STUFENLOS EINSTELLBARE STEUERUNG VON UMWELTVERSCHMUTZUNG VERRINGERNDEN CHEMIKALIEN FÜR VERBRENNUNGSQUELLEN

摘要

A plurality of separately-controllable, supply nozzles incorporating pulse-width modulated, solenoid-actuated metering valves precisely controls the introduction of pollution control chemicals into the effluent of a combustor to provide improvements in pollution reduction and/or economy of operation despite the existence of widely variable combustor loads.