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    • 5. 发明授权
    • Catalytic heater assembly
    • 催化加热器总成
    • US06470876B1
    • 2002-10-29
    • US09637390
    • 2000-08-11
    • Franklin T. SchmidtRandall L. MayDavid H. LinneburVernon M. Svitak, Jr.
    • Franklin T. SchmidtRandall L. MayDavid H. LinneburVernon M. Svitak, Jr.
    • F24C304
    • F24H3/0488F23D14/18F23D14/28F23D2203/1017F23D2203/1055F23D2203/107
    • A portable heater assembly includes a fan module, an electrical ignition assembly, a heating apparatus, and an encasement. The encasement supports and houses the fan module, the electrical ignition assembly, and the heating apparatus. The fan module includes a fan, an electric switch, and electrical wiring, the electrical wiring interconnecting the fan, electric switch and a power source. The electric switch activates the fan by forming a closed electrical circuit within the electrical wiring between the power source and the fan. The electrical ignition assembly includes an electrical ignition device, a spark-emitting electrode tip protruding from the electrical ignition device, and an ignition activator connected to the electrical ignition device by an activator connector. The heating apparatus includes a combustion chamber having a catalyst-containing substrate in proximity to the spark-emitting electrode tip, an air-fuel mixer connected to the combustion chamber, and regulator valve assembly connecting the air-fuel mixer to a source of fuel. The air-fuel mixer provides a uniform mixture of fuel and primary air that is ignited by the spark-emitting electrode tip for combustion in the combustion chamber. The use of primary air improves efficiency and reduces the reliance on secondary air. Limiting the proportion of primary air to approximately 15-20% of the stoichiometric mass of air required substantially reduces the emission of hazardous combustion by-products such as carbon monoxide.
    • 便携式加热器组件包括风扇模块,电点火组件,加热装置和外壳。 外壳支撑并容纳风扇模块,电气点火组件和加热装置。 风扇模块包括风扇,电开关和电气布线,电气布线将风扇,电开关和电源互连。 电开关通过在电源和风扇之间的电气布线内形成闭合的电路来激活风扇。 电点火组件包括电点火装置,从电点火装置突出的火花发射电极尖端和通过激活器连接器连接到电点火装置的点火启动器。 加热装置包括燃烧室,其具有靠近火花发射电极头的含催化剂的衬底,连接到燃烧室的空气 - 燃料混合器以及将空气 - 燃料混合器连接到燃料源的调节阀组件。 空气 - 燃料混合器提供燃料和一次空气的均匀混合物,其被火花发射电极头点燃以在燃烧室中燃烧。 一次空气的使用提高了效率,减少了对二次空气的依赖。 将一次空气的比例限制在化学计量空气质量的约15-20%,这大大减少了有害燃烧副产物如一氧化碳的排放。