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    • 3. 发明授权
    • Combination microwave gas convection oven
    • 微波炉组合式对流烤箱
    • US4430541A
    • 1984-02-07
    • US447359
    • 1982-12-06
    • William J. Day, Jr.
    • William J. Day, Jr.
    • F24C15/32H05B6/80H05B6/64
    • H05B6/725F24C15/322H05B6/6473
    • A combination microwave gas convection oven having a tubular burner operating in an induced draft environment. A blower system draws air from a combustion chamber forcing it into the heating cavity. The slight pressure created in the combustion chamber draws in air from the heating cavity through perforations communicating therebetween completing the convection recirculation. The negative pressure in the combustion chamber also causes secondary combustion air to be drawn up along the sides of the burner which is positioned adjacent to an aperture in the floor of the combustion chamber. A plurality of top ports in the burner provides low port loading. The structure provides good flame characteristics with low noise of combustion.
    • 一种组合式微波炉对流烘箱,其具有在诱导通风环境中操作的管式燃烧器。 鼓风机系统从燃烧室吸入空气迫使其进入加热腔。 在燃烧室中产生的微小的压力通过穿过其间的穿孔而从加热腔吸入空气,从而完成对流再循环。 燃烧室中的负压也导致二次燃烧空气沿燃烧器的侧面被拉出,燃烧器位于与燃烧室底部的孔附近。 燃烧器中的多个顶部端口提供低端口负载。 该结构提供良好的火焰特性,燃烧噪音低。