公开(公告)号：US5235811A

公开(公告)日：1993-08-17

申请号：US880868

申请日：1992-05-11

Applicant: Kazuyoshi Arii ,  Shiro Watanabe ,  Kazuhiko Tsuji ,  Kiyoshi Matsui

Inventor： Kazuyoshi Arii ,  Shiro Watanabe ,  Kazuhiko Tsuji ,  Kiyoshi Matsui

IPC: E02F9/20 ,  E02F9/28 ,  G05G9/04

CPC classification number: G05G9/04 ,  E02F9/2004 ,  E02F9/2866 ,  Y10T137/87201

Abstract: A control change system for a backhoe in a construction vehicle, comprising a plurality of pilot valves for generating a pilot pressure corresponding to operations of a first and a second control levers, respectively, and a hydraulic switching unit for relaying the pilot pressure from the pilot valves and supplying the pilot pressure to a plurality of control valves. This switching unit includes a plurality of slidable spools for supplying the pilot pressure from the pilot valves selectively to the control valves. The control system further includes a first and a second switching members for selectively sliding the plurality of slidable spools. The first switching member is operable to select the swing cylinder or the hydraulic motor to be controlled by a shift in one direction of the first control lever. The second switching member is operable to switch interlocks between the first and second control levers and a boom cylinder and an arm cylinder.

Abstract translation: 一种用于建筑车辆中的反铲的控制改变系统，包括分别产生与第一和第二控制杆的操作相对应的先导压力的多个先导阀和用于将先导压力从先导 并将先导压力提供给多个控制阀。 该切换单元包括多个可滑动的线轴，用于将先导阀的先导压力选择性地提供给控制阀。 控制系统还包括用于选择性地滑动多个可滑动线轴的第一和第二切换构件。 第一切换构件可操作以通过沿第一控制杆的一个方向的移动来选择要控制的摆动缸或液压马达。 第二切换构件可操作以切换第一和第二控制杆与动臂缸和臂缸之间的互锁。

公开(公告)号：US5076144A

公开(公告)日：1991-12-31

申请号：US474029

申请日：1990-06-20

Applicant: Tadao Karakama ,  Sadao Nunotani ,  Naoki Ishizaki ,  Toshiro Takano

Inventor： Tadao Karakama ,  Sadao Nunotani ,  Naoki Ishizaki ,  Toshiro Takano

IPC: F15B13/02

CPC classification number: F15B13/02 ,  Y10T137/87201 ,  Y10T137/87893

Abstract: A poppet valve device according to the present invention is adapted to sequentially operate a plurality of poppet valves the switching operation of a pilot valve, for example, an electromagnetic solenoid or the like which operates in response to an external input signal. The above-mentioned poppet valve device includes first and second poppet valves (A, B) each of which is constructed so that a poppet (32) for communicating or intercepting an inlet port (30) and an outlet port (31) with or from each other may be moved towards a communicating position by an inlet port side pressure acting upon its pressure receiving portion (32a). The poppet (32) may be moved towards an intercepting position by a pressure acting upon its back pressure chamber (38a, 38b). A pilot valve (c) connects the respective back pressure chambers of these poppet valves to a tank (2) and includes a variable choke portion controlled by an external input signal so that the pressures at the respective back pressure chambers, when the respective poppets of the respective poppet valves are moved to the positions for communicating the respective inlet ports with the respective outlet ports, may be different from each other.

公开(公告)号：US5040565A

公开(公告)日：1991-08-20

申请号：US425174

申请日：1989-10-17

Applicant: Tadao Karakama ,  Naoki Ishizaki ,  Yosuke Oda

Inventor： Tadao Karakama ,  Naoki Ishizaki ,  Yosuke Oda

IPC: F15B11/00 ,  F15B11/08 ,  F15B13/00 ,  F15B13/08

CPC classification number: F15B13/0842 ,  F15B13/0807 ,  F15B13/0892 ,  F15B13/0896 ,  F15B2013/006 ,  Y10T137/87201 ,  Y10T137/87209 ,  Y10T137/87885

Abstract: In a pilot operated control valve system provided with a plurality of valves for controlling hydraulic equipment such as hydraulic cylinders, there are employed a plurality of valves each of which does not interfere with each other in operation and requires a minimum mounting space in said system to enable said system to be a small-sized system having a construction easily adapted to control a plurality of hydraulic equipments. The control valve system comprises: a valve (10) assuming a rectangular parallelepiped form; a first (11) and a second (12) pump port passage so formed in an upper portion of a valve housing of said valve (10) as to horizontally and parallelly extend to each other and as to communicate with a hydraulic pump; a tank port passage (13) formed in a lower central portion of said valve housing; a pilot tank port passage (25) so formed ina central portion of the valve housing as to communicate with a drain tank; a first (14) and a second (15) port passage vertically formed in said valve housing so as to separately open into an upper surface of said valve housing to communicate with each of pressure chambers of said hydraulic equipment; a plurality of valves (19, 20, 23, 24) inserted into a plurality of valve receiving bores formed in said valve housing so as to shud off desired ones of these port passages from said remaining port passages; and pilot valves for supplying the pilot pressure oil to these valves.

公开(公告)号：US4986165A

公开(公告)日：1991-01-22

申请号：US400019

申请日：1989-08-29

Applicant: Satoshi Miyaoka

Inventor： Satoshi Miyaoka

IPC: F15B13/042

CPC classification number: F15B13/0422 ,  Y10T137/5196 ,  Y10T137/87201

Abstract: An operating apparatus for a hydraulic shovel for operating a plurality of control valves which control the operation of work devices includes pilot type control valves, pilot valves, levers for operating pilot valves, and an operating pattern switching valve. The operating pattern switching valve has a rotary spool inserted into a casing. A plurality of input ports are provided in a peripheral surface of the casing with phases deviated from each other axially and peripherally. A plurality of output ports are provided oppositely to the input ports.

Abstract translation: 用于操作控制工作装置的操作的多个控制阀的液压挖掘机的操作装置包括先导式控制阀，先导阀，用于操作先导阀的杠杆和操作模式切换阀。 操作模式切换阀具有插入壳体中的旋转滑阀。 多个输入端口设置在壳体的周边表面中，其相位轴向和周向地彼此偏离。 多个输出端口与输入端口相对地设置。

公开(公告)号：US4798126A

公开(公告)日：1989-01-17

申请号：US29001

申请日：1987-03-23

Applicant: Tadeusz Budzich

Inventor： Tadeusz Budzich

IPC: F15B11/05 ,  E02F9/22 ,  F15B11/16 ,  F15B13/02

CPC classification number: F15B11/165 ,  E02F9/2225 ,  F15B2211/20538 ,  F15B2211/30525 ,  F15B2211/3111 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/6052 ,  F15B2211/6355 ,  F15B2211/6654 ,  F15B2211/7053 ,  F15B2211/71 ,  Y10T137/87185 ,  Y10T137/87201 ,  Y10T137/87209 ,  Y10T137/87217

Abstract: A load responsive system having at least one direction and flow control valve, the flow control of which is accomplished in response to a control signal above a certain predetermined pressure level and a fixed displacement pump, provided with a bypass type output flow control, operable to maintain a constant pressure differential between pump discharge pressure and load pressure of the load controlled by the direction and flow control valve. The output flow control is provided with an unloading control, which maintains the discharge pressure of the pump at any preselected minimum pressure level once the control signal transmitted to the direction and flow control valve drops below a certain minimum predetermined pressure level signifying that the system is in standby condition.

Abstract translation: 一种负载响应系统，其具有至少一个方向和流量控制阀，其流量控制是响应于高于某一预定压力水平的控制信号而实现的，以及具有旁路型输出流量控制的固定排量泵，其可操作以 保持泵排出压力与由方向和流量控制阀控制的负载负载压力之间的恒定压差。 输出流量控制器设置有一个卸载控制器，一旦传输到方向和流量控制阀的控制信号下降到指示系统所在的一定的最小预定压力水平以下，则泵将泵的排出压力保持在任何预选的最小压力水平 处于待机状态。

公开(公告)号：US4794842A

公开(公告)日：1989-01-03

申请号：US82428

申请日：1987-08-06

Applicant: Hermann Eiden

Inventor： Hermann Eiden

IPC: F15B13/10 ,  F15B19/00 ,  G01N3/00

CPC classification number: F15B19/00 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: For connecting servohydraulic linear or rotation drives to a line with impressed pressure a valve means is provided which shuts off the pressure-carrying lines in leakage-free manner and connects the consumer line pressure-free to the tank. For a trial setting operation a fluid flow of reduced pressure and amount can be supplied to the consumers via an auxiliary means. The connection of the consumers is surge-free.

Abstract translation: 为了将伺服液压线性或旋转驱动器连接到具有压力的线路，提供了一种阀装置，其以无泄漏的方式关闭压载线，并将消费者线路无压力连接到罐。 对于试验设定操作，可以通过辅助装置向消费者提供减压和减量的流体流。 消费者的联系无浪潮。

公开(公告)号：US4637431A

公开(公告)日：1987-01-20

申请号：US763938

申请日：1985-08-08

Applicant: John F. Taplin

Inventor： John F. Taplin

IPC: F15B13/04 ,  F15B13/043

CPC classification number: F15B13/0405 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: In a pilot operated fluid supply valve the usual control pressure applied to the control surface of a main supply valve can be interrupted by a fluid switch and replaced with a pressure which closes the main supply valve. The fluid switch is responsive to the load pressure in the load port of the main valve. The fluid switch may include a rocker arm actuated by a diaphragm in fluid communication with the load port. In one system, main supply and waste diaphragm valves are controlled by a pilot valve and a pressure reversing valve, and the fluid switch is positioned between one of those valves and the main supply valve. In another system, the main valves are controlled by a dual output pilot valve.

Abstract translation: 在先导操作的液体供给阀中，施加到主供给阀的控制表面的通常的控制压力可以被流体开关中断，并且被关闭主供应阀的压力替换。 流体开关响应于主阀的负载端口中的负载压力。 流体开关可以包括由与负载端口流体连通的隔膜致动的摇臂。 在一个系统中，主供水和废水隔膜阀由先导阀和压力换向阀控制，流体开关位于这些阀和主供油阀之间。 在另一个系统中，主阀由双输出先导阀控制。

公开(公告)号：US4622998A

公开(公告)日：1986-11-18

申请号：US766351

申请日：1985-08-16

Applicant: Willy Kussel ,  Bayramali Demircan

Inventor： Willy Kussel ,  Bayramali Demircan

IPC: E21D23/26 ,  F15B13/06

CPC classification number: E21D23/26 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: A hydraulic control device is incorporated in a hydraulic control system for a mine roof support assembly. The hydraulic control system includes a plurality of hydraulic control valves which are controlled by the hydraulic control device. The hydraulic control device is constituted by a longitudinal slide valve having a slide member longitudinally reciprocable in a slide valve housing. A rotary drive is provided for moving the slide member within the slide valve housing. The slide member is provided with two axial bores each of which opens into a respective pair of axially-spaced radial bores which terminate at the peripheral surface of the slide member. A first radial bore of each axial bore opens into a respective annular groove formed in the slide valve housing. The second radial bore of each axial bore is connected to a respective group of control ports provided on the slide valve housing. The control ports of each group are axially spaced, and are connected to the hydraulic control valves by respective hydraulic control lines.

Abstract translation: 液压控制装置结合在用于矿山屋顶支撑组件的液压控制系统中。 液压控制系统包括由液压控制装置控制的多个液压控制阀。 液压控制装置由纵向滑动阀构成，该纵向滑阀具有在滑动阀壳体中纵向往复运动的滑动构件。 提供旋转驱动器用于使滑动构件在滑阀壳体内移动。 滑动构件设置有两个轴向孔，每个轴孔通向相应的一对轴向间隔开的径向孔，其终止于滑动构件的外周表面。 每个轴向孔的第一径向孔通向形成在滑阀壳体中的相应的环形槽。 每个轴向孔的第二径向孔连接到设置在滑阀壳体上的相应组的控制口。 各组的控制口轴向隔开，并通过相应的液压控制线与液压控制阀连接。

公开(公告)号：US4523513A

公开(公告)日：1985-06-18

申请号：US507820

申请日：1983-06-27

Applicant: Wolfgang Gudat ,  Alfred Klatt ,  Gunter Sebesta

Inventor： Wolfgang Gudat ,  Alfred Klatt ,  Gunter Sebesta

IPC: E05F15/50 ,  F15B11/10 ,  E05F15/02 ,  F15B13/043

CPC classification number: E05F15/50 ,  E05Y2900/132 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: A pneumatic door control equipped with a door control valve for operating a door drive to an open or a closed position. The door control valve has an opening and a closing solenoid-operated pilot valve and an opening and closing spool valve, each operable to a passage or a vent position. A shuttle valve is part of the control valve and works in conjunction with an operator-controlled emergency valve to vent both spool valves simultaneously. A differential pressure switch is connected to the door drive to sense abnormal pressure expended in a door-opening or closing movement. Such an occurrence will output a signal to an electronic switching device which also monitors, via limit switches, whether a door is fully opened or fully closed. If excess pressure occurs during a door-closing movement, the switching device will trigger the control valve to reverse to the opening position. If excess pressure occurs during an opening movement, the switching device triggers both solenoid-operated pilot valves simultaneously. The control valve has a non-return valve which recognizes the dual triggering condition and outputs to the shuttle valve so that the two spool valves can be vented simultaneously. A throttle valve is disposed between the emergency valve and control valve for restricting the flow of pressurized air following an emergency condition.

Abstract translation: 一种装有门控制阀的气动门控制器，用于将门驱动器操作到打开或关闭位置。 门控阀具有开启和关闭的电磁操作先导阀以及打开和关闭滑阀，每个可操作到通道或通风位置。 梭阀是控制阀的一部分，并与操作者控制的紧急阀一起工作，同时排出两个滑阀。 差压开关连接到门驱动器以感测门打开或关闭运动中消耗的异常压力。 这种情况将向电子开关装置输出信号，电子开关装置还通过限位开关监视门是完全打开还是完全关闭。 如果在关门运动期间发生过压，则开关装置将触发控制阀与打开位置相反。 如果在打开运动期间发生过大压力，则开关装置同时触发电磁操作的先导阀。 控制阀具有单向阀，其识别双重触发条件并输出到梭阀，使得两个滑阀可以同时排放。 节流阀设置在紧急阀和控制阀之间，用于限制紧急情况下的加压空气流。

公开(公告)号：US4516605A

公开(公告)日：1985-05-14

申请号：US602654

申请日：1984-04-20

Applicant: John F. Taplin

Inventor： John F. Taplin

IPC: F16K11/052 ,  F15B13/04 ,  F15B13/043

CPC classification number: F15B13/0405 ,  F15B13/0438 ,  Y10T137/86847 ,  Y10T137/87201 ,  Y10T137/87209 ,  Y10T137/87217

Abstract: A four-way control valve comprises two side by side chambers 130, 132. Each chamber has high and low pressure inlet ports 151, 156, 157, 159 and an outlet port 162, 164. The high and low inlet ports of each chamber are alternately closed by respective flexible vanes 126, 128. The vanes extend through and pivot on walls 135, 137 of the chambers and the opposite ends of the vanes are joined by a linking bar 124. The linking bar is driven by a common actuator such as a solenoid 120. The pressures applied to the inlet ports of the chambers are inverted such that the pressures at the two outlet ports are opposite high and low pressures. The four-way valve may serve as a pilot valve 22 to actuate a higher flow capacity three or four-way diaphragm valve.

Abstract translation: 四通控制阀包括两个并排室130,132。每个室具有高低压入口151,156,157,159和出口162,164.每个室的高和低入口是 由相应的柔性叶片126,128交替地封闭。叶片延伸穿过并在室的壁135,137上枢转，并且叶片的相对端通过连接杆124连接。连接杆由公共致动器驱动，例如 螺线管120.施加到室的入口的压力被反转，使得两个出口处的压力与高压和低压相反。 四通阀可以用作先导阀22以致动较高流量的三通或四通隔膜阀。