Title:
Internal-combustion engine
Document Type and Number:
Japanese Patent JP6040641
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve fuel consumption by accelerating combustion of air fuel mixture.SOLUTION: A top surface 18A of a piston 18 includes a recess 29 and an intake-side squish 30. The recess 29 is opened upward at the center of the top surface 18A so as to surround an ignition point P1 of a spark plug PL in a state where the piston 18 is positioned near top dead center. A bottom surface of the recess 29 is formed higher than the intake-side squish 30. An intake-side edge 38A of the recess 29 is formed lower than an exhaust-side edge 38B. During compression stroke, a capacity is reduced between the intake-side squish 30 and a lower surface 16A of a cylinder head 16 facing the intake-side squish 30 to produce a squish flow S that makes air fuel mixture therebetween flow in toward the recess 29. In addition, the intake-side squish is formed of a plane orthogonal to a center axis Op of the piston 18.
Inventors:
Doi Teruyuki
Kunio Hatada
Masayuki Takeda
Kunio Hatada
Masayuki Takeda
Application Number:
JP2012192250A
Publication Date:
December 07, 2016
Filing Date:
August 31, 2012
Export Citation:
Assignee:
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
Mitsubishi Automotive Engineering Co., Ltd.
Mitsubishi Automotive Engineering Co., Ltd.
International Classes:
F02B23/08; F02F3/26
Domestic Patent References:
| JP10008968A | ||||
| JP2011214577A | ||||
| JP2011074836A | ||||
| JP2005048655A | ||||
| JP4112904A | ||||
| JP2006183512A |
Foreign References:
| US6725828 |
Attorney, Agent or Firm:
Shigeru Noda
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