Turbine engine with contra-rotating non-ducted propellers
AssigneeSnecma
InventorAdrien Jacques Philippe Fabre
Life of this patent
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Abstract
A turbine engine including two contrarotating unducted propellers of an upstream propeller and a downstream propeller, with a power turbine mounted axially between the two propellers, the turbine including an outer rotor constrained to rotate with the upstream propeller and an inner rotor driving rotation of an inlet shaft of a step-down gearbox, the gearbox includes an outlet shaft driving rotation of the rotor of the upstream propeller and an outlet shaft driving rotation of the downstream propeller.
Claims6
A turbine engine including two contrarotating unducted propellers of an upstream propeller and a downstream propeller, the engine comprising:
- a power turbine connected via a step-down gearbox to rotors of the propellers,
- wherein the power turbine is mounted axially between the two propellers, and
- wherein the power turbine comprises
- an outer rotor constrained to rotate with the upstream propeller, and
- an inner rotor driving rotation of an inlet shaft of the gearbox, the inner rotor and the outer rotor of the power turbine being interleaved, the gearbox having a first outlet shaft driving rotation of the rotor of the upstream propeller and a second outlet shaft driving rotation of the downstream propeller.
Dependencies are inferred from the claim text.