Double-ducted fan
AssigneeThe Penn State Research Foundation
InventorsCengiz Camci, Ali Akturk
Life of this patent
Estimating the term…
Abstract
A double-ducted fan includes a hub, a rotor having a plurality of blades rotatably and coupled to the hub, a first duct, a second duct, and a channel defined between the first duct and second duct. The first duct circumscribes the rotor, and the second duct circumscribes at least a portion of the first duct. The second duct can be oriented axially upward such that there is an axial distance is between the leading edges of the first duct and second duct. The channel can be configured to direct air flow cross-wise to the first duct over a top of the first duct into the inlet side of the fan. The second duct can be movable relative to the first duct to adjust at least a portion of the channel. The length of the first duct can be different from the length of the second duct.
Claims20
A ducted air rotor comprising:
- a hub;
- a rotor coupled to the hub and having a plurality of blades;
- a first duct adapted to circumscribe the rotor fan;
- a second duct adapted to circumscribe at least a portion of the first duct and to define a channel between the first duct and the second duct.
A ducted air rotor comprising:
- a hub;
- a rotor couplable to the hub and having a plurality of blades;
- a first duct body couplable to the rotor, the first duct body defining a second duct and forming a channel therebetween.
A ducted air rotor comprising:
- a hub;
- a rotor coupled to the hub and having a plurality of blades;
- a first duct adapted to circumscribe the rotor;
- a second duct couplable to the first duct and radially spaced from the first duct, the second duct defining a channel between the first duct and the second duct.
Dependencies are inferred from the claim text.