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    • 5. 发明申请
    • SECONDARY GAS/LIQUID MECHANICAL SEAL ASSEMBLY
    • 二次气/液体机械密封组件
    • WO1993010380A1
    • 1993-05-27
    • PCT/US1992009937
    • 1992-11-10
    • BW/IP INTERNATIONAL, INC.
    • BW/IP INTERNATIONAL, INC.SALANT, RichardGREEN, ItzhakHUFFORD, Larry, A.GILES, Oley
    • F16J15/34
    • F16J15/3432F16J15/008Y10S277/914Y10S277/929
    • A secondary mechanical seal assembly is used on a shaft (12) that is rotatable within a housing (14) to seal both gaseous and liquid medium (20). The assembly (18) includes a stationary seal face element (26) that is fixed relative to the housing and a rotating seal face element (24) that is fixed relative to the shaft (12). One of the seal face element (24-26) back surfaces (34) includes at least one slot (40) configured to produce a wave on the front surface (32) of the seal face element (24-26) when the shaft (12) is rotated. The wave creates an opening force that is sufficient to control wear and prolong seal life when the secondary seal assembly (18) is exposed to a gaseous medium. When exposed to a pressurized liquid medium, the hydrodynamic loading from the liquid medium alters the seal face element (24-26) waviness, and increases the closing force due to the action of the pressurized liquid on the back surface of the seal face elements, such that excessive leakage is prevented.
    • 第二机械密封组件用于可在壳体(14)内旋转以密封气体和液体介质(20)的轴(12)上。 组件(18)包括相对于壳体固定的固定密封面元件(26)和相对于轴(12)固定的旋转密封面元件(24)。 密封面元件(24-26)后表面(34)中的一个包括至少一个槽(40),其构造成当轴(24-26)在密封面元件(24-26)的前表面(32)上产生波时 12)旋转。 当二次密封组件(18)暴露于气体介质时,该波形产生足以控制磨损并延长密封寿命的打开力。 当暴露于加压液体介质时,来自液体介质的流体动力学负载改变了密封面元件(24-26)波纹,并且由于加压液体在密封面元件的后表面上的作用而增加了闭合力, 使得防止了过度的泄漏。
    • 7. 发明申请
    • HYDRODYNAMIC SEAL ASSEMBLY WITH INTERFACE CONTROL
    • 具有接口控制的水动力密封组件
    • WO2016100212A1
    • 2016-06-23
    • PCT/US2015/065559
    • 2015-12-14
    • EATON CORPORATION
    • RUGGERI, Edward, Nicholas
    • F16J15/3244F16J15/3268
    • F16J15/3244F16J15/3268F16J15/3272F16J15/3416F16J15/3432F16J15/3452F16J15/36
    • A hydrodynamic seal (10) for use with a rotating shaft (24) is disclosed. The seal includes a face seal (20) and a mating ring (22) fixed or connected to rotate with the shaft. A clamping nut (30) is adjacent to the mating ring and includes threads to secure a portion of the clamping nut to the shaft via a threaded interface (32). Embodiments of the seal and related assembly include at least one of: a spring component (140) with or on the clamping nut; a clamping surface (150) on an interface between the mating ring and the clamping nut, the clamping surface being substantially parallel to a thread pitch on the threaded interface; and a pilot surface (250) on the clamping nut.
    • 公开了一种与旋转轴(24)一起使用的流体动力密封件(10)。 密封件包括面密封件(20)和固定或连接以与轴一起旋转的配合环(22)。 夹紧螺母(30)与配合环相邻并且包括螺纹,用于通过螺纹接口(32)将夹紧螺母的一部分固定到轴上。 密封件和相关组件的实施例包括以下中的至少一个:具有或在夹紧螺母上的弹簧部件(140) 在所述配合环和所述夹紧螺母之间的界面上的夹紧表面(150),所述夹紧表面基本上平行于所述螺纹接口上的螺距; 和夹紧螺母上的先导表面(250)。
    • 8. 发明申请
    • HYDRAULICALLY CONTROLLABLE MECHANICAL SEAL
    • 液压可控机械密封
    • WO2014152999A1
    • 2014-09-25
    • PCT/US2014/028595
    • 2014-03-14
    • GEORGIA TECH RESEARCH CORPORATION
    • SALANT, Richard F.PAYNE, John Wilson
    • F16J15/34
    • F16J15/3448F16J15/3432F16J15/3496
    • A controllable mechanical seal (10) for sealing a shaft (14) rotatable relative to a housing (18) of a device which manipulates a fluid, the seal including: (i) a first face element (12) having a first face surface, wherein the first face element is adapted to rotate with the shaft; (ii) a second face element (16) having a second face surface, wherein the second face element is adapted to be supported within the housing; wherein the first face surface and the second face surface define a gap between the surfaces, physical dimensions of the gap contributing to defining a leakage rate of the fluid through the gap; wherein at least one of the first face element or the second face element includes at least one cavity (28) wholly contained within the face element, the at least one cavity adapted to contain a hydraulic fluid; and wherein the at least one cavity is in fluid communication with at least one hydraulic intensifier (58) and at least one pressure control valve (52), the at least one hydraulic intensifier being in pressure communication with a source of pressure (54); (iii) a sensor (62) adapted to generate a signal indicative of the leakage rate; and (iv) a controller responsive to the signal for generating an output; wherein a state of the at least one pressure control valve is adapted to change in response to the controller output in order to increase or decrease the pressure of the hydraulic fluid in the at least one cavity, thereby deforming one of the first face surface or the second face surface to adjust the leakage rate.
    • 一种用于密封可相对于操纵流体的装置的壳体(18)旋转的轴(14)的可控机械密封件(10),所述密封件包括:(i)具有第一表面的第一面元件, 其中所述第一面元件适于与所述轴一起旋转; (ii)具有第二面表面的第二面元件(16),其中所述第二面元件适于被支撑在所述壳体内; 其中所述第一面表面和所述第二面表面限定所述表面之间的间隙,所述间隙的物理尺寸有助于限定流体通过所述间隙的泄漏速率; 其中所述第一面部元件或所述第二面部元件中的至少一个包括完全包含在所述面部元件内的至少一个空腔(28),所述至少一个腔体适于容纳液压流体; 并且其中所述至少一个空腔与至少一个液压增压器(58)和至少一个压力控制阀(52)流体连通,所述至少一个液压增压器与压力源(54)压力连通; (iii)适于产生指示泄漏率的信号的传感器(62); 和(iv)响应所述信号产生输出的控制器; 其中所述至少一个压力控制阀的状态适于响应于所述控制器输出而改变,以便增加或减少所述至少一个空腔中的液压流体的压力,从而使所述第一面表面或 第二面表面来调节泄漏率。