US 12,358,618 B1
Hollow multi-blade rotor, assembly, and method of manufacture
Francois Landry, St-Hippolyte (CA); Olivier Blanc, Pointe-Calumet (CA); Daniel Del Rossi, LaSalle (CA); and Maxime Lapalme, St-Lin-Laurentides (CA)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Jan. 12, 2024, as Appl. No. 18/412,159.
Int. Cl. B64C 27/32 (2006.01); B29D 99/00 (2010.01); B64C 27/473 (2006.01); B64C 27/48 (2006.01); B64U 30/29 (2023.01); F01D 5/14 (2006.01); F01D 5/28 (2006.01)
CPC B64C 27/32 (2013.01) [B29D 99/0028 (2013.01); B64C 27/473 (2013.01); B64C 27/48 (2013.01); F01D 5/147 (2013.01); F01D 5/282 (2013.01); B64C 2027/4736 (2013.01); B64U 30/29 (2023.01)] 9 Claims
OG exemplary drawing
 
1. A hollow multi-blade rotor comprising:
a hollow hub area configured to couple the hollow multi-blade rotor to a motor, the hollow hub area comprising:
a main hub aperture; and
a plurality of bolt apertures;
a plurality of hollow blades; and
an internal hollow cavity that runs continuously through the plurality of hollow blades and the hollow hub area, wherein the hollow hub area and the plurality of hollow blades are a single member; and
a plurality of edge layups internal to the hollow multi-blade rotor, wherein the plurality of edge layups includes a first edge layup disposed adjacent, at least in part, to a leading edge of a first hollow blade of the plurality of hollow blades and adjacent, at least in part, to a trailing edge of a second hollow blade of the plurality of hollow blades, and a second edge layup disposed adjacent, at least in part, to a trailing edge of the first hollow blade of the plurality of hollow blades and adjacent, at least in part, to a leading edge of the second hollow blade of the plurality of hollow blades.