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36 条记录 (耗时 0.019 秒)

    Hydraulic circuit system
    11.
    发明授权
    Hydraulic circuit system 失效
    液压回路系统

    公开(公告)号：US06378302B1

    公开(公告)日：2002-04-30

    申请号：US09674366

    申请日：2000-10-31

    申请人： Yusaku Nozawa ,  Mitsuhisa Tougasaki ,  Yoshizumi Nishimura ,  Kinya Takahashi

    发明人： Yusaku Nozawa ,  Mitsuhisa Tougasaki ,  Yoshizumi Nishimura ,  Kinya Takahashi

    IPC分类号： F16D3102

    CPC分类号： F15B11/167 ,  E02F9/128 ,  E02F9/2225 ,  E02F9/226 ,  E02F9/2296 ,  F15B11/163 ,  F15B11/168 ,  F15B13/0417 ,  F15B2211/40515 ,  F15B2211/40569 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/5157 ,  F15B2211/55 ,  F15B2211/6355 ,  F15B2211/651 ,  F15B2211/71 ,  F15B2211/78

    摘要： A hydraulic line slit 20 formed in a valve body 50 of a flow distribution valve 5-1, a control chamber 70, and a hydraulic line 31-1 are connected to a signal transmitting hydraulic line 9. A lap portion 32 is formed in the hydraulic line slit 20, the lap portion 32 having a check valve function with a lap amount X when the valve body 50 is in a cutoff position. A 2-position, 3-way valve 11 is disposed in the hydraulic line 31-1. The valve 11 connects the control chamber 70 of the flow distribution valve 5-1 to only the signal transmitting hydraulic line 9 when an external signal F is not applied, and to both the signal transmitting hydraulic line 9 and a lower-pressure detecting hydraulic line 35, which is connected an outlet passage 5b of a flow distribution valve 5-2 on the side of a hydraulic actuator 3-2, when the external signal F is applied. With such an arrangement, during a combined operation including driving of an inertial body, a pressure on the lower load pressure side can be detected as a signal pressure without cutting off a load-pressure detecting hydraulic line on the higher load pressure side. Further, a portion for detecting a load pressure is simplified and the flow distributing function is not impaired.

    摘要翻译： 形成在分流阀5-1的阀体50上的液压线狭缝20，控制室70以及液压管线31-1连接到信号传输液压管路9上。搭接部分32形成在 液压线狭缝20，当阀体50处于切断位置时，具有止回阀的搭接部32具有搭接量X。 2位三通阀11设置在液压管线31-1中。 当未施加外部信号F时，阀11将分流阀5-1的控制室70仅连接到信号传输液压管路9，并且在信号传输液压管线9和低压检测液压管线 当外部信号F被施加时，其连接有液压致动器3-2一侧的分流阀5-2的出口通道5b。 通过这样的布置，在包括惯性体的驱动的组合操作中，可以将下负载压力侧的压力检测为信号压力，而不会在较高负载压力侧切断负载压力检测液压管路。 此外，用于检测负载压力的部分被简化，并且流量分配功能不受损害。

    PROPORTIONAL FLOW CONTROL OF A FLUID PUMP ASSEMBLY
    13.
    发明申请
    PROPORTIONAL FLOW CONTROL OF A FLUID PUMP ASSEMBLY 有权
    流体泵组件的比例流量控制

    公开(公告)号：US20140174549A1

    公开(公告)日：2014-06-26

    申请号：US14136277

    申请日：2013-12-20

    申请人： Eaton Corporation

    发明人： PHILIP JAMES DYBING

    IPC分类号： G05D7/06

    CPC分类号： G05D7/0635 ,  F15B11/0423 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/6051 ,  F15B2211/6057 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/651 ,  F15B2211/654 ,  F15B2211/6651 ,  F15B2211/865 ,  Y10T137/0368 ,  Y10T137/86027

    摘要： A pump control assembly having a flow control assembly disposed between the first end of a load sensing valve and a fluid pump is disclosed. The flow control assembly may include an orifice, a first valve assembly, and a second valve assembly. When the first valve assembly is in an open position and the second valve assembly is in a first position, fluid passing through the orifice is directed to a fluid reservoir and to the load sensing valve. When the first valve assembly is in a closed position and the second valve assembly is in a second position, all fluid passing through the orifice is directed to the load sensing valve. An electronic controller can be configured to transmit an output current to the first and second valve assemblies in response to an operational parameter of a prime mover supplying power to the fluid pump.

    摘要翻译： 公开了一种具有设置在负载感测阀的第一端和流体泵之间的流量控制组件的泵控制组件。 流量控制组件可以包括孔口，第一阀组件和第二阀组件。 当第一阀组件处于打开位置并且第二阀组件处于第一位置时，通过孔的流体被引导到流体储存器和负载感测阀。 当第一阀组件处于关闭位置并且第二阀组件处于第二位置时，通过孔的所有流体被引导到负载感测阀。 电子控制器可以被配置为响应于向动力泵提供动力的原动机的操作参数而将输出电流传输到第一和第二阀组件。

    Hydraulic supply systems
    14.
    发明授权
    Hydraulic supply systems 有权
    液压供油系统

    公开(公告)号：US07900445B2

    公开(公告)日：2011-03-08

    申请号：US11697900

    申请日：2007-04-09

    申请人： Andreas Brockmann

    发明人： Andreas Brockmann

    IPC分类号： F15B11/16 ,  E02F9/22

    CPC分类号： F15B11/162 ,  F15B11/168 ,  F15B2211/30505 ,  F15B2211/30535 ,  F15B2211/3111 ,  F15B2211/3127 ,  F15B2211/327 ,  F15B2211/40515 ,  F15B2211/41509 ,  F15B2211/45 ,  F15B2211/6051 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/6057 ,  F15B2211/6058 ,  F15B2211/651 ,  F15B2211/7142 ,  F15B2211/78 ,  F15B2211/781 ,  Y10T137/0324

    摘要： Disclosed is a hydraulic system for supplying primary and auxiliary pressure medium consumers with different system pressures, which exceed the load pressure by a pre-determined control pressure differential. Primary load pressure is used to produce a first control pressure differential for operating a primary pressure medium consumer. Auxiliary load pressure is converted in an amplifying device to produce a second, higher control pressure differential for operating an auxiliary pressure medium consumer. The amplifying device consists of a pressure reducing valve, which is permanently adjusted to a pre-determined reduced pressure and has a line conducting the system pressure connected to a first pressure inlet, a load reporting line conducting the load pressure of the auxiliary pressure medium consumer connected to a second inlet and a load reporting line subjecting the pressure control valve to increased load pressure connected to an outlet and the control piston is subjected on its one side to the force of a permanently adjusted spring.

    摘要翻译： 公开了一种液压系统，用于向初级和辅助压力介质消耗者提供不同的系统压力，其通过预定的控制压力差超过负载压力。 初级负载压力用于产生用于操作初级压力介质消耗器的第一控制压力差。 辅助负载压力在放大装置中转换以产生用于操作辅助压力介质消耗器的第二较高控制压差。 放大装置由减压阀组成，该减压阀被永久地调节到预定的减压，并具有连接到第一压力入口的系统压力的管线，负载报告线，其传导辅助压力介质消耗器的负载压力 连接到第二入口和负载报告线路，使压力控制阀增加连接到出口的负载压力，并且控制活塞在其一侧受到永久调节的弹簧的力。

    Hydraulic system for utility vehicles, in particular agricultural tractors
    15.
    发明申请
    Hydraulic system for utility vehicles, in particular agricultural tractors 有权
    多用途车辆液压系统，特别是农用拖拉机

    公开(公告)号：US20070101710A1

    公开(公告)日：2007-05-10

    申请号：US11472503

    申请日：2006-06-21

    申请人： Andreas Brockmann ,  Michael Martens

    发明人： Andreas Brockmann ,  Michael Martens

    IPC分类号： F16D31/02

    CPC分类号： F15B11/162 ,  F15B11/165 ,  F15B11/168 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/30535 ,  F15B2211/3144 ,  F15B2211/322 ,  F15B2211/327 ,  F15B2211/6054 ,  F15B2211/6058 ,  F15B2211/651 ,  F15B2211/653 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/7142

    摘要： Disclosed is a hydraulic system for utility vehicles, in particular agricultural tractors, for supplying primary and/or auxiliary pressure medium consumers (6, 11, 12) with pressure medium, comprising a pump (1), whose pressure and flow are controlled as a function of the load pressure of the pressure medium consumers by a pressure and flow controller (13) to which whenever auxiliary pressure medium consumers (11, 12) are operating, a higher load pressure compared to the actual load pressure is reported through an amplifier device. In order to obtain rapid response of an actuated auxiliary pressure medium consumer it is proposed that the amplifier device (29) consists of a proportionally controllable pressure reducing valve (39).

    摘要翻译： 公开了一种用于多用途车辆，特别是农用拖拉机的液压系统，用于向压力介质​​供应初级和/或辅助压力介质消耗器（6,11,12），包括泵（1），其压力和流量被控制为 通过压力和流量控制器（13）对压力介质消耗器的负载压力的功能，当辅助压力介质消耗器（11,12）正在操作时，与实际负载压力相比，通过放大器装置报告较高的负载压力 。 为了获得致动的辅助压力媒体消费者的快速响应，建议放大器装置（29）由比例可控的减压阀（39）组成。

    Outlet metering load-sensing circuit
    17.
    发明授权
    Outlet metering load-sensing circuit 失效
    出口计量负载感应电路

    公开(公告)号：US4510751A

    公开(公告)日：1985-04-16

    申请号：US370887

    申请日：1982-04-22

    申请人： Alan D. Jackson

    发明人： Alan D. Jackson

    IPC分类号： F15B11/05 ,  F16H39/46

    CPC分类号： F15B11/055 ,  F15B2211/20553 ,  F15B2211/252 ,  F15B2211/253 ,  F15B2211/30525 ,  F15B2211/355 ,  F15B2211/605 ,  F15B2211/651

    摘要： A meter-out load sensing hydraulic system controlling one or more motors, supplied by a variable displacement pump through a directional control valve. The compensating means of the pump senses pressure and flow on the discharge or return side of the motor to determine the pump cam plate position. The signal line connecting this discharge side of the motor to the compensating means is also supplied with a low pressure signal flow which causes the pump to standby at a low pressure level in a neutral valve position or when metering down a gravity load.

    摘要翻译： 控制一个或多个电动机的出口负载感测液压系统，由可变排量泵通过方向控制阀提供。 泵的补偿装置感测电动机的排放或返回侧的压力和流量，以确定泵凸轮板位置。 将电动机的排出侧连接到补偿装置的信号线还具有低压信号流，其使得泵在中性阀位置处的低压级别或者在重力负载下计量时待机。

    Hydraulic system for construction equipment
    19.
    发明授权
    Hydraulic system for construction equipment 有权

    公开(公告)号：US09618017B2

    公开(公告)日：2017-04-11

    申请号：US14390328

    申请日：2012-04-17

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee

    IPC分类号： F15B11/05 ,  E02F9/22 ,  E02F9/12 ,  F15B11/16

    CPC分类号： F15B11/055 ,  E02F9/123 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/165 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/253 ,  F15B2211/605 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/65 ,  F15B2211/651 ,  F15B2211/6652 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/78

    摘要： A hydraulic system for a construction machine having a pressure compensation valve is disclosed, which improves operability when a combined operation of a swing device and an attachment is performed. The hydraulic system includes a hydraulic pump, attachment and swing operation devices, an attachment actuator and a swing motor connected to the hydraulic pump, a first control valve controlling hydraulic fluid being supplied to the actuator, a second control valve controlling hydraulic fluid being supplied to the swing motor, a check valve installed on a flow path for detecting load pressures of the actuator to take a maximum pressure of the load pressures, a first pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of a discharge flow path of the first control valve, a second pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of the discharge flow path of the second control valve, a maximum load pressure sensor detecting the pressure of a maximum load sensing pressure line, and a control unit controlling a discharge flow rate of the hydraulic pump, wherein the system is configured so that the swing load pressure is not connected to the first pressure compensation valve on the attachment side when a combined operation of the swing device and the attachment is performed.

    Hydraulic System
    20.
    发明申请
    Hydraulic System 有权
    液压系统

    公开(公告)号：US20110011071A1

    公开(公告)日：2011-01-20

    申请号：US12838166

    申请日：2010-07-16

    申请人： Harishchandra M. Narotham ,  Martin R. Smith

    发明人： Harishchandra M. Narotham ,  Martin R. Smith

    IPC分类号： F15B13/00

    CPC分类号： F15B11/165 ,  E02F3/963 ,  E02F9/2203 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296 ,  F15B11/166 ,  F15B2211/20538 ,  F15B2211/20553 ,  F15B2211/50536 ,  F15B2211/5753 ,  F15B2211/6051 ,  F15B2211/6057 ,  F15B2211/6346 ,  F15B2211/651 ,  F15B2211/654

    摘要： A hydraulic system for an operator controlled machine, the system including at least one actuator for moving a machine component, a source of pressurized fluid for delivering pressurized fluid at a system pressure to a control valve which is operable under operator control, to control the flow of fluid from the source to the actuator at a load pressure, along a load pressure path, a flow control apparatus for controlling the flow of fluid from the source to the control valve, the flow control apparatus including an actuating part which is biased by a resilient device to a condition in which the flow control apparatus provides for a maximum flow of fluid to the control valve, actuating part movement by the resilient device being resisted by system pressure fluid and being supported by fluid at a control pressure, the control pressure being derived from the load pressure, and wherein the system includes a pressure control device to which the load pressure is communicated, the pressure control device being operated under operator control either to deliver the control pressure to the flow control device at load pressure or a modified pressure which is less than the load pressure.

    摘要翻译： 一种用于操作员控制机器的液压系统，该系统包括用于移动机器部件的至少一个致动器，用于将系统压力下的加压流体输送到可在操作员控制下操作的控制阀的加压流体源，以控制流量 在负载压力下沿着负载压力路径从流体到致动器的流体控制装置，用于控制从源到控制阀的流体流动的流量控制装置，流量控制装置包括一个致动部件，该致动部件被一个 弹性装置到达流动控制装置提供流体到控制阀的最大流量的状态，由弹性装置致动部件被系统压力流体抵抗并由控制压力下的流体支撑，控制压力为 来自所述负载压力，并且其中所述系统包括压力控制装置，所述负载压力与所述压力控制装置连通， 控制装置在操作员控制下操作，以便在负载压力或小于负载压力的改进压力下将控制压力传递到流量控制装置。