Title:
予混合圧縮着火式エンジンの制御装置
Document Type and Number:
Japanese Patent JP6493442
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress a cooling loss while suppressing the generation of NOx.SOLUTION: When an engine is operated in a first operation region in which a load is not smaller than a prescribed value, fuel and water are injected from a fuel injection valve 11 and a water injection valve 57 at timing at which at least a part of a period of fuel injection and that of water injection are overlapped on each other so that fuel and water are unevenly distributed in a center part of a combustion chamber 10 immediately before the fuel is self-ignited. When the engine is operated in a second region in which the load is smaller than that in the first operation region, the fuel is injected from the fuel injection valve 11 at timing at which at least a part of the period of the fuel injection is included in a latter half of a compression stroke so that the fuel is unevenly distributed in the center part of the combustion chamber immediately before the self-ignition, and the water injection from the water injection valve 57 is stopped.SELECTED DRAWING: Figure 2
Inventors:
Yuji Harada
Yuri Seto
Takeshi Nagasawa
Keisuke Okihama
Yuri Seto
Takeshi Nagasawa
Keisuke Okihama
Application Number:
JP2017070351A
Publication Date:
April 03, 2019
Filing Date:
March 31, 2017
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D19/12; F02B23/10; F02B47/02; F02D21/08; F02D41/02; F02D41/40; F02M25/03; F02M26/00
Domestic Patent References:
| JP2017025772A | ||||
| JP2017025775A | ||||
| JP2013194712A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato
Masataka Otani
Ko Sato