Variable pitch fan with fan cranks and axle housed shifting...

Details Variable pitch fan with fan cranks and axle housed shifting... Variable pitch fan with fan cranks and axle housed shifting...

F - Mech Eng,Light,Heat,Weapons

04

D

230/3

F04D 29/06 (2006.01) F04D 29/36 (2006.01)

Patent

CA 1328433

ABSTRACT OF THE DISCLOSURE A fan assembly has variable pitch blades adjustable from outside the assembly while the fan is operating so as to alter the volume and direction of the induced airflow. The fan blades have an airfoil configuration such that air is moved by the fan in either direction with equal efficiency. A novel lubricating system is disclosed.

579151

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