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Exhaust gas recirculation apparatus for diesel engine

Patent ·
OSTI ID:6715756
A predetermined amount of exhaust gas recirculation is constantly provided through a first passageway connected between an engine intake manifold and an exhaust manifold. A vacuum actuated valve constitutes a second passageway which is connected in parallel with the first passageway. The valve is opened to allow exhaust gas recirculation through the second passageway except during idling and heavy load operation of an engine, thereby preventing excessive emission of smoke under these conditions.
Assignee:
Nissan Diesel Kogyo K K (Japan)
Patent Number(s):
US 4349004
OSTI ID:
6715756
Country of Publication:
United States
Language:
English

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Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
CHALCOGENIDES
CONTROL
CONTROL EQUIPMENT
DESIGN
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VALVES
WASTES