Spark-ignition internal combustion engine

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United States of America Patent

PATENT NO 10907533
SERIAL NO

16494199

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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 a ratio of a length of the exhaust-side inclined surface with respect to a length of the intake-side inclined surface is 1.25 or larger in a cross section passing through a center axis of the piston and orthogonal to an axis direction of a crankshaft.

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Patent Owner(s)

Patent OwnerAddress
MAZDA MOTOR CORPORATION3-1 SHINCHI FUCHU-CHO AKI-GUN HIROSHIMA 730-8670

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Shuma Yokohama, JP 5 8
Muranaka, Hiroaki Higashihiroshima, JP 10 54
Wada, Yoshitaka Higashihiroshima, JP 14 53
Yamaguchi, Naohiro Hiroshima, JP 34 175

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