Pressure controllers (28,30) open or close the connection of a shunt (24) to a fuel line (18) at a first pressure, and open or close the connection of a return line (22) with the fuel line at a second pressure. The pressure controller open the shunt and th...

The suction jet pump has an overflow beaker (12) under its mixing tube (8). The mixing tube, complete with the diffuser (11) on its outflow end (10), comes out into the beaker, which encloses it but is spaced out from it. It has an overflow aperture (13) w...