Robin
I was surprised to see that the central shaft in the animation doesn't rotate. Does this mean the engine produces no output power? :>
In the Wankel there is a fixed gear (shown) which does not rotate and also a crankshaft (not shown). Since they occupy space on either side of the rotor, it is difficult if not impossible to show both in an animation. Often, only the crankshaft (eccentric) is shown, and then that is misleading also - as those who do not understand the mechanics cannot figure out now the rotor should stay sealed against the circumference following the ignition with only the eccentric.
Of course the problem is that you need both, and only one can be shown at a time from that viewpoint.
