| 摘要 |
PROBLEM TO BE SOLVED: To cool a cap plate of a combustor cap assembly disposed in a combustor.SOLUTION: An impingement plate coupled to an annular shroud at least partially defines a plurality of impingement cooling holes and a cooling flow return passage. A cap plate coupled to the impingement plate includes an impingement side which faces a second side portion of the impingement plate, where the impingement side is axially separate from the second side portion to define an impingement air plenum therebetween. The cooling flow return passage is in fluid communication with the impingement air plenum. A fluid conduit extends from a first side portion of the impingement plate towards a first end portion of the shroud. The fluid conduit is in fluid communication with the cooling flow return passage and provides fluid communication out of the impingement air plenum.SELECTED DRAWING: Figure 1 |
