EP0974001B1 - Dispositif d'echappement pour moteur a combustion interne et son procede de fabrication - Google Patents
Dispositif d'echappement pour moteur a combustion interne et son procede de fabrication Download PDFInfo
- Publication number
- EP0974001B1 EP0974001B1 EP98920605A EP98920605A EP0974001B1 EP 0974001 B1 EP0974001 B1 EP 0974001B1 EP 98920605 A EP98920605 A EP 98920605A EP 98920605 A EP98920605 A EP 98920605A EP 0974001 B1 EP0974001 B1 EP 0974001B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust
- housing
- wall
- internal combustion
- pipe element
- 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.)
- Revoked
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
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
- B21C37/298—Forming collars by flow-drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/063—Friction heat forging
- B21J5/066—Flow drilling
-
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/02—Corrosion resistive metals
- F01N2530/04—Steel alloys, e.g. stainless steel
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49398—Muffler, manifold or exhaust pipe making
Definitions
- the subject of the present invention is a exhaust system for combustion engine internal and its production process.
- the current invention relates more particularly to a conduit exhaust having a suitable housing for the mounting of a measurement probe and the method of realization of such housing.
- the measurement probes coming equip the exhaust line are screwed in threaded housings crossing the wall of exhaust pipes, so as to bring the analysis cells in contact with the gas flow exhaust.
- the tapped holes are conventionally formed by appropriate rings which are reported by welding in openings made through the exhaust pipes (SEFG welding or welding by resistance).
- the subject of the present invention is therefore a exhaust pipe with a tapped hole to house a probe used to analyze the gas composition, this hole being made directly through the very wall of the duct without welded attached threaded ring.
- the exhaust system for internal combustion comprises a conduit element inside which flow exhaust gases, this duct element comprising a housing allowing the mounting of a measurement sensor such as an oxygen sensor.
- the device exhaust is characterized in that the housing intended for mounting the probe is formed by a hole extended by a socket made directly through the wall of the conduit element.
- the conduit element where the extended hole is formed through a socket has a thick wall substantially uniform between 1 and 3 mm.
- the duct element where the hole extended by a socket is formed is made of stainless metal alloy.
- the present invention also relates to a method of producing such a housing.
- the housing produced through the same wall of the duct element is obtained from a first drilling operation consisting of drilling through the wall with a tool, a speed and a penetration force adapted to cause the fusion and the discharge of the material around the tool as the latter advances until a bush of required height and diameter is obtained.
- the tool used for the drilling operation is constituted by an ogival mandrel.
- the first flow drilling operation is then followed by a second tapping operation by deformation.
- a exhaust pipe element referenced 1 equipping an exhaust line with a internal combustion mounted for example on a motor vehicle.
- This conduit which is formed by a simple stainless steel alloy tube of thin (conventional steel or coated steel aluminum), between 1 and 3 mm, and which is intended, for example, to extend into the collector exhaust and catalytic converter not shown, has a housing 2 for a measurement probe 3 such as a lambda oxygen sensor.
- Housing 2 is made directly at through the very wall of the tube, thanks to the process described in accordance with Figures 2 and 3.
- the first operation consists in operating by drilling a hole 21 extended by a socket 22.
- This hole 21 and this socket 22 are obtained by the perforation of the wall of the tube by a mandrel or ogival punch 4, for example in tungsten carbide, turning at high speed, at over 500 rpm and preferably between 3000 and 5000 rpm, and pressed in the tube with a certain force of penetration.
- the rapidly rotating tip contact locally causes a sharp rise in temperature which brings the metal to the plastic state.
- the push exerted by the punch by the system in advance makes it gradually penetrate the hole thus outlined by pushing the material around from him.
- Metal flowing in the direction of advance forms a collar and in reverse a bead.
- a collar 41 located at the part upper punch can fold metal full of the outside of the tube and give it a flat surface facilitating support and sealing of probe 3.
- this threadless tapping operation consists in obtaining the net by deformation of the sleeve material 22.
- a tool 5 having a screw-like active surface is used as a tap.
- the tap operates by rolling by deforming the material of the sleeve, the profile of the net 23 is then printed by moving the material from the bottom of the net to the crest.
- Speed of rotation and the penetration force of the tap are adapted to produce the desired resistance nets. You can choose a rotation speed tap preferably between 700 and 1500 rpm, this is not however limiting of the present invention.
- the present invention has the added benefit of being more economical and simpler to implement.
- the present invention is not limited to only making a tapped hole for housing an oxygen sensor but can apply to the realization of all holes tapped on the exhaust line of a internal combustion engine required for setting in place of the various sensors or probes required for engine control and / or diagnostic of the or means for treating the gases burned by catalytic conversion fitted to the line exhaust.
- the present invention also applies to exhaust pipes comprising several concentric walls. In this case, the tapped hole necessary for the mounting of the sensor by operating the flow drilling at through the different walls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Description
La présente invention concerne également un procédé de réalisation d'un tel logement. Selon l'invention le logement réalisé à travers la paroi même de l'élément de conduit est obtenu à partir d'une première opération de fluoperçage consistant à forer à travers la paroi avec un outil, une vitesse et une force de pénétration adaptées pour provoquer la fusion et le refoulement du matériau autour de l'outil au fur et à mesure de l'avancement de ce dernier jusqu'à obtenir une douille de hauteur et de diamètre requis.
Claims (3)
- Dispositif d'échappement pour moteur à combustion interne comportant un élément de conduit (1) à l'intérieur duquel s'écoulent les gaz d'échappement, ledit élément de conduit (1) comportant un logement (2) permettant le montage d'un capteur de mesure telle qu'une sonde à oxygène, caractérisé en ce que ledit logement (2) est formé par un trou prolongé par une douille (22) réalisée directement à partir de la matière constituant la paroi dudit élément de conduit (1) le logement (2), comprenant un taraudage obtenu par déformation et un bourrelet sur le bord du trou, le bourrelet étant réalisé directement à partir de la matière constituant la paroi.
- Dispositif d'échappement selon la revendication 1, caractérisé en ce que ledit élément de conduit (1) présente une paroi d'épaisseur sensiblement uniforme comprise entre 1 et 3 mm.
- Dispositif d'échappement selon l'une quelconque des revendications 1 à 2, caractérisé en ce que ledit élément de conduit (1) présente une paroi réalisée en alliage métallique inoxydable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9704411A FR2762045B1 (fr) | 1997-04-10 | 1997-04-10 | Dispositif d'echappement pour moteur a combustion interne et son procede de fabrication |
| FR9704411 | 1997-04-10 | ||
| PCT/FR1998/000728 WO1998045584A1 (fr) | 1997-04-10 | 1998-04-10 | Dispositif d'echappement pour moteur a combustion interne et son procede de fabrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0974001A1 EP0974001A1 (fr) | 2000-01-26 |
| EP0974001B1 true EP0974001B1 (fr) | 2004-06-02 |
Family
ID=9505743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98920605A Revoked EP0974001B1 (fr) | 1997-04-10 | 1998-04-10 | Dispositif d'echappement pour moteur a combustion interne et son procede de fabrication |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6848438B2 (fr) |
| EP (1) | EP0974001B1 (fr) |
| JP (2) | JP2001519004A (fr) |
| DE (1) | DE69824285T2 (fr) |
| ES (1) | ES2217553T3 (fr) |
| FR (1) | FR2762045B1 (fr) |
| WO (1) | WO1998045584A1 (fr) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE276844T1 (de) * | 2000-12-28 | 2004-10-15 | Wimetal S A Sa | Vorrichtung und verfahren zur herstellung von anschlussstutzen in einer abgasanlage |
| US7279140B2 (en) | 2001-07-12 | 2007-10-09 | Delphi Technologies, Inc. | Catalytic converter with integral oxygen sensor |
| US8110152B2 (en) * | 2001-07-12 | 2012-02-07 | Katcon Global S.A. | Gas sensor mounting boss and method of making |
| JP2003294674A (ja) * | 2002-04-04 | 2003-10-15 | Honda Motor Co Ltd | ガスセンサの取付構造 |
| FR2877864B1 (fr) * | 2004-11-16 | 2008-02-01 | Renault Sas | Fixation de tole par fluo taraude a embase conique |
| US7765801B2 (en) * | 2005-11-30 | 2010-08-03 | Benteler Automotive Corporation | Exhaust gas treatment device with insulated housing construction |
| EP2148057B1 (fr) * | 2008-07-04 | 2011-09-07 | Ford Global Technologies, LLC | Système de convertisseur catalytique |
| US8839746B2 (en) * | 2010-10-29 | 2014-09-23 | Utc Fire & Security Corporation | Oxygen measuring apparatuses |
| DE102011018748B3 (de) * | 2011-04-27 | 2012-07-26 | Audi Ag | Verfahren zum Herstellen von Anschlussbuchsen und zugehöriges Bauteil |
| DE102011108424B4 (de) * | 2011-07-26 | 2015-11-05 | Daimler Ag | Herstellen einer Bohrung in einem Bauteil aus einer porösen Legierung und Bauteil |
| US9057315B2 (en) | 2013-07-08 | 2015-06-16 | Honda Motor Co., Ltd. | Oxygen sensor heat sinking boss |
| FR3017316B1 (fr) * | 2014-02-07 | 2016-04-01 | Bollhoff Otalu Sa | Procede d'assemblage d'un insert sur un support |
| DE102015121110A1 (de) * | 2015-12-04 | 2017-06-08 | Eberspächer Exhaust Technology GmbH & Co. KG | Verfahren zur Herstellung einer Katalysatorgehäuseanordnung mit wenigstens einem Sensorträger für eine Abgasanlage eines Fahrzeugs |
| DE102018104244A1 (de) * | 2018-02-26 | 2019-08-29 | Eberspächer Exhaust Technology GmbH & Co. KG | Abgasanlage |
| US11577331B2 (en) * | 2020-12-28 | 2023-02-14 | Gm Global Technology Operatins Llc | Methods of manufacturing part with hole having cut threads |
| AT523740B1 (de) * | 2021-02-11 | 2021-11-15 | Blum Gmbh Julius | Möbelbeschlag und Verfahren zur Herstellung eines Möbelbeschlages |
| DE102021207261A1 (de) | 2021-07-09 | 2023-01-12 | Siemens Mobility GmbH | Verfahren zum Anbringen einer Messeinrichtung an einem Rohr |
| CN115815416B (zh) * | 2023-01-20 | 2023-04-14 | 山东卓益数控设备有限公司 | 一种数控加工用扩孔装置 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1906953A (en) * | 1929-02-20 | 1933-05-02 | Winford L Enghauser | Method of forming manifolds |
| US2991551A (en) * | 1958-11-17 | 1961-07-11 | Production Plating Works Inc | Method and apparatus for forming holes in pipes |
| US3429171A (en) * | 1965-10-21 | 1969-02-25 | Joseph J Feher | Radius spin drill |
| DE2202614A1 (de) | 1972-01-20 | 1973-08-02 | Bosch Gmbh Robert | Abgasnachverbrennungseinrichtung |
| NL160499B (nl) * | 1974-11-28 | 1979-06-15 | Geffen Tech Adviesbureau Bv | Doorn voor het maken van een door een kraag omgeven gat in een metalen plaat of wand van een metalen buis. |
| JPS52121503U (fr) * | 1976-03-15 | 1977-09-16 | ||
| NL7700872A (nl) * | 1977-01-27 | 1978-07-31 | Geffen Tech Adviesbureau Bv | Draaibare doorn voor het maken van een door een kraag omgeven gat in een metalen plaat of in de wand van een metalen buis. |
| NL7712700A (nl) * | 1977-11-17 | 1979-05-21 | Geffen Tech Adviesbureau Bv | Draaibare doorn voor het maken van kraaggaten. |
| JPS55100842A (en) * | 1979-01-27 | 1980-08-01 | Yamaha Motor Co Ltd | Perforating tool |
| DE2937802C2 (de) * | 1979-09-19 | 1987-02-19 | Degussa Ag, 6000 Frankfurt | Verbesserte Sonde zur Messung des Sauerstoffgehalts im Abgas von Verbrennungskraftmaschinen |
| DE3023337A1 (de) * | 1980-06-21 | 1982-01-14 | Bosch Gmbh Robert | Elektrochemischer messfuehler fuer die bestimmung des sauerstoffgehaltes in gasen, insbesondere in abgasen von brennkraftmaschinen |
| US4428214A (en) * | 1982-02-08 | 1984-01-31 | Deere & Company | Flow drilling process and tool therefor |
| DE3409045C1 (de) * | 1984-03-13 | 1985-10-17 | Daimler Benz Ag | Messfuehleranordnung in einem Abgasrohr fuer Verbrennungsmotoren |
| US4526672A (en) * | 1984-03-23 | 1985-07-02 | Axia Incorporated | Oxygen sensor |
| FR2586753A1 (fr) * | 1985-09-04 | 1987-03-06 | Peugeot Cycles | Dispositif de controle des gaz d'echappement d'un moteur a combustion interne |
| GB2227536A (en) * | 1988-11-22 | 1990-08-01 | Stott Benham Limited | Gas distribution tube |
| US5331810A (en) * | 1992-05-21 | 1994-07-26 | Arvin Industries, Inc. | Low thermal capacitance exhaust system for an internal combustion engine |
| DE4224131A1 (de) * | 1992-07-22 | 1994-01-27 | Stabilus Gmbh | Verfahren zur Herstellung eines Anschlußstutzens |
| DE4318107A1 (de) * | 1993-06-01 | 1994-12-08 | Bosch Gmbh Robert | Meßfühleranordnung in einer Gasleitung |
| JPH08246863A (ja) * | 1995-01-13 | 1996-09-24 | Toyota Motor Corp | 内燃機関の排気管 |
| US5984138A (en) * | 1995-05-31 | 1999-11-16 | Dana Corporation | Tanks with flow drill bushings for receiving couplings |
| US5571397A (en) * | 1995-07-05 | 1996-11-05 | Ford Motor Company | Boron nitride exhaust seal |
-
1997
- 1997-04-10 FR FR9704411A patent/FR2762045B1/fr not_active Expired - Fee Related
-
1998
- 1998-04-10 WO PCT/FR1998/000728 patent/WO1998045584A1/fr not_active Ceased
- 1998-04-10 EP EP98920605A patent/EP0974001B1/fr not_active Revoked
- 1998-04-10 US US09/402,472 patent/US6848438B2/en not_active Expired - Fee Related
- 1998-04-10 DE DE69824285T patent/DE69824285T2/de not_active Revoked
- 1998-04-10 ES ES98920605T patent/ES2217553T3/es not_active Expired - Lifetime
- 1998-04-10 JP JP54246998A patent/JP2001519004A/ja not_active Withdrawn
-
2008
- 2008-06-18 JP JP2008158880A patent/JP2008274959A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20010025419A1 (en) | 2001-10-04 |
| WO1998045584A1 (fr) | 1998-10-15 |
| JP2008274959A (ja) | 2008-11-13 |
| FR2762045B1 (fr) | 1999-06-04 |
| US6848438B2 (en) | 2005-02-01 |
| FR2762045A1 (fr) | 1998-10-16 |
| ES2217553T3 (es) | 2004-11-01 |
| JP2001519004A (ja) | 2001-10-16 |
| EP0974001A1 (fr) | 2000-01-26 |
| DE69824285D1 (de) | 2004-07-08 |
| DE69824285T2 (de) | 2005-06-02 |
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