WO2004041459A1 - Procede de fabrication d'une enveloppe de silencieux ou de catalyseur. - Google Patents
Procede de fabrication d'une enveloppe de silencieux ou de catalyseur. Download PDFInfo
- Publication number
- WO2004041459A1 WO2004041459A1 PCT/FR2003/050114 FR0350114W WO2004041459A1 WO 2004041459 A1 WO2004041459 A1 WO 2004041459A1 FR 0350114 W FR0350114 W FR 0350114W WO 2004041459 A1 WO2004041459 A1 WO 2004041459A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- carried out
- piece
- closed
- flow
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Definitions
- PROCESS FOR MANUFACTURING A MUFFLER OR CATALYST ENCLOSURE PROCESS FOR MANUFACTURING A MUFFLER OR CATALYST ENCLOSURE.
- the invention relates to a method of manufacturing a silencer or catalyst casing, which comprises at at least one of its ends at least one connection end piece having a smaller section than said casing and allowing the integration of this last in a motor vehicle exhaust line.
- the present invention will therefore find its application in the field of manufacturing by forming a tube, intended for use in the automotive sector, in particular to serve as the outer casing of a silencer or a catalytic converter entering the composition of an exhaust line.
- this envelope results, for example, from the stamping of two half-shells which are just assembled by welding at the height of a joint plane, or from the welding of two cones on the ends of a section of tube.
- the luotournage solution not only leads to products with a lower cost price, since they require less manufacturing time, but also more resistant.
- connection nozzle at the inlet cone or that of the cone outlet must very often have a different orientation relative to that of the axis of the envelope.
- the pivot axis given to the envelope is determined according to the desired result. However, it turns out that despite the multiple relative mobilities of the envelope relative to the flow-forming tool, it is not possible to obtain a silencer or catalyst envelope which can be suitable for all situations of installation of a motor vehicle exhaust line.
- this axis of said connection endpiece cannot be intersecting on the horizontal plane of the axis of the envelope.
- connection end piece whose axis presents with the general axis of the tube from which it comes, a greater angle at 30 °.
- the present invention is intended to provide a solution to this problem, in particular to the difficulties which may be encountered through currently known solutions for orienting, suitably, the nozzle emerging from an inlet cone or exit in all directions relative to the axis of the envelope.
- the invention also makes it possible to reduce, even more, the mechanically welded fabrications which, as has exposed above, do not bring satisfaction for various reasons.
- the subject of the invention is a method of manufacturing a silencer or catalyst casing comprising at at least one of its ends at least one connecting end piece of smaller cross section for its integration into a line of motor vehicle exhaust, characterized in that, starting from a tube, more particularly of cylindrical shape, the latter is closed at said end, in particular by turning or by deep drawing, and said end piece is produced by perforation and drawing connection at or near this closed end of said tube.
- the other end of said tube after closing one end of the tube and making the connection end piece, the other end of said tube can be closed by fluorescent or other means, if necessary. after introduction of a catalyst body or of the components of a silencer, and it is possible, by perforation and drawing, at least one other connecting piece at this other closed end of said tube.
- said stretching is carried out by proceeding from the interior of said tube.
- said stretching is carried out by proceeding from the outside of said tube.
- the present process is also characterized in that for the closure of at least one of the ends of said tube, one proceeds by flow spinning.
- this flow forming operation is carried out hot.
- this flow-forming operation is preferably carried out by heating by induction.
- the stretching operation is carried out using an expandable rotary mandrel introduced into said tube after perforation.
- the said method also provides that at the other end of the said tube, a cone opening out by flow turning is produced through a connecting piece of smaller cross section.
- connection end piece whose axis has an angle of unlimited value with the axis of the tube, it is possible to adapt its orientation relative to the constraints encountered, and to design casings of catalysts or silencers for motor vehicles capable of integrating perfectly into an exhaust line, without requiring the use of a mechanized welding process, as is currently the case.
- FIG. 1 corresponds to a schematic perspective view of a silencer or catalyst casing as obtained by the implementation of the present process
- Figures 2 to 5 show different modes of implementation of the successive stages of the present method.
- the present invention relates to a method of manufacturing casings 1 for catalysts or silencers for motor vehicles, by means of which it is possible to form connection end pieces going in the appropriate direction for perfect integration into an exhaust line, without there are no conformation limitations as is generally the case with conventional methods.
- the present method provides, in a particularly advantageous manner, to close, firstly, by flow turning or by deep drawing, as has been described, for example, in document DE-197 34 198, a first end 2 of a tube 3 having a section, for example of cylindrical shape.
- a variable shape In particular, it can be defined in a substantially ovoid shape 4, as illustrated in the figures of the drawings, just as it can have a cross section in the manner of a lasque.
- the method provides for heating this end 2, preferably by induction.
- any other heating means in particular a flame burner, may also be suitable.
- a perforation is made, using an appropriate tool 9, 9A, in the vicinity of this end 2, at the location on which it is desired to form a connection piece, it being specified that this end 2 of the tube 3 can, if necessary, receive several connection end pieces.
- This can be the case, for example, for a catalyst intended to be placed just downstream of an engine manifold.
- connection end piece 11 which has a shape, dimensions and orientation which are perfectly suited to its integration. in the exhaust line considered.
- connection end piece 11 whose axis Y forms with the axis X of the tube 3 an angle ⁇ of unlimited size, and which can quite have more than 30 °.
- This second connection endpiece 12 can be produced in the same way as the first, by first closing, in particular by flow spinning, said other end 5 of the tube 3, then by stretching an opening 10 previously perforated at the appropriate place, to so as to obtain the desired orientation.
- Said method can be implemented in different ways to obtain such results.
- a rotary perforating tool 9A in particular a drill as shown in FIG. 3.
- the opening 10 designed by punching or using a drill comprises, at this stage of the process, a smaller section than that of the connection end piece 11, 12 which it is ultimately sought to produce.
- this opening 10 it can again be done in different ways as shown in FIGS. 4 and 5.
- a counter punch 17, in the form of a matrix the metallic material is stretched and pushed simultaneously towards the outside of the tube 3, to form a connection end piece 11, or 12 of desired diameter.
- the tool 15A for carrying out this drawing operation is preferably defined by an expandable rotary mandrel 18 introduced inside the tube 3 through this opening 10 already perforated in a closed end 2, 5 of the tube. 3.
- This mandrel 18 allows, finally, to deform the metal to create a connection end piece 11, 12 of shape, size, and orientation in accordance with the implantation constraints identified initially.
- connection ends 11, 12, of the traditional methods and tools are not, however, exclude the use, for the design of at least one of the connection ends 11, 12, of the traditional methods and tools.
- connection end piece 11, 12 in accordance with the steps just described, and then to continue at the second end 5, not yet modified, in order to produce, for example by flow-turning, a cone opening out through a connecting piece of smaller section.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003295055A AU2003295055A1 (en) | 2002-11-05 | 2003-11-05 | Method for making a muffler or catalyst jacket |
JP2004549293A JP4278616B2 (ja) | 2002-11-05 | 2003-11-05 | サイレンサー用または触媒用のカバーの製造方法 |
DE10393652T DE10393652B4 (de) | 2002-11-05 | 2003-11-05 | Verfahren zur Herstellung eines Schalldämpfer- oder Katalysatorgehäuses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR02/13807 | 2002-11-05 | ||
FR0213807A FR2846580B1 (fr) | 2002-11-05 | 2002-11-05 | Procede de fabrication d'une enveloppe de silencieux ou de catalyseur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004041459A1 true WO2004041459A1 (fr) | 2004-05-21 |
Family
ID=32104444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/050114 WO2004041459A1 (fr) | 2002-11-05 | 2003-11-05 | Procede de fabrication d'une enveloppe de silencieux ou de catalyseur. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP4278616B2 (fr) |
CN (1) | CN100342990C (fr) |
AU (1) | AU2003295055A1 (fr) |
DE (1) | DE10393652B4 (fr) |
FR (1) | FR2846580B1 (fr) |
WO (1) | WO2004041459A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100410006C (zh) * | 2006-01-25 | 2008-08-13 | 叶鹏飞 | 一种内置过滤网的钢质过滤瓶的制造工艺 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7316292B2 (en) * | 2005-04-15 | 2008-01-08 | Et Us Holdings Llc | Spun extrusion side entry muffler |
FR2884744B1 (fr) * | 2005-04-21 | 2007-07-13 | Faurecia Sys Echappement | Volume d'echappement pour ligne d'echappement de vehicule automobile, procede de fabrication d'un tel volume d'echappement et ligne d'echappement comportant un tel volume d'echappement |
CN100447380C (zh) * | 2006-09-19 | 2008-12-31 | 上海格尔汽车金属制品有限公司 | 汽车净化器壳体的加工成型方法 |
EP3431732B1 (fr) * | 2017-07-21 | 2020-04-22 | Bosal Emission Control Systems NV | Procédé de formation d'un collier dans un boîtier de silencieux |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1500261A (en) * | 1921-04-18 | 1924-07-08 | Montour Aluminum Soldering Cor | Sheet-metal-spinning machine |
DE19626692A1 (de) * | 1996-07-03 | 1998-01-15 | Zeuna Staerker Kg | Abgasreinigungsvorrichtung für einen Verbrennungsmotor sowie Verfahren zu ihrer Herstellung |
DE19734198A1 (de) * | 1997-08-07 | 1999-02-11 | Gillet Heinrich Gmbh | Verfahren zum Herstellen von Abgaskatalysatoren |
EP1074704A2 (fr) * | 1999-08-03 | 2001-02-07 | Sango Co., Ltd. | Procédé pour la fabrication d'un convertisseur catalytique |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2957154B2 (ja) * | 1997-11-18 | 1999-10-04 | 株式会社三五 | 管端の成形方法とその装置 |
-
2002
- 2002-11-05 FR FR0213807A patent/FR2846580B1/fr not_active Expired - Lifetime
-
2003
- 2003-11-05 WO PCT/FR2003/050114 patent/WO2004041459A1/fr active Application Filing
- 2003-11-05 JP JP2004549293A patent/JP4278616B2/ja not_active Expired - Fee Related
- 2003-11-05 CN CNB2003801079561A patent/CN100342990C/zh not_active Expired - Fee Related
- 2003-11-05 AU AU2003295055A patent/AU2003295055A1/en not_active Abandoned
- 2003-11-05 DE DE10393652T patent/DE10393652B4/de not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1500261A (en) * | 1921-04-18 | 1924-07-08 | Montour Aluminum Soldering Cor | Sheet-metal-spinning machine |
DE19626692A1 (de) * | 1996-07-03 | 1998-01-15 | Zeuna Staerker Kg | Abgasreinigungsvorrichtung für einen Verbrennungsmotor sowie Verfahren zu ihrer Herstellung |
DE19734198A1 (de) * | 1997-08-07 | 1999-02-11 | Gillet Heinrich Gmbh | Verfahren zum Herstellen von Abgaskatalysatoren |
EP1074704A2 (fr) * | 1999-08-03 | 2001-02-07 | Sango Co., Ltd. | Procédé pour la fabrication d'un convertisseur catalytique |
US6381843B1 (en) * | 1999-08-03 | 2002-05-07 | Sango Co., Ltd. | Method of producing a catalytic converter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100410006C (zh) * | 2006-01-25 | 2008-08-13 | 叶鹏飞 | 一种内置过滤网的钢质过滤瓶的制造工艺 |
Also Published As
Publication number | Publication date |
---|---|
JP4278616B2 (ja) | 2009-06-17 |
AU2003295055A1 (en) | 2004-06-07 |
DE10393652T5 (de) | 2005-10-20 |
CN100342990C (zh) | 2007-10-17 |
CN1732057A (zh) | 2006-02-08 |
FR2846580B1 (fr) | 2005-01-21 |
FR2846580A1 (fr) | 2004-05-07 |
DE10393652B4 (de) | 2011-03-17 |
JP2006505410A (ja) | 2006-02-16 |
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