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公开(公告)号：US4170925A
公开(公告)日：1979-10-16
申请号：US784913
申请日：1977-04-05
申请人： Klaus Katz , Wolfgang Pfundstein , Reinhold Abt
发明人： Klaus Katz , Wolfgang Pfundstein , Reinhold Abt
CPC分类号： B62D5/061
摘要： A by-pass valve for servo-steering systems to turn off the working pressure in a cylinder chamber of a pressure medium cylinder, whose valve housing includes a valve connection adapted to be connected with the cylinder chamber, a valve connection adapted to be essentially pressure-relieved, and a valve seat for a check valve operatively connected between the two valve connections; the valve housing is thereby adjustable relative to the axis of a steering shaft for purposes of changing the position of its valve seat while the closure member of the check valve is thereby retained by springy means in its normal position closing-off the valve connections with respect to one another and is actuatable into its by-pass position connecting the valve connections with each other by way of a stem movable in unison with the closure member by way of a cam surface fixed for movement in unison with the steering shaft; the valve housing is thereby exclusively rotatable in relation to its valve housing axis but is immovably supported in the directions of the valve housing while the valve seat axis does not coincide with the valve housing axis.
摘要翻译： 用于伺服转向系统的旁通阀，用于关闭压力介质气缸的气缸室中的工作压力，其压力介质气缸的阀壳体包括适于与气缸室连接的阀连接件，适于基本上压力 以及用于止回阀的阀座，其操作地连接在两个阀连接之间; 因此，为了改变其阀座的位置，阀壳体可以相对于转向轴的轴线调节，同时止回阀的闭合构件因此通过弹性装置保持在其正常位置，以关闭阀门连接关闭 并且可通过固定为与转向轴一致运动的凸轮表面通过与阀盖可移动地连接阀连接件的旁通位置而致动; 因此，阀壳体可以相对于其阀壳体轴线独特地旋转，而是在阀壳体的方向上不可移动地支撑，同时阀座轴线不与阀壳体轴线重合。
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公开(公告)号：US4064789A
公开(公告)日：1977-12-27
申请号：US547569
申请日：1975-02-06
申请人： Jaromir Bordovsky , Klaus Katz
发明人： Jaromir Bordovsky , Klaus Katz
摘要： A control valve for a pressure medium servo-motor of a servo-steering mechanism whose valve-adjusting member includes a reaction pressure surface that is immovable relative thereto and is adapted to be acted upon by the reaction pressure in a reaction pressure chamber connected exclusively to one of the two working pressure chambers of the working cylinder of the servo-motor; the valve-adjusting member is also connected with the reaction piston in such a manner as to enable a limited free relative adjusting path between the valve-adjusting member and the reaction piston; the reaction piston, in its turn, includes a reaction relief pressure surface which is adapted to be acted upon by the reaction pressure in a reaction pressure chamber connected exclusively to the same working pressure chamber and which is oppositely directed to the reaction pressure surface; the reaction piston is also supported with respect to the valve housing by means of a spring member which is under a prestress force while its reaction relief pressure surface is arranged in a reaction pressure chamber of the valve housing.
摘要翻译： 一种用于伺服转向机构的压力介质伺服电动机的控制阀，其调节阀构件包括相对于其不可移动的反应压力表面，并且适于在反应压力室中作用于反应压力室中， 伺服电机工作气缸的两个工作压力室之一; 阀调节构件也与反应活塞连接，使得能够在阀调节构件和反作用活塞之间实现有限的自由相对调节路径; 反应活塞又包括反应释放压力表面，该反应释放压力表面适于在与专用于相同工作压力室连接且反向压力表面的反应压力室中由反应压力作用; 反作用活塞还通过处于预应力的弹簧构件相对于阀壳体支撑，同时其反作用力释放压力表面设置在阀壳体的反作用压力室中。
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公开(公告)号：US4080871A
公开(公告)日：1978-03-28
申请号：US649807
申请日：1976-01-16
申请人： Klaus Katz , Jaromir Bordovsky
发明人： Klaus Katz , Jaromir Bordovsky
CPC分类号： B62D5/24
摘要： A pressure medium servo-motor, especially for servo-steering systems, in which a working piston operating in a working cylinder is provided with a piston pressure surface actuatable by the pressure in one working pressure chamber of the working cylinder for producing a servo-force directed in the sense of the relative movement of the working piston with respect to the working cylinder; the piston pressure surface of the working piston is thereby reduced with respect to the reference value fulfilling the equilibrium condition of the piston pressure forces in the neutral position of the working piston, by a reducing piston which includes a pressure disengaging surface actuatable by the pressure in the working pressure chamber and a relief pressure surface actuatable by the pressure in a relief pressure chamber.
摘要翻译： 一种压力介质伺服电动机，特别是对于伺服转向系统，其中在工作气缸中工作的工作活塞具有可由工作气缸的一个工作压力室中的压力驱动的活塞压力表面，用于产生伺服力 指向工作活塞相对于工作缸的相对运动的意义; 因此，工作活塞的活塞压力表面相对于基于工作活塞中性位置的活塞压力的平衡状态的参考值而减少，还原活塞包括可由压力 工作压力室和通过安全压力室中的压力可启动的安全压力表面。
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公开(公告)号：US4218958A
公开(公告)日：1980-08-26
申请号：US885188
申请日：1978-03-10
摘要： A servo-steering mechanism for vehicles with a feedback of a load-dependent reaction moment onto the steering hand wheel by means of at least one reaction pressure cylinder connected with a working pressure chamber, in which a reaction pressure piston operating onto the steering hand wheel is adapted to be actuated in one direction of its piston axis by the working pressure and in the other direction of its piston axis is adapted to be supported at a support spring and is also adapted to come into abutment at a stop fixed relative to the reaction pressure cylinder, when the working pressure has been brought to a value corresponding to the prestress of the support spring; between its starting position with an unstressed support spring and its shut-off or turn-off position at the associated stop the reaction pressure piston thereby comes into additional abutment at least at one reducing spring counteracting the working pressure, whereby the reducing spring is adapted to be supported either directly or by way of at least one further reducing spring at a counter abutment of the reaction pressure cylinder.
摘要翻译： 一种用于车辆的伺服转向机构，其具有通过与工作压力室连接的至少一个反作用压力缸而在转向手轮上具有与负载相关的反作用力的反馈，其中，操作在转向手轮上的反作用力活塞 适于在其活塞轴线的一个方向上被工作压力致动，并且在其活塞轴线的另一方向上适于被支撑在支撑弹簧处并且还适于在相对于反作用力固定的止动件处邻接 当工作压力达到对应于支撑弹簧的预应力的值时; 在其起始位置与无应力的支撑弹簧之间以及在相关联的止挡处的关闭或关闭位置，反作用力活塞因此至少在一个减小弹簧处抵抗工作压力而进一步抵靠，由此减压弹簧适于 在反应压力缸的对接台处直接或通过至少一个进一步的还原弹簧支撑。
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