Hydraulic control system
    1.
    发明授权
    Hydraulic control system 失效
    液压控制系统

    公开(公告)号:US4072169A

    公开(公告)日:1978-02-07

    申请号:US702860

    申请日:1976-07-06

    摘要: A hydraulic control system has a three-position valve which in its central position disconnects the high-pressure and low-pressure sides of a pressure source from outlet lines but connects these sides of the source together through a low-pressure valve. Moved to either of its end positions the valve is disconnected from between the sides of the pressure source and the output lines are connected to the high-pressure and low-pressure source sides. A pressure-limiting valve is connected between the sides of the source. In addition, the high-pressure side is connected via pressure-reducing valve and a restriction to a pair of pilot valves which are in turn connected to the low-pressure side. These pilot valves are also connected to opposite chambers of a pilot cylinder that controls the valve body. The pressure-reducing valve between the pilot valves and the high-pressure side maintains a medium-pressure level in the system when the valves move from its central position.

    摘要翻译: 液压控制系统具有三位置阀,其中心位置将压力源的高压侧和低压侧与出口管线分离,但是通过低压阀将源的这些侧面连接在一起。 移动到其任一端,阀从压力源的侧面断开,输出线连接到高压和低压源侧。 限流阀连接在源的侧面之间。 此外,高压侧通过减压阀和限制器连接到一对先导阀,导向阀又连接到低压侧。 这些先导阀也连接到控制阀体的先导缸的相对的腔室。 当阀门从中心位置移动时,先导阀和高压侧之间的减压阀在系统中保持中压水平。

    Electromagnetically operated directional valve
    4.
    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。

    Electromagnet for actuating a hydraulic valve
    5.
    发明授权
    Electromagnet for actuating a hydraulic valve 失效
    用于启动液压阀的电磁铁

    公开(公告)号:US06840497B2

    公开(公告)日:2005-01-11

    申请号:US10466219

    申请日:2002-03-15

    摘要: An electromagnet (10) for actuating a hydraulic on-off valve (11), has a wet-type configuration and its armature (31) is displaced in a pressure pipe (18) when a volume of oil is switched through a throttling site (35) in such a way that switching speed can be influenced. The electromagnet (10) has a manual emergency actuation device (43) in the pressure pipe (18). If necessary, the actuating bolts (44) of said device can be engaged with a throttle screw (39) by an interlocking connection (45, 42) in order to displace said throttle screw that is arranged in the armature (31). The switching speed of the distributing valve (11) can be easily regulated from the outside when the electromagnets (10) are mounted, without impairing functioning of the manual emergency actuation device.

    摘要翻译: 用于致动液压开关阀(11)的电磁体(10)具有湿式构造,并且当一定体积的油切换通过节流部位时,其电枢(31)在压力管(18)中移位( 35)可以影响切换速度。 电磁体(10)在压力管(18)中具有手动应急致动装置(43)。 如果需要,所述装置的致动螺栓(44)可以通过互锁连接(45,42)与节流螺栓(39)接合,以便移动设置在电枢(31)中的节流螺杆。 当安装电磁铁(10)时,可以容易地从外部调节分配阀(11)的切换速度,而不会损害手动应急致动装置的功能。