EP1617050A1 - Silencieux pour système d'échappement - Google Patents

Silencieux pour système d'échappement Download PDF

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Publication number
EP1617050A1
EP1617050A1 EP05104275A EP05104275A EP1617050A1 EP 1617050 A1 EP1617050 A1 EP 1617050A1 EP 05104275 A EP05104275 A EP 05104275A EP 05104275 A EP05104275 A EP 05104275A EP 1617050 A1 EP1617050 A1 EP 1617050A1
Authority
EP
European Patent Office
Prior art keywords
muffler
silencer
silencer according
feed piece
probe
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.)
Granted
Application number
EP05104275A
Other languages
German (de)
English (en)
Other versions
EP1617050B1 (fr
Inventor
Holger Prommersberger
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH 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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1617050A1 publication Critical patent/EP1617050A1/fr
Application granted granted Critical
Publication of EP1617050B1 publication Critical patent/EP1617050B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 ; 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • F01N1/04—Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance 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
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised 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
    • 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
    • F01N13/18—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
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal

Definitions

  • the present invention relates to a muffler for an exhaust system and equipped with the muffler exhaust system.
  • the present invention is concerned with the problem of providing an improved embodiment for a muffler of the type mentioned, by which in particular a manufacturing cost can be reduced and at the same time the quality of a equipped with the muffler exhaust system can be increased.
  • the present invention is based on the general idea of assembling a muffler and a feed piece arranged upstream of the muffler from a common lower shell and a common upper shell.
  • the feed piece is Y-shaped and leads two exhaust-carrying lines together to form a single line entering the muffler. Due to the common lower or upper shell, a manufacturing effort can be reduced since a connection to be made between the silencer and the feed piece is eliminated.
  • the common upper or lower shell can each be formed from a single sheet metal, for example deep-drawn, whereby the hitherto separate production process for the respective lower shells and upper shells of the feed piece and the muffler can be brought together.
  • a probe for measuring exhaust gas-relevant parameters is arranged in a region of a crossing point of the two lines on the feed piece.
  • This cleverly chosen arrangement point offers the advantage that the probe of exhaust gases from both lines is preferably uniformly flowed through and thereby an exact detection of the mentioned parameters is made possible.
  • the exact detection of the exhaust gas-relevant parameters allows a targeted adaptation of an engine control and thus a high power output with particularly low pollutant emissions of the exhaust system and the engine.
  • the silencer preferably has a discharge line formed as a separate component.
  • This discharge line is slidably mounted in the muffler via at least one sliding seat.
  • the slidable storage offers the advantage that thermal expansions do not cause forced voltages, which could cause damage to the exhaust system and the muffler.
  • the sliding seat Through the sliding seat, the displacement of the discharge line is ensured relative to the muffler in the longitudinal direction of the discharge line, whereby usually occurring Temperature fluctuations during operation of the exhaust system can be easily compensated.
  • an absorber material is arranged between the discharge line and the upper and lower shell of the muffler.
  • the absorber material absorbs sound and thus dampens the acoustic emission of the exhaust system, whereby a reduced-emission operation of a motor vehicle equipped with the muffler is ensured.
  • the discharge line is at least in gas-permeable areas, for example perforated, formed, whereby a sound passage is facilitated by a wall of the discharge line.
  • the discharge line within the muffler is at least partially encased by a gas-permeable exhaust protection.
  • a gas-permeable exhaust protection Such Ausblasschutz prevented for example at a negative pressure in the muffler that absorber material passes through the gas-permeable wall of the discharge line and passes through the exhaust into the open.
  • the blow-off protection may comprise a net-like fabric made of steel wool, which is woven so finely that a passage of absorber material is prevented.
  • the blow-out protection which according to a particularly preferred embodiment can also have a chromium-steel sleeve, thus ensures the whereabouts of the absorber material between the blow-out protection and the upper or lower shell the muffler and thus the function of the muffler.
  • absorber material for example, glass wool can be provided.
  • the feed piece has at least one Strömungsleitkontur which causes a uniform mixing of exhaust gases flowing from the two lines and a targeted flow of the probe.
  • Strömungsleitkontur may, for example, baffles, which preferably homogeneously mixed the incoming from the two lines exhaust gases and the lying in the region of the intersection of the two lines probe, such as a NOX probe, supplies.
  • baffles which preferably homogeneously mixed the incoming from the two lines exhaust gases and the lying in the region of the intersection of the two lines probe, such as a NOX probe
  • an inventive silencer 1 for an otherwise not shown exhaust system such as an exhaust system for an internal combustion engine in a motor vehicle, a arranged upstream of the muffler 1 Y-shaped feed piece 2, which two exhaust-carrying lines 3, 4 into a single merges into the muffler 1 incoming line 5.
  • the two lines 3, 4 may be associated with two floods, which lead in two separate exhaust systems, the combustion exhaust gases of the engine to the common muffler 1.
  • the transition between the two exhaust pipes 3, 4 in the downstream following merged exhaust pipe 5 is streamlined, ie continuously.
  • Upstream of the feed piece 2 at least one not-shown de-NOX catalyst can be arranged, which is designed to reduce nitrogen oxides in exhaust gases.
  • both the Y-shaped feed piece 2 and the silencer 1 are assembled according to the invention from a common lower shell 6 and a common upper shell 7 (see FIG.
  • both the lower shell 6 and the upper shell 7 are preferably designed as shaped sheet metal parts, in particular as drawn or pressed sheet metal shaped parts. Due to the integral formation of each shell part 6, 7, on the one hand, a firm connection between the feed piece 2 and muffler 1 is achieved and, on the other hand, a subsequent mounting of the muffler 1 on the feed piece 2 can be dispensed with. In particular, the subsequent mounting on each other, such as screws or welding, requires an additional operation and thereby increases the cost of production.
  • the muffler 1 according to the invention only has to be welded along a longitudinal seam 8 during assembly, which also makes it possible to prevent problems with intersecting weld seams with resulting thermal forced voltages. Furthermore, the solution according to the invention offers the advantage of reducing a variety of parts by the respective common upper shell 7 or lower shell 6 of the muffler 1 and the intermediate piece 2, thereby saving storage and logistics costs.
  • the muffler for example, a center muffler, can be arranged on an underbody of a motor vehicle, not shown, and has a profiled surface with a plurality of ribs 9 for cooling. These are used to increase the surface and thus improve heat dissipation into the environment.
  • a probe 10 for measuring parameters relevant to exhaust gas is arranged on the feed piece 2.
  • the probe 10 may in this case be designed, for example, as a NOX probe and detect a nitrogen oxide content in the exhaust gas.
  • the feed piece 2 can have at least one flow guide contour 11 (compare FIG. 2), which permits a uniform mixing of exhaust gases flowing from the two lines 3, 4 and a targeted flow the probe 10 causes.
  • the Strömungsleitkontur 11 may have, for example, unspecified baffles or baffles, which are preferably already formed during pressing or deep drawing of the two shells 6, 7 with.
  • the silencer 1 has a discharge line 12 formed as a separate component, which is arranged downstream of the silencer 1 and forwards the exhaust gases to an outlet of the exhaust system into the open air.
  • the discharge line 12 is mounted in the muffler 1 via at least one sliding seat 13.
  • the sliding seat 13 causes a degree of freedom in the longitudinal direction of the discharge line 12, so that a relative displacement between the muffler 1 and discharge line 12 is easily possible.
  • the sliding seat 13 according to FIG. 2 is arranged on the input side of the muffler 1 or on the output side or on the input and output side.
  • a region of the discharge line 12 projecting into the latter is designed to be gas-permeable, for example perforated, and surrounded by an absorber material 14, which is arranged between an outer shell 15 of the muffler 1 and the discharge line 12.
  • absorber material 14 for example, glass wool or other insulating materials come into question.
  • the discharge line 12 is encased within the muffler 1 at least partially by a gas-permeable exhaust protection 16, in particular in the case of very fine absorber materials 14.
  • the blow-off protection 16 may comprise, for example, a chrome steel sleeve or a net-like fabric and prevents a passage of absorber material 14 into the discharge line 12.
  • Material for the net-like fabric may be steel wool, for example.
  • the invention provides, in a muffler 1 for an exhaust system with a arranged upstream of the muffler 1 Y-shaped feed piece 2 and assemble the muffler 1 from a common lower shell 6 and a common upper shell 7.
  • the variety of parts is reduced while creating a solid and stable connection between the muffler 1 and the feed piece 2.

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 Silencers (AREA)
  • Sampling And Sample Adjustment (AREA)
EP05104275A 2004-07-14 2005-05-19 Silencieux pour système d'échappement Not-in-force EP1617050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004034206A DE102004034206B4 (de) 2004-07-14 2004-07-14 Schalldämpfer für eine Abgasanlage

Publications (2)

Publication Number Publication Date
EP1617050A1 true EP1617050A1 (fr) 2006-01-18
EP1617050B1 EP1617050B1 (fr) 2007-05-09

Family

ID=35058838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05104275A Not-in-force EP1617050B1 (fr) 2004-07-14 2005-05-19 Silencieux pour système d'échappement

Country Status (4)

Country Link
US (1) US7861824B2 (fr)
EP (1) EP1617050B1 (fr)
AT (1) ATE362040T1 (fr)
DE (2) DE102004034206B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018229371A1 (fr) * 2017-06-14 2018-12-20 Psa Automobiles Sa Ligne d'echappement de gaz de combustion avec haut-parleur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10363902B2 (en) * 2013-07-22 2019-07-30 Trw Automotive U.S. Llc Anti-theft remote keyless entry system using frequency hopping with amplitude level control

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JPS6095119A (ja) * 1983-10-31 1985-05-28 Yamaha Motor Co Ltd 自動二輪車の排気装置
US4621494A (en) * 1983-08-31 1986-11-11 Nissan Motor Co., Ltd. Automotive engine exhaust system
US5148597A (en) * 1990-08-27 1992-09-22 Tennessee Gas Pipeline Company Method of making a collector device

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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206178A (en) * 1978-04-08 1980-06-03 Fuji Jukogyo Kabushiki Kaisha Apparatus for purifying exhaust gases of internal combustion engines
US4621494A (en) * 1983-08-31 1986-11-11 Nissan Motor Co., Ltd. Automotive engine exhaust system
JPS6095119A (ja) * 1983-10-31 1985-05-28 Yamaha Motor Co Ltd 自動二輪車の排気装置
US5148597A (en) * 1990-08-27 1992-09-22 Tennessee Gas Pipeline Company Method of making a collector device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018229371A1 (fr) * 2017-06-14 2018-12-20 Psa Automobiles Sa Ligne d'echappement de gaz de combustion avec haut-parleur
FR3067752A1 (fr) * 2017-06-14 2018-12-21 Peugeot Citroen Automobiles Sa Ligne d’echappement de gaz de combustion avec haut-parleur

Also Published As

Publication number Publication date
DE102004034206B4 (de) 2007-02-22
ATE362040T1 (de) 2007-06-15
DE102004034206A1 (de) 2006-02-09
US20060011410A1 (en) 2006-01-19
DE502005000685D1 (de) 2007-06-21
EP1617050B1 (fr) 2007-05-09
US7861824B2 (en) 2011-01-04

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