EP2571636A1 - Abgasschalldämpfer für brennkraftmaschinen und tiefziehwerkzeug hierfür - Google Patents
Abgasschalldämpfer für brennkraftmaschinen und tiefziehwerkzeug hierfürInfo
- Publication number
- EP2571636A1 EP2571636A1 EP11724995A EP11724995A EP2571636A1 EP 2571636 A1 EP2571636 A1 EP 2571636A1 EP 11724995 A EP11724995 A EP 11724995A EP 11724995 A EP11724995 A EP 11724995A EP 2571636 A1 EP2571636 A1 EP 2571636A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- shape
- contour
- outer contour
- edge
- 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
Classifications
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
-
- 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
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
- F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
Definitions
- the invention relates to a shell silencer for an internal combustion engine formed from a first shell and at least one second shell, which are connected to form the shell silencer on the respective peripheral edge region B s , wherein the respective edge region B s a box-shaped inner contour ⁇ 3 ⁇ with four corner regions El - E4 and a width B and a length L and an outer ⁇ contour K Sa and the respective shell is made of a shell blank R, which is formed by forming a metal strip by using a mold having the shape of the shell deep drawing tool, wherein the blank R after forming has an edge region B R with an outer contour K R , which is at least partially cut off after cutting the blank R to form an outer contour K Sa of the edge portion B s of the shell.
- the invention has for its object to form a exhaust silencer shell molds and a thermoforming tool for producing a mold shell in such a way and to arrange that a material savings and improved acoustic performance are guaranteed.
- the object is achieved according to the invention in that the inner contour K S i of the edge area B s to the box-shaped basic shape G of the shell in addition at least one corner region El - has E4, of the width B and the County ⁇ ge L is extended out, and thus at least partially adapted to the outer contour K R of the edge region B R of the blank R to be trimmed.
- This ensures that the edge region B R of the blank to be cut off is designed to be more uniform overall for the purpose of forming the inner or outer contour K S i, S a of the shell, so that there is a saving of material.
- the volume of the respective shell can be increased overall.
- the shell can be made less broad or less long overall in order to keep the same volume, which is accompanied by further material savings.
- a smaller width of the shell described above can also be used for deep drawing sheet metal strip or the corresponding coil schma ⁇ ler.
- edge portion B R of the blank which differs from a conventional box-shaped basic shape or outer contour K G indoor S i and a KS of the shell or of the edge area B s conservation with which a favorable resonance behavior or acoustic behavior is associated.
- the object is achieved in that the respective shell has a shaping A for the purpose of forming an input or output dome for connecting an exhaust pipe, wherein the molding A after forming relative to the basic shape G of the inner contour K si of the edge region B s of the shell to a depth tl protrudes, wherein the depth tl is selected such that in order to form the shape A, the size of the sheet metal strip must not be greater than in the absence of the formation A and / or in the region of the formation A a recess E is provided which is provided in addition to the sidecut T, wherein the indentation E relative to the basic shape G of the inner contour K S i of the edge portion B s of the shell is set back by a depth t2.
- the respective shell at least in the region of a longitudinal or transverse edge, has the shape A for an input or output dome.
- the features described above regarding the maximum depth t1 of this configuration A ensure the previously described savings in terms of the width or length of the metal strip used.
- Due to the inventively provided indentation E the formation of a shape A is possible, which has a desired height h.
- the indentation E ensures an increase in the size or height h of the shape A beyond the waisting T of the basic shape G addition.
- the indentation E is provided in addition to the sidecut T.
- the height h of the formation A can reach the total depth tl plus t2.
- the depth t1 decreases and can also become zero if the formation is trimmed at the level of the inner contour K si .
- the outer contour K Sa has one of the inner contour K s ⁇ different shape on ⁇ .
- the inner contour K S i and the outer contour K Sa each other.
- the outer contour K Sa can be adapted beyond the widening of the inner contour K S i to the contour K R of the blank or its corner regions, so that the acoustic properties can be favorably influenced.
- the inner contour K S i and / or the outer contour K Sa of the edge region B s of the shell is formed from a first longitudinal edge LI, a second longitudinal edge L2, a first transverse edge Ql and a second transverse edge Q2 and the four Corner regions El, E2, E3, E4, wherein the respective corner region El, E2, E3, E4 connects a longitudinal edge LI, L2 with a transverse edge Ql, Q2 and the edge region B s of the shell at least in the region of a longitudinal edge LI, L2 and / or a transverse edge Ql, Q2 has a sidecut T, which extends over at least 50% to 80% ei ⁇ ner width wl and / or a width w2 of the shell.
- the picking up of a shape with a sidecut T is advantageous.
- a sidecut is accompanied by the fact that the shell is narrower or shorter in the area of the sidecut than in the area of the respective corner, which justify the beginning and end of the sidecut.
- the upper limit of the sidecut is probably in the range of 90% to 95%, depending on the radius of the corner to be applied. At 100% waist ratio no waist is no longer available.
- the inner contour K S i and / or the outer contour K Sa of the edge region B s of the shell in the region of both longitudinal edges Li, L2 and / or in the region of both transverse edges Ql, Q2 has the sidecut T.
- the waist can optionally be provided at different longitudinal or transverse edges. This is depending on the desired design and the associated Resonanzverhal ⁇ th on the one hand and the desired material savings to decide on the other hand. It may be favorable if the sidecut is provided both on both longitudinal and on both transverse edges, so that overall the aforementioned advantages add up to a maximum.
- the inner contour K S i and / or the outer contour K Sa of Randbe ⁇ rich B s the shell a bone-shaped basic shape G justified.
- the waist is provided on all four longitudinal edges, resulting in an exemplary embodiment bone-shaped basic shape G, due to the extended corner areas the previously described maximum volume while minimizing the width of the sheet metal strip used on the one hand and minimizing the length of the metal strip to be used guaranteed on the other hand.
- the object is also achieved by a deep-drawing tool with an outer contour Kw having basic shape G3 for ⁇ forming a sheet metal strip to form a blank R a shell of a shell muffler on the type and shape as previously described, wherein the outer contour Kw the basic shape G3 of the thermoforming tool at least one Corner region El - E4 has, which is extended beyond the width B and the length L and thus at least partially to the contour K R of the edge region B R of the to be trimmed Rohlings R is adapted.
- the savings achieved in the formation of the deep-drawing tool concerning the width and length thereof are also provided, therefore, constitute the essential ADVANTAGES ⁇ le of the shell, which are executed as found in acoustics and saving on the part of the shell muffler.
- the object is achieved in that the outer contour Kw of the basic mold G3 of the thermoforming mold has a shape for the purpose of forming an input or output dome to An ⁇ close an exhaust pipe, the shape rela ⁇ tive to the basic shape G of the outer contour Kw by a depth t3 , t3 'protrudes, wherein the depth t3 is selected such that for the formation of the shape A, the size of the sheet ⁇ strip must not be greater than in the absence of the shape A and / or that in the form of complementary to the sidecut T an offset is provided, the offset being set back relative to the basic shape G of the outer contour Kw by a depth t4.
- the shape can thus reach a maximum depth of the size t3 plus t4, so that a shape A with the desired height h can be realized.
- the object is also achieved by methods for determining an inner and / or outer contour K S i, K Sa of a Randbe ⁇ rich B s a shell for producing a muffler with the following steps:
- Figure 1 is a plan view of a shell according to the prior
- Figure 2a is a plan view of a shell according to the invention.
- Figure 2b is a sectional view S-S of Figure 2a;
- Figure 3 is a perspective view of a Tiefziehtechnik ⁇ zeugs
- Figure 4 is a perspective view of a shell silencer.
- a first shell 1.1 of a shell muffler 1 is formed by deep-drawing a metal strip 2, which is formed rectangular starting from a metal strip coil.
- a desired contour K s of the shell 1.1 with a basic shape G, which is box-shaped, that is rectangular in shape with rounded corners, according to FIG. 1, a so-called ter blank R obtained whose edge has a contour K R , on the one hand deviates from the rectangular shape of the sheet ⁇ strip 2 and on the other hand deviates from the desired box-shaped contour K s of the shell 1.1.
- the contour K R of the blank R is also referred to as bone-shaped, since in the region of the respective corner the remaining edge to be cut off for the purpose of forming the contour K s or outer contour K Sa of the shell 1.1 is substantially larger than in the region between the respective corner.
- the inventive contour K is s, which is Au ⁇ .kontur K Sa and K si inner contour of the shell to the kno 1.1 ⁇ chenförmige contour adapted K R R of the blank.
- the fire ⁇ le 1.1 or contour K has s this, a basic form of G on in the corner regions of El - E4 over the width B and the length L out are extended so that the contour K s at least partially to the contour K R of the trimmed Randbe Reich ⁇ B is adapted R R of the blank.
- two opposite longitudinal edges LI, L2 and two re ⁇ rum opposite transverse edges Ql, Q2, which are connected to each other by a corner region of El, E2, E3, E4 yield.
- the contour K s or the basic shape G has a sidecut T.
- the distance between the two longitudinal edges LI, L2 or the two transverse edges Q1, Q2 is smaller than a length w1 of the shell 1.1 or a width w2 of the shell 1.1.
- the tray shown here has 1.1 in the region of its longitudinal edge a formation L2 A is an ON or OFF ⁇ gangskalotte 1.3 according to Fig. 4 in.
- a depression E of the depth t2 is provided in the region of the formation A.
- the indentation E is essentially formed of a fillet radius R V 1 and see additional measures to the waist T ⁇ an adjoining connecting portion V A 1.
- the shape A extends over the vorgenann ⁇ th rounding radius R V 1 and the adjoining connecting portion Ver ⁇ A 1 V as well as an adjoining fillet radius R V 2 over a height h.
- the depth tl is chosen such that the metal strip 2 only because of the shape A not to be selected wider than in the case without forming From ⁇ A.
- the depth tl therefore corresponds approximately to the thickness of the peripheral area B s and the height of the
- the waist T runs over about 84% of the length wl and 66% of the width w2.
- the sidecut T may also be provided only on a part of the respective longitudinal or transverse edge LI to Q2.
- FIG. 2b sectional view SS from FIG. 2 (partial cross-sectional right half) 1.1 the shell has a verblei ⁇ reproduced edge region B s, the remains ⁇ after the trimming of the edge portion B R of the blank R with the outer contour K R ver.
- the shell 1.1 is connected to a corresponding second shell 1.2 according to FIG. 4. This can be done by welding or flanging.
- the inner contour K S i deviates from the réellekon ⁇ tur K SA.
- the expression of the contour K s according to the invention is to be provided at least in the region of the inner contour K si .
- the expression or extension for the outer contour K Sa can also be greater than that of the inner contour K S j_.
- An illustrated in Figure 3 is deep-drawing tool 3 and drawing ⁇ stamp also has an outer contour K w with a kno ⁇ tenförmigen G3 basic shape with four corner regions El - E4 on.
- the deep-drawing tool 3 also has two shapes 3.1, 3.1 ⁇ to form a desired shape A for an input or output calotte 1.3 both in the region of the longitudinal edge and in the region of the transverse edge.
- the forms 3.1, 3.1 protrude by a depth t3, t3 'on the outer contour K w .
- the depth t3, t3 ' is chosen such that the width of the available sheet metal strip 2 is sufficient for the formation of the shape A.
- an offset 3.2, 3.2 ' is provided in addition to the sidecut T, the offset 3.2, 3.2' being set back by a depth t4 relative to the basic shape G of the outer contour Kw.
- the form 3.1 is thus over the Depth t3 plus the depth t4 on the basic shape G of the outer ⁇ contour Kw forth.
- the two shells 1.1 and 1.2 are connected to one another in the edge area B s , so that they limit the extended volume per shell in duplicate.
- bone-chenförmige forming the shell muffler 1 also ensures the acoustic previously described parts Before ⁇ .
- ribs 1.4, 1.4 ⁇ are provided in the region of the respective shell, which additionally improve the acoustic behavior or resonance behavior.
- the ribs 1.4, 1.4 extend approximately parallel to the respective transverse edge ⁇ . In addition, these can also be provided multiple times and alternatively in aticiansbei ⁇ game not shown in other directions, in particular parallel to the respective longitudinal edge run.
- the shells 1.1, 1.2 are trimmed, so that the outer contour K Sa results.
- the shape A is also trimmed, so that the Tie ⁇ fe tl (not shown) is significantly smaller than after molding.
- FIG. 5 shows the detail view D of FIG. Concerning the formation A with the rounding radii V R i, V R2, and the Ver ⁇ connecting portion V A, of which the inner contour K S i is transferred to the contour of the molding A.
- the height h of the off ⁇ modeling A corresponds to the two depths tl and t2. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010020826 DE102010020826B4 (de) | 2010-05-18 | 2010-05-18 | Abgasschalldämpfer für Brennkraftmaschinen und Tiefziehwerkzeug hierfür sowie Verfahren zur Herstellung eines solchen Schalldämpfers |
| PCT/EP2011/057983 WO2011144621A1 (de) | 2010-05-18 | 2011-05-17 | Abgasschalldämpfer für brennkraftmaschinen und tiefziehwerkzeug hierfür |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2571636A1 true EP2571636A1 (de) | 2013-03-27 |
| EP2571636B1 EP2571636B1 (de) | 2018-03-14 |
Family
ID=44626973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11724995.3A Not-in-force EP2571636B1 (de) | 2010-05-18 | 2011-05-17 | Verfahren zum herstellen eines abgasschalldämpfers für brennkraftmaschinen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9440276B2 (de) |
| EP (1) | EP2571636B1 (de) |
| CN (1) | CN102985194B (de) |
| BR (1) | BR112012029354A2 (de) |
| DE (1) | DE102010020826B4 (de) |
| WO (1) | WO2011144621A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3431732B1 (de) | 2017-07-21 | 2020-04-22 | Bosal Emission Control Systems NV | Verfahren zur formung eines kragens in einem schalldämpfergehäuse |
| CN108266254A (zh) * | 2018-01-17 | 2018-07-10 | 无锡曙光模具有限公司 | 一种汽车消音半壳及其加工方法 |
| CN117583472B (zh) * | 2023-10-17 | 2024-04-26 | 无锡曙光精密工业有限公司 | 一种半壳冲压成型件的嵌块式冲压模具与工艺 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3263637A (en) * | 1964-12-23 | 1966-08-02 | Darwin S Cox | Method of deep drawing rectangular shapes |
| US3568254A (en) * | 1968-09-19 | 1971-03-09 | Monsanto Co | Apparatus for deep draw molding |
| US3638756A (en) * | 1969-12-30 | 1972-02-01 | United States Steel Corp | Vehicle muffler and method of assembly |
| US4309888A (en) * | 1976-07-22 | 1982-01-12 | Kraftco Corporation | Apparatus for forming a container pan |
| US4909348A (en) * | 1988-01-20 | 1990-03-20 | Ap Parts Manufacturing Company | Stamp formed exhaust muffler with conformal outer shell |
| US4836330A (en) * | 1988-08-03 | 1989-06-06 | Ap Industries, Inc. | Plural chamber stamp formed muffler with single intermediate tube |
| US4865154A (en) * | 1988-09-26 | 1989-09-12 | Tennessee Gas Pipeline Company | Muffler with drain holes |
| US4905791A (en) * | 1989-01-23 | 1990-03-06 | Ap Parts Manufacturing Company | Light weight hybrid exhaust muffler and method of manufacture |
| FR2646207A1 (fr) | 1989-04-25 | 1990-10-26 | Devil | Silencieux modulaire |
| US5004069A (en) * | 1990-01-26 | 1991-04-02 | Ap Parts Manufacturing Company | Stamp formed muffler with transverse baffle tube |
| US5164551A (en) * | 1990-12-03 | 1992-11-17 | Ap Parts Manufacturing Co. | Stamp formed muffler with compound reinforcement pattern for preventing shell ring |
| US5280142A (en) | 1991-10-18 | 1994-01-18 | Ap Parts Manufacturing Company | Heat shielded exhaust system component |
| US5428194A (en) * | 1993-10-19 | 1995-06-27 | Ap Parts Manufacturing Company | Narrow width stamp formed muffler |
| US5448831A (en) * | 1993-11-08 | 1995-09-12 | Ap Parts Manufacturing Company | Method of manufacturing a stamp formed muffler with hermetically sealed laminated outer shell |
| US5949035A (en) * | 1997-03-24 | 1999-09-07 | Arvin Industries, Inc. | Stamp-formed muffler having a unitary inner cartridge |
| DE19747914A1 (de) * | 1997-10-30 | 1999-05-06 | Stihl Maschf Andreas | Abgasschalldämpfer |
| DE29805455U1 (de) * | 1998-03-26 | 1998-06-04 | Fa. Andreas Stihl, 71336 Waiblingen | Abgasschalldämpfer für den Verbrennungsmotor eines tragbaren Arbeitsgerätes |
| DE19849118B4 (de) | 1998-10-24 | 2012-03-22 | Andreas Stihl Ag & Co. | Abgasschalldämpfer |
| US6931367B2 (en) | 2001-11-29 | 2005-08-16 | Faurecia Exhaust Systems, Inc. | Optimal rib design method for exhaust components |
| DE10239132B4 (de) * | 2002-08-27 | 2012-11-15 | Andreas Stihl Ag & Co | Abgasschalldämpfer |
| DE10243225A1 (de) * | 2002-09-17 | 2004-03-25 | Volkswagen Ag | Schalldämpfer und Verfahren zu seiner Auslegung |
| DE202004000659U1 (de) * | 2004-01-17 | 2004-04-15 | Heinrich Gillet Gmbh | Schalldämpfer für Kraftfahrzeuge mit Verbrennungsmotor |
| EP1895118A1 (de) * | 2006-08-29 | 2008-03-05 | Tecumseh Products Company | Passiver Sekundärluftschalldämpfer |
| KR101063640B1 (ko) * | 2008-06-12 | 2011-09-08 | 현대자동차주식회사 | 차량용 소음기 |
| DE202008016200U1 (de) * | 2008-12-06 | 2009-03-12 | Heinrich Gillet Gmbh | Schalldämpfer für Abgasanlagen |
-
2010
- 2010-05-18 DE DE201010020826 patent/DE102010020826B4/de active Active
-
2011
- 2011-05-17 BR BR112012029354A patent/BR112012029354A2/pt active Search and Examination
- 2011-05-17 WO PCT/EP2011/057983 patent/WO2011144621A1/de not_active Ceased
- 2011-05-17 EP EP11724995.3A patent/EP2571636B1/de not_active Not-in-force
- 2011-05-17 US US13/697,956 patent/US9440276B2/en not_active Expired - Fee Related
- 2011-05-17 CN CN201180034173.XA patent/CN102985194B/zh active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011144621A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102985194A (zh) | 2013-03-20 |
| WO2011144621A1 (de) | 2011-11-24 |
| BR112012029354A2 (pt) | 2017-12-05 |
| DE102010020826B4 (de) | 2013-06-06 |
| DE102010020826A1 (de) | 2011-11-24 |
| US9440276B2 (en) | 2016-09-13 |
| EP2571636B1 (de) | 2018-03-14 |
| US20130056298A1 (en) | 2013-03-07 |
| CN102985194B (zh) | 2015-12-09 |
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