GUY F BORGES
Engineers in Fall River, MA

License number
Virginia 0402014077
Issued Date
Apr 15, 1983
Expiration Date
Dec 31, 2018
Category
Professional Engineer License
Type
Professional Engineer
Address
Address
Fall River, MA
LicenseFiles verified this license of Feb 15, 2017 at the The Virginia Department of Professional and Occupational Regulation.

Professional information

Guy Borges Photo 1

Flow Reversal System For Axial Fan

US Patent:
7179054, Feb 20, 2007
Filed:
May 14, 2004
Appl. No.:
10/847681
Inventors:
Guy F. Borges - Somerset MA, US
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
F04D 15/00
US Classification:
416 31, 416137, 416153, 416159, 416164, 415 13, 415129, 454257
Abstract:
An axial fan has a blade support wheel coupled to a drive shaft. A disk is positioned about the drive shaft adjacent the wheel. A torsion spring is coupled to the wheel and to the disk. When the torsion spring is in tension, the disk is poised for a relative rotation about the drive shaft. A lock couples the disk to the wheel when the torsion spring is in tension. Fan blades are supported by the wheel, and are coupled to the disk. Rotation of the drive shaft rotates the fan blades generating a specific flow direction. To reverse the flow direction, a release mechanism uncouples the lock from the disk and wheel causing the disk to experience rotation about the drive shaft as tension in the torsion spring is released. The disk's relative rotation re-positions the fan blades reversing the flow direction as the drive shaft continues to rotate.