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Title:
INTERNAL COMBUSTION ENGINE, CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE, AND ITS CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/1999/047800
Kind Code:
A1
Abstract:
The volume of intake air is controlled for each cylinder to make the torque generated by each cylinder controllable, ultra-lean-burn operation is possible, exhaust gas is cleaned, and the power output of the engine is increased. Specifically, each branch pipe or each air intake port is provided with an air volume control valve whose opening/closing is controlled according to the degree to which the accelerator is operated. This air volume control valve may be either a throttle valve provided for each branch pipe or a variable intake valve for opening/closing the air intake port.

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Inventors:
NOGI TOSHIHARU (JP)
SHIRAISHI TAKUYA (JP)
OHSUGA MINORU (JP)
NAKAYAMA YOUKO (JP)
TOKUYASU NOBORU (JP)
Application Number:
PCT/JP1998/001192
Publication Date:
September 23, 1999
Filing Date:
March 19, 1998
Export Citation:
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Assignee:
HITACHI LTD (JP)
NOGI TOSHIHARU (JP)
SHIRAISHI TAKUYA (JP)
OHSUGA MINORU (JP)
NAKAYAMA YOUKO (JP)
TOKUYASU NOBORU (JP)
International Classes:
F01L9/20; F02B27/02; F02B29/08; F02D13/02; F02D41/00; F02D41/34; F02B23/10; F02B75/12; F02F3/26; (IPC1-7): F02D13/02; F02D41/04; F02D9/02; F02B29/08
Foreign References:
JPH1037727A1998-02-10
JPH08232694A1996-09-10
JPH07133742A1995-05-23
JPH07229441A1995-08-29
JPH06213044A1994-08-02
JPH01104928A1989-04-21
JPH04219427A1992-08-10
JPH06272580A1994-09-27
JPH05106505A1993-04-27
JPH06117283A1994-04-26
JPH074302A1995-01-10
JPH03164537A1991-07-16
JPH04183942A1992-06-30
JPH10110647A1998-04-28
JPH0626314A1994-02-01
JPS5542247B21980-10-29
JPS60116842A1985-06-24
JPH01271634A1989-10-30
Attorney, Agent or Firm:
Ogawa, Katsuo (5-1, Marunouchi 1-chom, Chiyoda-ku Tokyo, JP)
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