Small gas turbine for driving model aircraft - has compressor running wheel equipped with cover plate and backwardly curved blades

摘要

The blade height at the inlet is higher than at the outlet by a factor of 1.5. The housing (3) of the turbine is bottle-shaped, in which at the transition part to the narrowest dia. the guide blades (4) for the turbine stage are integrated, and in the narrowest part an axial turbine wheel (5) is centred. The shaft-side end of the turbine blades is formed by a thin-walled flow body (6), the dia. of which is 0.1 to 0.2 mm smaller than the foot circle dia. of the guide blades. The flow body carries on the inner surface a concentrically drilled ring (7), through which the turbine-side end of the shaft tunnel (8) with a roller bearing (9) extends. USE/ADVANTAGE - To drive model aircraft, using diesel fuel, and achieving a max. thrust of approximately 30 N.