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    • 23. 发明授权
    • Flow divider valve
    • 分流阀
    • US4756330A
    • 1988-07-12
    • US27338
    • 1987-03-18
    • Werner Tischer
    • Werner Tischer
    • F15B13/02G05D16/10G05D11/02
    • F15B13/022Y10T137/2524Y10T137/86734Y10T137/86775
    • In a flow divider valve for pressure feed to a hydraulic circuit for auxiliary power steering and to a hydraulic circuit for a power take-off the interior of a hollow regulator piston receives pressure feed for distribution to the hydraulic circuits. For one such circuit, preferably the power take-off, flow passes via multiple bores and coacting flow control grooves of the regulator piston and a housing in which it reciprocates. Accordingly, a desired flow quantity and pressure advantages are achieved, in comparison with use of a single flow control bore which would require a larger piston traverse causing delays in pressure build-up as well as oscillations and strong flow pulses and energy loss.
    • 在用于辅助动力转向的液压回路的压力供给的分流阀和用于动力输出的液压回路中,中空调节器活塞的内部接收压力进料以分配到液压回路。 对于一个这样的电路,优选地,动力输出,流动通过调节器活塞的多个孔和共同作用流动控制槽以及其往复运动的壳体。 因此,与使用单个流量控制孔相比,实现了所需的流量和压力优点,该流量控制孔将需要较大的活塞横动,导致压力累积的延迟以及振荡和强流动脉冲和能量损失。
    • 29. 发明授权
    • All-wheel steering system for motor vehicles
    • 电动车辆全轮转向系统
    • US5086863A
    • 1992-02-11
    • US613500
    • 1990-11-02
    • Werner Tischer
    • Werner Tischer
    • B62D5/12B62D5/30B62D7/14B62D7/15
    • B62D7/148B62D7/1572
    • An all-wheel steering system for motor vehicles includes an adjusting motor (10) for the rear wheels. The motor has a piston rod on which two fixed working pistons (25 and 25A) and, in a housing segment located between the working pistons, two movable steering pistons (27 and 27A) are mounted. The working pistons (25 and 25A) and steering pistons (27 and 27A) form control chambers (28 and 28A) that are constantly connected to a pump (2). Between the steering pistons (27 and 27A) is a pressure chamber (33) in which a spring element (34) acts upon the steering pistons (27 and 27A). The pressure chamber (33) can be blocked via a 2/2-way valve (37) that is controlled by a switching device (17) or it can be connected with a tank (3). When the rear-wheel steering system (11) is in the operating position, the two steering pistons (27 and 27A) come to rest against a sleeve (35) on the piston rod by virtue of the pump pressure that is fed into the control chambers (28 and 28A). The piston rod (24) is then freely movable in both steering directions. In case of a pressure drop in the control chambers (28 and 28A) due to a disturbance in the hydraulic circuit, the 2/2-way valve is shifted and steering pistons (27 and 27A), by virtue of the force of the spring element (34), move against stops (36 and 36A). To delay the return motion, steering pistons (27 and 27A) push the hydraulic fluid located in the control chambers (28 and 28A) into the tank (3) via a diaphragm. This means that the rear-wheel steering system (11) is locked in the straight-forward running position.
    • PCT No.PCT / EP89 / 00653 Sec。 371日期1990年11月2日 102(e)日期1990年11月2日PCT提交1989年6月10日PCT公布。 出版物WO89 / 12568 日本1989年12月28日。用于机动车辆的全轮转向系统包括用于后轮的调节马达(10)。 电动机具有活塞杆,在该活塞杆上安装有两个固定的工作活塞(25和25A),并且在位于工作活塞之间的壳体段中安装有两个可动转向活塞(27和27A)。 工作活塞(25和25A)和转向活塞(27和27A)形成恒定地连接到泵(2)的控制室(28和28A)。 在转向活塞(27和27A)之间是压力室(33),弹簧元件(34)作用在转向活塞(27和27A)上。 压力室33可以通过由开关装置(17)控制的二通阀(37)阻塞,或者可以与罐(3)连接。 当后轮转向系统(11)处于操作位置时,两个转向活塞(27和27A)借助于被送入控制器的泵压力而靠在活塞杆上的套筒(35)上。 室(28和28A)。 然后活塞杆(24)可以在两个转向方向上自由移动。 在由于液压回路中的扰动导致的控制室(28,28A)的压力下降的情况下,由于弹簧的力,二位二通阀被转动,转向活塞(27和27A) 元件(34)移动抵靠止动件(36和36A)。 为了延迟返回运动,转向活塞(27和27A)通过隔膜将位于控制室(28和28A)中的液压流体推入罐(3)。 这意味着后轮转向系统(11)被锁定在直立行驶位置。
    • 30. 发明授权
    • Hydrostatic steering device
    • 液压转向装置
    • US5056311A
    • 1991-10-15
    • US445721
    • 1989-11-27
    • Werner Tischer
    • Werner Tischer
    • B62D5/07B62D5/093F15B11/16F16D31/02
    • F15B11/16B62D5/07B62D5/093F15B2211/20553F15B2211/25F15B2211/30505F15B2211/30585F15B2211/321F15B2211/325F15B2211/4053F15B2211/428F15B2211/50554F15B2211/50572F15B2211/528F15B2211/7053F15B2211/7058F15B2211/71
    • A hydrostatic steering device is provided with a pump connected with a reservoir, a steering valve, a controlled-volume pump that is capable of being activated by a steering wheel and with a steering cylinder. The steering mechanism has a variable working flow and a constant pilot flow, with the pilot stream flowing through a constant throttle and the pressure drop through the constant throttle serving as a control signal for the conveying flow in a pressure delivery line. The controlled-volume pump is coupled mechanically with an adjustment throttle through which the pilot flows. Between the constant throttle and the adjustment throttle lies a pressure compensator that is controlled by the adjustment throttle's differential pressure. To receive the load signal, a control line branches off between the constant throttle and the pressure compensator and leads to the pump or, in the case of a fixed displacement pump with a rear-position flow-dividing valve, to the flow-dividing valve.
    • 静液压转向装置设置有与储存器连接的泵,转向阀,能够被方向盘和转向缸活动的受控体积的泵。 转向机构具有可变的工作流程和恒定的先导流量,其中先导流流过恒定的节流阀,并且通过恒定的节流阀的压降作为压力输送管线中的输送流的控制信号。 受控体积泵与调节节流阀机械耦合,导向件通过该调节节流阀流动。 在恒定节流阀和调节节流阀之间是一个由调节节气门差压控制的压力补偿器。 为了接收负载信号,控制线在恒定节流阀和压力补偿器之间分支并且通向泵,或者在具有后排分流阀的固定排量泵的情况下,分流阀 。