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

Exhaust gas recirculation system

Patent ·
OSTI ID:5532658

An exhaust gas recirculation system comprises a valve assembly for controlling the recirculation of exhaust gases in such a manner as to maintain a difference between a first and second pressure at a predetermined value. The first pressure is a pressure in a zone in an air induction passage between a throttle valve therein and a flow restrictor disposed therein downstream of the throttle valve, while the second pressure is a pressure in a zone in an exhaust gas recirculation passage between an exhaust gas recirculation flow control valve member and a second flow restrictor disposed therein downstream of the valve member.

Assignee:
Nissan Motor Co Ltd (Japan)
Patent Number(s):
US 4186699
OSTI ID:
5532658
Country of Publication:
United States
Language:
English