Here is my question.
Consider a radial flux alternator that has two pole rotor at the center.now a typical orientation would be a N-S, But what i want to use is N-N orientation.The rotor would look like a N-S ring neo magnet that is magnetised along it's curve faces( i.e radially magnetised) with a outer north pole and inner south pole.This means that a north pole will always be facing the coil of wire.
Here is the trick, the neo magnet will be fixed, while a laminated iron ring of fairly larger diameter would be place around the magnet. It is this laminated iron ring ( which would act as an induced rotor magnet ) that would be rotated around the fixed ring neo magnet located at it's center.
The only merit of this configuration as i can imagine is that it allows you to use a bigger,stronger ring neo magnet and never bother about what it will take to rotate it as it will be fixed, rather it is the lighter laminated iron ring (which becomes a magnet by induction) that will be rotated.
A lighter rotor should mean less fuel burn to spin the rotor.Also it will make it more practical and convienent to use a superconductor ring magnet as a "fixed-rotor" which also you don't have to rotate.
Is it possible to build an efficient alternator as illustrated above
Consider a radial flux alternator that has two pole rotor at the center.now a typical orientation would be a N-S, But what i want to use is N-N orientation.The rotor would look like a N-S ring neo magnet that is magnetised along it's curve faces( i.e radially magnetised) with a outer north pole and inner south pole.This means that a north pole will always be facing the coil of wire.
Here is the trick, the neo magnet will be fixed, while a laminated iron ring of fairly larger diameter would be place around the magnet. It is this laminated iron ring ( which would act as an induced rotor magnet ) that would be rotated around the fixed ring neo magnet located at it's center.
The only merit of this configuration as i can imagine is that it allows you to use a bigger,stronger ring neo magnet and never bother about what it will take to rotate it as it will be fixed, rather it is the lighter laminated iron ring (which becomes a magnet by induction) that will be rotated.
A lighter rotor should mean less fuel burn to spin the rotor.Also it will make it more practical and convienent to use a superconductor ring magnet as a "fixed-rotor" which also you don't have to rotate.
Is it possible to build an efficient alternator as illustrated above