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U.S. Department of Energy
Office of Scientific and Technical Information

Exhaust gas recirculation control

Patent ·
OSTI ID:5642905
An exhaust gas recirculation control assembly senses a throttle position related vacuum signal, an engine speed related pressure, and atmospheric pressure to create a subatmospheric control pressure suitable for actuating a diaphragm operated exhaust gas recirculation control valve.
Assignee:
General Motors Corp.
Patent Number(s):
US 4387693
OSTI ID:
5642905
Country of Publication:
United States
Language:
English