Rocker arm assembly and method of forming retention elements in a rocker arm

    公开(公告)号:US10316702B2

    公开(公告)日:2019-06-11

    申请号:US15259655

    申请日:2016-09-08

    Abstract: An assembly for a valvetrain having a valve, a lash adjuster, and a lobe. The assembly includes a shaft, a bearing supported by the shaft for engaging the lobe, and a rocker having a pad for the valve and a socket for the lash adjuster. Walls are disposed between the pad and socket, have inner and outer wall surfaces, and define a valley for the shaft. Upwardly-opening arc-shaped bearing surfaces are disposed longitudinally between the pad and socket spaced laterally from each other and support the shaft when the bearing engages the lobe. A retention element formed in each wall with a depressed portion spaced from the outer wall surface and a lip portion arranged under the depressed portion extends into the valley above the bearing surfaces such that the shaft is prevented from moving out of the valley in absence of engagement between the bearing and the lobe.

    Tappet assembly for use in an internal combustion engine high-pressure fuel system

    公开(公告)号:US10060400B2

    公开(公告)日:2018-08-28

    申请号:US15923113

    申请日:2018-03-16

    Abstract: A tappet assembly for use in translating force between a camshaft lobe and a fuel pump assembly via reciprocal movement within a tappet cylinder having a guide slot. The tappet assembly includes a bearing assembly having a shaft and a bearing rotatably supported by the shaft for engaging the lobe. An intermediate element has a shelf for engaging the fuel pump assembly, and a pair of arc-shaped bearing surfaces rotatably engaging the shaft when the bearing engages the lobe and the shelf engages the fuel pump assembly. The intermediate element includes a pair of lock apertures. The bearing assembly further includes a pair of shields supported on the shaft of the bearing assembly with the bearing interposed between the shields. The shields include a pair of opposing fingers for engaging the lock apertures so as to substantially retain the bearing assembly to the intermediate element and so as to substantially retain the shaft of the bearing assembly within the annular body in absence of engagement between the bearing and the camshaft lobe.

    TAPPET ASSEMBLY FOR USE IN AN INTERNAL COMBUSTION ENGINE HIGH-PRESSURE FUEL SYSTEM
    13.
    发明申请
    TAPPET ASSEMBLY FOR USE IN AN INTERNAL COMBUSTION ENGINE HIGH-PRESSURE FUEL SYSTEM 有权
    用于内燃机高压燃油系统的TAPPET组件

    公开(公告)号:US20170016418A1

    公开(公告)日:2017-01-19

    申请号:US15200092

    申请日:2016-07-01

    Abstract: A tappet assembly for use in translating force between a camshaft lobe and a fuel pump assembly via reciprocal movement within a tappet cylinder having a guide slot. The tappet assembly includes a bearing assembly having a shaft and a bearing rotatably supported by the shaft for engaging the lobe. An intermediate element has a first aperture, a shelf for engaging the fuel pump assembly, and a pair of arc-shaped bearing surfaces rotatably engaging the shaft when the bearing engages the lobe and the shelf engages the fuel pump assembly. An annular body has a second aperture and at least one stop member abutting the intermediate element to align the first aperture with the second aperture. An anti-rotation clip is disposed so as to extend through the apertures and cooperates with the stop member to substantially prevent rotational and axial movement of the intermediate element with respect to the body.

    Abstract translation: 一种挺杆组件,其用于在具有引导槽的挺杆气缸内通过往复运动在凸轮轴叶片和燃料泵组件之间平移力。 挺杆组件包括具有轴的轴承组件和由轴可旋转地支撑以用于接合凸角的轴承。 中间元件具有第一开口,用于接合燃料泵组件的搁板以及当轴承接合凸角时可旋转地接合轴的一对弧形轴承表面,并且货架接合燃料泵组件。 环形体具有第二孔和邻接中间元件的至少一个止挡构件,以将第一孔与第二孔对准。 防旋转夹具被设置成延伸穿过孔并且与止动构件协作以基本上防止中间元件相对于主体的旋转和轴向移动。

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