筒内噴射型エンジン

Japanese Patent JP3612875

B2

PROBLEM TO BE SOLVED: To ensure a fitting space for an injector sideways on the intake port side of a combustion chamber and position an intake port rationally without increasing intake resistance in an in-cylinder injection type engine provided with an injector which injects and supplies fuel to the combustion chamber for stratified combustion. SOLUTION: An intake valve and an exhaust valve are disposed so that the inclination angle θ1 of the valve axis of an intake valve 10 to a cylinder bore axis may be smaller than the inclination angle θ2 of the valve axis of an exhaust valve 11. A wall surface on intake port opening side and a wall surface on exhaust port opening side at the ceiling part of a combustion chamber 5 are formed so that they may be orthogonal to the respective valve axes. An injector 15 is disposed at the lower part of a cylinder head 1 which is at the combustion chamber side on the intake port opening side. Intake ports 6, 7 which extend upward from the combustion chamber 5 to the cylinder head 1 side at a section between the injector 15 and the inlet valve axis.

Akira Yinyama
Takehiko Yasuoka
Hiroyuki Yamamoto

JP21278596A

January 19, 2005

August 12, 1996

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Mazda Corporation Inc

F01L1/00; F01L1/04; F01L1/26; F01L3/06; F02B17/00; F02B23/08; F02B23/10; F02B31/00; F02B31/02; F02F1/24; F02F1/42; F02F3/26; F02B75/12; (IPC1-7): F02B17/00; F01L1/00; F01L1/04; F01L1/26; F01L3/06; F02B23/08; F02B23/10; F02B31/02; F02F1/24; F02F1/42

JP7293259A
JP3100316A
JP5106452A
JP4132807A
JP8158933A
JP5171937A
JP7097925A
JP5106451A
JP5214940A
JP7229424A
JP6066112A
JP5288021A
JP6074050A
JP9014103A
JP5321795A
JP6081651A

Etsushi Kotani
Kyuichi Ueki
Tadashi Nagata
Jiro Higuchi

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