Many of you have seen the process of making this rotary valve engine with different intake and exhaust system and how I tried to start it. If not, then let's watch the previous video first: <a href=" ...

This means it is a reciprocating rotary engine. Yeah, weird stuff. The camshaft is also centrally located in the crankcase and still runs at 50-percent crankshaft speed but only actuates one valve ...

As interesting as this concept is, it still has a long way to go before reaching production lines, not to mention its applications may be limited ...

In case this is a rotary valve, add 3 dB to the total. If your FL factor is different from 0.7, then add the following ∆FL numbers: In cases where your fluid is something other than water, add the ...