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 assembly having 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 fuel tank. 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.
METHOD AND APPARATUS FOR CONTROLLING VAPOR RECIRCULATION IN A GASOLINE FUEL TANK
2021-04-22
Patent
Electronic Resource
English
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 | 2021
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