Patent ID: 8464511
Filing Date: 2013-06-18
Classification: B64C,F02C,F02K,F05D,H02K,Y02T

Abstract:
1. A turbomachine comprising: a turbine shaft rotationally mounted along an axis; a first rotor rotationally coupled to the turbine shaft and coaxially arranged about the axis; a first propulsion stage rotationally coupled to the first rotor, opposite the turbine shaft; a second rotor coaxially arranged about the first rotor; a second propulsion stage rotationally coupled to second rotor, opposite the turbine shaft and adjacent the first propulsion stage; a magnetic stator coaxially arranged between the first rotor and the second rotor and forming a magnetic coupling between the first rotor and the second rotor to drive the second propulsion stage in contra-rotation with respect to the first propulsion stage.