WO2000008315A1 - Abgasschalldämpfer mit einem katalysator - Google Patents

Abgasschalldämpfer mit einem katalysator Download PDF

Info

Publication number
WO2000008315A1
WO2000008315A1 PCT/EP1999/005187 EP9905187W WO0008315A1 WO 2000008315 A1 WO2000008315 A1 WO 2000008315A1 EP 9905187 W EP9905187 W EP 9905187W WO 0008315 A1 WO0008315 A1 WO 0008315A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
housing
muffler
flow
inlet
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.)
Ceased
Application number
PCT/EP1999/005187
Other languages
German (de)
English (en)
French (fr)
Other versions
WO2000008315A9 (de
Inventor
Gerhard Stoll
Wolf Burger
Gustav WÖLPERT
Thomas Rieger
Ronald Hotz
Bernhard Dürr
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.)
Andreas Stihl AG and Co KG
Original Assignee
Andreas Stihl AG and Co KG
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 Andreas Stihl AG and Co KG filed Critical Andreas Stihl AG and Co KG
Priority to JP2000563924A priority Critical patent/JP2002522685A/ja
Priority to US09/762,048 priority patent/US6393835B1/en
Publication of WO2000008315A1 publication Critical patent/WO2000008315A1/de
Publication of WO2000008315A9 publication Critical patent/WO2000008315A9/de
Anticipated expiration legal-status Critical
Ceased 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
    • 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 exhaust gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F01N2470/04—Tubes being perforated characterised by shape, disposition or dimensions of apertures
    • 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 exhaust gas passages, pipes or tubes
    • F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
    • 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 exhaust gas passages, pipes or tubes
    • F01N2470/10—Tubes having non-circular cross section
    • 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
    • F01N2490/08—Two or more expansion chambers in series separated by apertured walls only
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/06—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices
    • 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
    • F01N3/06—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for extinguishing sparks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • a catalyst element 7 for treating the exhaust gases is arranged in the interior 6 of the muffler housing 1 between the exhaust gas inlet 4 and the exhaust gas outlet 5.
  • an intermediate wall 8 is arranged as an inner wall in the muffler housing 1, which is preferably clamped in the parting plane 9 of the housing shells 2 and 3 and divides the interior 6 of the muffler housing 1 in two separate directions transverse to the inflow direction 10 of the exhaust gases Divides chambers 11 and 12.
  • the chambers are in flow connection with one another via at least one connection opening 13 in the intermediate wall 8, with a plurality of connection openings 13 being provided in the exemplary embodiment shown.
  • the exhaust gas flow is divided into untreated partial flows 22 and treated partial flows 23 by the number and size of the connecting openings 13 and 13 'in the intermediate wall 8. If the connecting openings 13 are made very small, a large partial flow 23' will enter the catalyst element 7; If the connection openings 13 are omitted, the entire exhaust gas flow entering through the exhaust gas inlet between the receiving sleeves 29 is guided and treated via the catalyst element 7 before it flows out via the exhaust gas outlet 5.
  • a large number of connecting openings 13 ' opens between two catalyst plates 38, so that partial flows 23' of the untreated exhaust gas occur between two catalyst plates, and the treated exhaust gas flows as partial flow 23 into the outlet-side housing chamber 12 via the outlet openings 21 out.
  • the inner catalyst plates 38 have throughflow openings 44 corresponding to the outlet openings 21 in order to allow the exhaust gas to pass to the outflow openings 21.
  • connecting openings 13 between the chambers 11 and 12 are advantageously provided, through which an untreated partial flow 22 of the exhaust gases can flow to the outlet 5.
  • the partial streams 23 exiting from the catalytic tube 80 treated will mix with the partial streams 22 untreated exhaust gas entering via the connection opening 13 and pass as a mixed exhaust gas stream 50 from the outlet 5 into the outlet nozzle 26.
  • a flow tube 100 connecting the chambers 11 and 12 to one another is fastened to the intermediate wall 8, the flow tube lying approximately parallel to the intermediate wall.
  • the flow tube 100 is formed from two tube halves 77 and 78 and held between the partial walls 73 and 74.
  • One tube half 77 of flow tube 100 is formed in one piece with one partial wall 73 and the other tube half 78 is formed in one piece in the other partial wall 74.
  • the equally large partial walls 73 and 74 are congruent with one another, the flow tube 100 formed from the tube halves 77 and 78 lying approximately diagonally to the surface of the intermediate wall 8 in order to allow a maximum length of the flow tube 100.

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)
PCT/EP1999/005187 1998-08-01 1999-07-21 Abgasschalldämpfer mit einem katalysator Ceased WO2000008315A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000563924A JP2002522685A (ja) 1998-08-01 1999-07-21 排ガス消音器
US09/762,048 US6393835B1 (en) 1998-08-01 1999-07-21 Exhaust muffler comprising a catalytic converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19834822.3 1998-08-01
DE19834822A DE19834822A1 (de) 1998-08-01 1998-08-01 Abgasschalldämpfer mit einem Katalysator

Publications (2)

Publication Number Publication Date
WO2000008315A1 true WO2000008315A1 (de) 2000-02-17
WO2000008315A9 WO2000008315A9 (de) 2000-06-22

Family

ID=7876171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/005187 Ceased WO2000008315A1 (de) 1998-08-01 1999-07-21 Abgasschalldämpfer mit einem katalysator

Country Status (4)

Country Link
US (1) US6393835B1 (enExample)
JP (1) JP2002522685A (enExample)
DE (1) DE19834822A1 (enExample)
WO (1) WO2000008315A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002036942A1 (en) * 2000-11-03 2002-05-10 Aktiebolaget Electrolux Muffler for internal combustion engine

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DE10011023A1 (de) * 2000-03-07 2001-09-13 Wolfgang Riese Schalldämpfer für Kompressoren
DK1268989T3 (da) * 2000-03-21 2007-01-08 Silentor Holding As Dæmper indeholdende ét eller flere poröse legemer
DE10042145A1 (de) * 2000-08-26 2002-03-07 Stihl Maschf Andreas Abgasschalldämpfer für eine Brennkraftmaschine
US6684633B2 (en) * 2001-04-27 2004-02-03 Marion Barney Jett Exhaust device for two-stroke internal combustion engine
US6634257B2 (en) * 2002-01-15 2003-10-21 John W. Long Sharpening method and apparatus for rotary knives
US6837335B2 (en) * 2002-01-31 2005-01-04 Mtd Products Inc Replaceable catalyst for exhaust system
DE10239132B4 (de) * 2002-08-27 2012-11-15 Andreas Stihl Ag & Co Abgasschalldämpfer
US7574796B2 (en) 2002-10-28 2009-08-18 Geo2 Technologies, Inc. Nonwoven composites and related products and methods
US7572311B2 (en) 2002-10-28 2009-08-11 Geo2 Technologies, Inc. Highly porous mullite particulate filter substrate
US6946013B2 (en) 2002-10-28 2005-09-20 Geo2 Technologies, Inc. Ceramic exhaust filter
US7582270B2 (en) 2002-10-28 2009-09-01 Geo2 Technologies, Inc. Multi-functional substantially fibrous mullite filtration substrates and devices
DE20300769U1 (de) * 2003-01-17 2004-05-27 Dolmar Gmbh Abgasschalldämpfer
US20040245044A1 (en) * 2003-04-18 2004-12-09 Gabriella Cerrato-Jay Tuned muffler for small internal combustion engines
US8132646B2 (en) * 2003-08-06 2012-03-13 Andreas Stihl Ag & Co. Kg Exhaust gas muffler
DE10336175B4 (de) * 2003-08-07 2012-07-12 Andreas Stihl Ag & Co. Kg Abgasschalldämpfer
DE10339468B4 (de) * 2003-08-27 2008-11-13 Oberland Mangold Gmbh Katalysatorkörper und Abgasanlage für einen Kleinmotor sowie Verfahren zur Herstellung des Katalysatorkörpers
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JP4381868B2 (ja) * 2004-04-07 2009-12-09 本田技研工業株式会社 エンジン用排気浄化機能付き排気マフラ
JP4444730B2 (ja) * 2004-05-17 2010-03-31 川崎重工業株式会社 小型エンジンのマフラ
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DE102004054966A1 (de) * 2004-11-13 2006-05-18 Andreas Stihl Ag & Co. Kg Abgasschalldämpfer
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JP2013007317A (ja) * 2011-06-24 2013-01-10 Hitachi Koki Co Ltd エンジン作業機
JP6000168B2 (ja) * 2013-03-11 2016-09-28 本田技研工業株式会社 触媒コンバータ付きマフラ
JP6084487B2 (ja) * 2013-03-11 2017-02-22 本田技研工業株式会社 触媒コンバータ付きマフラ
JP6190603B2 (ja) * 2013-03-18 2017-08-30 株式会社マキタ マフラ装置および携帯型作業機
JP5960648B2 (ja) * 2013-06-10 2016-08-02 株式会社丸山製作所 携帯式エンジン用マフラー
WO2019104364A1 (de) 2017-12-01 2019-06-06 Avl List Gmbh Abgasnachbehandlungssystem
JP6759181B2 (ja) * 2017-12-19 2020-09-23 本田技研工業株式会社 マフラー装置
JP6806664B2 (ja) * 2017-12-19 2021-01-06 本田技研工業株式会社 マフラー装置
DE102018203066A1 (de) 2018-03-01 2019-09-05 Continental Automotive Gmbh Vorrichtung zur Abgasnachbehandlung
CN110118114B (zh) * 2019-02-28 2023-10-13 浙江亚特电器股份有限公司 一种四冲程汽油机链锯的消音器排气结构
CN114233453B (zh) * 2021-12-23 2025-01-24 浙江中马园林机器股份有限公司 一种触媒消音器及应用该触媒消音器的油锯
DE102022117206A1 (de) 2022-07-11 2024-01-11 Andreas Stihl Ag & Co. Kg Abgasschalldämpfer und Verbrennungsmotor mit einem Abgasschalldämpfer

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US6393835B1 (en) 2002-05-28
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DE19834822A1 (de) 2000-02-03

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