GB1400984A - Cleaning exhaust gases of internal combustion engines - Google Patents

Cleaning exhaust gases of internal combustion engines

Info

Publication number
GB1400984A
GB1400984A GB4315373A GB4315373A GB1400984A GB 1400984 A GB1400984 A GB 1400984A GB 4315373 A GB4315373 A GB 4315373A GB 4315373 A GB4315373 A GB 4315373A GB 1400984 A GB1400984 A GB 1400984A
Authority
GB
United Kingdom
Prior art keywords
exhaust gases
silencer
valve
pipe
catalyst
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
GB4315373A
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 GB1400984A publication Critical patent/GB1400984A/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
    • F01N3/18—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
    • F01N3/24—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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single housing
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

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)
  • Exhaust Silencers (AREA)

Abstract

1400984 Treating exhaust gases; bypassing catalytic converters DAIMLER-BENZ AG 13 Sept 1973 [29 Sept 1972] 43153/73 Headings B1F and B1W A catalyst system for treating I.C. engine exhaust gases comprises catalyst 5 enclosed in a jacket 4 which is non-rectangular in a cross-section normal to the gas flow direction and is enclosed in a casing 3 which is rectangular in the same cross-section or vice versa, the outlet(s) 9-12 from the jacket(s) passing through a silencer 7 and joining downstream thereof a pipe 15 which extends through the silencer and is provided with a valve 18 to control flow of gas through the exhaust pipe. At low engine speed, the valve 18 is closed and the exhaust gases all pass through the catalyst; but at higher engine speed, valve 18 is opened by an electric motor 19 and most of the exhaust gases pass through the spaces between the jackets 4 and the casing 3 and then via pipe 15 which is perforated where it passes through the silencer 7. A further silencer 23 is also provided.
GB4315373A 1972-09-29 1973-09-13 Cleaning exhaust gases of internal combustion engines Expired GB1400984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722247947 DE2247947A1 (en) 1972-09-29 1972-09-29 DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
GB1400984A true GB1400984A (en) 1975-07-16

Family

ID=5857808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4315373A Expired GB1400984A (en) 1972-09-29 1973-09-13 Cleaning exhaust gases of internal combustion engines

Country Status (3)

Country Link
DE (1) DE2247947A1 (en)
FR (1) FR2205100A5 (en)
GB (1) GB1400984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000046A (en) * 1977-07-01 1979-01-04 Johnson Matthey Co Ltd Catalytic Conversion of Exhaust Gas

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528208A1 (en) * 1985-08-06 1987-02-12 Interatom ASSEMBLED CATALYST SUPPORT BODY WITH LARGE CROSS-SECTIONAL AREA
DE3629945A1 (en) * 1986-09-03 1987-10-01 Daimler Benz Ag Device for aftertreatment of the exhaust gases of an internal combustion engine
US5048287A (en) * 1988-08-15 1991-09-17 Arvin Industries, Inc. Tuned exhaust processor assembly
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5009065A (en) * 1988-08-15 1991-04-23 Arvin Industries, Inc. Tuned exhaust processor assembly
DE8810816U1 (en) * 1988-08-26 1989-12-21 Emitec Gesellschaft für Emissionstechnologie mbH, 53797 Lohmar Catalyst housing, in particular for starting catalysts, and associated catalyst carrier body
FR2902825B1 (en) * 2006-06-21 2011-03-04 Peugeot Citroen Automobiles Sa EXHAUST LINE FOR IGNITION ENGINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000046A (en) * 1977-07-01 1979-01-04 Johnson Matthey Co Ltd Catalytic Conversion of Exhaust Gas
GB2000046B (en) * 1977-07-01 1982-03-24 Johnson Matthey Co Ltd Improved catalyst

Also Published As

Publication number Publication date
DE2247947A1 (en) 1974-04-11
FR2205100A5 (en) 1974-05-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee