Cylinder liner and manufacturing method for same

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United States of America Patent

PATENT NO 11499498
SERIAL NO

17296877

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Abstract

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A cylinder liner of the present invention is a cylinder liner mounted on a cylinder block and formed of flaky graphite cast iron, at least a nitrided layer is provided on an inner periphery of the cylinder liner, and a cross hatching section is formed on the inner periphery, a roughness curve of the inner periphery has a plateau honing shape, a ten-point average roughness Rz of the inner periphery pursuant to JIS B0601:1982 is 4.0 μm or less, and an average value of an area ratio of pits generated in the inner periphery is 8% or less.

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Patent Owner(s)

Patent OwnerAddress
TPR CO LTD6-2 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO
TPR INDUSTRY CO LTD1 CENTRAL INDUSTRIAL PARK SAGAE-SHI YAMAGATA 990-0561

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hatakeyama, Koichi Sagae, JP 39 364
Kuromasa, Yuki Sagae, JP 1 1
Ozawa, Takashi Tokyo, JP 170 2365

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