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A system for cooling a fuel injector extending into an exhaust flow field and method of manufacture
A system for cooling a fuel injector extending into an exhaust flow field and method of manufacture
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机译：用于冷却延伸到排气流场中的燃料喷射器的系统和制造方法
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摘要
A system for cooling a fuel injector that extends into an exhaust flow field includes a liner that defines an exhaust flow path within a combustor and a fuel injector that extends through the liner. The fuel injector includes a main body having an annular first portion extending outwardly from the liner and a second portion extending inwardly into the exhaust stream flow path from the first portion. The main body defines a cooling channel that is completely enclosed within the main body and that extends between the first portion and the second portion. A cooling air inlet is defined within the annular first portion and is in flow communication with the cooling channel. A cooling air outlet is in flow communication with the cooling channel and defined within the second portion downstream of the cooling air inlet.
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