Designer Gennady Korenevsky from Rostov-on-Don has developed an unusual two-stroke internal combustion engine that runs on liquid ammonia instead of gasoline. The power unit combines a corona discharge for igniting the mixture, opposed-piston movement, and pre-chamber ignition.
The engineer placed a toroidal pre-chamber in the cylinder, where a portion of ammonia is supplied. There, the fuel partially decomposes into hydrogen and nitrogen, after which the mixture is further ionized by a corona discharge from the spark plug.
Due to the opposed movement of the pistons, the combustion process approaches an isochoric mode, which increases efficiency. In the calculated example, the author indicated the possibility of boosting the engine to a specific power of more than 120 kW per liter.
It should be noted that the idea of ammonia engines is not new, but it has not yet become widespread due to concerns about safety, toxicity, and engine life.
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