Cylinder structure for internal combustion engine

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United States of America Patent

PATENT NO 9080531
APP PUB NO 20140014058A1
SERIAL NO

14003330

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Abstract

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A cylinder structure satisfies the following conditions: 12%≦d/a≦27%, where d is a distance between a cylinder inner surface 12a and an exhaust valve member 20b, and a is a diameter of the exhaust valve member; 40%≦c/b≦50%, where c is a length of a non-guided portion of the exhaust valve 20 located below a lower end of a sleeve 26 when the exhaust valve 20 is closed, and b is a diameter of a cylinder bore; and 0.5%≦e/S≦0.8%, where e is a gap between an exhaust valve rod 20a and the sleeve 26 and S is a diameter of the exhaust valve rod 20a.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 100-8332

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furukawa, Yuta Tokyo, JP 18 68
Maehata, Kimihiko Tokyo, JP 4 15
Okumura, Hideaki Tokyo, JP 7 114

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