Exhaust gas recirculation control system
Patent
·
OSTI ID:6605729
An exhaust gas recirculation (EGR) control valve is described. The valve is provided with an extension which is inserted into a restriction, formed in the EGR passageway upstream of the EGR control valve, to reduce the effective cross sectional area of the restriction and therefore the EGR ratio when the pressure in the EGR passageway between the restriction and the EGR control valve is reduced below a predetermined value due to increases in an engine suction vacuum during low load engine operating conditions.
- Assignee:
- Nissan Motor Co., Ltd.
- Patent Number(s):
- US 4114577
- OSTI ID:
- 6605729
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330701* -- Emission Control-- Nitrogen Oxides
AIR POLLUTION CONTROL
CHALCOGENIDES
DESIGN
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VEHICLES
330701* -- Emission Control-- Nitrogen Oxides
AIR POLLUTION CONTROL
CHALCOGENIDES
DESIGN
ENGINES
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
INTERNAL COMBUSTION ENGINES
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
VEHICLES