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公开(公告)号：US20200182294A1
公开(公告)日：2020-06-11
申请号：US16705972
申请日：2019-12-06
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Charlie Dvorak , Wondimagegn Diress , Pavol Balco , Jeffrey C. Hansell
Abstract: A bearing attachment system for a pump product having a seal carrier and a cover plate. The attachment system is configured to produce a force deflection curve that provides a clamping force on a pair of tapered roller bearings such that a tight bearing endplay on the tapered roller bearings is maintained through a full range of manufacturing tolerances. The geometric shape of the cover plate and the top surface of the seal carrier provide the desired deflection characteristics.
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公开(公告)号：US10510501B2
公开(公告)日：2019-12-17
申请号：US15491344
申请日：2017-04-19
Applicant: Danfoss Power Solutions, Inc.
Inventor： Joseph John Kubes
Abstract: According to the present disclosure, a controller includes a base and a continuous sealing layer connected to the base forming an environmentally sealed compartment between the base and a lower surface of the continuous sealing layer. A circuit board is positioned within the compartment, and a rotary knob encoder is positioned on an upper surface of the continuous sealing layer. Movement of the rotary knob encoder is detectable by the circuit board through the continuous sealing layer.
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公开(公告)号：US20190323490A1
公开(公告)日：2019-10-24
申请号：US15961306
申请日：2018-04-24
Applicant: Danfoss Power Solutions Inc.
Inventor： Joshua Cronbaugh
Abstract: The present invention relates to a pumping assembly that has a first pump and a second pump connected to an end cap, which the connection is in a back-to-back configuration in some arrangements. The end cap, which can be centrally located, has a core that is in liquid communication with a first and second port on the end cap by way of a conduit. The conduit combines the flow of the first pump and the second pump at the core, which then exits the assembly by way of at least one of the ports.
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公开(公告)号：US10385880B2
公开(公告)日：2019-08-20
申请号：US15481731
申请日：2017-04-07
Applicant: Danfoss Power Solutions, Inc.
Inventor： Stephen Frantz
IPC: F15B13/02 , F04B49/00 , F03C1/06 , F03C1/40 , F16H61/46 , F15B11/04 , B60T13/24 , F16H61/423 , F16H61/47
Abstract: A hydraulic unit includes a driving mechanism whose displacement volume is adjustable to two operational states by means of a position-able adjustment element. The adjustment element can be positioned by a servo piston of a servo unit into a first, initial position and a second, operative position. A first front face and a second front face of the servo piston, which are opposing each other, can be pressurized individually with pressurized hydraulic fluid in order to position the servo piston at either end position of a servo cylinder of the servo unit. The servo piston is of a stepped design thereby forming a ring-shaped damping surface opposing the first front face. In the servo cylinder a ring-shaped shoulder surface is formed opposing the damping surface such that a damping volume is formed in the servo cylinder by the damping surface, the shoulder surface and the servo cylinder.
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公开(公告)号：US09759212B2
公开(公告)日：2017-09-12
申请号：US14944321
申请日：2015-11-18
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Kevin R. Lingenfelter , Alex Bruns , Christian Daley , Vince Ewald , Danny Wakefield
CPC classification number: F04B49/22 , F04B1/324 , F04B49/065 , F04B49/08 , F04B2201/0204
Abstract: An electrical pressure control load sense system having a pump connected inline to an operator control spool valve and a compensation circuit. The system also has a plurality of sensors, at least one pressure transducer, a micro-processor, a fixed orifice, a proportional pressure relief valve, and a swashplate angle sensor.
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Patent Agency Ranking
公开(公告)号：US09533670B2
公开(公告)日：2017-01-03
申请号：US14456232
申请日：2014-08-11
Applicant: Danfoss Power Solutions Inc.
Inventor： Torsten Kohmaescher
IPC: B60W10/04 , B60W10/10 , F16H47/02 , B60W10/103 , B60W10/111 , F16H61/421 , F16H61/444 , F16H61/47
CPC classification number: B60W10/04 , B60W10/10 , B60W10/103 , B60W10/111 , B60Y2300/73 , F16H47/02 , F16H61/421 , F16H61/444 , F16H61/47 , F16H2047/025 , Y10T477/631
Abstract: Method for engaging and disengaging a hydraulic motor which is adjustable in its displacement from and to a hydrostatic drive train of a hydromechanical transmission with a closed hydraulic fluid circuit. Two adjustable hydraulic motors and a hydraulic pump are arranged in parallel in the hydrostatic drive train and connected to a mechanical drive on the output side. At least one of the two hydraulic motors is connected to the mechanical drive via an assigned clutch. As appropriate to the driving situation, during operation of the other hydraulic motor and the hydraulic pump at least one of the hydraulic motors is engaged via the assigned clutch with the hydromechanical transmission from which the hydraulic motor was previously disengaged, likewise as appropriate to the driving situation. Before closing the clutch, the hydraulic motor to be engaged is accelerated load-free by deflecting its adjustment device in such a way that the rotational speed of an assigned clutch input shaft of the clutch is at least equal to the rotational speed of the clutch output shaft of the clutch which is connected to the mechanical gear. When the clutch is closed, both hydraulic motors act on a common output shaft of the mechanical gear.
Abstract translation: 用于使液压马达接合和分离的方法，该液压马达与其具有闭合的液压流体回路的液压机械变速器的静液压驱动系统的位移可调。 两个可调节的液压马达和一个液压泵并联设置在静液压传动系中，并连接到输出侧的机械传动装置。 两个液压马达中的至少一个通过分配的离合器连接到机械驱动器。 根据驾驶情况，在其他液压马达和液压泵的操作期间，至少一个液压马达通过分配的离合器与液压马达预先脱离的液压机械变速器接合，同样适合于驾驶 情况。 在关闭离合器之前，待接合的液压马达通过使其调节装置偏转而使其无负载地加速，使得离合器的分配离合器输入轴的转速至少等于离合器输出的转速 离合器的轴连接到机械齿轮。 当离合器关闭时，两个液压马达都作用在机械齿轮的公共输出轴上。
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公开(公告)号：US09512918B2
公开(公告)日：2016-12-06
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: F16H61/4017 , F16H61/48 , F16H61/4157
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。
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公开(公告)号：US09512917B2
公开(公告)日：2016-12-06
申请号：US14302115
申请日：2014-06-11
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Frank J. Rozycki , Simon L. Nielsen , Gary R. LaFayette
IPC: F16H61/4008 , F16H61/4157 , F16H61/42 , F16H61/4017 , F16H61/423 , F16H61/433 , F16H61/421
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 proportional 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 pressure relief valve to limit the pressure to a valve that will not over-speed the engine and allows the demands of the speed control system to be attained. 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比例高压溢流阀。 根据从传感器接收的信息，控制器设置减压阀，以将压力限制在不会超速发动机的阀门上，并允许实现速度控制系统的要求。 这可以通过使用各种算法来实现。
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公开(公告)号：US20140352525A1
公开(公告)日：2014-12-04
申请号：US14284806
申请日：2014-05-22
Applicant: DANFOSS POWER SOLUTIONS INC.
Inventor： Harry Rasch
IPC: F04B27/22
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.
Abstract translation: 支撑弯曲轴或斜盘设计的无壳液压轴向活塞机的安装结构，其具有封闭板，其上布置有置换活塞的气缸体单元被支撑在其上，并且具有驱动轴或从动轴。 这里的安装结构是以篮子的方式设计的，并且具有用于驱动轴或从动轴的容座以及至少两个支柱，每个支柱的一端分别连接到容器，另一端连接到封闭板上 封闭板，气缸体单元和驱动轴或从动轴的类似于在壳体中保持在功能就绪位置的方式。
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公开(公告)号：US12188467B2
公开(公告)日：2025-01-07
申请号：US18000782
申请日：2021-06-09
Applicant: Danfoss Power Solutions Inc.
Inventor： Aaron Darnell , Zhekang Du , Simon Nielsen
Abstract: A hydraulic control system for linear actuation that includes an electric motor connected to a hydraulic pump and a hydraulic cylinder connected to the pump by a first flow line. A pressure transducer, a pressure control valve, and a check valve are connected to the first flow line between the pump and the cylinder and a tank is connected to the pump by a second flow line and the cylinder by a return line. A control valve is connected between the first flow line and the return line.
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