COMBUSTOR CAP ASSEMBLY

摘要

A combustor cap assembly includes an impingement plate coupled to an annular shroud and a cap plate which is coupled to the impingement plate to form an impingement air plenum therebetween. The combustor cap assembly further includes a flow conditioning plate coupled to a forward end portion of the shroud. The flow conditioning plate includes an inner band portion, an outer band portion and an annular portion. The annular portion defines a plurality of flow conditioning passages. The inner band portion at least partially defines a cooling air plenum within the combustor cap assembly. The inner band portion defines an exhaust channel which is in fluid communication with the impingement air plenum and an exhaust outlet. The flow conditioning plate further defines a cooling air passage which provides for cooling air flow into the cooling air plenum.

主权项

1. A combustor cap assembly, comprising:
an impingement plate coupled to an annular shroud; a cap plate coupled to the impingement plate, the cap plate and the impingement plate defining an impingement air plenum therebetween; and a flow conditioning plate coupled to a forward end portion of the shroud, the flow conditioning plate having an inner band portion, an outer band portion and an annular portion which extends radially therebetween, the annular portion defining a plurality of flow conditioning passages, the inner band portion at least partially defining a cooling air plenum within the combustor cap assembly; wherein the inner band portion of the flow conditioning plate at least partially defines an exhaust channel in fluid communication with the impingement air plenum and an exhaust outlet; wherein the flow conditioning plate defines a cooling air passage which provides for cooling air flow into the cooling air plenum.