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    • 28. 发明公开
    • Shock absorbing sealing means for flow control devices
    • Schockabsorbierende DichtungsvorrichtungfürDurchflussregelungseinrichtungen。
    • EP0449668A1
    • 1991-10-02
    • EP91302869.2
    • 1991-04-02
    • KEYSTONE INTERNATIONAL HOLDINGS CORP.
    • Alberts, Jack BMcNeely, Michael D
    • F16K47/00F16K47/04
    • F16K17/0433F16K47/00Y10S137/904Y10T137/7738Y10T137/7762
    • A flow control device illustrated as a pressure relief valve (10, 10A) has a reciprocable valve member (22, 22A) for seating on a face (20, 20A) of a fixed seat ring (18, 18A). The valve member (22, 22A) includes a hub (36, 36A), an outer seal ring (38, 38A), and a flexible connecting member (40, 40A) extending between and connecting the seal ring (38, 38A) and the hub (36, 36A). Upon seating or reseating of valve member (22, 22A) seal ring (38, 38A) contacts fixed seat ring (18, 18A) and flexible connecting member (40, 40A) flexes upon relative movement of the hub (36, 36A) after initial contact of the seal ring (38, 38A) with the fixed seat ring (20, 20A) to act as a shock absorber for absorbing impact forces.
    • 作为泄压阀(10,10A)示出的流量控制装置具有用于安置在固定座圈(18,18A)的面(20,20A)上的可往复运动的阀构件(22,2A)。 阀构件(22,2A)包括轮毂(36,36A),外密封圈(38,38A)和在密封环(38,38A)之间延伸并连接密封环(38,38A)的柔性连接构件(40,40A)和 轮毂(36,36A)。 在阀构件(22,2 22A)的安置或重新接合时,密封环(38,38A)接触固定的座环(18,18A),并且柔性连接构件(40,40A)在经过轮毂(36,36A)的相对运动 密封环(38,38A)与固定座圈(20,20A)的初始接触,用作吸收冲击力的减震器。