Patent ID: 8689558
Filing Date: 2014-04-08
Classification: F02C,F02K,F05B,F05D

Abstract:
1. A propfan engine comprising: a power-producing core including a compressor, a combustion section, and a turbine; a plurality of nozzles for exhausting exhaust gas from the core; and a row of propeller blades rotatable about an axis, the blades being positioned downstream of the exhaust nozzles and the turbine being arranged to drive rotation of the row of propeller blades, wherein: the exhaust nozzles are rotatable about said axis; and the propfan engine is configured such that, during use, hot exhaust gas exiting from the turbine is ducted to an outer surface of the engine and exhausted through the exhaust nozzles to the external airflow into a flow path of the propeller blades.