Title:
Direct injection gasoline engine
Document Type and Number:
Japanese Patent JP6248579
Kind Code:
B2
Abstract:
A gasoline direct-injection engine is provided. The engine causes a self-ignition of a fuel injected into a cylinder by an injector and at least containing gasoline. The engine includes a controller for controlling the fuel injection by the injector. A geometric compression ratio of the engine is 15:1 or higher. The controller causes the injector to perform a pre-injection for keeping a variation of an in-cylinder temperature after a compression top dead center within a predetermined temperature range by injecting an amount of the fuel that causes an oxidative reaction without resulting in a hot flame reaction. The controller causes the injector to perform a main injection for causing self-ignition combustion of the fuel after the compression top dead center while the variation of the in-cylinder temperature is kept within the predetermined temperature range, by injecting the fuel after the pre-injection.
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Inventors:
Masahiko Fujimoto
Takahashi Takuho
Yoshiyuki Koga
Hiroyuki Yamashita
Takahashi Takuho
Yoshiyuki Koga
Hiroyuki Yamashita
Application Number:
JP2013244883A
Publication Date:
December 20, 2017
Filing Date:
November 27, 2013
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/02; F02B1/12; F02B11/00; F02B23/10; F02D45/00
Domestic Patent References:
| JP2013064387A | ||||
| JP2009299496A | ||||
| JP2013160047A | ||||
| JP2013204521A | ||||
| JP2012197677A | ||||
| JP2010216270A | ||||
| JP2007032473A |
Foreign References:
| WO2011061851A1 |
Attorney, Agent or Firm:
Maeda patent office