Hydraulic device for controlling a hydraulic-fluid flow
    1.
    发明授权
    Hydraulic device for controlling a hydraulic-fluid flow 失效
    用于控制液压流体的液压装置

    公开(公告)号:US6065386A

    公开(公告)日:2000-05-23

    申请号:US101581

    申请日:1998-07-10

    Abstract: The invention concerns a hydraulic device for controlling the hydraulic-fluid flow to and from a single-acting cylinder (3) on which a load (4) acts. Located between a pump (1) and the cylinder (3) is a controlled valve array (5) which, together with a controlled on-off valve (9) which in one position allows hydraulic fluid to pass back into the reservoir (2), controls the flow of hydraulic fluid to and from the cylinder (3). In order to be able to lift the piston slowly and at constant speed in the cylinder (3), independently of the load (4) acting on the piston, the invention calls for a throttle (6) and a non-return valve (7) to be connected in series, by-passing the valve array (5). A pressure regulator (10) maintains the pressure difference through the throttle (6) constant and feeds the fluid not required to maintain the pressure difference through the throttle (6) back to the reservoir (2). When the load (4) is lifted slowly, the valve array (5) is switched into a position in which the flow of hydraulic fluid to the cylinder (3) is blocked, and the cut-off valve (9) blocks the connection between the throttle (6) and the reservoir (2). The invention is particularly suitable for use in controlling the lifting gear of a mobile machine such as a stacker truck or an agncultural machine.

    Abstract translation: PCT No.PCT / DE96 / 02504 Sec。 371日期:1998年7月10日 102(e)1998年7月10日PCT 1996年12月21日PCT PCT。 公开号WO97 / 28373 日期1997年8月7日本发明涉及一种用于控制来自负载(4)作用于其上的单作用气缸(3)的液压流体流量的液压装置。 位于泵(1)和气缸(3)之间的是受控阀阵列(5),该控制阀阵列(5)与受控的开关阀(9)一起位置允许液压流体返回到储存器(2) 控制液压流体与气缸(3)的流动。 为了能够独立于作用在活塞上的负载(4)而在气缸(3)中缓慢提升活塞并且以恒定的速度提升活塞,本发明要求节流阀(6)和止回阀(7) )串联连接,旁通阀阵列(5)。 压力调节器(10)通过节流阀(6)保持压力差恒定,并且将不需要的流体供给到通过节气门(6)保持压力差回到储存器(2)。 当负载(4)缓慢提升时,阀组(5)被切换到液压缸(3)的液压流动被阻挡的位置,截止阀(9) 节气门(6)和储存器(2)。 本发明特别适用于控制诸如堆垛车或农机的移动机械的起重装置。

    Control-circuit throttle valve
    2.
    发明授权
    Control-circuit throttle valve 失效
    控制回路节流阀

    公开(公告)号:US4519296A

    公开(公告)日:1985-05-28

    申请号:US608265

    申请日:1984-05-08

    Applicant: Heinz Schulte

    Inventor: Heinz Schulte

    CPC classification number: F15B13/02

    Abstract: A control-circuit throttle valve assembly coupled to and regulating a hoisting unit correcting element or final control element of a tractor via a mechanical coupling including a throttle housing, a flow restrictor throttling body shiftably mounted in the throttle housing, the throttling body having a guiding edge portion, a control conduit with a circular cross-section communicating with the throttle housing, the control conduit including a pass-through area, and a run-off conduit communicating with the throttle housing, the guiding edge portion at least partially closing off communication between the control circuit and the throttle housing through the pass-through area upon shifting of the throttling body within the throttle housing such that the pass-through area is throttled as a linear function during operation of the hoisting unit.

    Abstract translation: 一种控制回路节流阀组件,其经由包括节气门壳体的机械联接器联接到和调节牵引车的升降单元校正元件或最终控制元件,所述机械联轴器可移动地安装在节气门壳体中,节流体具有引导 边缘部分,具有与节气门壳体连通的圆形横截面的控制管道,控制管道包括通过区域和与节气门壳体连通的流出管道,引导边缘部分至少部分地封闭通信 在节流壳体内的节流体移动时通过通过区域在控制电路和节气门壳体之间,使得通过区域在起重单元的操作期间作为线性功能被节流。

    Apparatus for controlling an adjustable member
    3.
    发明授权
    Apparatus for controlling an adjustable member 失效
    用于控制可调节构件的装置

    公开(公告)号:US4677899A

    公开(公告)日:1987-07-07

    申请号:US832634

    申请日:1986-02-25

    CPC classification number: A01B63/1117

    Abstract: A fluid operated positioning apparatus includes a multi-position valve operated in response to differential pressure in a fluid control circuit. The control circuit includes two adjustable throttles in series, the junction between the throttles being connected to a control device at one end of the valve. Particular relationships for the throttles are disclosed. Other embodiments include additional throttles for improved control with low pressures.

    Abstract translation: 流体操作的定位装置包括响应于流体控制电路中的压差操作的多位置阀。 控制电路包括串联的两个可调节流管,节流阀之间的连接处连接到阀的一端的控制装置。 公布了节流阀的特殊关系。 其他实施例包括用于改善低压控制的附加节流阀。

    Hydraulic pressure-relief valve
    4.
    发明授权
    Hydraulic pressure-relief valve 失效
    液压减压阀

    公开(公告)号:US4587988A

    公开(公告)日:1986-05-13

    申请号:US649511

    申请日:1984-09-12

    Applicant: Heinz Schulte

    Inventor: Heinz Schulte

    Abstract: A pressure-relief valve has a housing forming a chamber extending along an axis and a valve seat centered on the axis and subdividing the chamber into an outer high-pressure compartment and an inner low-pressure compartment. The seat defines generally the only fluid-communication path between the compartments. A pump and a load can be connected to the high-pressure compartment and a sump to the low-pressure compartment. A valve body is formed with a central radially outwardly open main groove, an outer face exposed in the high-pressure compartment, an inner face exposed in the low-pressure compartment, a radially outwardly open control groove offset axially inward from the main groove toward the inner face, and a diametrally throughgoing control bore at the main and control grooves. The body is axially displaceable through the seat between a closed position substantially blocking the seat with the main groove and control bore axially offset therefrom and an open position axially offset toward the low-pressure compartment from the closed position and with the main groove and control bore at the seat for flow through the main groove and seat between the compartments, and through an intermediate position between the open and closed positions and with the control bore at the seat for flow through the control bore and control groove between the compartments. A spring urges the valve body axially outward toward the high-pressure compartment into the closed position.

    Abstract translation: 减压阀具有形成沿轴线延伸的腔室的壳体和以轴线为中心的阀座,并将腔室细分成外部高压室和内部低压室。 座椅通常限定隔室之间的唯一的流体连通路径。 泵和负载可以连接到高压隔室和一个到低压隔间的贮槽。 阀体形成有中心的径向向外开放的主槽,暴露在高压隔室中的外表面,暴露在低压室中的内表面,径向向外打开的控制槽,其从主槽向轴向向内偏移 内表面,以及在主槽和控制槽处的直径通过的控制孔。 主体可以通过座椅轴向移动,该关闭位置基本上阻挡座椅与主槽和从其轴向偏移的控制孔,以及从关闭位置向轴向偏移朝向低压隔室的打开位置,以及主槽和控制孔 在座椅处,用于流过主槽和隔间之间的座椅,并且穿过打开和关闭位置之间的中间位置以及座椅处的控制孔,用于流过控制孔和隔间之间的控制槽。 弹簧将阀体轴向向外朝向高压隔室进入关闭位置。

    Hydraulic positioner with feedback device
    5.
    发明授权
    Hydraulic positioner with feedback device 失效
    带反馈装置的液压定位器

    公开(公告)号:US4242942A

    公开(公告)日:1981-01-06

    申请号:US21818

    申请日:1979-03-19

    CPC classification number: F15B9/08 A01B63/1117 Y10T137/86694

    Abstract: A hydraulic control arrangement with a feedback device for positioning an implement comprises a positioner including a fluid operated cylinder and piston unit, the piston of which is connected by a plurality of linkage elements to the implement. A first pump delivers through a pressure line fluid under pressure into the cylinder. A two-port three-position valve is interposed in the pressure line movable from a neutral position in which the fluid fed by the first pump is directed to a reservoir, to two operating positions to opposite sides of the neutral position, and in which one of the operating positions fluid fed by the first pump passes into the cylinder and in the other of the operating positions fluid from the cylinder can flow to the reservoir. A pair of pilot chambers are arranged at opposite ends of the valve for moving the latter from the neutral to either of the working positions. A second pump provides fluid under pressure for operating the valve. A first control line leads from the second pump to one of the pilot chambers and a fixed throttle cooperating with an operator adjustable throttle is located in the first control line. The arrangement includes also a feedback device comprising a second control line leading from the second pump to the other pilot chamber and a second fixed throttle cooperating with a second adjustable throttle is located in the second contial line. The flow-through cross-section of the second adjustable nozzle is adjusted by engagement with one of the linkage elements.

    Abstract translation: 具有用于定位工具的反馈装置的液压控制装置包括定位器,其包括流体操作的气缸和活塞单元,其活塞通过多个连接元件连接到工具。 第一个泵通过压力下的压力流体输送到气缸中。 双端口三位置阀插入压力线中,该中压位置可将第一泵供给的流体引导到储存器,而在中性位置可移动到位于中立位置相对侧的两个操作位置, 由第一泵送入的流体的工作位置进入气缸,而在另一个操作位置,来自气缸的流体可以流到储存器。 一对引导室布置在阀门的相对端部,用于将阀门从空档移动到任一工作位置。 第二个泵提供压力下的流体来操作阀门。 第一控制线从第二泵引导到一个引导室,并且与操作者可调节的节流阀配合的固定节气门位于第一控制线中。 该装置还包括反馈装置,该反馈装置包括从第二泵引导到另一引导室的第二控制线,并且与第二可调节流阀配合的第二固定节流阀位于第二连接线中。 第二可调节喷嘴的流通横截面通过与一个连接元件的接合来调节。

    Device for the transformation of steering control signals from one
coordinate system to another
    6.
    发明授权
    Device for the transformation of steering control signals from one coordinate system to another 失效
    转向控制信号从一个坐标系转换到另一个坐标系的装置

    公开(公告)号:US4080655A

    公开(公告)日:1978-03-21

    申请号:US731940

    申请日:1976-10-13

    CPC classification number: F41G7/20 G05D1/108

    Abstract: A system for the transformation of steering control signals from a plane cartesian coordinate system to a polar coordinate system is disclosed. The system is designed to be self-contained on board a missile. The system is synchronized with roll position, by virtue of a start pulse and generates pulse increments corresponding to increments of roll angle change. A digital counter counts pulses which are referenced to the missile. The counted pulses are supplied to read-only memories which are pre-programmed with sine and cosine information. A pair of digital-to-analog converters respond to the outputs of the memories. An appropriate Y or Z steering signal is supplied to the converters for multiplication. The outputs of the converters are summed and then supplied to the missile steering device. Means for taking into account the launch of a missile from a mobile launch site is disclosed.

    Abstract translation: 公开了一种用于将转向控制信号从平面笛卡尔坐标系转变为极坐标系的系统。 该系统设计为在导弹上自备。 系统通过起始脉冲与滚动位置同步,并产生与滚动角变化增量对应的脉冲增量。 数字计数器计数参考导弹的脉冲。 计数脉冲被提供给只用正弦和余弦信息预编程的只读存储器。 一对数模转换器响应存储器的输出。 适当的Y或Z转向信号被提供给转换器进行乘法。 将转换器的输出相加,然后提供给导弹转向装置。 披露了考虑到从移动发射场发射导弹的手段。

    Control switching arrangement for a hydraulic power lift
    7.
    发明授权
    Control switching arrangement for a hydraulic power lift 失效
    液压动力升降机的控制切换装置

    公开(公告)号:US4835966A

    公开(公告)日:1989-06-06

    申请号:US062621

    申请日:1987-06-16

    CPC classification number: F15B13/015

    Abstract: A control switching arrangement for a hydraulic power lift control system comprises a power lift control valve which is controlled via control lines in a low pressure section. The main hydraulic section is controlled by the said control valve via a check valve which is hydraulically openable, at least for carrying out lowering movement by the power lift. The check valve is opened via the said control valve itself, which furnishes the switching line a pressure generally equal to the circulation pressure of the main hydraulic section. Further, means are provided whereby, in the switching state corresponding to lowering movement of the power lift, the circulation pressure of the main hydraulic section can be increased. With this control system the low pressure control section is simplified, and energy losses in the control system are kept as low as possible.

    Abstract translation: 用于液压动力升降控制系统的控制切换装置包括通过低压段中的控制线控制的动力提升控制阀。 主液压部分由所述控制阀通过可液压打开的止回阀控制,至少用于通过动力升降机进行下降运动。 止回阀通过所述控制阀本身打开,所述控制阀本身为开关管提供与主液压部分的循环压力大致相等的压力。 此外,提供了这样的装置,其中,在与动力升降的下降运动相对应的开关状态下,可以增加主液压部分的循环压力。 利用该控制系统,低压控制部分被简化,并且控制系统中的能量损失保持尽可能低。

    Seal assembly for pivotal rod
    8.
    发明授权
    Seal assembly for pivotal rod 失效
    枢轴杆密封组件

    公开(公告)号:US4522414A

    公开(公告)日:1985-06-11

    申请号:US649732

    申请日:1984-09-12

    Applicant: Heinz Schulte

    Inventor: Heinz Schulte

    CPC classification number: F16J15/52

    Abstract: The assembly is used with a support having a flat surface and formed with a bore extending generally parallel to but beneath the surface and with a passage extending from the bore to the surface, with a control element in the bore and pivotal therein about an axis generally parallel to the surface, and with a control rod projecting from the element through the passage beyond the surface. This rod is connected to the element and pivots therewith about the axis through an arc on pivoting of the element in the bore about the axis. The assembly comprises an elastomeric annular cuff having an inner periphery tightly engaging and secured against movement on the rod and an outer periphery engaging and slidable on the surface all around the passage and dimensioned to engage the surface all around the passage in any position of the rod. This cuff is prestressed generally parallel to the rod between its peripheries to press at the outer periphery against the surface. Thus as the rod pivots the periphery slides on the surface while remaining in sealing contact therewith. As a result a dust-tight seal is created which allows the rod to move very freely, either pivoting or rotating.

    Abstract translation: 该组件与具有平坦表面的支撑件一起使用,并且形成有大致平行于表面并且在表面下方延伸的孔,并且具有从孔延伸到表面的通道,孔中的控制元件和围绕轴线枢转的孔 平行于表面,以及控制杆从元件突出通过超过表面的通道。 该杆连接到元件,并且通过围绕轴线在孔中的元件枢转时围绕轴线绕轴线枢转。 组件包括弹性体环形箍,其具有紧密接合并固定在杆上的内周边,以及固定在所述通道周围的表面上的可滑动的外周边,并且尺寸设计成能够在杆的任何位置 。 该袖带预应力大致平行于其周边之间的杆,以在外周面压靠表面。 因此当杆枢转时,周边在与表面密封接触的同时在表面上滑动。 因此,产生了防尘密封,这使得杆能够非常自由地移动,或者枢转或旋转。

    Pressure container for two hydraulic circuits
    9.
    发明授权
    Pressure container for two hydraulic circuits 失效
    两个液压回路的压力容器

    公开(公告)号:US4518010A

    公开(公告)日:1985-05-21

    申请号:US447625

    申请日:1982-12-06

    Abstract: A suction container for two hydraulic circuits, particularly for a steering circuit and a control circuit has a housing lower portion closed with a cover. A suction tube is inserted into the housing lower portion, which tube is connected to a first consumer line. The container also includes connections which are in communication with a second consumer line and with a fluid supply container. During operation the suction container is under predetermined pressure. A filter device is disposed in the cover before the connection to the second consumer line. A pressure-limiting valve and a reverse valve openable into the container housing are also mounted in the cover.

    Abstract translation: 用于两个液压回路的抽吸容器,特别是用于转向回路和控制回路的吸入容器具有用盖封闭的壳体下部。 吸入管插入壳体下部,该管连接到第一消耗线。 容器还包括与第二消费者线路和流体供应容器连通的连接。 在操作期间,抽吸容器处于预定压力下。 在连接到第二消费者线路之前,将过滤装置设置在盖子中。 一个限位阀和一个可打开到容器壳体中的反向阀也安装在盖子中。

    Control circuit throttling valve
    10.
    发明授权
    Control circuit throttling valve 失效
    控制电路节流阀

    公开(公告)号:US4421012A

    公开(公告)日:1983-12-20

    申请号:US234433

    申请日:1981-02-13

    CPC classification number: F15B13/02

    Abstract: A control circuit throttling valve provided as a controlled dimension receiver in a hydraulic circuit for the control of a final control element, particularly for the control of a lifting unit of a tractor. The valve performs a receiver function under control of a mechanical coupling coupled to a moving part of the final control element which changes the valve throttling section and is adjustable and includes a casing having a control connection and a discharge connection and a movable throttling body provided in the casing in relation to the control connection and the discharge connection such that upon linear or rotational movement of the body it is possible to independently derive an adjusting function and a receiving function.

    Abstract translation: 一种控制电路节流阀,其设置在用于控制最终控制元件的液压回路中的受控尺寸接收器,特别是用于控制拖拉机的提升单元。 该阀在与最终控制元件的移动部分耦合的机械联接器的控制下执行,该机械联接件改变阀节流部分并且是可调节的,并且包括具有控制连接和排出连接的壳体以及设置在其中的可移动节流体 壳体相对于控制连接和排放连接,使得在主体的线性或旋转运动时,可以独立地导出调节功能和接收功能。

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