I had no idea this type of valve was a thing. Interesting to learn a little about. Maybe something like this would make electrically controlled variable timing more viable and thus improve the efficiency of ICEs?
I had no idea this type of valve was a thing. Interesting to learn a little about. Maybe something like this would make electrically controlled variable timing more viable and thus improve the efficiency of ICEs?
I had the same thought, these seals aren’t containing oil like a camshaft seal, they’re actually dealing with compression forces. Maybe not directly, but still there’s a pressure differential.
I didn’t think of airflow dynamics, but yeah this thing is basically the lever valve thing in your garden hose adapter spinning at a few thousand rpm regulating combustion gasses. I could see it doing weird stuff when the valve is only partially open, especially when it starts to close.
Exactly.
I hadn’t really visualized it at speed either - I can only imagine the turbulence then.