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    • 91. 发明授权
    • Metering apparatus for dispensing precise volumes of liquid
    • 用于分配精确体积的液体的计量装置
    • US4532962A
    • 1985-08-06
    • US602383
    • 1984-04-20
    • Daniel N. Campau
    • Daniel N. Campau
    • F15C1/14
    • F15C1/14Y10T137/2273Y10T137/86389
    • An apparatus is disclosed for dispensing a precise volume of liquid. An emitter dispenses a stream of liquid to an appropriate collector and includes an outlet restriction for generating a positive pressure in the emitter behind the outlet restriction. Liquid is fed to the emitter under pressure. A time delay loop is provided in communication with the emitter behind the outlet restriction for receiving liquid therefrom under the influence of the positive pressure. The exit end of the time delay loop directs liquid received thereby against the stream of liquid dispensed by the emitter and diverts the stream of liquid away from the collector when the time delay loop becomes filled with liquid under pressure from the emitter. A fluid amplifier is provided for generating a laminar liquid power stream to the emitter and for controlling the on-off cycle of the apparatus.
    • 公开了用于分配精确体积的液体的装置。 发射器将液流分配到合适的收集器,并且包括用于在出口限制器后面的发射器中产生正压力的出口限制。 在压力下将液体供给到发射器。 提供延时回路,与出口限制器之后的发射器连通,以在正压力的影响下接收液体。 时间延迟环的出口端引导其接收的液体抵抗由发射器分配的液体流,并且当时间延迟回路在来自发射器的压力下充满液体时,将液流流从收集器转移。 提供流体放大器,用于产生到发射器的层流液体动力流并用于控制装置的开关循环。
    • 93. 发明授权
    • Fluid multi-and logical circuit
    • 流体多路逻辑电路
    • US3786838A
    • 1974-01-22
    • US3786838D
    • 1973-05-22
    • US ARMY
    • SWARTZ E
    • F15C1/00F15C1/14
    • F15C1/00F15C1/14Y10T137/212Y10T137/218Y10T137/2245
    • Disclosed herein in a MULTI-AND fluid logic circuit comprising essentially of a conventional fluid amplifier having a power source, first and second control channels and first and second output channels. The amplifier is provided with biasing means which is associated with one of the control channels and means are associated with the other control channel for producing a control signal which is a function of a predetermined number of external signals. More particularly, this last named means comprises a plurality of aspirators, each having an input nozzle and an exhaust nozzle and each connected to an enclosed manifold which in turn is in fluid communication with the second control channel of the fluid amplifier. The operation is such that the simultaneous presence of a fluid signal in all aspirators creates a sufficient pressure change to switch the fluid stream in the fluid amplifier from the first output channel to the second output channel.
    • 本文中公开了一种MULTI-AND流体逻辑电路,其基本上包括具有电源,第一和第二控制通道以及第一和第二输出通道的常规流体放大器。 放大器设置有与控制信道中的一个相关联的偏置装置,并且装置与另一控制信道相关联,用于产生作为预定数量的外部信号的函数的控制信号。 更具体地,最后命名的装置包括多个吸气器,每个吸气器具有输入喷嘴和排气喷嘴,每个吸气器连接到封闭的歧管,该歧管又与流体放大器的第二控制通道流体连通。 操作使得在所有抽吸器中同时存在流体信号产生足够的压力变化,以将流体放大器中的流体流从第一输出通道切换到第二输出通道。
    • 94. 发明授权
    • Fluid flow control device
    • 流体流量控制装置
    • US3670755A
    • 1972-06-20
    • US3670755D
    • 1969-09-17
    • WESTINGHOUSE ITALIANA
    • NARDI GIANCARLO
    • F15C1/14F15C1/04
    • F15C1/14Y10T137/2245
    • A fluid flow control device in which a housing is provided with a flat chamber having two parallel sides, a supply passage communicating with one end of the chamber and dimensioned to pass between the parallel sides of the chamber a stream of fluid in a substantially laminar flow condition to an aligned output passage on the opposite chamber end, the stream contacting the two flat sides to form a fluid diaphragm and dividing the chamber into two lateral chambers, each communicating with different control pressure passages for pressuring the two lateral chambers at different static pressure levels to provide a differential pressure gradient acting on the full free length of the fluid stream across the chamber, bending the stream an amount determined by the pressure gradient to deliver a portion of the stream to a second output passage adjacent the first output passage.
    • 一种流体流量控制装置,其中壳体设置有具有两个平行侧面的平坦室,供应通道与腔室的一端连通并且尺寸设计成在腔室的平行侧之间通过基本层流中的流体流 条件到相对的腔室端部上的对准的输出通道,流体接触两个平坦侧面以形成流体隔膜并将腔室分成两个侧向室,每个腔室与不同的控制压力通道连通,以在不同的静压力 水平以提供作用在穿过室的流体流的完全自由长度上的差压梯度,将流量由压力梯度确定的量弯曲,以将流的一部分输送到与第一输出通道相邻的第二输出通道。
    • 95. 发明授权
    • Laminar fluidic devices
    • 层压流体装置
    • US3662772A
    • 1972-05-16
    • US3662772D
    • 1969-11-21
    • GEN ELECTRIC
    • READER TREVOR D
    • G01P3/26F15C1/06F15C1/08F15C1/14F15C1/00
    • F15C1/14F15C1/08Y10T137/2251Y10T137/2256
    • Fluidic devices wherein the fluid stream or streams acting therein are always in the laminar state. The important elements of each fluidic device, which include one or more supply passageways, one or more receiver passageways, vents, a cavity and possibly one or more control passageways, are of a configuration and location such that fluid flowing through each supply passageway forms a laminar fluid stream which is capable of being received by one or more of the receiver passageways in a laminar state. The Reynolds number of the fluid forming the laminar fluid stream is preferably within the range of 200-1,500. The subject invention is applicable to a wide variety of fluidic devices including proportional and digital amplifiers, OR and AND gates, and rate sensors wherein the signal-to-noise ratio is substantially lower than that of conventional turbulent flow fluidic devices.
    • 其中在其中作用的流体流或流总是处于层流状态的流体装置。 每个流体装置的重要元件,其包括一个或多个供应通道,一个或多个接收器通道,通风口,空腔以及可能的一个或多个控制通道,其结构和位置使得流过每个供应通道的流体形成 能够由层流状态的一个或多个接收器通道接收的层流体流。 形成层流体流的流体的雷诺数优选在200-1,500的范围内。 本发明可应用于包括比例和数字放大器,OR和AND门以及速率传感器的各种流体装置,其中信噪比基本上低于常规湍流流体装置。
    • 96. 发明授权
    • Fluidic amplifiers with adaptive gain and/or frequency responses
    • 具有自适应增益和/或频率响应的流体放大器
    • US3621861A
    • 1971-11-23
    • US3621861D
    • 1969-11-12
    • BOWLES FLUIDICS CORP
    • BOWLES ROMALD E
    • F15C1/04F15C1/14F15C3/00
    • F15C1/04F15C1/14Y10T137/2076Y10T137/218Y10T137/2251Y10T137/2256
    • TECHNIQUES ARE DISCLOSED WHEREIN SYMMETRY OF OPERATION, GAIN AND/OR FREQUENCY RESPONSE CHARACTERISTICS OF FLUIDIC AMPLIFIERS MAY BE SELECTIVELY VARIED. IN ONE TECHNIQUE AN AMPLIFIER VENT PASSAGE IS PROVIDED WITH ONE OR MORE INSERTS WHICH CHANGE IN SIZE AND SHAPE IN RESPONSE TO TEMPERATURE AND/OR QUALITATIVE COMPOSITION OF THE WORKING FLUID, THE LATTER TWO PARAMETERS BEING SELECTIVELY VARIABLE TO CHANGE THE FLOW IMPEDANCE OF THE VENT PASSAGE. ANOTHER TECHNIQUE EMPLOYS A SIMILAR INSET IN A FLUIDIC CAPACITOR CONNECTED TO THE AMPLIFIER OUTPUT PASSAGE, WHEREBY THE CAPACITY OF THE OUTPUT PASSAGE, AND HENCE THE FREQUENCY RESPONSE OF THE AMPLIFIER, IS SELECTIVELY VARIABLE WITH EITHER WORKING FLUID TEMPERATURE OR WORKING FLUID QUALITATIVE COMPOSITION. IN STILL ANOTHER TECHNIQUE THE REYNOLDS NUMBER OF A POWER STREAM IN A TURBULENCE AMPLIFIER IS SELECTIVELY VARIED BY VARYING FLUID TEMPERATURE, PRESSURE AND/OR QUALITATIVE COMPOSITION, WHEREBY TO VARY THE SENSITIVITY OF THE POWER STREAM TO TURBULENCE IN RESPONSE TO DIFFERENT INPUT SIGNAL FREQUENCIES. IN ANOTHER TECHNIQUE FLUIDIC CAPACITORS, CONNECTED TO THE INPUT AND/OR OUTPUT PASSAGES OF A FLUIDIC AMPLIFIER, ARE SELECTIVELY VARIED BY INTRODUCING VARIABLE QUANTITIES OF CONTROL FLUID INTO THE CAPACITORS, THE VARIABLE CAPACITY PROVIDES CORRESPONDING VARIABLE AMPLIFIER FREQUENCY RESPONSE CHARACTERISTICS. IN ANOTHER TECHNIQUE, THE POWER STREAM PRESSURE IN A FLUIDIC AMPLIFIER IS AUTOMATICALLY VERIED TO MAINTAIN THE MINIMUM POWER STREAM PRESSURE NECESSARY TO PROVIDE A LINEAR AMPLIFIER GAIN CHARACTERISTICS FOR VARYING INPUT SIGNAL RANGES.