Ducati have just announced they will unveil "DVT"
on October 15th. DVT? Well, I guess it could be that the footpegs are so high
on my 916 that they're warning of deep vein thrombosis. But then again the
Italian blogs are guessing at Ducati variable (cam) timing. This would be the
first real technology transfer from Audi and Ducati, because Audi already have
such a system, having learnt from Honda’s VVT (variable valve timing).
Audi's Valvelift
system made its debut in the 2.8-litre direct injection V6 and is expected to
be expanded for use in many other members of the 90-degree V6 / V8 family. The
Valvelift system itself is a cam-changing type VVT as in the picture above. Compared
with Honda's (or Toyota's) system, Audi's looks simpler and so more efficient
and easier to squeeze into a motorcycle head. It does the variable lift without
using complex intermediate parts such as hydraulic-operated lockable rocker
arms, saving space and weight. And presumably makes a desmodromic version
possible – because who’d expect Ducati abandon desmodromics?
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