Max Machinery 370 Series Level Controllers - Manual (Page 4)

( 4 ) 370-000-350 © 2002 Max Machinery, Inc.
General Description & Application
Basic Application Description
The Max Level Controlled recirculation tank performs two basic functions: The recirculation tank function provides the
engine with a source of fuel and allows unburned return fuel to flow back to a tank which is at atmospheric pressure. The
tank is open to the atmosphere to eliminate back pressure on the engine’s fuel system as well as to vent bubbles removed
from the fuel. The tank is outfitted with a series of screens to collect the entrained vapor that often results from the mechani-
cal action of the injector and/or heating of the fuel. These bubbles rise to the surface, while the engine is supplied with bub-
ble-free fuel from the lowest port.
The level control function automatically feeds measured make-up fuel into the recirculation tank to replenish the fuel con-
sumed by the engine. A float activated valve is used to maintain a consistent tank level. The valve opening is varied to regu-
late the flow of pressurized fuel into the tank typically through a flow meter (see below).