Well, the golf cart is done, the grass is mowed and fertilized, the house is washed and the shop is mostly straight, sort of, if you don't count the bench covered with junk. At any rate, it's time for another project. Not too big or expensive though. I'm lazy and cheap.
Y'all have probably seen the gas turbines made using a turbocharger. Well, I'm going to build one like this.
It's actually a turbo shaft engine that's going to end up on a pit cart. Smaller than a golf cart and bigger than a bar stool racer. It will be loud, obnoxious and dangerous. Should fit in at Lemons quite nicely.
Most of my inspiration and the place I steal ideas comes from this guy. He has a well documented build that I'm copying. http://www.rcdon.com/html/experimental_projects.html If you get the urge to waste countless hours, click the link.
Starting with the combustor chamber. It's made out of a piece of scrap exhaust pipe 3 1/2" necked down to 1 7/8" and welded to a plate.
Moving on to the combustor liner. Also made out of exhaust pipe. This time 2 1/2 inch.
There are 52 holes drilled in it to allow air into the burn chamber. It's welded to a disk of plate that will hold the spark plug and the fuel orifice. This will be bolted in the combustor chamber. Next to it you can see the flange ring that will be welded to the combustor chamber. Lathes are wonderful things.
Bolted up:
You can also see the air inlet tube. It's made out of a scrap piece of roll bar tubing.
Spark plug and fuel orifice installed. For testing purposes the plug is being fired using a neon power supply.
This is the combustor mostly finished other than cleaning it up and making it pretty. It's clamped to an engine stand for testing. I used my leaf blower for air. It seems to work properly. We'll see when I get the rest of the thing built.
I also completed a frame to mount it to for testing.
And this is the beast mostly complete as far as the mechanics go.
I still have to design and build an oil pump system capable of keeping it lubed and cooled as well as build the shaft turbine.
Updates as they happen.