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104 条记录 (耗时 0.023 秒)

    Electro-hydraulic high-pressure oilfield pumping system
    1.
    发明授权
    Electro-hydraulic high-pressure oilfield pumping system 有权

    公开(公告)号：US11891884B2

    公开(公告)日：2024-02-06

    申请号：US17603369

    申请日：2020-04-17

    申请人： Twin Disc, Inc.

    发明人： Edwin E. Wilson

    IPC分类号： E21B43/26 ,  F04B17/03 ,  F04B23/06 ,  F04B49/06

    CPC分类号： E21B43/2607 ,  E21B43/26 ,  F04B17/03 ,  F04B23/06 ,  F04B49/065

    摘要： An electro-hydraulic high-pressure oilfield pumping system includes a fracturing (frac) pump and a primary electric motor as a prime mover that delivers power to the frac pump. The primary electric motor may be a constant speed AC (alternating current) motor. A hydraulic starting motor may rotate a shaft of the primary electric motor to achieve or approximate its fixed rated speed before the primary electric motor is energized. A slow frac hydraulic motor may rotate the shaft of the primary electric motor as a passive torque transmission device that delivers power in a downstream direction through a transmission and to the frac pump.

    Fracturing of a Wet Well Utilizing an Air/Fuel Mixture
    4.
    发明申请
    Fracturing of a Wet Well Utilizing an Air/Fuel Mixture 有权

    公开(公告)号：US20210277759A1

    公开(公告)日：2021-09-09

    申请号：US17122729

    申请日：2020-12-15

    申请人： Twin Disc, Inc.

    发明人： Edwin E. Wilson

    IPC分类号： E21B43/263 ,  C09K8/62 ,  C09K8/66 ,  C09K8/80 ,  E21B43/248

    摘要： A method of producing subterranean fractures in geologic formations having a significant amount of water present (a wet well) for the extraction of hydrocarbons therefrom includes flowing an explosive hydrophobic emulsion mixture to protect the air and fuel mixture subsequently flowed into a well hole. The well hole may then be sealed with a packer plug creating a compression chamber with the air and fuel mixture. A liquid, such as water, may be pumped into the well hole to create pressure in the compression chamber. The build-up of pressure eventually causes auto-ignition of the air and fuel mixture which fractures the formation. The water may then rush into the compression chamber which thermally shocks the area causing additional fractures. The water may vaporize to steam and thoroughly disinfect the well hole eliminating the need for added biocides.

    Clutch Stack Wear Sensor System for a Power Transmission Device
    5.
    发明申请
    Clutch Stack Wear Sensor System for a Power Transmission Device 有权

    公开(公告)号：US20210239142A1

    公开(公告)日：2021-08-05

    申请号：US17171698

    申请日：2021-02-09

    申请人： Twin Disc, Inc.

    发明人： Ryan J. Malloy

    IPC分类号： F15B15/28 ,  F16D25/12 ,  F16D48/06

    摘要： A power transmission device with a clutch plate wear sensor system includes a power transmission shaft configured to transmit torque and a clutch configured to selectively deliver power into or out of the power transmission shaft. The clutch includes a clutch stack and clutch piston that moves to selectively actuate the clutch stack between an engaged state to deliver power through the clutch and a disengaged state to not deliver power through the clutch. The clutch stack wear sensor system includes at least one detectable element arranged for movement in unison with the clutch piston and a sensor arranged to detect the detectable element and provide a signal indicative of a wear characteristic of the clutch stack.

    Trimmable rudder
    6.
    发明授权
    Trimmable rudder 有权

    公开(公告)号：US09889918B2

    公开(公告)日：2018-02-13

    申请号：US15006913

    申请日：2016-01-26

    申请人： Twin Disc, Inc.

    发明人： Philip Rolla

    IPC分类号： B63H25/06 ,  B63H25/14 ,  B63H25/30 ,  B63H25/36 ,  B63H25/38

    CPC分类号： B63H25/06 ,  B63H25/30 ,  B63H25/36 ,  B63H25/38 ,  B63H25/381 ,  B63H25/382 ,  B63H2025/066 ,  B63H2025/385

    摘要： A trimmable rudder system for a marine vessel such as a planing power boat, the system including a pair of rudder assemblies, each of which includes a rudder blade movably coupled to the hull by way of a ball-and-socket joint. Each rudder assembly includes a rudder shaft that extends from the rudder blade through the ball-and-socket joint and can be rotated for rotating the rudder blade to steer the power boat. Each rudder shaft may be operably coupled to a pair of actuators configured to control trim and camber positions of the rudder blade so that the pair of rudder blades can collectively achieve a desired hull trim change, including listing control and planing control of the power boat. Steering position, trim position, and camber position of the rudder blades may be simultaneously changed.

    Rooster tail suppression apparatus
    7.
    发明授权
    Rooster tail suppression apparatus 有权
    公鸡尾巴抑制装置

    公开(公告)号：US09096299B2

    公开(公告)日：2015-08-04

    申请号：US14215946

    申请日：2014-03-17

    申请人： Twin Disc, Inc.

    发明人： Philip Rolla ,  Marzio Porro

    IPC分类号： F03B3/12 ,  B63H1/28 ,  F03B13/26 ,  B63H1/18

    CPC分类号： B63H1/28 ,  B63H2001/185 ,  F03B13/264 ,  Y02E10/28

    摘要： A modifier may be used to prevent formation of a rooster tail when surface drive propellers are used with marine vessels. The modifier may be retractable by attaching it to the transom of the marine vessel or fixed-mounted by attaching it to the drive housing. The modifier changes the direction of the rooster tail so it flows substantially parallel to the surface of the water and hull of the marine vessel.

    摘要翻译： 当表面驱动螺旋桨与海洋船舶一起使用时，可使用改良剂来防止形成公鸡尾巴。 修改器可以通过将其附接到海洋船的横梁来缩回，或者通过将其附接到驱动器壳体而被固定安装。 修改器改变了雄鸡尾巴的方向，使其大致平行于水体和船体的表面平行流动。

    Electronically controlled power transmission
    8.
    发明授权
    Electronically controlled power transmission 失效
    电子控制电力传输

    公开(公告)号：US3805640A

    公开(公告)日：1974-04-23

    申请号：US28758572

    申请日：1972-09-08

    申请人： TWIN DISC INC

    发明人： SCHNEIDER R ,  SNOY J

    IPC分类号： F16H47/06 ,  B60K20/00 ,  B60W10/06 ,  B60W30/18 ,  F16H59/04 ,  F16H61/02 ,  F16H61/14 ,  F16H61/684 ,  F16H63/02 ,  F16H63/44 ,  F16H47/00 ,  B60K21/00 ,  F16H3/08

    CPC分类号： B60W10/06 ,  B60W10/11 ,  B60W30/18 ,  B60W2510/104 ,  B60W2540/16 ,  B60W2710/021 ,  F16H59/044 ,  F16H61/0248 ,  F16H61/684 ,  Y10T74/19153 ,  Y10T74/19437 ,  Y10T477/63378 ,  Y10T477/63385 ,  Y10T477/634 ,  Y10T477/693625

    摘要： A power transmission includes an engine-driven lock-up type torque converter for driving a speed changing gear shift mechanism shiftable to different speed ranges by solenoid operated clutch valves. An electronic controller provides output signals to operate the clutch valves and also to inhibit lock-up in certain speed ranges. The controller receives input signals from a manually operable multiposition speed range selection switch; from speed sensors on the torque converter and the gear shift mechanism; and from an engine throttle position control. The control effects automatic shifting to selected speed ranges and automatically shifts itself to maintain selected speeds; introduces a time delay in each transitional speed range to prevent hunting; effects downshifting, shifting to neutral and reversal only when correct speed ranges are reached; avoids shifting to neutral unless that position is actually selected; and performs other functions.

    摘要翻译： 动力传动装置包括用于驱动变速换档机构的发动机驱动的锁止式液力变矩器，其通过电磁离合器阀可转换到不同的转速范围。 电子控制器提供输出信号以操作离合器阀，并且还可以在一定速度范围内禁止锁定。 控制器从手动操作的多位置速度范围选择开关接收输入信号; 变速器上的速度传感器和变速机构; 并从发动机节气门位置控制。 控制效果自动转换到选定的速度范围，并自动转换自身以保持选定的速度; 在每个过渡速度范围内引入时间延迟，以防止狩猎; 只有在达到正确的速度范围时才会降档，转换到中立和反转; 避免转移到中性，除非实际选择该位置; 并执行其他功能。

    Torque limiting coupling
    9.
    发明授权
    Torque limiting coupling 失效
    扭矩限制联轴器

    公开(公告)号：US3722644A

    公开(公告)日：1973-03-27

    申请号：US3722644D

    申请日：1972-01-31

    申请人： TWIN DISC INC

    发明人： STEINHAGEN H

    IPC分类号： F16H35/10 ,  F16D43/20 ,  F16D43/206

    CPC分类号： F16D43/206

    摘要： A torque limiting coupling having a driving member and a driven member and which limits the amount of torque transmitted between the members. When excessive torque is attempted to be transmitted, the coupling is released and over-runs freely until the coupling is reset by causing reversal of its relative direction of rotation. The coupling utilizes a plurality of balls which act between pockets in the two opposing members, thereby causing axial separation and release of the coupling when one of the members rotationally moves relative to the other.

    Aerodynamic torque converter
    10.
    发明授权
    Aerodynamic torque converter 失效
    AERODYNAMIC TORQUE转换器

    公开(公告)号：US3677003A

    公开(公告)日：1972-07-18

    申请号：US3677003D

    申请日：1971-02-01

    申请人： TWIN DISC INC

    发明人： SCHNEIDER RAYMOND C

    IPC分类号： F16H41/26 ,  F16D33/00 ,  F16H41/00

    CPC分类号： F16H41/26

    摘要： An aerodynamic torque converter of the fixed housing type and having an impeller, a turbine, and either one or more stages of stators. The aerodynamic torque converter has the exit angles of its impeller blades and of its radial inflow stator blades arranged within certain ranges, to provide a flat horsepower input curve, at constant input rotational speed, for the converter. The torque converter finds particular utility with a prime mover which runs at a constant speed and constant torque, such as a gas turbine. An aerodynamic torque converter of the above type also having continually converging flow path areas in the outer and inner bends of the flow path.

    摘要翻译： 具有固定壳体类型的空气动力学变矩器，并具有叶轮，涡轮机和一个或多个定子的阶段。 空气动力学变矩器具有其叶轮叶片和其径向流入定子叶片的出口角度，其排列在一定范围内，以提供恒定输入转速下的转换器的平坦马力输入曲线。 变矩器特别适用于以恒速和恒定转矩运行的原动机，如燃气轮机。 上述类型的空气动力学变矩器在流动路径的外弯曲和内弯曲中也具有连续的会聚流路区域。