PRESSURE-LIMITING VALVE
    1.
    发明申请
    PRESSURE-LIMITING VALVE 审中-公开
    泄压阀

    公开(公告)号:WO2016128104A8

    公开(公告)日:2017-06-29

    申请号:PCT/EP2016000038

    申请日:2016-01-09

    Abstract: A pressure-limiting valve with feed function, comprising a valve housing (20) having at least two connection points, in particular in the form of a working connection (A) and a tank connection (T), and having a spring-loaded pressure-limiting valve piston (22) which is mounted such as to be longitudinally movable in the valve housing (20), and having a spring-loaded non-return valve piston (56) for the implementation of the feed function, is characterized in that the non-return valve piston (56) is designed as a hollow piston and is mounted such as to be longitudinally movable in the valve housing (20).

    Abstract translation: 具有抗气蚀,其包括在工作接口(A)的形式,具有至少两个连接点的阀壳体(20),尤其是压力释放阀和具有阀壳体(20)引导的储罐连接件(T)和可纵向移动,弹簧加载的压力释放阀活塞(22),并用一个 弹簧加载的止回阀活塞(56),用于实现抗气蚀的,其特征在于,设计成空心活塞和阀壳体(20)的单向阀活塞(56)被引导到纵向移动。

    REDUCING DIG FORCE IN HYDRAULIC IMPLEMENTS
    2.
    发明申请
    REDUCING DIG FORCE IN HYDRAULIC IMPLEMENTS 审中-公开
    减少液压实施中的大力

    公开(公告)号:WO2015017334A1

    公开(公告)日:2015-02-05

    申请号:PCT/US2014/048443

    申请日:2014-07-28

    Abstract: In order to avoid cavitation in a boom cylinder (108) head end (152) at the beginning of a dig cycle, fluid from an alternate source (148, 188) is supplied to the head end (152) before or in addition to fluid supplied by the main boom-up hydraulic circuit (134, 156). In one embodiment, an electronic hydraulic valve (184, 202), related sensors (274), and control system (190) determines the beginning of a dig operation and uses fluid at an intermediate pressure to rapidly provide fluid to a boom (108) head end (152) cylinder to prevent voiding or cavitation before fluid under high pressure from the main pump (132) can be brought to the cylinder (108). An on/off fluid switch (184, 202) is activated early in a dig operation to address low pressure at the boom cylinder head end (152) and provide an alternate path for fluid into the cylinder (108) in reaction to the boom (106) being lifted by a motion of the stick (110) and bucket (114) in contact with the work surface (104).

    Abstract translation: 为了避免在挖掘循环开始时在动臂缸(108)头端(152)中的气蚀,来自替代源(148,188)的流体在流体之前或者除流体之外被提供给头端(152) 由主动臂上升液压回路(134,156)供给。 在一个实施例中,电子液压阀(184,202),相关传感器(274)和控制系统(190)确定挖掘操作的开始并且使用中间压力的流体快速地向悬臂(108)提供流体, 头端(152)气缸,以防止在来自主泵(132)的高压下的流体可以被带到气缸(108)之前的空洞或空化。 在挖掘操作中早期启动开/关流体开关(184,202)以解决悬臂液压缸头端(152)处的低压,并且提供用于与悬臂反应的流体进入气缸(108)的备用路径 106)通过与工作表面(104)接触的杆(110)和铲斗(114)的运动而被提升。

    HYDRAULISCHE VENTILANORDNUNG
    3.
    发明申请
    HYDRAULISCHE VENTILANORDNUNG 审中-公开
    液压阀装置

    公开(公告)号:WO2007104391A1

    公开(公告)日:2007-09-20

    申请号:PCT/EP2007/001051

    申请日:2007-02-08

    CPC classification number: F15B13/0403 F15B21/047 Y10T137/2605

    Abstract: Die Erfindung betrifft eine hydraulische Ventilanordnung, die insbesondere für eine mobile Arbeitsmaschine verwendet wird und die ein Ventilgehäuse (10) mit einem Zulauf kanal (34) , mit einem Ablauf kanal (42) und mit einem Verbraucherkanal (39) sowie eine Ventilbohrung (11) aufweist, die die Kanäle anschneidet. In der Ventilbohrung (11) ist von einer Neutralstellung aus in zumindest die eine Richtung in eine Arbeitsstellung ein Ventilschieber (12) axial bewegbar, mit dem die fluidischen Verbindungen zwischen den Kanälen steuerbar sind. Außerdem ist ein Druckbegrenzungs- und Einspeiseventil (45, 47) vorhanden, mit dem durch gedrosseltes Ablassen von Druckfluid in den Ablaufkanal (42) der Druck in dem Verbraucherkanal (39) begrenzbar und Druckfluid vom Ablauf kanal (42) in den Verbraucherkanal (39) einspeisbar ist. Der Erfindung liegt die Aufgabe zugrunde, eine derartige hydraulische Ventilanordnung so zu gestalten, dass niedrige Herstellkosten und eine kleine Baugröße möglich sind. Das angestrebte Ziel wird erfindungsgemäß dadurch erreicht, dass das Druckbegrenzungs- und Einspeiseventil (45, 47) in einem Hohlraum des Ventilschiebers (12) untergebracht ist.

    Abstract translation: 本发明涉及一种特别用于移动工作机的液压阀组件,以及与入口通道(34)与一个排出通道(42)和一个消费者导管(39)的阀壳体(10)和一阀孔(11) 已经通过渠道长大。 在从轴向可移动的在至少一个方向处于工作位置的中立位置的阀孔(11),滑阀(12)与该通道之间的流体连接可以被控制。 此外,限压和进料阀(45,47)是本可以与由限制节流压力流体的引流到流动通道(42)在消费导管(39)中的压力和压力流体从消费者导管的流动通道(42)(39) 进料。 本发明的目的是基于是使得低的制造成本和小尺寸是可能设计这样的液压阀装置。 所期望的目标被创造性,在所述阀芯(12)的空腔中的压力限制和供给阀(45,47)被容纳实现英寸

    HYDRAULIC VALVE SYSTEM
    4.
    发明申请
    HYDRAULIC VALVE SYSTEM 审中-公开
    液压阀系统

    公开(公告)号:WO02053880A2

    公开(公告)日:2002-07-11

    申请号:PCT/US2001/049556

    申请日:2001-12-27

    Abstract: A valve manifold (54) controls hydraulic flow in a hydraulic system for an air compressor unit. The manifold (54) includes a pressure relief valve (1), a cold oil bypass valve (2), a proportional flow valve (3), and an anti-cavitation valve (4). The pressure relief valve (1) diverts flow away from a fan motor (30) when the pressure of hydraulic fluid within the hydraulic system is above a predetermined level. The cold oil bypass valve (2) diverts flow away from a hydraulic cooler (42) when the temperature of hydraulic fluid within the hydraulic system is below a predetermined level. The proportional flow valve (3) diverts flow away from the fan motor (30) when the temperature of hydraulic fluid within the hydraulic system is below a predetermined level. The anti-cavitation valve (4) prevents pressure build up within the hydraulic system when the air compressor unit is shut off.

    Abstract translation: 本发明涉及一种控制空气压缩机装置的液压回路中的流体流动的阀歧管。 该歧管包括安全阀,冷油旁通阀,比例流量阀和防空化阀。 当回路内的液压流体的压力超过预定水平时,安全阀使流动离开风扇马达。 当回路中的液压流体的温度低于预定水平时,冷油旁路阀允许油的流动绕过液压冷却器。 当回路的液压流体温度低于预定水平时,比例流量阀绕过离开风扇马达的流量,并且防空化阀防止压力积聚在液压回路内 当空气压缩机断开时。

    DRUCKLUFT-SYSTEM FÜR EIN NUTZFAHRZEUG UND VERFAHREN ZUM BETREIBEN EINES DRUCKLUFT-SYSTEMS

    公开(公告)号:WO2019115045A1

    公开(公告)日:2019-06-20

    申请号:PCT/EP2018/076723

    申请日:2018-10-02

    Applicant: WABCO GMBH

    CPC classification number: F15B21/048 B01D53/26 B60T17/004 F15B21/047

    Abstract: Die Erfindung betrifft ein Druckluft-System (1) eines Nutzfahrzeugs und ein Verfahren zu dessen Steuerung. Hierbei werden elektropneumatischen Ventile (16, 18) mit mindestens einem ersten elektrischen Steuersignal (S1) und einem zweiten elektrischen Steuersignal (S2) angesteuert und die Druckluftaufbereitungsanlage (2) durch die elektrischen Steuersignale (S1, S2) in folgende Betriebsmodi eingestellt: einen Förder-Modus (I) zur Aufnahme von Druckluft (13) des Kompressors (3) über den Drucklufteingang (8a) durch den Lufttrockner (12) zu dem Druckluftausgang (8b), einen Ruhe-Modus (II) zur Ausgabe eines pneumatischen Steuersignals über den pneumatischen Steuerausgang (8c) zum Ausschalten des Kompressors (3), einen Regenerations-Modus (3) zur Einleitung eines Regenerations-Luftstroms von dem Druckluftausgang (8b) durch den Lufttrockner (12) zu dem Entlüftungs-Ausgang (8d) und Ausgabe des pneumatischen Steuersignals über den pneumatischen Steuerausgang (8c) zum Ausschalten des Kompressors (3). Zur Vermeidung und Beseitigung von Emulsionen in der Druckluftaufbereitungsanlage (2) ist vorgesehen, dass während des Förder-Modus (I) Förderdaten (30) ermittelt werden und die Druckluftaufbereitungsanlage (2) in Abhängigkeit der Förderdaten (30) in einen Anti-Emulsions-Modus (IV) einzustellen zur Aufnahme von Druckluft (13) des Kompressors (3) an dem Drucklufteingang (8a) und Ausgabe an den Entlüftungs-Ausgang (8d), ohne Ausgabe des pneumatischen Steuersignals über den pneumatischen Steuerausgang (8c), insbesondere auch unabhängig von einer Außentemperatur.

    VALVE WITH GRADUAL FLOW AREA CHANGES
    6.
    发明申请

    公开(公告)号:WO2018125321A1

    公开(公告)日:2018-07-05

    申请号:PCT/US2017/051300

    申请日:2017-09-13

    Abstract: An example valve includes: (i) a valve body defining a longitudinal cavity, where the valve body includes a supply inlet and an operating outlet; (ii) a cage disposed in the longitudinal cavity, where the cage includes (a) a first opening fluidly coupled to the supply outlet, and (b) a second opening fluidly coupled to the operating outlet; and (iii) a spool mounted within the cage and configured to move axially therein. When the valve is actuated, the spool moves within the cage to form a gap, thereby allowing pressurized fluid to flow from the supply inlet through the first opening, the gap, and the second opening to the operating outlet. A flow area defined around an exterior peripheral surface of the spool changes upstream from the gap at a first rate, and changes downstream from the gap at a second rate that is different from the first rate.

    COMPOSITIONS AND METHODS FOR GENERATING CAVITATION RESISTANCE
    7.
    发明申请
    COMPOSITIONS AND METHODS FOR GENERATING CAVITATION RESISTANCE 审中-公开
    用于产生耐腐蚀性的组合物和方法

    公开(公告)号:WO2014165121A1

    公开(公告)日:2014-10-09

    申请号:PCT/US2014/024480

    申请日:2014-03-12

    CPC classification number: F02C7/222 B63H1/18 F02M2200/04 F15B21/047

    Abstract: A method for generating cavitation resistance in a liquid, a portion of which can be in contact with a surface is disclosed. The disclosed method can be carried out by pressure-treating the liquid, the liquid portion in contact with the surface, and/or the surface for a sufficient time to develop resistance to cavitation. The disclosed method can be carried out when the surface is made of a material having a surface roughness that is greater than the rc of the liquid. Suitable surfaces include borosilicate glass, drawn glass, copper, lead, steel, cast iron, metal alloys and concrete. The surfaces can be ship and boat propeller surfaces, the interior of fuel lines and fuel storage containers or any other surface where cavitation can occur.

    Abstract translation: 公开了一种在液体中产生气蚀阻力的方法,其中一部分可与表面接触。 所公开的方法可以通过对液体,与表面接触的液体部分和/或表面进行压力处理足够的时间来产生耐空化作用。 所公开的方法可以在表面由表面粗糙度大于液体的rc的材料制成时进行。 合适的表面包括硼硅酸盐玻璃,拉制玻璃,铜,铅,钢,铸铁,金属合金和混凝土。 表面可以是船和船螺旋桨表面,燃料管线的内部和燃料储存容器或任何其他可能发生气蚀的表面。

    DEVICE AND METHOD IN RESPECT OF A ROCK DRILLING MACHINE AND ROCK DRILLING MACHINE
    8.
    发明申请
    DEVICE AND METHOD IN RESPECT OF A ROCK DRILLING MACHINE AND ROCK DRILLING MACHINE 审中-公开
    岩石钻机和岩石钻孔机的设备及方法

    公开(公告)号:WO2014003626A1

    公开(公告)日:2014-01-03

    申请号:PCT/SE2013/050621

    申请日:2013-05-30

    Inventor: JONSSON, Per

    CPC classification number: E21B1/02 E21B7/025 F15B21/047 F16J15/002 F16J15/56

    Abstract: A device for a hydraulic rock drilling machine (1) for the protection of a piston seal unit (6) for sealing between a percussive piston (4) and a cylinder in a housing (2) of the rock drilling machine, wherein a piston guide (5) is positioned between the piston seal unit (6) and a working space in the cylinder. Between the piston guide (5) and the piston seal unit (6) there is arranged a surrounding ring- shaped inwardly open chamber (9), which is formed for receiving a hydraulic liquid volume. A hydraulic supply flow channel (12,13) for hydraulic liquid supply is connected to said chamber (9). The invention also concerns a rock drilling machine and a method.

    Abstract translation: 一种用于保护活塞密封单元(6)的用于液压凿岩机(1)的装置,用于密封冲击活塞(4)和钻岩机的壳体(2)中的气缸,其中活塞导向件 (5)位于活塞密封单元(6)和气缸中的工作空间之间。 在活塞导向件(5)和活塞密封单元(6)之间布置有环形的向内开放的室(9),其形成用于接收液压液体体积。 用于液压液体供应的液压供应流道(12,13)连接到所述室(9)。 本发明还涉及一种凿岩机和一种方法。

    VARIABLE VOLUME RESERVOIR
    9.
    发明申请
    VARIABLE VOLUME RESERVOIR 审中-公开
    可变量储存器

    公开(公告)号:WO2009097117A1

    公开(公告)日:2009-08-06

    申请号:PCT/US2009/000551

    申请日:2009-01-28

    CPC classification number: F15B1/265 F15B21/047

    Abstract: A reservoir (112/212) for a hydraulic pump system includes a reservoir body (140/240), an inner wall (144/244) dividing an interior of the reservoir body into a first pressure chamber (148/248) and a second pressure chamber (152/252), and a one-way valve (156/256) connecting the first pressure chamber and the second pressure chamber. A piston assembly (180/280) forms a first cylinder portion (184a/284a) connected to the first pressure chamber and a second cylinder portion (184b/284b) that is vented. The piston is movable within the cylinder under the influence of a biasing member (192/292) to increase and decrease the overall volume of the first pressure chamber. The piston pressures a piston pump inlet (172/272) connected to the first pressure chamber and maintains a constant pressure within the first pressure chamber under a variety of piston pump operating conditions.

    Abstract translation: 用于液压泵系统的储存器(112/212)包括储存器主体(140/240),将储存器本体的内部分成第一压力室(148/248)的内壁(144/244)和第二压力室 压力室(152/252)和连接第一压力室和第二压力室的单向阀(156/256)。 活塞组件(180/280)形成连接到第一压力室的第一气缸部分(184a / 284a)和排出的第二气缸部分(184b / 284b)。 活塞在偏压构件(192/292)的影响下在气缸内可移动,以增加和减小第一压力室的总体积。 活塞压力连接到第一压力室的活塞泵入口(172/272),并且在各种活塞泵操作条件下在第一压力室内保持恒定的压力。

    FREELY ROTATABLE CLOSED GRAPPLE HEAD AND MACHINE USING SAME
    10.
    发明申请
    FREELY ROTATABLE CLOSED GRAPPLE HEAD AND MACHINE USING SAME 审中-公开
    FREELY ROTATABLE松开的头盖和使用它的机器

    公开(公告)号:WO2008085247A1

    公开(公告)日:2008-07-17

    申请号:PCT/US2007/025264

    申请日:2007-12-11

    CPC classification number: B66C3/16 B66C1/585 F15B21/047

    Abstract: A machine (10) includes a chassis (12) and a boom assembly (14). The boom assembly (14) is movable relative to the chassis (12). The machine (10) further includes a grapple assembly (16) suspended from the boom assembly (14). The grapple assembly (16) comprises a grapple head (18) fluidly connected to a first hydraulic circuit (57) for actuating the grapple head (18) to a grasping configuration, and a hydraulic motor (24) fluidly connected to a second hydraulic circuit (71) for rotating the grapple head (18). The second hydraulic circuit (71) includes a bypass valve (72). The bypass valve (72) has a first position configured to block a fluid flow between a first port (64) of the hydraulic motor (24) and a second port (66) of the hydraulic motor (24). The bypass valve (72) also has a second position configured to allow a fluid flow between the first port (64) of the hydraulic motor (24) and the second port (66) of the hydraulic motor (24). The bypass valve (72) allows the grapple head (18) to rotate freely when the grapple head (18) is in a grasping configuration.

    Abstract translation: 机器(10)包括底盘(12)和吊杆组件(14)。 动臂组件(14)可相对于底盘(12)移动。 机器(10)还包括从悬臂组件(14)悬挂的抓斗组件(16)。 抓斗组件(16)包括流体连接到第一液压回路(57)的抓斗头(18),用于将抓斗头(18)致动到抓握构型;以及液压马达(24),流体地连接到第二液压回路 (71),用于旋转抓斗头(18)。 第二液压回路71包括旁通阀72。 旁通阀(72)具有第一位置,其构造成阻挡液压马达(24)的第一端口(64)与液压马达(24)的第二端口(66)之间的流体流动。 旁通阀(72)还具有被配置为允许液压马达(24)的第一端口(64)和液压马达(24)的第二端口(66)之间的流体流动的第二位置。 当抓斗头(18)处于抓握构型时,旁通阀(72)允许抓钩头(18)自由旋转。

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