| 摘要 |
<p>A combustor (4) having a wall (11) within and around which a plurality of cooling passages (24) are arranged. A supply pipe (16) brings a cooling fluid (40), such as gaseous fuel or compressed air, to a manifold (31, 33) that encircles the inlets of each of the holes. The manifold divides the cooling fluid in a number of small streams that flow axially toward a circumferentially extending array of outlets, thereby heating the fluid and cooling the combustor wall. In an embodiment in which the cooling fluid is compressed air, the passages discharge the heated compressed air to a chamber from which it enters the inlets of the combustors. In an embodiment in which the cooling fluid is gaseous fuel, a second manifold (30, 32, 34) that encircles the outlets collects the fuel and then directs it to a fuel nozzle for introduction into the combustion zone.</p> |
