螺旋狀閥芯結(jié)構(gòu)說明-中英對(duì)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通過轉(zhuǎn)動(dòng)，可支持至少一個(gè)滑輪248。錨柱252設(shè)置在在軸柱246與浮箱中間的閥體上�；喞K索250的一端系在錨柱252上，繞過滑輪，另一端系在浮標(biāo)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.
偏置彈簧254為閥芯240提供向上的張力，以致當(dāng)浮標(biāo)46抬升彈簧254迫使閥芯240位于閥靜止位置，如圖8所示的實(shí)線。當(dāng)浮標(biāo)下沉，由于向下的力在閥芯240支撐臂末端產(chǎn)生的力矩被滑輪248與繩索250提供的機(jī)械效益混合�；唽⑾鄬�(duì)大量的軸向浮標(biāo)移動(dòng)轉(zhuǎn)移到相對(duì)少量的弧形閥芯移動(dòng)上，以提高開啟力。
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.
按照當(dāng)前的發(fā)明，第四個(gè)剝落閥開啟裝置如圖12-16所示。排氣口332在該裝置中定義為一個(gè)橢圓形的閥座334，位于閥體的上部分326。閥座334包括一個(gè)提升法蘭，沿著中空閥體的下部328的內(nèi)部方向延伸。在圖示的裝置中，可以看到，閥座334處于水平傾斜或與水平面夠成角度，從低端336向上端338運(yùn)動(dòng)。排氣口332定義為橢圓形閥座，由于長而窄的橢圓形其長度明顯大于寬度，因此它的形狀實(shí)質(zhì)上是一個(gè)有著圓形末端的細(xì)長縫。
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.
圖12-16中的浮標(biāo)346在本質(zhì)上與以上描述的任何構(gòu)造相同。因此，在圖12-16.12-16中不再另外進(jìn)行圖示或詳細(xì)描述。滾轉(zhuǎn)結(jié)構(gòu)347，在此處顯示為球狀物和斜面裝置，同樣可以采用以上描述的裝置中的任何形式，只要它能夠與浮標(biāo)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.
一個(gè)靈活的、剝落的螺旋狀閥芯340的一端342固定在閥體320的內(nèi)部，該閥體位于閥座334較低端的附近。閥芯340的另一端344連接浮標(biāo)346，該浮標(biāo)靠近閥座334的上端338。
閥芯340比閥座長得多，以致它的末端344伸出閥座334的上端338，進(jìn)入中空的閥體320內(nèi)部。據(jù)說明，閥芯340是由柔韌材料制成的一個(gè)矩形薄片，例如：氟硅酮橡膠，有足夠大的面積完全覆蓋排氣口332和閥座334。閥芯340的柔韌性使其能夠有效地圍繞固定在閥體320內(nèi)部的末端342旋轉(zhuǎn)。閥芯340的縱向軸本質(zhì)上來講都與排氣口332和閥座334相連，如圖313所示。
2014.9.20