Integrated idle air and exhaust gas recirculation system

Patent · Tue Dec 10 00:00:00 EST 1991

OSTI ID:5637490

McKay, D L

An integrated idle air and exhaust gas recirculation control system for use on an internal combustion engine. A control valve assembly comprising a base having a central chamber therin and inlet means for the introduction of idle air and exhaust gas to the central chamber and an outlet opening for the supply of the idle air and exhaust gas to the engine; first and second source conduits in communication with the central chamber for supply of idle air and exhaust gas respectively to the base and an intake supply conduit disposed between the central chamber outlet and the engine for conducting the supply of idel air and exhaust gas thereto; an electronically controlled two-way valve assembly disposed between the first and second source conduits and the central chamber and movable from a first position in which idle air is supplied to the chamber to a second position in which exhaust gas is supplied to the chamber;an electronically controlled metering valve operable to meter the flow of idle air and exhaust gas through the central chamber outlet and having position sensing means for determining the position of the valve.

• Assignee: General Motors Corp., Detroit, MI (United States)
• Patent Number(s): US 5070838; A
• Application Number: PPN: US 7-653093
• OSTI ID: 5637490
• Resource Relation: Patent File Date: 8 Feb 1991
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
AIR POLLUTION CONTROL
ELECTRONIC EQUIPMENT
EXHAUST GASES
INTERNAL COMBUSTION ENGINES
EXHAUST RECIRCULATION SYSTEMS
AIR FLOW
VALVES
CONTROL
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
EXHAUST SYSTEMS
FLOW REGULATORS
FLUID FLOW
FLUIDS
GAS FLOW
GASEOUS WASTES
GASES
HEAT ENGINES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
WASTES
330700* - Advanced Propulsion Systems- Emission Control
330603 - Vehicle Design Factors- Engine System