公开(公告)号：US09084388B2

公开(公告)日：2015-07-21

申请号：US13076643

申请日：2011-03-31

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： F15B11/16 ,  A01B63/10 ,  F15B13/02

CPC分类号： A01B63/1013 ,  F15B11/162 ,  F15B11/165 ,  F15B13/022 ,  F15B2211/20546 ,  F15B2211/253 ,  F15B2211/30535 ,  F15B2211/4053 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/71 ,  F15B2211/781

摘要： For controlling supply priorities, a hydraulic system includes several loads, a pump, and a tank. One load has a first-level supply priority, and optionally a second load has a second-level supply priority subordinate to the first level. A third load has a third-level supply priority subordinate to the second level. Each load can be connected to the pump by a separate supply line. The supply lines for the first and the optional second load are connected to the pump by a common load-pressure-controlled priority valve and the supply line for the third load is connected to the pump by an additional load-pressure-controlled priority valve. A first load-pressure line leading to the pump is connected to a load-pressure line of the third hydraulic load and to a second load-pressure line.

摘要翻译： 为了控制供应优先级，液压系统包括多个负载，泵和罐。 一个负载具有一级供应优先级，并且可选地，第二负载具有从属于第一级的二级供应优先级。 第三负载具有从属于第二级的第三级供应优先级。 每个负载可以通过单独的电源线连接到泵。 用于第一和第二可选择的第二负载的供应管线通过公共负载压力控制的优先阀连接到泵，并且用于第三负载的供应管线通过附加的负载压力控制的优先阀门连接到泵。 通向泵的第一负载压力线连接到第三液压负载的负载压力线和第二负载压力线。

公开(公告)号：US08352121B2

公开(公告)日：2013-01-08

申请号：US12779282

申请日：2010-05-13

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： G06F7/00

CPC分类号： A01B63/11

摘要： The invention relates to a hitch system for an agricultural vehicle for lifting and lowering a load or an attachment. The hitch system further includes a hydraulic system with a double-action hydraulic cylinder, and an electronic control unit connected to the hydraulic system for controlling the hydraulic system and the pressurization of the hydraulic cylinder. The control unit controls a contact pressure for a working device as a function of a sensed load on the axle.

摘要翻译： 本发明涉及一种用于提升和降低负载或附件的农用车辆的牵引系统。 牵引系统还包括具有双作用液压缸的液压系统和连接到液压系统的电子控制单元，用于控制液压系统和液压缸的加压。 控制单元根据轴上检测到的负载来控制作业装置的接触压力。

公开(公告)号：US20120043154A1

公开(公告)日：2012-02-23

申请号：US13213289

申请日：2011-08-19

申请人： Marcus Bitter ,  Wolfgang Reck ,  Mario Seebode ,  Ulrich Hoppe ,  Thilo Kazimiers ,  Josef Peters

发明人： Marcus Bitter ,  Wolfgang Reck ,  Mario Seebode ,  Ulrich Hoppe ,  Thilo Kazimiers ,  Josef Peters

IPC分类号： B62D5/06

CPC分类号： E02F9/2217 ,  B62D5/075 ,  E02F9/2232 ,  E02F9/225 ,  F15B1/024 ,  F15B11/162 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/40584 ,  F15B2211/62

摘要： A hydraulic system for a mobile working machine includes a hydraulic pump, a steering valve, a steering actuator controlled by the steering valve, a first hydraulic line which extends between the hydraulic pump and the steering valve, and a hydraulic storage unit which is connected with the first hydraulic line via a second hydraulic line). So as to optimize a pressure state for the hydraulic system, a throttle connected in parallel with a check valve is located in the second hydraulic line. The check valve permits one-way fluid flow in a direction away from the hydraulic storage unit.

摘要翻译： 一种用于移动式工作机械的液压系统，包括液压泵，转向阀，由转向阀控制的转向致动器，在液压泵和转向阀之间延伸的第一液压管路，以及液压存储单元，其与 通过第二液压管线的第一液压管路）。 为了优化液压系统的压力状态，与止回阀并联连接的节气门位于第二液压管路中。 止回阀允许单向流体沿远离液压存储单元的方向流动。

公开(公告)号：US07954317B2

公开(公告)日：2011-06-07

申请号：US11962279

申请日：2007-12-21

申请人： Marcus Bitter ,  Hendrik Nordhoff ,  Karsten Oberst

发明人： Marcus Bitter ,  Hendrik Nordhoff ,  Karsten Oberst

IPC分类号： F16D31/02

CPC分类号： F04B23/04 ,  F04B23/10

摘要： A hydraulic system for an agricultural vehicle is proposed. The hydraulic system comprises a main hydraulic circuit, which is fed with hydraulic fluid by a main hydraulic pump, a variable displacement charge pump which supplies charge pressure to the main hydraulic pump, and a lubricating hydraulic circuits. In order to keep efficiency losses on the vehicle to a minimum, particularly at high engine speeds, part of the hydraulic fluid delivered by the charge pump can be diverted to the lubricating hydraulic circuit.

摘要翻译： 提出了一种农用车液压系统。 液压系统包括主液压回路，其通过主液压泵供给液压流体，向主液压泵供给加压压力的可变容量电荷泵和润滑液压回路。 为了将车辆的效率损失降到最低，特别是在高发动机转速下，由电荷泵输送的部分液压油可以转移到润滑液压回路。

公开(公告)号：US07753385B2

公开(公告)日：2010-07-13

申请号：US11866757

申请日：2007-10-03

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： B60G11/30

CPC分类号： B60G17/056 ,  B60G17/005 ,  B60G21/073 ,  B60G2300/083 ,  B60G2400/60 ,  B60G2500/02 ,  B60G2800/012 ,  B60G2800/9124

摘要： A suspension system for an agricultural or construction industry vehicle is described. The suspension system comprises two hydraulic cylinders which support a frame in relation to an axle of the vehicle, the hydraulic cylinders being hydraulically connected to one another in a cross connection, so that a piston-side chamber of the one hydraulic cylinder is connected to the piston rod-side chamber of the other hydraulic cylinder and vice versa, in each case one hydraulic accumulator assigned to a hydraulic cylinder, a hydraulic source, a hydraulic tank, a control valve device, an electronic control unit, electrically switchable switch valves which are arranged in the cross connection between the hydraulic accumulators and the hydraulic cylinders, and a first and second supply line, which supply lines connect the control vale device to the cross connection. In order to prevent the activation of a suspension state in critical vehicle states, means for the detection and compensation of load states of the vehicle are provided in the suspension system.

摘要翻译： 描述了用于农业或建筑工业车辆的悬挂系统。 悬挂系统包括两个液压缸，其支撑相对于车辆的车轴的框架，液压缸在十字连接中彼此液压地连接，使得一个液压缸的活塞侧室连接到 另一个液压缸的活塞杆侧室，反之亦然，在每种情况下，一个分配给液压缸的液压蓄能器，液压源，液压油箱，控制阀装置，电子控制单元，电气可切换开关阀， 布置在液压蓄能器和液压缸之间的交叉连接中，以及第一和第二供应管线，供应管线将控制阀装置连接到交叉连接。 为了防止在关键车辆状态下的悬挂状态的激活，在悬架系统中提供用于检测和补偿车辆的负载状态的装置。

公开(公告)号：US20080088107A1

公开(公告)日：2008-04-17

申请号：US11866757

申请日：2007-10-03

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： B60G21/06

CPC分类号： B60G17/056 ,  B60G17/005 ,  B60G21/073 ,  B60G2300/083 ,  B60G2400/60 ,  B60G2500/02 ,  B60G2800/012 ,  B60G2800/9124

摘要： A suspension system for an agricultural or construction industry vehicle is described. The suspension system comprises two hydraulic cylinders which support a frame in relation to an axle of the vehicle, the hydraulic cylinders being hydraulically connected to one another in a cross connection, so that a piston-side chamber of the one hydraulic cylinder is connected to the piston rod-side chamber of the other hydraulic cylinder and vice versa, in each case one hydraulic accumulator assigned to a hydraulic cylinder, a hydraulic source, a hydraulic tank, a control valve device, an electronic control init, electrically switchable switch valves which are arranged in the cross connection between the hydraulic accumulators and the hydraulic cylinders, and a first and second supply line, which supply lines connect the control vale device to the cross connection. In order to prevent the activation of a suspension state in critical vehicle states, means for the detection and compensation of load states of the vehicle are provided in the suspension system.

摘要翻译： 描述了用于农业或建筑工业车辆的悬挂系统。 悬挂系统包括两个液压缸，其支撑相对于车辆的车轴的框架，液压缸在十字连接中彼此液压地连接，使得一个液压缸的活塞侧室连接到 另一个液压缸的活塞杆侧腔室，反之亦然，在每种情况下，一个分配给液压缸的液压蓄能器，液压源，液压油箱，控制阀装置，电子控制阀，电气可切换开关阀，它们是 布置在液压蓄能器和液压缸之间的交叉连接中，以及第一和第二供应管线，供应管线将控制阀装置连接到交叉连接。 为了防止在关键车辆状态下的悬挂状态的激活，在悬架系统中提供用于检测和补偿车辆的负载状态的装置。

公开(公告)号：US20080073155A1

公开(公告)日：2008-03-27

申请号：US11850910

申请日：2007-09-06

申请人： Marcus Bitter ,  Richard Tudor

发明人： Marcus Bitter ,  Richard Tudor

IPC分类号： B66F9/22

CPC分类号： B66F9/22 ,  B66F17/00 ,  E02F9/24 ,  F15B11/003 ,  F15B2211/50545

摘要： A loader includes a hydraulically operated extension arm, a load sensor for monitoring the load condition on the loader and a hydraulic arrangement for actuation of the extension arm and/or an implement attached to the extension arm. The hydraulic arrangement exhibits at least one hydraulic cylinder with one supply line on the piston rod side and one supply line on the piston side. At least one mechanically switchable control device is coupled between a source of fluid pressure and a hydraulic tank, on the one hand, and the supply lines on the other hand. An electronic control unit is connected for effecting operation of a restricting device coupled between the supply lines in response to a load signal received from the load sensor so as to achieve a slowed-down actuation of the hydraulic cylinder in conjunction with the on set of a critical load condition. Thus, a restriction of a volumetric flow is achieved in at least one of the supply line on the piston rod side or the supply line on the piston side of the hydraulic cylinder.

摘要翻译： 装载机包括液压操作的延伸臂，用于监测装载机上的负载状况的负载传感器和用于致动延伸臂的液压装置和/或附接到延伸臂的工具。 液压装置具有至少一个液压缸，活塞杆侧具有一个供应管线，在活塞侧具有一个供应管线。 至少一个可机械切换的控制装置一方面连接在流体压力源和液压箱之间，另一方面则连接在供应管线上。 电子控制单元被连接用于响应于从负载传感器接收到的负载信号而实现耦合在供电线路之间的限制装置的操作，以便与一组电动机的一组装置一起实现液压缸的减速致动 临界负载条件。 因此，在活塞杆侧的供给管线或液压缸的活塞侧的供给管路中的至少一方，能够实现体积流量的限制。

公开(公告)号：US07337610B2

公开(公告)日：2008-03-04

申请号：US11471137

申请日：2006-06-20

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： F15B11/02 ,  B66F9/00 ,  E02F9/00

CPC分类号： E02F9/2207 ,  F15B1/021 ,  F15B13/0433 ,  F15B21/008 ,  F15B2211/3111 ,  F15B2211/3144 ,  F15B2211/329 ,  F15B2211/7053

摘要： A hydraulic arrangement is provided for a spring support system. The hydraulic circuit arrangement includes a hydraulic cylinder, a hydraulic tank, a hydraulic conveying device, a hydraulic accumulator, a first selector valve arranged between the hydraulic accumulator and the hydraulic cylinder, a control implement with at least three switch positions, that include a lifting position, a lowering position and a neutral position for the hydraulic cylinder and a pipe break safety arrangement arranged between the control implement and the hydraulic cylinder. In order to permit the opening of the pipe break safety arrangement, a first control pressure line extends between the pipe break safety arrangement and a conveying device and first switching devices are arranged in the first control pressure line so that a control pressure can be applied to the first control pressure line by switching the first switching devices and the pipe break safety arrangement can be controlled to open.

摘要翻译： 为弹簧支撑系统提供液压装置。 液压回路装置包括液压缸，液压缸，液压输送装置，液压蓄能器，布置在液压蓄能器和液压缸之间的第一选择阀，具有至少三个开关位置的控制工具，其包括提升 位置，下降位置和液压缸的中立位置以及布置在控制工具和液压缸之间的管道断裂安全装置。 为了允许打开管道断裂安全装置，第一控制压力线在管道断裂安全装置和输送装置之间延伸，并且第一开关装置布置在第一控制压力管线中，使得可以将控制压力施加到 可以控制通过切换第一开关装置的第一控制压力线和断路安全布置来打开。

公开(公告)号：US07100371B2

公开(公告)日：2006-09-05

申请号：US10943043

申请日：2004-09-16

申请人： Marcus Bitter ,  Heinz Peter Huth ,  Michael Kühn ,  Reiner Hoffmann

发明人： Marcus Bitter ,  Heinz Peter Huth ,  Michael Kühn ,  Reiner Hoffmann

IPC分类号： F16D31/02

CPC分类号： F15B20/005 ,  E02F9/2203 ,  E02F9/2217 ,  E02F9/24 ,  F15B1/021 ,  F15B2211/625 ,  F15B2211/6313 ,  F15B2211/665 ,  F15B2211/8636

摘要： A hydraulic arrangement is provided with at least one pressure accumulator for a hydraulic fluid, a hydraulic cylinder with at least one chamber to which pressure can be applied, a connecting line, on the basis of which the at least one accumulator is connected with the chamber, and a control unit. In order to provide an electronic pipe break safety device, an electronically controlled on-off valve is mounted in the connecting line and coupled for receiving control signals from the control unit, and a signal transmitter, which is coupled for monitoring the pressure in the connecting line is also connected to the control unit. If a pressure drop occurs in the connecting line, a signal change is generated by means of the signal transmitter, whereupon the control unit sends a signal effecting movement of the shut-off valve to its closed position.

摘要翻译： 液压装置设置有用于液压流体的至少一个压力蓄能器，具有至少一个可以施加压力的室的液压缸，连接管路，基于该液压缸，该至少一个蓄能器与该室连通 ，以及控制单元。 为了提供一种电子断路安全装置，电子控制的开关阀被安装在连接线中并且被耦合用于接收来自控制单元的控制信号和一个信号发射器，它被耦合用于监视连接中的压力 线路也连接到控制单元。 如果在连接线路中出现压降，则通过信号发射器产生信号变化，于是控制单元发送一个信号，该信号使截止阀运动到其关闭位置。

公开(公告)号：US20060108185A1

公开(公告)日：2006-05-25

申请号：US11286737

申请日：2005-11-23

申请人： Marcus Bitter

发明人： Marcus Bitter

IPC分类号： B66D5/26

CPC分类号： F15B1/021 ,  B66F9/0655 ,  B66F9/22 ,  E02F9/2207 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/226 ,  E02F9/2292 ,  F15B11/0445 ,  F15B2211/50581 ,  F15B2211/625 ,  F15B2211/6336 ,  F15B2211/8616 ,  F15B2211/863

摘要： A hydraulic system for a suspension system is disclosed. The system has a hydraulic cylinder, a hydraulic tank, a conveying means, a hydraulic accumulator, a control device, a load holding device disposed between the hydraulic accumulator and the hydraulic cylinder, and an on-off valve disposed between the hydraulic accumulator and the control device. In order to provide a suspension function for the hydraulic cylinder while simultaneously ensuring safeguarding of the hydraulic cylinder and of the hydraulic accumulator against a pressure drop in the case of a tube break, the present invention provides a system that controls the on-off valve and the load holding device synchronously through a control pressure device, such that when the suspension function is activated the load holding device is opened and the on-off valve is closed.