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Title:
FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2004044453
Kind Code:
A
Abstract:

To improve exhaust emission by restraining uneven combustion inside a combustion chamber.

This fuel injection control device for internal combustion engine comprises: a first fuel injection valve arranged to a first inlet port to form flow to an inner periphery of a cylinder, and injecting a fuel of large grain diameter; a second fuel injection valve arranged to a second inlet port so as to form flow to an inner and outer peripheries of the cylinder, and injecting a fuel of small grain diameter; and a direct fuel injection valve for injecting fuel inside the cylinder. After the fuel is injected from the second fuel injection valve at end of an exhaust stroke, VIGOM injection by the direct fuel injection valve is performed, and then the fuel is injected from the first fuel injection valve, and thereafter, the fuel is injected from a fuel injection valve inside the cylinder at a top dead center or near a top dead center.


Inventors:
HASEGAWA AKIRA
FUJIWARA KIYOSHI
MATSUMOTO TAKASHI
Application Number:
JP2002201564A
Publication Date:
February 12, 2004
Filing Date:
July 10, 2002
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02B23/08; F02B47/02; F02D19/08; F02D41/02; F02D41/40; F02M25/022; F02M37/00; F02M43/00; F02M45/02; F02M47/00; F02M63/00; (IPC1-7): F02D41/40; F02B23/08; F02B47/02; F02D19/08; F02D41/02; F02M25/022; F02M37/00; F02M43/00; F02M45/02; F02M47/00; F02M63/00
Attorney, Agent or Firm:
Tsutomu Toyama
Hidemi Matsukura
Yutaka Nagata
Yoshiyuki Kawaguchi