SPARK IGNITION ENGINE OF FUEL CYLINDER INJECTION TYPE

Title:

SPARK IGNITION ENGINE OF FUEL CYLINDER INJECTION TYPE

Document Type and Number:

Japanese Patent JP3852230

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To secure an optimal intake air fluidity in a cylinder for every driving condition and to improve various performances by employing two-fluid type fuel injection valve independently injecting the fuel and a pressure air and providing a means variably controlling the injection timing and period of the pressure air in a stratified combustion drive and homogeneous combustion drive.
SOLUTION: A two-fluid type fuel injection valve independently injection fuel and a pressure air is used for a fuel injection valve 10 and controlled by an engine control unit 11 (ECU). The ECU 11 controls an ignition plug 9 and a fuel injection valve 10 based on air volume signal detected by an air flowmeter in a intake passage 12, and load signals detected by a throttle sensor of a throttle valve 14. The ECU 11 has a pressure air injection period variable means 11A and a pressure air injection timing variable means 11B arranged therein in a form of software. This constitution can changed the injection timing and period of the pressure air according to respective driving conditions of a stratified combustion drive and a homogeneous combustion drive.

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Inventors:

Tsuyoshi Taniyama
Yoshizawa Kodai
Takayuki Arai

Application Number:

JP35344098A

Publication Date:

November 29, 2006

Filing Date:

December 11, 1998

Export Citation:

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Assignee:

Nissan Motor Co., Ltd

International Classes:

F02B17/00; F02B23/10; F02B31/00; F02D21/10; F02D41/02; F02M51/00; F02M67/02; F02B75/12; (IPC1-7): F02M67/02; F02B17/00; F02B23/10; F02B31/00; F02D21/10; F02D41/02; F02M51/00

Domestic Patent References:

JP4237822A
JP2000161093A
JP4031649A
JP4101062A
JP7133724A
JP8068331A
JP9217638A
JP10184489A
JP10325318A

Attorney, Agent or Firm:

Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu

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