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    • 2. 发明申请
    • FUEL SUPPLY APPARATUS
    • WO2021139838A2
    • 2021-07-15
    • PCT/CN2021/085955
    • 2021-04-08
    • NORGREN MANUFACTURING CO., LTD.
    • LIU, YiCHENG, JingBAI, Yujie
    • H01M8/04H01M8/04201
    • A fuel supply apparatus for a fuel cell system, the apparatus comprising a fuel supply flow path by which fuel is supplied to an inlet of said fuel cell system, wherein the fuel supply flow path comprises a first branch, and a second branch arranged in parallel to the first branch; a fuel recirculation flow path by which residual fuel is transferred from an outlet of said fuel cell system to the fuel supply flow path, wherein the fuel recirculation flow path comprises a first branch and a second branch; a first ejector for introducing recirculated fuel from the first branch of the fuel recirculation flow path to the first branch of the fuel supply flow path; a second ejector for introducing recirculated fuel from the second branch of the fuel recirculation flow path to the second branch of the fuel supply flow path; a first valve for controlling flow at the second branch of the fuel supply flow path, and a second valve for controlling flow at the second branch of the fuel recirculation flow path, wherein the first and second valves each have a first, closed position where flow is prevented and a second, open position where flow is permitted. When said fuel cell system is operated at a first, lower, power rate, the first and second valves are in the first, closed position, such that the introduction of recirculated fuel to the second branch of the fuel supply flow path at the second ejector is prevented; and when said fuel cell system is operated at a second, higher, power rate, the first and second valves are in the second, open position, such that recirculated fuel is introduced to the second branch of the fuel supply flow path at the second ejector.