[Diy_efi] Fuel delivery guidance

[Tomas J. Sokorai Sch.]

On Friday 10 September 2004 01:07, Don Sauman wrote:
> Thomas,
>
> It was my understanding that the purpose of the accumulator, as it was
> directly above the HP fuel pump, was to keep a head of fuel available.
> Sort of like a primative surge tank. Have I got it wrong?

Nope, it was for keeping the pressure in the system after the pump was shut=
=20
off, to keep the gas from vaporizing in the system when hot, and to dampen=
=20
the pump "noise".

In short: pretty nice addon for a homebrew EFI system :)

=46rom the KE-Jetronic Bosch manual in German:

Der Kraftstoffspeicher h=C3=A4lt nach dem Abstellen des Motors f=C3=BCr ein=
e gewisse=20
Zeit den Druck im Kraftstoffversorgungssystem, um das erneute Starten,=20
besonders des heissen Motors, zu erleichtern. Die besondere Bauweise (Bild =
5)=20
des Speichergeh=C3=A4uses wirkt d=C3=A4mpfend auf das Kraftstoffpumpenger=
=C3=A4usch.

>
> Don
>
> Tomas J. Sokorai Sch. wrote:
> >On Thursday 09 September 2004 02:12, Don Sauman wrote:
> >> same as the fuel accumulator used on late 70s/early 80s 200
> >>series Volvos?
> >
> >Yes, that's it!... and "fuel accumulator" was the precise term for the
> >"damper" I was referring to.
> >
> >Volvos, Audis, VWs, BMWs, Porsches, MBs, even Peugeots used on the early
> > 80s the k-jetronic mechanical injection system on some of their model
> > lines.

=2D-=20
Tomas J. Sokorai Sch.
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