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1. 发明授权

US09109586B2 Electro-hydraulic drive system for a work machine 有权
标题翻译：工作机电液驱动系统
公开(公告)号：US09109586B2
公开(公告)日：2015-08-18
申请号：US13816337
申请日：2011-07-13
申请人： Masahiro Yamada , Ryo Yamamoto , Yukito Imamura
发明人： Masahiro Yamada , Ryo Yamamoto , Yukito Imamura
IPC分类号： F16D31/02 , F01B21/04 , F04B17/03 , B60K6/20 , E02F9/12 , E02F9/20 , F03C1/06 , F03C1/40 , F03C1/26 , F04B49/00 , F15B21/14 , H02K7/00 , H02K7/18 , H02P3/14 , E02F9/22 , F16H61/4148 , F01C13/04
CPC分类号： F04B17/03 , B60K6/20 , B60W2300/17 , E02F9/123 , E02F9/2075 , E02F9/2095 , E02F9/2217 , E02F9/2296 , F01C13/04 , F03C1/0636 , F03C1/0678 , F03C1/26 , F04B49/002 , F15B21/14 , F15B2211/20515 , F15B2211/20523 , F15B2211/20546 , F15B2211/50527 , F15B2211/633 , F15B2211/6336 , F15B2211/88 , F16H61/4148 , H02K7/00 , H02K7/1807 , H02P3/14
摘要： An electro-hydraulic drive system for a work machine which drives an upper rotary body by controlling a flow rate of a hydraulic fluid by a control valve, includes an electro-hydraulic pump including a hydraulic pump driven by an engine, and a first electric motor, and an electro-hydraulic motor including a hydraulic motor rotated by the hydraulic oil supplied from the electro-hydraulic pump, and a second electric motor, and a controller which determines an operating state of the first electric motor and an operating state of the second electric motor based on a load of the electro-hydraulic pump and a load of the electro-hydraulic motor, and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power.
摘要翻译：一种用于通过控制由控制阀控制液压流体的流量来驱动上旋转体的工作机的电动液压驱动系统，包括电动液压泵，其包括由发动机驱动的液压泵和第一电动机以及包括由从电动液压泵供给的液压油旋转的液压马达的电动液压马达和第二电动机，以及确定第一电动机的运转状态的控制器和第二电动机的运转状态基于电动液压泵的负载的电动机和电动液压马达的负载，并且能够通过使用液压（流体压力）和电力进行有效的操作。

2. 发明授权

US5361584A Hydrostatic drive system 失效
标题翻译：静液压驱动系统
公开(公告)号：US5361584A
公开(公告)日：1994-11-08
申请号：US64485
申请日：1993-05-19
申请人： Alfred Langen , Wolfgang Kraft
发明人： Alfred Langen , Wolfgang Kraft
IPC分类号： F03C1/40 , F15B11/02 , F15B11/044 , F16H61/40 , F16H61/4148 , F16H61/4157 , F16H61/46 , F16D31/02
CPC分类号： F16H61/4157 , F15B11/044 , F15B11/0445 , F16H61/40 , F16H61/4148 , F16H61/461 , F15B2211/20538 , F15B2211/20553 , F15B2211/3057 , F15B2211/3111 , F15B2211/353 , F15B2211/6052 , F15B2211/613 , F15B2211/6355 , F15B2211/7058 , F15B2211/75
摘要： A hydrostatic drive system including a pump and a hydraulic motor in an open circuit which includes a feed line and a control valve in the feed line on the inflow side of the hydraulic motor to control the quantity of hydraulic pressure medium supplied to the hydraulic motor. A brake valve is located in the open circuit on the outflow side of the hydraulic motor to receive hydraulic pressure medium flowing out of the hydraulic motor. The control valve and the brake valve are constructed for independent actuation so that the functions of the control valve and the brake valve can be reversed when the direction of rotation of the hydraulic motor is reversed and the actuating pressure on the brake valve in the braking phase depends on the inflow pressure to the hydraulic motor independently of the actuating pressure on the control valve.
摘要翻译：一种液压驱动系统，包括泵和液压马达，所述液压马达包括在所述液压马达的流入侧的供给管线中的进料管线和控制阀，以控制供给到所述液压马达的液压介质的量。制动阀位于液压马达流出侧的开路中，以接收从液压马达流出的液压介质。控制阀和制动阀被构造为独立的动作，使得当液压马达的旋转方向与制动阶段的制动阀上的致动压力相反时，控制阀和制动阀的功能可以反转取决于液压马达的流入压力，而与控制阀上的致动压力无关。

3. 发明授权

US4520625A Hydraulic brake valve system 失效
标题翻译：液压制动阀系统
公开(公告)号：US4520625A
公开(公告)日：1985-06-04
申请号：US471341
申请日：1983-03-02
申请人： Hideyori Sato , Nobuaki Inaba , Mitsuru Arai , Michio Onzou
发明人： Hideyori Sato , Nobuaki Inaba , Mitsuru Arai , Michio Onzou
IPC分类号： F15B13/02 , F16H61/40 , F16H61/4148 , F16H61/4157 , F16D31/02
CPC分类号： F16H61/4157 , F15B13/02 , F16H61/40 , F16H61/4148
摘要： A hydraulic brake valve system for use in a hydraulic circuit consisting of driving and braking fluid lines and including therein at least a hydraulic motor for the actuation of an inertia body such as, for example, a construction vehicle or work implements thereof has a counterbalance valve, a cross-over safety valve, a drain change-over valve and a timer valve. The cross-over safety valve consists of two common relief valves, each having two pressure receiving surfaces and adapted to relieve pressurized fluid acted on one of the pressure receiving surfaces at a low pressure and relieve pressurized fluid acted on the other pressure receiving surface at a high pressure, wherein the first port of one of said relief valves is connected with said driving fluid line and the second port thereof is connected with said braking fluid line, whilst the first port of the other relief valve is connected with said braking fluid line and the second port thereof is connected with said driving fluid line.
摘要翻译：一种用于由驱动和制动流体管线组成的液压回路的液压制动阀系统，其中至少包括用于致动诸如施工车辆或其工具的惯性体的液压马达具有平衡阀，交叉安全阀，排水转换阀和定时阀。交叉安全阀由两个共同的安全阀组成，每个安全阀具有两个压力接收表面，并且适于在低压下减轻作用在压力接收表面之一上的加压流体，并且在一个压力接收表面上减轻作用在另一压力接收表面上的加压流体其中一个所述安全阀的第一端口与所述驱动流体管线连接，并且其第二端口与所述制动流体管线连接，而另一泄压阀的第一端口与所述制动流体管线相连接，其第二端口与所述驱动流体管线连接。

4. 发明授权

US4295539A Auxiliary drive system 失效
标题翻译：辅助驱动系统
公开(公告)号：US4295539A
公开(公告)日：1981-10-20
申请号：US100426
申请日：1979-12-05
申请人： Richard A. Beck , Glen T. Presley
发明人： Richard A. Beck , Glen T. Presley
IPC分类号： B60K17/356 , B60K25/00 , F16H61/4148 , F16H61/456 , F16H61/46 , F16H61/465 , B60K25/04
CPC分类号： F16H61/4148 , B60K17/356 , B60K25/00 , F16H61/456 , F16H61/465 , B60Y2200/221
摘要： A hydraulic auxiliary drive system for the normally non-driven wheels of a vehicle to assist the main wheels. The auxiliary drive comprises at least one variable displacement motor having a swash plate for driving at least one of the non-driven wheels, a variable displacement pressure compensated pump supplying the motor with a constant pressure regardless of vehicle speed, a spring for biasing each motor swash plate toward zero displacement, a servo connected to the motor swash plate for varying the displacement of the motor, and a pressure source for supplying the servo. A manually operated pressure control includes a solenoid-controlled variable orifice for controlling the pressure level supplied to the servo to vary the torque output of the normally non-driven wheels. A control valve is positioned between the pump and motor for disengaging and reversing the auxiliary drive. Another embodiment includes a second servo connected to the motor swash plate for decreasing the motor displacement. A pressure operated valve is located in a sensing passage connecting the pump outlet with the second servo and has a first position blocking pump pressure to the servo at all levels above the pressure compensating level of the pump, and a second position opening pump pressure to the second servo at a preset pressure level below the compensating level whereby when the pump reaches full stroke and is unable to maintain its compensating level, the valve opens causing the motor displacement to decrease.
摘要翻译：一种用于车辆的正常非从动轮的液压辅助驱动系统，用于辅助主轮。辅助驱动器包括至少一个可变排量马达，其具有用于驱动非从动轮中的至少一个的斜盘;可变排量压力补偿泵，无论车速如何，都向马达提供恒定的压力;弹簧，用于偏置每个马达斜盘朝向零位移，伺服连接到马达斜盘以改变马达的位移，以及用于供应伺服的压力源。手动操作的压力控制包括电磁控制的可变孔口，用于控制提供给伺服器的压力水平以改变正常非从动轮的扭矩输出。控制阀位于泵和马达之间，用于分离和反向辅助驱动。另一实施例包括连接到马达斜盘的第二伺服器，用于减小马达位移。压力操作阀位于连接泵出口与第二伺服器的感测通道中，并且具有在泵的压力补偿水平以上的所有水平处阻止泵送到伺服机构的泵压力的第一位置，以及第二位置打开泵压力第二伺服在低于补偿水平的预设压力水平，由此当泵达到全行程并且不能保持其补偿水平时，阀打开，导致电动机位移减小。

5. 发明授权

US3874173A Hydrostatic power transmission system 失效
标题翻译：静液压输电系统
公开(公告)号：US3874173A
公开(公告)日：1975-04-01
申请号：US36666973
申请日：1973-06-04
申请人： WILKINS BERNARD CHARLES
发明人： WILKINS BERNARD CHARLES
IPC分类号： F16H61/4096 , F16H61/4148 , F16H61/423 , F16H61/456 , F16H61/46 , F15B18/00
CPC分类号： F16H61/4148 , F16H61/4096 , F16H61/423 , F16H61/456 , F16H61/46
摘要： A hydrostatic power transmission system with co-ordinated control of prime mover and pump, supplying any number of rotary and linear hydrostatic motors controlled integrally and by power transformers respectively.
摘要翻译：一种具有原动机和泵的协调控制的静液压动力传动系统，分别供应任意数量的一体式控制和电力变压器的旋转和线性静液压马达。

6. 发明授权

US3835647A Multiple speed hydraulic drive circuit 失效
标题翻译：多速液压驱动电路
公开(公告)号：US3835647A
公开(公告)日：1974-09-17
申请号：US22134372
申请日：1972-01-27
申请人： GEN SIGNAL CORP
发明人： HUFFMAN T
IPC分类号： E02F3/85 , F15B11/042 , F15B11/08 , F15B13/042 , F16H61/4148 , F16H61/44 , F16H61/444 , F15B15/18
CPC分类号： F16H61/4148 , F15B11/0426 , F15B13/0422 , F15B2211/20584 , F15B2211/255 , F15B2211/30505 , F15B2211/30525 , F15B2211/3111 , F15B2211/329 , F15B2211/50527 , F15B2211/50536 , F15B2211/5151 , F15B2211/5154 , F15B2211/7058 , F16H61/44 , F16H61/444
摘要： THE DISCLOSURE CONCERNS A HYDRAULIC POWER CIRCUIT PARTICULARLY SUITED FOR USE IN DRIVING THE ELEVATOR OF AN EARTH-MOVING SCRAPER, AND WHICH AFFORDS THREE DRIVING SPEEDS IN THE FORWARD DIRECTION AND ONE DRIVING SPEED IN REVERSE. THE CIRCUIT PREFERABLY EMPLOYS TWO FIXED DISPLACEMENT PUMPS OF DIFFERENT CAPACITIES, AND A PAIR OF PILOT OPERATED CONTROL VALVES WHICH SELECTIVELY CAUSE THE OUTPUT OF EITHER OR BOTH PUMPS TO BE DELIVERED TO THE DRIVE MOTOR. THE CONTROL VALVES ARE SO ARRANGED THAT THEY MAY BE INCORPORATED IN A SINGLE, CONVENTIONAL VALVE BODY, AND THAT NEITHER HAS TO BE SIZED TO HANDLE THE COMBINED OUTPUTS OF BOTH PUMPS.

7. 发明授权

US12025219B2 Hydrostatic traction drive in an open circuit 有权
公开(公告)号：US12025219B2
公开(公告)日：2024-07-02
申请号：US17810181
申请日：2022-06-30
申请人： Robert Bosch GmbH
发明人： Peter Schmuttermair , Salih Tetik
IPC分类号： F16H61/4148 , F16H61/4017 , F16H61/4157 , F16H61/431
CPC分类号： F16H61/4148 , F16H61/4017 , F16H61/4157 , F16H61/431
摘要： A hydrostatic traction drive includes a hydrostatic pump and a hydrostatic motor connected to each other in an open circuit. One of the pump and motor is pressure-regulated while the other is torque-controlled or regulated in terms of pivot angle. A braking mode is therefore possible in which the secondary-side braking torque can be adapted to the permissible primary-side supporting torque of a primary machine coupled to the pump. To further increase the braking power, even in a high rotational phase of the primary machine, the permissible drag torque thereof can be temporarily exceeded. To further increase the braking power and therefore to have high-performance braking during operation, further means for converting energy can be provided in order to adjust a secondary-side braking torque and a primary-side supporting torque independently of each other.

8. 发明申请

US20210116020A1 Hydrostatic Assembly 有权
公开(公告)号：US20210116020A1
公开(公告)日：2021-04-22
申请号：US17069348
申请日：2020-10-13
申请人： Robert Bosch GmbH
发明人： Ralf Schueler
IPC分类号： F16H61/4192 , F16H61/4148
摘要： A hydrostatic assembly includes a pressure medium with a variable viscosity and a control device through which at least one process variable or state variable of the hydrostatic assembly is open-loop or closed-loop controlled as a function of the viscosity. The hydrostatic assembly further includes a temperature sensing device configured to sense a temperature of the pressure medium.

9. 发明授权

US10704685B2 Hydraulic-assistance system for open-circuit motor vehicles 有权
公开(公告)号：US10704685B2
公开(公告)日：2020-07-07
申请号：US15571470
申请日：2016-05-04
申请人： Poclain Hydraulics Industrie
发明人： Andre Prigent , Cyrille D'Hersignerie
IPC分类号： F16H61/4148 , B60K23/08 , F16H61/4078 , F16H61/423 , B60K7/00 , B60K17/10 , B60K17/356
摘要： The present invention relates to a hydraulic-assistance system for motor vehicles, comprising a primary motor (M) and two hydraulic machines (140; 240, 250) connected by a hydraulic circuit such that when a first hydraulic machine (140) operates as a pump, the second hydraulic machine (240, 250) operates as a motor. The invention is characterized in that the hydraulic circuit connecting the two machines (140; 240, 250) is an open circuit passing through a tank (300), the hydraulic machine (240, 250) operating as a motor is a declutchable machine, and the hydraulic machine (140) operating as a pump is a pump in which the variable displacement is controlled by a device comprising a proportional pressure limiter (470) placed between a drain line (143) and the discharge line of the hydraulic machine (140) operating as a pump, and enabling the assistance pressure to be set, and at least one collection nozzle (460) placed between the proportional pressure limiter (470) and the discharge line of the hydraulic machine (140), the setpoint pressure controlling the hydraulic machine (140) operating as a pump being collected between the pressure limiter (470) and the collection nozzle (460).

10. 发明申请

US20180163838A1 POWERTRAIN SYSTEM WITH VARIATOR SPEED BALANCING 审中-公开
公开(公告)号：US20180163838A1
公开(公告)日：2018-06-14
申请号：US15375340
申请日：2016-12-12
申请人： Caterpillar Inc.
发明人： Xinyu Ge
IPC分类号： F16H47/04 , F16H61/4148 , F16H61/4035
CPC分类号： F16H47/04 , F16H61/4035 , F16H61/4148 , F16H2047/045
摘要： A powertrain system for a machine includes a hydraulic variator assembly coupled with a mechanical transmission, and a speed balancing system including a hydraulic accumulator, and being configured to limit a speed balancing error between first and second variators in the variator assembly by commanding adjustment of a valve mechanism to fluidly connect a hydraulic accumulator with one of the variators to increase a fluid flow rate therethrough. The hydraulic accumulator can be charged by way of an implement system in a machine driven by way of the powertrain system.

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