Toroid Electric Motor

[Lunkster]

Toroid Electric Motor

The toroid coil has properties that in theory could be
Advantageous for electric motor technology.
The attached sketch is my first attempt to design
A motor using those advantages.
Now I realize that there are similar designs out
There, but I am not sure if they are operated as
I am intending to operate them.
The sketch shows one rotor in it.
The motor would need to be expanded to
Two disks each offset from each other.
The reason for this is because there are two stages
of operation this motor.
There is a space between each toroid of the stator
Assembly.  This space is at least the width the toroid
Coil or more.
The power to one rotor assembly is at 50% of the time.
The power is then turned off and the power is applied to
the second rotor while the first rotor glides in the motor.
The idea is that when the core material is partly into
The gap of the rotor toroid coil when the power is supplied
To it, the rotor is pulled to align the core material with the
rest of the core of the toroid.  Once the power is turned
off, then the rotor will leave the toroid coil without any
breaking on the motor.

With two rotors, forward torque is on the motor through
The full travel of the rotor assembly.

What are the advantages of this design?
1,)   No braking
2.)  Magnetic field is contained in the core.  It takes less
Power to power a toroid coil than a solenoid coil.

This is theory and I want to know what other people think of
The design?

Lunkster

[Lunkster]

...

[Lunkster]

Hello,

This drawing shows how the angle of the
toroid coil may improve the forward torque
of the motor in theory.

Questions about design?
1.)  Will the core material in the rotor be pulled
into alignment with the toroid core material when
the toroid is powered?
2.)  Will the power to drive the Toroid coil be less
than a solenoid coil?
3.)  How much will the power draw on the toroid
coil change with loading on the rotor assembly?

Lunkster

[Lunkster]

Hello,

This toroid motor has been improved to operate with one
rotor instead of two and have forward torque through
160 degrees of rotation.  At the same time each coil only
needs to be power at a 25% duty cycle rather than the
50% of my last design.

Most toroid coils are round, bur they do not have to be.
So by changing the shape of the toroid, I can have toroid
coil on the left side of the stator assembly at the same time
have toroid coils on the right side of the stator assembly.
This allows the toroid coils to be very close to each other
in the pathway of the rotor movement.

The reason for the four toroid coil power cycle of the motor
is to eliminate any torque in the reverse direction.
As the power of L3 is turned off and the power turned on
to toroid L4, I did not want power on in coil L2 pulling on the
rotor in the backwards direction.  The L4 torque would win the
battle for rotor movement over L2, but why have this battle in
a two toroid operation in the first place.

So power is place on L1 first.  When the rotor core material
comes into alignment with L1, the power of L1 is turned off
and the power to L2 is turned on.  The rotor core material
is pulled into alignment with L2.  The power to L2 is turned
off and the power is supplied to L3.  The rotor core material
moves into alignment with L3.  The power to L3 is turned off
and the power to L4 is turned on.  As the rotor core material
comes into alignment with L4, the power to L4 is turned off
and the power to L1 is turned on again.  This L1 is into another
set of four toroid coil sets in the motor.  So the number of
toroid coils in the motor needs to be a multiple of four needed
to complete the 360 degrees of the stator assembly for the motor.

Questions:
How much will the movement of the rotor core material have on
the current draw of the toroid coil assembly?
How much does loading the rotor with a mechanical load affect
the current needed to drive the motor?
How efficient can this motor design be using Mu-metal as
core material for the toroid coils and rotor core material segments?

What are your thoughts of this motor design?

Lunkster

[Lunkster]

Hello,

Most people want to have a motor that you can easily
replace the old motor in the product they are building.
So this design is built aroun the shaft in order to do
that.

Not only that, it used only four toroid coils instead of
several like the disk toroid electric motor.

The toroid coils has the advantage of having the magnet
force contained in the coil.  There is a list of reasons that
why this is so great of a device.  The greatest thing is that
once the power to the toroid is turned off, the core will
no longer have any magnetic force in it.  This means that
with the proper power cycle to the coil, then there is no
braking or back EMF in my motor design in theory is
I understand it. 

I may be wrong. 
Why not build a prototype and see for yourself?

Lunkster