Actual Rotary Displacement Request

[NoDOHC]

Peter and Barry, I have too much respect for both of you to stand idly by while you dispute so vehemently.

It's Ok to disagree, but let's not turn this into an personal argument. This is a case where the only important factor is that we understand how the engine works. It is accurate to say that a rotary engine completes an intake, compression, power and exhaust stroke on each rotor during a single rotation of the engine. However it requires 3 revolutions of the engine for all faces of each rotor to see all four strokes.

The difference between you is that Barry is looking at a single rotor housing as the displacement-providing chamber, while Peter is looking at the rotor as the displacement-providing chamber. Neither of you is right or wrong, it is a difference of perception.

How each of us slices this up depends on personal preference and nothing more. There is no right answer here.

I appreciate the information and clarification provided in this thread, but I don't want two knowledgeable and intelligent members of this community bogged down in this senseless argument.

Let's leave it with the cycle explanation and keep this thread informative.