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Lightweight diesel

One of my technicians races those 1/8 scale cars with a tiny engine. He also custom makes the components with the CNC mill in our shop. I was looking at one of the engines on his bench and noticed there is no spark plug and realized it worked like a diesel. He tells me it burns a combination of Castor oil, kerosene and nitromethane. It does have a carburator. It is air cooled and puts out 3 hp and fits in the palm of my hand. Could the same technology be used to make ultra-lightweight diesels for outboards? Of course you'd want real fuel injection so you didnt have to use the nitromethane (fuel atomization I assume). The cylinder would have a high strength sleeve insert that could be easily replaced but the rest would be made of Aluminum.		 dbohara
Feb 3
2006
I have a small diesel airplane engine. No glow plug 2 stroke. You adjust the compression with a thumbscrew on the top of the head. About 0.49 cc. Calif
Feb 5
I suspect that mini engine has a glow plug that ignites the fuel. I don't beleave I've ever heard of diesel operation without fuel injection, you just couldn't control the point at which the fuel begins to burn during the compression stroke. Be leary of light weight diesels, the internal pressures that a diesel has to deal with are much higher than that of gas engines. That's why industrial diesel engines, like generators on boats, tend to last so long. Capt
Feb 3
   
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