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    • 6. 发明授权
    • Flow actuated automatic valve
    • 流动自动阀
    • US3861415A
    • 1975-01-21
    • US31652872
    • 1972-12-19
    • PHILLIPS PETROLEUM CO
    • LARSEN OLAF E
    • F16K15/04F16K17/34
    • F16K17/34F16K15/04Y10T137/7729Y10T137/7848Y10T137/7873
    • A flow actuated automatic valve has first and second ends and a passageway formed therethrough having first, second and middle portions, a ball positioned in the middle portion of the passageway, means for preventing the ball from passing through the first end portion of the passageway, and a ball seating element positioned in the second end portion of the passageway. The ball seating element has an interrupted annular seating surface extending about an opening therethrough which is in communication with the middle and second end portions of the passageway. The seating surface is mateable with the ball for receiving the ball and reducing the flow of fluid to the valve in response to a preselected flow rate through said valve.
    • 流动致动的自动阀具有第一和第二端和通过其形成的通道,其具有第一,第二和中间部分,位于通道的中间部分中的球,用于防止球穿过通道的第一端部的装置, 以及定位在通道的第二端部中的球座元件。 球座元件具有围绕其穿过的开口延伸的中断的环形座表面,该开口与通道的中间和第二端部连通。 座面可与球接触,用于接收球,并响应于通过所述阀的预选流量减少流体流向阀的流动。