Rotary Valves; Bishop Rotary

[xLibelle]

An interesting read

http://home.people.net.au/~mrbdesign/PDF/AutoTechBRV.pdf

25k rpm is hard to imagine for a piston and rod!


I bet if the petrolium industry were to hold out longer, we might have seen this technology in mainstream sooner than later if it hadn't been banned from F1. Then again, futile to argue since this design has been around since the dark ages.

[kylebes1]

I want one

[ivo316]

I thougth (just thought, I'm no engeneer) of something like it in 1995, but it was a drilled shaft thar replaced the camshaft and valves, of course that was just an idea, I thought i had invented something at the time, but it was widely tried at the beginning of the century.

Cool sloution to the problem, it's great to see that the idea was feasable.

[craig4ie]

That is REALLY interesting.

I'm a 3rd year Mechanical Engineering student and I've never heard of that before. I wonder why this technology hasn't reached production yet?? And why would F1 ban the technology??

I guess you do have to keep in mind that the author of this article is involved with the developers of the technology and probably wouldn't mention the downsides in an international publication.

I'm sending this to my Thermo Prof!

Great thread, thanks

[ivo316]

From what I read at the time, it produced resonance issues intake plenum, I guess it didn't work with carburated fuel systems in the early 1900's, then they must have forgot about it and nobody tried it again, with fuel injectors it should work perfectly.

The system i saw (just after i thought of it) was designed by a french guy and it was a long solid shaft on top of the head with drillings that went through it and aligned with the intake holes in the head as it rotated.

I gues that at the time the machning was not that precise either so the sealing maybe was not enough to make it functional.

[euroshark]

F1 probably wants to keep the engines traditional. Since the sport has a long history and blah blah blah. Damn cool technology though!