Hydraulic control valve
    1.
    发明授权
    Hydraulic control valve 失效
    液压控制阀

    公开(公告)号:US5617895A

    公开(公告)日:1997-04-08

    申请号:US387833

    申请日:1995-02-17

    摘要: A hydraulic control valve (10) is proposed which comprises a device (39) for flow force compensation at an outlet control edge (36) and in which the spool sleeve (24) and the associated control spool (11) are of relatively simple construction. By means of control openings (41) and outlet openings (43) separated from one another in the spool sleeve (24), in the region of a deflecting annular groove (42), which deflects the flow behind the outlet control edge (36), in the interior of the spool sleeve, a one-piece construction of the spool sleeve (24) can be achieved, for which no internal machining of the outlet control edge (36) is required.

    摘要翻译: PCT No.PCT / DE94 / 00183 Sec。 371日期:1995年2月17日 102(e)日期1995年2月17日PCT 1994年2月19日PCT PCT。 第WO94 / 21947号公报 日期1994年9月29日提出了一种液压控制阀(10),其包括用于在出口控制边缘(36)处用于流动力补偿的装置(39),并且其中卷轴套筒(24)和相关联的控制卷轴(11) 施工相对简单 通过在卷轴套筒(24)中彼此分离的控制开口(41)和出口开口(43),在偏转环形槽(42)的区域中,偏转环形槽(42)使出口控制边缘(36)后面的流动偏转, 在卷筒套筒的内部,可以实现卷轴套筒(24)的一体构造,为此不需要对出口控制边缘(36)进行内部加工。

    Electrohydraulic adjustable pump
    4.
    发明授权
    Electrohydraulic adjustable pump 失效
    电动液压调节泵

    公开(公告)号:US5879136A

    公开(公告)日:1999-03-09

    申请号:US687511

    申请日:1996-08-01

    摘要: An electro hydraulically adjustable pump has an adjustment member which is adjustable by at least one adjustment piston, a control valve which acts upon the at least one adjusting piston, a servo amplifier which triggers the control valve and which is supplied with an actual value of a pump adjustment and an actual value of a control valve adjustment, and an element which produces an additional pulse-shape adjusting signal as a function of an angle of rotation of the pump so as to control the control valve through the servo amplifier by the additional pulse-shaped adjustment signal.

    摘要翻译: PCT No.PCT / DE95 / 00402 Sec。 371日期:1996年8月1日 102(e)日期1996年8月1日PCT 1995年3月23日PCT PCT。 出版物WO95 / 26470 日期1995年10月5日电液压可调节泵具有可由至少一个调节活塞调节的调节构件,作用于至少一个调节活塞的控制阀,触发控制阀并且被供给的伺服放大器 泵调节的实际值和控制阀调节的实际值,以及产生作为泵的旋转角度的函数的附加脉冲形状调节信号的元件,以通过伺服来控制控制阀 放大器由附加的脉冲形调整信号。

    Electromagnetically operated directional valve
    5.
    发明授权
    Electromagnetically operated directional valve 失效
    电磁式换向阀

    公开(公告)号:US6065496A

    公开(公告)日:2000-05-23

    申请号:US43041

    申请日:1999-03-15

    摘要: An electromagnetically actuated directional control valve is proposed, whose control slide (18) can be switched against a restoring spring system (45) into three switching positions (39, 41, 42) by a double-lift magnet (12). The spring system (45) has a strong spring (31) and a counter-acting weak spring (37), which are disposed on both sides of the control slide (18). With a pushing magnet (12), the control slide (18) is solely deflected against the weak spring (37), which is supported on it over the entire lift area. With a pulling magnet (12), a spring plate (32), which centers the center position (39), is pulled way from the control slide (18), which now is displaced by the weak spring (37), against the force of the strong spring (31). The tappet (29), connected with the armature, and the control slide (18) are separate independent components, which only form a frictionally connected operative connection.

    摘要翻译: PCT No.PCT / DE97 / 00277 Sec。 371 1999年3月15日 102(e)1999年3月15日PCT 1997年2月13日提交PCT公布。 出版物WO97 / 32137 日期1997年9月4日提出了一种电磁方向控制阀,其控制滑块(18)可以通过双提升磁体(12)与复位弹簧系统(45)切换成三个切换位置(39,41,42) )。 弹簧系统(45)具有设置在控制滑块(18)两侧的强弹簧(31)和反作用弱弹簧(37)。 通过推动磁体(12),控制滑块(18)仅偏转在弱弹簧(37)上,弱弹簧(37)被支撑在整个升降区域上。 利用拉动磁体(12),以中心位置(39)为中心的弹簧板(32)从控制滑块(18)拉开,控制滑块现在被弱弹簧(37)移位,抵抗力 的强劲的春天(31)。 与电枢连接的挺杆(29)和控制滑块(18)是独立的独立部件,其仅形成摩擦连接的可操作连接。