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    SERVOLESS MOTOR
    22.
    发明申请
    SERVOLESS MOTOR 审中-公开

    公开(公告)号：US20200040867A1

    公开(公告)日：2020-02-06

    申请号：US16050001

    申请日：2018-07-31

    Applicant: Danfoss Power Solutions, Inc.

    Inventor： Steven Leege ,  Stephen Frantz ,  Jeffrey C. Hansell

    IPC: F03C1/06 ,  F03C1/00 ,  F03C1/08 ,  F04B1/20 ,  F04B1/32 ,  F04B1/12

    Abstract: A hydraulic piston unit including a rotational group for driving or being driven by a driving shaft, and having a tiltable displacement element for adjusting the displacement volume of the rotational group between a minimum or a maximum displacement, wherein, on t valve segment between a kidney-shaped inlet port and a kidney-shaped outlet port at respective dead end positions of reciprocally moveable working pistons first and second control ports are located in fluid connection with cylinder bores in the cylinder block, for controlling the position of the displacement element. The hydraulic piston unit further includes a control valve with a shiftable control valve spool fluidly connected via a high pressure port to a high pressure side of the hydraulic piston unit. The control valve spool is configured to conduct hydraulic fluid from the high pressure side to one of the first or the second control port.

    Axial piston machine having a basket
    24.
    发明授权
    Axial piston machine having a basket 有权

    公开(公告)号：US09657729B2

    公开(公告)日：2017-05-23

    申请号：US14284806

    申请日：2014-05-22

    Applicant: DANFOSS POWER SOLUTIONS INC.

    Inventor： Harry Rasch

    IPC: F01B1/06 ,  F04B27/22 ,  F04B1/20 ,  F04B1/24 ,  F04B53/22 ,  F03C1/06

    CPC classification number: F04B27/22 ,  F03C1/0642 ,  F04B1/2035 ,  F04B1/2064 ,  F04B1/24 ,  F04B53/22

    Abstract: Mounting structure for housing-free hydraulic axial piston machines of the bent axis or swash plate design, having a closing plate on which a cylinder block unit with displacing pistons arranged therein is supported, and having a drive or driven shaft. The mounting structure here is designed in the manner of a basket and has a receptacle for the drive or driven shaft and at least two struts which are in each case connected at one end to the receptacle and at the other end to the closing plate in such a manner that the closing plate, the cylinder block unit and the drive or driven shaft are held—analogously as in a housing—in a functionally ready position.

    SELF-CENTERING SERVO PISTON
    26.
    发明申请
    SELF-CENTERING SERVO PISTON 审中-公开
    自动中心伺服活塞

    公开(公告)号：US20160017997A1

    公开(公告)日：2016-01-21

    申请号：US14333948

    申请日：2014-07-17

    Applicant: Danfoss Power Solutions Inc.

    Inventor： Jaromir Tvaruzek ,  Vince Ewald ,  Michael J. Romey ,  Charlie Dvorak

    IPC: F16J1/08 ,  F16J9/26

    CPC classification number: F16J1/08 ,  F15B15/1452 ,  F16J9/26

    Abstract: A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.

    Abstract translation: 伺服活塞具有带有第一端和第二端的细长构件。 第二端具有设置在伺服活塞孔内的伺服活塞头。 伺服活塞头具有围绕伺服活塞头的外边缘设置的至少两个凹槽。 最后一个密封环被接纳在每个槽内。 在至少两个槽中使用环可减少侧向/横向振动和伺服孔负载。 同时，两个槽之间的空间在伺服活塞头和伺服活塞孔之间产生加压油挤压膜，由环密封，同时提供密封和阻尼功能。

    SPEED CONTROL SYSTEM FOR A HYDROSTATIC TRANSMISSION
    27.
    发明申请
    SPEED CONTROL SYSTEM FOR A HYDROSTATIC TRANSMISSION 有权
    用于水文传输的速度控制系统

    公开(公告)号：US20140372000A1

    公开(公告)日：2014-12-18

    申请号：US14301758

    申请日：2014-06-11

    Applicant: Danfoss Power Solutions Inc.

    Inventor： Frank J. Rozycki ,  Simon L. Nielsen ,  Gary R. LaFayette

    IPC: F16H61/02 ,  B60W10/06

    CPC classification number: F16H61/48 ,  F16H61/4017 ,  F16H61/4157 ,  F16H61/42 ,  F16H61/421 ,  F16H61/423 ,  F16H61/433

    Abstract: A speed control system for a hydrostatic transmission includes an engine having a drive shaft connected to a hydraulic pump. At least one hydrostatic motor is connected to the pump in a closed circuit by a flow line. Connected to the motor via a system shaft is a vehicle system. A controller is connected to a plurality of sensors and a high pressure relief valve that is connected to the flow line between the pump and the motor. Based on information received from the sensors, the controller sets the pump and motor displacements to limit the pressure to a value that will not overspeed the engine and allow the system to automatically provide braking beyond the engine's capability. This may be accomplished through the use of various algorithms.

    Abstract translation: 用于静液压变速器的速度控制系统包括具有连接到液压泵的驱动轴的发动机。 至少一个静液压马达通过流水线在闭合回路中连接到泵。 通过系统轴连接到电机是车辆系统。 控制器连接到多个传感器和连接到泵和电动机之间的流动管线的高压溢流阀。 根据从传感器接收到的信息，控制器设置泵和电机的位移，将压力限制在不超速发动机的值，并允许系统自动提供制动超出发动机的能力。 这可以通过使用各种算法来实现。

    Vehicle steering control systems and methods
    28.
    发明授权
    Vehicle steering control systems and methods 有权

    公开(公告)号：US11465605B2

    公开(公告)日：2022-10-11

    申请号：US16122094

    申请日：2018-09-05

    Applicant: Danfoss Power Solutions, Inc.

    Inventor： Caleb Van De Stroet

    IPC: B62D5/04 ,  B60W10/08 ,  B60W10/20

    Abstract: According to the present disclosure, a steering system and method for a machine includes a vehicle control system configured to command steering of the machine, and a steering sensor in communication with the vehicle control system. The steering sensor is configured to detect a position of a steering actuator of the machine. The vehicle control system is configured to detect an acceleration rate of the machine and to command steering of the machine based at least in part on the position of the steering actuator and the acceleration rate of the machine.

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