Subject: Fuel return systems
From: ACRE
Date: 8/14/2003, 9:37 PM


Shoot, I'm still lost!  : )  I guess I don't understand the "dribble"
 > part. Time to search the Internet.
 >
 > >Phil Williamson


When you see a distribution spool mounted in the center of the engine
with a
1/8" line running to each cylinder head, that is constant flow fuel
injection.
A positive displacement sliding vane pump fuel pump is gear driven from
the
accessory section so the output is a function of RPM. There is
additional
control offered by a valve controlled from the cabin (mixture) and I
believe
another controlled by a diaphragm and spring to help account for
altitude.

There are similar systems available for V8 engines, like Hilborne,
Endrell
and others.
As far as I know any Continental injected engine is this system. Look at
any
Bonanza.

Lynn E. Hanover


For a true "constant dribble" experience - some recent cars had
"throttle body injection" - pull the cleaner off one of those and watch i
at idle - 'timed port" gets my vote. direct injection has many of the
unmixed
combustion problem that you see in Diesels - Vance

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2003 All world wide rights reserved.