Flow rate control apparatus in exhaust gas recirculation system

Patent · Tue Jun 07 04:00:00 EDT 1977

OSTI ID:7253303

Yamamoto, T; Yoneda, K

A sonic nozzle is formed in a recirculation passage interconnecting the exhaust line to the induction passage of an internal combustion engine and a valve member is arranged to vary the throat area of the nozzle, while the induction passage has a similar combination of sonic nozzle and a valve member. The control apparatus has a valve actuating mechanism arranged to link the respective valve members in the sonic nozzles with a common element which is necessarily moved when a change in the engine speed is intended, so that the throat area in the recirculation passage is varied always in direct relation to the throat area in the induction passage.

• Assignee: Nissan Motor Co., Ltd.
• Patent Number(s): US 4027636
• OSTI ID: 7253303
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
AUTOMOBILES
CONTROL EQUIPMENT
DESIGN
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLOW REGULATORS
GASEOUS WASTES
INTERNAL COMBUSTION ENGINES
POLLUTION CONTROL EQUIPMENT
VEHICLES
WASTES