Pulley for a motor vehicle engine

    公开(公告)号:US11946512B2

    公开(公告)日:2024-04-02

    申请号:US17760382

    申请日:2021-02-11

    CPC classification number: F16D11/14 F16D27/09 F16D27/105 F16D27/112

    Abstract: A pulley unit has a hub configured to be connected to a crankshaft, a pulley coaxial to the hub and supported in a rotationally free manner with respect thereto, a clutch interposed between the hub and the pulley, and an actuator for controlling the clutch, The clutch has an inner disc rotationally coupled to the hub and an engagement portion housed inside the pulley, a mobile member axially movable between an engagement position in which the mobile member rotationally couples the pulley to the engagement portion of the inner disc and a disengagement position in which the pulley is rotationally free with respect to the inner disc, and an elastic element acting on the mobile member to push it towards the engagement position.

    CONTROLLED TENSIONER FOR AN ACCESSORY DRIVE AND ACCESSORY DRIVE COMPRISING SAID TENSIONER
    2.
    发明申请
    CONTROLLED TENSIONER FOR AN ACCESSORY DRIVE AND ACCESSORY DRIVE COMPRISING SAID TENSIONER 有权
    用于附件驱动器的控制式张紧器和包含上述张紧器的附件驱动器

    公开(公告)号:US20150275751A1

    公开(公告)日:2015-10-01

    申请号:US14410070

    申请日:2013-06-21

    Abstract: A tensioner for a start-stop accessory drive comprises a movable support, a pulley carried by the support to contact a belt of the drive, a spring to load the support so as to tension the belt, and an actuator controlled and movable to push said pulley against the belt in one direction by means of a load in parallel and additional with respect to that of the spring and an irreversible device which enables the action of the actuator and prevents a displacement of said support in response to the loads of the belt.

    Abstract translation: 用于启动 - 停止附件驱动器的张紧器包括可移动支撑件,由支撑件承载以接触驱动器的带的滑轮,用于加载支撑件以便张紧皮带的弹簧以及被控制并可移动以推动所述 滑轮通过平行的负载并相对于弹簧的额外载荷在一个方向上抵靠皮带,以及不可逆的装置,其使致动器的作用能够防止所述支撑件响应于皮带的载荷而移位。

    Filtering pulley for a belt drive

    公开(公告)号:US09850997B2

    公开(公告)日:2017-12-26

    申请号:US14910403

    申请日:2014-08-06

    CPC classification number: F16H55/36 F16F15/1216 F16H2055/366

    Abstract: A filtering pulley for an accessory drive of an internal combustion engine, having a hub suitable for connection to an engine accessory, an annular crown provided with a profile configured to cooperate with a drive belt, a coil spring able to transmit torque between the crown and the hub, a first carrier constrained to a first end of the spring and a second carrier constrained to a second end of the spring. The annular crown is externally coaxial to the hub and supported in a rotationally free manner on the hub, and each of the carriers is rotationally coupled to both the hub and the crown with a limited possibility of relative rotation with respect to each of them.

Patent Agency Ranking