"Rosine, Steve" wrote:

THe primary reason for not returning the fuel to the fuel pump inlet side

is

to prevent heating of the fuel, right?  If the returned fuel were cooled

to

ambient, then it could be teed into the fuel supply.

That's exactly what Jan Eggenfellner does with his Subaru package, here's a
clip from one of his emails to the Glastar list:  "Return fuel from the fuel
injector rail is cooled through an air to fuel cooler mounted in the front
of the engine and then simply routed back to the inlet side of the dual fuel
pumps also in the engine compartment.
This system greatly simplifies the fuel system, allows the installation of a
fuel totalizer, is safer and works great."

Perry Casson

The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org