Systems for hybrid electric engines have a fuel vapor canister (FVC) in fluid communication with (i) fuel vapor in a fuel tank with a refueling valve therebetween, (ii) an intake manifold with a canister purge valve therebetween, and (iii) atmospheric pressure (atm) with a canister vent valve (CVV) therebetween, a bypass loop around the refueling valve, and a pressure sensor upstream of both the refueling valve and the CVV. The loop has a control pump and a control valve controlling fluid communication with atm, and in a first mode, control valve and CVV open, pumps fuel vapor to the FVC for pressure control, then closes the control valve; in a second mode, control valve closed and CVV open, pumps atm to the FVC; and in a third mode, control valve and CVV open, pumps fuel vapor to the FVC to a pre-selected threshold to close the CVV.


    Access

    Download


    Export, share and cite



    Title :

    SYSTEM AND METHODS FOR A FUEL TANK PRESSURE CONTROL PUMP


    Contributors:

    Publication date :

    2022-08-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    SYSTEM AND METHODS FOR A FUEL TANK PRESSURE CONTROL PUMP

    LUCKA KEVIN W / TINSLEY III DONALD P / GILMER MATTHEW C | European Patent Office | 2025

    Free access

    System and methods for a fuel tank pressure control pump

    LUCKA KEVIN W / TINSLEY III DONALD P / GILMER MATTHEW C | European Patent Office | 2023

    Free access

    SYSTEM AND METHODS FOR A FUEL TANK PRESSURE CONTROL PUMP

    LUCKA KEVIN / TINSLEY III DONALD / GILMER MATTHEW | European Patent Office | 2023

    Free access

    Fuel tank and pump system

    BYKOWSKI JONATHAN T | European Patent Office | 2024

    Free access

    Fuel tank and pump system

    BYKOWSKI JONATHAN T | European Patent Office | 2023

    Free access