[quote:0fd8912cfa="air.guerner at orange.fr"]
The higher the fuel flow, the higher the pressure loss across the filter. On the
914, when the engine is not running, there is of course no boost pressure and
therefore the fully open fuel pressure regulator is sending all the fuel back
to the tank. This is when the fuel flow across the filters is maximum. However,
when the engine is running at max boost, more fuel pressure is required and
the regulator sends a lot less fuel back to the tank. Therefore, at high power,
the flow through the filters is greatly reduced and bubbles in the filters
is less likely and possibly totally eliminated.
-----[/quote:0fd8912cfa]
Sorry, I don't get it. As far as I understand the fuel pump delivers a constant
rate to the engine, and all the fuel not used by the engine is going back to
the tank. At high power, still the same is being pumped to the engine, but as
the engine is consuming more, less is being sent back to the tank. The fuel
filters
are however not in the return line, but in the line TO the engine, and they
see a constant flow, independant of the actual fuel consumption of the engine.
Correct me if I'm wrong.
Frans
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