JPS6424107A - Improvement in exhaust gas behavior of multi- cylinder gasoline engine with exhaust gas catalyst to be adjusted - Google Patents

Improvement in exhaust gas behavior of multi- cylinder gasoline engine with exhaust gas catalyst to be adjusted

Info

Publication number
JPS6424107A
JPS6424107A JP15825088A JP15825088A JPS6424107A JP S6424107 A JPS6424107 A JP S6424107A JP 15825088 A JP15825088 A JP 15825088A JP 15825088 A JP15825088 A JP 15825088A JP S6424107 A JPS6424107 A JP S6424107A
Authority
JP
Japan
Prior art keywords
exhaust gas
catalyst
gas flow
lambda sensor
gasoline engine
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
JP15825088A
Other languages
Japanese (ja)
Inventor
Shiyutoraupu Bueruneru
Zaireru Giyunteru
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of JPS6424107A publication Critical patent/JPS6424107A/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
    • F01N3/24—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
    • 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
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector

Landscapes

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

Abstract

PURPOSE: To make more precise control of air fuel ratio, possible by homogenizing exhaust gas flow in a prior stage of a sensor relating to an engine equipped with an exhaust gas catalyst contained in the exhaust gas system in which the air fuel ratio is controlled by outputs from a Lambda sensor disposed up- stream side of the catalyst. CONSTITUTION: This invention relates to a multi-cylinder gasoline engine having an adjustable exhaust gas catalyst. In order to improve the behaviors of exhaust gas and minimize their scatter variability, an exhaust gas flow is constructed in such a way as to homogenize it up-stream side of a Lambda sensor. For example, in front of the Lambda sensor, the exhaust gas flow is made to be conducted by way of a cut-in piece which generates turbulence, or the exhaust gas flow in front of the Lambda sensor, is made to be conducted passing through metallic meshes of a net, with a mesh of 2-5 mm in size.
JP15825088A 1987-07-08 1988-06-28 Improvement in exhaust gas behavior of multi- cylinder gasoline engine with exhaust gas catalyst to be adjusted Pending JPS6424107A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873722503 DE3722503A1 (en) 1987-07-08 1987-07-08 Method for improving the exhaust gas behaviour of multi-cylinder spark-ignition engines with controlled exhaust-gas catalytic convertor

Publications (1)

Publication Number Publication Date
JPS6424107A true JPS6424107A (en) 1989-01-26

Family

ID=6331107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15825088A Pending JPS6424107A (en) 1987-07-08 1988-06-28 Improvement in exhaust gas behavior of multi- cylinder gasoline engine with exhaust gas catalyst to be adjusted

Country Status (2)

Country Link
JP (1) JPS6424107A (en)
DE (1) DE3722503A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006042342A1 (en) * 2006-09-08 2008-03-27 Robert Bosch Gmbh Device for exhaust aftertreatment and their use
DE102009015898B4 (en) * 2009-04-01 2022-05-12 Bayerische Motoren Werke Aktiengesellschaft Device for exhaust aftertreatment for a motor vehicle internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648521B2 (en) * 1982-12-28 1989-02-14 Meidensha Electric Mfg Co Ltd

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536315A1 (en) * 1985-10-11 1987-04-16 Sueddeutsche Kuehler Behr Catalyst arrangement for the purification of exhaust gases, in particular of an internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648521B2 (en) * 1982-12-28 1989-02-14 Meidensha Electric Mfg Co Ltd

Also Published As

Publication number Publication date
DE3722503A1 (en) 1989-01-19

Similar Documents

Publication Publication Date Title
CA2033400A1 (en) Apparatus and method to reduce automotive emissions using filter catalyst interactive with uego
EP0799988A3 (en) Air-fuel ratio control system for internal combustion engines
ES2009047A6 (en) Catalyzer with flow guiding body.
GB1385621A (en) Exhaust gas after burning system for internal combustion engine
DE69019338T2 (en) METHOD AND DEVICE FOR LEARNING AND CONTROLLING THE AIR / FUEL RATIO IN AN INTERNAL COMBUSTION ENGINE.
GB1126529A (en) Apparatus for detoxicating exhaust gases of internal combustion engines
EP1091110A3 (en) Air-fuel ratio control apparatus for multicylinder internal combustion engine
ATE237073T1 (en) AIR INJECTION STRATEGIES FOR EFFECTIVE COMBUSTION OF HYDROCARBONS ELIMINATED THROUGH A HYDROCARBON FILTER
KR970059479A (en) Control device for internal combustion engine
DE59600975D1 (en) DEVICE FOR PURIFYING EXHAUST GAS FROM A MIX-COMPRESSING COMBUSTION ENGINE
GB1501230A (en) Air/fuel ratio control system in internal combustion engine
DE69425920T2 (en) System for feedback control of the air / fuel ratio in an internal combustion engine
JPS6424107A (en) Improvement in exhaust gas behavior of multi- cylinder gasoline engine with exhaust gas catalyst to be adjusted
EP0899441A3 (en) Air-fuel ratio control system for multi-cylinder internal combustion engines
JPS5666441A (en) Electronically controlled carburetor
JPS6453043A (en) Air-fuel ratio controller for internal combustion engine
KR890013326A (en) Fuel control device of internal combustion engine
DE69006584T2 (en) Method and apparatus for learning and controlling the air / fuel ratio in an internal combustion engine.
EP0758049A3 (en) Controller for multi-cylinder engine
DE3871057D1 (en) DEVICE FOR CONTROLLING THE AIR / FUEL RATIO IN AN INTERNAL COMBUSTION ENGINE.
EP1785715A2 (en) PM generating apparatus
JPS56104110A (en) Carbon particle purifier for internal combustion engine
DE69701526D1 (en) SYSTEM FOR REGULATING THE AIR / FUEL RATIO IN A COMBUSTION ENGINE
ES268609U (en) Fuel-air supply device for an internal combustion engine
JPS64312A (en) Spark-ignition engine with catalizer