AV_Motor_Fullsize

AeroVantage ~ Motor - Full-size

Notes:

Proposed Features:

An electric motor is located at each PropRotor.

Optimally, the motor will be slow turning and thereby negate the need for gearing.

Each motor will probably have 2 (or more) totally independent electrical power and control circuits; redundancy for safety.

The coils, which are stationary, can be divided up among 2 or 3 independent power and control circuits, as mentioned above.

The only moving parts on an Outrunner style motor will be the permanent magnets and their outer encasement, plus bearings and stub shaft.

The motor is brushless.

It should be possible to put the rotor's pitch control mechanism through the center of the motor; hollow shaft.

Consider putting a Torque-Pitch coupling in each proprotor head. This will allow pilot and gyro instigated changes in electrical power to instantly adjust the rotor's collective pitch and thus a faster response. See http://www.unicopter.com/ElectrotorSimplex_Hub.html

For information on the reduction see; DESIGN: AeroVantage ~ Power Train - Planetary Reduction - Overview

Consider the manufacturing of a large hollow shaft electric motor. The hollow shaft will eliminate the need to have the commutator ring for the pitch (collective) actuator between the motor and the PropRotor, which would have increased the distance between the fore and aft PropRotors during cruise.

Hollow Shaft Motors:

See; UniCopter-UAV ~ Engine / Motor

Working Papers:

DESIGN:

B540

MAKE:

BUY:

Items:

DESIGN:

	Name	Item
	Both:
	DESIGN: AeroVantage ~ Motor - Full-size - Outrunner	1743
	DESIGN: AeroVantage ~ Motor - Full-size - Hollow Shaft	1731
	DESIGN: AeroVantage ~ Motor - Full-size - UQM - PowerPhase	1688
	DESIGN: AeroVantage ~ Motor - Full-size - Other	1706
	DESIGN: AeroVantage ~ Motor - Full-size - Cooling	1709
	1x2
	2x4

MAKE:

	Name	Item

Buy:

	Name	Item
	UQM Technologies
	EVO - Electric

Last Revised: July 17, 2009