INTEGRATED CHECK-RELIEF VALVE
    1.
    发明申请

    公开(公告)号:US20180180191A1

    公开(公告)日:2018-06-28

    申请号:US15738619

    申请日:2016-06-20

    Inventor: Toru Shinoyama

    Abstract: Provided is an integrated check-relief valve in which a retreat amount of a valve seat member can be regulated when a relief valve is in operation. There is provided an integrated check-relief valve (1) including a tubular valve housing 2 ( ) of which both ends are open. Inside the valve housing (2), a check ball (3) and a valve disk (4) with which the check ball (3) can come into contact are provided so as to be movable in an axial direction, a check spring (5) which urges the check ball (3) to the valve disk (4) side and a relief spring (6) which urges the valve disk (4) to the check ball 3 ( ) side are provided. A step portion (20) which is a regulation portion regulating a movement amount of the valve disk (4) with respect to a side where the relief spring (6) contracts is provided on an inner circumferential surface 2b of the valve housing (2).

    INTEGRATED PRESSURE RELIEF VALVE FOR HYDRAULIC TENSIONER
    2.
    发明申请
    INTEGRATED PRESSURE RELIEF VALVE FOR HYDRAULIC TENSIONER 有权
    液压张紧器集成式压力释放阀

    公开(公告)号:US20160356365A1

    公开(公告)日:2016-12-08

    申请号:US15239045

    申请日:2016-08-17

    Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated disk check valve surrounding the pressure relief valve. A hydraulic tensioner includes a housing with a bore and a hollow piston slidably received within the bore. A piston spring biases the piston in a direction toward a power transmission device. The tensioner also includes an integrated check valve in a body of the housing. The integrated check valve includes a pressure relief valve mechanism and a disk check valve mechanism surrounding a circumference of the pressure relief valve mechanism. The pressure relief valve mechanism permits transfer of pressurized fluid from a piston chamber formed by the hollow piston to the source of pressurized fluid and the check valve mechanism permits transfer of pressurized fluid from the source of pressurized fluid to the piston chamber.

    Abstract translation: 用于液压张紧器的集成阀包括具有围绕减压阀的集成盘止回阀的减压阀。 液压张紧器包括具有孔的壳体和可滑动地容纳在孔内的中空活塞。 活塞弹簧朝向动力传递装置的方向偏压活塞。 张紧器还包括在壳体的整体中的集成的止回阀。 一体式止回阀包括压力释放阀机构和围绕减压阀机构的圆周的圆盘止回阀机构。 减压阀机构允许加压流体从由中空活塞形成的活塞室传递到加压流体源,并且止回阀机构允许加压流体从加压流体源传递到活塞室。

    Integrated pressure relief valve for hydraulic tensioner

    公开(公告)号:US10006524B2

    公开(公告)日:2018-06-26

    申请号:US15239045

    申请日:2016-08-17

    Abstract: An integrated valve for a hydraulic tensioner includes a pressure relief valve with an integrated disk check valve surrounding the pressure relief valve. A hydraulic tensioner includes a housing with a bore and a hollow piston slidably received within the bore. A piston spring biases the piston in a direction toward a power transmission device. The tensioner also includes an integrated check valve in a body of the housing. The integrated check valve includes a pressure relief valve mechanism and a disk check valve mechanism surrounding a circumference of the pressure relief valve mechanism. The pressure relief valve mechanism permits transfer of pressurized fluid from a piston chamber formed by the hollow piston to the source of pressurized fluid and the check valve mechanism permits transfer of pressurized fluid from the source of pressurized fluid to the piston chamber.

    Tensioner with stiffness controllable check valve

    公开(公告)号:US10900544B2

    公开(公告)日:2021-01-26

    申请号:US16009394

    申请日:2018-06-15

    Abstract: A hydraulic tensioner for an internal combustion engine for tensioning a span of a chain or a belt has a piston with an internal reservoir connected to a high pressure chamber through a check valve assembly. The check valve assembly has a disk seat received within the hollow bore of the body of the piston having at least one passage connecting the internal reservoir to the hydraulic pressure chamber; a check valve retainer coupled to the disk seat; a check valve disk received between the disk seat and the check valve retainer moveable between a first position and a second position, and a check valve spring received between the check valve disk and the check valve retainer.

Patent Agency Ranking