GAS TURBINE ENGINE COMBUSTOR, METHOD AND DOME ASSEMBLY FOR SUPPLYING AIR TO THE COMBUSTOR

摘要

PROBLEM TO BE SOLVED: To provide a dome assembly which prolongs service life of a combustor (16) for a gas turbine (10) through a cost-effective and reliable technique. SOLUTION: The dome assembly includes a dome plate (142) and a heat shield (170) connected to the dome plate. The dome plate includes a collision baffle (148) and an opening which penetrates the baffle and which is formed into a size to fit a fuel injector. The collision baffle also includes a plurality of holes (164) which is hydraulically communicated with the heat shield. Cooling air flow is headed by the heat shield so as to perform collision cooling and film cooling of the shield.