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    • 3. 发明申请
    • PRESSURE-REDUCING SEAT VALVE AND LOCKING CIRCUIT
    • 减压阀阀片和SPAN电路
    • WO2009127403A3
    • 2009-12-10
    • PCT/EP2009002752
    • 2009-04-15
    • BOSCH GMBH ROBERTFISCHER STEFFENLAUER PETER
    • FISCHER STEFFENLAUER PETER
    • G05D16/10
    • G05D16/10
    • The invention provides a pressure reducing seat valve and locking circuits. A pressure means may be supplied to a supply connection at a predetermined pressure by means of the pressure reducing valve in a seat valve configuration. The pressure reducing valve has a valve piston being movable opposite a seat surface that is disposed on a housing in a fixed manner, and which has a first control surface at which said valve piston is forced by the pressure in the supply connection in the sense of a locking movement against the seat surface, said valve piston being forced by way of a control spring in the sense of an opening movement, wherein the valve piston is forced in the sense of a locking movement by way of a second control surface subjected to the pressure in the supply connection. The pressure reducing function and a check valve may be integrated into such a seat valve for a pre-opening of the pressure means connection between the secondary pressure and the primary pressure. A locking circuit according to the invention having such pressure reducing valves and a directional seat valve enables the minimizing of the hydraulic power loss, and the reducing of the effort for changeable locking pressures.
    • 根据本发明的一个Druckreduziersitzventil和钳位电路提供与此有关。 通过减压阀在座椅设计压力介质可以从一个电源端被馈送以预定的压力的负载连接。 减压阀具有阀活塞,该活塞可相对于壳体固定的座移动,并具有第一控制表面,其所经受的负载端口中的压力抵靠座面和其在由控制弹簧在打开运动的感作用的闭合运动感, 其中,所述阀活塞在由在电源端的压力作用在关闭运动的感暴露的第二控制表面。 在这样的座阀,该压力限制功能和用于预打开所述低压流体连接部的止回阀可以在次级压力和初级压力之间集成在一起。 根据本发明的具有这样的减压阀和一个方向控制阀的钳位电路允许最小化所述液压功率损耗和减小在可变夹紧压力的努力。
    • 4. 发明申请
    • DAMPING NOZZLE ARRANGEMENT
    • LOSS喷嘴排列
    • WO03014603A3
    • 2003-05-30
    • PCT/DE0202664
    • 2002-07-19
    • BOSCH REXROTH AGLAUER PETERMEYER KARL
    • LAUER PETERMEYER KARL
    • A61M39/00F16K47/08
    • F16K47/08
    • The invention relates to a damping nozzle arrangement for hydraulic pressurizing medium in which a nozzle body (11) is placed inside a pressurizing medium channel (12). The nozzle body is provided with an axial boring (22), which starts from a front side (19)and does not completely pass through the nozzle body. The nozzle body is additionally provided with a radial boring (21) that connects the axial boring to an annular space (18) formed between the nozzle body and the pressurizing medium channel. Two nozzles having a rectangular cross-section are situated between the annular space and the pressurizing medium channel and they determine the throttling action of the damping nozzle arrangement (not shown). The invention provides a damping nozzle arrangement that is easy to produce even when requiring a high throttling action. Instead of both nozzles having a rectangular cross-section, the outside diameter of the nozzle body and the inside diameter of the pressurizing medium channel surrounding the same are provided so that an annular gap, which is delimited in an axial direction, is formed between the nozzle body and the pressurizing medium channel. The nozzle body is tightly held inside the pressurizing medium channel. Damping nozzle arrangements of this type are used for damping hydraulic systems that have a tendency to vibrate.
    • 在用于液压介质喷嘴体11的阻尼喷嘴组件被布置在压力介质通道12 喷嘴主体是从端面轴向的19孔22不完全渗透喷嘴主体设置有外向。 喷嘴主体另外设置有一个径向孔21连接与所述喷嘴主体和所述压力介质通道18环之间形成的空间的轴向孔 环空和流体通路之间的两个喷嘴被布置成与rechteckförmigern横截面确定所述阻尼喷嘴组件的节流作用。 它被赋予一个阻尼喷嘴组件其制造即使在大节流效应简单。 代替两个喷嘴具有矩形的横截面,所述喷嘴体和周围的压力介质通道的内径的外径的尺寸使得一个在所述喷嘴主体和所述压力介质通道之间在轴向上有限环形间隙形成。 喷嘴主体是在流体通道保持。 这种喷嘴组件被用于阻尼趋于摆动液压系统。
    • 6. 发明申请
    • PILOT-OPERATED PRESSURE SHUT-OFF VALVE
    • 先导式关闭
    • WO0236967A3
    • 2003-02-13
    • PCT/EP0112094
    • 2001-10-19
    • BOSCH REXROTH AGKRENZER GUENTERMEYER KARL JOSEFLAUER PETER
    • KRENZER GUENTERMEYER KARL JOSEFLAUER PETER
    • F16K3/24F15B1/027F15B11/08F16K31/363
    • F15B1/0275Y10T137/2625Y10T137/263Y10T137/2635Y10T137/7766Y10T137/777
    • The invention relates to a pilot-operated pressure shut-off valve with a main control piston (20), by means of which an inlet (12), which can introduce a pressure medium to a hydraulic system, is connected to a drain (13), on reaching an upper system limiting pressure and adopting a first switched position and is separated from said drain (13), on reaching a lower system limiting pressure and adopting a second switched position. The pressure shut-off valve has a pilot valve arrangement (11). On such a pressure shut-off valve, the pilot valve arrangement should be compact and of simple construction, in contrast to pilot valve arrangements on a pressure shut-off valve where the upper system pressure and the lower system pressure can not be set independently of each other and should be exchangeable and produced economically. According to the invention, the above is achieved, whereby both pilot pistons (44, 48), both pilot springs (45, 49) and both adjuster screws (78, 80) are arranged concentrically within each other, whereby both pilot pistons (44, 48) are mechanically adjustable completely separately from each other.
    • 所述Erfinderung涉及一种导向操作压力切断与具有入口(12),通过该zufühbar的液压系统压力装置连接的主控制活塞(20),当在液压系统中的上层系统极限压力以第一开关位置与漏极(13)和 分离到达由Einnnahme较低的系统极限压力从漏极(13)的第二位置的围巾。 压力截止阀具有先导阀组件(11)。 在这种Druckabschalventil先导阀装置(11)旨在是紧凑和简单的结构,对一个Druckabschalventils,其中所述上系统极限压力和更低的系统极限压力不能彼此unabhändig被设置为可更换的,并廉价地制造的先导阀安排。 根据本发明这是这样实现在所述两个导频的活塞(44,48),所述两个导频的弹簧(45,49)和两个调节螺钉(78,80)同心地布置一个在另一个内,其中,所述两个导频的活塞(44,48)machanisch完全 是可调节的unabhändig彼此。