Exhaust gas recirculation system
Patent
·
OSTI ID:5282453
Passage means are described for communicating an EGR passage between first and second EGR control valves. A vacuum chamber of an actuator of the second EGR control valve is prevented from being clogged by solids of the engine exhaust gases by the provision of an air pump for feeding air to fill the passage means between an orifice therein and the EGR passage with air and also to make the amount of engine exhaust gases passing through the orifice nearly zero.
- Assignee:
- Nissan Motor Co., Ltd.
- Patent Number(s):
- US 4048968
- OSTI ID:
- 5282453
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
AIR
AIR POLLUTION CONTROL
CHALCOGENIDES
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PUMPS
VALVES
WASTES
330701* -- Emission Control-- Nitrogen Oxides
AIR
AIR POLLUTION CONTROL
CHALCOGENIDES
CONTROL EQUIPMENT
CONTROL SYSTEMS
DESIGN
ENGINES
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PUMPS
VALVES
WASTES