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US 10,538,311 B2Granted
Propeller diverter duct
AssigneeSikorsky Aircraft Corporation
InventorsLance Halcom, Bryan Kenneth Baskin
Life of this patent
Estimating the term…
Abstract
A diverter duct for a propeller includes a second duct element having a semi-annular wedge shape, which is pivotably coupled to the first duct element, a first drive structure configured to drive a pivoting of the second duct element relative to the first duct element and a second drive structure configured to drive a rotation of the first and second duct elements about an axis of rotation of the propeller.
Claims15
A diverter duct for a propeller, the diverter duct comprising:
- a first duct element, which is supportable about the propeller, the first duct element having an annular shape;
- a second duct element having a semi-annular wedge shape, which is pivotably coupled to the first duct element;
- a first drive structure configured to drive a pivoting of the second duct element relative to the first duct element;
- and
- a second drive structure configured to drive a rotation of the first and second duct elements about an axis of rotation of the propeller.
2 more elements
A diverter duct for a propeller of a compound helicopter, the diverter duct comprising:
- a first duct element, which is supportable about the propeller, the first duct element having an annular shape;
- a second duct element having a semi-annular wedge shape, which is pivotably coupled to the first duct element;
- a first drive structure configured to drive a pivoting of the second duct element relative to the first duct element in a direction oriented transversely relative to a longitudinal axis of a tail of the helicopter;
- and
- a second drive structure configured to drive a rotation of the first and second duct elements about an axis of rotation of the propeller, which is substantially parallel with the longitudinal axis of the tail.
2 more elements
Dependencies are inferred from the claim text.