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    MULTI-PLUNGER PUMPS AND ASSOCIATED DRIVE SYSTEMS
    2.
    发明申请
    MULTI-PLUNGER PUMPS AND ASSOCIATED DRIVE SYSTEMS 有权

    公开(公告)号：US20210041009A1

    公开(公告)日：2021-02-11

    申请号：US16827166

    申请日：2020-03-23

    Applicant: U.S. Well Services, LLC

    Inventor： Jared Oehring ,  Lon Robinson ,  Brandon N. Hinderliter ,  Alexander James Christinzio

    IPC: F16H3/52 ,  F04B17/03 ,  F04B23/04 ,  E21B43/20 ,  F04B15/02 ,  F04B47/02 ,  E21B43/26 ,  E21B37/00 ,  F04B49/20 ,  F16H39/02

    Abstract: A hydraulic fracturing system for fracturing a subterranean formation is described according to various embodiments. In an embodiment, the system can include a multi-plunger hydraulic fracturing pump fluidly connected to a well associated with the subterranean formation, the multi-plunger pump configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation. In an embodiment, a plurality of motors can be positioned to power the multi-plunger pump, and a planetary gear train can have a plurality of pinion gears in rotational contact with each of the plurality of motors. In an embodiment, a gear ratio of the planetary gear train and a speed at which the plurality of motors operates can be selected so as to limit a maximum pump speed associated with the multi-plunger pump.

    Multi-plunger pumps and associated drive systems
    3.
    发明授权
    Multi-plunger pumps and associated drive systems 有权

    公开(公告)号：US10598258B2

    公开(公告)日：2020-03-24

    申请号：US16210807

    申请日：2018-12-05

    Applicant: U.S. Well Services, Inc.

    Inventor： Jared Oehring ,  Lon Robinson ,  Brandon N. Hinderliter ,  Alexander James Christinzio

    IPC: E21B43/20 ,  F16H3/52 ,  F04B17/03 ,  F04B23/04 ,  F04B15/02 ,  F04B47/02 ,  E21B43/26 ,  E21B37/00 ,  F04B49/20 ,  F16H39/02

    Abstract: A hydraulic fracturing system for fracturing a subterranean formation is described according to various embodiments. In an embodiment, the system can include a multi-plunger hydraulic fracturing pump fluidly connected to a well associated with the subterranean formation, the multi-plunger pump configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation. In an embodiment, a plurality of motors can be positioned to power the multi-plunger pump, and a planetary gear train can have a plurality of pinion gears in rotational contact with each of the plurality of motors. In an embodiment, a gear ratio of the planetary gear train and a speed at which the plurality of motors operates can be selected so as to limit a maximum pump speed associated with the multi-plunger pump.

    ELECTRO-MAGNETIC RATCHET CONTROL APPARATUS AND METHOD
    5.
    发明申请
    ELECTRO-MAGNETIC RATCHET CONTROL APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20190242467A1

    公开(公告)日：2019-08-08

    申请号：US16267667

    申请日：2019-02-05

    Applicant: Differential Dynamics Corporation

    Inventor： Kyung Soo Han

    IPC: F16H29/04 ,  F16H3/52 ,  F16D27/01

    CPC classification number: F16H29/04 ,  F16D27/01 ,  F16H3/52

    Abstract: A speed converter converting infinitely variable reciprocating input to uni-directional output, for example, comprising a driver, the driver comprising a variable pitch cam and a rack gear and one-way clutch bearings or Sprags and output shaft, the driver having an oblong shape may be converted to provide direction control in either of two directions and free-wheeling. The one-way clutch bearings or Sprags of a first Goldfinch speed converter are modified to comprise, concentric with the output shaft, a permanent magnet imbedded in a driven gear and direction controlling stator coils. A plurality of four (or more) electrical pulses (sine curves) may be applied to the stator coils to provide three possible outputs of desired speed: a forward output direction, a neutral or free-wheeling output and a reverse output direction. In this manner, an electro-magnetic ratchet control system may modify the speed converter to incorporate speed control, engine braking, and clockwise and counterclockwise output shaft direction control as well.

    Vehicular power transmission device
    6.
    发明授权
    Vehicular power transmission device 有权
    车载动力传动装置

    公开(公告)号：US09234571B2

    公开(公告)日：2016-01-12

    申请号：US14413817

    申请日：2013-07-22

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Kazuki Ichikawa ,  Soichi Sugino ,  Shinichi Shimodaira

    IPC: F16H29/04 ,  F16H3/52 ,  F16H3/60 ,  F16H37/12 ,  B60K1/00

    CPC classification number: F16H29/04 ,  B60K2001/001 ,  F16H3/52 ,  F16H3/60 ,  F16H37/12

    Abstract: A selector device disposed between a transmission and a differential gear includes a first output shaft connected to the transmission, a second output shaft connected to the differential gear, a third output shaft relatively rotatably fitted on an outer periphery of the second output shaft, a planetary gear mechanism having a sun gear connected to the third output shaft and a ring gear connected to the differential gear, a first meshing switching mechanism that is capable of switching between a state in which the first and third output shafts are joined and the second output shaft is detached and a state in which the first to third output shafts are joined, and a second meshing switching mechanism that is capable of joining a carrier of the planetary gear mechanism to a casing.

    Abstract translation: 设置在变速器和差速齿轮之间的选择器装置包括连接到变速器的第一输出轴，连接到差动齿轮的第二输出轴，相对可旋转地装配在第二输出轴的外周上的第三输出轴，行星 齿轮机构，具有连接到第三输出轴的太阳齿轮和与差速齿轮连接的齿圈;第一啮合切换机构，能够在第一和第三输出轴接合的状态与第二输出轴 分离和第一至第三输出轴接合的状态，以及能够将行星齿轮机构的行星架接合到壳体的第二啮合切换机构。

    Group transmission device, in particular split transmission
    7.
    发明授权
    Group transmission device, in particular split transmission 有权

    公开(公告)号：US12018736B2

    公开(公告)日：2024-06-25

    申请号：US17768744

    申请日：2020-10-07

    Applicant: Daimler Truck AG

    Inventor： Frank Steffens ,  Marc Stroelin ,  Jens Luckmann

    IPC: F16H37/04 ,  F16H3/52 ,  F16H37/06 ,  F16H37/08 ,  F16H57/00

    CPC classification number: F16H37/046 ,  F16H3/52 ,  F16H57/0025 ,  F16H37/065 ,  F16H2037/0873 ,  F16H57/0037

    Abstract: A group transmission device includes a main transmission which has a main shaft, a countershaft and a spur gear pair which includes a first spur gear arranged coaxially and axially overlapping with the main shaft and a second spur gear arranged coaxially and axially overlapping with the countershaft. A range group has a first shaft non-rotationally connected to the main shaft, a second shaft non-rotationally connected to a transmission output shaft, a third shaft and a blocking switching unit. A first switching unit non-rotationally connects the third shaft to a housing. A second switching unit has an axially shiftable switching element and non-rotationally connects the third shaft to the first spur gear. The main shaft is coupled non-rotationally to a transmission input shaft. A third switching unit has an axially shiftable further switching element and non-rotationally connects the first spur gear to the first shaft of the range group.

    Group Transmission Device, in Particular Split Transmission
    8.
    发明公开
    Group Transmission Device, in Particular Split Transmission 审中-公开

    公开(公告)号：US20240141972A1

    公开(公告)日：2024-05-02

    申请号：US17768744

    申请日：2020-10-07

    Applicant: Daimler Truck AG

    Inventor： Frank STEFFENS ,  Marc STROELIN ,  Jens LUCKMANN

    IPC: F16H37/04 ,  F16H3/52 ,  F16H57/00

    CPC classification number: F16H37/046 ,  F16H3/52 ,  F16H57/0025 ,  F16H37/065 ,  F16H57/0037

    Abstract: A group transmission device includes a main transmission which has a main shaft, a countershaft and a spur gear pair which includes a first spur gear arranged coaxially and axially overlapping with the main shaft and a second spur gear arranged coaxially and axially overlapping with the countershaft. A range group has a first shaft non-rotationally connected to the main shaft, a second shaft non-rotationally connected to a transmission output shaft, a third shaft and a blocking switching unit. A first switching unit non-rotationally connects the third shaft to a housing. A second switching unit has an axially shiftable switching element and non-rotationally connects the third shaft to the first spur gear. The main shaft is coupled non-rotationally to a transmission input shaft. A third switching unit has an axially shiftable further switching element and non-rotationally connects the first spur gear to the first shaft of the range group.

    TRANSMISSION, DRIVE TRAIN AND VEHICLE COMPRISING TRANSMISSION
    10.
    发明申请
    TRANSMISSION, DRIVE TRAIN AND VEHICLE COMPRISING TRANSMISSION 有权

    公开(公告)号：US20220402359A1

    公开(公告)日：2022-12-22

    申请号：US17771753

    申请日：2020-10-22

    Applicant: ZF Friedrichshafen AG

    Inventor： Matthias Reisch ,  Stefan Beck

    IPC: B60K17/356 ,  F16H37/08 ,  B60K17/04 ,  B60K17/346 ,  F16H3/52

    Abstract: A transmission may include an input shaft, a first output shaft, a second output shaft, a first planetary gearset, and a second planetary gearset connected to the first planetary gearset, where the planetary gearsets each comprise numerous elements. The input shaft, the two output shafts, the planetary gearsets, and their elements may be arranged and designed such that a torque input via the input shaft is converted and distributed in a defined ratio to the two output shafts, and the formation of a combined torque is prevented. At least a third element of the first planetary gearset may be connected to a first element of the second planetary gearset via a shaft for conjoint rotation.

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