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GB1242590A - A method for reducing the concentration of toxic gaseous constituents in the exhaust of internal combustion engines and such an internal combustion engine working in accordance with the said method - Google Patents

A method for reducing the concentration of toxic gaseous constituents in the exhaust of internal combustion engines and such an internal combustion engine working in accordance with the said method

Info

Publication number
GB1242590A
GB1242590A GB43322/68A GB4332268A GB1242590A GB 1242590 A GB1242590 A GB 1242590A GB 43322/68 A GB43322/68 A GB 43322/68A GB 4332268 A GB4332268 A GB 4332268A GB 1242590 A GB1242590 A GB 1242590A
Authority
GB
United Kingdom
Prior art keywords
internal combustion
exhaust
concentration
reducing
accordance
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.)
Expired
Application number
GB43322/68A
Inventor
Paul August
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1242590A publication Critical patent/GB1242590A/en
Expired 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
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/02—Preventing flow of idling fuel
    • F02M3/04—Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
    • 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

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

Abstract

1,242,590. Treating exhaust gases. P. AUGUST. Sept.12, 1968 [Oct.13, 1967], No.43322/68. Heading F1B. Exhaust gases are rendered less toxic by cutting off the fuel supply and/or admitting secondary air to the mixture during coasting or idling to increase the oxygen concentration in the exhaust gases to such an extent, e.g. above 2% by volume, that the toxic constituents are oxidized by a catalytic device in the exhaust pipe without the introduction of air into the exhaust pipe.
GB43322/68A 1967-10-13 1968-09-12 A method for reducing the concentration of toxic gaseous constituents in the exhaust of internal combustion engines and such an internal combustion engine working in accordance with the said method Expired GB1242590A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19671576454 DE1576454B2 (en) 1967-10-13 1967-10-13 MIXED COMPRESSING EXTERNAL IGNITION COMBUSTION MACHINES WITH A MIXTURE GENERATION DEVICE IN THE INTAKE SYSTEM
DEA0057050 1967-10-13

Publications (1)

Publication Number Publication Date
GB1242590A true GB1242590A (en) 1971-08-11

Family

ID=25753179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43322/68A Expired GB1242590A (en) 1967-10-13 1968-09-12 A method for reducing the concentration of toxic gaseous constituents in the exhaust of internal combustion engines and such an internal combustion engine working in accordance with the said method

Country Status (3)

Country Link
DE (1) DE1576454B2 (en)
FR (1) FR1589822A (en)
GB (1) GB1242590A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014055019A1 (en) * 2012-10-02 2014-04-10 Scania Cv Ab Regulation of concentration/fraction of substances in an exhaust stream
EP2920442A4 (en) * 2012-10-02 2017-07-05 Scania CV AB Regulation of concentration/fraction of substances in an exhaust stream
US10352256B2 (en) 2012-10-02 2019-07-16 Scania Cv Ab Regulation of concentration/fraction of substances in an exhaust stream

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703462A1 (en) * 1987-02-05 1988-08-18 Blume Axel METHOD FOR REDUCING POLLUTANTS IN THE EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE, AND DEVICE FOR IMPLEMENTING THE METHOD

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014055019A1 (en) * 2012-10-02 2014-04-10 Scania Cv Ab Regulation of concentration/fraction of substances in an exhaust stream
KR20150067281A (en) * 2012-10-02 2015-06-17 스카니아 씨브이 악티에볼라그 Regulation of concentration/fraction of substances in an exhaust stream
KR101713924B1 (en) 2012-10-02 2017-03-08 스카니아 씨브이 악티에볼라그 Regulation of concentration/fraction of substances in an exhaust stream
EP2920442A4 (en) * 2012-10-02 2017-07-05 Scania CV AB Regulation of concentration/fraction of substances in an exhaust stream
US10035500B2 (en) 2012-10-02 2018-07-31 Scania Cv Ab Regulation of concentration/fraction of substances in an exhaust stream
US10352256B2 (en) 2012-10-02 2019-07-16 Scania Cv Ab Regulation of concentration/fraction of substances in an exhaust stream

Also Published As

Publication number Publication date
DE1576454B2 (en) 1973-09-06
FR1589822A (en) 1970-04-06
DE1576454A1 (en) 1969-10-02

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