ELECTROMAGNETIC CONNECTING DEVICE
    1.
    发明申请

    公开(公告)号:US20180209490A1

    公开(公告)日:2018-07-26

    申请号:US15878364

    申请日:2018-01-23

    CPC classification number: F16D27/112 F16D13/76 F16D2027/005 F16D2027/007

    Abstract: An electromagnetic clutch includes a field core including a coil storage groove, and a rotor including a core storage groove. The coil storage groove is formed by an inner cylindrical portion, an outer cylindrical portion, and a bottom portion. The bottom portion of the field core wholly projects to the outside of the core storage groove. The outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion include a first transition surface and a second transition surface, respectively, on the bottom portion side. Each of the first transition surface and the second transition surface includes a tilting surface that gradually narrows the groove width of the coil storage groove along with an increase in a distance from the side of the opening of the coil storage groove.

    BELT PULLEY DECOUPLER
    4.
    发明申请

    公开(公告)号:US20180023638A1

    公开(公告)日:2018-01-25

    申请号:US15547089

    申请日:2016-01-28

    CPC classification number: F16D41/206 F16D3/12 F16D13/76 F16D43/20

    Abstract: A belt pulley decoupler is provided for transmitting a drive torque from the belt of an auxiliary unit belt drive to the shaft of one of the auxiliary units. The decoupler a belt pulley, a hub fixed on the shaft, and a one-way clutch and a coil torsion spring arranged in series in the drive torque flow between the belt pulley and the hub. The spring extends about the axis of rotation of the belt pulley decoupler and widens radially under transmission of a drive torque. The ends of the coil torsion spring contact respective axially ascending ramp-shaped spring support surface of a first spring plate and of a second spring plate. At least one of the spring plates is a sheet metal shaped part having a spring support surface integrally formed thereon.

    LOCK-UP DEVICE FOR TORQUE CONVERTER
    6.
    发明申请

    公开(公告)号:US20170268578A1

    公开(公告)日:2017-09-21

    申请号:US15434755

    申请日:2017-02-16

    Inventor: Satoru MATSUDA

    Abstract: A lock-up device for a torque converter transmits a torque from a front cover to a transmission-side member through a turbine. The lock-up device includes a clutch portion, a piston, a support member, and a synchronization mechanism. The clutch portion is disposed between the front cover and the turbine. The piston is movable in an axial direction. The piston turns the clutch portion into a torque transmission state. The support member supports the piston such that the piston is movable. The support member defines an oil chamber together with the piston. The oil chamber is supplied a hydraulic oil for activating the piston. The synchronization mechanism causes the piston to rotate in synchronization with the support member.

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