Electronic valve control

[Clare Snyder]

dzorde wrote:
> 
> I think you would eventually break the valve from the stem due to the sheer
> hammering of the valve against the seat.
> 
> Dan     dzorde at geocities.com
> 
> >Actually there have been a few engines built and run with solenoid controlled
> >valves........however they are VERY noisy, this is because as the solenoid
> >begins to close the valve it accelerates considerably resulting in slamming
> >the valve in its' seat whereas a cam actutated valve will be placed on its'
> >seat with zero velocity. I have heard that the solenoid engines sound alot
> >like diesels....
> >
> >Scott Shotton wrote:
> >
> >> delsol wrote:
> >> >
> >> > Has anyone had any experience with electronic control of  engine valves?
> >> >
> >> > Ideally no cam would be involved. Any ideas or info, anyone?
> >> >
> >> > Daniel
> >>
> >> This idea has crossed my mind before.  Computer controled valves would
> >> be an invaluable tool.  Infinate duration and timing posibilities.
> >> However, as far as I know, solenoid technology is not good enough for
> >> that particular application.  I wish it were!
> >>
> >> Scott
> >
> >
> >
> >
What about hydraulic or pneumatic control, with computer controlled
solenoid control of the fluid system?
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