Title:
CONTROL DEVICE OF HOMOGENEOUS CHARGE COMPRESSION IGNITION TYPE ENGINE
Document Type and Number:
Japanese Patent JP2018172999
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To perform proper HCCI combustion which is suppressed in a generation amount of soot and combustion noise in a wide load range, in a homogeneous charge compression ignition type engine.SOLUTION: When an engine is operated in a first operation region in which a load is not smaller than a prescribed value, water is injected from a water injection valve 57 at timing at which the water is unevenly distributed to an external peripheral part of a combustion chamber 10 before fuel is self-ignited after a finish of fuel injection by a fuel injection valve 11. When the engine is operated in a second region in which the load is smaller than that in the first operation region, fuel is injected in a latter half of a compression stroke, and the fuel injection valve 11 and the water injection valve 57 are controlled so that the water is injected within a period in which combustion by self-ignition is finished after the fuel injection is finished.SELECTED DRAWING: Figure 2
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Inventors:
HARADA YUJI
AOKI OSAMU
FUJIMAKI SHINICHI
KOGA YOSHIYUKI
AOKI OSAMU
FUJIMAKI SHINICHI
KOGA YOSHIYUKI
Application Number:
JP2017070350A
Publication Date:
November 08, 2018
Filing Date:
March 31, 2017
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F02D19/12; F02B23/10; F02D41/02; F02D41/04
Domestic Patent References:
| JP2017025775A | 2017-02-02 | |||
| JP2009168039A | 2009-07-30 | |||
| JP2016098738A | 2016-05-30 | |||
| JP2009209809A | 2009-09-17 | |||
| JP2008175078A | 2008-07-31 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato
Masataka Otani
Ko Sato