SPARK-IGNITION INTERNAL COMBUSTION ENGINE

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200018225A1
SERIAL NO

16494656

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Abstract

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In a spark-ignition internal combustion engine in which a protrusion including an intake-side inclined surface and an exhaust-side inclined surface is formed on a top surface of a piston, and a cavity is formed in the protrusion at a position associated with a spark plug, the intake-side inclined surface and the exhaust-side inclined surface are formed in such a way that an angle defined by an orthogonal plane orthogonal to a center axis of a cylinder and the exhaust-side inclined surface) is smaller than an angle defined by the orthogonal plane and a valve head bottom surface of an exhaust valve, and an inclination angle difference between the exhaust-side inclined surface and the valve head bottom surface of the exhaust valve is larger than an inclination angle difference between the intake-side inclined surface and a valve head bottom surface of an intake valve by 3 degrees or larger.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Shuma Yokohama-shi, JP 4 3
Muranaka, Hiroaki Higashihiroshima-shi, JP 8 30
Wada, Yoshitaka Higashihiroshima-shi, JP 11 11
Yamaguchi, Naohiro Hiroshima-shi, JP 25 96

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