Gearwheel for an electric vehicle transmission

    公开(公告)号:US12196304B2

    公开(公告)日:2025-01-14

    申请号:US17604257

    申请日:2020-03-04

    Abstract: A gearwheel (20) for a gear step in an electric vehicle transmission (18) includes a gearwheel carrier and a toothed ring (30) having an external toothing (42). The toothed ring is rotationally fixable to the gearwheel carrier. The gearwheel carrier is formed by a first partial carrier (38) and a second partial carrier (40) that are at least partially axially spaced apart and extend from the toothed ring radially inward. An axial spacing of the two partial carriers is greater, at least partially, than an axial length of the toothed ring.

    Electro-hydraulic actuator for brake

    公开(公告)号:US12084017B2

    公开(公告)日:2024-09-10

    申请号:US17059695

    申请日:2019-05-24

    Abstract: An electro-hydraulic actuator for actuating a brake caliper may have an electric motor with a drive shaft, a transforming mechanism and a first housing to accommodate the transforming mechanism and support a second housing of the electric motor. The transforming mechanism may include a reduction gear to demultiply the rotary motion of the drive shaft. The reduction gear may have a crown with inner toothing in one piece and that is rotationally locked. The crown may have a front portion directly shape-coupled to and inserted in the second housing of the electric motor and a connection integral with the first housing of the transforming mechanism for a precise centering between the electric motor and the reduction gear with respect to the axis of the drive shaft and with respect to a central axis of the reduction gear.

    Sprocket and chain drive system
    4.
    发明授权

    公开(公告)号:US12031620B2

    公开(公告)日:2024-07-09

    申请号:US18233425

    申请日:2023-08-14

    Abstract: An object of the present invention is to provide a sprocket that mitigates the impact of tension fluctuations resulting from load torque changes, suppresses noise and vibration, ensures stable chain behavior, prevents sprocket durability loss and the generation of harmonics during rotation, along with a chain drive system. Tooth roots between adjacent teeth of the sprocket include those with a radial deviation from a root circle of a standard tooth profile, set within a predetermined numerical range corresponding to a tooth pitch. A phase variation pattern is created by changing a root radius in accordance with an angular position. The phase variation pattern has a waveform with an amplitude varied within a range of (1/7)Amax, where Amax represents a maximum amplitude. The chain drive system includes a plurality of sprockets and a chain passed over the sprockets, at least one of them being the above-described sprocket.

    Gear wheel
    6.
    发明授权

    公开(公告)号:US11852230B2

    公开(公告)日:2023-12-26

    申请号:US17010006

    申请日:2020-09-02

    CPC classification number: F16H55/17 F16H55/06 F16H55/12 F16H2055/065

    Abstract: The present invention relates to a gear wheel comprising an outer part (12) having a gear rim (14), an insert (16) which has an insert outer diameter (dEa) and a receptacle section (32) having an insert part inner diameter (dEi) for forming a shaft-hub connection, and a connecting part (18) which is arranged between the insert part (16) and the outer part (12) and which connects the insert part (16) and the outer part (12) in a formfitting and/or materially-bonded and/or friction-locked manner, wherein the connecting part (18) has a number of ribs (27) or the connecting part (18) is formed by a number of ribs (27), wherein the ribs (27) each extend along a tangent (T) which abuts a tangent circle (CT), wherein the tangent circle (CT) has a tangent circle diameter (dCT) which is larger than or equal to the insert inner diameter (dEi) and smaller than or equal to the insert outer diameter (dEa).

    LIGHTWEIGHT GEAR
    7.
    发明公开
    LIGHTWEIGHT GEAR 审中-公开

    公开(公告)号:US20230383833A1

    公开(公告)日:2023-11-30

    申请号:US17813072

    申请日:2022-07-18

    CPC classification number: F16H55/14 F16H55/17 F16H55/06

    Abstract: A lightweight gear includes a hub, and a tooth ring defining a plurality of gear teeth. The tooth ring includes an inner core composed of a polymer-based material that is coupled to the lattice structure. The lightweight gear includes a lattice structure interconnecting the hub and the tooth ring. The lattice structure has a density that varies radially based on an operating condition of the lightweight gear and the lattice structure is composed of a metal or a metal alloy.

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