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    • 2. 发明申请
    • FLOW CONTROL VALVE
    • 流量控制阀
    • WO1996021103A1
    • 1996-07-11
    • PCT/NL1995000449
    • 1995-12-29
    • VAN DEN WILDENBERG, Adrianus, Martinus, Maria
    • F02M69/18
    • G05D7/0652F02M69/18Y10T137/87314
    • A flow control valve comprising a supply line connection and at least one discharge line connection, characterized by at least one fine-control valve whose flow rate is continuously or semicontinuously variable and at least one two-position valve having a minimum flow rate in one stable position and a maximum flow rate in another stable position, the inlet of the or each two-position valve and the or each fine-control valve being in fluid communication with the supply line connection, and the outlet of the or each two-position valve and the or each fine-control valve being in fluid communication with the or each discharge line connection. In accordance with a further elaboration, the flow control valve may comprise a series of two-position valves, with the maximum flow rate of the successive two-position valves in the series doubling in each case, and the minimum flow rate of each two-position valve being zero.
    • 一种流量控制阀,包括供应管线连接和至少一个排出管线连接件,其特征在于,至少一个流量连续或半连续可变的精细控制阀和至少一个具有最小流量的两个位置阀, 位置和另一个稳定位置的最大流量,每个两位置阀门或每个精细控制阀的入口与供应管路连接处于流体连通状态,或每个两位置阀门的出口 并且所述或每个精细控制阀与所述或每个排出管线连接件流体连通。 根据进一步的阐述,流量控制阀可以包括一系列两位置阀,其中在每种情况下,串联加倍的连续两位置阀的最大流量和每个两位置阀的最小流量, 位置阀为零。
    • 4. 发明申请
    • APPARATUS AND METHOD FOR WELLHEAD HIGH INTEGRITY PROTECTION SYSTEM
    • 用于高效整合保护系统的装置和方法
    • WO2008085239A1
    • 2008-07-17
    • PCT/US2007/024924
    • 2007-12-03
    • SAUDI ARABIAN OIL COMPANYFLANDERS, Patrick, S.
    • FLANDERS, Patrick, S.
    • F17D1/20
    • F17D5/00E21B33/03Y10T137/7728Y10T137/7761Y10T137/87265Y10T137/87314Y10T137/87507Y10T137/87772Y10T137/87877
    • A system for protecting piping downstream of a wellhead includes an inlet connected to the wellhead and an outlet connected to downstream piping. Two sets of series-connected surface safety valves are in a parallel fluid flow relation to each other and in fluid communication with the inlet. Two vent control valves, which are in fluid communication with each other, each of the two series-connected safety valves and the inlet and outlet of the system, are intermediately connected to the safety valves. Each vent control valve is in fluid communication with a vent line for venting process pressure between surface safety valves through the outlet control valve based on a signal-generating safety logic solver having preprogrammed safety and operational protocols and pressure sensing transmitters attached upstream of the outlet control valve Independent, tight shut-off tests of each series-connected surface safety valve set closes all valves upon electrical or hydraulic failure.
    • 用于保护井口下游的管道的系统包括连接到井口的入口和连接到下游管道的出口。 两组串联连接的表面安全阀彼此并联,并且与入口流体连通。 两个排气控制阀彼此流体连通,两个串联连接的安全阀和系统的入口和出口中的每一个中间连接到安全阀。 每个排气控制阀与通气管路流体连通,以便通过出口控制阀将表面安全阀之间的过程压力排出,基于具有预编程的安全和操作协议的信号生成安全逻辑解算器以及附接在出口控制器上游的压力传感发射器 阀门每个串联连接的表面安全阀组件的独立紧密关闭测试在电气或液压故障时关闭所有阀门。
    • 5. 发明申请
    • WORKING LIQUID FEEDING APPARATUS FOR WIRE CUT ELECTRIC DISCHARGE MACHINE
    • 线切割放电机工作液体送料装置
    • WO1990006202A1
    • 1990-06-14
    • PCT/JP1989001220
    • 1989-12-05
    • FANUC LTDHIGASHI, Izumi
    • FANUC LTD
    • B23H07/02
    • B23H7/101Y10T137/87314
    • This invention relates to a working liquid feeding apparatus for a wire cut electric discharge machine capable of easily adjusting a working liquid feed quantity of each of upper and lower nozzles to an optimum value suitable for a machining mode. The working liquid feeding apparatus, in which pump (11) is connected to inlet ports of first and second three-way change-over valves (61, 62) through a main conduit (12) and first and second sub-conduits (71, 72) and third and fourth sub-conduits (73, 74) are respectively connected to the two outlet ports of each change-over valve, is operated under the state where valve opening of flow regulation valves (81 ∩ 83) of the sub-conduits is adjusted so that the feed quantity of the working liquid through the first and third sub-conduits and the feed quantity of the working liquid through the second sub-conduit are suitable for punching and for end surface machining, respectively, and state where the flow regulation valve (84) of the second sub-conduit is adjusted so that the feed quantity of the working liquid through the fourth sub-conduit is about 10 to 15 % of the feed quantity through the second sub-conduit. Then, the same and suitable amount of the working liquid which is suitable for punching is jetted from the upper and lower nozzles (40, 50) at the time of punching and at the time of end surface machining, on the other hand, the suitable amount of the working liquid for the end surface machining is jetted from the upper nozzle along the end surface of a work and along a wire electrode while a small amount of the working liquid is jetted from the lower nozzle.