Method and apparatus for monitoring the total combustibles and oxygen content of a gas

Abstract

Abstract THE INVENTION PERTAINS TO A TECHNIQUE FOR MONITORING BOTH THE OXYGEN AND COMBUSTIBLES CONTENT OF A GAS MIXTURE REGARDLESS OF EXCESS OXYGEN OR EXCESS FUEL CONDITIONS. THE TECHNIQUE COMPRISES THE UTILIZATION OF A CATALYTIC COMBUSTION SENSOR AND A SOLID ELECTROLYTE OXYGEN CELL ASSEMBLY. A CATALYTIC THERMOPILE SENSING ELEMENT CAUSES A REACTION TO OCCUR BETWEEN THE OXYGEN AND COMBUSTIBLE CONSTITUENTS OF THE GAS MIXTURE RESULTING IN DEPLETION OF THE CONSTITUENT OF LESSER QUANTITY AND GENERATING AN ELECTRICAL INDICATION OF THE QUANTITY OF THE MINOR CONSTITUENT. THE GASEOUS MIXTURE IS SUBSEQUENTLY MONITORED BY THE SOLID ELECTROLYTE OXYGEN CELL ASSEMBLY, WHICH GENERATES AN ELECTRICAL OUTPUT SIGNAL INDICATIVE OF THE EXCESS OXYGEN OR EXCESS COMBUSTIBLES REMAINING IN THE GAS MIXTURE AFTER THE REACTION PRODUCED BY THE CATALYTIC THERMOPILE SENSING ELEMENT. UNDER EXCESS FUEL CONDITIONS, THE SOLID ELECTROLYTE OXYGEN CELL ASSSEMBLY GENERATES A SIGNAL WHICH FUNCTIONS TO INTRODUCE OXYGEN INTO THE GAS MIXTURE IN AN AMOUNT TO INSURE COMPLETE COMBUSTION. MANIPULATION OF THE ELECTRICAL OUTPUT SIGNAL FROM THE CATALYTIC THERMOPILE SENSING ELEMENT AND THE ELECTRICAL OUTPUT SIGNAL OF THE SOLID ELECTROLYTE OXYGEN CELL ASSEMBLY BY SUITABLE MONITORING CIRCUITRY PROVIDES ELECTRICAL OUTPUT SIGNALS INDICATIVE OF BOTH THE OXYGEN AND COMBUSTIBLES CONTENT IN THE ORIGINAL GAS MIXTURE. D R A W I N G

Inventors

• 👤 A Pebler
• 👤 W Hickam

Bibliographic Details