System and method for reducing particulate emissions from intern

System for controlling absorber regeneration

System for controlling air-fuel ratio in internal combustion eng

System for detecting deterioration of catalyst for purifying...

System for diagnosing deterioration of catalyst

System for exhaust gas purification and method for exhaust gas p

System for fueling and feeding chemicals to internal combustion

System for heating intake pipe of internal combustion engine

System for purifying exhaust gas for use in an automobile

System for reducing emissions in catalytic converter exhaust sys

System for reduction of harmful exhaust emissions from diesel en

Temperature control system for emission device coupled to direct

Test method for a device for injection of air into the exhaust g

Thermal reactor

Torque control for direct injected engines using a supplemental

Trap regenerative device control apparatus

Triple oxygen sensor arrangement

Tungsten-modified platinum NOx traps for automotive emission red

Turbulent flow precipitator for combustion in diesel or gasoline

Unitary hybrid exhaust system and method for reducing particulat