A turbine installation comprises flow passage-defining means defining an inlet chamber and a runner chamber and including two juxtaposed interconnecting passages which connect the inlet chamber and the runner chamber and are disposed on opposite sides of an axial center plane, and spaced apart in an...http://www.google.es/patents/US4392063?utm_source=gb-gplus-sharePatente US4392063 - Turbine installation comprising a turbine installed in a duct
Turbine installation comprising a turbine installed in a duct