Exhaust gas recirculation system for an internal combustion engine

Patent · Tue May 01 04:00:00 EDT 1984

OSTI ID:6470729

Higashi, K

In an internal combustion engine having an intake passage provided therein with a throttle valve for controlling intake flow of air or an air-fuel mixture passing therethrough toward engine cylinders and an exhaust passage, an exhaust gas recirculation system comprises first means for conducting a portion of the exhaust gases from the exhaust passage into the intake passage downstream of the throttle valve and second means provided in the intake passage downstream of the throttle valve for preventing the exhaust gases fed through said first means from flowing upstream toward the throttle valve. Accordingly, the response accuracy of the throttle valve is protected from being impaired due to deposition of exhaust gas contaminants thereon.

• Assignee: Nissan Motor Company Limited (Japan)
• Patent Number(s): US 4445487
• OSTI ID: 6470729
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR FLOW
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUIDS
FOULING
FUEL-AIR RATIO
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
VALVES
WASTES