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    • 6. 发明专利
    • Member for valve drive system of internal combustion engine and method of using the same
    • 内燃机用阀驱动系统的构件及其使用方法
    • JP2013108156A
    • 2013-06-06
    • JP2011256251
    • 2011-11-24
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所Toyota Motor Corpトヨタ自動車株式会社
    • MORI HIROYUKITOKORO HIROJIOKUYAMA MASARUTOYAMA MAMORUOMORI SHUNEIJINNO TETSUSHIARAYOSHI TAKATOSHIFUWA YOSHIO
    • C23C14/06C10M171/00C10N10/02C10N10/04C10N10/12C10N20/00C10N30/06C10N40/25
    • PROBLEM TO BE SOLVED: To provide a member for a valve drive system for an internal combustion engine, such as a valve lifter and a shim, which provides low friction and exerts steady slidability.SOLUTION: The member for a valve drive system for the internal combustion engine consists of a cam follower having a slide contact surface that is in slide-contact with a cam surface of a cam to follow the cam under a wet process condition where a lubricating oil lies. The slide contact surface of the cam follower is coated by a DLC film (DLC-B film) that consists of 5-25 atom% of H, 4-25 atom% of B, and the remainder of C when assuming the whole as 100 atom%. The slide contact surface that consists of the DLC-B film has high toughness and excellent impact resistance, and causes no lack, etc., even if received an impact force of 150-250 MPa/deg from the cam surface. Moreover, the cam follower exerts an excellent low friction coefficient when used under the wet process condition where the lubricating oil not containing molybdenum dialkyl dithiocarbamate (MoDTC) lies.
    • 要解决的问题:提供一种用于诸如气门挺杆和垫片的内燃机的阀驱动系统的构件,其提供低摩擦并且施加稳定的滑动性。 解决方案:用于内燃机的阀驱动系统的构件由具有滑动接触表面的凸轮从动件组成,滑动接触表面与凸轮的凸轮表面滑动接触,以在湿法处理条件下跟随凸轮 一个润滑油就在于。 凸轮随动件的滑动接触表面由DLC膜(DLC-B膜)包覆,其由5-25原子%的H,4-25原子%的B组成,当剩下的C全部为100时 原子%。 由DLC-B膜构成的滑动接触面即使受到来自凸轮面的150-250MPa / deg的冲击力,也具有高韧性和优异的抗冲击性,不会有缺陷等。 此外,当在不含有二烷基二硫代氨基甲酸钼(MoDTC)的润滑油所在的湿法工艺条件下使用时,凸轮从动件具有优异的低摩擦系数。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Prediction support device, prediction support method, and program
    • 预测支持设备,预测支持方法和程序
    • JP2012194091A
    • 2012-10-11
    • JP2011058904
    • 2011-03-17
    • Toyota Central R&D Labs IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • KAJITA SEIJITOYAMA MAMORUMORI HIROYUKIWASHIZU HITOSHIOMORI SHUNEISUZUKI ATSUSHIJINNO TETSUSHIARAYOSHI TAKATOSHI
    • G01N3/56G01N19/02
    • PROBLEM TO BE SOLVED: To provide a prediction support device and the like, which calculate an index value for determining whether low friction characteristics are exhibited so as to support prediction of element-added DLC exhibiting low-friction characteristics.SOLUTION: A prediction support device 1 performs: inputting a specified DLC surface model, additive element, additive amount, and a molecule absorbed on a surface (step S1); performing an electronic state calculation, on the basis of a predetermined calculation condition, for a state in which the input additive element is introduced into a part of the input DLC surface model, to determine the initial structure of element-added DLC (step S2); and calculating an index value for determining whether low friction characteristics are exhibited on the basis of the determined initial structure of the element-added DLC (step S3), where the index value is, for example, a difference (a first index value) between energy in a final state and energy in an initial state.
    • 要解决的问题:提供一种预测支持装置等,其计算用于确定是否表现出低摩擦特性的指标值,以便支持显示低摩擦特性的元素添加DLC的预测。 解决方案:预测支持装置1执行:输入指定的DLC表面模型,添加元素,添加量和在表面上吸收的分子(步骤S1); 对于将输入的添加元素引入输入的DLC表面模型的一部分的状态,基于预定的计算条件进行电子状态计算,以确定元素添加的DLC的初始结构(步骤S2) ; 以及计算用于基于确定的添加元素DLC的初始结构来确定是否表现出低摩擦特性的指标值(步骤S3),其中指标值例如是 处于最终状态的能量和初始状态下的能量。 版权所有(C)2013,JPO&INPIT