Engine lubricating oil cooling systems for turbojets or the like

Claim 1

A COMBINED SYSTEM FOR ENGINE FUEL FEED AND FOR THE COOLING OF ANOTHER FLUID COMPRISING FIRST MEANS TO SUPPLY AND METER SUBSTANTIALLY LIQUID AND HEATED VOLATILE FUEL TO AN ENGINE AND TO COOL SID FLUID BY SENSIBLE HEATING OF SAID FUEL INCLUDING A FUEL TANK, A FUEL PUMP, ENGINE FUEL SUPPLY CONTROL MEANS, HEAT EXCHANGER MEANS AND INTERCONNECTING PASSAGES WITH AN OUTLET TO SUPLY SUBSTANTIALLY LIQUID AND SENSIBLY HEATED FUEL TO SUCH AN ENGINE AND SECOND MEANS TO HELP TO SUPPLY FUEL AND TO CAUSE THE VAPORIZATION OF AT LEAST PART OF THE FUEL FROM SAID FIRST MEANS TO COOL SAID FLUID, AT LEAST PART OF SAID HEAT EXCHANGER MEANS BEING CONNECTED TO SUPPLY THE LATENT HEAT OF VAPORIZATION FOR SAID VAPORIZATION OF SAID SECOND MEANS, SAID SECOND MEANS INCLUDING FUEL TEMPERATURE RESPONSIVE MEANS IN SAID FIRST MEANS DOWNSTREAM FROM SAID HEAT EXCHANGER MEANS, A VAPORIZATION AIDING AND FUEL PRESSURE REDUCING VALVE CONTROLLED BY SAID FUEL TEMPERATURE RESPONSIVE MEANS CONNECTED TO REDUCE THE PRESSURE OF, AND HELP VAPORIZE, AT LEAST PART OF THE FUEL FROM A POINT IN SAID FIRST MEANS AND A SECOND PASSAGE MEANS CONNECTED IN PARALLEL TO SAID FIRST MEANS AND HAVING A VAPOR REMOVAL PUMP THEREIN AND AN OUTLET PORTION TO BE CONNECTED TO SUPPLY PREVIOUSLY VAPORIZED FUEL TO SUCH ENGINE.