Sliding structure for automotive engine
    5.
    发明授权
    Sliding structure for automotive engine 失效
    汽车发动机滑动结构

    公开(公告)号:US07255083B2

    公开(公告)日:2007-08-14

    申请号:US11118360

    申请日:2005-05-02

    IPC分类号: B26D5/00

    摘要: A sliding structure for an automotive engine includes a sliding member with a sliding portion and a lubricant applied to the sliding portion so that the sliding portion can make sliding contact with a counterpart member via the lubricant. The sliding member is either of a piston ring, a piston pin, a cam lobe, a cam journal, a plain bearing, a rotary vane and a timing chain. The sliding portion has a base made of a steel or aluminum material and a hard carbon film formed on the base to coat the sliding portion. The hard carbon film has a thickness of 0.3 to 2.0 μm, a Knoop hardness of 1500 to 4500 kg/mm2, a surface roughness Ry (μm) satisfying the following equation: Ry

    摘要翻译: 用于汽车发动机的滑动结构包括具有滑动部分的滑动构件和施加到滑动部分的润滑剂,使得滑动部分可以经由润滑剂与对方构件滑动接触。 滑动构件是活塞环,活塞销,凸轮凸角,凸轮轴颈,滑动轴承,旋转叶片和正时链中的任一个。 滑动部分具有由钢或铝材料制成的基底和形成在基底上以涂覆滑动部分的硬碳膜。 硬碳膜的厚度为0.3〜2.0μm,Knoop硬度为1500〜4500kg / mm 2,表面粗糙度Ry(mum)满足下式:Ry <{(0.75〜 Hk / 8000)xh + 0.07 / 0.8},其中h是膜的厚度(mum); 并且H k是膜的努氏硬度(kg / mm 2)。

    Fuel injection valve
    7.
    发明申请
    Fuel injection valve 有权
    燃油喷射阀

    公开(公告)号:US20050035222A1

    公开(公告)日:2005-02-17

    申请号:US10823773

    申请日:2004-04-14

    摘要: A fuel injection valve for an automotive internal combustion engine comprises a needle valve and an opposite member which are in slidable contact with each other in presence of fuel. A hard carbon thin film is coated on at least one of the sliding sections of the base materials of the needle valve and the opposite member. The hard carbon thin film has a surface hardness ranging from 1500 to 4500 kg/mm2 in Knoop hardness, a film thickness ranging from 0.3 to 2.0 μm, and a surface roughness (Ry) (μm) which satisfies a relationship represented by the following formula (A): Ry

    摘要翻译: 一种用于汽车内燃机的燃料喷射阀包括针阀和相对的构件,它们在存在燃料的情况下可相互滑动接触。 硬碳薄膜涂覆在针阀和相对构件的基材的至少一个滑动部分上。 硬碳薄膜的表面硬度为Knoop硬度为1500〜4500kg / mm 2,膜厚为0.3〜2.0μm,表面粗糙度(Ry)(mum)满足关系式 下式(A):Ry <(0.75-Hk / 8000)×h + 0.0875(A)其中,h是硬质碳薄膜的厚度(mum) Hk是硬碳薄膜的Knoop硬度(kg / mm 2)的表面硬度。