Torque A Verters

[Bobocop]

I haven't read anything about these units ever being tried on e-bikes
http://www.rnrfabrication.com/torque.htm

i would think this would make a nice transmission for a bike.

anyone know if an electric motor (like a 1000watt) can handle this unit ?

 

[Miles]

They are not very efficient - this doesn't matter so much when you have the energy density of petroleum, but for electric......

 

[Bobocop]

Oh well, scrap that idea
thanks Miles

 

[Miles]

I remember someone on here trying one and finding out the hard way

 

[John in CR]

I've got one on my emoto. It works okay I guess. I took the springs off of the drive pulley weights, so it has immediate engagement, but that also makes it noisy at low speeds as the centrifugal weights bang around a bit. Regarding efficiency, Comet has brought these CVT's along from the old days, and I seem to remember 92% as the efficiency number. WRT to use on an ebike, it's just not practical. It's heavy and takes up a lot of real estate. Plus I don't see it doing much for you unless you've got some monster steep hills to climb, but then the gearing range of 3:1 or so isn't going to be enough anyway.

John

 

[Bobocop]

Sounds like it's not worth the trouble.
I like this idea that miles put up here --> http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=7679&start=0
that would probably work better.