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US 12,000,309 B2Granted
Propulsor fan and drive system
AssigneeWhisper Aero Inc.
InventorsMark Douglass Moore, Ian Andreas Villa, Devon Jedamski, Xiaofan Fei
Life of this patent
Estimating the term…
Abstract
A propulsor fan and drive system having reduced noise emission is disclosed. The propulsor fan includes a blade fan having a plurality of blades. The blade fan is tensioned at the tips of the plurality of blades. By tensioning the tips of the blades, an angle of the blades is maintained during operation of the propulsor fan thereby reducing noise that may result from changes in the angle of the blades.
Claims24
A propulsor fan comprising:
- a tension ring including a body and a plurality of openings in the body, each of the plurality of openings extending through an entire radial thickness of the body of the tension ring;
- and
- a blade fan including a plurality of blades arranged in a circular ring, each of the plurality of blades including a first end, a second end that is closer to a center of the circular ring than the first end, and an airfoil between the first end and the second end, wherein the first end of each of the plurality of blades is disposed within a corresponding one of the plurality of openings of the tension ring such that the body of the tension ring surrounds a circumference of the blade fan, and a width of the first end of each of the plurality of blades that is disposed within the corresponding one of the plurality of openings is wider than a first end of the airfoil from which the first end of the blade extends where the first end of the airfoil is not disposed within the corresponding one of the plurality of openings;
- and
- a duct that at least partially surrounds the tension ring and the blade fan.
2 more elements
Dependencies are inferred from the claim text.