Diesel engine particulate trap regeneration system

• Main Author: HARDY; JAMES A
• Format: Patent
• Language: English
• Published: 06.06.1989
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

A diesel engine exhaust particulate trap and regeneration system for trapping and periodically burning the particulates in the engine exhaust. Collected particulates are burned in the trap (32) by increasing the trap temperature by using a back pressure valve (34) in the exhaust gas line (30) . A microprocessor (38), which receives engine operating parameters via various sensors, compares the sensed parameter valves with engine maps stored in its memory and opens or closes the valve (34) via an actuator in response thereto.