JPS57195815A - Exhaust gas purifier of internal combustion engine - Google Patents

Exhaust gas purifier of internal combustion engine

Info

Publication number
JPS57195815A
JPS57195815A JP8140081A JP8140081A JPS57195815A JP S57195815 A JPS57195815 A JP S57195815A JP 8140081 A JP8140081 A JP 8140081A JP 8140081 A JP8140081 A JP 8140081A JP S57195815 A JPS57195815 A JP S57195815A
Authority
JP
Japan
Prior art keywords
catalyzer
exhaust gas
internal combustion
combustion engine
monolithic
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
JP8140081A
Other languages
Japanese (ja)
Inventor
Hiroshi Hirayama
Yoshihiro Suzuki
Shigenori 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.)
Toyota Motor Corp
Original Assignee
Toyota 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP8140081A priority Critical patent/JPS57195815A/en
Publication of JPS57195815A publication Critical patent/JPS57195815A/en
Pending 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PURPOSE:To increase purification efficiency, in a monolithic catalyzer purifying a harmful component in exhaust has from an internal combustion engine, by flowing the exhaust gas only through the central part of the catalyzer immediately after atarting of the engine further flowing the exhaust gas fully through the catalyzer after warm up of the exhaust gas. CONSTITUTION:In a ctalytic converter 1, a monolithic catalyzer 2 is held in an outer shell 3 by retainers 5, 5' through cushions 4, 4', consisting of heat resistant material, simultaneously a wire net 6, for protecting said catalyzer 2 from damage, is interposed between the monolithic catalyzer 2 and the outer shell 3. Then a selector valve 9, for flowing exhaust gas from an internal combustion engine to the catalyzer central part 2a and the whole unit, is provided to the junction part of an inlet cone 7 and exhaust pipe 8 in the catalyzer converter 1. Then the selector valve 9 is controlled by a suitable control device, to both flow exhaust gas only through the catalyzer central part 2a at cold time immediately after starting of the internal combustion engine and flow the exhaust gas fully through the catalyzer parts 2a, 2b after the exhaust gas is fully warmed.
JP8140081A 1981-05-28 1981-05-28 Exhaust gas purifier of internal combustion engine Pending JPS57195815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8140081A JPS57195815A (en) 1981-05-28 1981-05-28 Exhaust gas purifier of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8140081A JPS57195815A (en) 1981-05-28 1981-05-28 Exhaust gas purifier of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57195815A true JPS57195815A (en) 1982-12-01

Family

ID=13745257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8140081A Pending JPS57195815A (en) 1981-05-28 1981-05-28 Exhaust gas purifier of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57195815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030314U (en) * 1983-08-06 1985-03-01 トヨタ自動車株式会社 monolith catalytic converter
US5582002A (en) * 1994-06-29 1996-12-10 Pattas; Konstantin Method of and an apparatus for controlled regeneration of a diesel soot filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030314U (en) * 1983-08-06 1985-03-01 トヨタ自動車株式会社 monolith catalytic converter
US5582002A (en) * 1994-06-29 1996-12-10 Pattas; Konstantin Method of and an apparatus for controlled regeneration of a diesel soot filter

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