Catalytic converter efficiency monitoring
Catalytic converter for a diesel engine
Catalytic converter heating
Catalytic converter monitor method and apparatus
Catalytic converter monitoring using downstream oxygen sensor
Catalytic converter system
Catalytic EGR oxidizer for IC engines and gas turbines
Catalytic exhaust gas purifier and catalytic method of purifying
Catalytic method
Catalytic monitoring method
Catalytic reduction of nitrogen oxides in methane-fueled engine
Catalytic reduction system for oxygen-rich exhaust
Catalytic system
Catalytic treatment of engine exhaust gas
Clean power system
Close-coupled catalytic converter system
Closed loop bias air/fuel ratio offset to enhance catalytic conv
Closed loop control for desulfating a NO.sub.x trap
Closely coupled exhaust catalyst system and engine strategy asso
Combatting air pollution