How to Make A Compressed Air Engine, DESIGNING & MAKING A COMPRESSED AIR MOTOR! JOIN US FOR: Discussions, Designs, and Problems related to Compressed Air Motors or Engines.
Thanks for checking in, I am attempting to go with a five cylinder and it is going in a stick shift, but there won’t be a clutch. It will be direct drive.
A fascinating design, but sadly I predict that you will be bitterly disappointed by its power output and/or its phenomenal air consumption. What reservoirs will you be using in the vehicle?
Thanks for checking on my progress, and commenting. I do not have any Carbon Fiber Tank or Tanks yet, so that will have to be worked out later. To start with I'm using a Scuba tank at 6000 psi and 150 - 200 psi running pressure . I am starting with 3/4" Square Cylinders that can be easily changed to larger for more power at the expense of using more air. Each Cyl uses .60 Cu Inches. Keep following along, and hopefully not too far down the road, we'll see if your perdition comes true.
@@AirEngineResearch I wrote a long and detailed reply including calculations then deleted it by mistake... The conclusion was that there is enough energy in a 12l tank at 400bar to propel a VW Beetle (I assume) at 50mph for less than one minute (disregarding the energy required to get it up to speed). Does this roughly tally with your calculations?
For right now I’m working in the shop, and I’ll have to go back and look at my spreadsheet information in order to give you some kind of a reasonable answer. I’m pretty sure my calculations are greater than one minute but I can never say I didn’t make a mistake? Check back later
@@AirEngineResearch I will. I used to work for Atlas Copco, but more on tech support than design, so I will recheck my own calcs! One thing I know for sure is that compressed air has dreadfully low energy density and that air motors are extremely inefficient. Not a good combination. Our GTG40 turbine grinder had a 4.5kW output but required a minimum 25kW compressor to run it! Good luck - I love your lateral thinking.
Using 5 3/4" Cylinders with .8" Stroke, will use 3.0 cu of Air per Engine Revolution. Engine turns 1.8 revolution to 1 Tire Rotation. A 2.17 Ft Tire will turn 776 times/mile so Engine turns 1,397 Revs/mile so the engine will use 4,191 cu in of Air per mile. Using a 55 L Tank = 14.53 Gal at 231 cu in /gal times 5800 = 19,467,294 cu in. Using 19,467,294/150 psi running pressure gives me 129,782 cu in / 4,191 cu in per mile = 31 mile until tank pressure drops to 150. The above is what I'm banking on, but I always have a feeling there just might be something I'm calculating wrong? hope not, but if you find something I'm open for correction.
