h a l f b a k e r yRomantic, but doomed to fail.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
|
Electrically or mechanically powered servos move the rotor's
magnets in and out of position, creating the effect of the
electromagnets turned on each in time, in a regular electric
motor.
Springy variable displacement piston pump
Springy_20variable_...ent_20piston_20pump
Should work as a pump or hydraulic motor / engine [caspian, Jul 12 2015]
[link]
|
| |
So basically a wildly inefficient magnetic crankshaft? |
|
| |
It would't be any more inefficient than a mechanical coupling, save that it'd only transfer up to so much torque, either way. |
|
| |
Ok but it seems inefficient. |
|
| |
Isn't this how those fake perpetual motion machines work? The ones that consist of loads of magnets on a wheel, and the wheel spins when you hold a magnet close? |
|
| |
//...move the rotor's magnets...// you mean stator ? |
|
| |
The magnets could rotate (like flipping a coin), instead of reciprocating, which would bring more torque to bear and be smoother, passing off from one magnet to the next. |
|
| |
There exist things called "stepper" motors; perhaps this
Idea is a variation on that theme. |
|
| |
It says "mechanically powered" so you could use clockwork, a water wheel, a mouse in a harness, etc. |
|
| |
I didn't see even a hint at "over unity". I have no idea what
one would do with such a device but bad science it is not. |
|
| |
The springiness of a magnetic coupling could be an
advantage if you want to make a variable displacement
pump. The pump stroke length would change based on the
the fluid pressures - I'm not sure if that would be in a useful
way. But you can also change the pump stroke length by
using more magnets to tune the average distance between
the rotary magnet and the reciprocating magnet. |
|
| |
The internal motors could be mechanically run by springs
or a flywheel system, or chemically (via combustion). Coils
would defeat the cause and bring us back into the famous
paradox of bigsleep. And Ze No want to go there. |
|
| |
The point is this: One of the reasons high efficiency can be
achieved especially with BLDC motors although using a
variant rotation speed, is because the "firing" of the next
stage can be computed to perfection, whereas in
combustion motors it is much more reliant on
configuration and efficiency is confined to a certain small
range of speeds. So, with the perma-magnets being sent to
location each in time, computed exactly to the correct
timing, possibly we can achieve a good simulation of an
electric motor, without loosing too much to heat. |
|
| |