Lever-type cam follower made of sheet metal
    1.
    发明授权
    Lever-type cam follower made of sheet metal 有权
    杠杆式凸轮从动件由金属板制成

    公开(公告)号:US06729285B2

    公开(公告)日:2004-05-04

    申请号:US10419668

    申请日:2003-04-21

    IPC分类号: F01L118

    摘要: What is proposed is a lever-type cam follower (1) made of sheet metal, typically for a valve train of an internal combustion engine, said cam follower (1) comprising two parallel side walls (3a, 3b) connected by a crossbeam (2), an underside (4) of the crossbeam (2) having a support (6) for at least one gas exchange valve on one end (5), said support (6) being limited by guide walls (7a, 7b) extending parallel to the side walls (3a, 3b), wherein the one end (5) of the cam follower (1) is narrower than the rest of the length of the cam follower (1), and at least in the region of said one end (5), the side walls (3a, 3b) have a smaller mean wall thickness (DSM) than over the rest of said length, which wall thickness (DSM) increases at least in said region continuously from ends (8a, 8b) of the side walls (3a, 3b) in the direction of the crossbeam (2), and the thickness (DF) of the guide walls (7a 7b) is smaller than the mean wall thickness (DSM) in the region of the narrow one end (5). Such a cam follower (1) requires only a small design space in the region of the one end (5) and has a particularly favorable mass moment of inertia.

    摘要翻译: 提出的是一种由金属板制成的杠杆式凸轮从动件(1),通常用于内燃机的气门机构,所述凸轮从动件(1)包括通过横梁连接的两个平行的侧壁(3a,3b) 横梁(2)的下侧(4)具有在一端(5)上用于至少一个气体交换阀的支撑件(6),所述支撑件(6)由延伸的导向壁(7a,7b)限制 平行于侧壁(3a,3b),其中凸轮从动件(1)的一端(5)比凸轮从动件(1)的长度的其余部分窄,并且至少在所述一个 端部(5),侧壁(3a,3b)的平均壁厚(DSM)比所述长度的其余部分小,该壁厚(DSM)至少在所述区域中从端部(8a,8b)连续地增加, 的横壁(2)的方向上的侧壁(3a,3b)的厚度(DF)小于导向壁(7a)的厚度(DF) 结束(5)。 这种凸轮从动件(1)在一端(5)的区域中仅需要小的设计空间,并且具有特别有利的质量惯性矩。

    Mechanical valve tappet
    2.
    发明授权
    Mechanical valve tappet 失效
    机械阀挺杆

    公开(公告)号:US5904123A

    公开(公告)日:1999-05-18

    申请号:US75054

    申请日:1998-05-08

    IPC分类号: F01L1/14 F01L1/20 B23P15/00

    摘要: A mechanical valve tappet for timing the valves of an internal combustion engine comprising a cup-shaped housing (1), consisting of a hollow cylindrical wall (2) closed at one end by a bottom (3) which is exteriorly contacted by a control cam (6), while on the inner surface of the bottom (3), there is arranged an elevation (4) which cooperates with the end of a valve stem of a gas exchange valve (5) and while the other dimensions of the valve tappet remain unchanged, the elevation is made in each case with a different axial extent whereby the valve clearance can be adjusted without the adjusting elements hitherto required by the prior art by inserting the entire cup-shaped housing (1) having the appropriate elevation (4) into the cylinder head.

    摘要翻译: 一种用于对包括杯状壳体(1)进行定时的内燃机的阀的机械阀挺杆,该杯形壳体由在一端由底部(3)封闭的中空圆柱形壁(2)组成,该底部由控制凸轮 (6),而在底部(3)的内表面上,设有与气体交换阀(5)的阀杆的端部配合的高度(4),而阀挺杆的另一个尺寸 保持不变,在每种情况下以不同的轴向范围进行升降,由此通过插入具有适当高度(4)的整个杯形壳体(1),可以调节阀间隙,而不需要现有技术所要求的调节元件, 进入气缸盖。

    Cup-shaped tappet
    4.
    发明授权
    Cup-shaped tappet 失效
    杯形挺杆

    公开(公告)号:US5954020A

    公开(公告)日:1999-09-21

    申请号:US765034

    申请日:1997-06-09

    IPC分类号: F01L1/14 F01L1/24 F01L1/25

    CPC分类号: F01L1/143 F01L1/25

    摘要: A cup-shaped tappet (1) for actuating a gas exchange valve (17) of an internal combustion engine, comprising a cylindrical jacket (6) closed at one end by a bottom (7) and guided in a bore (2) of a cylinder head (3), the valve tappet (1) being actuated by a cam (4) of a camshaft (5) acting on the bottom (7) of the tappet (1) characterized in that the bottom (7) and the jacket (6) are steel components having respective wall thicknesses (A),(B) dimensioned so that a product (P.sub.1) of the wall thicknesses, (A).times.(B) expressed in millimeters is

    摘要翻译: PCT No.PCT / EP94 / 02680第 371日期:1997年6月9日 102(e)日期1997年6月9日PCT 1994年8月11日PCT公布。 出版物WO95 / 06192 日期1995年3月2日一种用于致动内燃机的气体交换阀(17)的杯状挺杆(1),包括一个圆柱形护套(6),其在一端由底部(7)封闭并在孔 (3)的气缸挺杆(2),所述气门挺杆(1)由作用在挺杆(1)的底部(7)上的凸轮轴(5)的凸轮(4)致动,其特征在于底部 7)和护套(6)是具有各自的壁厚(A),(B)的钢构件的尺寸,使得以毫米表示的壁厚(A)x(B)的乘积(P1)小于2.3, 底部(7)的壁厚(A)为1.7〜2.4mm,护套(6)的壁厚(B)为0.7〜1.0mm。

    Tappet for a valve drive of an internal combustion engine
    5.
    发明授权
    Tappet for a valve drive of an internal combustion engine 失效
    用于内燃机的阀驱动的挺杆

    公开(公告)号:US5664530A

    公开(公告)日:1997-09-09

    申请号:US696174

    申请日:1996-08-13

    摘要: A tappet (1) for a valve drive of an internal combustion engine, which tappet (1) is guided for axial displacement in a reception bore of a cylinder head by a skirt (3) and is closed by a bottom (4) at a cam-proximate end, the skirt (3) comprising a first bush-like section (6) and a second bush-like section (7) of approximately equal diameter separated from each other preferably in a region of a central transverse plane, the first section (6) being connected to the bottom (4), while the second section (7) proceeds longitudinally from the first section (6), characterized in that the hardened first bush-like section (6) is connected to the unhardened second bush-like section (7) by interlocking and a method and apparatus for its preparation.

    摘要翻译: 一种用于内燃机的阀驱动器的挺杆(1),所述挺杆(1)通过裙部(3)被引导以在气缸盖的接收孔中轴向位移,并且在底座(4)处封闭 所述裙部(3)包括第一衬套状部分(6)和第二衬套状部分(7),所述第一衬套状部分(6)和第二衬套状部分(7)优选地在中心横向平面的区域中彼此分开, (6)连接到底部(4),而第二部分(7)从第一部分(6)纵向延伸,其特征在于,硬化的第一衬套状部分(6)连接到未硬化的第二衬套 (7)和其制备方法和装置。