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1. 发明申请

WO1998021527A1 COMBUSTOR ARRANGEMENT 审中-公开
标题翻译： COMBUSTOR安排
公开(公告)号：WO1998021527A1
公开(公告)日：1998-05-22
申请号：PCT/GB1997003085
申请日：1997-11-10
申请人： EUROPEAN GAS TURBINES LIMITED , SENIOR, Peter , MAIDHOF, Sebastian
发明人： EUROPEAN GAS TURBINES LIMITED
IPC分类号： F23R03/50
CPC分类号： F23R3/286 , F23R3/12 , F23R3/34 , F23R3/50 , Y02T50/675
摘要： A combustor (30) for a gas turbine engine comprises an annular combustion chamber (31) having radially outer and inner rows of fuel injectors (19 , 20 ) disposed concentrically in the combustor head wall (32). Injectors in one of the rows are in angular registration with spaces between injectors in the other row. Each fuel injector comprises a means for producing a fuel/air mixture having a swirling motion, and a mixing duct located downstream of the means for producing the fuel/air mixture. Each mixing duct opens into the combustion chamber (31) through the combustor head wall (32) and has a length sufficient to allow at least partial mixing of the fuel/air mixture before entry to the combustion chamber as a divergent swirling stream (38, 40). Mixing ducts in the first and second rows of injectors have longitudinal centrelines (L1 , L2 ) oriented to coincide with generating rays of respective first and second imaginary conical sufaces. These conical surfaces intersect at an included angle (2D) within a primary combustion zone in the combustion chamber, whereby injectors (19 , 20 ) located in different rows are angled towards each other in the downstream direction and the divergent swirling streams of fuel/air mixture (38, 40) coming from different rows cross in the combustion chamber in an interdigitating manner. This creates a strong mixing interaction between the streams from different rows and enhances uniformity and rapidity of combustion in the primary combustion zone.
摘要翻译：用于燃气涡轮发动机的燃烧器（30）包括环形燃烧室（31），其具有同心地设置在燃烧器头壁（32）中的径向外排和内排燃料喷射器（19 1，20 1）。一列中的注射器与另一行中的喷射器之间的空间成角度对齐。每个燃料喷射器包括用于产生具有旋动运动的燃料/空气混合物的装置和位于用于产生燃料/空气混合物的装置下游的混合管道。每个混合管道通过燃烧器头壁（32）通入燃烧室（31），并且其长度足以允许燃料/空气混合物在进入燃烧室之前至少部分混合，作为分散的旋流（38， 40）。第一和第二排注射器中的混合管道具有定向成与产生相应的第一和第二虚拟圆锥形表面的射线一致的纵向中心线（L1'，L2'）。这些锥形表面在燃烧室中的主燃烧区内以夹角（2D）相交，由此位于不同行中的喷射器（19 1，20 1）在下游方向上彼此成角度，并且发散来自不同行的燃料/空气混合物（38,40）的回旋流以交叉的方式在燃烧室中交叉。这在来自不同行的流之间产生强烈的混合相互作用，并增强了主燃烧区中燃烧的均匀性和快速性。

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