"Dave Plowman (News)" wrote in message
...
In article ,
Allodoxaphobia wrote:
On Mon, 14 Jan 2008 19:59:47 +0000 (GMT), Dave Plowman (News) wrote:
In article ,
Geir Holmavatn wrote:
Have all those good ol' 2" fuel flow instruments with separate sensor
been wept off the market and replaced by cruise control computers..?

Anyone knowing where to find a fuel-flow meter with sensor for
gasoline with display in European units: milliliters per minute or
liters per hour..?

Thanks for tips and comments

They're not any use with injection as the fuel runs in a loop sending
unused back to the tank. And at high pressure. The normal way these
days is to count injection pulses and duration.

I suppose you could employ two (2) in-line sensors -- one on the supply
side, and one on the return side and subtract the return flow from the
supply flow in the u-processor. (I'm assuming the project used a
MicroChip [or similar uP) thingy.)

The site Trevor gave in a later post says it can work by either counting
injector pulses or a flow device.

**Correct. It's a bit fiddly, but more accurate actually measuring the fuel
flow. I ended using the pulse counting method myself (I didn't care much for
mucking about with fuel lines), but I did have two fuel flow meters, which
came with the computer. One was plastic, the other a substantial die-cast
affair. Accuracy was pretty impressive, according to the manufacturer's
data.

Trevor Wilson