A PLANETARY GEARBOX
    3.
    发明申请
    A PLANETARY GEARBOX 审中-公开

    公开(公告)号:US20180320761A1

    公开(公告)日:2018-11-08

    申请号:US15774605

    申请日:2016-05-19

    IPC分类号: F16H3/66

    摘要: Parallel shafting gearbox have problems like the frictional losses, gear shifting is very hard under load, wear and tear of gears while shifting and operating of the gears, load distribution on single driven gear and it is hard to derive large reductions gear ratio easily. Present invention introduces a gearbox as a solution for above problems using PGTU (planetary gear trains unit)s such that all the PGTUs in gear box are connected serially with axles on which planetary gears are mounted, of the PGTUs which are arranged between them, forming a series of CPCAs, for transmission from rotating driving shaft on which sun gears are mounted to the driven shaft by braking the motion of the ring gear of PGTU through which the transmission is to be carried out while setting free the ring gears of rest of the PGTUs in the gear box, It is useful in automobile vehicle etc.

    EPICYCLIC REDUCTION UNIT FOR APPLICATIONS WITH AN UPWARD OUTPUT

    公开(公告)号:US20180283501A1

    公开(公告)日:2018-10-04

    申请号:US15525143

    申请日:2015-11-05

    IPC分类号: F16H1/46 F16H57/08

    CPC分类号: F16H1/46 F16H1/28 F16H57/082

    摘要: An epicyclic reduction unit for applications with an upward output, which comprises a casing for containing at least one first epicyclic reduction stage that is interposed between an input actuation unit and an output shaft that is arranged in an upper region, the first stage being composed of a driving sun gear that rotates about a main rotation axis that is vertical and a ring gear that is integral with the casing, between which a plurality of planet gears is engaged which are supported in rotation about their own longitudinal axis and about the rotation axis by a driven planet carrier, which in turn rotates about the rotation axis, means being provided for connecting by suspension at least the planet carrier of the first stage to the output shaft, the sun gear of the first stage resting on the input actuation unit, which actuates it in rotation about the rotation axis.

    PLANETARY WHEEL DRIVE BRAKE
    6.
    发明申请

    公开(公告)号:US20180252283A1

    公开(公告)日:2018-09-06

    申请号:US15451343

    申请日:2017-03-06

    摘要: A planetary wheel drive uses a brake having a stamped spring plate which includes a plurality of spring stabilizer connections. Each one of the plurality of springs is mechanically bonded to a respective one of the plurality of spring stabilizer connections. A brake piston includes a bore therethrough and resides in sliding engagement with the stationary spindle. The brake piston is generally cylindrically shaped with an inner portion and an outer portion. The plurality of coil springs reside between said spring stabilizers and said inner shoulder of said brake piston. Pressurized hydraulic fluid releases the brake.

    TURBINE ENGINE GEARBOX
    7.
    发明申请

    公开(公告)号:US20180245518A1

    公开(公告)日:2018-08-30

    申请号:US15943812

    申请日:2018-04-03

    发明人: Michael E. McCune

    摘要: A gas turbine engine according to an example of the present disclosure includes, among other things, a fan, a compressor, a combustor, and a spool including a fan drive turbine that drives the fan through a gear reduction. The gear reduction includes at least two double helical gears in meshed engagement, each of the at least two double helical gears having a first plurality of gear teeth separated from a second plurality of gear teeth such that a first end of the first plurality of gear teeth and a first end of the second plurality of gear teeth are spaced apart by an axial distance. Each of the first plurality of gear teeth is offset a first circumferential offset distance in relation to the next gear tooth of the second plurality of gear teeth when moving in a circumferential direction relative to respective axes.