You wrote;
> PURE BS oxygen is an oxidiser NOT the FUEL. in a pure oxygen
> environment a lit cigar will explode and petroleum products will
> spontaneously combust (you wont see any fighter pilots wearing
> petroleum lip balm it will cause a first degree burn) but oxygen by
> itself in the presence of a spark will not combust!
> If you add other gasses like hydrogen or fuels like carbon it will
> oxidise the other gas/fuel and cause an explosion or combustion!
> I am sure that the engine relies on another principal to run, sounds
> interesting the simplest way that I know to get pure oxygen from air
> is through a sieve bed.
There are basically three approaches to this airmotor engine discussion;
http://www.keelynet.com/energy/airmotor.txt - Lee Rogers airmotor
http://www.keelynet.com/energy/boese.htm - expansion of liquid nitrogen
Well, I don't know absolutely that is true that oxygen isn't a
'fuel'...but yes, I'll agree with you that oxygen isn't normally
considered a fuel per se, more like a catalyst.
However, I was thinking more along the lines of the claims of the Joseph
Papp Inert Gas engine which uses a mix of inert gases (technically not
fuels either), which, being exposed to a spark will excite them with
sufficient explosive force to REPEL from each other and produce thrust
to drive a piston.
The gases are NOT BURNED, but are re-gathered and remixed to be
reintroduced in a completely enclosed engine.
The only input is the spark for the plug.
Interesting, Papp himself calls 'inert gases' FUELS...<g>.. From the US
Patent Office online database which goes from 1976-present;
http://www.uspto.gov/patft/index.html
4,428,193 Inert gas fuel, fuel preparation apparatus and system for
extracting useful work from the fuel
http://164.195.100.11/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=10&f=G&l=50&co1=AND&d=pall&s1=papp&s2='inert+gas'&OS=papp+AND+"inert+gas"&RS=papp+AND+"inert+gas"
I don't know how you would classify the airmotor engine, Rogers calls it
an airmotor and it uses a high volume air scoop.
I don't have the reference but I have read that the 'natural abundance'
of Nitrogen is 78% of the air we breathe but as far as I know it won't
explode in the presence of a spark, perhaps under pressure?
So to my view, Oxygen seems the more likely since it ranges up to about
20% or more depending on the local pollution levels and gas mix.
When I mentioned 78%, I am referring to the 'natural abundance' of
nitrogen in our atmosphere as it mixes with other gases in various
proportions, same for oxygen, but for the record here are the NMR tables
with what they are saying is the natural abundance of elements in and on
the earth;
Nitrogen is posted at;
http://kristall1.min.uni-hannover.de/nmr/nmrtable/n.htm
with a listed Natural abundance of 99.63%
Oxygen is posted at;
http://kristall1.min.uni-hannover.de/nmr/nmrtable/o.htm
with a listed Natural abundance of 0.037 %
It would be interesting if there is some explosive property of nitrogen
that has been missed. Does anyone know if that is so? I'm am certain
there are numerous variations in what is considered 'fixed' reactions
which if RE-investigated from a new perspective will provide new, novel,
phenomena that could be adapted for practical uses.
It is buying into the fallacious idea that all is known and what is
considered FACT has no permutations beyond the known, reproducible
reactions or characteristics....lateral thinking I believe they call
it..<g>..
==================================
An adjunct to this search using Papp+inert gas this also came up on the
Noble (Stirling type) heat engine that also uses inert gases;
3,949,554 Heat engine
http://164.195.100.11/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=17&f=G&l=50&co1=AND&d=pall&s1=papp&s2='inert+gas'&OS=papp+AND+"inert+gas"&RS=papp+AND+"inert+gas"
-- Jerry Wayne Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187