Exhaust gas recirculation system

Patent · Tue Sep 21 04:00:00 EDT 1982

OSTI ID:6668916

Yoshiba, Y

In a diesel engine having a turbocharger for feeding supercharged air to the engine, an exhaust gas recirculation passage communicates between the exhaust passage from the engine and the intake passage to a compressor of the turbocharger. A first control valve closes the exhaust gas recirculation passage when the output pressure of the air leading from the compressor is lower than a first predetermined value or higher than a second predetermined value which is higher than the first predetermined value. A second control valve may be further provided within the exhaust gas recirculation passage so as to close the exhaust gas recirculation passage when the load applied to the engine is above a predetermined value.

• Assignee: Nissan Motor Co Ltd (Japan)
• Patent Number(s): US 4350013
• OSTI ID: 6668916
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102* -- Internal Combustion Engines-- Diesel
330700 -- Advanced Propulsion Systems-- Emission Control
CHALCOGENIDES
COMPRESSORS
CONTROL EQUIPMENT
DESIGN
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINERY
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
SUPERCHARGERS
TURBINES
TURBOMACHINERY
VALVES