Engine to Compressor? Answered

I am planning on making a very high volume compressor from a small engine.  I plan to adjust timing and stuff accordingly.  I just wan't to make sure an engine can handle the pressure.  I assume it can because of the explosions it can contain but I just want to be sure it can handle 125-200psi.  And also, is 2 stage really necessary or can I just push all the air in in one stage with a couple pistons.

Question by jj.inc   |  last reply


Air Compressor

I just found this site a week ago and thought somebody might like to check out a brand new homemade, and a rebuilt modified. I made the older one for a buddy of mine about a year ago. The new one sports a 12 horse Honda from a generator, a dual stage pump from (Chicago Pneumatics,I think)5hp min., and an old 250 gal. LP gas tank. Havent fired it off yet, but will try to get some video on it when I do. The old one will go from 0-150lbs.,in about 2.5-3min!

Topic by turn-n-burn   |  last reply


Air Compressor RPM? Answered

I found an old cast iron 50 + year old 2 stage air compressor and I was wondering what RPM's I should run it at.  My dad says it is running much slower than he remembered and it is going 323 RPM's compared to the original gear ratio that would have run at 269 RPM's.  That should be dramatically faster, so could going too fast decrease performance, or something, or is there a reason the original motor may have slowed down? The RPM's are a complete guess based upon the 1725 RPM motor average.  The only reason I had to change pullies was because the original had FLAT BELTS (awesome) from back when people cared and build stuff right.  Now I have a v-belt on it and the compressor pulley wobbles by like 2 inches and the thing is out of line, but these shouldn't be slowing it down. Basically I need to know what RPM's I should be running the compressor at. P.S.  It can double as a vacuum  pump and it uses old fashion check valves!

Question by jj.inc   |  last reply


curtis air compressor?

I have a 1925 Curtis Air Compressor and we are rebuilding it to be a working show piece. The General Electric Motor is  running the Curtis Compressor, and we need the manual of the motor/compressor/tank or all of the Information about it that we can get ahold of so it can be rebuilt  to the exact color, wiring , ect, so we can put it back to its' original  origin. Here is the information from the plate that was barely  readable. We had to remove to plate and put it under a lighted magnifying glass and this is what we managed to get from the plate. >> >> GENERAL ELECTRIC MOTOR  1.50 - HP >> GENERAL                                 ELECTRIC >> REPULSION - INDUCTION - MOTOR >> MODEL: 5SCR224 C 53     FRAME - 224 TYPE - SCR >> CYG-60   SINGLE PHASE                     SPEED EJ 1760 >> VOLTS 110@15.0 AMPS       VOLTS 220 @ 7.5 AMPS >> SERVICE FACTOR >> 1.50 HP CONTINOUS                    LN 5890 >> THE CURTIS COMPRESSOR   Size:   3X3.50 No:   LB428A PAT. AUG. 31-1915   NOV. 30-1915  NOV. 14-1916 NOV. 8-1921    KEEP BASE FILLED BETWEEN HIGH AND LOW LEVEL OF OIL WITH GOOD AUTOMOBILE CYLINDER OIL. CLEAN OUT BASE ONCE A YEAR. RUN AT LEAST 250 REV: PER MIN. MANUFACTURED BY CURTIS PNEUMATIC MACHINERY COMPANY ST. LOUIS USA    Q-82  Any thing about this compressor would be helpful. you can e-mail me at:  mar5jer@msn.com

Question by eljero   |  last reply


Hydraulic Cylinder Compressor? Answered

Ok, so I need to make a compressor that reaches 4500 psi.  I live in a farm town and my dad has a tractor so I wondered if I took two identical hydraulic cylinders and filled one with what I was compressing, and the other I powered with the tractors hydraulic system, if I would be able to achieve high pressure and fill tanks, assuming the hydraulic pump and cylinders are rated for that pressure.  Or could I just use a hydraulic compressor.

Question by jj.inc   |  last reply


Manual air compressor

I had this idea just drop on me a few minutes ago and I was wondering if anyone could give me some feedback on if something like this would be feasible or not. Also if anyone thinks it's a good idea just go ahead and build it because I dont have the tools or space for something like this in any case. The idea is to have some sort of tank with a large internal volume, cut it of at the top and arrange a sort of secured piston with a heavy weight on top, attach it all to a frame so that the piston stays level and secure. The piston with the weight on can then be connected to a multi-stage pulley system to allow one to lift the  heavy weigth, sure it would take a long time but for a manual air compressor it should be feasible Then at the bottom of the tank one would have a high pressure release valve with some sort of standard connector for transfering the compressed air to a sort of pressure tank for use. I never saw anything like this before, although I'm sure someone must have done it at one point or another. So what do you all think? Any input?

Topic by wolty   |  last reply


About air compressor?

I need good explanation on how air compressor works, parts of a compressor, how to calculate pressure of air required to lift loads . please help.

Question by mano.lingam.3   |  last reply


Turbocharger Compressor Characteristics.

Hi, I am working on building a micro jet engine, and I have to select between the following compressor wheels  http://www.ebay.com/itm/Turbo-charger-Compressor-Wheel-H1C-H1E-3599644-Ind-56-00mm-Exd-83-00mm/262249425295?_trksid=p2047675.c100623.m-1&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D40130%26meid%3Da741d83f102946f8ab1a494b9f98692c%26pid%3D100623%26rk%3D4%26rkt%3D6%26sd%3D301844324395 or http://www.ebay.com/itm/HE351CW-HE431V-HX40W-HY35-Turbo-Turbocharger-Compressor-Wheel-4035879/111866311491?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D20131003132420%26meid%3D42565bcbcf264701aa897ff600931d8c%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D301844324395. However the seller does not seem to have any data regarding the wheels max RPM, slip factor, blade angle, and pressure gain at different RPM's ( probably a graph ). Is there any way I can get these piece of information about the wheels especially the first three. Most of the wheel parameters like the gas tangential velocity, radial velocity and the mass flow rate at the wheel's outlet need these values to calculate. Thanks for any help.

Question by fictionlife1659 




Is there any projects do do with an old compressor??? Answered

I have a old Campbell Hausfeld that wont compress air I would like do do something with it instead of thring it out. Any ideas???

Question by west49rules   |  last reply



i want to know the alternatives for the refrigerant R11 which is available in india now..

I will be helpful if i get the all the properties of the alternate refrigerant............and if i get the p-h diagram for thesame..

Question by karthikraja_09   |  last reply


small and quiet air compressor for a single pipe organ pipe?

I've got a 2m long pipe (that I can blow with my lungs). I want to make it into a doorbell but don't have a compressor. I tried a car horn compressor but it is so loud that it totally drowns out the pipe! Any other ideas?

Question by matthewvenn   |  last reply


how do I make a air brush compressor from fridge? Answered

Hi, how do I make a compressor to run a air brush spray gun from a fridge compressor,  Iv'e taken a compressor from an old fridge, which  of the pipes do I need to block?  Any help appreciated         micky g 

Question by mickyg88   |  last reply


flywheel pulley size?

I need to know what size compressor flywheel pulley to use for a 3450 rpm motor compressor 1500 rpm dia. 13 3/4"

Question by block1102   |  last reply


Recommendations for safe pneumatics?

I'm looking for a pneumatic setup for an air tank and a blow gun that is safe enough to use around school kids.  I want to provide pneumatic feedback to give the sensation that they were hit by a small gust of wind.  Safety is the foremost concern on this.  What size tank, psi, and regulator should I use?  Also can this small 'gust of wind' be controlled from a USB port?

Question by codingJoe   |  last reply


A/C Compressor Lubrication Help? Answered

I am almost completed an A/C compressor compressor.  I wanted an air compressor, and I decided to build one from an A/C compressor.  Before I finish it up, do I need to have some oil being fed through the system and separated before the tank, or can I run it straight with just air coming in and no oil? Thanks

Question by Electric Spectre1   |  last reply


need air compressor help Answered

I have a air compressor that uses a car cigarette lighter for power is there any way i can convert it to use a house plug?

Question by fidgety2   |  last reply


Aircon or fridge compressor to solar?

Sometimes I get weird ideas that I can't shake off :)When I was looking into options for a 12 compressor fridge freezer combo I was stunned.You a get a fullsized frrezer for far less!A further check revealed that it is mainly the linear compressor that makes the price plus the usual mark ups.Efficiency and especially start up is far better with thes compressors than out standard rotary and piston drive models.But why would it be so impossible to replace the motor from a standard compressor with a brushless DC one?I focussed on three things for the start:Lubrication, cooling and sealing.There is no such thing like a simple compressor with a piston system that does have some leaking.So apart from the noise the enclosure really needs to be welded and sealed again.Everything moving inside is lubricated by the drive shaft - it acts like a little pump.Same for the cooling of these vital parts.The oil flow exchanges heat through the big metal housing.A replacement motor would need to be suited to run in such a messy enviroment.Of course something to provide a proper oil flow needs to be created too if the drive shaft is replaced.With some basic enineering this might be possible, same for the motor mount and wiring to the outside.But what to do about the full load starting conditions that can happen?Even with no load from the cooling system the motor needs massive torque to get the piston moving.A bypass valve that closes once the motor is at proper speeds might work but hard to implement in a tight space.Any ideas?Did you ever try something that stupid?Could you make it work?What about a rotary compressor with external drive?We use ice blenders that have a magnetic base and the actual connection is made through the magnetic forces alone.A scroll compressor has lots of space without the original motor inside.Plus, a round pipe is easier to work with when it comes to adding or removing things.Small scroll compressors from an airconditioner or small industrial freezer wouldn't have to do much work in a small setup.Best thing is that with a variable speed the cooling power can be adjusted.How feasable would it be to use some polycarbonate end plate and a magnetically coupled drive ?Modern BLDC motors offer great performance and suitable gear systems are readily available.N52 neodymium magnets of the block type provide several kg of force if close enough to each other - should be enough to make a compressor spin...In return it could mean to have a nice freezer or even airconditioner that runs directly on solar power.No massive losses from inverters, no need for huge battery banks either.As long as the sun is out you have free power, once down you can still switch to a power supply for the motor or use battery power.Just imagine you come home after long day of work and the house is already cool.And you did not have to pay a cent to get it cool or wait for hours for it to reach this temperature!We love to add solar panels to our houses in the hope to get a few cents back from our energy providers.The sad reality often is that you might be able to power all your needs during the day but the excess that goes back to the grid often pays next to nothing.But if you could power a lot more things like a compressor directly with the electricity from your panels....Then these kWh would not appear on your usage bill either.Means you neither use what the power provider compensates you for nor is it "wasted" thorugh this bogus compensation.The normal solar setup can then provide you with this little extra money while an additional set powers the motors for your big freezer or little airconditioner - little being relative to what you make of the idea ;)If you really dare than you could even use your bike and legs to power your fridge directly ;)Use your imagination :)

Topic by Downunder35m   |  last reply



Propane in air compressor hose

Does anyone know how a regular (150psi rated) air hose will stand up to propane? I'm curious as to whether it would dissolve it.

Topic by Hegemone   |  last reply


Air Compressor/Vacuum Pump

I have a theory: You have your supply of compressed air. You connect that by hose to one branch of a y-connector. The other branch is connected to a hose that goes into some sort of fluid that you want to move from one vessel to another. The trunk of the y is your exhaust (in theory). So now I give, say, 15 psi out of my air supply and that shoud drag my fluid out of its vessel through the y connector to the destination of my choosing. Would that work?

Topic by flagrantfouler   |  last reply


how can i make step by step, a homemade air compressor?

I would like steb by step informations because i haven t done it again and i am not a pro

Question by panther54321   |  last reply


Building a Jet Pack or rocket belt for one man VTOF using compressors and blow guns?

I would like to build a Jet Pack to lift a man off the ground to fly . I will be using blow guns with an inlet pressure of 1800 PSI and a Flow SCFM 3624 . This should give a thrust upto about 288 Lbs for lift off .what lightweight cold Air compressor could I use / Air boosters or Air Amplifiers etc ? .Being connected to a very heavy Industrial compressor also considered , because I could still achieve take off, but is 3rd best answer .website video : http://www.ohgizmo.com/ http://www.jetpackinternational.com/

Question by Nicepolicy16   |  last reply


What's the best way to create wind/air?

I'm looking for a controllable source of air/wind that is very responsive for an art project. I could take the air compressor route, but is too expensive and loud for my needs and fans aren't responsive enough and air pumps for fish tanks don't have enough power. Any thoughts?

Question by randyng   |  last reply


has anyone experimented with a homemade gunnite (concrete applied with air pressure) machine?

It cant be too different from drywall texture spray rigs.

Question by firehazrd   |  last reply


PSU shorting out when trying to power stuff?

I'm trying to build a bench top psu from a computer psu and so far its going good, except for one thing. I recently scrounged a 12v air compressor from a buggered car battery jump starter, and it runs fine, but whenever i connect it to the 12v and ground cables on the psu the psu just shuts itself off, does anyone know why? or what i can do to stop it from doing it?

Question by jockkitto16   |  last reply




Air tank testing

I have recently acquired a 25 litre compressor on which the motor was seized so my plan is to replace the motor and pump with a couple of fridge compressors however the tank is more than 10 years old and although I cannot see any damage is their anyway to check it is safe to pressurize to 8 bar? it has 175PSI stamped on it so I assume its designed with that as the maximum working pressure but I want to know if I can get it checked as I don't want to blow myself and my garage apart if it bursts I'm in the UK

Topic by patrickshadow   |  last reply


Net Gun

Hey instructables, I haven't been on in a while but I am back and looking for someone to give me some advice. In my class, we are playing a castle crashers type game where we have to design a device that will remove all of the foam blocks from the area provided. I came up with an idea that utilizes air pressure to propel the net forward with a decent amount of force. However, I am running into an issue in finding a feasible way to store the pressure provided from me pumping a bike pump, and releasing it to propel the net. I was interested in using a rubber bladder to contain the air pumped into it, and releasing the air on command (start button). I can't use an actual compressor unit as it must be human or battery powered, and it must fit in a 2'x2' space and can't reach more than 5' tall. Any ideas as to where or how I might create a bladder would be greatly appreciated!

Topic by piddle01   |  last reply


Useful parts in mini fridge?

Hi folks, ive got a small, fully functional mini fridge that I have no direct use for. I am either going to donate the thing via Craigslist or free cycle, but was wondering what parts and things might be salvaged out of the thing and re-applied towards other projects? What has been your experience with things like this?

Topic by WayneEarl   |  last reply


What lubricant to refill a fridge compressor with?

Hey all, I just grabbed a compressor from a fridge that had been badly mangled by a bulldozer at a demolition site, planning to make a vacuum pump or airbrush compressor (or both!) Trouble is, I thought the liquid it contained was leftover refrigerant, and drained it all out. I didn't really have a choice, as leftover freon was gassing out of the compressor (thought it had lost pressure, but there was still a little in the compressor) and it was sputtering the oil everywhere. I held it upside down while carrying it home, and when I got it here, it was apparently empty. Then I found out that what I poured out wasn't liquid freon, but actually vital oil that keeps it alive. The compressor runs fine, but I only tried it for a few seconds for fear of destruction. I have many lubricants here, motor oil, 2-stroke oil, bike chain oil, etc. If I'm to dump an oil into my compressor, any ideas on which is the best call, and roughly how much should it take?

Topic by Rectifier   |  last reply


Can an engine be a High Pressure Compressor? Answered

I have tried this question before but, people pay little attention it seems like.  I know you can modify engines and all that stuff so that they will compress air and all that good stuff, but CAN THEY HANDLE 4500 psi type pressures.  The heads of 4500 psi compressors don't look like the cylinders are much bigger than those on a lawnmower.

Question by jj.inc   |  last reply


Spring powered internal air compressor

Hello everyone, I've come here for some help on designing a PVC-based air tank. I'm planning on building a pneumatic cannon that I can charge once and use to fire multiple short bursts of air. To do I decided to have two tanks -one large tank acting as the main tank and a local tank with a much smaller volume fed by the main. My problem is that I want to squeeze out all the air I can from the main tank, and I'm not entirely sure what the best way to do that would be. My current design uses a spring behind a wooden plunger so that as the volume of compressed air drops, the spring can extend and restore the pressure. (Image attached for clarity) Can anyone spot potential problem areas or places that could be improved?

Topic by Ninja Togo   |  last reply



what drives the compressor in a jet engine? Answered

Does a motor or something drive the compressor in a jet engine.

Question by Tawhid K   |  last reply



Would an 12V air compressor be enough to power a pneumatic rifle?

Although I have a larger air compressor available I was wondering if a more portable 12V would be sufficient

Question by    |  last reply


Is there a way to make an air compressor that plugs into the wall run off of alkaline batteries? Answered

Is there a way to make an air compressor that plugs into the wall run off of alkaline batteries?

Question by CapnTac   |  last reply


Could i convert an air compressor into a Diesel Engine ??

I've heard its possible to convert a small compressor into a diesel engine ?? could someone post some info on how to do this or point me in any direction ??

Question by stephenniall   |  last reply


What should I need to know before I buy an air compressor? Answered

I understand that one advantage of air compressors is the number of tools that you can adapt to them. I would like to know the difference between an oil free air compressor and another. What size air compressor is perfect for home shop use? Thank you in advance for all your help.

Question by blkhawk   |  last reply


Can You make High Pressure Water Washer with an Air Compressor?

Hey Guys, Any one have experience with fluids? Is it possible to build a device that would take high pressure air from an air compressor and from that make at least a mediocre respectablely powered washer? I'm thinking about buying a small air compressor and and looking to see if i can use it for other things as well. Thanks! JP

Topic by jpl500   |  last reply


High Pressure Shutoff? Answered

How do you make a high pressure compressor stop at 4500 psi without spending tons of money? Hopefully adjustable between 3000 and 4500 psi.

Question by jj.inc   |  last reply


How can I set up a dental tool as a high speed hobby engraver? Answered

I have this:  http://www.dickblick.com/products/iwata-sprint-jet-studio-compressor/#itemspecs  Compressor and I know it can't run it with something like this:  http://www.treelineusa.com/power-carving/pneumatic-tools/nks-presto-handpiece.html or can I? What I don't know is can it run a dental tool. Something like this:  http://www.ebay.com/itm/Portable-Dental-Air-Turbine-Unit-4-Holes-2-High-Speed-Push-Button-Handpiece-/251980511734?pt=LH_DefaultDomain_0&hash;=item3aab3579f6 Though that thing says / w compressor... I don't think that thing is a compressor.  Can anyone shed some light on this for me? I would love to be able to carve into wood or eggs or do calligraphy with one of these tools

Question by drapeta   |  last reply


What exactly does the attack knob on an MXR Super Comp do? Answered

 What exactly does the attack knob on an MXR Super Comp do? I checked on Jim Dunlop's website and it said something about preserving volume blah blah blah... I want to know what it's doing as you turn it up.

Question by adamgillies   |  last reply



Jet engine parts

Hi Guys Can anyone please help me. I have recently purchased a few parts for a jet engine off ebay as a possible project but can't find what engine they may have came off.  The combustion chamber is different to what you see in smaller rc jet engine. The turbine wheel blades are dove tailed like on bigger jets and the compressor wheel has an inducer of around 95mm. I would imagine if this could ever run again it would produce a serious amount of thrust. I have uploaded some photos and would be grateful of any help.  

Topic by hughes674 


Can I use empty gas cylinder to collect air supply for flat tyre at some remote place

I have a car with flat tyres in a remote place. There is not vulcaniser nearby. Can I improvise an empty gas cylinder to collect air supply for flat tyre at some remote place

Question by sykephil   |  last reply