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    Serpentine drive system with improved over-running alternator decoupler
    2.
    发明授权
    Serpentine drive system with improved over-running alternator decoupler 失效

    公开(公告)号：US6083130A

    公开(公告)日：2000-07-04

    申请号：US73916

    申请日：1998-05-07

    申请人： Pierre A. Mevissen ,  Kin Lam ,  Mats K. Lipowski ,  Klaus K. Bytzek ,  Henry W. Thomey

    发明人： Pierre A. Mevissen ,  Kin Lam ,  Mats K. Lipowski ,  Klaus K. Bytzek ,  Henry W. Thomey

    IPC分类号： B62M9/06 ,  F02B67/06 ,  F16D7/02 ,  F16D41/20 ,  F16H55/36 ,  F16H9/00 ,  F16D11/00 ,  F16D11/06

    CPC分类号： F02B67/06 ,  F16D41/206 ,  F16D7/022 ,  F16H55/36 ,  F02B2275/06

    摘要： A serpentine belt drive system for an automotive vehicle comprising a drive assembly including an internal combustion engine having an output shaft with a driving pulley thereon rotatable about a driving pulley axis. A sequence of driven assemblies each has a driven pulley rotatable about an axis parallel with the driving pulley axis and a serpentine belt mounted in cooperating relation with the driving pulley and with the driven pulleys in a sequence which corresponds with the sequence of the driven assemblies when related to the direction of movement of the belt to cause said driven pulleys to rotate in response to the rotation of the driving pulley. The sequence of driven assemblies includes an alternator assembly including an alternator shaft mounted for rotation about a shaft axis. A hub structure is fixedly carried by the alternator shaft for rotation therewith about the shaft axis. A spring and one-way clutch mechanism couples the alternator pulley with the hub structure. The spring and one-way clutch mechanism comprises a resilient spring member separately formed from and connected in series with a one-way clutch member. The resilient spring member is constructed and arranged to transmit the driven rotational movements of the alternator pulley by the serpentine belt to the hub structure such that the alternator shaft is rotated in the same direction as the alternator pulley while being capable of instantaneous relative resilient movements in opposite directions with respect to the alternator pulley during the driven rotational movement thereof. The one-way clutch member is constructed and arranged to allow the hub structure and hence the alternator shaft to rotate at a speed in excess of the rotational speed of the alternator pulley when the speed of the engine output shaft is decelerated to an extent sufficient to establish the torque between the alternator pulley and the hub structure at a predetermined negative level.

    Timing belt tensioner with stops controlled by frictional brake
    3.
    发明授权
    Timing belt tensioner with stops controlled by frictional brake 有权
    定时皮带张紧器，带有由摩擦制动器控制的停止

    公开(公告)号：US07507172B2

    公开(公告)日：2009-03-24

    申请号：US10497958

    申请日：2002-12-03

    申请人： Jorma J. Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats K. Lipowski ,  Richard A. Forrest

    发明人： Jorma J. Lehtovaara ,  Jacek Stepniak ,  Marek Frankowski ,  Mats K. Lipowski ,  Richard A. Forrest

    IPC分类号： F16H7/08

    CPC分类号： F16H7/129 ,  F16D41/206 ,  F16H7/0831 ,  F16H7/0834 ,  F16H7/1218 ,  F16H2007/081 ,  F16H2007/084

    摘要： A tensioner (10) features a backstop device (40) which allows free rotation of the pivot arm (20) in one direction but not the other. Reverse rotation is prevented by friction that is able to resist torque on the pivot arm (20) under ordinary operating conditions which otherwise could permit belt tooth-skip to occur. In disclosed embodiments, the backstop device (40) includes a stop sleeve (50) and a clamp holder (60) which are axially interlocked and are able to rotate relative to each other. A clutch spring (80) surrounds permits relative rotation between the stop sleeve (50) and the clamp holder (60) in one direction but not the other. A clamp (70) retained within the clamp holder (60) frictionally engages the pivot shaft. A viscous coupling may be used in place of the frictional clamp.

    摘要翻译： 张紧器（10）具有支撑装置（40），其允许枢转臂（20）在一个方向上而不是另一个方向上自由旋转。 通过摩擦阻止反向旋转，该摩擦能够在正常操作条件下抵抗枢转臂（20）上的扭矩，否则可能允许皮带齿跳跃发生。 在所公开的实施例中，止回装置（40）包括止动套筒（50）和夹持保持器（60），所述止动套筒轴向互锁并且能够相对于彼此旋转。 离合器弹簧（80）包围允许止动套筒（50）和夹具保持器（60）在一个方向上的相对旋转，而不是另一个。 保持在夹具保持器（60）内的夹具（70）摩擦地接合枢转轴。 可以使用粘性联轴器代替摩擦夹具。