Insight of an air car engine

[ahmedmasjhasyed]

Its a signature of prosperity of future.

Professor Masiha

Pakistan

[gizmoguyar]

I've been staring at this thing for minutes and I can't seem to figure out how the valves would be positioned. The two holes at each "chamber" must be intake and outake, but there's got to be a cam or something operating valves.

[deathparade32]

@gizmoguyar i agree, i dont see how this can run as the valves would be a nightmare to design, plus the valves would have to be driven which add to the overall inefficiency. a passive valve system like with a regular rotary vane motor would be more efficient.

[gizmoguyar]

@deathparade32 I actually found a picture a while ago after watching this. The end cap (missing here) holds a cylindrical "distributor," that rotates with the axel, feeding air to the intake half of the chambers, and letting it escape on the other half. It's positioned just ahead of the "top dead center" of each chamber.

[deathparade32]

@gizmoguyar ty for the info, now the design actually makes sense!

[mikehanoo33]

The first successful application of the pneumatic motor in transportation was the Mekarski system air engine used in locomotives. Mekarski’s innovative engine overcame cooling that accompanies air compression by heating air in a small boiler prior to use. The Tramway de Nantes, located in Nantes, France, was noted for being the first to use Mekarki engines to power their fleet of locomotives. The tramway began operation on December 13, 1879 and continues to operate today;

[Terryblount]

Does it make sense that a motor designed to COMPRESS air could run backwards an run the most efficiently to RELEASE air?

[yzorg]

too much friction .. but nice idea

[mephil8800]

well it's currently the most efficient air engine in the world... so much for the friction. there is supposed to be next to none... because the air cushions everything

[fizzguts]

"well it's currently the most efficient air engine in the world"

So they CLAIM

Pity there are no power curves vs air consumption, independently tested or otherwise, to PROVE that

[mephil8800]

@fizzguts

it's a pity nobody making comments would have a clue if it would work or be efficient etc. nobody has a clue about "air powered engines". so you can only go off whats said by those in the know, the creators of this engine.

[fizzguts]

Aye well hmm The air drill in most workshops is a rotary vane motor and going to the GAST web site there are pdf's of air motors with exactly the power consumption data I mentioned.

The stupid thing is there is hidden behind the scenes in industry millions of air motors and if there was a "new" design that was twice as good it would sell. Seems a STRANGE way to promote an idea by never getting an independent test done.

Of course if you are just looking for suckers opps "investors" ;-)

[mephil8800]

@fizzguts

well yeah if you look at the design of this air motor as opposed to the air tools designs, they're basically the same. ( i looked into making a pushbike with a air power tool as the motor and a couple of air tanks), even the tiny disc sander had 1.2 horsepower. but anyway, this is a vaned air motor, it's just redesigned.

[spark300c]

@fizzguts this engine is not exactly like a rotary vane motor that is open source. The vanes are not mount on rotor and to the housing. Any way since so critical may you should see about doing a test on this engine. All that is needed is a dynamometer , flow gauge and pressure gauge.

[fizzguts]

@spark300c This is the Engineair motor from of Australia. I have the spread sheets for the air flow at the operating psi and the HP produced. These were supplied by Engineer to investors. From them it shows allowing for no losses from the pressure regulator the 6hp engine would, at the Engineairs claimed 90% efficency, run for about 5 minutes off a standard 12L (internal volume) dive tank. In the real world with regulator and other losses you will be lucky to get a 2 minute run.

[laoztou]

请问？这种澳大利亚的气动发动机，在中国那里可以买的到？价格多­少？

[3089280288]

rotary is probably the way to go. Direct linear propulsion.