| 主权项 |
1. An emissions control system for a gas turbine engine comprising a flow-directing structure that delivers combustion gases from a burner to a turbine, wherein a static pressure exhibited by combustion gasses within the flow-directing structure varies from relatively high at a relatively upstream location to relatively low at a relatively downstream location, the emissions control system comprising:
a conduit configured to establish fluid communication between;
a) compressed air exhibiting an intermediate static pressure that is less than a static pressure of combustion gases at an upstream location within the flow directing structure, and an upstream location that is at either 1) a high-velocity section of a compressor where the compressed air comprises the intermediate static pressure, or 2) at a constricted region defined by a flow sleeve and a combustor wall and configured to produce a venturi effective to generate the intermediate static pressure, andb) the combustion gases within the flow-directing structure; wherein during operation of the gas turbine engine, a pressure difference between the intermediate static pressure and the static pressure of combustion gases within the flow-directing structure is effective to generate a fluid flow through the conduit. |
