A vent shut-off assembly configured to manage vapor recirculation venting during a refueling event on a fuel tank configured to deliver fuel to an internal combustion engine includes a main housing and an actuator assembly. The main housing selectively vents to a carbon canister. The actuator assembly is at least partially housed in the main housing. The actuator assembly comprises a cam assemblyhaving a cam shaft that includes a first cam and a second cam. The first cam has a profile that actuates a first valve that selectively opens a first port fluidly connected to a first vent in the fueltank. The second cam has a profile that actuates a second valve that selectively opens a second port fluidly connected to a recirculation line that routes vapor back to a filler neck of the fuel tank.
一种排气关断组件包括主外壳和致动器组件,该排气关断组件被构造成在燃料箱加燃料事件期间管理蒸气再循环排气,燃料箱被构造成将燃料递送到内燃机。主外壳选择性地向碳罐排气。致动器组件至少部分地容纳在主外壳中。致动器组件包括具有凸轮轴的凸轮组件,凸轮轴包括第一凸轮和第二凸轮。第一凸轮具有致动第一阀的轮廓,第一阀选择性地打开流体连接到燃料箱中的第一排气口的第一端口。第二凸轮具有致动第二阀的轮廓,第二阀选择性地打开流体连接到再循环管路的第二端口,再循环管路将蒸气路由回到燃料箱的加注颈部。
METHOD AND APPARATUS FOR CONTROLLING VAPOR RECIRCULATION IN A GASOLINE FUEL TANK
用于控制汽油燃料箱中蒸气再循环的方法和设备
2021-02-12
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 |
METHOD AND APPARATUS FOR CONTROLLING VAPOR RECIRCULATION IN A GASOLINE FUEL TANK
European Patent Office | 2020
|METHOD AND APPARATUS FOR CONTROLLING VAPOR RECIRCULATION IN A GASOLINE FUEL TANK
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|Prediction of gasoline vapor generation from a vehicle fuel tank at high temperature
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