Title:
HEAT-SHIELDING RING FOR CYLINDER LINER, AND INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2022/044986
Kind Code:
A1
Abstract:
Provided are a heat-shielding ring for a cylinder liner that is less likely to be damaged due to a groove for forming an insulation air layer, and an internal combustion engine that uses said heat-shielding ring. The present invention is a heat-shielding ring 10 for a cylinder liner and an internal combustion engine 200 that uses the heat-shielding ring 10. In the heat-shielding ring 10 for a cylinder liner, the cross-sectional shape of a groove 34 provided in an outer peripheral surface 30 of a ring-form member 20 constituting the heat-shielding ring 10 is any one or more shapes selected from the group comprising (1) a first cross-sectional shape in the form of a letter V, (2) a second cross-sectional shape in which the vicinities of the corners of the first cross-sectional shape are rounded into a curve, (3) a third cross-sectional shape formed from only an arcuate curve, and (4) a fourth cross-sectional shape in the form of a letter U.
Inventors:
HATAKEYAMA KOICHI (JP)
OKUYAMA KOJI (JP)
KUROMASA YUKI (JP)
OKUYAMA KOJI (JP)
KUROMASA YUKI (JP)
Application Number:
PCT/JP2021/030523
Publication Date:
March 03, 2022
Filing Date:
August 20, 2021
Export Citation:
Assignee:
TPR CO LTD (JP)
TPR IND CO LTD (JP)
TPR IND CO LTD (JP)
International Classes:
F02F1/10; F02F1/18; F16J10/04
Foreign References:
| EP3670882A1 | 2020-06-24 | |||
| US20160097340A1 | 2016-04-07 | |||
| JPH01257745A | 1989-10-13 | |||
| JPS6298744U | 1987-06-23 |
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (JP)
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