螺旋状阀芯结构说明-中英对照
Arms 242 rotatably support there between at least one pulley wheel 248. An anchor post 252 is formed on the valve body intermediate the pivot post 246 and the float chamber. Pulley cord 250 is fastened at one end to anchor post 252, looped over and around pulley wheel 248, and fastened at the other end to float 46.
臂242通过转动，可支持至少一个滑轮248。锚柱252设置在在轴柱246与浮箱中间的阀体上。滑轮绳索250的一端系在锚柱252上，绕过滑轮，另一端系在浮标46上。
A bias spring 254 provides upward tension to valve element 240 such that when float 46 is raised spring 254 forces valve element 240 to the valve closed position shown in solid lines in FIG. 8. When the float drops, the moment generated by the downward force on the support arm end of valve element 240 is compounded by the mechanical advantage provided by pulley 248 and cord 250. The pulley converts the relatively large amount of axial float travel into a relatively small amount of arcuate valve element travel to increase the opening force.
偏置弹簧254为阀芯240提供向上的张力，以致当浮标46抬升弹簧254迫使阀芯240位于阀静止位置，如图8所示的实线。当浮标下沉，由于向下的力在阀芯240支撑臂末端产生的力矩被滑轮248与绳索250提供的机械效益混合。滑轮将相对大量的轴向浮标移动转移到相对少量的弧形阀芯移动上，以提高开启力。
A fourth embodiment of the peel away valve-opening mechanism according to the present invention is shown in FIGS. 12-16. Vent outlet 332 in this embodiment is defined by an oval valve seat 334 in upper portion 326 of the valve body. Valve seat 334 comprises a raised flange extending in the direction of the interior of lower portion 328 of the hollow valve body. In the illustrated embodiment, it can be seen that valve seat 334 lies in a plane inclined or angled from the horizontal, running from a lower end 336 to an upper end 338. Vent outlet 332 is defined by oval valve seat 334 as a long, narrow oval whose length is substantially greater than its width, such that it essentially takes the form of a slot having rounded ends.
按照当前的发明，第四个剥落阀开启装置如图12-16所示。排气口332在该装置中定义为一个椭圆形的阀座334，位于阀体的上部分326。阀座334包括一个提升法兰，沿着中空阀体的下部328的内部方向延伸。在图示的装置中，可以看到，阀座334处于水平倾斜或与水平面够成角度，从低端336向上端338运动。排气口332定义为椭圆形阀座，由于长而窄的椭圆形其长度明显大于宽度，因此它的形状实质上是一个有着圆形末端的细长缝。
Float 346 in FIGS. 12-16 can be essentially the same as any of the embodiments described above. Accordingly, it is not shown or described in detail in FIGS. 12-16. Rollover structure 347, shown here as a well-known ball and ramp mechanism, can likewise take the form of any of the embodiments described above, so long as it works in complementary fashion with float 346.
图12-16中的浮标346在本质上与以上描述的任何构造相同。因此，在图12-16.12-16中不再另外进行图示或详细描述。滚转结构347，在此处显示为球状物和斜面装置，同样可以采用以上描述的装置中的任何形式，只要它能够与浮标346配合使用。
A flexible, peel away ribbon valve element 340 is fastened at one end 342 to the interior of valve body 320 adjacent lower end 336 of valve seat 334. At its other end 344 valve element 340 is connected to float 346 adjacent upper end 338 of valve seat 334. Valve element 340 has a length greater than that of the valve seat such that its end 344 extends beyond upper end 338 of valve seat 334 into the interior of the hollow valve body 320. As illustrated, valve element 340 is a rectangular sheet of pliable material, for example fluorosilicon rubber, having an area sufficient to completely cover vent outlet 332 and valve seat 334. The flexible nature of valve element 340 allows it to effectively pivot about its end 342 fastened to the interior of the valve body 320. The longitudinal axis of valve element 340 is essentially aligned with vent outlet 332 and valve seat 334, as best shown in FIG. 313.
一个灵活的、剥落的螺旋状阀芯340的一端342固定在阀体320的内部，该阀体位于阀座334较低端的附近。阀芯340的另一端344连接浮标346，该浮标靠近阀座334的上端338。
阀芯340比阀座长得多，以致它的末端344伸出阀座334的上端338，进入中空的阀体320内部。据说明，阀芯340是由柔韧材料制成的一个矩形薄片，例如：氟硅酮橡胶，有足够大的面积完全覆盖排气口332和阀座334。阀芯340的柔韧性使其能够有效地围绕固定在阀体320内部的末端342旋转。阀芯340的纵向轴本质上来讲都与排气口332和阀座334相连，如图313所示。
2014.9.20