Direct Injection

[Seth Allen]

On Fri, 23 May 1997, Loic Trocme wrote:

> Date: Fri, 23 May 1997 13:23:31 +0200
> From: Loic Trocme <Loic.Trocme at nanterre.marelli.fr>
> To: DIY_EFI at coulomb.eng.ohio-state.edu
> Subject: Direct Injection
> 
> Hi everybody!
> 
> I'm new here and very interested in your discussions.
> I'm French, but I hope everybody will understan me.
> 
> Somebody know something about driver of direct injection?
> Thanks.
> 
> Loic
> 
If you are speaking of diesel direct  injection, then PACCAR in 
Washington State, USA knows a bit.  The solenoids for injection at top 
dead center on a big diesel use something like 200v.  I don't remember 
the exact figure.  I imagine they have a website, but I haven't looked.  
PACCAR is the research and development for Peterbuilt/Kenworth heavy 
trucks, as well as some Foden and DAF trucks.  Where I go to school, we 
have direct injected rotary engines with normal solenoid efi injectors, 
but the injection is not at TDC.  I think we used the 2nd spark plug hole 
for the injector.  And the injectors held against combustion pressure.  
That's what I was told, it was built before I got here.  We might be 
working on a two stage expansion and compression rotary diesel in the 
next year, but that project hasn't yet solidified.

Hope this helps a bit,

Seth