公开(公告)号：US4282898A

公开(公告)日：1981-08-11

申请号：US144148

申请日：1979-11-29

申请人： James L. Harmon ,  John A. Junck

发明人： James L. Harmon ,  John A. Junck

IPC分类号： E02F9/22 ,  F15B11/16 ,  F15B13/02 ,  F15B13/042

CPC分类号： F15B11/162 ,  E02F9/2221 ,  F15B13/022 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/4053 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/50572 ,  F15B2211/7142 ,  F15B2211/781 ,  Y10T137/87185 ,  Y10T137/87201

摘要： PCT No. PCT/US79/01033 Sec. 371 Date Nov. 29, 1979 Sec. 102(e) Date Nov. 29, 1979 PCT Filed Nov. 29, 1979Heretofore the capability of operating a system (10), which supplies fluid to a hydraulic circuit (12), selectively at either a high or a low flow rate with only a single pressurized fluid source (14) has not existed. Such a system (10) includes a control valve structure (16) for controlling delivery of fluid from the source (14) to drive the circuit (12) and a flow control (22) for metering a portion of the fluid to the circuit (12). The capability of operating such a system (10) selectively at either a high or a low flow rate is advantageous in some modes of operation of the circuit (12). Herein, hydraulic circuitry (86) serves for controlling the magnitude of the portion in response to application of a signal thereto and a device (78) is provided for selectively applying the signal to the circuitry (86) for selectively directly controlling the magnitude of the portion.

摘要翻译： PCT No.PCT / US79 / 01033 Sec。 371日期1979年11月29日第 （e）日期1979年11月29日PCT申请日1979年11月29日迄今为止，以高流量或低流量选择性地操作向液压回路（12）供应流体的系统（10）的能力， 只有单个加压流体源（14）不存在。 这种系统（10）包括用于控制从源（14）输送流体以驱动回路（12）的控制阀结构（16）和用于将流体的一部分计量到电路的流量控制（22） 12）。 以高流量或低流率选择性地操作这种系统（10）的能力在电路（12）的一些操作模式中是有利的。 这里，液压回路（86）用于响应于向其施加信号而控制该部分的大小，并且提供一个设备（78）用于选择性地将该信号施加到电路（86），以选择性地直接控制 一部分。

公开(公告)号：US4267860A

公开(公告)日：1981-05-19

申请号：US109651

申请日：1980-01-04

申请人： Tadeusz Budzich

发明人： Tadeusz Budzich

IPC分类号： F15B11/05 ,  F15B13/08

CPC分类号： F15B11/05 ,  F15B2211/30535 ,  F15B2211/3055 ,  F15B2211/3058 ,  F15B2211/50545 ,  F15B2211/5156 ,  F15B2211/528 ,  F15B2211/555 ,  F15B2211/605 ,  F15B2211/7053 ,  F15B2211/71 ,  F15B2211/761 ,  Y10T137/87185 ,  Y10T137/87233 ,  Y10T137/87241

摘要： A load responsive fluid power multiple load control system using load responsive direction and flow control valves in combination with pump control responding to highest system load. Each direction flow control valve is equipped with a load responsive pressure control which automatically regulates valve inlet pressure to maintain a constant low pressure level at the motor exhaust and a load responsive negative load control to control a constant pressure differential at the motor exhaust. The load responsive control of each direction control valve blocks the pump flow to the motor while controlling negative load, providing the motor inlet with fluid from the motor exhaust.

摘要翻译： 负载响应流体动力多负载控制系统，使用负载响应方向和流量控制阀，结合泵控制响应最高系统负载。 每个方向流量控制阀配备有负载响应压力控制，其自动调节阀入口压力以在电动机排气处保持恒定的低压水平，以及负载响应负负载控制以控制电动机排气的恒定压差。 每个方向控制阀的负载响应控制阻止泵流向电动机，同时控制负负荷，为电动机入口提供来自电动机排气的流体。

公开(公告)号：US4253482A

公开(公告)日：1981-03-03

申请号：US017193

申请日：1979-03-05

申请人： William T. Stephens

发明人： William T. Stephens

IPC分类号： F15B13/04 ,  F15B11/16

CPC分类号： F15B13/0417 ,  Y10T137/2589 ,  Y10T137/87185

摘要： A hydraulic valve of the type having a plurality of flow directing spools and valve bodies, normally disposed in a stack, or sectional control valve assembly, with registering like passageways on adjacent valve bodies in fluid communication. An open center pilot arrangement is provided to initially control the pressure of fluid supplied to an output passageway of an individual valve when its spool is moved to a position to supply fluid to a load connected thereto. A balanced flow control is disposed in each valve body between an inlet passageway and an outlet passageway and to a loop and an output passageway. The flow control is operative in response to the pressure in one of the output passageways of the valve body to control the proportionate flow of the fluid to the output passageway and the outlet passageway of the valve body. A number of individual valves may be operated in a stack in such a manner that an "upstream" valve will have "priority". Under such conditions two or more valves may be operative simultaneously as long as the total fluid demanded does not exceed the source of supply. Should the demand exceed the source of supply, the valves will operate in sequence.

摘要翻译： 一种具有多个流动导向阀芯和阀体的类型的液压阀，通常设置在一个堆叠或截面控制阀组件中，其流体连通的相邻阀体上的通道相似。 提供开放的中心引导装置，以便当其阀芯移动到将流体供应到连接到其上的负载的位置时，初始地控制供应给各个阀的输出通道的流体的压力。 平衡的流量控制器设置在每个阀体之间，在入口通道和出口通道之间以及环路和输出通道之间。 流量控制响应于阀体的一个输出通道中的压力而操作，以控制流体到阀体的输出通道和出口通道的比例流动。 多个单独的阀可以以堆叠的方式操作，使得“上游”阀将具有“优先”。 在这种条件下，只要所需的总流体不超过供应源，两个或更多个阀可以同时操作。 如果需求超过供应来源，阀门将按顺序运行。

公开(公告)号：US4215720A

公开(公告)日：1980-08-05

申请号：US947984

申请日：1978-10-02

申请人： Lanson Becker

发明人： Lanson Becker

IPC分类号： F15B11/05 ,  B62D5/06 ,  F15B11/16 ,  F15B13/06 ,  F15B13/08

CPC分类号： F15B11/162 ,  F15B2211/30535 ,  F15B2211/351 ,  F15B2211/4053 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/50518 ,  F15B2211/5159 ,  F15B2211/55 ,  F15B2211/71 ,  F15B2211/781 ,  Y10T137/87185 ,  Y10T137/87241

摘要： Fluid control valve apparatus is provided having a directional control valve for metering passage of fluid from a supply passage to a feeder passage for first actuator. A pressure compensating valve is provided for regulating flow through the directional control valve and for delivering excess fluid to a compensating valve output port for power operation of a second actuator. A main relief valve is connected to the first actuator feeder passage downstream from a metering portion of the directional control valve for sensing a first actuator stall condition. The main relief valve, when actuated, delivers fluid to a tank from a supply passage, through the metering portion of the directional control valve, and a relief passage including the main relief valve upon sensing an overload condition. The rate of flow through the relief passage is subject to limitation only by the metering portion of the direction control valve.

摘要翻译： 流体控制阀装置具有方向控制阀，用于计量流体从供给通道到用于第一致动器的供给通道的通道。 提供一种压力补偿阀，用于调节通过方向控制阀的流量，并将多余流体输送到补偿阀输出端口，用于第二致动器的动力操作。 主安全阀与方向控制阀的计量部分下游的第一致动器进料通道连接，用于感测第一致动器失速状态。 主安全阀当被致动时，通过方向控制阀的计量部分将流体从供应通道传送到罐，以及在感测到过载状态时包括主安全阀的卸载通道。 通过释放通道的流量仅受到方向控制阀的计量部分的限制。

公开(公告)号：US4207740A

公开(公告)日：1980-06-17

申请号：US47771

申请日：1979-06-12

申请人： Bjorn S. Ripa

发明人： Bjorn S. Ripa

IPC分类号： E02F3/42 ,  E02F9/22 ,  F15B11/17 ,  F15B13/06 ,  F15B13/09

CPC分类号： E02F3/42 ,  E02F9/22 ,  F15B11/17 ,  F15B2211/20538 ,  F15B2211/20576 ,  F15B2211/30565 ,  F15B2211/3116 ,  F15B2211/7142 ,  F15B2211/78 ,  Y10T137/87185

摘要： A valve block for hydraulic excavators having at least two sets of valves which are each coupled to their pump. The valves are of the type which, in the unactuated state, allows the passage of pressure medium. The hydraulic devices for executing working movements of the excavator are each coupled to their valve in each set. The valves in the one set are coupled in series, counted from the pump in the sequence the valve which is coupled to the hydraulic device for the first working movement of the excavator, the valve which is coupled to the hydraulic device for the second working movement of the excavator, and the valve which is coupled to the hydraulic device for the third working movement of the excavator. The valves in the second set are similarly coupled in series counted from the pump in the sequence the valve which is coupled to the hydraulic device for the third working movement of the excavator, the valve which is coupled to the hydraulic device for the second working movement of the excavator and the valve which is coupled to the hydraulic device for the first working movement of the excavator. In the case when the excavator has caterpillar tracks driven by means of hydraulic motors, one valve for each of the hydraulic motors may be coupled before, after or in parallel with each series of valves to the hydraulic devices for executing the working movements of the excavator.

摘要翻译： 一种用于液压挖掘机的阀块，其具有至少两组各自连接到其泵的阀组。 这些阀门处于非致动状态，允许压力介质通过。 用于执行挖掘机的工作运动的液压装置每个都联接到每个组中的阀。 一组中的阀串联耦合，从泵中依次排列与阀联接的液压装置，用于挖掘机的第一工作运动，该阀联接到用于第二工作运动的液压装置 以及与挖掘机的第三工作运动的液压装置连接的阀。 第二组中的阀类似地从泵顺序地连接到与泵连接的阀，该阀联接到用于挖掘机的第三工作运动的液压装置，该阀连接到用于第二工作运动的液压装置 的挖掘机和连接到挖掘机的第一工作运动的液压装置的阀。 在挖掘机具有通过液压马达驱动的履带式履带的情况下，用于每个液压马达的一个阀可以在每个系列的阀之前，之后或之后联接到液压装置，以执行挖掘机的工作运动 。

公开(公告)号：US4139986A

公开(公告)日：1979-02-20

申请号：US828325

申请日：1977-08-29

申请人： Tadeusz Budzich

发明人： Tadeusz Budzich

IPC分类号： F15B11/044 ,  F15B11/16 ,  F15B13/04 ,  F15B13/08

CPC分类号： F15B13/0417 ,  F15B11/0445 ,  F15B11/165 ,  Y10T137/87185 ,  Y10T137/87233

摘要： A load responsive fluid power multiple load control system using a first type of load responsive direction control valves responding to upstream pressure differential between inlet and load chambers together with a second type of load responsive direction control valves responding to down stream actuator pressure or pressure differential. Load pressure signals are phased by check valve logic system to the output flow control of fixed or variable displacement pump which maintains a constant pressure differential between pump discharge pressure and highest of the load pressures.

摘要翻译： 一种负载响应流体动力多重负载控制系统，其使用响应于入口和负载室之间的上游压力差的第一类型的负载响应方向控制阀以及响应于下行致动器压力或压力差的第二类型负载响应方向控制阀。 负载压力信号由止回阀逻辑系统定相到固定或可变排量泵的输出流量控制，其保持泵排出压力和最高负载压力之间的恒定压力差。

公开(公告)号：US4133510A

公开(公告)日：1979-01-09

申请号：US767087

申请日：1977-02-09

申请人： Larry W. Lorimor

发明人： Larry W. Lorimor

IPC分类号： F15B13/04 ,  F16K11/07 ,  F15B13/042

CPC分类号： F16K11/07 ,  F15B13/0402 ,  Y10T137/5109 ,  Y10T137/86606 ,  Y10T137/8663 ,  Y10T137/87185

摘要： A pilot operated valve comprised of a cylindrical grooved spool having axially aligned throttling slots which require alignment with certain ports in an encompassing housing is prevented from rotation in the housing during reciprocation therein by a noncircular tang extending outwardly of the housing and fitted in a specially configured pilot chamber formed in an attached cover.

摘要翻译： 由具有轴向排列的节流槽组成的先导操作阀，其具有轴向排列的节流槽，其需要与围绕壳体中的某些端口对准，在其中通过从壳体向外延伸的非圆形柄往复运动，并且装配在特别配置 先导室形成在附接的盖子中。

公开(公告)号：US4112679A

公开(公告)日：1978-09-12

申请号：US731367

申请日：1976-12-06

申请人： Tadeusz Budzich

发明人： Tadeusz Budzich

IPC分类号： F15B11/044 ,  F15B13/04 ,  F16H39/46

CPC分类号： F15B13/0842 ,  F15B11/0445 ,  F15B13/0417 ,  F15B2211/20553 ,  F15B2211/25 ,  F15B2211/3051 ,  F15B2211/30535 ,  F15B2211/3056 ,  F15B2211/3116 ,  F15B2211/50563 ,  F15B2211/575 ,  F15B2211/71 ,  F15B2211/761 ,  Y10T137/2582 ,  Y10T137/87185 ,  Y10T137/87233

摘要： A load responsive direction and flow control valve for use in fluid power load responsive system. The valve maintains a selected constant flow level for control of both positive and negative loads, irrespective of the change in the load magnitude or change in the fluid pressure, supplied to the valve. System is powered by a single fixed or variable volume pump. The direction flow control valve is equipped with a load responsive control which automatically regulates pump discharge pressure to maintain either a constant low pressure level or low pressure differential at the motor exhaust. The pump discharge pressure is either regulated by bypassing of excess flow to reservoir, or by a special load responsive control, which varies the pump displacement. Direction control valve may also be equipped with a control responsive to load pressure for controlling negative loads and an inlet pressure throttling control for simultaneous control of multiplicity of loads.

公开(公告)号：US4109679A

公开(公告)日：1978-08-29

申请号：US761832

申请日：1977-01-24

申请人： Oliver W. Johnson

发明人： Oliver W. Johnson

IPC分类号： B62D5/097 ,  B62D5/08

CPC分类号： B62D5/097 ,  Y10T137/86662 ,  Y10T137/87169 ,  Y10T137/87185

摘要： A controller for fluid pressure operated devices such as power steering systems. The controller is of the type having a primary, rotatable valve member and a follow-up valve member and including a fluid meter having a metering member coupled to the follow-up valve member. The valving defines a central reference plane perpendicular to the axis of rotation of the valving, the primary valve member defining a pair of meter grooves oppositely and equally disposed about the plane. The follow-up valve defines pressure porting adjacent the plane and connected to the fluid inlet port. The primary valve member defines a pressure passage communicating with one of the meter grooves and extending a sufficient distance to communicate with the pressure porting for relative displacement of the valve members in one direction and another pressure passage communicating with the other meter groove and extending a sufficient distance to communicate with the pressure porting when the valve members are relatively displaced in the opposite direction.

摘要翻译： 用于流体压力操作装置的控制器，例如动力转向系统。 控制器是具有主要可旋转阀构件和随动阀构件的类型，并且包括具有联接到跟随阀构件的计量构件的流量计。 阀限定垂直于阀的旋转轴线的中心参考平面，主阀构件限定了围绕平面相对并均匀地布置的一对计量槽。 跟随阀定义了邻近平面并连接到流体入口的压力端口。 第一阀构件限定一个压力通道，其与一个计量槽连通并且延伸足够的距离以与压力端口连通，以使阀构件在一个方向上的相对位移和与另一个计量槽连通的另一个压力通道延伸足够的 当阀构件在相反方向上相对移位时与压力端口连通的距离。

公开(公告)号：US4099541A

公开(公告)日：1978-07-11

申请号：US741202

申请日：1976-11-12

申请人： Carl R. Binkley ,  John B. Keir ,  John H. Semchena

发明人： Carl R. Binkley ,  John B. Keir ,  John H. Semchena

IPC分类号： F15B13/08 ,  F15B13/04

CPC分类号： F15B13/08 ,  Y10T137/87185 ,  Y10T137/87241

摘要： A directional valve assembly for use in hydraulic power systems such as are used on fork lift trucks has a plurality of sliding spool directional valves and a balanced relief valve mounted in the body formed of a plurality of sections bolted and gasketed together. The main lift section has a load-holding check valve of special design together with means on the spool for opening the check valve to lower the load. Means are provided in the assembly for preventing interflow from one valve spool to another when two or more spools are simultaneously shifted. This includes a system of restrictors, check valves and passages causing the main relief valve to act as a pressure compensator responsive to the pressure requirement of the smallest load.

摘要翻译： 用于液压动力系统（例如用于叉车的液压动力系统）的换向阀组件具有多个滑动滑阀方向阀和安装在本体中的平衡安全阀，该阀由多个螺栓连接并密封在一起的部分形成。 主升降部分具有特殊设计的负载保持止回阀以及阀芯上的装置，用于打开止回阀以降低负载。 在两个或多个线轴同时移动时，在组件中设置有用于防止从一个阀芯到另一个阀芯的相互流动的装置。 这包括限制器，止回阀和通道的系统，导致主安全阀作为响应于最小负载的压力要求的压力补偿器。