JPS54158515A - Discharge gas purifying device for internal combution engine - Google Patents

Discharge gas purifying device for internal combution engine

Info

Publication number
JPS54158515A
JPS54158515A JP6577678A JP6577678A JPS54158515A JP S54158515 A JPS54158515 A JP S54158515A JP 6577678 A JP6577678 A JP 6577678A JP 6577678 A JP6577678 A JP 6577678A JP S54158515 A JPS54158515 A JP S54158515A
Authority
JP
Japan
Prior art keywords
discharge
catalyst
ternary
catalysts
air
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.)
Granted
Application number
JP6577678A
Other languages
Japanese (ja)
Other versions
JPS5712003B2 (en
Inventor
Fukashi Sugasawa
Haruhiko Iizuka
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 JP6577678A priority Critical patent/JPS54158515A/en
Publication of JPS54158515A publication Critical patent/JPS54158515A/en
Publication of JPS5712003B2 publication Critical patent/JPS5712003B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE: To establish an air-fuel ratio at an excessive density side in the case of a part of cylinders being on a standstill, to discharge sperately discharge gased from a stopping cylinder group and a working cylinder group so that they will be brough in a seperate contact with either one of two catalysts to deoxidize NOx, and afterward to oxidize by the use of a ternary catalyst.
CONSTITUTION: Discharge gases of from No. I to No. III and from No. IV to No. VI are seperately collected after passing through 6' and 6'' respectively. A discharge sensor 4 is mounted at a partition wall positioned at the middle of the discharge pipes 6' and 6''. The inside of a ternary catalyst 7 is also divided into two rooms where ternary catalysts 7' and 7'' are situated individually from each other, and a ternary catalyst 8 is placed following the catalysts 7' and 7''. For example, when No. I to No. III cylinders are on a standstill, what passes through the discharge pipe 6' is only air, and discharge gas passing through the discharge pipe 6'' becomes short of oxygen because an air-fuel mixture is set at an excessive density side, and the ternary catalyst 7'' acts as a deoxidizing catalyst. The ternary catalyst 8 can then act as an oxidizing catalyst.
COPYRIGHT: (C)1979,JPO&Japio
JP6577678A 1978-06-02 1978-06-02 Discharge gas purifying device for internal combution engine Granted JPS54158515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6577678A JPS54158515A (en) 1978-06-02 1978-06-02 Discharge gas purifying device for internal combution engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6577678A JPS54158515A (en) 1978-06-02 1978-06-02 Discharge gas purifying device for internal combution engine

Publications (2)

Publication Number Publication Date
JPS54158515A true JPS54158515A (en) 1979-12-14
JPS5712003B2 JPS5712003B2 (en) 1982-03-08

Family

ID=13296765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6577678A Granted JPS54158515A (en) 1978-06-02 1978-06-02 Discharge gas purifying device for internal combution engine

Country Status (1)

Country Link
JP (1) JPS54158515A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484440A (en) * 1981-10-26 1984-11-27 Nissan Motor Company, Limited Exhaust manifold of dual type formed with chamber to receive exhaust gas sensor
JP2013204514A (en) * 2012-03-28 2013-10-07 Honda Motor Co Ltd Exhaust system of variable cylinder engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4484440A (en) * 1981-10-26 1984-11-27 Nissan Motor Company, Limited Exhaust manifold of dual type formed with chamber to receive exhaust gas sensor
JP2013204514A (en) * 2012-03-28 2013-10-07 Honda Motor Co Ltd Exhaust system of variable cylinder engine

Also Published As

Publication number Publication date
JPS5712003B2 (en) 1982-03-08

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