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21. 发明授权

US4190130A Dual steering system for off-highway vehicles 失效
标题翻译：双向转向系统用于非公路车辆
公开(公告)号：US4190130A
公开(公告)日：1980-02-26
申请号：US941023
申请日：1978-09-11
申请人： Earl Beck
发明人： Earl Beck
IPC分类号： B62D5/32 , B62D5/06
CPC分类号： B62D5/32
摘要： A dual vehicular steering system with a primary system for normal operation and a secondary system for emergency operation triggered by pressure sensitive switching and valving means. Both systems have in common a pair of single rod hydraulic steering cylinders with each cylinder being connected to a steerable wheel of the vehicle, a vehicular engine and hydraulic fluid stored in a tank. Cylinder shuttle valves connected to each steering cylinder function as gate devices to separate the primary steering system from the secondary system. The primary system includes a main pump driven by the engine, a high pressure filter, a priority flow divider to divert fluid in excess of an acceptable flow level, a control valve, an integrated valve package to proportionately regulate fluid flow between the cylinders, and means to direct fluid from the tank to the pump, through the filter, through the priority flow divider, through the control valve, through the integrated valve package and to the steering cylinders. The secondary system includes a secondary pump, an electric motor driven by the battery to drive the secondary pump, and means to conduct fluid from the secondary pump, through the switching and valving means and to the steering cylinders. The secondary system also includes an accumulator, pressure sensitive switching and valving means to conduct fluid from the secondary pump to the accumulator, and means to conduct fluid from the accumulator to the steering cylinders. Steering in the secondary system is accomplished by applying equal pressure to both ends of each steering cylinder thereby locking the cylinders in a single mode and by selectively draining fluid from selected ends of the steering cylinders. Operator controlled secondary steering switch and valve means operate the selective drain means.
摘要翻译：具有用于正常操作的主要系统的双车辆转向系统和由压力敏感切换和阀门装置触发的用于紧急操作的二次系统。两个系统具有共同的一对单杆液压转向缸，每个气缸连接到车辆的可转向轮，车辆发动机和存储在箱中的液压流体。连接到每个转向油缸的气缸梭阀用作闸门装置，以将主转向系统与次级系统分离。主系统包括由发动机驱动的主泵，高压过滤器，用于转移超过可接受流量的流体的优先分流器，控制阀，集成阀组件，以成比例地调节气缸之间的流体流动，以及将液体从罐中引导到泵，通过过滤器，通过优先分流器，通过控制阀，通过集成的阀组件和转向油缸。二次系统包括二次泵，由电池驱动的用于驱动次级泵的电动马达，以及用于将来自次级泵的流体通过切换和阀门装置以及转向缸导入的装置。次级系统还包括蓄能器，压力敏感开关和阀装置，用于将流体从次级泵传导到蓄能器，以及将流体从蓄能器传导到转向缸的装置。在二次系统中的转向是通过对每个转向缸的两端施加相等的压力来实现的，从而将气缸锁定在单一模式中，并且通过选择性地从转向油缸的选定端排出流体。操作员控制的二次转向开关和阀装置操作选择性排水装置。

22. 发明授权

US4136753A Vehicle power steering system 失效
标题翻译：车辆动力转向系统
公开(公告)号：US4136753A
公开(公告)日：1979-01-30
申请号：US767827
申请日：1977-02-11
申请人： Stephen F. Merkel
发明人： Stephen F. Merkel
IPC分类号： B62D5/32 , B62D5/08
CPC分类号： B62D5/32
摘要： A vehicle power steering system which effects steering with a pair of fluid actuated cylinders, one cylinder being operatively connected to each steerable wheel. Each cylinder is normally powered independently of the other cylinder so that both cylinders steer the vehicle. A pressurized fluid flow from a single source is divided for parallel flow along companion fluid flow paths to the indivdual cylinders. In response to a pre-determined pressure decrease sensed in one of those fluid flow paths a pressure responsive fluid diverter automatically diverts fluid flow from the reduced pressure flow path to the companion path so that all pressurized fluid in the system is then utilized to power one of the cylinders.
摘要翻译：一种车辆动力转向系统，其利用一对流体致动缸来实现转向，一个汽缸可操作地连接到每个可转向车轮。每个气缸通常独立于另一个气缸供电，以便两个气缸转向车辆。来自单个源的加压流体流被分配用于沿着伴随的流体流动路径的平行流到不同的气缸。响应于在这些流体流动路径之一中感测到的预定压力降低，压力响应流体分流器自动地将流体从减压流动路径转移到伴随路径，使得系统中的所有加压流体随后用于为一个的气瓶。

23. 发明授权

US4068477A Device for controlling accessories driven by the engine of a vehicle having an assisted steering 失效
标题翻译：用于控制由具有辅助转向的车辆的发动机驱动的附件的装置
公开(公告)号：US4068477A
公开(公告)日：1978-01-17
申请号：US772570
申请日：1977-02-28
申请人： Pascal Lefebvre
发明人： Pascal Lefebvre
IPC分类号： B60K25/00 , B62D5/32 , F01B21/00 , F04B49/08
CPC分类号： B62D5/32 , B60K25/00 , Y10S60/911
摘要： The device controls at least one accessory which operates in an intermittent manner and is driven through a connection by the engine of the vehicle. The latter has a hydraulic steering assistance supplied with fluid under pressure through a delivery pipe by a pump which is driven by the engine through an electromagnetic clutch. A fluid pressure-switch is connected in the electric circuit of the clutch and inserted in the delivery pipe and cuts off the aforementioned connection when the delivery pressure of the pump reaches a predetermined threshold value.
摘要翻译：该装置控制至少一个以间歇方式操作的附件，并通过车辆的发动机的连接被驱动。后者具有液压转向辅助装置，其通过泵通过输送管被供应流体，该泵由发动机通过电磁离合器驱动。流体压力开关连接在离合器的电路中并插入输送管中，并且当泵的输送压力达到预定阈值时切断上述连接。

24. 发明授权

US4065921A Hydraulic control means, particularly for vehicle steering means 失效
标题翻译：液压控制装置，特别是车辆转向装置
公开(公告)号：US4065921A
公开(公告)日：1978-01-03
申请号：US744624
申请日：1976-11-24
申请人： Johannes Vagn Baatrup , Thorkild Christensen
发明人： Johannes Vagn Baatrup , Thorkild Christensen
IPC分类号： B62D5/09 , B62D5/093 , B62D5/32 , F15B11/17 , F15B15/18
CPC分类号： F15B11/17 , B62D5/09 , B62D5/093 , B62D5/32 , F15B2211/20584 , F15B2211/329 , F15B2211/353 , F15B2211/50527 , F15B2211/50563 , F15B2211/5152 , F15B2211/6355 , F15B2211/67 , F15B2211/7142
摘要： The invention relates to a hydraulic control unit for a servomotor of the type used for vehicle steering systems. The unit has a control circuit with a power operated pump and a hand operated metering motor and an operating circuit with a power operated pump. The two circuits intersect upstream from the servomotor. A pressure comparison, throttling and proportioning valve is disposed between the outlets of the two pumps of the control and operating circuits. The proportioning valve is controlled by a differential pressure applied by the pumps and a spring which supplements the operating pump pressure. In the normal operating mode the proportioning valve allows a minor fractional flow of the pressurized fluid generated by the control pump to flow through the valve to the operating circuit. Under varying conditions when either of the pumps become wholly or partially inoperative the proportioning valve provides for an increased flow from the unaffected circuit to the disabled circuit to maintain a degree of operation until such time that the breakdown has been cured.
摘要翻译：本发明涉及一种用于车辆转向系统的用于伺服电机的液压控制单元。该单元具有带动力泵和手动计量电动机的控制电路以及具有动力操作泵的操作电路。两个回路从伺服电机的上游相交。压力比较，节流和配比阀设置在控制和操作电路的两个泵的出口之间。比例阀由泵施加的压差和补充操作泵压力的弹簧控制。在正常操作模式下，比例阀允许由控制泵产生的加压流体的小的分数流通过阀流到操作回路。在不同的条件下，当任一个泵完全或部分地不起作用时，比例阀提供从未受影响的电路到禁用电路的增加的流量，以保持一定程度的操作，直到击穿已经固化。

25. 发明授权

US3995711A Vehicle power steering electro-hydraulic safety backup system 失效
标题翻译：车辆动力转向电液安全备用系统
公开(公告)号：US3995711A
公开(公告)日：1976-12-07
申请号：US668224
申请日：1976-03-18
申请人： Carl Edwin Kittle , Gordon K. Wiegardt
发明人： Carl Edwin Kittle , Gordon K. Wiegardt
IPC分类号： B62D5/32 , B62D5/06
CPC分类号： B62D5/32
摘要： Disclosed is a vehicle power steering system including an electro-hydraulic safety backup system for supplying pressurized fluid to the steering motor of the vehicle when the pressure between the main pump and the power steering system drops below a predetermined pressure level. The safety backup system includes an electrical circuit which is added on to the ignition and starting circuits of a vehicle such that the backup system will not operate in response to intermittent short duration pressure drops. The electrical circuit includes an arming feature to prevent the backup system from operating during initial start-up of the vehicle and further provides for operation of the vehicle's starting motor to have priority over the backup system operation.
摘要翻译：公开了一种车辆动力转向系统，其包括电动液压安全备用系统，用于当主泵和动力转向系统之间的压力低于预定压力水平时将加压流体供应到车辆的转向电机。安全备用系统包括一个电路，该电路被添加到车辆的点火和启动电路上，使得备用系统不会响应于间歇的短时间压力下降而运行。该电路包括一个布防功能，用于防止备用系统在初始启动时起作用，并进一步提供车辆起动马达的运行优先于备用系统运行。

26. 发明授权

US3482398A Hydrostatic steering system 失效
标题翻译：液压转向系统
公开(公告)号：US3482398A
公开(公告)日：1969-12-09
申请号：US3482398D
申请日：1968-01-17
申请人： DANFOSS AS
发明人： CHRISTENSEN HELGE K
IPC分类号： B62D5/32 , F15B11/16 , F15B13/06
CPC分类号： B62D5/32

27. 发明申请

US20140298798A1 Electro-Hydraulic Steering Control System 有权
标题翻译：电动液压转向控制系统
公开(公告)号：US20140298798A1
公开(公告)日：2014-10-09
申请号：US13856733
申请日：2013-04-04
申请人： CATERPILLAR INC.
发明人： Daryl James Belshan , Beau Daniel Kuipers , Edward William Mate , Gene Richard St. Germain
IPC分类号： B62D5/06
CPC分类号： B62D5/06 , B62D5/09 , B62D5/30 , B62D5/32 , F15B9/08 , F15B20/00
摘要： A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing.
摘要翻译：转向控制系统包括转向电路，主控制电路和冗余控制电路。主控制电路包括初级比例控制阀和主导向阀，当未操作以控制转向回路时，主导阀具有先导流体的热泄放以加热主导阀。冗余控制电路包括二次比例控制阀，以及具有热泄漏孔的减压阀，当不操作以控制转向回路时允许流体流动来加热减压阀。热过滤器也可能流经比例控制阀以升高其温度。转向控制系统的回路包含在单个阀组壳体中。

28. 发明授权

US08360195B2 Vehicle steering system 有权
标题翻译：车辆转向系统
公开(公告)号：US08360195B2
公开(公告)日：2013-01-29
申请号：US12742168
申请日：2008-11-05
申请人： Klemens Schmidt , Udo Herth
发明人： Klemens Schmidt , Udo Herth
IPC分类号： B62D5/06
CPC分类号： B62D5/091 , B62D5/093 , B62D5/30 , B62D5/32
摘要： The invention relates to a vehicle steering system having a hydraulic actuator (13) for generating a steering movement, a rotary hydraulic valve (4) for hydraulically controlling the hydraulic actuator (13), a first electronic drive (7) for actuating the hydraulic valve (4) and a first coupling element (8) for transmitting torque from the first electronic drive (7) to the hydraulic valve (4) and for preventing a transmission of torque from the hydraulic valve (4) to the first electronic drive (7).
摘要翻译：本发明涉及一种具有用于产生转向运动的液压致动器（13）的车辆转向系统，用于液压控制液压致动器（13）的旋转液压阀（4），用于致动液压阀的第一电子驱动器（4）和用于将扭矩从第一电子驱动器（7）传递到液压阀（4）并且用于防止从液压阀（4）传递到第一电子驱动器（7）的扭矩的第一联接元件（8））。

29. 发明申请

US20040182636A1 Fully hydraulic steering 有权
标题翻译：全液压转向
公开(公告)号：US20040182636A1
公开(公告)日：2004-09-23
申请号：US10727905
申请日：2003-12-04
申请人： Sauer-Danfoss A/S
发明人： Ove Pedersen , Bjarne Schmidt
IPC分类号： B62D005/00 , B62D005/06
CPC分类号： B62D5/091 , B62D5/093 , B62D5/32
摘要： The invention concerns a fully hydraulic steering with a steering member, a steering unit that can be activated by the steering member, said steering unit comprising a supply connection arrangement (P, T) with a pressure connection (P) and a tank connection (T), and a working connection arrangement (L, R) with two working connections (L, R), and a steering motor, which is connected with the working connection arrangement (L, R). It is endeavoured to increase the possibilities of steering. For this purpose, it is ensured that an auxiliary force operated steering valve is arranged in parallel to the steering unit between the supply connection arrangement (P, T) and the working connection arrangement (L, R).
摘要翻译：本发明涉及一种具有转向构件的全液压转向装置，一种可由转向构件启动的转向装置，所述转向装置包括具有压力连接（P）和油箱连接（T）的供应连接装置（P，T））和与工作连接装置（L，R）连接的具有两个工作连接（L，R）和转向马达的工作连接装置（L，R）。努力提高转向的可能性。为此，确保辅助力操作转向阀与供给连接装置（P，T）和工作连接装置（L，R）之间的转向单元平行布置。

30. 发明申请

US20030196432A1 Hydraulic steering system 有权
标题翻译：液压转向系统
公开(公告)号：US20030196432A1
公开(公告)日：2003-10-23
申请号：US10405315
申请日：2003-04-02
申请人： Sauer-Danfoss (Nordborg) A/S
发明人： Poul Henning Holm Pedersen , Jorgen Clausen , Bjarne Schmidt
IPC分类号： F16D031/02
CPC分类号： B62D5/097 , B62D5/07 , B62D5/32
摘要： A hydraulic steering system (1) with a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), and with a working connection arrangement (L, R), a directional valve (2) and a metering pump unit (3, 4) being arranged between the supply connection arrangement and the working connection arrangement, the metering pump arrangement having at least two hydraulically parallel-connected and mechanically parallel-operated metering pumps (3, 4) with a shut-off valve (6) in a hydraulic connection between the two metering pumps (3, 4), said shut-off valve (6) having a return spring (16) and a first control inlet (15) that is connected with the high-pressure connection (P).
摘要翻译：一种具有供应连接装置的液压转向系统（1），具有高压连接（P）和低压连接（T），并具有工作连接装置（L，R），方向阀（2）以及计量泵单元（3,4），其布置在所述供应连接装置和所述工作连接装置之间，所述计量泵装置具有至少两个液压平行连接和机械并联操作的计量泵（3,4），其具有关闭在两个计量泵（3,4）之间的液压连接中的所述截止阀（6），所述截止阀（6）具有复位弹簧（16）和与高压连接的第一控制入口（15）压力连接（P）。

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