Exhaust gas purifying device for internal combustion engine with auxiliary combustion chambers

Patent · Tue Aug 29 04:00:00 EDT 1978

OSTI ID:6487411

Kawamura, H; Kubota, K

The recirculating and recombustion type of exhaust gas purification system for a compression ignition engine includes an expansion manifold communicating with the auxiliary combustion chambers of each cylinder via circulating passages controlled by cam oprated valves. The relatively rich exhaust gas remaining near the fuel injector in an auxiliary chamber at the end of a power stroke is expanded into the manifold via an open control valve, and it then drawn into the auxiliary chamber of another cylinder whose piston is near the bottom of its intake or suction stroke via another open control valve. The thus recirculated or transferred exhaust gas is cooled by its expansion into the manifold, as well as by water jacketing within the cylinder heat and air surrounding the exposed periphery of the manifold.

• Assignee: Isuzu Motors Limited
• Patent Number(s): US 4109625
• OSTI ID: 6487411
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101 -- Internal Combustion Engines-- Spark-Ignition
330700* -- Advanced Propulsion Systems-- Emission Control
AUTOMOBILES
DESIGN
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
VEHICLES