Title:
Internal-combustion engine
Document Type and Number:
Japanese Patent JP6206285
Kind Code:
B2
Abstract:
An internal combustion engine includes an ignition plug and an electronic control unit. The electronic control unit is configured to: (i) execute a lean-burn operation in a first operation region, (ii) execute an operation in a second operation region at an air-fuel ratio lower than an air-fuel ratio during the lean-burn operation, and (iii) control a gas flow in a cylinder so that a ratio of a change in a gas flow speed around the ignition plug during ignition to a change in an engine rotation speed in a first engine rotation speed region within the first operation region is smaller than the ratio in a second engine rotation speed region within the second operation region.
Inventors:
Mori Yukio
Kimura Koshiro
Satoshi Tsuda
Kimura Koshiro
Satoshi Tsuda
Application Number:
JP2014062292A
Publication Date:
October 04, 2017
Filing Date:
March 25, 2014
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02B31/00; F02B23/10; F02D43/00; F02D45/00; F02P3/045
Domestic Patent References:
| JP5196030B2 | ||||
| JP2002242729A | ||||
| JP2001159367A | ||||
| JP2008303798A | ||||
| JP2000204954A | ||||
| JP2002349335A |
Foreign References:
| DE102009026574A1 | ||||
| DE102011013481A1 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi
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