by "Noddy" <me@[EMAIL PROTECTED]
>
Feb 2, 2008 at 12:55 PM
"veritas" <veritas@[EMAIL PROTECTED]
> wrote in message
news:47a3b691$0$4401$88260bb3@[EMAIL PROTECTED]
> What I would like to see is the computer/hydraulic actuated valve system
> perfected and put into production on the average car - doing away with
all
> controls except matched fuel injection. Simply controlling the valve
> timing and travel to meter air in much the same way as fuel injectors
> meter fuel, seems, to me, to be the ultimate efficiency design.
>
> I understand that the system might already be used in some large diesel
> engines.
BMW ****ed with this idea around 10 years ago for car engines, but I don't
know if they ever made it work in a production model.
The valves were all controlled by electric solenoids and the engine had no
camshaft or other valve train components other than the valves themselves
and the solenoids that actuated them. Valve timing was thus infinitely
variable via the ecu.
--
Regards,
Noddy.
