The unconventional engines thread

The Beck 1909 engine

Beck sounds a rather German name, but in fact Frederic Beck lived in Neuilly-sur-Seine in France. By 1910 he seems to have rethought his engine, and obtained US patent 977,260 for a "rotary explosion motor" using bell cranks and a face cam to drive the pistons.

And it powered this

^ paul99 beat me to it, the Deltic was the first thing that I thought of 

Next up would be the Arial Square4 bike engine. 4 cylinders, 2 crankshafts, a clever design by Edward Turner who went on to do work for Triumph and others ! 

Some amazing sounding units here. The Commer Knocker is certainly unique in it’s sound. Pokey too, 2 strokes always make more power and torque than their four stroke equivalent.

Deltic is one of my all time favourite engines. Start it in reverse...

Chrysler Gas Turbine

The K60 looks really similar to the Commer Knocker. Like it.

I used to work in Oil and gas and I've seen some really weird stuff that I can't find on Google - once I saw a diesel engine where the end cylinder was an air compressor...

Radial engines are fairly conventional, unless they're in a car. When you turn them on their side they become even more unconventional.



This is the only video I can find of it running.



The only other info I can find on it is from here: blog.axisofoversteer.com/2014/03/mysterious-radial-engined-race-car.html

"This revolutionary prototype was created in 1936 by an engineer from Antibes (France).
Mister Guidobaldi had invented a shock system to lean the car in corners to give more speed, like a motor bike.
This car uses a 8-cylinder two-cycle "radial" engine with a compressor and desmodromic valve. This car was never raced in a Grand-Prix as it was intended too.
It was displayed at the museum of automotive at Mougins (06) before being sold in 2008"

Or how about Lancia's Triflux engine.




There is an excellent feature about it on Speedhunters.

www.speedhunters.com/2013/02/the-triflux/