SE9101750L - EXHAUST SYSTEM WITH TWO PARALLEL CONNECTED CATALYST CELLS - Google Patents

EXHAUST SYSTEM WITH TWO PARALLEL CONNECTED CATALYST CELLS

Info

Publication number
SE9101750L
SE9101750L SE9101750A SE9101750A SE9101750L SE 9101750 L SE9101750 L SE 9101750L SE 9101750 A SE9101750 A SE 9101750A SE 9101750 A SE9101750 A SE 9101750A SE 9101750 L SE9101750 L SE 9101750L
Authority
SE
Sweden
Prior art keywords
exhaust system
exhaust
parallel connected
pipeline
arrangement
Prior art date
Application number
SE9101750A
Other languages
Swedish (sv)
Other versions
SE468322B (en
SE9101750D0 (en
Inventor
L Hellberg
Original Assignee
Volvo Ab
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 Volvo Ab filed Critical Volvo Ab
Priority to SE9101750A priority Critical patent/SE468322B/en
Publication of SE9101750D0 publication Critical patent/SE9101750D0/en
Publication of SE9101750L publication Critical patent/SE9101750L/en
Publication of SE468322B publication Critical patent/SE468322B/en

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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
    • 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
    • F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
    • 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
    • F01N13/009—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 having two or more separate purifying devices arranged in series
    • 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
    • F01N13/011—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 having two or more purifying devices arranged in parallel
    • F01N13/017—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 having two or more purifying devices arranged in parallel the purifying devices are arranged 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
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • 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
    • F01N2310/00—Selection of sound absorbing or insulating material
    • F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

An arrangement an exhaust system which comprises at least one pipeline 10, coming from an internal combustion engine, for exhaust gases, at least one silencer element 13 positioned downstream of the pipeline, and at least one catalyst unit positioned upstream of said silencer element. Members 20, which react to pressure increases in the exhaust system, are positioned upstream or downstream of the catalyst unit, with the function of reducing the pressure drop in the exhaust system when an exhaust pressure rising above a certain level is sensed. By means of this arrangement, the exhaust system can be optimized both for normal operation and for peak loads. <IMAGE>
SE9101750A 1991-04-16 1991-04-16 Exhaust system with two parallel-coupled catalyst cells SE468322B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9101750A SE468322B (en) 1991-04-16 1991-04-16 Exhaust system with two parallel-coupled catalyst cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101750A SE468322B (en) 1991-04-16 1991-04-16 Exhaust system with two parallel-coupled catalyst cells

Publications (3)

Publication Number Publication Date
SE9101750D0 SE9101750D0 (en) 1991-04-16
SE9101750L true SE9101750L (en) 1992-10-17
SE468322B SE468322B (en) 1992-12-14

Family

ID=20382972

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101750A SE468322B (en) 1991-04-16 1991-04-16 Exhaust system with two parallel-coupled catalyst cells

Country Status (1)

Country Link
SE (1) SE468322B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9304371D0 (en) * 1993-12-30 1993-12-30 Volvo Ab An exhaust gas purification device

Also Published As

Publication number Publication date
SE468322B (en) 1992-12-14
SE9101750D0 (en) 1991-04-16

Similar Documents

Publication Publication Date Title
DE69903066T2 (en) IMPROVEMENTS IN EXHAUST GAS PARTICULAR CONTROL
SE9803990L (en) Combustion engine arrangement
DK0998627T3 (en) Flue gas purifier for a diesel engine&#39;s flue gas
EP0972927A3 (en) Engine exhaust purification system and method
EP1013904A3 (en) Internal combustion engine having lean NOx catalyst
KR900013180A (en) Nitrogen oxide removal method in diesel engine exhaust
DE59700932D1 (en) OTTO ENGINE WITH PRESSURE SHAFT LOADER
EP1052393A3 (en) Air-fuel ratio control apparatus and method of internal combustion engine
MY141622A (en) Exhaust system for an engine
ATE186764T1 (en) EXHAUST LINE OF A OTTO ENGINE
KR920020067A (en) Air-fuel ratio control device of engine
KR910001229A (en) Air-fuel ratio control device of internal combustion engine
DK0770769T3 (en) Exhaust pipe system for a turbocharged four-stroke internal combustion engine
KR960011064A (en) Catalyst deterioration detection device of internal combustion engine
KR920018322A (en) Exhaust of the engine
EP1128033A3 (en) Diagnosis device for an engine
CA2150266A1 (en) Exhaust sensor
EP0690216A3 (en) Air-fuel ratio control system for internal combustion engines
EP1291500A3 (en) Exhaust device for multicylinder internal combustion engines
SE9101750L (en) EXHAUST SYSTEM WITH TWO PARALLEL CONNECTED CATALYST CELLS
KR910001228A (en) Air-fuel ratio control device of internal combustion engine
JPH05288040A (en) Internal combustion engine with denitration device
KR970021661A (en) Exhaust Purification System
WO2004018858A3 (en) Internal combustion engine and method for operating an internal combustion engine comprising a fuel regulating device
DE69206548D1 (en) Exhaust system for combustion gases.

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 9101750-9

Format of ref document f/p: F

NUG Patent has lapsed