A vent shut-off assembly configured to manage venting on a fuel tank configured to deliver fuel to an internal combustion engine includes a first liquid vapor discriminator (LVD), a main housing, a poppet valve assembly, a pump and an actuator assembly. The first LVD is disposed in the fuel tank. The main housing selectively vents to a carbon canister. The poppet valve assembly has a poppet valvearranged in the main housing. The pump selectively pumps liquid fuel from the main housing. The actuator assembly is at least partially housed in the main housing and includes a cam assembly having acam shaft that includes a first cam and a second cam. The first cam has a profile that one of opens and closes a poppet valve fluidly coupled to the first LVD. The second cam has a profile that actuates the pump.
本发明公开了一种被构造为管理燃料箱上的排气的排气关断组件,该燃料箱被构造为将燃料递送到内燃机,该排气关断组件包括第一液体蒸气辨别器(LVD)、主壳体、提升阀组件、泵和致动器组件。该第一LVD设置在该燃料箱中。该主壳体选择性地向碳罐排气。该提升阀组件具有布置在该主壳体中的提升阀。该泵选择性地从该主壳体泵送液体燃料。该致动器组件至少部分地容纳在该主壳体中并且包括凸轮组件,该凸轮组件具有凸轮轴,该凸轮组件包括第一凸轮和第二凸轮。该第一凸轮具有打开和关闭流体联接到该第一LVD的提升阀中的一者的轮廓。该第二凸轮具有致动该泵的轮廓。
EVAPORATIVE EMISSIONS FUEL TANK VENTING SYSTEM WITH DRAIN PUMP
具有排出泵的蒸发排放物燃料箱排气系统
2020-10-13
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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