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    • 9. 发明授权
    • Combustion apparatus
    • 燃烧装置
    • US5816793A
    • 1998-10-06
    • US457384
    • 1995-06-01
    • Mitsuyoshi NakamotoHirohisa KatoKenkichi HashidoTakashi NishikawaHideharu SanoSatoru Nitta
    • Mitsuyoshi NakamotoHirohisa KatoKenkichi HashidoTakashi NishikawaHideharu SanoSatoru Nitta
    • F23M99/00F23D21/00
    • F23M20/005F23D2210/00
    • The invention is intended to suppress oscillatory combustion of a combustion apparatus. In the invention, acoustic closed ends are provided at an inlet side and an outlet side of the burner port unit, and the combustion apparatus is constituted so that the flame may be positioned between these closed ends, and a buffer chamber is provided at the inlet side. Thus, when the inlet side and outlet side of the burner port unit of the combustion apparatus are formed as acoustic closed ends, oscillatory combustion occurs easily. At this time, when the intake tube communicates at the upstream side of the inlet side closed end, and an exhaust tube communicates at the downstream side of the outlet side closed end, if the length of the intake tube and exhaust tube is changed, the air ratio and combustion amount for generating oscillatory combustion remain constant, and the oscillation frequency and oscillation pressure remain constant. In such condition, when a sound absorbing unit is provided in the buffer chamber, oscillation does not occur, and if the intake tube or exhaust tube is extended, oscillation does not occur.
    • 本发明旨在抑制燃烧装置的振荡燃烧。 在本发明中,在燃烧器端口单元的入口侧和出口侧设置声学闭合端,并且燃烧装置构成为使得火焰可以位于这些封闭端之间,并且在入口处设置有缓冲室 侧。 因此,当燃烧装置的燃烧器端口单元的入口侧和出口侧形成为声闭合端时,容易发生振荡燃烧。 此时,当进气管在入口侧封闭端的上游侧连通,排气管在出口侧封闭端的下游侧连通时,如果进气管和排气管的长度改变, 空气比和产生振荡燃烧的燃烧量保持恒定,并且振荡频率和振荡压力保持恒定。 在这种情况下,当在缓冲室中设置吸音单元时,不发生振动,如果进气管或排气管延伸,则不会发生振荡。