CYLINDER INJECTION OF FUEL TYPE SPARK IGNITION INTERNAL COMBUSTION ENGINE

Title:

CYLINDER INJECTION OF FUEL TYPE SPARK IGNITION INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP3546649

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To sufficiently reduce fuel consumption by enlarging a stratified combustive area, by increasing air intake by an intake increasing means when the necessary fuel amount determined on the basis of at least the engine operating condition exceeds a specific amount, for the stratified combustion which realizes the leans burn with low fuel consumption.
SOLUTION: When an amount of fuel injection from a fuel injection valve 1e is smaller than a specific amount, the injected fuel is completely vaporized, and an air-fuel mixture of high ignitability, comprising the vaporized fuel and the intake, is formed near an ignition plug 1a at an ignition time, whereby the stratified combustion of low fuel consumption is performed. But when the fuel injection amount exceed the specific amount, the air intake amount per unit fuel is reduced, and the injected fuel can not get sufficient heat from the intake, so that the supercharging is executed by a turbocharger 4 to increase the intake amount corresponding to an amount exceeding the specific amount. Whereby the intake amount per unit fuel can be kept in the same condition as the time when the fuel injection amount is equal to the specific amount, and the injected fuel can be vaporized in a short time.

More Like This:

JP2003227339	COMBUSTION CHAMBER STRUCTURE OF SPARK IGNITION TYPE DIRECT INJECTION ENGINE
JPH06272643	FUEL SUPPLY DEVICE FOR ENGINE
JP4162189	Exhaust gas recirculation system

Inventors:

Akitoshi Tomoda
Mutsumi Kanda
Toshimi Kashiwakura
Fumiaki Hattori
Hiroyuki Northeast

Application Number:

JP19023597A

Publication Date:

July 28, 2004

Filing Date:

July 15, 1997

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA

International Classes:

F02B17/00; F02B23/10; F02B37/12; F02D23/02; F02D41/02; F02D43/00; F02B75/12; (IPC1-7): F02B17/00; F02B23/10; F02B37/12; F02D23/02; F02D41/02; F02D43/00

Domestic Patent References:

JP5005451A
JP4241751A
JP5248277A
JP11022476A
JP63215817A
JP63215815A

Attorney, Agent or Firm:

Takashi Ishida
Jun Tsuruta
Toshio Toda
Masaya Nishiyama

Previous Patent: HOOP MATERIAL SEALER

Next Patent: LIGHT-EMITTING DIODE AND METHOD FOR FORMING LED INDICATOR