Title:
予混合圧縮着火式エンジン
Document Type and Number:
Japanese Patent JP6544419
Kind Code:
B2
Abstract:
To attain combustion of a latter-term focus type heat generation pattern in a premixing compression ignition type engine, thereby reducing combustion noise and suppressing abnormal combustion.SOLUTION: A premixing compression ignition type engine comprises: a combustion chamber 6 sectioned by a cylinder 2 and a piston 5, and capable of combusting air-fuel mixture of fuel and air by self-ignition; an injector 14 injecting fuel into the combustion chamber 6; a water injection device 17 injecting water into the combustion chamber 6; and a water injection control unit 102 controlling operation of the water injection device 17. The water injection control unit 102, after fuel injection of the injector 14, injects water into a center side first region R1 excluding an outer peripheral part RE in a radial direction B of the combustion chamber 6, of the combustion chamber 6 at timing in a period from before start of low-temperature oxidation reaction of the air-fuel mixture and before start of high-temperature reaction.SELECTED DRAWING: Figure 7
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Inventors:
Nobuyuki Ota
Yuri Seto
Nou Yoshinao
Keiji Araki
Yuri Seto
Nou Yoshinao
Keiji Araki
Application Number:
JP2017238503A
Publication Date:
July 17, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D19/12; F02B23/10; F02B47/02; F02D41/02; F02D45/00; F02M25/03
Domestic Patent References:
| JP200838859A | ||||
| JP2005282542A | ||||
| JP201789555A | ||||
| JP201725775A |
Foreign References:
| WO2012004850A1 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Haruhiro Hirata
Masataka Otani
Haruhiro Hirata