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Exhaust gas recirculation apparatus for internal combustion engine

Patent:

Abstract

An exhaust gas recirculation device to reduce nitrogen oxides emission from internal combustion engines is described. The recirculation is achieved by employing a tube connecting between the exhaust pipe and intake tube. A throttle valve is installed within the exhaust pipe between the muffler and recirculation tube, and regulated by exhaust gas temperature. Whenever the gas temperature is high, the valve closes and increases the gas flow to the intake tube. A temperature sensor is installed within the exhaust pipe and controls a solenoid or magnetic air valve linking to the throttle valve through a relay. The recirculation tube can be cooled by a fan to improve the engine power.
Publication Date:
Jan 07, 1975
Product Type:
Patent
Report Number:
JP 1950-211
Reference Number:
EDB-77-050107
Resource Relation:
Patent File Date: Filed date 22 Dec 1970
Subject:
33 ADVANCED PROPULSION SYSTEMS; EXHAUST RECIRCULATION SYSTEMS; DESIGN; INTERNAL COMBUSTION ENGINES; AIR POLLUTION CONTROL; NITROGEN OXIDES; OPERATION; TEMPERATURE DEPENDENCE; TUBES; VALVES; CHALCOGENIDES; CONTROL EQUIPMENT; ENGINES; EQUIPMENT; EXHAUST SYSTEMS; FLOW REGULATORS; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLLUTION CONTROL; POLLUTION CONTROL EQUIPMENT; 330701* - Emission Control- Nitrogen Oxides
OSTI ID:
7332822
Country of Origin:
Japan
Language:
Japanese
Submitting Site:
APA
Size:
Pages: 3
Announcement Date:

Patent:

Citation Formats

Shigemori, M, and Eguchi, N. Exhaust gas recirculation apparatus for internal combustion engine. Japan: N. p., 1975. Web.
Shigemori, M, & Eguchi, N. Exhaust gas recirculation apparatus for internal combustion engine. Japan.
Shigemori, M, and Eguchi, N. 1975. "Exhaust gas recirculation apparatus for internal combustion engine." Japan.
@misc{etde_7332822,
title = {Exhaust gas recirculation apparatus for internal combustion engine}
author = {Shigemori, M, and Eguchi, N}
abstractNote = {An exhaust gas recirculation device to reduce nitrogen oxides emission from internal combustion engines is described. The recirculation is achieved by employing a tube connecting between the exhaust pipe and intake tube. A throttle valve is installed within the exhaust pipe between the muffler and recirculation tube, and regulated by exhaust gas temperature. Whenever the gas temperature is high, the valve closes and increases the gas flow to the intake tube. A temperature sensor is installed within the exhaust pipe and controls a solenoid or magnetic air valve linking to the throttle valve through a relay. The recirculation tube can be cooled by a fan to improve the engine power.}
place = {Japan}
year = {1975}
month = {Jan}
}