Serious HES derivative project proposal

[bistander]

For what do all these motors have an iron laminated ring between the stator and rotor?
After all, this shunts part of the stator magnetic flux.Making the magnetic flux weaker.

Hi kolbacict,
Verify pieces are ferrous. Look like Aluminum alloy to me.
bi

[kolbacict]

Nope. Tried with a magnet. iron.
I will even say more, I removed this ring.
As a result, the current consumption has doubled, and the motor began to rotate poorly.

[bistander]

Nope. Tried with a magnet. iron.
I will even say more, I removed this ring.
As a result, the current consumption has doubled, and the motor began to rotate poorly.

Interesting. Rotor appears to be cast cage type for induction motor. Perhaps interpolar shunts cause delay flux simulating RMF. How are the 4 coils wired to source? AC or DC? No clues from where it came?
bi

{edit}

It is a shaded pole induction motor. Google search (images) displays examples of iron surrounding rotor like that. It is not obvious where the shorting(shading) coils are, perhaps cast into the housing end caps on the rotor bearings. Single phase AC fed.

[kolbacict]

Perhaps interpolar shunts cause delay flux simulating RMF. How are the 4 coils wired to source? AC or DC? No clues from where it came?

It don't have interpolar shunts.
Very often used in tape recorders and record players.

[rakarskiy]

It don't have interpolar shunts.
Very often used in tape recorders and record players.

Want to check if the pump will work? 
https://www.youtube.com/watch?v=vZX0m6BV_v0&t=1s