Fluid controlled switching unit
    1.
    发明授权
    Fluid controlled switching unit 失效
    流体控制开关单元

    公开(公告)号:US6082243A

    公开(公告)日:2000-07-04

    申请号:US39497

    申请日:1998-03-16

    摘要: A fluid controlled switching unit includes a valve block; a guide bore provided in the valve block; first and second work chambers provided in the valve block and spaced from one another; first and second cylinder bores provided in the valve body; and a plunger rod guided in the guide bore for reciprocating motion therein along a displacement path. The plunger rod has first and second piston faces situated in the first and second work chambers, respectively, and exposed to fluid pressure prevailing therein. The first and second piston faces move in the first and second cylinder bores, respectively. A valve body is attached to the plunger rod for forming a unitary structure therewith. The valve body has opposite pressure faces as well as first and second opposite end positions determining opposite ends of the displacement path. The valve body, when situated in one of the end positions, is exposed solely unilaterally to fluid pressure at one of the pressure faces thereof. There are further provided a pressurized fluid supply, a depressurized fluid return and a switch-over valve for alternatingly coupling the first and second work chambers to the pressurized fluid supply and the depressurized fluid return for effecting the reciprocating motion.

    摘要翻译: 流体控制切换单元包括阀块; 设置在阀块中的引导孔; 第一和第二工作室设置在阀块中并彼此间隔开; 设置在阀体中的第一和第二气缸孔; 以及引导在引导孔中以沿着位移路径往复运动的柱塞杆。 柱塞杆具有分别位于第一和第二工作室中的第一和第二活塞面,并暴露于其中存在的流体压力。 第一和第二活塞面分别在第一和第二气缸孔内移动。 阀体连接到柱塞杆上以与其形成一体结构。 阀体具有相反的压力面以及确定位移路径的相对端的第一和第二相对的端部位置。 当阀体位于一个端部位置时,阀体仅在其压力面之一处单向地暴露于流体压力。 进一步提供加压流体供应,减压流体返回和切换阀,用于将第一和第二工作室交替地连接到加压流体供应和用于实现往复运动的减压流体返回。

    Controllable fuel injection valve for an internal-combustion engine
    2.
    发明授权
    Controllable fuel injection valve for an internal-combustion engine 失效
    用于内燃机的可控燃油喷射阀

    公开(公告)号:US5979790A

    公开(公告)日:1999-11-09

    申请号:US74398

    申请日:1998-05-08

    摘要: A fuel injection valve for an internal combustion engine includes a valve block; an injection nozzle carried by the valve block and having a nozzle opening; a valve needle slidable in the injection nozzle for assuming closed and open positions to block and, respectively, to unblock the nozzle opening; a closing spring urging the valve needle into the closed position; and a pressurized fluid port in the valve block. The nozzle opening is in communication with the pressurized fluid port in the open position of the valve needle. A discharge port is defined in the valve block for carrying fluid away therefrom. An equalizing piston, which is slidably disposed in a work chamber in the valve block, is connected with the valve needle. A control plunger is movable in the valve block and has a first position and a second position. In the first position the control plunger prevents communication between the discharge port and the work chamber and maintains communication between the pressurized fluid port and the work chamber for maintaining the equalizing piston and the valve needle in the closed position. In the second position the control plunger prevents communication between the pressurized fluid port and the work chamber and maintains communication between the discharge port and the work chamber for moving the equalizing piston and the valve needle into the open position. A throttle is disposed in the discharge port for braking fluid flow from the work chamber through the discharge port.

    摘要翻译: 一种用于内燃机的燃料喷射阀包括阀块; 由阀块承载并具有喷嘴开口的注射喷嘴; 一个可在注射喷嘴中滑动的阀针,用于假设闭合和打开的位置,以分别阻止喷嘴开口; 关闭弹簧,将阀针推入关闭位置; 以及阀块中的加压流体端口。 喷嘴开口在阀针的打开位置与加压流体端口连通。 排出口被限定在阀块中,用于将流体从其中移出。 可滑动地设置在阀块中的工作室中的均压活塞与阀针连接。 控制柱塞可在阀块中移动并且具有第一位置和第二位置。 在第一位置,控制柱塞防止排出口和工作室之间的连通,并且保持加压流体端口和工作室之间的连通,以将均衡活塞和阀针保持在关闭位置。 在第二位置,控制柱塞防止加压流体端口和工作室之间的连通,并且保持排出口和工作室之间的连通,以使均衡活塞和阀针移动到打开位置。 节气门设置在排出口中,用于制动流体通过排出口从工作室流出。

    Injection system for dosed injections of two liquids into a reaction chamber
    3.
    发明授权
    Injection system for dosed injections of two liquids into a reaction chamber 失效
    注射系统用于将两种液体注入反应室

    公开(公告)号:US06739522B2

    公开(公告)日:2004-05-25

    申请号:US10203421

    申请日:2002-08-08

    IPC分类号: B05B712

    摘要: The invention relates to an injection device for the metered injection of two liquids, in predeterminable quantity ratios, into a reaction chamber, the device having a housing (1) that includes an injection nozzle, the opening (13) of which forms an injection valve with the valve seat (14) in the housing (1) and a valve body (15) that can be positioned on the valve seat (14); the valve body (15) can be moved by a first actuator; the collection chamber (16) of the device is associated with the nozzle opening (13), and is connected to a supply line (17) for the first liquid (A) and a supply line (21) for the second liquid (B), with a metering valve (22) being set up to block at least one supply line (21) to the collection chamber, the valve being actuated by a second actuator; one of the two liquids is under a higher pressure than the other liquid; the device further has a control device (10), which can actuate the two actuators as a function of a load-stipulated total injection quantity and as a function of a predeterminable quantity ratio of the two liquids (A, B), with at least one valve being actuated in a clocked manner.

    摘要翻译: 本发明涉及一种用于将可预定量的两种液体计量注入反应室的注射装置,该装置具有包括注射喷嘴的壳体(1),该开口(13)形成喷射阀 阀座(14)位于壳体(1)中,阀体(15)可定位在阀座(14)上; 阀体(15)可以由第一致动器移动; 装置的收集室(16)与喷嘴开口(13)相关联,并连接到用于第一液体(A)的供应管线(17)和用于第二液体(B)的供应管线(21) ,其中计量阀(22)设置成阻挡至所述收集室的至少一个供应管线(21),所述阀门由第二致动器致动; 两种液体之一的压力高于其他液体; 所述装置还具有控制装置(10),所述控制装置可根据负荷规定的总喷射量和作为所述两种液体(A,B)的可预定量比的函数致动所述两个致动器,至少具有至少 一个阀门以时钟方式致动。

    Electric solid-body actuator having a hydraulic amplitude magnifier
    4.
    发明授权
    Electric solid-body actuator having a hydraulic amplitude magnifier 失效
    具有液压幅度放大镜的电动实体致动器

    公开(公告)号:US6062532A

    公开(公告)日:2000-05-16

    申请号:US76867

    申请日:1998-05-13

    摘要: An actuator assembly for operating a setting member includes an actuator body undergoing a dimensional change upon applying electrical energy thereto; a preliminary pressure chamber for accommodating liquid; a diaphragm sealing the preliminary pressure chamber and being displaceable by the actuator body; a valve member carried by the diaphragm; a transfer chamber for accommodating liquid; and a displaceable plate body disposed in the preliminary pressure chamber and sealingly bounding the transfer chamber. The diaphragm, as it is moved by the actuator body, displaces the plate body. A displaceable piston body sealingly bounds the transfer chamber and has a surface which is smaller than the surface of the plate body, whereby the plate body--with the intermediary of the liquid--displaces the piston body to a greater extent than the displacement of the plate body. The piston body, as it moves, displaces the setting member. A valve opening provided in the plate body is closed or opened by the valve member carried by the diaphragm. In the open position of the valve member, the valve opening establishes a hydraulic communication between the preliminary pressure chamber and the transfer chamber.

    摘要翻译: 用于操作设定构件的致动器组件包括在向其施加电能时经历尺寸变化的致动器主体; 用于容纳液体的预压室; 隔膜,密封预压室并由致动器主体移动; 由隔膜承载的阀构件; 用于容纳液体的传送室; 以及可置换的板体,设置在预压室中并且密封地限制传送室。 隔膜由致动器主体移动,使板体移动。 可移动的活塞体密封地限制传送室并且具有比板体的表面小的表面,由此板体 - 其中间的液体将活塞体移动到比板的位移更大的程度 身体。 活塞体随着移动而移动设定构件。 设置在板体中的阀开关由隔膜承载的阀构件封闭或打开。 在阀构件的打开位置,阀开口建立在预压室和传送室之间的液压连通。