Does anyone have an idea on how to use this technology for our purpose?  It
seems that they measure MAP and regulate fuel pump volume electronically ie
PWM.

Joe Berki
Limo EZ

I believe it is essentially the exact same technology as the return system.

Imagine a standard return fuel system.  Now leave the pressure sensor
and move the regulator valve to the pump outlet.

The key is to measure the pressure at the dead end of the tube, but put
the overflow at the begining of it.

Now you have a return less system.

Of course you can do PWM but why?

Eric Ruttan