Exhaust gas recirculation control system for an internal combustion engine

Patent · Tue Sep 01 00:00:00 EDT 1981

OSTI ID:5681804

Ueda, T

An exhaust gas recirculation control system is disclosed for particular application to a diesel engine, which includes a combination of a fuel injection pump having a movable fuel amount determining element whose position regulates the amount of fuel injected, a conversion device having a fixed orifice and a variable orifice provided downstream of the fixed orifice and whose effective opening area is varied according to the movement of the fuel amount determining element, whereby, when a constant fluid pressure is supplied to the fixed orifice, a fluid pressure which changes according to the amount of fuel injected is taken off at a middle portion between the fixed and variable orifices, and a fluid pressure actuator which operates an exhaust gas recirculation control valve by being energized by the fluid pressure taken off from the abovementioned middle portion.

• Assignee: Toyota Jidosha Kogyo K K (Japan)
• Patent Number(s): US 4286567
• OSTI ID: 5681804
• Resource Relation: Patent File Date: Filed date 27 Dec 1979
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
DIESEL ENGINES
EXHAUST RECIRCULATION SYSTEMS
CONTROL SYSTEMS
FLOW RATE
FLUID FLOW
FUEL INJECTION SYSTEMS
ORIFICES
PRESSURE REGULATORS
PUMPS
VALVES
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
FUEL SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPENINGS
POLLUTION CONTROL EQUIPMENT
330102* - Internal Combustion Engines- Diesel
330700 - Advanced Propulsion Systems- Emission Control