초록

To accommodate fuel having higher freezing points the continuous bypass flow of fuel from the fuel control is selectively diverted to pick up the rejected heat from the engine\s lubrication system to heat the fuel in the aircraft fuel tank.

대표청구항 ▼

A system for heating the fuel in a fuel tank for aircraft which system includes a lubrication system for a jet engine, a fuel control that meters fuel to said engine and a heat exchanger that places the fuel and lubricant of said lubrication systems in indirect heat exchange relation, a pump for pre

A system for heating the fuel in a fuel tank for aircraft which system includes a lubrication system for a jet engine, a fuel control that meters fuel to said engine and a heat exchanger that places the fuel and lubricant of said lubrication systems in indirect heat exchange relation, a pump for pressurizing the fuel prior to being admitted to the fuel control which receives an excess of fuel over that being metered to the engine, and a bypass diverting fuel from said engine continuously flowing said excess fuel, said fuel heating system including another heat exchanger having the lubricant connected in series with said heat exchanger, means for interconnecting said excess fuel to said other heat exchanger so as to place said fuel in indirect heat exchange relation with said lubricant, conduit means leading said heated fuel from said other heat exchanger into said fuel tank, means for selectively turning on and off the flow of bypass fuel to said other heat exchanger and said bypass continuously communicating with the inlet of said pump independently of said selective means.