带状阀芯结构-中英对照
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.
第四个特点是阀芯为灵活的、带状的封条与阀件的末端连接，另一端连接浮标，阀芯的结束部分与出气口一致，当浮标上升到关闭位置时，两者紧密的结合在一起。出气口的长度比它的宽度要大，这样杠杆臂就会沿着纵向方向，对带状封条进行清除。在这种形式的出气口设计有两个枢轴点，分为在启动过程中的两个不同阶段。第一个枢轴点为第一个杠杆臂，启动的旋切轴来对带状阀芯和出气口间的封条进行分离和清除。而第二个枢轴点为随后的杠杆臂，由浮标对出气口进行封闭。
In all embodiments maximum opening force is applied to achieve the initial break in the seal between the valve element and the vent outlet.
在所有的特点里，均为了采用最大的启动力。来对阀芯和出气口间的封条进行分离和清除。
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.
阀件包括重力控制翻转结构，该结构和浮标连接在一起，当车辆倾斜或翻滚时，将浮标推到关闭的位置。 更理想的结构是，浮标有浮力，当液体的用动和翻转方向接近关闭阀时，可以在轻型弹簧提供适度的质量平衡的帮助下，快速做出反映。
Other advantageous features and embodiments of the present invention are described in the following description.
该发明的其它特点和特征如下所述。
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.
参照图1-2，采用本发明的滚改器孔控制阀件，如图数字18所示，安装在车辆燃料系统燃料箱10上，包括注油管12，用来通过阀门18将燃料注入燃料箱，还包括一个气体金属容器罐14，燃料气体从阀门18连通燃料箱。阀门18开放并提供大量的燃料气体给金属容器罐。当液体燃料由于晃动或涌动，或者在翻滚时处于向上的方位时，阀门会及时关闭。防止流入气体金属容器罐，保护金属容器罐处于饱和状态。在翻滚的时候，重力以及最佳附加方案，帮助阀门进行独立的关闭，免受液态燃料的影响，无论是否被燃料淹没，阀门会在翻滚状况时进行关闭。
2014.9.13