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    • 1. 发明授权
    • Finger lever of a valve train of an internal combustion engine
    • 内燃机的气门机构的指杆
    • US06948466B2
    • 2005-09-27
    • US11043254
    • 2005-01-26
    • Michael HaasMartin RauchBodo RörigDieter SchmidtJens Artmann
    • Michael HaasMartin RauchBodo RörigDieter SchmidtJens Artmann
    • F01L1/18F01L13/00
    • F01L1/185F01L1/182F01L13/0015F01L2101/00F01L2103/00F01L2105/00F01L2820/031
    • The invention proposes a finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) being switchable to different valve lifts for at least one gas exchange valve and comprising an outer lever (2) having two arms (3a, 3b) between which an inner lever (4) is arranged for pivoting relative to the outer lever (2), which outer and inner levers (2, 4) can be coupled to each other by a coupling means (15), the outer lever (2) comprising on one closed end (5), a support (5a) for a gas exchange valve and the finger lever (1) comprising on an opposite end (6), a complementary surface (7, 30) for a support element, the inner lever (4) having a fulcrum (10) in a region of the opposite end (6), and at least this inner lever (4) comprising a contact surface (11) for a cam. In the finger lever (1) of the invention, the outer lever (2) has a substantially open fork-like configuration, the contact surface (11) for the cam on the inner lever (4) is configured as a rotatable roller (12) and the coupling means (15) comprises at least one slide (16, 19, 22) that extends crosswise to a longitudinal direction of the finger lever (1), an axial line of the at least one slide (16, 19, 22) coincides with an axial line of the roller (12), and the fulcrum (10) of the inner lever (4) is situated at least approximately at a same point on a length of the finger lever (1) as a fulcrum of the outer lever (2) in a region of the complementary surface (7) of the finger lever (1). The switchable finger lever (1) of the invention has only a small design space requirement and a coupling mechanism of a relatively simple structure.
    • 本发明提出了一种内燃机的气门机构的指杆(1),所述指杆(1)可切换至至少一个气体交换阀的不同气门升降机,并包括具有两个臂的外杆(2) 其中,内杠杆(4)布置成用于相对于外杆(2)枢转,该外杠杆和内杠杆(2,4)可以通过联接装置(15)彼此联接, ,所述外杆(2)包括在一个封闭端(5)上,用于气体交换阀的支撑件(5a)和所述手指杆(1)包括在相对端(6),互补表面(7,30) ),所述内杠杆(4)在相对端(6)的区域中具有支点(10),并且所述内杠杆(4)至少包括用于凸轮的接触表面(11)。 在本发明的手指杆(1)中,外杆(2)具有基本上敞开的叉形构造,用于内杠杆(4)上的凸轮的接触表面(11)被构造为可旋转辊 ),并且联接装置(15)包括至少一个与手指杆(1)的纵向方向横向延伸的滑动件(16,19,22),所述至少一个滑块(16,19,22)的轴线 )与滚子(12)的轴线重合,并且内杆(4)的支点(10)至少大致位于手指杆(1)的长度上的同一点上,作为支杆的支点 外杆(2)位于指杆(1)的互补表面(7)的区域中。 本发明的可切换指杆(1)仅具有较小的设计空间要求和相对简单结构的联接机构。