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    Hydraulic tensioner with controllable inlet pressure
    14.
    发明授权
    Hydraulic tensioner with controllable inlet pressure 有权

    公开(公告)号：US10738860B2

    公开(公告)日：2020-08-11

    申请号：US15714088

    申请日：2017-09-25

    Applicant: BorgWarner Inc.

    Inventor： Mark M. Wigsten ,  Kevin B. Todd ,  Dale N. Smith ,  Sean R. Simmons ,  Seongdo Hong

    IPC: F16H7/08

    Abstract: A pressure regulator is in fluid communication with a supply inlet of a hydraulic tensioner to actively control fluid to the inlet of the hydraulic tensioner. By actively controlling the pressure regulator based on engine conditions and thus the oil pressure being fed to the hydraulic tensioner, the oil pressure to the hydraulic tensioner may be reduced at low engine speeds, increasing the efficiency of the timing system, or allowing full oil pressure at high engine speeds and low engine temperature.

    TENSIONER WITH SPRING FORCE CONTROL IN A SECOND BORE
    16.
    发明申请
    TENSIONER WITH SPRING FORCE CONTROL IN A SECOND BORE 有权
    具有弹簧力控制的张紧器在第二个孔中

    公开(公告)号：US20150330482A1

    公开(公告)日：2015-11-19

    申请号：US14651292

    申请日：2013-12-02

    Applicant: BORGWARNER INC.

    Inventor： Kevin B. Todd ,  Dale N. Smith

    IPC: F16H7/08 ,  F02B67/06

    CPC classification number: F16H7/0836 ,  F02B67/06 ,  F16H7/0848 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0893

    Abstract: A tensioner for tensioning a chain span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.

    Abstract translation: 用于张紧使用两个活塞的链跨的张紧器。 两个活塞的运动可以联接在一起。 第一活塞为链跨提供阻尼，第二活塞为链跨提供可变的，主导的和自动调节的弹力。 张紧器自动调整平均张力，以保持链条张力尽可能低，而不会牺牲链条控制，显着提高新链条条件下的驱动效率和动态载荷条件。

    Non-prevalent order random sprocket
    17.
    发明授权
    Non-prevalent order random sprocket 有权

    公开(公告)号：US10907721B2

    公开(公告)日：2021-02-02

    申请号：US16060432

    申请日：2016-12-01

    Applicant: BorgWarner Inc.

    Inventor： Kevin B. Todd

    IPC: F16H55/30

    Abstract: A non-prevalent order random sprocket for an internal combustion engine comprising a pattern of pitch radii, such that the radial variation of the pitch radii excite tensions at non-prevalent orders in a drive system of the internal combustion engine.

    Tensioner with spring force control in a second bore
    18.
    发明授权
    Tensioner with spring force control in a second bore 有权

    公开(公告)号：US10436291B2

    公开(公告)日：2019-10-08

    申请号：US15599924

    申请日：2017-05-19

    Applicant: BorgWarner Inc.

    Inventor： Kevin B. Todd ,  Dale N. Smith

    IPC: F16H7/08 ,  F02B67/06

    Abstract: A tensioner for tensioning a chain span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.

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