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1. 发明授权

US5503534A Automotive drive control for hydrostatic transmission 失效
标题翻译：用于静液压传动的汽车驱动控制
公开(公告)号：US5503534A
公开(公告)日：1996-04-02
申请号：US405130
申请日：1995-03-16
申请人： Karl-Thomas Rhody
发明人： Karl-Thomas Rhody
IPC分类号： F04B49/08 , F16H61/42 , F16H61/433 , F16H61/438 , F16H61/46 , F16H61/465 , F04B1/26
CPC分类号： F16H61/465 , F04B49/08 , F16H61/433 , F16H61/438 , F16H61/46 , F04B2205/062 , F04B2207/0441 , F16H2059/366
摘要： A control (27)is disclosed which may be used as an automotive drive control for a variable displacement hydrostatic pump (11). The pump displacement is controlled by servos (37, 39) by control pressure from a charge pump (21). As a pedal (P) of a vehicle engine (E) is depressed, an increasing pressure differential across a fixed orifice (79) moves a control spool (73) to port control fluid to a first servo port (A). If engine speed becomes excessive, or in response to an external pressure signal (121) representing another vehicle condition, the control spool (73) is moved to a position (FIG. 5 )in which control pressure is ported to a second servo port (B), thus positively reducing the displacement of the pump (11).
摘要翻译：公开了可用作可变排量静液压泵（11）的汽车驱动控制的控制器（27）。泵的位移由来自电荷泵（21）的控制压力由伺服（37,39）控制。当车辆发动机（E）的踏板（P）被压下时，跨越固定孔（79）的增加的压力差将控制阀芯（73）移动到端口控制流体到第一伺服端口（A）。如果发动机转速过大或响应于表示其他车辆状态的外部压力信号（121），则控制阀芯73移动到控制压力被移动到第二伺服端口的位置（图5） B），从而积极地减小泵（11）的位移。

2. 发明授权

US06557332B2 Control valve for switching a hydraulic piston-cylinder unit for purposes of driving an oscillatory machine part 失效
标题翻译：用于切换液压活塞 - 气缸单元的控制阀，用于驱动振荡机械部件
公开(公告)号：US06557332B2
公开(公告)日：2003-05-06
申请号：US09854341
申请日：2001-08-30
申请人： Karl-Thomas Rhody
发明人： Karl-Thomas Rhody
IPC分类号： A01D6903
CPC分类号： A01D34/38 , Y10S56/11
摘要： A self-propelled combine harvester having a mechanically actuated directional control valve for a hydraulic piston-cylinder unit used for driving the cutter bar in an oscillatory manner. A switching bracket is used to axially move the mechanically actuated directional control valve from a first end position to a second end position and from the second end position to the first end position. A latch is used to periodically latch a piston valve stationary. A first plunger and second plunger are alternatively and axially moved by a first spring and second spring. The first plunger and the second plunger alternatively move the valve piston from the first end position and the second position and from the second position to the first position. The valve piston will be released from the first end position or the second end position one end position from which it was arrested or latched. The switching between the first end position and the second end position and from the second end position is thereby alternatively accomplished. This process of switching-over the valve piston will not be interrupted if there is a sudden decrease in pressure because the process is effected by the biased springs.
摘要翻译：一种自推式联合收割机，具有用于以振荡方式驱动切割杆的用于液压活塞缸单元的机械致动的方向控制阀。切换支架用于将机械致动的方向控制阀从第一端部位置轴向移动到第二端部位置并且从第二端部位置移动到第一端部位置。锁定器用于周期性地锁定活塞阀静止。第一柱塞和第二柱塞通过第一弹簧和第二弹簧交替地和轴向移动。第一柱塞和第二柱塞将阀活塞从第一端部位置和第二位置以及从第二位置交替地移动到第一位置。阀活塞将从第一端部位置或第二端部位置释放，从该位置被锁定或锁定的一个端部位置。从而交替地实现了第一端部位置和第二端部位置之间的切换以及从第二端部位置的切换。如果压力突然下降，则该阀门活塞的切换过程将不会中断，因为该过程是由偏压弹簧实现的。

3. 发明授权

US06516595B2 Harvesting machine having an obstacle sensing device 失效
标题翻译：具有障碍物检测装置的收获机
公开(公告)号：US06516595B2
公开(公告)日：2003-02-11
申请号：US09725545
申请日：2000-11-29
申请人： Karl-Thomas Rhody , Helmut Franke
发明人： Karl-Thomas Rhody , Helmut Franke
IPC分类号： A01D4114
CPC分类号： A01D41/145 , A01B63/1145 , A01D41/141 , Y10S56/10
摘要： A harvesting machine with a front-mounted harvesting attachment that is pivotable about a shaft running transversely to the direction of travel comprising and capable of lifting when an obstacle is detected that includes a sensing device with at least one double-acting hydraulic piston and cylinder unit, having a first cylinder chamber and a second cylinder chamber, arranged on the harvesting attachment, a control valve associated with the sensing device in such a way that when the sensing device is not operated, the first cylinder chamber is in fluid communication with the second cylinder chamber by a control valve and when the sensing device is operated, fluid communication between the first cylinder chamber and the second cylinder chamber is interrupted by the control valve.
摘要翻译：一种具有前置收集附件的收获机，其可绕横向于行进方向运动的轴线枢转，包括并且当检测到障碍物时能提升障碍物，该障碍物包括具有至少一个双作用液压活塞和气缸单元的传感装置，具有布置在所述收获附件上的第一气缸室和第二气缸室，与所述感测装置相关联的控制阀，使得当所述传感装置未被操作时，所述第一气缸室与所述第二气缸室流体连通并且当感测装置操作时，第一气缸室和第二气缸室之间的流体连通被控制阀中断。

4. 发明授权

US6026840A Hydraulic control system 失效
标题翻译：液压控制系统
公开(公告)号：US6026840A
公开(公告)日：2000-02-22
申请号：US112845
申请日：1998-07-10
申请人： Helmut Franke , Karl-Thomas Rhody
发明人： Helmut Franke , Karl-Thomas Rhody
IPC分类号： F16D48/02 , G05D11/03
CPC分类号： F16D48/02 , F16D25/14 , F16D2048/0209 , Y10T137/2587 , Y10T137/87265
摘要： A hydraulic control system for connecting elements, which is particularly applicable for an externally engaged clutch on an engine, comprises a pump for producing an oil stream, a distributing valve for determining the flow path of the oil stream, a throttle serving as a metering orifice and inserted in a flow path causing a pressure gradient in the oil stream, a regulating valve connected by supply and return pipes to the flow path of the first throttle upstream and downstream of the throttle, which has a regulating piston acted upon by the higher oil pressure and displaceable against a spring force, a control groove provided on the regulating piston which operates by a ring groove arranged between the piston chamber and the regulating valve with clutch pipe and tank pipes, a second throttle serving as a time orifice and inserted in an output pipe proceeding from the end region of a spring chamber towards the return pipe and adjustable to the closing time of the clutch and a pressure relief output which proceeds from the spring chamber at a distance in front of the output pipe, is connected to the return pipe and can be shut off by the regulating piston on a short stroke.
摘要翻译：用于连接元件的液压控制系统，其特别适用于发动机上的外接离合器，包括用于产生油流的泵，用于确定油流的流路的分配阀，用作计量孔的节流阀并且插入在油流中引起压力梯度的流路中，调节阀通过供给和返回管连接到节气门上游和下游的第一节气门的流动路径，该调节阀具有由较高油作用的调节活塞压力可以抵抗弹簧力移动;控制槽，设置在调节活塞上，该调节活塞由设置在活塞室和调节阀之间的环槽用离合器管和罐管操作，第二节流阀作为时间孔插入输出管从弹簧室的端部区域朝着返回管延伸并且可调节到离合器的关闭时间和压力从输出管前方一段距离的弹簧室进行的溢流输出与回流管连接，能够通过调节活塞在短时间内被切断。

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