Title:
過給システム付き予混合圧縮着火式エンジン
Document Type and Number:
Japanese Patent JP6555310
Kind Code:
B2
Abstract:
To actualize combustion involving compression ignition while reducing combustion noise down to a permissible value or smaller.SOLUTION: The geometric compression ratio of an engine body (2) is set to be 13 or higher so that, when the engine body is operated in a preset high load region, the effective compression ratio of the engine body is 12 or higher and a difference between the geometric compression ratio and itself is within a range of 2. Gas introduced into a combustion chamber (17) is supercharged by a supercharging system (49), the fuel is injected at least in the second half of a compression stroke by an injector (6), and air-fuel mixture in the combustion chamber is ignited by a spark plug (25) after finishing the fuel injection but before the compression top dead center. As a result, the combustion of air-fuel mixture is caused in the engine body by flame propagation and then the combustion of unburnt air-fuel mixture is caused by compression ignition.SELECTED DRAWING: Figure 8
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Inventors:
Atsushi Inoue
Kenya Sueoka
Yusuke Kawai
Tetsuya Chikada
Kenya Sueoka
Yusuke Kawai
Tetsuya Chikada
Application Number:
JP2017162860A
Publication Date:
August 07, 2019
Filing Date:
August 25, 2017
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/02; F02B11/00; F02B23/02; F02B23/10; F02D13/02; F02D21/08; F02D23/00; F02D43/00; F02M26/22; F02P5/04
Domestic Patent References:
| JP2012241590A | ||||
| JP2010236477A | ||||
| JP2007292065A |
Attorney, Agent or Firm:
Maeda patent office