Patent ID: 8695410

Claim:
A fuel flow measuring apparatus for an internal combustion engine comprising: a fuel conditioning cabinet; a fuel supply configured to deliver fuel to the fuel conditioning cabinet through a fuel supply line; a fuel measurement cabinet (or subsystem); a fuel transfer line configured to transfer fuel from the fuel conditioning cabinet to the fuel measurement cabinet (or subsystem); a fuel delivery line extending between the fuel measurement cabinet (or subsystem) and the internal combustion engine and configured to deliver fuel thereto; a first fuel return loop extending from the fuel delivery line to the fuel measurement cabinet (or subsystem); a second fuel return loop extending between the fuel measurement cabinet (or subsystem) and the fuel conditioning cabinet; and an intermediate cooling system comprising: an intermediate cooling tank containing an intermediate coolant therein; an intermediate coolant line in serial thermodynamic communication with the first fuel return loop and the second fuel return loop to thereby thermally connect the fuel flowing through both of the fuel conditioning cabinet and the fuel measurement cabinet (or subsystem) to define an isothermic fuel stability therebetween.