dave27
11-21-2002, 01:51 PM
http://ipdl.wipo.int/cgi-bin/ifetch5?ENG+PCT-472002+6+1050914-REVERSE+0+0+1175+BASICHTML-ENG+1+1+1+25+SEP-0/HITNUM,B,NULL+sunstein
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SYSTEM AND METHOD FOR SENSOR CONTROL OF THE FUEL-AIR RATIO IN A BURNER
(71) NEW POWER CONCEPTS LLC 340 Commercial Street, Manchester, NH 03101; (US). [US/US].
A method for controlling the fuel-air ratio of a burner having a blower responsive to a blower drive signal for injecting air into the burner. The method is based at least on the concentration of a gas in an exhaust gas product of a combustion chamber of the burner and includes measuring the gas concentration in the exhaust gas product, deriving a gas concentration signal from the measured gas concentration, determining the fuel-air ratio from the gas concentration signal and the sign of the derivative of the gas concentration signal with respect to the blower drive signal, and controlling the fuel-air ratio by adjusting the air flow rate into the burner. The burner may be, for example, in a Stirling cycle engine.
-dave
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password:guest
SYSTEM AND METHOD FOR SENSOR CONTROL OF THE FUEL-AIR RATIO IN A BURNER
(71) NEW POWER CONCEPTS LLC 340 Commercial Street, Manchester, NH 03101; (US). [US/US].
A method for controlling the fuel-air ratio of a burner having a blower responsive to a blower drive signal for injecting air into the burner. The method is based at least on the concentration of a gas in an exhaust gas product of a combustion chamber of the burner and includes measuring the gas concentration in the exhaust gas product, deriving a gas concentration signal from the measured gas concentration, determining the fuel-air ratio from the gas concentration signal and the sign of the derivative of the gas concentration signal with respect to the blower drive signal, and controlling the fuel-air ratio by adjusting the air flow rate into the burner. The burner may be, for example, in a Stirling cycle engine.
-dave