F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 29/36 (2006.01)
Patent
CA 2510157
An engine fan has fan blades capable of switching between a sucking and blowing operation when the fan is not in operation. An internal mechanism allows for blade pitch adjustment of all fan blades by twisting one blade about its own axis. End positions of the blade rotation may be held by forces generated by the rotating blades or held by a locking mechanism.
Dewar Kevin J.
Mccallum Jonathan E.
Flexxaire Manufacturing Inc.
Lambert Anthony R.
LandOfFree
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