JPS5765811A - Exhaust gas purifier for diesel engine - Google Patents

Exhaust gas purifier for diesel engine

Info

Publication number
JPS5765811A
JPS5765811A JP14128980A JP14128980A JPS5765811A JP S5765811 A JPS5765811 A JP S5765811A JP 14128980 A JP14128980 A JP 14128980A JP 14128980 A JP14128980 A JP 14128980A JP S5765811 A JPS5765811 A JP S5765811A
Authority
JP
Japan
Prior art keywords
filter
engine
valve
carbon particles
signal
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
JP14128980A
Other languages
Japanese (ja)
Other versions
JPS632004B2 (en
Inventor
Shigeru Sakurai
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
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP14128980A priority Critical patent/JPS5765811A/en
Publication of JPS5765811A publication Critical patent/JPS5765811A/en
Publication of JPS632004B2 publication Critical patent/JPS632004B2/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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

PURPOSE:To make it possible to reform a filter for trapping carbon particles even in engine operation by shutting-off a valve positioned downstream of the filter, in a predetermined period, for raising a temperature in the inside of the filter when the engine operated under the intermediate load. CONSTITUTION:Exhaust gas discharged from an engine 1 and containing carbon particles is purified through a filter 4 made of ceramic or the like, and is discharged to the atmosphere. When the filter 4 is blocked, backpressure is increased, which is detected by a pressure sensor 12 disposed upstream of the filter 4. Therefore, the sensor 12 produces a signal S2. Further, when a detector 13 detects the condition that the engine is operated under the intermediate load, it produces a signal S3. Therefore, if both signals S2, S3 are applied to a controller 11 which, therefore, generates a signal S1 during the period that is set by a timer 14 within a range 1-10sec, a passage communicating to an operating chamber 7b in a diaphragm unit 7 actuating a shut-off valve 5 which is disposed in an exhaust pipe downstream of the filter 7, is diverted to communicate with a negative pressure source 10 by a 3-way valve 5 which switches the passage opened to the atmosphere, by receiving the S1, so as to be in communication with the negative pressure source. Thereby the valve 5 is closed to raise a temperature in the inside of the filter, resulting in that carbon particles are burnt, thereby to reform the filter.
JP14128980A 1980-10-09 1980-10-09 Exhaust gas purifier for diesel engine Granted JPS5765811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14128980A JPS5765811A (en) 1980-10-09 1980-10-09 Exhaust gas purifier for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14128980A JPS5765811A (en) 1980-10-09 1980-10-09 Exhaust gas purifier for diesel engine

Publications (2)

Publication Number Publication Date
JPS5765811A true JPS5765811A (en) 1982-04-21
JPS632004B2 JPS632004B2 (en) 1988-01-16

Family

ID=15288417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14128980A Granted JPS5765811A (en) 1980-10-09 1980-10-09 Exhaust gas purifier for diesel engine

Country Status (1)

Country Link
JP (1) JPS5765811A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187513A (en) * 1982-04-28 1983-11-01 Toyota Motor Corp Method for regenerate particle collector for diesel engine
EP0104783A2 (en) * 1982-09-23 1984-04-04 General Motors Corporation Regeneration control system for a diesel engine exhaust particulate filter
JPS61128325U (en) * 1985-01-31 1986-08-12
DE3538109C1 (en) * 1985-10-26 1987-02-26 Man Technologie Gmbh Diesel engine with soot filter
JP2008106698A (en) * 2006-10-26 2008-05-08 Toyota Motor Corp Exhaust emission control system for internal combustion engine
CN100416051C (en) * 2004-08-24 2008-09-03 日产自动车株式会社 Diesel particulate filter regenerator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930034A (en) * 1972-07-17 1974-03-18
JPS5482632U (en) * 1977-11-22 1979-06-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930034A (en) * 1972-07-17 1974-03-18
JPS5482632U (en) * 1977-11-22 1979-06-12

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58187513A (en) * 1982-04-28 1983-11-01 Toyota Motor Corp Method for regenerate particle collector for diesel engine
JPH0530962B2 (en) * 1982-04-28 1993-05-11 Toyota Motor Co Ltd
EP0104783A2 (en) * 1982-09-23 1984-04-04 General Motors Corporation Regeneration control system for a diesel engine exhaust particulate filter
JPS61128325U (en) * 1985-01-31 1986-08-12
JPH0352972Y2 (en) * 1985-01-31 1991-11-19
DE3538109C1 (en) * 1985-10-26 1987-02-26 Man Technologie Gmbh Diesel engine with soot filter
CN100416051C (en) * 2004-08-24 2008-09-03 日产自动车株式会社 Diesel particulate filter regenerator
JP2008106698A (en) * 2006-10-26 2008-05-08 Toyota Motor Corp Exhaust emission control system for internal combustion engine

Also Published As

Publication number Publication date
JPS632004B2 (en) 1988-01-16

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