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    • 82. 发明专利
    • Safety valve
    • 安全阀门
    • JPS5929881A
    • 1984-02-17
    • JP13963882
    • 1982-08-11
    • Toshiba Corp
    • KIKUCHI OSAMU
    • F16K17/04F16F9/34F16K47/00
    • F16K47/00
    • PURPOSE:To prevent a valve from its action of rapid closing, by providing a damping mechanism by which acceleration in the direction of valve closing is greatly damped as compared with the acceleration in the direction of valve opening. CONSTITUTION:When the pressure of fluid is increased to a level above a preset pressure, a valve rod 14 is lifted upward. Here only a very little amount of decrease of acceleration is caused in a conical member 106. Next, when the pressure of the fluid is decreased to a level below the preset pressure, the valve rod 14 is depressed downward. Here the conical member 106 mounted on the valve rod 14 generates large resistance force by means of working oil 105. Accordingly, acceleration acting in the direction of valve closing is largely damped, and the valve rod 14 is gently moved downward.
    • 目的:为了防止阀门快速关闭,通过提供阻尼机构,与阀开启方向的加速度相比,阀关闭方向的加速度大大减弱。 构成:当流体的压力增加到高于预定压力的水平时,阀杆14被向上提升。 此时,在锥形部件106中仅产生很少的加速度的降低。接下来,当流体的压力降低到低于预设压力的水平时,阀杆14向下压。 这里,安装在阀杆14上的锥形部件106通过工作油105产生大的阻力。因此,沿阀关闭方向作用的加速度大大减弱,并且阀杆14缓慢地向下移动。
    • 85. 发明申请
    • VALVE BODY WITH UPPER FLOW DIVERTER
    • 阀体与上游流路
    • WO2014036069A1
    • 2014-03-06
    • PCT/US2013/056968
    • 2013-08-28
    • FISHER CONTROLS INTERNATIONAL LLC
    • DAVIES, Lonnie, O.HILSABECK, Jeremy, RobertENGLE, Chad, Michael
    • F16K27/04
    • F16K47/00F16K27/041F16K47/08
    • A valve body (12) includes a first opening (32), a second opening (34), a gallery (24), a first flow conduit portion (36), a second flow conduit portion (38), and an upper flow diverter (44). The gallery is disposed between the first and second openings. The first flow conduit portion extends between the first opening and a side opening of the gallery. The second flow conduit portion extends between the second opening and a bottom opening of the gallery. The upper flow diverter is carried by an upper wall portion of the first flow conduit portion and extends into the first flow conduit portion. In one version, the upper flow diverter includes an elongated structure extending at least partially between the first opening and the gallery for diverting the fluid flowing through the first flow conduit portion and into the gallery.
    • 阀体(12)包括第一开口(32),第二开口(34),廊道(24),第一流动管道部分(36),第二流动管道部分(38)和上部流动分流器 (44)。 画廊设置在第一和第二开口之间。 第一流道部分在第一开口和画廊的侧面开口之间延伸。 第二流动导管部分在第二开口和画廊的底部开口之间延伸。 上部分流器由第一流动管道部分的上壁部分承载并延伸到第一流动管道部分中。 在一个版本中,上部流动分流器包括细长结构,其至少部分地延伸在第一开口和库之间,用于使流过第一流动导管部分的流体转移到库中。
    • 87. 发明申请
    • COMPOUND ACTION TYPE NON-WATER HAMMERING CHECK VALVE DEVICE
    • 复合动作型非水锤检查阀装置
    • WO1995020735A1
    • 1995-08-03
    • PCT/JP1995000097
    • 1995-01-27
    • KABUSHIKI KAISHA YOKOTA SEISAKUSHOYOKOTA, HiroshiYOKOTA, Shingo
    • KABUSHIKI KAISHA YOKOTA SEISAKUSHO
    • F16K15/03
    • E03C1/104F16K1/2007F16K15/03F16K15/033F16K15/181F16K47/00F16K47/023F16L55/055Y10T137/785Y10T137/7898Y10T137/7901
    • The invention has its object to radically resolve an untapped technical issue in a non-water hammering check valve device, in which a valve disc, a valve seat and a surrounding flow passage are configured such that the valve disc is substantially seated on the valve seat at the time when input to a pump is shut off and a discharge flow in the flow passage loses inertia to stop, and to provide a reasonable non-water hammering check valve device of a simple and clear construction which suffers a small resistance loss of a valve at the time of a predetermined maximum flow rate, can readily accommodate an abrupt change in a flow state without delay in valve closing operation and provides a uniform and close seating on the valve seat at the time of valve seating to prevent water hammering. In the non-water hammering check valve device, a valve disc (4) is connected to an arm portion (5) through a valve disc support shaft (6) with a required freedom of swinging, and the arm portion (5) is connected to a valve body (1) through an arm support shaft (7). At the time of valve opening, the valve disc (4) is caused by an additional acting force, which turns the valve disc (4) about the valve disc support shaft (6), to be floatingly supported in the flow passage while an upstream end (4a) of the valve disc and an upstream end (5a) of the arm portion preferentially abut against each other all the time. At the time of valve closing, a downstream end (4b) of the valve disc preferentially abuts against a valve seat (3), and in a subsequent valve seating stroke, the entire surface of the valve disc (4) comes into uniform and close contact with the valve seat (3) to prevent water hammering caused by counterflow.
    • 本发明的目的是彻底解决非水锤击止回阀装置中未开发的技术问题,其中阀盘,阀座和周围流动通道构造成使得阀盘基本上位于阀座上 在泵的输入被切断并且流路中的排出流量失去惯性停止时,提供合理的非水锤击止回阀装置,其简单而清晰的结构,其具有小的阻力损失 在预定的最大流量时,阀可以容易地容纳流动状态的突然变化,而不会在阀关闭操作中延迟,并且在阀座时提供在阀座上均匀且紧密的座位,以防止水击。 在非水击锤止回阀装置中,阀盘(4)通过阀盘支撑轴(6)与臂部(5)连接,具有所需的摆动自由度,臂部(5)连接 通过臂支撑轴(7)到达阀体(1)。 在阀打开时,阀盘(4)由附加的作用力引起,该作用力使阀盘(4)围绕阀盘支撑轴(6)转动,以浮动地支撑在流动通道中,同时上游 阀盘的端部(4a)和臂部分的上游端(5a)优先地彼此抵靠。 在阀关闭时,阀盘的下游端(4b)优先地抵靠阀座(3),并且在随后的阀座行程中,阀盘(4)的整个表面均匀并且紧密 与阀座(3)接触,以防止逆流引起的水击。