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    • 6. 发明专利
    • Fuel tank structure for fuel system for multiple fuels
    • 多燃料燃料系统燃油箱结构
    • JP2008008278A
    • 2008-01-17
    • JP2006230792
    • 2006-08-28
    • Exxonmobil Research & Engineering CoToyota Motor Corpエクソンモービル リサーチ アンド エンジニアリング カンパニートヨタ自動車株式会社
    • SUGIYAMA KOSEKIODA TOMIHISAYOTSUEDA KEIJIIWASHITA YOSHIHIROPARTRIDGE RANDALL D
    • F02M37/00F02M25/08
    • B60K15/03B60K15/035B60K2015/03105B60K2015/03144F02M25/0836Y10T137/86187
    • PROBLEM TO BE SOLVED: To prevent formation of ignitable air-fuel mixture in a fuel tank gas phase. SOLUTION: The fuel system for multiple fuels is provided with a high vapor pressure fuel tank 3 containing fuel of a high saturated vapor pressure whose tank inside fuel vapor concentration becomes an ignitable high limit concentration or more at an ordinary temperature, and a low vapor pressure fuel tank 1 containing fuel of a low saturated vapor pressure whose tank inside fuel vapor concentration becomes an ignitable high limit concentration or lower at an ordinary temperature. The gas phase of the high vapor pressure fuel tank is communicated with the gas phase of the low vapor pressure fuel tank by a communication pipe 11, and the gas phase of the low vapor pressure fuel tank is connected to a canister 15 via a vapor pipe 13 and a check valve 17. Since the fuel vapor of high vapor pressure in the high vapor pressure fuel tank flows into the low vapor pressure fuel tank via the communication pipe 11 to fill the low vapor pressure fuel tank, the fuel concentration in the gas phase of the low vapor pressure fuel tank increases above the high limit value of an ignitable concentration range. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止在燃料箱气相中形成可点燃的空气 - 燃料混合物。 解决方案:用于多种燃料的燃料系统设置有高蒸气压燃料箱3,其包含高饱和蒸汽压的燃料,其燃料蒸气浓度在常温下变为可燃上限浓度或更高, 低蒸气压燃料箱1,其含有燃料蒸气浓度低于可燃高浓度浓度或常温以下的低饱和蒸汽压的燃料。 高蒸汽压燃料箱的气相通过连通管11与低蒸气压燃料箱的气相连通,低蒸气压燃料箱的气相通过蒸汽管连接到罐15 13和止回阀17.由于高蒸汽压燃料箱中的高蒸汽压的燃料蒸汽经由连通管11流入低蒸气压燃料箱以填充低蒸气压燃料箱,所以气体中的燃料浓度 低蒸气压燃料箱的相位增加到可燃浓度范围的上限值以上。 版权所有(C)2008,JPO&INPIT