Title:
エンジンの吸気装置
Document Type and Number:
Japanese Patent JP3562047
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To stratificate in a simple structure that does not have a mixture supply port and realize a good lean-burn driving. SOLUTION: A first inlet port 3 and a second inlet port 4 are interconnected to each other in a cylinder 1 where a spark plug 8 is installed in a nearly central part. In addition, an on-off valve 10 is installed in the second inlet port 4, and a fuel injection nozzle of an injector 16 is inserted into a gap between this on-off valve 10 and an inlet valve. At a lean driving area where a target air-fuel ratio is higher than a thoretical air-fuel ratio, the on-off valve 10 is almost fully opened, and an air-fuel mixture formed in the second inlet port 4 at the downstream side is fed to the vicinity of the spark plug 8, thereby aiming at the promotion of stratification.
Inventors:
Kazuaki Umezono
Toshihide Yamamoto
Toshihide Yamamoto
Application Number:
JP20335595A
Publication Date:
September 08, 2004
Filing Date:
August 09, 1995
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B17/00; F02B29/08; F02B31/02; F02D13/02; F02D41/04; F02M69/00; F02M69/04; F02D41/30; (IPC1-7): F02B31/02; F02B17/00; F02B29/08; F02D13/02; F02D41/04; F02M69/00; F02M69/04
Domestic Patent References:
| JP60212619A | ||||
| JP7103011A | ||||
| JP6108859A | ||||
| JP5039756A | ||||
| JP61186729U |
Attorney, Agent or Firm:
Etsushi Kotani
Tadashi Nagata
Takao Ito
Jiro Higuchi
Tadashi Nagata
Takao Ito
Jiro Higuchi