EP2067951A1 - Abgaskrümmer aus dünnwandigem Metallblech für Brennkraftmaschine - Google Patents
Abgaskrümmer aus dünnwandigem Metallblech für Brennkraftmaschine Download PDFInfo
- Publication number
- EP2067951A1 EP2067951A1 EP08305877A EP08305877A EP2067951A1 EP 2067951 A1 EP2067951 A1 EP 2067951A1 EP 08305877 A EP08305877 A EP 08305877A EP 08305877 A EP08305877 A EP 08305877A EP 2067951 A1 EP2067951 A1 EP 2067951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ducts
- exhaust manifold
- engine
- exhaust
- manifold according
- 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
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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- 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
-
- 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
-
- 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
- F01N2470/10—Tubes having non-circular cross section
Definitions
- the present invention relates to a thin sheet metal exhaust manifold for an internal combustion engine.
- a thin-sheet exhaust manifold for an internal combustion engine comprising at least two exhaust pipes connected to the engine cylinders, which meet in a common section, in the direction of an opening of the engine. single output, on the exhaust line of the engine.
- Sheet metal collectors which are much lighter and more efficient than traditional cast iron collectors, are generally made by assembling two shells, or half shells, made of sheet metal, welded together on their outer edges.
- the pipes of the collector must sometimes cross on their way.
- these crossings are hardly compatible with the technology used.
- the present invention aims to circumvent the constraints mentioned above, retaining a sheet metal manufacturing technology, while being able to flatten the section of the ducts locally, or cross pipe elements, depending on the constraints of size of the engine.
- an exhaust manifold comprising two first outer half-shell plates welded to their outer edges, and a third intermediate sheet separating in two parts the volume of the ducts, at least a portion of their length.
- the two exhaust ducts may be from two outer cylinders, or two intermediate cylinders of the engine.
- FIG. 1 partially shown a four-cylinder engine exhaust manifold, showing in section the two outer exhaust pipes 1, 2 respectively connecting the two outer cylinders of a four-cylinder engine at the outlet of the collector on the continuation of the exhaust line (not shown).
- the diagram shows the neutral lines 1a, 2a of the two ducts 1, 2, as well as the location of the two cross sections AA and BB of the two Figures 1A and 1B .
- the two ducts 1,2 join to form a common conduit 4, their junction 3 to the outlet 6 of the collector.
- the sections show that they are composed of three sheets or "shells" 7, 8, 9 welded to their outer edges.
- the manifold illustrated by the figures is a thin-sheet exhaust manifold for an internal combustion engine, comprising at least two exhaust ducts 1, 2, connected to the engine cylinders, which meet in a common section 4 in direction of a single exit opening 6 on the exhaust line of the engine.
- This manifold thus comprises two first outer plates 7, 8, in the form of half shell welded on their outer edges and a third intermediate sheet 9 separating in two parts the volume of the ducts over at least a part of their length.
- the third sheet, or shell may extend over the entire length of the ducts, or only over part of their length, for example between the junction 3 of the ducts, and the junction 3a of their neutral lines 1a, 2a, in the section 4.
- the interest of the third sheet is to be able to separate as long as possible the flows of the two ducts.
- this separation is maintained by laterally shifting the two half-shells by "sliding" on the intermediate plate to keep separate streams, as far as the environment allows.
- the plate 9 can extend to the common outlet 6 of the collector over the entire length of the ducts.
- this provision is not mandatory, it may extend only over a portion of the length of the conduits, 1, 2, for example between their junction 3, and the junction 3a of their neutral lines 1a, 2a.
- the figure 2 and the two sections 2A, 2B illustrate in particular the application of the invention to the case of the two intermediate cylinders of an engine.
- the lines of contact 7a, 8a, 9a, the two half-shells 7, 8, and the intermediate plate 9 are drawn in continuous lines with the same section plane.
- dashed lines appear the outer edges 7b, 8b, 9b, welding zones of the two half-shells and the intermediate sheet.
- the two half-shells 7, 8 can be shoveled on either side of the intermediate plate 9, over at least a portion of the length of the ducts 1, 2.
- the welding zones of the two half shells on the sheet can be shifted on at least a part of the length of the ducts.
- the two cylinders concerned may therefore be external cylinders, or intermediate cylinders of the engine.
- the two examples of application illustrated by the figures and described above, show, in a nonlimiting manner, the application of the invention to pairs of ducts of a collector, which will generally comprise a higher number of ducts (four , six or more).
- the invention finds its application on an engine exhaust manifold generally having any even number of cylinders, and in which the exhaust ducts can be grouped in pairs, in intermediate ducts, themselves grouped together. in a single outlet duct.
- the same intermediate sheet, or third sheet can pass through all the ducts, to facilitate their shift and their grouping.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0759570A FR2924752B1 (fr) | 2007-12-05 | 2007-12-05 | Collecteur d'echappement en tole mince pour moteur a combustion interne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2067951A1 true EP2067951A1 (de) | 2009-06-10 |
EP2067951B1 EP2067951B1 (de) | 2010-10-13 |
Family
ID=39590818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08305877A Revoked EP2067951B1 (de) | 2007-12-05 | 2008-12-03 | Abgaskrümmer aus dünnwandigem Metallblech für Brennkraftmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2067951B1 (de) |
AT (1) | ATE484662T1 (de) |
DE (1) | DE602008002988D1 (de) |
FR (1) | FR2924752B1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986003256A1 (en) * | 1984-11-19 | 1986-06-05 | Vincent Patents Limited | Exhaust systems for multi-cylinder internal combustion engines |
DE29816479U1 (de) * | 1998-09-15 | 1998-12-24 | Adam Opel AG, 65428 Rüsselsheim | Zweiflutiges Rohr, insbesondere für Abgasanlagen von Brennkraftmaschinen |
US6018946A (en) * | 1996-09-12 | 2000-02-01 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust manifold of multi-cylinder internal combustion engine |
US20030163918A1 (en) * | 1999-12-24 | 2003-09-04 | Kabushi Kaisha Yutaka Gigen | Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction |
EP1538315A2 (de) * | 2003-12-02 | 2005-06-08 | Calsonic Kansei Corporation | Abgasesystem für Verbrennungsmotor |
WO2006019286A1 (en) * | 2004-08-20 | 2006-02-23 | Sejong Industrial Co., Ltd. | Front muffler |
-
2007
- 2007-12-05 FR FR0759570A patent/FR2924752B1/fr not_active Expired - Fee Related
-
2008
- 2008-12-03 DE DE602008002988T patent/DE602008002988D1/de active Active
- 2008-12-03 AT AT08305877T patent/ATE484662T1/de not_active IP Right Cessation
- 2008-12-03 EP EP08305877A patent/EP2067951B1/de not_active Revoked
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986003256A1 (en) * | 1984-11-19 | 1986-06-05 | Vincent Patents Limited | Exhaust systems for multi-cylinder internal combustion engines |
US6018946A (en) * | 1996-09-12 | 2000-02-01 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust manifold of multi-cylinder internal combustion engine |
DE29816479U1 (de) * | 1998-09-15 | 1998-12-24 | Adam Opel AG, 65428 Rüsselsheim | Zweiflutiges Rohr, insbesondere für Abgasanlagen von Brennkraftmaschinen |
US20030163918A1 (en) * | 1999-12-24 | 2003-09-04 | Kabushi Kaisha Yutaka Gigen | Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction |
EP1538315A2 (de) * | 2003-12-02 | 2005-06-08 | Calsonic Kansei Corporation | Abgasesystem für Verbrennungsmotor |
WO2006019286A1 (en) * | 2004-08-20 | 2006-02-23 | Sejong Industrial Co., Ltd. | Front muffler |
Also Published As
Publication number | Publication date |
---|---|
FR2924752B1 (fr) | 2015-09-18 |
ATE484662T1 (de) | 2010-10-15 |
FR2924752A1 (fr) | 2009-06-12 |
EP2067951B1 (de) | 2010-10-13 |
DE602008002988D1 (de) | 2010-11-25 |
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