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    SLIDING SYSTEM
    1.
    发明申请
    SLIDING SYSTEM 审中-公开

    公开(公告)号：US20190177637A1

    公开(公告)日：2019-06-13

    申请号：US16186686

    申请日：2018-11-12

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroyuki MORI ,  Shigeru HOTTA ,  Mamoru TOHYAMA ,  Masaru OKUYAMA ,  Keiji HAYASHI ,  Kazuyoshi MANABE

    IPC: C10M137/10 ,  C23C14/06 ,  C10M169/04

    Abstract: [Technical Problem] An object is to provide a sliding system that allows the friction coefficient at a sliding part to be considerably reduced by means of a novel combination of a chromium nitride film and a lubricant oil.[Solution to Problem] The sliding system of the present invention comprises: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces comprises a coating surface of a specific chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound comprising molybdenum dialkyldithiophosphate (Mo-DTP). When the chromium nitride film as a whole is 100 at % (referred simply to as “%”), the chromium nitride film comprises 40-65% of Cr and 35-55% of N and has a relative surface area of 15-85%. The relative surface area is a surface area ratio of a (111) plane to a (200) plane obtained when analyzed with X-ray diffraction. The Mo-DTP is preferably contained at 150-800 ppm as a Mo mass content to the lubricant oil as a whole.

    SLIDING SYSTEM
    2.
    发明申请
    SLIDING SYSTEM 审中-公开

    公开(公告)号：US20170247625A1

    公开(公告)日：2017-08-31

    申请号：US15417452

    申请日：2017-01-27

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroyuki MORI ,  Mamoru TOHYAMA ,  Masaru OKUYAMA ,  Keiji HAYASHI ,  Naoya IKEDA

    IPC: C10M125/22 ,  C10M125/08

    CPC classification number: C10M125/22 ,  C10M125/08 ,  C10M135/18 ,  C10M2201/061 ,  C10M2201/066 ,  C10M2219/068 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2270/00 ,  C10N2280/00

    Abstract: [Technical Problem] An object is to provide a sliding system which can achieve both the reduced friction and the enhanced wear resistance by means of a novel combination of a sliding film and a lubricant oil.[Solution to Problem] The sliding system of the present invention comprises: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil interposed between the sliding surfaces facing each other. At least one of the sliding surfaces comprises a coating surface of a crystalline chromium carbide film. The lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo. When the chromium carbide film as a whole is 100 at %, the chromium carbide film contains 40-75 at % of Cr. The chromium carbide film in contact with the lubricant oil containing a Mo-trinuclear appears to react with the Mo-trinuclear adsorbed during the sliding to generate a layered structural body (boundary film) similar to MoS2 on the surface, thereby developing a considerably low friction property.

    SLIDING SYSTEM
    3.
    发明申请
    SLIDING SYSTEM 有权
    滑动系统

    公开(公告)号：US20160115414A1

    公开(公告)日：2016-04-28

    申请号：US14796081

    申请日：2015-07-10

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiroyuki MORI ,  Mamoru TOHYAMA ,  Masaru OKUYAMA ,  Keiji HAYASHI ,  Naoya IKEDA

    IPC: C10M103/04

    CPC classification number: C10M103/04 ,  C10M103/06 ,  C10M113/08 ,  C10M2201/066 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2230/42 ,  C10N2230/43 ,  C10N2240/10 ,  C10N2280/00

    Abstract: [Technical Problem]An object is to provide a sliding system which can drastically reduce the friction coefficient on a sliding portion by means of a novel combination of a chromium nitride film and a lubricant oil.[Solution to Problem]The sliding system according to the present invention includes: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces is formed as a coating surface of a chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo. When the chromium nitride film as a whole is 100 at % (referred simply to as “%”), the chromium nitride film contains 40-65% of Cr and 35-55% of N, and the chromium nitride film has a relative surface area of 15-60% wherein the relative surface area is a surface area ratio of (111) plane to (200) plane obtained when analyzed using X-ray diffraction. The lubricant oil preferably contains 5-800 ppm of the oil-soluble molybdenum compound in a content mass of Mo to the lubricant oil as a whole.

    Abstract translation: 技术问题本发明的目的是提供一种可以通过氮化铬膜和润滑油的新型组合，大幅降低滑动部分的摩擦系数的滑动系统。 具体实施方式本发明的滑动系统包括：一对滑动构件，其具有可相对移动并相对移动的滑动面; 以及可以插入在彼此面对的滑动表面之间的润滑油。 至少一个滑动面形成为氮化铬膜的涂层表面，润滑油含有具有Mo的三核化学结构的油溶性钼化合物。当氮化铬膜整体为 100原子％（简称为“％”），氮化铬膜含有40-65％的Cr和35-55％的N，氮化铬膜的相对表面积为15-60％，其中相对 表面积是使用X射线衍射分析时获得的（111）面与（200）面的表面积比。 润滑油优选含有5-800ppm的油溶性钼化合物，其总体上以润滑油的含量为Mo。

    SLIDING MACHINE
    5.
    发明申请
    SLIDING MACHINE 审中-公开
    滑动机

    公开(公告)号：US20160010021A1

    公开(公告)日：2016-01-14

    申请号：US14795388

    申请日：2015-07-09

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

    Inventor： Hiroyuki MORI ,  Mamoru TOHYAMA ,  Masaru OKUYAMA ,  Keiji HAYASHI ,  Naoya IKEDA

    IPC: C10M103/04

    CPC classification number: C10M125/22 ,  C10M2201/066 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2230/40 ,  C10N2230/42 ,  C10N2230/43 ,  C10N2280/00

    Abstract: A sliding machine includes: a pair of sliding members having sliding surfaces that oppose each other and are able to move relative to each other; and a lubricating oil which is able to be interposed between the opposed sliding surfaces, in which at least one of the sliding surfaces is covered with a chromium (Cr)-containing amorphous carbon film (chromium-coating DLC), and the lubricating oil contains an oil-soluble molybdenum compound having a chemical structure formed from a trinuclear material of molybdenum (Mo). Specifically, the chromium-coating DLC contains, when the entirety of the film is assumed to be 100 at. %, 1% to 49% of Cr, 0% to 30% of hydrogen (H), carbon (C) as a remainder, and impurities. The lubricating oil contains 5 ppm to 800 ppm of the oil-soluble molybdenum compound in terms of Mo mass ratio with respect to the entirety of the lubricating oil.

    Abstract translation: 一种滑动机器包括：一对滑动构件，其具有彼此相对并且能够相对于彼此移动的滑动表面; 以及润滑油，其能够插入在相对的滑动面之间，其中至少一个滑动面被含铬（Cr）的非晶碳膜（铬涂层DLC）覆盖，并且润滑油含有 具有由钼（Mo）的三核材料形成的化学结构的油溶性钼化合物。 具体地说，当假定膜的整体为100at时，铬涂层DLC含有。 ％，1〜49％的Cr，0〜30％的氢（H），碳（C）作为余量，杂质。 相对于整个润滑油，润滑油以Mo质量比计含有5ppm至800ppm的油溶性钼化合物。

    SLIDING SYSTEM
    6.
    发明申请
    SLIDING SYSTEM 审中-公开

    公开(公告)号：US20190100714A1

    公开(公告)日：2019-04-04

    申请号：US16149640

    申请日：2018-10-02

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shigeru HOTTA ,  Hiroyuki MORI ,  Mamoru TOHYAMA ,  Masaru OKUYAMA ,  Keiji HAYASHI ,  Kazuyoshi MANABE

    IPC: C10M169/04 ,  C10M103/06 ,  C10M135/18 ,  C10M137/10 ,  C10M135/10 ,  C10M149/10 ,  C10M141/10 ,  F01B3/00

    Abstract: A sliding system includes a pair of sliding members having opposing sliding surfaces adapted to move relative to each other, and a lubricating oil interposed between the opposing sliding surfaces. Here, at least one of the sliding surfaces is a covered surface covered with a specific chromium nitride film. The lubricating oil contains an oil-soluble molybdenum compound formed of a molybdenum dialkyldithiocarbamate. In the chromium nitride film, when an amount of atoms constituting the entire chromium nitride film is set as 100 atom %, there is 32 atom % to 47 atom % of N, the balance is Cr, and a relative area which is an area ratio of the (111) plane with respect to the (200) plane obtained when the chromium nitride film is analyzed by X-ray diffraction is 20% to 30%.

    SLIDING MEMBER AND SLIDING MACHINE
    7.
    发明申请
    SLIDING MEMBER AND SLIDING MACHINE 有权
    滑动构件和滑动机

    公开(公告)号：US20150267746A1

    公开(公告)日：2015-09-24

    申请号：US14644942

    申请日：2015-03-11

    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Masaru OKUYAMA ,  Mamoru TOHYAMA ,  Hiroyuki MORI ,  Munehisa MATSUI ,  Naoya IKEDA ,  Yoshio FUWA ,  Takatoshi SHINYOSHI

    IPC: F16C33/04

    CPC classification number: F16C33/043 ,  F16C2206/58

    Abstract: The sliding member according to the present invention includes: a base material; and a sliding film that covers a surface of the base material and constitutes a sliding surface, and is used under a wet condition where lubricant oil exists. The sliding film according to the present invention is a laminated film that includes: an underlying layer formed on the surface of the base material; and an outermost layer formed at least on a part of the underlying layer. This outermost layer is characterized by including specific boron-containing amorphous carbon (specific B-DLC) that contains 4-50% B and 5-50% H when the outermost layer as a whole is 100 at %. This specific B-DLC itself wears away during the sliding to smooth the sliding surface, and an excellent low friction property is exhibited. The underlying layer of the specific B-DLC contributes to improvement in the wear resistance property of the sliding film.

    Abstract translation: 根据本发明的滑动构件包括：基材; 以及覆盖基材的表面并构成滑动面的滑动膜，并且在存在润滑油的湿润状态下使用。 根据本发明的滑动膜是层压膜，其包括：形成在基材表面上的下层; 以及至少在所述下层的一部分上形成的最外层。 该最外层的特征在于，当最外层整体为100at％时，包含含有4-50％B和5-50％H的特定含硼无定形碳（特定B-DLC）。 这种特定的B-DLC本身在滑动期间磨损而滑动滑动表面，并且显示出优异的低摩擦性能。 特定B-DLC的下层有助于提高滑动膜的耐磨性。

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