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U.S. Department of Energy
Office of Scientific and Technical Information

Egr control system of multi-cylinder engines

Patent ·
OSTI ID:5399211
A multi-cylinder internal combustion engine is equipped with an egr control system in which the amount of the exhaust gases recirculated back to the cylinders of the engine is controlled in accordance with the intake vacuum in an intake passageway. The engine is constructed and arranged to control the number of cylinders operated in accordance with engine operating conditions. The egr control system is provided with a device which can maintain a suitable exhaust gas recirculation even when a certain number of cylinders are not operated.
Assignee:
Nissan Motor Co Ltd (Japan)
Patent Number(s):
US 4184470
OSTI ID:
5399211
Country of Publication:
United States
Language:
English