Gas turbine exhaust
AssigneeRolls-Royce North American Technologies Inc.
InventorsChristopher J. Bies, Stephen A. Bergeron, Bryan H. Lerg, Emil R. Dejulio
Life of this patent
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Abstract
An exhaust device is disclosed that includes a duct that turns an exhaust flow from a gas turbine engine from a first direction to a second direction. A diverter cup is disposed within the duct and serves to split the exhaust flow into two streams as well as introduce cooling air through an ejector pump at the downstream end of the diverter cup. A splitter is disposed downstream of the diverter cup and serves to split the cooling air into two streams which are thereafter mixed with the split exhaust flow. A diffuser is created in the exhaust device between the duct and the splitter. Various cooling slots are also provided in the duct.
Claims20
An exhaust arrangement comprising:
- a housing;
- a diverter cup having a leading edge, a top, and a bottom;
- a splitter positioned downstream of the diverter cup between the top and the bottom;
- a diffuser located downstream of the leading edge of the diverter cup;
- and
- the diverter cup, the diffuser, and the splitter disposed within the housing.
An exhaust system comprising:
- a duct operable to convey an exhaust stream;
- a flow changing structure disposed within the duct and having a leading edge and a trailing exit operable to emit a flow stream;
- and
- an elongate flow device located within the duct and having at least a portion positioned aft of the trailing exit and within the flow stream when the flow changing structure is operated, the elongate flow device having a closed trailing end.
An exhaust arrangement comprising:
- a housing;
- a diverter cup having a leading edge, a trailing edge a top, and a bottom;
- a splitter positioned entirely aft of the trailing edge of the diverter cup and between the top and the bottom;
- and
- the diverter cup, the diffuser, and the splitter disposed within the housing.
Dependencies are inferred from the claim text.