利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.014 秒)

    VARIABLE VALVE APPARATUS FOR INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    VARIABLE VALVE APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的可变阀装置

    公开(公告)号：US20160273412A1

    公开(公告)日：2016-09-22

    申请号：US15074455

    申请日：2016-03-18

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Keiju TOMODA ,  Yoshiaki MIYAZATO

    IPC分类号： F01L1/08 ,  F01L1/18

    CPC分类号： F01L1/08 ,  F01L1/053 ,  F01L1/185 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2013/10 ,  F01L2105/00

    摘要： A variable valve apparatus for an internal combustion engine according to the present invention comprises a cam base member rotating with rotation of a camshaft and a cam lobe member. The cam lobe member is movable to the cam base member, between a projecting position where the cam part radially projects and a retreat position where the cam part is retreated. A resilient member urges the cam lobe member toward the projecting position. A movement control apparatus includes a drive member provided for driving the cam lobe member, and the drive member is fixed to the cam lobe member. When the cam lobe member is in a non-fixing state to the cam base member, the cam lobe member is moved from the projecting position to the retreat position with the drive member being pressed.

    摘要翻译： 根据本发明的用于内燃机的可变气门装置包括：随着凸轮轴和凸轮凸角构件的旋转而旋转的凸轮基座构件。 凸轮凸角构件可以在凸轮部分径向突出的突出位置和凸轮部分退回的退回位置之间移动到凸轮基座构件。 弹性构件朝向突出位置推动凸轮凸角构件。 移动控制装置包括驱动凸轮轴构件的驱动构件，驱动构件固定于凸轮凸角构件。 当凸轮凸角构件处于非固定状态时，凸轮轴构件随着驱动构件被按压而从突出位置移动到退避位置。

    Concentric camshaft for variable valve timing and method of manufacturing by metal additive process and disintegrable barrier to preserve interstitial void spaces and method of removal
    5.
    发明授权
    Concentric camshaft for variable valve timing and method of manufacturing by metal additive process and disintegrable barrier to preserve interstitial void spaces and method of removal 有权

    公开(公告)号：US12110813B1

    公开(公告)日：2024-10-08

    申请号：US18536301

    申请日：2023-12-12

    申请人： Anthony John Peila

    发明人： Anthony John Peila

    IPC分类号： F01L1/047 ,  F01L1/344 ,  F02D13/02 ,  F01L1/46 ,  F01L13/00

    CPC分类号： F01L1/047 ,  F01L1/34413 ,  F02D13/0219 ,  F01L2001/0473 ,  F01L1/46 ,  F01L2013/10 ,  F01L2301/00 ,  F01L2301/02 ,  F01L2303/00 ,  F01L2303/01 ,  F01L2810/02 ,  F02D13/0261

    摘要： This invention relates generally to a camshaft having dual independent banks of cam lobes which are azimuthally adjustable one with respect to the other over a small angle so as to allow separate control of intake and exhaust valve opening and closing events. Such a coaxial camshaft allows relative changes in the lobe centerline angle, or LCA, to vary the amount of valve overlap during operation. An outer shaft member containing one bank of cam lobes houses an inner shaft containing another bank of cam lobes which protrude and extend radially outward through windows of omitted material in the outer shaft. The concentric shafts containing banks of cam lobes are each a single piece being produced in their final shapes, simultaneously, by metal additive manufacturing, or MAM. The shafts being initially produced concentrically require no individual assembly operation, and are constrained by one another, inextricably bound in the assembled configuration upon their being formed. Furthermore, as exemplified in the invention, the requisite spacing between the inner and outer shafts of the coaxial camshaft may be preserved free of metal by the pre-placement of barrier material, or by placement of a non-metal interlayer during manufacture, as exemplified herein which may subsequently be disintegrated by industrial ultrasonic process to facilitate its removal. In either case, the small annular space having been formed maintains the radial alignment between the inner and outer shafts to within acceptable tolerance, and allows the flow of lubricating oil within the space during operation. Such a camshaft with the addition of a separate cam phasing mechanism may beneficially be fitted to engine blocks with a single traditional camshaft, which would otherwise be made from a single piece of material, with fixed LCA, thereby allowing older designs to be upgraded with fully universal Variable Valve Timing, or VVT.