On Apr 30, 12:53=A0pm, Bernd Felsche <ber...@[EMAIL PROTECTED]
>
wrote:
> [Cross-posting to politics newsgroups zapped]
>
> Fran <Fran.B...@[EMAIL PROTECTED]
> wrote:
> >On Apr 30, 10:51=3DA0am, mimus <tinmimu...@[EMAIL PROTECTED]
> wrote:
> >> On Tue, 29 Apr 2008 06:31:07 -0700, a...@[EMAIL PROTECTED]
wrote:
> >> >http://www.cnn.com/2007/TECH/03/09/cars.100mpg.popsci/index.html
> >> All three of those techniques mentioned were interesting, and ought
to =
be
> >> combined in a four-seater.
> >I especially liked this portion:
> >The EPA has built a modified hybrid that uses a hydraulic system, not
> >a battery, to store braking energy. When you press the brakes, the
> >wheels drive a pump that compresses nitrogen gas, which is inexpensive
> >and inert. When you accelerate again, that compressed gas runs the
> >pump in reverse to help power the vehicle.
>
> That must be all of 20% efficient, at best.
>
> >Perhaps that's why Charles Gray, the director of the Advanced
> >Technology Division and one of the developers of the hydraulic hybrid,
> >can't contain his excitement about its potential.
>
> Potential to scam lots of $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
> from ignorant, greedy fools.
>
> >"I can hold a 500-horsepower hydraulic pump motor in my hand, and I'm
> >not a big guy," Gray says. Because the technology would eliminate the
> >need for a transmission -- the engine merely pressurizes the hydraulic
> >system, while the hydraulic motors power the wheels -- and several
> >other parts, it could be installed in a small car for almost no
> >additional cost.
> >|||
> >It sounds credible, and given that the applicability of this to
> >existing vehicle designs is very wide, very exciting.
>
> It's *incredible*. Grossly inefficient and hydraulic motors don't
> like to spin very fast at all.
Well I suppose the test will be if it can be proved in a vehicle built
as more than a prototype.
If the technologies they are working on can be used in existing or
modified vehicles, it would be useful.
Fran
|
