Title:
COMBUSTION CONTROL DEVICE FOR MULTIPOINT IGNITION TYPE ENGINE
Document Type and Number:
Japanese Patent JP3142630
Kind Code:
B2
Abstract:
PURPOSE: To provide an engine combustion control device which can reduce the production quantity of NOx and enhance the fuel consumption performance.
CONSTITUTION: In a high combustion stability zone in a lean burn area, air is fed from a first intake port 4 so as to create a swirl in a combustion chamber 6, and fuel is injection toward the center part of the combustion chamber 6 from a first fuel injection valve 17 so as to form a rich mixture. Further, the mixture is ignited by a center part spark plug 8, and accordingly, the ignitability is enhanced while the fuel consumption performance is enhanced, resulting in reduction of the generation quantity of NOx. Meanwhile, in a zone where the combustion stability is slightly low, air is fed from two intake ports 4, 5 so as to create inclined swirls, and fuel is fed from a second fuel injection valve 18 so as to form a rich mixture at the peripheral edge of the combustion chamber. Further, the mixture is ignited by peripheral spark plugs 9 to 11 so as to enhance the ignitability, thereby it is possible to reduce the production quantity of NOx.
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Inventors:
Tomomi Watanabe
triangle positive
Kazuhiko Hashimoto
triangle positive
Kazuhiko Hashimoto
Application Number:
JP10764792A
Publication Date:
March 07, 2001
Filing Date:
April 27, 1992
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B23/08; F02B31/02; F02D41/04; F02M69/00; F02P15/02; F02P15/08; (IPC1-7): F02B23/08; F02B31/02; F02D41/04; F02M69/00; F02P15/08
Domestic Patent References:
| JP323314A | ||||
| JP3100369A | ||||
| JP4183925A | ||||
| JP559953A | ||||
| JP3185266A | ||||
| JP4171218A | ||||
| JP5180137A | ||||
| JP5862129U | ||||
| JP349371U |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)