ElectrotorSloMo

Electrotor-SloMo ~ Rotor Aerodynamic one

Overview:

There are two rotors, which are interrelated coaxially or bilaterally (intermeshing, interleaving or side-by-side).

The rotors may have two or three blades.

The blades will be 'absolutely rigid' in flap and lead-lag but will be torsionally soft about the pitch axis.

One slow turning electric motor (no gearbox) will be located in the hub of each rotor, except for the coaxial where the two rotors may share a common motor.

Drawing:
This drawing is current for all configurations.

This drawing is from OTHER: Helicopter - Inside - Principal Assembly - ELECTROTOR-SloMo (Backpack, Ultralight & UAV)

All the following drawings are obsolete

For Side-by-Side and Interleaving Configurations:

Re gyroscopic precession ~ only the rotors are revolving, not the stators.

This arraignment will not be viable for the Intermeshing configuration due to its high and large diameter.

Drawings:

For Intermeshing Configuration:

If the actual blade starts out further (ie. the spar goes out beyond the other hub) then from the above picture it looks like; 1/ the motor can be moved up higher on the rotorhub, 2/ the hubs can be moved closer together, 3/ the V angle can be reduced.

This is the current choice:

Not that the motor's rotors are 'geared' together for synchronization.

The drawing below allows for a static mast and the control rods to go down inside this mast.

A possibly better alternative is to attach the blade grips to the motor's rotor, as per drawing #2 above, and reduce the diameter of the motor by having multiple axial flux rotors and stators or a deep radial flux motor with a smaller diameter. This will probably require electric pitch control devices located at the root of the blades.

Working Papers:

DESIGN:

A122

MAKE:

A161

BUY:

Secondary Grouping:

	Disk: For Interleaving configuration

	Hub - ARR This will have the Torque-Pitch.
	Blade - ARR This will have the Aerodynamic Blade Twist.	Similar to UniCopter's but smaller etc.
	Assembly:

	Hub - D2+3 - General:
	Hub - D2+3 - Torque-Pitch-RRPM
Old	Hub - D2+3 - Torque-Pitch Coupling by D2
Old	Hub - D2+3 - Bi-teetering

Same Page ~ Different Craft: ~ Electrotor-MicroLite ~ Electrotor-Plus ~ Electrotor-Simplex ~ SynchroLite ~ Dragonfly ~ UniCopter

Initially displayed: August 6, 2006 ~ Last Revised: January 22, 2010

The above utility invention is openly and publicly disclosed on the Internet to negate an entity from patenting it, to the exclusion of all others whom may wish to use it. ~ Reference patent law 35 U.S.C. 102 A person shall be entitled to a patent unless - (a) the invention was known ... by others in this country, ..., before the invention thereof by the applicant for patent.