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Title:
CYLINDER-INJECTION TYPE INTERNAL COMBUSTION ENGINE, METHOD OF CONTROLLING THE ENGINE, AND FUEL INJECTION NOZZLE
Document Type and Number:
WIPO Patent Application WO/1999/067514
Kind Code:
A1
Abstract:
A cylinder-injection type internal combustion engine capable of performing a stratified operation in running at a speed of 120 km/h and/or at an engine speed of 3200 rpm so as to improve a fuel efficiency and/or clear off an emission control, wherein an air and/or air flow layer is formed between an atomized fuel sprayed from an injection nozzle and the upper surface of a piston and/or an inside wall surface of a combustion chamber, and an improved surface form to guide the air flow is formed on the upper surface of the piston, whereby the stratified operation is enabled even at a cold start or cranking.

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Inventors:
SHIRAISHI TAKUYA (JP)
NOGI TOSHIHARU (JP)
OSUGA MINORU (JP)
NAKAYAMA YOKO (JP)
TOKUYASU NOBORU (JP)
Application Number:
PCT/JP1999/003300
Publication Date:
December 29, 1999
Filing Date:
June 22, 1999
Export Citation:
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Assignee:
HITACHI LTD (JP)
SHIRAISHI TAKUYA (JP)
NOGI TOSHIHARU (JP)
OSUGA MINORU (JP)
NAKAYAMA YOKO (JP)
TOKUYASU NOBORU (JP)
International Classes:
F02B17/00; F02B23/10; F02B31/08; F02D41/00; F02D41/06; F02F1/42; F02M61/16; F02M61/18; F02M69/04; F02B75/12; F02D41/30; F02D41/40; F02F1/24; (IPC1-7): F02B23/10; F02M61/14; F02M61/18; F02D41/02; F02D41/04
Domestic Patent References:
WO1996036808A11996-11-21
Foreign References:
JPH0681656A1994-03-22
JPH09317479A1997-12-09
JPH0914103A1997-01-14
JPH11193722A1999-07-21
JPH11141338A1999-05-25
JPH06108852A1994-04-19
JPH10159621A1998-06-16
JPH0979081A1997-03-25
JPH1162787A1999-03-05
JPH08246936A1996-09-24
JPH10122096A1998-05-12
JPH10184489A1998-07-14
JPH06299932A1994-10-25
JPH07243368A1995-09-19
JPH07246352A1995-09-26
JPH1122534A1999-01-26
JPH1061483A1998-03-03
JPH06123245A1994-05-06
JPH1089127A1998-04-07
JPH07293304A1995-11-07
JPH10299539A1998-11-10
JPH1136959A1999-02-09
JPH09317505A1997-12-09
JPH1030441A1998-02-03
JPH01267328A1989-10-25
JPH07119507A1995-05-09
JPH0681656A1994-03-22
JPH10110660A1998-04-28
JPH07293259A1995-11-07
JPH1030441A1998-02-03
JPH10169447A1998-06-23
JPH10896A1998-01-06
US5850816A1998-12-22
Other References:
"Society of Automotive Engineers of Japan Annual Proceedings 976, paper 9740307", October 1997
Attorney, Agent or Firm:
Asamura, Kiyoshi (Ohtemachi 2-chome Chiyoda-ku Tokyo, JP)
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