Does anyone know what a desmodromic valve drive is, as fitted to the 1954-55 Mercedes W196.
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JimE
Question
Started by
JimE
, Oct 12 1999 05:53
2 replies to this topic
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#2
DangerMouse
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Posted 12 October 1999 - 07:29
It's a valve system that opens and closes the valve directly (rather than simply opening the valve and then relying on the valve spring to force the valve shut by pushing it against the cam lobe)
Desmodromic valve systems only require a very weak valve sping (to take up final clearance), but have higher reciprocating mass (often two rocker arms per valve.)
The system is still in use today in all Ducati motorcycles.
Desmodromic valve systems only require a very weak valve sping (to take up final clearance), but have higher reciprocating mass (often two rocker arms per valve.)
The system is still in use today in all Ducati motorcycles.
#3
JimE
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- 45 posts
- Joined: September 99
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Posted 13 October 1999 - 04:15
DangerMouse
Thanks for the reply, I have seen the system before but did not recognise the name.
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JimE
Thanks for the reply, I have seen the system before but did not recognise the name.
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JimE
