ELECTRONIC FUEL TANK SYSTEM HAVING CAM ACTUATED VENTING WITH CANISTER LINE ISOLATION

    公开(公告)号:US20210370762A1

    公开(公告)日:2021-12-02

    申请号:US17403116

    申请日:2021-08-16

    Abstract: An evaporative emissions control system configured to recapture and recycle emitted fuel vapor on a vehicle fuel tank is provided. The control system includes a first and second vent line disposed in the fuel tank, a first and second vent valve, a vent shut-off assembly, a purge canister and a control module. The vent shut-off assembly selectively opens and closes the first and second valves to provide overpressure and vacuum relief for the fuel tank. The control module regulates operation of the vent shut-off assembly based on operating conditions to vent the first and second vent valves to the purge canister. The vehicle fuel tank comprises a saddle tank having first and second lobes and a raised portion arranged generally at a top portion of the fuel tank. The first vent valve is arranged generally in the first lobe and the second vent valve is arranged in the raised portion.

    LIQUID TRAP DRAIN PUMP
    3.
    发明申请

    公开(公告)号:US20200055390A1

    公开(公告)日:2020-02-20

    申请号:US16665661

    申请日:2019-10-28

    Abstract: A pump assembly for a liquid trap of a vehicle fuel tank assembly includes a pump configured to couple to the liquid trap and selectively drain liquid therefrom, a sensor configured to monitor an inductive signature of the pump, and a controller programmed to operate the pump and monitor the inductive signature to determine if liquid is present in the liquid trap based on the monitored inductive signature.

    ELECTRONIC FUEL TANK SYSTEM HAVING CAM ACTUATED VENTING WITH CANISTER LINE ISOLATION

    公开(公告)号:US20210122233A1

    公开(公告)日:2021-04-29

    申请号:US17093422

    申请日:2020-11-09

    Abstract: An evaporative emissions control system configured to recapture and recycle emitted fuel vapor on a vehicle fuel tank is provided. The control system includes a first and second vent tube disposed in the fuel tank, a first and second vent valve, a vent shut-off assembly, a purge canister and a control module. The vent shut-off assembly selectively opens and closes the first and second valves to provide overpressure and vacuum relief for the fuel tank. The control module regulates operation of the vent shut-off assembly based on operating conditions to vent the first and second vent valves to the purge canister. The vehicle fuel tank comprises a saddle tank having first and second lobes and a raised portion arranged generally at a top portion of the fuel tank. The first vent valve is arranged generally in the first lobe and the second vent valve is arranged in the raised portion.

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