"Chalo" wrote in message
om...
It looks like the fella behind this CVT hydraulic bike is trying to
raise some capital by selling off his prototype:

http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3641257316

http://www.powerengine.com

It seems like a cool artifact, if not particularly practical.

snip
3) Integral braking, which the inventor's website mentions, but which
does not appear to be incorporated into this bike

I think that having a bike's drive and braking functions integrated
into the same apparatus is the most desirable potential feature of a
hydraulic drivetrain. Check valves could be adjusted to match
available maximum braking torque to the load, and the force required
to close the braking valves would be miniscule compared to that
required to actuate normal rim or hub brakes.

snip

Chalo Colina

Thanks Chalo,
I really find these things fun - wish I had time to have a go at building
such impracticalities....

Theoretically instead of dispersing the braking energy through turbulence in
the hydraulic fluid you COULD use the pressure (via an accumulator) to store
the energy for future use.

Not suggesting its at all practical, but makes an interesting mind project.
Hugh Fenton