[dcb]

Obviously I am not in a position to validate any of this, but I do have a question or two I would like to ask:

The center bearing block, where the cylinders meet, when the cylinder is expanding it will want to rotate the bearing block itself I think. And all the cylinders need some articulation at that point since they are not always meeting at right angles.

So how do the cylinders articulate and pass gasses back and forth?

And how does the assembly resist the torque of the power stroke?

Also it is worth noting that this valving needs to handle peak combustion pressures.