arranged therein to purify NO.sub.x in exhaust gas discharged from the engine comprises fuel injectors for injecting fuel into a cylinder. The injecting operation of the fuel injectors is controlled to carry out a main fuel injection at the latest at the beginning of a power stroke of the engine. The injecting operation of the fuel injectors is controlled to carry out a sub fuel injection at one of a power stroke and an exhaust stroke of the engine after the main fuel injection is completed to increase an amount of hydrocarbon in the exhaust gas. The injecting operation of the fuel injectors is controlled to carry out an additional sub fuel injection after the main fuel injection is completed and before the sub fuel injection is carried out.

REFERENCES:
patent: 4452040 (1984-06-01), Kobashi
patent: 5343702 (1994-09-01), Miyajima et al.
patent: 5479775 (1996-01-01), Kraemer et al.
patent: 5642705 (1997-07-01), Morikawa et al.

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