Steorn Debut's forever Battery at Slattery's

[Red_Sunset]

True true mr sunset we can also look at the thermodynamics in the doughnuts for simplification: 1)domain allignment= heat to the ambient.2)distortion of domains = battery work.3) domain collapse= heat from the ambient.heat traffic to the ambient and from the ambient is almost completely decoupled from our battery's chemical combustion.our only expense is field cancellation.we're trafficking ambient flow of heat with a switch basicly.

Profitis, Tinman,

With the focus on magnetic attraction & repulsion to toroid core and induction therein, the Steorn model relies on attraction to the core and repulsion beyond dead center by making the core unattractive to the receding magnet (core saturation). Beyond TDC, the core does not just become invisible, it will actively repulsed by disallowing its core space to be penetrated by the rotor magnet field. (no 2 magnetic fields can occupy the same point space, saturation will make sure of that)
In the approach phase, normal generator action will take place, let it be assymetrical (field entering left and right quadrant of the toroid), but the coil is disconnected there is no BEMF.
In the exit phase, if the chosen toroid polarity is chosen correctly, the direction of the coil field quadrant and he receding magnet field could greatly enhance each other.  The receding field is overridden by an increasing coil field into saturation, (motor-generator Bemf effect) since the magnet field effect on the toroid is asymmetrical, I would guess that BEMF would be small if noticed at all
Heat effects and losses we can overlook to keep the basic understanding simple.

Red_Sunset

[TinselKoala]

No, not repulsion, only reduced attraction when the toroid coil is "turned on" as the rotor magnet passes its closest approach, and even that is a small percentage reduction. Yet this is enough to make the rotor accelerate strongly. Current direction and magnet polarity don't matter for this "core effect".

[Red_Sunset]

No, not repulsion, only reduced attraction when the toroid coil is "turned on" as the rotor magnet passes its closest approach, and even that is a small percentage reduction. Yet this is enough to make the rotor accelerate strongly. Current direction and magnet polarity don't matter for this "core effect".

TK,

Up to the TDC position point,  the rotor magnetic field was using the toroid core as a preferable (low) reluctance path. 
At TDC, the toroid is energized to saturation, this expels the rotor magnet field out of the toroid core.  This distorts the rotor field into a shape that excludes the toroid core, now this modified rotor field shape applies a certain pressure onto the surrounding that forced it into this distortion. (this being the toroid) and therefore this pressure must result into a force, a repulsive force between rotor magnet and toroid core.  Or so I would think.

Red_Sunset

[hartiberlin]

The work required to saturate the core is influenced by that moving coil:

There is no moving coil !
Just a moving permanent magnet !

IE the PM induces in the toroid just like any other motor.

No, as the 2 toroidal coils on the ferrite cores are place 180 degrees out of phase in series !

Thus ALL INDUCTION by the moving permanent magnet is just cancelled out  !
No Generator effect at all !

Have again a look at the enhanced version, the Thomas Motor that explains it well:

https://www.youtube.com/watch?v=Su-v45BsFpI

[minnie]

  Stefan,
          as it speeds up the current does drop, that should give you a clue-
ie. the back voltage is limiting current.
                                        John.