公开(公告)号：US20170299183A1

公开(公告)日：2017-10-19

申请号：US13974687

申请日：2013-08-23

申请人： Rolls-Royce Deutschland Ltd & Co KG

发明人： Imon Kalyan BAGCHI ,  Waldemar LAZIK

IPC分类号： F23R3/28

CPC分类号： F23R3/286 ,  F23C2201/20 ,  F23C2900/06043 ,  F23D2900/11101 ,  F23N3/002 ,  F23N2037/10 ,  F23N2037/16 ,  F23N2041/20 ,  F23R3/14 ,  F23R3/16 ,  F23R3/26 ,  F23R3/343 ,  F23R2900/03343 ,  Y02T50/675 ,  Y02T50/677

摘要： The present invention relates to a method for operating a lean premix burner of an aircraft gas turbine, where fuel and primary supporting air are supplied by means of a supporting burner (pilot burner) arranged centrically to the burner axis, where secondary air surrounding the supporting burner is supplied, and where fuel and air are supplied by means of a main burner, characterized in that the primary supporting air is supplied in an amount of 5 vol % to 10 vol % of the total air quantity, that the secondary supporting air is supplied in an amount of 5 vol % to 20 vol % and that 35 vol % to 75 vol % of the total air quantity are supplied via the main burner in the partial load range and in the full load range.

公开(公告)号：US20140360202A1

公开(公告)日：2014-12-11

申请号：US14299890

申请日：2014-06-09

申请人： ROLLS-ROYCE PLC ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

发明人： Ian James TOON ,  Robert Anthony HICKS ,  Michael WHITEMAN ,  Waldemar LAZIK ,  Imon-Kalyan BAGCHI

IPC分类号： F23R3/34

CPC分类号： F23R3/343 ,  F23D11/107 ,  F23R3/346

摘要： A fuel injector includes pilot and main fuel injectors. The pilot fuel injector includes at least one pilot air swirler and the main fuel injector includes a main air blast fuel injector located between inner main and outer main air swirlers. A first air splitter is located between the pilot and inner main air swirlers and a second air splitter is located between the pilot and inner main air swirlers. The first air splitter has a downstream portion converging to a downstream end. The second air splitter has a downstream portion diverging to a downstream end. The second air splitter downstream end is downstream of the first air splitter downstream end and the ratio of the distance from the first air splitter downstream end to the second air splitter downstream end to the diameter of the second air splitter downstream end is in the range of 0.22 to 0.30.

摘要翻译： 燃料喷射器包括驾驶员和主燃料喷射器。 所述先导燃料喷射器包括至少一个先导空气旋流器，并且所述主燃料喷射器包括位于内主主空气旋流器和外主空气旋流器之间的主鼓风燃料喷射器。 第一空气分配器位于先导和内部主空气旋流器之间，并且第二分配器位于先导和内部主空气旋流器之间。 第一分流器具有会聚到下游端的下游部分。 第二空气分配器具有向下游端发散的下游部分。 第二分流器下游端在第一分流器下游端的下游，并且从第一分流器下游端到第二分流器下游端的距离与第二分流器下游端的直径的比率在 0.22〜0.30。