帶狀閥芯結構-中英對照

In a fourth embodiment the valve element is a flexible, ribbon-like seal connected at one end to the valve body, and at the other end to the float. The closure portion of the valve element conforms to the vent outlet to tightly close it when the float is raised to the closed position. The valve vent outlet has a length greater than its width to define a longitudinal lever arm along which the ribbon seal is peeled off. In this version the vent outlet itself defines two pivot points about which the ribbon seal is levered at two different stages in the opening process. A first pivot point defines a first lever arm and opening moment sufficient to initially break the seal between the ribbon valve element and the vent outlet, while the second pivot point defines a subsequent longer lever arm through which the float acts to finish the opening of the vent outlet.

第四個特點是閥芯為靈活的、帶狀的封條與閥件的末端連接，另一端連接浮標，閥芯的結束部分與出氣口一致，當浮標上升到關閉位置時，兩者緊密的結合在一起。出氣口的長度比它的寬度要大，這樣杠桿臂就會沿著縱向方向，對帶狀封條進行清除。在這種形式的出氣口設計有兩個樞軸點，分為在啟動過程中的兩個不同階段。第一個樞軸點為第一個杠桿臂，啟動的旋切軸來對帶狀閥芯和出氣口間的封條進行分離和清除。而第二個樞軸點為隨后的杠桿臂，由浮標對出氣口進行封閉。

In all embodiments maximum opening force is applied to achieve the initial break in the seal between the valve element and the vent outlet.
在所有的特點里，均為了采用最大的啟動力。來對閥芯和出氣口間的封條進行分離和清除。
The valve can include gravity-operated rollover structure associated with the float to force the float to a closed position when the vehicle is tilted or rolled over. In a preferred form, however, the float itself is of a buoyancy which permits it to respond rapidly to liquid fuel surge and rollover orientation to close the valve, assisted by a light bias spring to provide the proper mass balance.
閥件包括重力控制翻轉結構，該結構和浮標連接在一起，當車輛傾斜或翻滾時，將浮標推到關閉的位置。 更理想的結構是，浮標有浮力，當液體的用動和翻轉方向接近關閉閥時，可以在輕型彈簧提供適度的質量平衡的幫助下，快速做出反映。
Other advantageous features and embodiments of the present invention are described in the following description.

該發(fā)明的其它特點和特征如下所述。

Referring now to FIGS. 1 and 2, a rollover vent control valve according to the present invention is generally shown by the reference numeral 18, mounted in the fuel tank 10 of a vehicle fuel system including a filler pipe 12 for introducing fuel into the fuel tank and a vapor canister 14 to which fuel vapor is vented from the tank through the valve 18 via a vent line 16. When the fuel level in the tank is below valve 18, valve 18 is open and provides high volume venting of fuel vapor to the canister. When liquid fuel reaches valve 18 due to fuel slosh or surge, or when the attitude of the valve is upset during a rollover situation, the valve responds by closing, thereby shutting off flow to the vapor canister and protecting the canister from saturation. In the rollover scenario, gravity, and optimally additional structure, aids in closing the valve independently of the effects of liquid fuel; i.e., the valve will reliably close in a rollover situation whether or not it is submerged in fuel.
參照圖1-2，采用本發(fā)明的滾改器孔控制閥件，如圖數字18所示，安裝在車輛燃料系統(tǒng)燃料箱10上，包括注油管12，用來通過閥門18將燃料注入燃料箱，還包括一個氣體金屬容器罐14，燃料氣體從閥門18連通燃料箱。閥門18開放并提供大量的燃料氣體給金屬容器罐。當液體燃料由于晃動或涌動，或者在翻滾時處于向上的方位時，閥門會及時關閉。防止流入氣體金屬容器罐，保護金屬容器罐處于飽和狀態(tài)。在翻滾的時候，重力以及最佳附加方案，幫助閥門進行獨立的關閉，免受液態(tài)燃料的影響，無論是否被燃料淹沒，閥門會在翻滾狀況時進行關閉。

2014.9.13