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公开(公告)号：US10578200B2
公开(公告)日：2020-03-03
申请号：US15504394
申请日：2015-06-12
发明人： Takemichi Yamashita , Yutaka Mabuchi , Takeshi Kariya , Takao Mori , Tadashi Goto , Hiroyasu Nagami
摘要： A gear pair includes a first gear and a second gear that are engaged and paired with each other, wherein the arithmetic average roughness Ra of the tooth surface of the first gear is less than 0.10, and the arithmetic average roughness Ra of the tooth surface of the second gear is equal to or greater than 0.15. An improvement of the transmission efficiency is achieved due to the improved composite roughness of the gear pair. Accordingly, both of the improvement of the transmission efficiency of the gears and an improvement of the pitting fatigue life are achieved at low cost.
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公开(公告)号：US10451184B2
公开(公告)日：2019-10-22
申请号：US15672849
申请日：2017-08-09
摘要： A sliding member includes: a base; a chromium-based hard chromium plated layer formed on the surface of the base; a hard carbon layer that is mainly composed of carbon element and is formed on the hard chromium plated layer. The hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm.A method for producing the sliding member involves heating the surface of the base on which the chromium-based hard chromium plated layer has been formed at a temperature of 250° C. or more so that the hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm, and thereafter forming the hard carbon layer mainly composed of carbon element on the hard chromium plated layer.
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公开(公告)号：US20150072906A1
公开(公告)日：2015-03-12
申请号：US14389901
申请日：2013-03-29
发明人： Makoto Hayama , Terasu Yoshinari , Masanori Komaba , Yutaka Mabuchi , Yoshiteru Yasuda , Saburo Abe , Katsuyuki Serizawa , Tsuyoshi Higuchi
IPC分类号： C10M169/02
CPC分类号： C10M169/02 , C10M2203/1006 , C10M2205/0285 , C10M2207/0406 , C10M2207/1285 , C10M2207/2825 , C10M2209/1033 , C10N2220/022 , C10N2230/06 , C10N2240/02 , C10N2250/10 , C10N2280/00 , C10N2210/01
摘要： A sliding mechanism includes first and second members slidable relative to each other and a grease composition interposed between the first and second members and containing a thickening agent and a base oil, wherein the grease composition contains lithium 12-hydroxystearate as the thickening agent and dioctyl sebacate and/or poly-α-olefin as the base oil; and wherein at least one of the first and second member has a sliding surface coated with a hard carbon film of diamond-like carbon.
摘要翻译： 滑动机构包括相对于彼此可滑动的第一和第二构件以及介于第一和第二构件之间并含有增稠剂和基础油的润滑脂组合物，其中润滑脂组合物含有12-羟基硬脂酸锂作为增稠剂和癸二酸二辛酯 和/或聚-α-烯烃作为基础油; 并且其中所述第一和第二构件中的至少一个具有涂覆有类金刚石碳的硬质碳膜的滑动表面。
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公开(公告)号：US11926900B2
公开(公告)日：2024-03-12
申请号：US17337866
申请日：2021-06-03
IPC分类号： C23C24/04 , B22F1/00 , B22F1/12 , B22F7/04 , B22F9/08 , B32B15/20 , C22C1/04 , C22C9/06 , C22C9/10
CPC分类号： C23C24/04 , B22F1/09 , B22F1/12 , B22F7/04 , B22F9/08 , B32B15/20 , C22C1/04 , C22C9/06 , C22C9/10
摘要： A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape.
A sliding member includes the laminate in at least one sliding portion.
A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.-
公开(公告)号：US11433637B2
公开(公告)日：2022-09-06
申请号：US16638684
申请日：2017-08-14
发明人： Yuka Suzuki , Yutaka Mabuchi , Takuma Suzuki , Ken Tsutsuji
摘要： A heat shield component includes a substrate, and a heat shield film arranged on the substrate. The heat shield film includes a first layer arranged on the substrate, including pores, and having a thermal conductivity of 0.3 W/(m·K) or less and a volumetric specific heat of 1200 kJ/(m3·K) or less, and a second layer arranged on the first layer to provide closed pores between the first layer and the second layer. The heat shield film has a surface roughness on a top surface which is 1.5 μm Ra or less. The heat shield component can achieve high heat-insulating properties and an improved effect of reducing the emission amount of hydrocarbon in an internal combustion engine, for example.
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公开(公告)号：US11186795B2
公开(公告)日：2021-11-30
申请号：US16954714
申请日：2017-12-28
IPC分类号： C10M103/04 , F16C33/10 , C10N40/25
摘要： A sliding mechanism excellent in seizure resistance is provided. A sliding mechanism including a lubricating oil interposed at a sliding surface between a DLC coating sliding member (A) and a sliding member (B), wherein the DLC coating sliding member (A) has a DLC film covered on a base material, and metal films in an island configuration are covered on a surface of the DLC film.
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公开(公告)号：US11148195B2
公开(公告)日：2021-10-19
申请号：US16482628
申请日：2018-02-02
摘要： A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape.
A sliding member includes the laminate in at least one sliding portion.
A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.-
公开(公告)号：US09695378B2
公开(公告)日：2017-07-04
申请号：US14389901
申请日：2013-03-29
发明人： Makoto Hayama , Terasu Yoshinari , Masanori Komaba , Yutaka Mabuchi , Yoshiteru Yasuda , Saburo Abe , Katsuyuki Serizawa , Tsuyoshi Higuchi
IPC分类号： C10M171/02 , C10M169/04 , C10M117/02 , F16C31/04 , C10N40/02 , C10M169/02
CPC分类号： C10M169/02 , C10M2203/1006 , C10M2205/0285 , C10M2207/0406 , C10M2207/1285 , C10M2207/2825 , C10M2209/1033 , C10N2220/022 , C10N2230/06 , C10N2240/02 , C10N2250/10 , C10N2280/00 , C10N2210/01
摘要： A sliding mechanism includes first and second members slidable relative to each other and a grease composition interposed between the first and second members and containing a thickening agent and a base oil, wherein the grease composition contains lithium 12-hydroxystearate as the thickening agent and dioctyl sebacate and/or poly-α-olefin as the base oil; and wherein at least one of the first and second member has a sliding surface coated with a hard carbon film of diamond-like carbon.
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公开(公告)号：US09677611B2
公开(公告)日：2017-06-13
申请号：US13797346
申请日：2013-03-12
IPC分类号： C10M105/14 , F16C33/04 , C10M177/00 , C10M107/00
CPC分类号： F16C33/043 , C10M7/00 , C10M177/00 , C10M2201/022 , C10M2207/022 , C10M2207/0225 , C10M2207/06 , C10M2207/283 , C10M2207/289 , C10M2207/2895 , C10N2230/06 , C10N2240/10 , C10N2240/12 , C10N2250/00 , C10N2280/00 , G04D3/0087
摘要： A low friction assembly is desired. The present invention relates to a new low-friction lubrication assembly comprising a first member relatively slidable against a second member, the first member having chemical affinity with an OH-group on its sliding surface; and one or more oxygen containing compounds, provided on the sliding surface of the first member and being able to produce a tribofilm attached to the sliding surface of the first member through hydrogen bond interactions. Preferably the second member comprises a similar OH-terminated sliding surface wherein an oxygen containing compound (lubricant)-supported interface between the first and second sliding surfaces results in a H- and/or OH-terminated interface developing repulsive forces thereinbetween.
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公开(公告)号：US11231067B2
公开(公告)日：2022-01-25
申请号：US17052848
申请日：2018-05-10
摘要： A bearing member 1 is provided with a coating layer 3 on an inner circumferential surface of a shaft hole 1A into which a shaft body 2 is to be fitted. The coating layer 3 is composed of a metal base material 3A and a heat conductive material 3B that is dispersed in the base material 3A and that has a thermal conductivity relatively higher than that of the base material 3A. The heat conductive material 3B has lengths Lb and Lc in directions B and C along a surface of the coating layer 3, longer than a length La in a thickness direction A of the coating layer 3, whereby thermal conductive characteristics in the directions B and C along the inner circumferential surface of the shaft hole 1A are enhanced. Thus, heat dissipation is improved, whereby temperature rise due to sliding contact with the shaft body 2 is suppressed, and seizure resistance is improved.
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