Patent ID: 9506359
Filing Date: 2016-11-29
CPC Classification: F01D,F05D,F23R

Claim Text:
1. A combustion system for use with a cooling flow, comprising: a head end; an aft end; a transition nozzle extending from the head end to the aft end; an impingement sleeve surrounding the transition nozzle and defining a first cavity in communication with the head end for a first portion of the cooling flow and a second cavity in communication with the aft end for a second portion of the cooling flow, wherein the impingement sleeve comprises a splitter rail extending circumferentially between the transition nozzle and the impingement sleeve in a choked flow region of the transition nozzle, wherein the splitter rail divides and defines the first cavity and the second cavity as separate spaces, wherein the first portion of the cooling flow is provided to the head end through the first cavity and is used to charge a flow of combustion gases, wherein the second portion of the cooling flow is provided to the aft end through the second cavity and is used for film cooling, wherein the transition nozzle comprises an integrated liner, a transition piece, and a first stage nozzle vane; and a plurality of cooling holes positioned about the transition nozzle and in communication with the second portion of the cooling flow, wherein a main portion of the second portion of the cooling flow is directed to the aft end in the second cavity and a secondary portion of the second portion of the cooling flow is directed to the plurality of cooling holes along the second cavity for film cooling.