Gas venting valve
    1.
    发明授权
    Gas venting valve 失效
    排气阀

    公开(公告)号:US4702268A

    公开(公告)日:1987-10-27

    申请号:US946497

    申请日:1986-12-24

    IPC分类号: F16K17/36 F16K24/04 F16K17/00

    摘要: A gas vent orifice (78, 148) is located within a gas vent passageway. A closure ball (80, 154) is located upstream of the orifice (78, 148). A piston (66, 166) is located downstream of the orifice (78, 148). The piston (66, 166) includes a projection (76, 170) which projects into the orifice (78, 148), for dislodging the closure ball (80, 154) from its seated position. A mass in the form of a spherical ball (74, 160) functions to move the piston (66, 166) to dislodge the closure ball (80, 154). The mass (80, 154) rests on a conical ramp (56, 126) and the slope of the ramp serves to direct the mass (80, 154) against the piston (66, 166). A steep sloped ramp (126) may be used in combination with a piston (166) having a cylindrical center portion (168). Or, a shallow ramp (56) may be used in combination with a piston (66) having a flat upper surface and radial legs (68, 70) which fit within radial slots (58) in the ramp (56).

    摘要翻译: 排气口(78,148)位于排气通道内。 封闭球(80,154)位于孔口(78,148)的上游。 活塞(66,166)位于孔口(78,148)的下游。 活塞(66,166)包括突出到孔口(78,148)中的突起(76,170),用于将封闭球(80,154)从其就座位置移开。 球形球(74,160)形式的物体用于使活塞(66,166)移动以移离闭合球(80,154)。 质量块(80,154)位于锥形斜坡(56,126)上,并且斜坡的斜面用于将质量(80,154)引向活塞(66,166)。 陡斜坡(126)可以与具有圆柱形中心部分(168)的活塞(166)组合使用。 或者,浅坡道(56)可以与具有平坦的上表面的活塞(66)和适合于斜坡(56)中的径向槽(58)内的径向支腿(68,70))结合使用。