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    • 9. 发明申请
    • Bi-fuel Engine Using Hydrogen
    • 双燃料发动机使用氢气
    • US20090071453A1
    • 2009-03-19
    • US11855439
    • 2007-09-14
    • William Francis StockhausenDiana Dawn Brehob
    • William Francis StockhausenDiana Dawn Brehob
    • F02B43/10
    • F02D19/0644F02D19/061F02D19/0689F02D19/0692F02D19/081F02D19/084Y02T10/36
    • A method is disclosed for making a transition from fueling an engine with hydrogen to another fuel. That other fuel may be gasoline, a gasoline and alcohol mixture, or gaseous fuels, as examples. The other fuel has the capability of providing higher BMEP than the hydrogen because of better air utilization and because the other fuel occupies less volume of the combustion chamber. Because a desirable equivalence ratio to burn hydrogen is at 0.5 or less and a desirable equivalence ratio to burn other fuel is at 1.0, when a demand for BMEP that leads to a transition change from hydrogen fuel to the other fuel, the amount of air supplied to the engine is decreased to provide more torque and vice versa. During a transition in which liquid fuel supply is initiated, it may desirable to continue to provide some hydrogen, not leaner than 0.1 hydrogen equivalence ratio.
    • 公开了一种用于使从具有氢气的发动机加燃料到另一种燃料的过渡的方法。 例如,其他燃料可以是汽油,汽油和酒精混合物,或气体燃料。 另一种燃料具有比氢更高的BMEP能力,因为更好的空气利用率,并且因为其它燃料占据较少的燃烧室的体积。 因为燃烧氢气所需的等效比为0.5以下,燃烧其他燃料的期望当量比为1.0,当导致从氢燃料向另一燃料转变的BMEP的需求时,供给的空气量 到发动机减少以提供更多的扭矩,反之亦然。 在开始液体燃料供应的转变期间,可能需要继续提供一些氢,而不是比0.1氢当量比稀。