Cylinder liner and cylinder bore

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11680537
APP PUB NO 20220372929A1
SERIAL NO

17770749

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention addresses the problem of providing a cylinder liner or a cylinder bore, which can reduce not only friction on a sliding surface but also oil consumption. In a piston sliding direction of the cylinder bore, grooves of a second sliding region positioned on the side of crankcase have a higher groove area ratio at a depth of 0.3 μm than grooves of a first sliding region positioned on the side of combustion chamber, and the groove area ratio is in a specific range, whereby friction and oil consumption can be reduced.

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Patent Owner(s)

  • TPR CO., LTD.; IPR INDUSTRY CO., LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohira, Masayuki Tokyo, JP 2 0
Oizumi, Takashi Yamagata, JP 5 9
Sato, Takashi Yamagata, JP 951 9282
Tamaki, Seiji Tokyo, JP 6 24
Umeda, Naoki Tokyo, JP 17 70

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