Twin injector system?

[goflo at pacbell.net]

Sandy wrote:
> 
> I have though of just raising the voltage too, but would expect a couple of
> problem, meltdown and destruction of the injector as one ;-). The second,
> is that it might open faster, but not close faster, also I have now to dump
> a lot more stored energy back into the electronics so that may require some
> changes in the protection and related circutry.  I don't really know the
> insides of the injector, if the fuel pressure is used to help close the
> pintle (I think thats what its called), then a combination of increased
> fuel pressure and higher peak voltage might do the trick. An interesting
> thought, would be to take a 24 vdc powersource, and run an injector
> (saturated style) with a 2/1 peak and hold current and see what kind of
> minimum cycle time you can get, and then raise the pressure. I would expect
> that this is all a wash, as with the added pressure the pintle will just
> stick open, worth a ramble however.
> 
> Sandy
> 
> >
> >The way I see it, the poor response at short cycle times is due to the long
> >rise time of the injector current...

Stepper motor drivers use such schemes, but the dynamic situation is 
somewhat different. Suspect you can only launch the pintle so hard 
befoe bouncing it off its stops, with obvious complications. Anybody
have hard data?

Jack