JPS531719A - Exhaust emission control system for internal-combustion engine - Google Patents

Exhaust emission control system for internal-combustion engine

Info

Publication number
JPS531719A
JPS531719A JP7626676A JP7626676A JPS531719A JP S531719 A JPS531719 A JP S531719A JP 7626676 A JP7626676 A JP 7626676A JP 7626676 A JP7626676 A JP 7626676A JP S531719 A JPS531719 A JP S531719A
Authority
JP
Japan
Prior art keywords
internal
control system
combustion engine
emission control
exhaust emission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7626676A
Other languages
Japanese (ja)
Inventor
Shinichi Nanun
Kunihiko Sugihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP7626676A priority Critical patent/JPS531719A/en
Publication of JPS531719A publication Critical patent/JPS531719A/en
Pending legal-status Critical Current

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  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To remove NOx effectively and to improve the engine operation characteristics, by conducting exhaust gas recirculation (EGR) at a higher EGR rate in transient operation conditions and by reducing the EGR rate to a lower level in normal operation.
COPYRIGHT: (C)1978,JPO&Japio
JP7626676A 1976-06-28 1976-06-28 Exhaust emission control system for internal-combustion engine Pending JPS531719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7626676A JPS531719A (en) 1976-06-28 1976-06-28 Exhaust emission control system for internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7626676A JPS531719A (en) 1976-06-28 1976-06-28 Exhaust emission control system for internal-combustion engine

Publications (1)

Publication Number Publication Date
JPS531719A true JPS531719A (en) 1978-01-10

Family

ID=13600414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7626676A Pending JPS531719A (en) 1976-06-28 1976-06-28 Exhaust emission control system for internal-combustion engine

Country Status (1)

Country Link
JP (1) JPS531719A (en)

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