no petrol

[charukrsnadasa]

aircaraccess. com

Tadamotors. com run on air.

only useless to those that can't see the value.

[ismokewead420]

it will have a use when the con rod goes from oil starvation...PARTS!!!

[progettoaladino]

esistono da tempo i motori dei compressori asini quel motore potrebbe girare anche con pressione d'acqua i pistoni salgono e scendono è caccerebbero acqua dallo scarico cosi' si potrebbe generare corrente super pulita e cosi' via brevettate questa mia idea ma già esiste le centrali elettriche asini

[nccguy1]

Could cost little to nothing to make the steam which could also run the engine. small scale: solar, large scale: external combustion. motor then runs a generator. this is the beginning of a great way to introduce limited small-scale electricity to areas of the world that have no gas stations, believe me, they exist.

[MrSmithyistheman]

be hard to run a car on lol

[decoysk]

COSTS MORE TO MAKE THE COMPRESSED AIR THEN GAS !

[Video85Man]

NICE!! now make a vid on how you did it.

[xzekiel143]

how that thing gonna mow anything?

[markzilla6969]

what kind of torque can you get out of that? if you built it out of carbon fibre and used 3 cylinders via valves would it be more powerful? simple 12 volt compressor, battery and alternator and it's a self sustaining motor? surely this would work even just for a power source... or am i missing something?

[LakeErieFising]

@markzilla6969

Yeah, there is no such thing as a self sustaining motor. This is 50 percent efficient at best. It probably takes twice as much energy to compress the air than what you would get out. It is a good idea though. Im going to make one and run it off steam from a wood boiler to make electric from firewood.

[markzilla6969]

@LakeErieFising ,good cheap fuel i suppose if you have access to lots of wood,it's almost old school!

[haffary]

no petrol but gaz yes stupide video

[TePupaTati]

in order to have a 100% working by its own motor, you will need to find a way to compress air with an atached dispozitive to your modified combustion engine. it should be like a cycle ..... spinning the crankshaft, you can produce electricity and with that electricity you can compress air wich you will have for input. that's my opinion.

p.s. sorry for my poor and rudimentary explaination. english is not my first language but i hope you get my point. keep up the good work! best of luck

[warpuck]

cheap explosive atmosphere motor?

[charukrsnadasa]

go to aircaraccess. com use httrack to copy and study offline.

Nitai Gaura Haribol

[jonnyasprin]

Did you modify the cam shaft lobes?

[spider6837]

what size engine did you use ?

[amoukalled522]

all this is an impact gun in a big case lol

[YamahaGuy1991]

well...never have to clean the carb!

[MuRkCLAN]

its really not working if you look at the crank shaft the "key" slot on the shaft so it really isn"t running... but if it is my bad im just saying but it is apering that way...

[JasonMann8]

nice, put alot of pressure into it, and put it on a go kart

[DarryllK]

wow thats umm.... useless

[sdmoffat]

lol, probably is useless.



[Inigo93]

@sdmoffat Nah, not useless. Useful in explosive environments where an IC engine would get people killed.

[ifhous56]

Just Run The Air through The Plug Hole... It works on a 2 Stroke weed wacker engine anyway

[blueeyes2015]

what brand and modelwas that?

[sdmoffat]

it starts with the pull start, so the motor runs the same direction as it was designed by briggs and stratton.

[MrMrtiki]

Only problem is the engine runs backwards & the oil splash pickup tab does`nt take oil to the top of motor .

[sdmoffat]

standard compressor line at work, so i guess 100 psi.

[christhetromboneguy]

@sdmoffat i dont think it could cut any grass but i shure as hell sounds cool!!

[FrontalTraction]

Go kart.

[pathosbedlam]

The French made Compressed air cars that were on beyond tomorrow tv show, as did an Australian guy who works in the Melbourne fruit markets. His one was a radial engine design about as big as a soccer ball. Both designs were awesome, but they missed the point. The engine running off air, could run a generator and have electric motors in each wheel, and use solar power to a reserve battery for night time if the compressed air runs out. Use one cylinder, charge the other. Never refuel again.

[NearAbbeyRoad]

@pathosbedlam

You are on the right lines. Engines will be used more as just generators with propulsion via electric motors - as per the Chevy Volt -not driving wheels directly . Engines are more efficient at a constant speed and can be optimised for constant speed running. The more efficient. the engines with a high power/weight ratio the better.

[LosCadaver]

No, because Diesel has a lower burning temperature than gas, therefore the operating temperature has to be greater than normal plugs require. ^^ Its the oil.

[nibbler125]

if you have the piston at the top of its stroke you can just give it air and it will start without manualy spinning the flywheel

[diysteve1969]

how much psi are you using

[krankiev]

these isiots in the comments are really pissing me off.

the camera isn't all that detailed so you can't see the CRANKshaft moving. The flywheel may or may not be on. can't tell due to the shroud. I am gonna guess it's still on so the pull start can be used because it won't always self start.

anyway, to the maker of this video, I think this is pretty cool! Could you show us how you did it if ya haven't already? (on my way to check for more vids now)

[krankiev]

idiots*

[oOoxelAoOo]

You can just about see the crankshaft rotating, if you look carefully at the rusty bit at the end. I'd imagine the flywheel was still attached since it wouldn't have enough momentum to come back to the top of the stroke.

I'm thinking he either took the exhaust valve out or changed the timings so there wasn't a compression stroke. And attached the intake to a compressed air feed.

[krankiev]

both valves would have to be in place otherwise the piston wouldn't get pushed down by the air. The cam however would need to be ground differently.

[nibbler125]

i just finished my air motor but i messed up the cams so it dosent run as good as it could

[sdmoffat]

all fun anyway.

[ntprofile]

The shaft is spinning, the flywheel is on the other side where the pull start handle is visible. If you spin the shaft you can use this type of engine as an air compressor.

[monaro632]

You can use ANY piston engine as an air compressor, as thats all they really are - self-driven air compressors

[ntprofile]

Yes, that is correct, dually noted.

[LosCadaver]

HEY WOAH now, no blasphemy this is close but no cigar,

A gas engine is a compressed explosion, where as an air compressor is just running air through the entire valvework, the problem with the air running through it isn't heating up eavenly, as it would with the gas so the pistons may be prone to warping, good theory but its hard on the motors.

[monaro632]

the only thing the air compressor lacks to make it run is fuel and an ignition source, id put money on some compressors being capable of running on diesel fuel, as it is compression ignited

[reap62]

@monaro632 some compressors are corkscrew style, sort of like a supercharger if youve ever seen the inside of one, its less complicated then the one way valves required to make a piston pump air into a tank and hold it there

[monaro632]

@reap62 well they are like a "screw" type supercharger, as there are many different configurations for superchargers, i should of clarified that i meant piston type compressors

[reap62]

@monaro632 no, you were right i was just adding in a fact

[NOWAdwaltz]

The drive shaft wasn't movin? WTF????

[produKtNZ]

Well it was, but they've obviously held something like a wirebrush against that shaft as it was running, causing the lighter metal rings round the shaft, which in turn causes a minor optical illusion :D

[COBmyband]

gas in the carb?

[AliasUndercover]

Cool. Now all you need is a boiler and you're set to mow the lawn. A steam powered mower would really get the neighbor's attention...

[TheRiskTaker]

haha a bunch of steam-smoke in the air hahahahaha

[ThomasXp]

the air just blowing on the flywheel fins?

[nltubeyou]

sweet boy, the flywheel is removed, it used to be at the side of the engine, where the piece of metal comes out now

[sdmoffat]

it doesn't need a flywheel, but to run smoother and to store more energy a flywheel would be better.

[nattis31]

free energy fail

[sdmoffat]

its not free energy at all, its actually a waste of energy because there is the air compression stage. This engine conversion is just to show an engine running on something else rather than petrol. you cannot make a perpetual motion engine. like if you stuck a wind generator on the roof of your electric car to run the electric motor, X = energy needed to move car, Y= wind generator power output, Z = friction and drag, Y would never get above X and Z would always add to X.

[coldsweatpayette]

i think the exhaust should be channeled into anther tank like a reserve and the noise would be gone just a thought

[psycopyro001]

but then you would have to repressurize the air coming from the exhaust because if you just kept it pressurized then the motor wouldn't run.

[coldsweatpayette]

i,ve heard of heating the air to get more from a tank you could atleast capture half but i imagine the back pressure would kill the torque/i do see what you mean i think we are all trying to think of something to get rid of oil depenencies its gonna be something silly i,m sure

[psycopyro001]

yeh that's not a bad idea but we would need something that expands more than air and yes the back pressure would kill it.

[JanicekTrnecka]

Some air powered engines use injection-like schematics, they suck the air from around, pressurize it by energy from flywheel, and then inject pressurized air from high pressure tank into "ombustion chamber" - result ? -> less problems with frozing up..and more efficency (may not b true , not proven by myself :))

[sdmoffat]

you still need an energy source to get the flywheel moving and as time progresses the friction and energy used by the system will drag the energy out of the flywheel causing the system to wind down and stop.

[sdmoffat]

back pressure is reduced by the other can lobe opening the exhaust valve as the piston reaches bottom of the stroke so the momentum of the crank( no flywheel on my motor) pushes the air out.

[sdmoffat]

yes, its allways going to be difficult to get rid of oil dependancies. Solar, batteries, inverters. oil is way to cheap even at us$ 67 a parrel or abouts.

[sdmoffat]

thats right, unless you took the exhaust air and compressed it using a compressor then you have to have either a petrol powered compressor or electric one attached, might as well just run a petrol motor. either way this motor needs compressed air wether its compressed using petrol or electricity. If you had a go-kart with this air motor and the air tank on it is attached to you compressor in the garage to recharge the tank, its gonna be fun zooming around for a wee while on the kart.

[UGLandrum]

@psycopyro001 its not that complicated people, Ive tried it, it works, but not always well, the lobes do need to be modified in order for the motor to work well at varying rpm's.

[sdmoffat]

yes, some sort of exhaust silence system would be good, not overly noisy though

[WaffenJunker]

nice

[sdmoffat]

thank you

[cornholeklink]

What the fuck is this good for?

[FerrilEwok]

what the fuck are you good for

[TuxedoRonny]

what the good are fucks for.

[sdmoffat]

True, a little bit of fun and to over populate the planet and use all its resources up. :)

[sdmoffat]

probably nothing at all, just trying to do stuff and occupy my time before i die.

Smile and have fun.

[vanepico]

We could just walk! it is renewable transport!

[sdmoffat]

yes, thats the best way and it will help you slim down and get fitter lust like nature intended it.

:)

[VanDeGraaff]

When compressing air you loose about 85% of the energy directly to heat. Extremely ineffective in other words.

Do never believe anyone saying air driven cars are good for the enviroment, it is a lie.

[vanepico]

If you could find a way of using the heat produced then it would be effectively 100% efficient, e.g a boiler or something

[VanDeGraaff]

Still hydrogen is a way better form of energy storage, you can store many many times more energy in the same tank. And, hydrogen is virtually 100% effective. The same thing can be said about battery powered electric cars.

Air powered cars are a leap in the wrong direction, but since most peolpe dont understand the science behind it they think its all good. We might as well drive around in coal powered steam cars.

[rcjg24]

it is not 100% effective. nothing im aware of is. there is always some loss or waste. with electric cars its the heat from the controllers and the resistance in the wires. im not entirely familiar with hydrogen, but if they run like an internal combustion engine then it is very much not 100% efective because not every stroke or motion creates useable power

[VanDeGraaff]

A combustion engine running on hydrogen is about 30-40% efficient. Pretty good compared to a diesel og gasoline engine. But when you use a fuel cell instead of a combustion engine, you can extract almost all the energy stored in the gas, the efficiency of such systems can be well over 95%.

But you do have a good point, the total energy loss in an entire hydrogen-electric car drive system will be somewhat higher. Heatloss in motors, wires and controllers definately reduce the efficiency.

[joness105639]

what is the total energy loss in a gasoline car drive system? I mean from the time the living matter died and decomposed to the time it became crude oil, to the energy required to refine it. What percentege of the suns energy is being released through burning gasoline reletive to the amount of sunlight first recieved by the plankton millenia ago.

[weyb]

Bollocks, you are mistaken.

Air engines are good for envoirment. Ineffectiveness does not metter providing the air is compressed using renewable energy (solar / wind / water).

[sdmoffat]

yes you are right.

[UP4012]

Don't run the engine like that, the vertical sahft needs to stay vertical in order for the conn rod to stay lubed.(Unless of course, the engine was garbage in the first place. Then you can do whatever you want) :-)

[sdmoffat]

im just using 100 psi

[davewrathall1985]

how much psi are you using? I'm building one right now. thanks

[holdenrules29]

im doing the same thing with a briggs and stratton 3.5 hp, and i thought that id run it on steam, but use some sort of magnifeing glass to heat the steam in the boiler, any advice????

[theleakytaps]

mabye a old hot watersystem

[sdmoffat]

Holden is the best.

IM not sure about steam, yes using solar to heat water and using that volume expansion to push a piston then the contraction of the steam to pull the other side of the piston.

[majorjerkwad]

Ok it was stated that it required a lot of energy to compress the air. What if with a stored battery, a hydrogen oxygen separation was used to create the oxygen used and the hydrogen could be used for a small hydrogen engine that would actually help power the battery.

[BowHunt1229]

...well then have it patented smart ass

[Karlfalcon]

Now, how about hooking that up to a steam boiler?

[yaventil]

thats cool

[ejvdo]

i would have put it in th espark plug outlet thing

[sdmoffat]

yes, i made an air engine in 1983 and used 2 tubes in the head via a double valve, but on this lawnmover i just used the inlet and exhaust valves instead, modding the cam enabled it.

[rangerssteamtoys]

Very nice, I made one also. It work on about 40 psi. Do you have oil in the crank case?

[sdmoffat]

a little oil for the bearings.

[sdmoffat]

An air engine is not an effecient use of energy, as previous people have posted comments, there is a lot of energy lost in the conversion process, i just made this motor run on compressed air to see if i could.

[sdmoffat]

i built up a cam lobe 180 degrees from the existing inlet and exhaust lobes so the camshaft does 2 operations per cycle eliminating the compression stroke. welded on an air hose fitting onto the inlet tube( carb removed).

[jack9102]

i'm doin the same thing only with a 3.8 tecumseh lawn mower that had a hole in the float, so alll the gas leaked out. but now i got sick of usin gasoline in THAT specific engine: so i switched to compressed air.

[randomguy9898]

so did you just modify the cam shaft with a metal grinder? i am trying to get one, and i saw this, so i wanted to know.

[jack9102]

make the cams foot-ball shaped ( Eliminate the compression cycle) .

[randomguy9898]

ok, that i what i thought.

[clackdwack]

just say a small 4 cyl. motor carries 1 litre of air per cylinder, 1 x 4000, 4000 being say max RPM would equal 4000 now multiply by 4 should give you 16000litres per minute at 4000rpm. i have 24cfm compressor at home. 1 cfm = 28.3 litres per minute so 24x28.3=679.2 litres per minute it looks to be a bit short, but using 10000psi carbon fibre tanks would be fine in this situation

[grizzbizz420]

hey grub thats just awsome man its so about time that someone came up with an alternatetive to fossil fuels but with the big corperations and the oil companys they know that the oil supplies r diminishing real quick and the harm they r doing to the planet man i hope this idea catchs on its a great idea

[Coffeeeggsbacon]

its not generating energy. it's simply using the energy stored in the compressed air. it would be very inefficient for use in a car because you would need a huge store of compressed air to get anywhere, and you still have the problem of compressing the air in the first place, which would more than likely be done by fossil fuel anyway

[sdmoffat]

Yes you are very right, thats why we still use fossel fuels, easy and convienent.

[jack9102]

well, its just something to do if you wanted to actually see one running. y' know? like if ur RLY bored someday an want somthing to do.

[slh950]

what about a direct injection of air though? there are even manual air compressors.

and if -solar- could top up batteries how long would they keep an air compressor going do you think? I'm not sure but it seems too compelling to beleive we can't acheive advancement in this area.

[Coffeeeggsbacon]

you underestimate how much energy it takes to compress air to this level. remember, every time you change energy from one form to another, it loses energy in the process due to inefficiency. if we can't make a solar panel to power a good enough electric engine, adding an air compressor in the middle of the process isn't going to make it easier, it's going to make it harder.

[sdmoffat]

so we need to use all rooftop space and cover in photovoltic cells, have battery systems as well as instant converters to run into the national grid, then we won't have to use fosselfuels and biofuels, plants will consume carbon dioxide and release oxygen, releasing unused sun energy back into space

[sdmoffat]

if we cut all the trees down to grow biofuel then we kill the oxygen producing systems and in the end we will die as well as all the defenceless creatures with it. the suns rays getting trapped in the global earth greenhouse ( carbon dioxide ) and other gasses cannot escape,

[sdmoffat]

biofuels produce carbon dioxide when burned and use oxygen in the process,

[sdmoffat]

the energy has to come from somewhere, bio fuels are a joke ( my opinion ),

[vilimaaman]

thia is true. they really are.

[randomguy9898]

its true, they would take away more by just making the space than they give us.

[sdmoffat]

One thing is, it takes energy to compress air into tanks to use in an air engine, solar ( pv ), wind, gas,

[sdmoffat]

I just wanted to prove to myself that i could make the air engine by converting a motor.

Hello Shaun. hows Canada today ?

[basilenglish]

Does it run fast enough to cut the lawns?

how many litres of air to do an entire lawn? say average house size. Just thinking you could make conversions for the lawn business.

[inspector784]

plan on doing anything with it?

[sam15317]

its cool how you made that motor run on air

[Herrmanator8]

wow...dam those walls must be scored!

[DrGreTuLR]

wouldn't it be possible to leave the cam shaft as it is and simply feed compressed air into the intake? it would only have one powered stroke in two turns, but that is what these are desgined to do right?

[Smidge204]

Sorry for the late reply...

The problem with that is it doesn't eliminate the compression stroke, which would effectively kill any power you put into it. The engine would try to recompress the air and end up getting stuck.

[clackdwack]

excellent, i am busy doing the same conversion to a 4 cyclinder motorcar engine, same principle of converting 4 stroke to 2 stroke.. double acting cam

[mat350z1]

how exactly did you modify the cam shaft

and how mutch air pressure are you using

[nibbler125]

i have an old gocart motor sittin round that dosent have a spark no more but has plenty of compression ao ill strip it and see if i can switch it around and make it run on air.

[nighawaaaxx]

i remember pulling a wipisnipper apart when i was a bit younger and ended up starting the motor on the ground. the throttle stuck open and all hell broke loose. it was jumpin round the ground and stuff... haha man it was loud, i shit my self

[crxdan]

Thaats cool, if i were you i would put in so much pressure that it would rev up to like 50000 rpm and then blow

[sdmoffat]

that would be funny, i guess the rev range that will destruct the motor would be the same as if it was running on petrol and that would depend on the structure of the motor and when it flys apart.

[crazy650c]

And the point of this was?

[sdmoffat]

just to see if i could do it, that was the point, putting an idea into practice. :)

[mwj1992]

thats a 4 stroke and you cant run a 4 stroke lawn mower on its side it will blow up and here's why the oil is not getting to the piston or any other part of it!!

[v12revolver]

a:it compressed air so theres very little heat b: your a FUCK off c: it blows up because the massive amount of heat and no luberacation D; he converted it to a basic 2 stroke so your an asshole

[adb140275]

he's right you know. FUCKTARD McSCHMUCK

[bikercc]

is that a 2-stroke or 4-stroke cus if u do that to a four stroke your screwed

[sdmoffat]

4 stroke, but i built up a lobe 180 degrees off the inlet and exhaust lobes on the cam, effectively turning it into a 2 stroke, 2 cam actions per one turn of the cam because normally its 1 turn of the cam per 2 crank revolutions.

[jorgerojo73]

Hello sdmoffat, could you tell how did you do this please? it is a great start to learn how to modificate a car on this energy. Thanks a lot.

[adb140275]

modificate?

[YOGAMAGIC]

TRY THAT WITH A ROTARY ENGINE

[NoobiiPower]

GO B&S :D

[mdmkoopman]

what kind of modifications are made and witch pressure does it use

[sdmoffat]

no, compressed air goes into the air/fuel intake. old air exits the exhaust valve. :)

[0hmygodimonfire]

is it going through the exaust?

[HedlessChkn]

haha, you made a life size airhogs motor!

[sdmoffat]

nice, lol

[sdmoffat]

it doesn't compress the air again, when the piston is at bdc the exhaust valve opens and the momentum in the crank lets the piston push the old air out.when at tdc the exhaust valve closes and the inlet opens and the compressed ait pushes the piston down, the cycle repeats.

[amfan12]

I would think that this would work better with a V-Twin engine since you would not have to rely on the gas trying to force the piston down, then the flywheel trying to compress it again.

[viviangely]

can you actually put that into a go kart frame i'm planning to put one of those on one.

[sdmoffat]

probably, you would need a tank with very high pressure air or gas so you would get a good length of time zooming around on the kart.

[LeviMan2001]

how much horsepower does that get? it'd be cool to see it on a go kart or somthing

[sdmoffat]

its only a 3.5hp sprint motor off a lawnmower, i still need to adjust the cam mod, and hp will depend on the air pressure going into the motor.

[LeviMan2001]

well i was wondering how much it had with commpressed air, it's probly less

[sdmoffat]

any compressed gas that can push the piston down with force will work, i dont know anything about fluid dynamics.

[xhanxhan]

you can work any piston engine by any pressure air,liquid,gas its not important gas is hot or cold

[OTAlucard]

did u see the air car ?

[sdmoffat]

I haven't seen the air car yet, night do a google search and have a look.

:)

[OTAlucard]

the air that comes out is it hot or cold ?

[sdmoffat]

cold, there is no heat, but if i increased the psi, maybe it would get warm from friction and speed

[sdmoffat]

nope, I worked out from an air engine i built in 1983 and i got a free engine a little while ago and converted it.

[OTAlucard]

i think he took the carb off ?

[sdmoffat]

the carb is totally removed and i have welded on an air hose fitting.

[airportlakesestates]

interesting, how did you modify it?