GUY F BORGES
Engineering in Fall River, MA
License number
Massachusetts 40776
Issued Date
Jul 23, 1998
Expiration Date
Jun 30, 2018
Type
Mechanical Engineer
Address
Address
Fall River, MA 02726
Professional information
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.