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Title:
内燃機関
Document Type and Number:
Japanese Patent JP4254504
Kind Code:
B2
Abstract:

To provide technology for changing the concentration distribution of EGR gas in cylinders of an internal combustion engine.

The internal combustion engine comprises an exhaust gas introduction hole 15 for introducing only part of exhaust gas into the cylinders 2 of the internal combustion engine 1 to set the direction of the exhaust gas flowing thereinto so that the exhaust gas introduced into the cylinders 2 has predetermined concentration distribution. Differently from EGR that intake air and the exhaust gas being mixed are introduced into the cylinders 2, the exhaust gas is introduced directly into the cylinders 2 to form the exhaust gas with high and low concentration portions as a result of of less mixture of intake air and the exhaust gas. The formation of this concentration distribution of the exhaust gas permits an intentional change in the ignition timing and combustion speed of the mixture.

COPYRIGHT: (C)2004,JPO&NCIPI


Inventors:
Takashi Koyama
Koji Kitano
Hisato Ito
Kiyo Fujiwara
Takayuki Matsumoto
Ryo Hasegawa
Seitaro Misawa
Application Number:
JP2003395458A
Publication Date:
April 15, 2009
Filing Date:
November 26, 2003
Export Citation:
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Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02B17/00; F02M25/07; F02B11/00; F02D21/08; F02D41/02; F02D45/00
Domestic Patent References:
JP8232768A
JP2002519556A
JP658147U
JP658148U
JP658149U
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Hidemi Matsukura
Yutaka Nagata
Kazunobu Sera
Tsutomu Toyama