Magnetically coupled contra-rotating propulsion stages
First Claim
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.
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Accused Products
Abstract
A turbomachine comprises a turbine shaft, first and second rotors, first and second propulsion stages, and a magnetic stator. The first rotor is rotationally coupled to the turbine shaft, and coaxially arranged along an axis. The first propulsion stage is rotationally coupled to the first rotor, opposite the turbine shaft. The second rotor is coaxially arranged about the first rotor, and the second propulsion stage is rotationally coupled to second rotor, opposite the turbine shaft and adjacent the first propulsion stage. The magnetic stator is coaxially arranged between the first rotor and the second rotor, forming a magnetic coupling between the and second rotors to drive the second propulsion stage in contra-rotation with respect to the first propulsion stage.
65 Citations
20 Claims
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1. A turbomachine comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A propulsion engine comprising:
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an engine core comprising a compressor, a combustor and a turbine arranged in flow series along an axis; a primary magnetic rotor rotationally coupled to the engine core along the axis; a primary propulsion rotor coaxially coupled to the primary magnetic rotor, opposite the engine core along the axis; a secondary magnetic rotor coaxially arranged about the primary magnetic rotor; a secondary propulsion rotor coaxially coupled to the secondary magnetic rotor, opposite the engine core along the axis and adjacent the primary propulsion rotor; and a magnetic stator coaxially arranged between the primary magnetic rotor and the secondary magnetic rotor, the magnetic stator forming a magnetic coupling between the primary and secondary magnetic rotors to drive the primary and secondary propulsion stages in contra-rotation about the axis. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification