EP0733157B1 - Systeme d'echappement pour moteurs diesel - Google Patents

Systeme d'echappement pour moteurs diesel Download PDF

Info

Publication number
EP0733157B1
EP0733157B1 EP95903314A EP95903314A EP0733157B1 EP 0733157 B1 EP0733157 B1 EP 0733157B1 EP 95903314 A EP95903314 A EP 95903314A EP 95903314 A EP95903314 A EP 95903314A EP 0733157 B1 EP0733157 B1 EP 0733157B1
Authority
EP
European Patent Office
Prior art keywords
exhaust system
pipes
diesel engine
inner walls
soot
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 - Lifetime
Application number
EP95903314A
Other languages
German (de)
English (en)
Other versions
EP0733157A1 (fr
Inventor
Richard Bauder
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Publication of EP0733157A1 publication Critical patent/EP0733157A1/fr
Application granted granted Critical
Publication of EP0733157B1 publication Critical patent/EP0733157B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01N13/16—Selection of particular 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • 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
    • F01N13/02—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 silencers 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
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/08—Surface coverings for corrosion prevention
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to an exhaust system for a Diesel engine according to the generic term of claim 1.
  • the object of the invention is an exhaust system of the generic type Way of creating at little effort the particle accumulation considerably in part-load operation reduced and consequently the soot impact on the following Acceleration is significantly reduced.
  • This object is achieved in that at least the inner walls of the connecting pipes and the Pipes in the reflection silencer have a maximum roughness depth 1 ⁇ m.
  • the inner surface has a roughness depth that is only about 20% of Roughness depth of usual exhaust pipes is the particle accumulation significantly, by up to 60% will what a corresponding reduction in the soot surge has the consequence.
  • the low roughness depth is preferably due to a coating of the inner walls of the pipes e.g. B. by coating with aluminum, or by enamelling with a roughness of 0.5 ⁇ m can be.
  • the enamelling of the inner surfaces The tube has the further advantage that the inner surfaces the pipes are then electrically non-conductive, so that. no electrostatic charge can set the one Adhesion of particles could favor.
  • an exhaust system is schematically one Diesel engine 1 shown, at the exhaust manifold 2 a front pipe 3 is flanged, which with a Oxidation catalyst 4 is connected to the by a first intermediate tube 5 a reflection front silencer 6 is connected, which in turn by a second connecting pipe 7 with a main reflection silencer 8 connected is. This is followed by an end pipe 9.
  • the inner walls of the tubes 3, 5, 7 and 9 and the tubes 10, 11, 12 in the mufflers 6 and 8 have a maximum roughness of 1 ⁇ m, which is achieved in particular by an aluminum coating or enamelling.
  • Such pipes can be produced with only a small additional cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Silencers (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (3)

  1. Système d'échappement pour un moteur à combustion interne de type diesel (1), comportant un catalyseur (4) et au moins un silencieux à réflexion (6, 8), qui sont raccordés l'un à l'autre et au moteur à combustion interne par des tuyaux (3, 5, 7), caractérisé en ce qu'au moins les parois intérieures des tuyaux de raccordement (3, 5, 7) et les tuyaux (10, 11, 12), situés dans le silencieux à réflexion (6, 8), présentent une profondeur d'aspérité de 1 µm au maximum.
  2. Système d'échappement selon la revendication 1, caractérisé en ce que les parois intérieures des tuyaux sont pourvues d'un revêtement d'aluminium.
  3. Système d'échappement selon la revendication 1, caractérisé en ce que les parois intérieures des tuyaux sont émaillées.
EP95903314A 1993-12-09 1994-12-02 Systeme d'echappement pour moteurs diesel Expired - Lifetime EP0733157B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9318921U 1993-12-09
DE9318921U DE9318921U1 (de) 1993-12-09 1993-12-09 Auspuffanlage für eine Diesel-Brennkraftmaschine
PCT/EP1994/004014 WO1995016111A1 (fr) 1993-12-09 1994-12-02 Systeme d'echappement pour moteurs diesel

Publications (2)

Publication Number Publication Date
EP0733157A1 EP0733157A1 (fr) 1996-09-25
EP0733157B1 true EP0733157B1 (fr) 1998-06-17

Family

ID=6901775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903314A Expired - Lifetime EP0733157B1 (fr) 1993-12-09 1994-12-02 Systeme d'echappement pour moteurs diesel

Country Status (3)

Country Link
EP (1) EP0733157B1 (fr)
DE (2) DE9318921U1 (fr)
WO (1) WO1995016111A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009030429A1 (fr) 2007-08-28 2009-03-12 Chris Michalsky Système de gaz d'échappement pour véhicules automobiles équipés d'un moteur à combustion interne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742802B1 (fr) * 1995-12-20 1998-01-30 Lorraine Laminage Pot d'echappement de vehicule automobile
JP2001330394A (ja) * 2000-05-22 2001-11-30 Denso Corp 排気熱交換器
FR2811015B1 (fr) * 2000-06-30 2003-02-21 Ecia Equip Composants Ind Auto Volume d'echappement et dispositif d'echappement le comportant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT355878B (de) * 1975-05-30 1980-03-25 Vmw Ranshofen Berndorf Ag Auspuffanlage
DE2962334D1 (en) * 1978-07-07 1982-04-29 Reimbold & Strick Enamelled sound absorber and method for its enamelling
DE2917586C2 (de) * 1979-04-30 1982-11-18 Werner Dr.-Ing. 8450 Amberg Baumann Auspufftopf aus emailliertem Stahlblech
DE3015907A1 (de) * 1980-04-24 1981-10-29 Werner Dr.-Ing. 8450 Amberg Baumann Auspufftopf aus emailliertem stahlblech und verfahren zu seiner herstellung
DE3638807A1 (de) * 1986-11-17 1988-05-19 Westfalia Email Gusseisenabgaskruemmer fuer zylinderbrennkraftmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009030429A1 (fr) 2007-08-28 2009-03-12 Chris Michalsky Système de gaz d'échappement pour véhicules automobiles équipés d'un moteur à combustion interne

Also Published As

Publication number Publication date
DE59406293D1 (de) 1998-07-23
EP0733157A1 (fr) 1996-09-25
DE9318921U1 (de) 1994-02-03
WO1995016111A1 (fr) 1995-06-15

Similar Documents

Publication Publication Date Title
DE2949790C2 (de) Kolbenbrennkraftmaschine
EP1664519B1 (fr) Echangeur de chaleur de gaz d'echappement, notamment refroidisseur de gaz d'echappement pour le recyclage de gaz d'echappement dans des vehicules automobiles
EP0431405B1 (fr) Dispositif pour la purification catalytique des gaz d'échappement des moteurs à deux temps
EP0733157B1 (fr) Systeme d'echappement pour moteurs diesel
EP1099045B1 (fr) Dispositif et procede permettant de reduire les emissions sonores dans le cas de moteurs a combustion interne et de les diagnostiquer
EP1662109A1 (fr) Procédé de commande d'un moteur capable de fonctionner en mélange pauvre
DE19500781B4 (de) Abgasanlage für Verbrennungsmotoren
EP0470390B1 (fr) Système d'échappement pour moteur à combustion interne multicylindrique
DE3708696A1 (de) Schalldaempfer fuer verbrennungsmotoren
DE2613607A1 (de) Mehrzylindermotor-auspuffsystem mit zwei separaten auspuffleitungen
DE4431484A1 (de) Schalldämpfer mit integrierter Abgasreinigungsstufe
DE3314839C2 (de) Krümmer-Einrichtung
DE102019212763A1 (de) Zündkerze mit Strukturelementen an der Innenoberfläche der Vorkammer
DE2137960A1 (de) Abgasschalldaempfer fuer mehrzylindrige brennkraftmaschinen
DE3415075A1 (de) Abgaskatalysator
DE2733302A1 (de) Abgaskasten fuer mehrzylinder-brennkraftmaschinen, insbesondere fuer kraftfahrzeuge
DE2719615A1 (de) Ansaugleitungssystem einer mehrzylindrigen brennkraftmaschine
DE2627286A1 (de) Vorrichtung zur regelung einer mehrzylindrigen, grossvolumigen brennkraftmaschine
DE2946365A1 (de) Brennkraftmaschinen-auslasssystem, insbesondere ein auslasskruemmer fuer leistungssteigerung und schalldaempfung
DE3230136A1 (de) Luftansaugstrecke fuer die einer brennkraftmaschine zugefuehrte verbrennungsluft
DE102008048805A1 (de) Vorrichtung zum Reinigen von Abgasen
EP0125407B1 (fr) Moteur à combustion interne à quatre temps suralimenté par turbosoufflante à gaz d'échappement selon le principe de pression dynamique
DE102019122674A1 (de) Abgasanlage mit einer Abgasreinigungsvorrichtung für eine Brennkraftmaschine
DE102020118815A1 (de) Kraftfahrzeug
DE20101993U1 (de) Abgasanlage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960524

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19971125

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980619

REF Corresponds to:

Ref document number: 59406293

Country of ref document: DE

Date of ref document: 19980723

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041122

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20041215

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051202

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20131231

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59406293

Country of ref document: DE