Re: French Air Powered Motor
LARRY SULLIVAN ( polymercanada@bc.sympatico.ca )
Mon, 15 Feb 1999 08:44:24 -0800
Jean-Pierre Lentin wrote:
>=20
> Hi all !
>=20
> Very interesting discussion on the air powered motor. It reminds me of =
a new
> air powered motor and air powered car that is gathering some news conve=
rage
> in France since a few months. Actually we wanted to invite the inventor=
, Guy
> Negre, at Science Frontieres festival last january, and I'm sure he wou=
ld
> have been a big sensation, but he was not available at the time
>=20
> So I have no direct contact with him yet and so far I'm relying on an
> article published in Science & Vie, the French leading popular science
> magazine, in June 1998, called "Le moteur zero pollution". Of course I =
could
> find more info if needed.
>=20
> NB - there is no weird science or over-unity stuff in this motor (a fie=
ld
> that Science & Vie wouldn't touch with a 10-feet pole), but it looks li=
ke an
> economical and non-polluting transport invention, apparently very
> clever.and carefully designed. Guy Negre, a former moter engineer for c=
ar
> racing and aeronautics, works at it full-time since 1991 and has now a
> company, CQFD, and a team of 18 engineers and technicians, several
> prototypes, and world-wide patents (actually there are 20 different pat=
ents
> for the basic motor and its annex inventions). Reportedly Mexico-City
> (arguably the most air-polluted city in the world) is investing in a fa=
ctory
> right now, in a project to equip all the city's taxis.
>=20
> The air-powered car is an urban vehicle (an hybrid version exists, powe=
red
> by gasoline for long distances). It runs at a maximum of 100 km/h (abou=
t 60
> miles/h), with a 60 to 80 CV motor, turning at 7500 RPM, weighing 34
> kilograms. 15 liters of compressed air permit 1 hour of driving, and
> containers may hold up to 300 liters. Refueling can be done at home wit=
h
> outside air and electric compressor and lasts 4 to 5 hours, or could be=
done
> at specialized compressed-air stations in 3 minutes.
>=20
> Now, the principle of operation, as described by the article. Here is m=
y
> attempt at translation :
>=20
> 1 / Outside air is sucked in. At the same time the "soupape de detente"
> (release valve or relaxation valve ?) lets out from the expansion chamb=
er
> the air used in the preceding cycle.
>=20
> 2 / Air is compressed to 21 bars in the expansion chamber. Its=20
I thing not, maybe compressed air is released into the expansion
chamber
temperature
> reaches 400=B0 C. At the same time air relaxation pushes the piston, an=
d this
> is the motor's cycle.
>=20
> 3 / Compressed air is injected, between 40 and 50 bars, temperature 25=B0=
C.
> Shock between the 2 fluids generated higher pression, then over-heating=
of
> the mixture (here resides the inventor's secret). At the same time the
> exhaust takes place.
>=20
> 4 / The release valve opens itself towards the release/exhaust cyclinde=
r,
> while air is sucked in for the next cycle.
>=20
> Hope it makes some sense... :-)
I do not thing this is a gas-phase car. Sounds like a air assist. That
is super oxidizing the gas mix with pressurized air or running part of
the car on gas and another on compressed gas.
Larry
>=20
> -----------------------------------------------------------------------=
----
> Jean-Pierre Lentin
> -----------------------------------------------------------------------=
----
>=20
> -------------------------------------------------------------
> To leave this list, email <listserver@dallastexas.net>
> with the body text: leave Keelynet
> list archives and on line subscription forms are at
> http://dallastexas.net/keelynet/
> -------------------------------------------------------------