EP1384867A1 - Dispositif d'étanchéification d'un conduite des gaz d'échappement - Google Patents

Dispositif d'étanchéification d'un conduite des gaz d'échappement Download PDF

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Publication number
EP1384867A1
EP1384867A1 EP03014910A EP03014910A EP1384867A1 EP 1384867 A1 EP1384867 A1 EP 1384867A1 EP 03014910 A EP03014910 A EP 03014910A EP 03014910 A EP03014910 A EP 03014910A EP 1384867 A1 EP1384867 A1 EP 1384867A1
Authority
EP
European Patent Office
Prior art keywords
pipe
exhaust gas
gas recirculation
pipe part
ring seal
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
EP03014910A
Other languages
German (de)
English (en)
Other versions
EP1384867B1 (fr
Inventor
Axel LÖFFLER
Karl-Heinz Metzger
Stephan Tafel
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 AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1384867A1 publication Critical patent/EP1384867A1/fr
Application granted granted Critical
Publication of EP1384867B1 publication Critical patent/EP1384867B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F01N13/1838—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
    • F01N13/14—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 thermal insulation
    • 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
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • 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
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/18—Thermal insulation or heat protection
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10268—Heating, cooling or thermal insulating means
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers

Definitions

  • the invention relates to a device for sealing a pipe part of an exhaust gas recirculation line with one in one Wall part of an exhaust gas recirculation pipe recorded sleeve, the first with the pipe part firmly connected, at least in front portion has cylindrically shaped pipe part, which is followed by a second larger diameter pipe section, that in the area of its end a second cylindrical Pipe part having, as a contact surface for a ring seal serves, which is accommodated in a flange.
  • the invention has for its object to provide the device for Form sealing of a pipe part of an exhaust pipe in such a way and to arrange that at the same time good sealing effect and high stability of the sealing material, the pipe part is in can be assembled flawlessly for a very short time.
  • the object is achieved according to the invention that between the first and second tube part a conically widening Clamping part is provided, by means of which the exhaust gas recirculation pipe part can be clamped in the first tube part and thereby can be applied against the ring seal.
  • This will be without additional Screw connection between the exhaust gas recirculation pipe and the mixing housing created a perfect clamping connection and completely dispensed with additional screw elements.
  • a conically expanding sleeve is provided, you get a gentle Sealing, because of the simple cooling between sleeve and exhaust gas recirculation pipe overheating of the ring seal avoided becomes.
  • an angle ⁇ included is between 7 ° and 15 °, especially between 8 ° and 12 °, is large.
  • the exhaust gas recirculation pipe part in a pipe socket provided in a mixing housing can be clamped, which has a bore with a cylindrical recess and an adjoining conical part, whose Side part includes an angle with the central axis, the same, slightly smaller or slightly larger than the angle ⁇ is.
  • Solution is finally provided, that is in the Mischgebiruse extending pipe socket is curved such that its outlet opening in the flow direction of the fresh air extends.
  • 1 shows an exhaust gas recirculation pipe, the detachably connected via a clamping connection with a mixing tube 7 is.
  • the mixing tube 7, as a pipe part in the drawing in section is shown schematically, has a cylindrical wall part 7.1, 7.2 up.
  • the wall part 7.2 is a cylindrical trained pipe socket with an annular groove for receiving a Sealing ring or a pipe ring shown.
  • the pipe socket 17 consists of a first part, called a cylindrical recess 20 is formed, to which a conically widening Part 21 connects.
  • the part 21 is also used as a clamping part referred to, for receiving a likewise similarly trained Sleeve 4 is used.
  • the sleeve 4 consists of a first cylindrically shaped Pipe part 6, whose inner diameter is approximately the outer diameter the front pipe socket 2.1 of the exhaust gas recirculation pipe part 2 corresponds.
  • the cylindrical part 6 of the sleeve 4 is followed conically widening part 10 and to the part 10 again a cylindrical pipe part 11 having an inlet opening is provided.
  • the tube part 11 corresponds with its outer diameter in about the inner diameter of the pipe socket 17, in the embedded in its groove a ring seal or O-ring seal 5 is.
  • the angle ⁇ can be between 7 ° and 15 °, in an advantageous Way between 8 ° and 12 °, preferably 10 ° to be large very good frictional connection between the connected To ensure sharing.
  • the inner diameter corresponds the conically widening part 21 of the neck 17 in about the outer diameter of the conical tube part or clamping part 10.
  • the sleeve 4 is thus with their two Surfaces of the part 11 and the part 10 against the inner surfaces of Part 20 and 21. Since the sleeve 4 and the part 11th a gap between the surface of the exhaust gas recirculation pipe part 2 forms, you get automatically a good cooling, so that overheating of the sleeve 4 and thus the annular seal. 5 is avoided.
  • the front end or the outlet opening 2.2 of the exhaust gas recirculation pipe part 2 beveled at an angle ⁇ .
  • a part of the exhaust gas according to Case 3 almost lossless in the main flow of fresh air according to Part 18 introduced into the mixing housing 7.
  • Another improvement is achieved by the front end 2.2 so far angled or curved, that the longitudinal center axis of the Pipe part 2 approximately parallel to the longitudinal central axis of the mixing housing 7 is running. This gives a laminar inflow of Exhaust gas in the fresh air of the mixing housing. 7
  • a part of the exhaust gas recirculation housing 2 additionally secured by a holder 12 become.
  • the holder 12 with a U-shaped Holder part 14 which is the outer periphery of the exhaust gas recirculation pipe part 2 partially surrounds.
  • the other or second end of the holder 12 is by means of a fastening bolt, not shown in the drawing connected to a bore 13, which has a Tab 13.1 is connected to the wall part 7.2.
  • the angle ⁇ shown in the drawing can also be so be big like the angle ⁇ .
  • the Angle ⁇ in about 15 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP03014910A 2002-07-23 2003-07-01 Dispositif d'étanchéification d'un conduite des gaz d'échappement Expired - Fee Related EP1384867B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233361 2002-07-23
DE10233361A DE10233361A1 (de) 2002-07-23 2002-07-23 Vorrichtung zum Abdichten einer Abgasrohrleitung

Publications (2)

Publication Number Publication Date
EP1384867A1 true EP1384867A1 (fr) 2004-01-28
EP1384867B1 EP1384867B1 (fr) 2005-01-26

Family

ID=29796515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03014910A Expired - Fee Related EP1384867B1 (fr) 2002-07-23 2003-07-01 Dispositif d'étanchéification d'un conduite des gaz d'échappement

Country Status (2)

Country Link
EP (1) EP1384867B1 (fr)
DE (2) DE10233361A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009093993A1 (fr) 2008-01-24 2009-07-30 Mack Trucks, Inc. Dispositif mélangeur de recyclage de gaz d’échappement
CN101598079A (zh) * 2009-07-21 2009-12-09 重庆隆鑫机车有限公司 摩托车发动机
JP2010255581A (ja) * 2009-04-28 2010-11-11 Hino Motors Ltd Ｅｇｒガス混合装置
CN102392726A (zh) * 2011-11-30 2012-03-28 重庆长安汽车股份有限公司 一种纵置发动机排气歧管加强构件
FR3001262A1 (fr) * 2013-01-23 2014-07-25 Renault Sa "agencement pour le raccordement d'une conduite de recirculation de gaz d'echappement avec un circuit d'admission de moteur a combustion interne"
FR3022945A1 (fr) * 2014-06-25 2016-01-01 Valeo Systemes Thermiques Systeme de recirculation de gaz d'echappement.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433183A (en) * 1993-06-25 1995-07-18 Solvay (Societe Anonyme) Connection system for connecting a pipe carrying a hot fluid to a plastic member and its use in an internal combustion engine
US5492104A (en) * 1994-11-03 1996-02-20 General Motors Corporation Exhaust gas recirculation for an internal combustion engine
JPH0968118A (ja) * 1995-08-29 1997-03-11 Mitsubishi Eng Plast Kk 樹脂製吸気マニホールド用の排気ガス再循環装置
GB2324338A (en) * 1996-09-18 1998-10-21 Nissan Motor A plastic intake manifold for an ic engine with a variable diameter opening and spacing collar for receiving an EGR pipe.
EP1182344A2 (fr) * 2000-08-25 2002-02-27 Filterwerk Mann + Hummel Gmbh Dispositif de recyclage de gaz pour un moteur à combustion interne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5433183A (en) * 1993-06-25 1995-07-18 Solvay (Societe Anonyme) Connection system for connecting a pipe carrying a hot fluid to a plastic member and its use in an internal combustion engine
US5492104A (en) * 1994-11-03 1996-02-20 General Motors Corporation Exhaust gas recirculation for an internal combustion engine
JPH0968118A (ja) * 1995-08-29 1997-03-11 Mitsubishi Eng Plast Kk 樹脂製吸気マニホールド用の排気ガス再循環装置
GB2324338A (en) * 1996-09-18 1998-10-21 Nissan Motor A plastic intake manifold for an ic engine with a variable diameter opening and spacing collar for receiving an EGR pipe.
EP1182344A2 (fr) * 2000-08-25 2002-02-27 Filterwerk Mann + Hummel Gmbh Dispositif de recyclage de gaz pour un moteur à combustion interne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009093993A1 (fr) 2008-01-24 2009-07-30 Mack Trucks, Inc. Dispositif mélangeur de recyclage de gaz d’échappement
JP2011519397A (ja) * 2008-01-24 2011-07-07 マック トラックス インコーポレイテッド 排気ガス再循環混合装置
EP2245284A4 (fr) * 2008-01-24 2015-08-12 Mack Trucks Dispositif mélangeur de recyclage de gaz d'échappement
US9488098B2 (en) 2008-01-24 2016-11-08 Mack Trucks, Inc. Exhaust gas recirculation mixer device
JP2010255581A (ja) * 2009-04-28 2010-11-11 Hino Motors Ltd Ｅｇｒガス混合装置
CN101598079A (zh) * 2009-07-21 2009-12-09 重庆隆鑫机车有限公司 摩托车发动机
CN102392726A (zh) * 2011-11-30 2012-03-28 重庆长安汽车股份有限公司 一种纵置发动机排气歧管加强构件
FR3001262A1 (fr) * 2013-01-23 2014-07-25 Renault Sa "agencement pour le raccordement d'une conduite de recirculation de gaz d'echappement avec un circuit d'admission de moteur a combustion interne"
WO2014114865A1 (fr) * 2013-01-23 2014-07-31 Renault S.A.S Agencement pour le raccordement d'une conduite de recirculation de gaz d'echappement avec un circuit d'admission de moteur a combustion interne
FR3022945A1 (fr) * 2014-06-25 2016-01-01 Valeo Systemes Thermiques Systeme de recirculation de gaz d'echappement.
EP2960482A3 (fr) * 2014-06-25 2016-01-27 Valeo Systemes Thermiques Système de recirculation de gaz d'échappement

Also Published As

Publication number Publication date
DE10233361A1 (de) 2004-02-05
DE50300274D1 (de) 2005-03-03
EP1384867B1 (fr) 2005-01-26

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