Atkinson 4 cycle
The Atkinson 4 cycle is a design whereby all four strokes, intake, compression, power and exhaust, are completed in just one revolution of the crankshaft.
To see an animation of this design, as well as many other mechanical movements such as the Ross Yoke and the Wankel, visit the web site of Matt Keveney. http://www.keveney.com/Engines.html
We're building an Atkinson engine and we are going to share with the readers all of the steps involved in designing and building an engine from scratch.
(The image above is one of Matt's. Thanks Matt!)