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IGNITION AND FLAME-HOLDING METHOD OF SCRUM JET COMBUSTOR

机译：蜗壳喷射燃烧器的点火和火焰保持方法

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PURPOSE:To ignite the fuel jets from plural wall surfaces by a single ignitor and to reduce the number of ignitors, by forming a recirculating area of the fuel including a fuel mixture gas to be jetted from numerous fuel jet orifices in a scrum jet combustor, from plural wall surfaces. CONSTITUTION:In a combustion chamber in which wall surfaces 1 and 2 are crossed at 90 deg., backward steps 3 are formed to the wall surfaces, and plural pilot fuel fet orifices 5 are formed on the wall surface 1 at the upper stream side of steps 3, while an ignitor 6 is provided near the step 3 at the downstream side of the step. And plural main fuel jet orifices 7 are formed on the wall surface 2 at the downstream side of the step. As a result, a low speed recirculating area including a fuel mixture gas with a density suitable to circulate flames 4 along the wall surface of the combustion chamber can be formed, the fuel jets from the wall surfaces 1 and 2 can be ignited by the single ignitor 6, and the number of ignitors can be reduced.
机译：目的：要通过一个点火器点燃多个壁面的燃料喷射并减少点火器的数量，方法是在Scrum喷射燃烧器中形成一个包括要从多个燃料喷射孔喷射的燃料混合气体的燃料再循环区域，从多个壁表面。组成：在一个燃烧室中，壁面1和2以90度相交，在壁面上形成向后的台阶3，在壁面1的上游侧形成多个引燃燃料孔5。步骤3，而在步骤3的下游的步骤3附近设有点火器6。并且，在台阶的下游侧的壁面2上形成有多个主燃料喷射孔7。结果，可以形成低速再循环区域，该低速再循环区域包括具有适合于使火焰4沿着燃烧室的壁表面循环的密度的燃料混合气体，并且可以通过单个点火器点燃从壁表面1和2喷射的燃料。点火器6，可以减少点火器的数量。

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