Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods

    公开(公告)号:US10240495B2

    公开(公告)日:2019-03-26

    申请号:US15345136

    申请日:2016-11-07

    Abstract: A rocker arm for engaging a cam in a valve actuation arrangement includes a latch pin assembly having includes a latch pin, retainer, and biasing mechanism. The latch pin has a pin body with a head and a tail at the second end; the body defining an open volume; the tail having an open mouth in communication with the open volume of the body; and the open volume having a non-circular cross-section. The retainer has a male engagement portion and an outer portion. The male engagement portion is within the open volume of the body through the open mouth. The male engagement portion has a non-circular cross section. The outer portion is non-removably secured to an outer arm of the rocker arm. The biasing mechanism is oriented in the open volume of the body and between and against the latch pin and the retainer.

    CYLINDER HEAD ARRANGEMENT FOR VARIABLE VALVE ACTUATION ROCKER ARM ASSEMBLIES
    9.
    发明申请
    CYLINDER HEAD ARRANGEMENT FOR VARIABLE VALVE ACTUATION ROCKER ARM ASSEMBLIES 审中-公开
    液压缸头安装用于可变阀门启动摇臂ARM总成

    公开(公告)号:US20160138438A1

    公开(公告)日:2016-05-19

    申请号:US14876928

    申请日:2015-10-07

    Abstract: A novel cylinder head arrangement for an in-line four cylinder or eight cylinder engine. A modified arrangement allows additional space for installation of wider rocker arm assemblies used for variable valve lift (VVL), cylinder deactivation (CDA) and other types of variable valve actuation (VVA). In one embodiment, cam towers adjacent the end two cylinders are not used. At least one end support is used, which may be an outboard bearing on a camshaft for each end. The wider rocker assemblies may then be installed. In another embodiment, cam towers adjacent the inner two cylinders are eliminated and a single camshaft support piece with a support bearing is installed between the inner cylinders to provide support for the camshafts. The wider rocker assemblies may then be installed on at least one of the middle cylinders. A novel oil control valve operates latches in switching rocker arm assemblies.

    Abstract translation: 一种用于直列四缸或八缸发动机的新型气缸盖装置。 改进的布置允许用于安装用于可变气门升程(VVL),气缸停用(CDA)和其他类型的可变气门致动(VVA)的更宽的摇臂组件的额外空间。 在一个实施例中,不使用与端部两个气缸相邻的凸轮塔。 使用至少一个端部支撑件,其可以是用于每个端部的凸轮轴上的外侧轴承。 然后可以安装更宽的摇杆组件。 在另一个实施例中,消除了与内两个气缸相邻的凸轮塔,并且具有支撑轴承的单个凸轮轴支撑件安装在内部气缸之间,以提供对凸轮轴的支撑。 然后可以将更宽的摇杆组件安装在至少一个中间圆柱体上。 一种新型油控阀在开关摇臂组件中操作闩锁。

    ROCKER ARM ASSEMBLY AND COMPONENTS THEREFOR
    10.
    发明申请

    公开(公告)号:US20160130991A1

    公开(公告)日:2016-05-12

    申请号:US14970847

    申请日:2015-12-16

    Abstract: A method of precision manufacture of an outer arm of a rocker arm assembly is performed by determining structures of a rough outer arm that would require precision processing and locations to support the structures as they are processed. Starting with at least one structure requiring precision processing, locations on the outer arm close to the structure to hold the outer arm during processing are determined that would cause minimal distortion of the outer arm during processing. The outer arm is then provided with clamping lobes at these locations. The clamping lobes of the outer arm are clamping into a fixture for manufacturing. The slider pad may now be precision ground while the outer arm is clamped in the fixture with minimal risk of distortion of the outer arm.

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