FE Power Forums
FE Power Forums => Non-FE Discussion Forum => Topic started by: chris401 on November 05, 2017, 10:36:15 AM
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I spoke with this man several years ago. The plan was to send him a running MEL to build the camless valvetrain for. My projects fell dead shortly after but he is still building.
https://youtu.be/GXIdOTkJhEY
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I'm intrigued, but I don't understand what drives the rockers. As the comments say, the Italians (Ducati) have been using push-rod-less motors for a while.
Here's what I found on the Ducati system, but Decuir seems different?
http://www.formula1-dictionary.net/desmodromic.html
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Everything has grooves to attach each piece together. Lifter is attached to cam, pushrod must be attached to lifter and rocker, then rocker is attached to valve. I can see no need for springs as it pulls the valve closed.
I'm curious as to how you lash it? I see the chain link portion holding the valve to the rocker tip. You can't have it totally tight as something has to give as engine expanse and contracts.
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#8 sounds a little noisy.
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I'm intrigued, but I don't understand what drives the rockers. As the comments say, the Italians (Ducati) have been using push-rod-less motors for a while.
Here's what I found on the Ducati system, but Decuir seems different?
http://www.formula1-dictionary.net/desmodromic.html
The Ducati is an overhead cam design. Seems superior to any OHC I have ever seen. I asked about the lash and valve damper but I cannot remember his response. It is probably on his website. I will take a look latter.
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http://www.italian.sakura.ne.jp/bad_toys/engine/engine05.html