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Patent Searching and Data


Title:
COMPRESSION IGNITION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/221511
Kind Code:
A1
Abstract:
A compression ignition engine is provided with: a first fuel supply unit 19 that supplies naphtha; a second fuel supply unit 18 that supplies diesel fuel; EGR gas recirculation units 51, 51a that recirculate exhaust gas to a combustion chamber 14a; and a control unit 10 for controlling the aforementioned components. The control unit 10 determines whether the operating range of an engine body 1 is a low load range or a high load range. When in the low load range, the control unit 10 outputs a control signal to the first fuel supply unit 19 indicating that at least naphtha is to be supplied and, when the air-fuel ratio enters the range of 14.5-15.0, outputs a control signal to the EGR gas recirculation unit 51a indicating that the EGR rate is to be set so as to be higher than when in the high load range.

Inventors:
HITOMI Mitsuo (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
YAMAMOTO Hiroyuki (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
YAMAMOTO Toshihide (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
FUJIMOTO Hidefumi (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
Application Number:
JP2018/020548
Publication Date:
December 06, 2018
Filing Date:
May 29, 2018
Export Citation:
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Assignee:
MAZDA MOTOR CORPORATION (3-1 Shinchi, Fuchu-cho Aki-gu, Hiroshima 70, 〒7308670, JP)
International Classes:
F02D19/08; F02D13/02; F02D21/08; F02D41/02; F02D41/04
Foreign References:
JP2001355523A2001-12-26
JP2015098800A2015-05-28
JP2009221240A2009-10-01
JP2007091819A2007-04-12
JPH0996256A1997-04-08
JP2001512208A2001-08-21
JP2003532828A2003-11-05
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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