Title:
ディーゼルエンジンの燃料噴射制御装置
Document Type and Number:
Japanese Patent JP7189488
Kind Code:
B2
Abstract:
To suppress the generation of soot or others to the utmost by making effective use of air in a combustion chamber part of which is defined by a crown surface having cavities to form homogeneous and lean air-fuel mixture.SOLUTION: The bottom surface of a combustion chamber 6 of a diesel engine to be controlled is defined by a crown surface 50 including first and second cavity parts 51, 52, and a connection part 53 connecting both of them. A fuel injection control part 71 allows an injector 15 to execute main injection P1 or a pilot injection P2 directed to the connection part 53, and low penetration injection P4 serving as fuel injection in a PILOT region at an earlier timing than the pilot injection P2 or in an AFTER region at a later timing than the main injection P1. The fuel injection control part 71 advances the timing for the low penetration injection P4 when a supercharging pressure is low further, compared to when it is high.SELECTED DRAWING: Figure 18
Inventors:
Naotoshi Shirahashi
Tsunehiro Mori
Akiaki Iwata
Takeshi Matsubara
Kim Nao
Tsunehiro Mori
Akiaki Iwata
Takeshi Matsubara
Kim Nao
Application Number:
JP2018122995A
Publication Date:
December 14, 2022
Filing Date:
June 28, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/40; F02B23/06; F02D41/38; F02F3/26
Domestic Patent References:
| JP2016151236A | ||||
| JP2012241638A | ||||
| JP2015129496A |
Attorney, Agent or Firm:
Masataka Kotani
Haruhiro Hirata
Haruhiro Hirata
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