Title:
予混合圧縮着火式エンジン
Document Type and Number:
Japanese Patent JP6642558
Kind Code:
B2
Abstract:
To provide a premixing compression ignition type engine performing ignition assist, capable of preventing uneven distribution of flame propagation in a combustion chamber, and suppressing combustion noise and abnormal combustion.SOLUTION: A premixing compression ignition-type engine includes: a combustion chamber 6 generating a tumble flow Tu by intake air from an intake port 9 and compressing igniting and burning an air-fuel mixture; an injector 14 for injecting a fuel toward a central region in a radial direction B of the combustion chamber 6; an ignition plug 13 including an ignition portion 13A; and an ignition control portion for controlling an ignition timing. The ignition portion 13A is disposed at a position eccentric to an intake side where an intake port 9 is disposed in the combustion chamber 6, and in a confluent region M where the tumble flow Tu flowing along a cavity 5C and a squish flow Sq jetted from a squish formation face 51 are joined. The ignition control portion controls the ignition plug 13 so that the air-fuel mixture is forcibly ignited at a timing before a compression top dead center.SELECTED DRAWING: Figure 7
Inventors:
Nobuyuki Ota
Ryohei Ohno
Nou Yoshinao
Ryohei Ohno
Nou Yoshinao
Application Number:
JP2017237619A
Publication Date:
February 05, 2020
Filing Date:
December 12, 2017
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B23/10; F02B23/00; F02B23/06; F02F3/26
Domestic Patent References:
| JP2004245171A | ||||
| JP10131758A | ||||
| JP2001349219A | ||||
| JP2001263067A |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Haruhiro Hirata
Masataka Otani
Haruhiro Hirata