JPS6483809A - Exhaust gas purifying device for engine - Google Patents

Exhaust gas purifying device for engine

Info

Publication number
JPS6483809A
JPS6483809A JP62241198A JP24119887A JPS6483809A JP S6483809 A JPS6483809 A JP S6483809A JP 62241198 A JP62241198 A JP 62241198A JP 24119887 A JP24119887 A JP 24119887A JP S6483809 A JPS6483809 A JP S6483809A
Authority
JP
Japan
Prior art keywords
exhaust gas
oxidation
filter
injection device
oxygen
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
JP62241198A
Other languages
Japanese (ja)
Inventor
Kunihiro Yagi
Hiroshi Murakami
Kazunori Ihara
Masako Yatani
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP62241198A priority Critical patent/JPS6483809A/en
Publication of JPS6483809A publication Critical patent/JPS6483809A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE:To enable the effective purification of NOX to be attained by providing an oxidation device, in which oxygen in exhaust gas is used for combustion and is consumed, and a catalyst, equipped with at least a purifying function of NOX, to be arranged in the downstream side of this oxidation device. CONSTITUTION:A Diesel engine 1 provides in its exhaust passage 2 a particulate filter 3 and a three-way catalyst 4 to be successively arranged from the upstream side, and the filter 3 provides an injection device 5 which injects an oxidation catalytic solution toward this filter 3. An oxidation device 8, which uses oxygen in exhaust gas for combustion to be consumed, is constituted of these filter 3 and injection device 5. The injection device 5 is constituted of a tank 9 storing the oxidation catalytic solution of water solution compound or the like of platinum group metal dissolved in water, injector 10 injecting this water dissolved solution and a jet flow pump 11, and when an O2 sensor 6 detects the oxygen in the exhaust gas to be placed in an excessive condition, the injection device 5 is controlled so as to inject the oxidation catalytic solution.
JP62241198A 1987-09-25 1987-09-25 Exhaust gas purifying device for engine Pending JPS6483809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62241198A JPS6483809A (en) 1987-09-25 1987-09-25 Exhaust gas purifying device for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62241198A JPS6483809A (en) 1987-09-25 1987-09-25 Exhaust gas purifying device for engine

Publications (1)

Publication Number Publication Date
JPS6483809A true JPS6483809A (en) 1989-03-29

Family

ID=17070666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62241198A Pending JPS6483809A (en) 1987-09-25 1987-09-25 Exhaust gas purifying device for engine

Country Status (1)

Country Link
JP (1) JPS6483809A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0487332U (en) * 1990-12-14 1992-07-29
US6199375B1 (en) * 1999-08-24 2001-03-13 Ford Global Technologies, Inc. Lean catalyst and particulate filter control system and method
WO2007068328A1 (en) * 2005-12-13 2007-06-21 Volkswagen Aktiengesellschaft Method of reducing the nox emissions of diesel engines
JP2017066971A (en) * 2015-09-30 2017-04-06 マツダ株式会社 Exhaust emission control device for engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0487332U (en) * 1990-12-14 1992-07-29
US6199375B1 (en) * 1999-08-24 2001-03-13 Ford Global Technologies, Inc. Lean catalyst and particulate filter control system and method
WO2007068328A1 (en) * 2005-12-13 2007-06-21 Volkswagen Aktiengesellschaft Method of reducing the nox emissions of diesel engines
JP2017066971A (en) * 2015-09-30 2017-04-06 マツダ株式会社 Exhaust emission control device for engine

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