Purging gas generator

Claim 1

AN AIRCRAFT PURGE GAS GENERATOR FOR SUPPLYING SUBSTANTIALLY INERT GASES TO A PURGE GAS DUCT COMPRISING MEANS FORMING A COMBUSTION CHAMER FOR THE COMBUSTION OF A LIQUID FUEL AND AIR MIXTURE, HEAT EXCHANGER MEANS CONNECTED TO RECEIVE THE PRODUCTS OF COMBUSTION FROM SAID COMBUSTION CHAMBER, DUCT MEANS FOR PASSING A COOLING AIR STREAM THROUGH SAID HEAT EXCHANGER IN HEAT EXCHANGE RELATION TO SAID PRODUCTS OF COMBUSTION TO COOL SAID PRODUCTS OF COMBUSTION, BYPASS MEANS CONNECTED FOR SHORT-CIRCUITING A PORTION OF SAID HEAT EXCHANGER, VALVE MEANS FOR OPENING AND CLOSING SAID BYPASS MEANS, MEANS SENSITIVE TO THE TEMPERATURE OF THE PRODUCTS OF COMBUSTION DOWNSTREAM OF SAID BYPASS MEANS FOR OPENING AND CLOSING SAID VALVE AS THE TEMPERATURE OF THE PRODUCTS OF COMBUSTION MEANS RESPECTIVELY FALLS BELOW OR RISES ABOVE A PREDETERMINED LEVEL, VALVE MEANS HAVING AN INLET CONNECTED TO RECEIVE PRODUCTS OF COMBUSTION FROM SAID HEAT EXCHANGER MEANS, THE LAST SAID VALVE MEANS HAVING A FIRST OUTLET ADAPTED FOR CONNECTION TO SAID PURGE GAS DUCT AND A SECOND OUTLET CONNECTED TO SAID COOLING AIR STREAM DUCT, VALVE OPERATING MEANS RESPONSIVE TO THE TEMPERATURE OF SAID PRODUCTS OF COMBUSTION CONNECTED FOR OPERATING THE LAST SAID VALVE MEANS TO SHIFT THE LAST SAID VALVE MEANS TO TO CONNECT ITS INLET TO THE SECOND SAID OUTLET, DEPENDING UPON WHETHER OR NOT THE TEMPERATURE OF SAID PRODUCTS OF COMBUSTION AT THE LAST SAID VALVE OPERATING MEANS IS ABOVE OR BELOW A CERTAIN TEMPERATURE INDICATIVE OF SATISFACTORY AND STABLE OPERATION OF SAID COMBUSTION CHAMBER, SAID MEANS FOR SUPPLYING FUEL AND AIR TO SAID COMBUSTION CHAMBER.