Valve lifter for internal combustion engines
    1.
    发明授权
    Valve lifter for internal combustion engines 失效
    内燃机用气门挺杆

    公开(公告)号:US5749341A

    公开(公告)日:1998-05-12

    申请号:US839176

    申请日:1997-04-23

    CPC分类号: F01L1/205 F01L1/143 F01M9/104

    摘要: A mechanical valve lifter for an internal combustion engine comprises a head section having a recessed portion on an upper face thereof, a skirt section formed integral with the head section and adapted to be in sliding-contact with a lifter guiding bore in an engine cylinder head, a mechanical valve-clearance adjusting shim put in the recessed portion, an annular groove formed in an upper face of a bottom wall of the recessed portion of the lifter body, a first through-opening formed in the shim to communicate with the annular groove, and a second through-opening formed in the head section to communicate with the annular groove and to penetrate the head section. The annular groove and the second through-opening are formed in an essentially zero bending moment area midway between a central axis of the head section and a peripheral wall of the recessed portion.

    摘要翻译: 一种用于内燃机的机械式气门挺杆,包括:头部,其在其上表面上具有凹部;裙部,其与头部形成一体,并且适于与发动机气缸盖中的升降器引导孔滑动接触 设置在所述凹部中的机械阀间隙调节垫片,形成在所述升降机体的凹部的底壁的上表面中的环状槽,形成在所述垫片中的与所述环状槽连通的第一贯通开口 以及形成在头部中的与环形槽连通并穿透头部的第二通孔。 环形槽和第二通孔形成在头部的中心轴线与凹部的周壁之间的中间的基本零弯曲力矩区域中。

    Electromagnetically-powered valve operating apparatus of automotive internal combustion engine
    4.
    发明授权

    公开(公告)号:US06427648B2

    公开(公告)日:2002-08-06

    申请号:US09339943

    申请日:1999-06-25

    申请人: Kenji Ariga

    发明人: Kenji Ariga

    IPC分类号: F01L904

    CPC分类号: F01L9/04

    摘要: An electromagnetically-powered valve operating apparatus has a relatively-small-sized intake valve operating unit as compared to the exhaust valve operating unit. The height of each of the upper and lower coil springs included in the intake valve operating unit is reduced by lowering a spring bias of each of the upper and lower coil springs as compared with the corresponding springs in the exhaust valve operating unit. A coil outside diameter and a coil height of each of the upper and lower electromagnetic coils in the intake-valve operating unit are both reduced by reducing the number of turns of each of the upper and lower coils along with the magnitude of the electromagnetic force created by each of the coils as compared with the corresponding coils of the exhaust valve operating unit.

    摘要翻译: 与排气门操作单元相比,电磁阀操作装置具有相对较小尺寸的进气门操作单元。 与排气门操作单元中的相应弹簧相比,通过降低上,下螺旋弹簧中的每一个的弹簧偏压来减小包括在进气门操作单元中的每个上,下螺旋弹簧的高度。 进气门操作单元中的上下电磁线圈的线圈外径和线圈高度都通过减少上,下线圈中的每一个的匝数与所产生的电磁力的大小而减小 与排气门操作单元的相应线圈相比较。