Here is one with a company behind it http://www.liquidpiston.com/default.html http://www.liquidpiston.com/default.html But they don't have an animation http:/

Here is one with a company behind it http://www.liquidpiston.com/default.html http://www.liquidpiston.com/default.html But they don't have an animation http://www.popularmechanics.com/cars/news/auto-blog/liquidpistons-hyper-efficient-engine-turning-the-rotary-inside-out-13817971 http://www.popularmechanics.com/cars/news/auto-blog/liquidpi... This is a picture of all the steps: http://www.gizmag.com/liquidpistol-rotary/24623/pictures#7 http://www.gizmag.com/liquidpistol-rotary/24623/pictures#7 But I cannot understand from that.