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US 2014/0154083 A1Published application
Fan blade with flexible airfoil wing
AssigneeAirstream Intelligence, LLC
InventorJonathan David Chelf
Life of this patent
Estimating the term…
Abstract
A fan assembly is disclosed that includes one or more fan blades, each fan blade having a flexible airfoil wing. A curved, flexible wing is connected to a main spar element located between the upper and lower portions of the curved, flexible wing element. The curved, flexible wing forms the entire upper surface of the wing, the entire leading edge of the wing, and a portion of the lower surface of the wing.
Claims9
An apparatus comprising:
- a flexible fan blade including a main spar and a curved, flexible wing, the lower surface of the main spar connecting to a lower portion of the curved, flexible wing, the lower portion of the curved, flexible wing extending to a leading edge of the curved, flexible wing, the leading edge of the curved, flexible wing extending to an upper surface of the curved, flexible wing, thereby creating a flexible airfoil of the flexible fan blade.
A fan comprising:
- a plurality of flexible fan blades connected at the root end of each of a plurality of multiple main spars that are connected to a common fan hub, each of the flexible fan blades comprising a main spar and a curved, flexible wing, the lower surface of the main spar connecting to a lower portion of the curved, flexible wing, the lower portion of the curved, flexible wing extending to a leading edge of the curved, flexible wing, the leading edge of the curved, flexible wing extending to an upper surface of the curved, flexible wing, thereby creating a flexible airfoil of the flexible fan blade.
Dependencies are inferred from the claim text.