US20070180820A1 - Dual wall exhaust manifold and method of making same - Google Patents
Dual wall exhaust manifold and method of making same Download PDFInfo
- Publication number
- US20070180820A1 US20070180820A1 US11/649,095 US64909507A US2007180820A1 US 20070180820 A1 US20070180820 A1 US 20070180820A1 US 64909507 A US64909507 A US 64909507A US 2007180820 A1 US2007180820 A1 US 2007180820A1
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- US
- United States
- Prior art keywords
- inner shell
- exhaust manifold
- flange
- outer shell
- dual wall
- 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.)
- Abandoned
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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
- F01N13/18—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
-
- 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
- F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
-
- 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
- F01N13/14—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 thermal insulation
- F01N13/141—Double-walled exhaust pipes or housings
- F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
-
- 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
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- 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
- F01N13/1861—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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
Definitions
- the present invention relates generally to exhaust manifolds, and more specifically, to dual-wall exhaust manifolds for use with internal combustion engines.
- allowing for thermal expansion tolerances is required for a properly manufactured and designed manifold assembly. Specifically, the inner tubes and other components are heated to higher temperatures than the outer tubes. Therefore, allowing for thermal expansion of the inner components is essential in a properly functioning dual-wall manifold assembly.
- manufacturing costs of a manifold assembly can be significant, and a continual need in the industry is to reduce these manufacturing costs. Reducing the number of components of the manifold assembly can significantly reduce manufacturing and labor costs. In addition to reducing costs, the industry continues to seek any improvement in strength and durability of the assembly. Placement and type of the weld, for example, can be important in terms of manufacturing costs as well as overall strength and durability of the manifold assembly.
- a dual wall exhaust manifold assembly is provided.
- the manifold has an outer shell and an inner shell spaced apart to allow for an air gap between the shells.
- the inlet flange and the outlet flange have counterbores.
- the counterbore of the outlet flange aids in spacing the inner shell and the outer shell.
- the inner shell is connected to the outlet flange with a slip fit joint.
- the counterbore of the outlet flange provides an area to weld the outer shell to the outlet flange.
- the counterbore of the inlet flange allows space for welding the inner shell to the inlet flange.
- the manifold assembly of the present invention eliminates components typically required for manufacture of a dual wall exhaust manifold, such as stub tubes and spacers.
- FIG. 1 illustrates inner shell joints of a dual-wall exhaust manifold assembly in an embodiment of the present invention.
- FIG. 2 illustrates outer shell joints of a dual-wall exhaust manifold assembly in an embodiment of the present invention.
- FIG. 3 illustrates a cross-sectional view of a welded connection between an inlet flange and an inner shell of a dual-wall manifold assembly in an embodiment of the present invention.
- FIGS. 4 and 5 illustrates an underside view of a dual-wall exhaust manifold assembly in an embodiment of the present invention.
- FIG. 6 illustrates an outer shell and an inner shell connected to an outlet flange of a dual-wall exhaust manifold in an embodiment of the present invention.
- FIG. 7 illustrates an outer shell and an inner shell connected to an inlet flange of a dual-wall exhaust manifold in an embodiment of the present invention.
- a dual-walled exhaust manifold 10 having a body or log 11 is provided.
- the body 11 includes an outer shell 12 and an inner shell 14 connected to an outlet flange 16 and an inlet flange 18 .
- the body 9 of the manifold 10 is in fluid communication with each of several runners 11 a - 11 d , shown in the drawings as four in number.
- the illustrated manifold 10 can, for example, have any number of runners for any number of cylinders of an engine.
- the manifold 10 can be used in a V-8 engine where the manifold 10 may be duplicated on the opposite side of the engine.
- the manifold assembly 10 is attachable to an engine block and the outlet (or exhaust) flange 16 . Exhaust from a vehicle engine, for example, flows from the engine through passageways into the inlet flange 18 and in the runners 11 a - 11 d . The engine exhaust is expelled from the manifold 10 through the outlet flange 16 .
- the outer shell 12 and the inner shell 14 may be formed from two or more components.
- the outer shell 12 and the inner shell 14 are formed from two portions joined along a centerline of the shells 12 , 14 . It is also anticipated that each of the shells 12 , 14 may be integrally formed.
- the outer shell 12 substantially surrounds and/or encloses the inner shell 14 .
- the outer shell 12 may have several channels 13 corresponding in number and shape to the runners 11 a - 11 d of the inner shell 14 .
- the outer shell 12 and the inner shell 14 are positioned so that an air gap is formed between the shells 12 , 14 as illustrated in FIG. 3 .
- the inner shell 14 may have a first portion 14 a and a second portion 14 b that are welded together, as shown in FIG. 1 .
- joints 15 of the portions 14 a , 14 b of the inner shell 14 are welded together.
- the joints 15 are welded to provide increased strength and durability.
- the joint 15 are welded multiple times and have strength greater than typical welds. In one such embodiment illustrated in FIG. 1 , the joints 15 are welded in five areas—three lip areas 17 a and two overlap areas 17 b —to increase the strength of attachment of the inner shells 14 .
- the outer shell 12 may have a first side 12 a and a second side 12 b that are welded together.
- the sides 12 a , 12 b are positioned to form overlap joints, preferably two overlap joints 19 that are welded together.
- FIG. 3 illustrates areas of weld between the inner shell 14 and the inlet flange 18 .
- the inner shell 14 is welded along the outside of the inner shell 14 .
- the inner shell 14 and inlet flange 18 can then be cleaned (tumbled).
- the inlet flange 18 has a counterbore 20 formed therein as shown in FIG. 7 .
- the counterbore 20 provides a surface within the inlet flange 18 for mating engagement with the outer shell 12 and the inner shell 14 .
- the counterbore 20 has a diameter substantially similar to the diameter of the outer shell 12 .
- the shells 12 , 14 are positioned within the counterbore 20 such that there is minimal restriction in fluid flow from the inlet flange 18 into the inner shell 14 .
- the counterbore 20 has a tolerance or space allowing for welding of the inner shells 14 to the inlet flange 18 .
- the weld of the inner shells 14 to the inlet flange 18 may be welded multiple times, most preferably, four times (e.g. along the four welding areas 17 ).
- the outer shell 12 may be inserted into the counterbore 20 and welded to the inlet flange 18 as shown in FIG. 7 .
- the outer shell 12 is welded to the outlet flange 16 as shown in FIG. 6 .
- the outlet flange 16 is slipped or otherwise positioned onto the outer shell 12 and the inner shell 14 .
- a counterbore 22 in the outlet flange 16 is sized to correspond to the size of the outer shell 12 .
- the counterbore 22 provides a surface within the flange 16 for receiving the inner shell 14 and the outer shell 12 .
- the shells 12 , 14 are positioned within the counterbore 22 such that there is minimal restriction in fluid flow from the inner shell 14 through the outlet flange 16 .
- the diameter of the counterbore 22 is substantially similar to the diameter of the outer shell 12 .
- the counterbore 22 may have a slightly larger diameter to accommodate and/or to provide space for welding the outer shell 12 to the outlet flange 16 .
- the inner shell 14 is sized for a slip fit joint connection 23 to the outlet flange 16 .
- the slip fit joint connection 23 allows for thermal expansion of the inner shell 14 .
- the inner shell 14 is secured to the outlet flange 16 without welding.
- the outer shell 12 may be welded to the outlet flange 16 and the weld continued into weld of the portions 14 a , 14 b of the inner shell 14 .
- the outer shells 12 are welded together and to the inlet flange 18 and outlet flange 16 .
- the present invention does not require stub tubes as utilized in the prior art. Further, the current design is stronger than previous dual-wall exhaust components without additional welding. Because the inner and outer shells 14 , 12 are separated by inlet and outlet flange counterbores 20 , 22 , no spacers are required. Welding the outer shell 12 to the inlet flange 18 and outlet flange 16 is stronger than prior art designs.
- the outer shell 12 and the inner shell 14 are separated and/or spaced apart from each other a controlled amount such that air space or gap is formed between the shells 12 , 14 .
- the air gap serves to insulate heat from the inner shell 14 .
- the air can insulate the inner shell 14 from conducting or otherwise transferring heat to the outer shell 12 .
- the amount of space between the shells 12 , 14 may be predetermined based upon the specifications of the engine or components of the manifold assembly 10 .
- the counterbores 20 , 22 are formed in the flanges 16 , 18 to correspond to the predetermined amount of space required between the shells 12 , 14 .
- the manifold design reduces the number of components utilized in the prior art designs, specifically reducing stub tubes and spacers.
- the construction allows for thermal growth of inner components and improves the strength and durability of the component. Further, the manufacture is simplified due to few component parts and a less complex construction.
Abstract
Description
- This non-provisional application claims the benefit of U.S. Provisional Patent Application No. 60/756,238, entitled “DUAL WALL EXHAUST MANIFOLD,” filed Jan. 3, 2005, which is hereby incorporated by reference in its entirety.
- The present invention relates generally to exhaust manifolds, and more specifically, to dual-wall exhaust manifolds for use with internal combustion engines.
- Many modern high performance engines generate extremely hot gas emissions. As these emissions are expelled from the engine and pass through the exhaust manifold, the hot emissions heat the exhaust manifold or pipes to increasingly high temperatures. Such high temperatures cause the temperature of the tubes to elevate resulting in discoloration of the tubes. As such, some component designs utilize a dual wall construction that utilizes an air gap between the inner and outer tubes. Known dual wall manifolds utilize spacers and stub tubes to properly space the inner and outer tubes. The air gap insulates the outer tube from the inner tube. As a result, the inner tube is insulated from significant heat transfer to the outer tube. Therefore, discoloration and excessive heating are minimized. However, use of stub tubes, spacers and the related labor associated with these components is costly.
- In order to manufacture the components of the manifold in a cost and labor efficient manner, manufacturers balance many factors including weld placement, weld types, component numbers, thermal expansion of components and the like. Each of these components is vital in manufacturing cost effective dual-wall components that perform and act properly under working conditions.
- For example, allowing for thermal expansion tolerances is required for a properly manufactured and designed manifold assembly. Specifically, the inner tubes and other components are heated to higher temperatures than the outer tubes. Therefore, allowing for thermal expansion of the inner components is essential in a properly functioning dual-wall manifold assembly.
- Furthermore, manufacturing costs of a manifold assembly can be significant, and a continual need in the industry is to reduce these manufacturing costs. Reducing the number of components of the manifold assembly can significantly reduce manufacturing and labor costs. In addition to reducing costs, the industry continues to seek any improvement in strength and durability of the assembly. Placement and type of the weld, for example, can be important in terms of manufacturing costs as well as overall strength and durability of the manifold assembly.
- Therefore, there is a need in the art to provide a dual-wall exhaust manifold that can overcome at least several of the above disadvantages and achieve at lease some of the above advances desirable in the art.
- A dual wall exhaust manifold assembly is provided. The manifold has an outer shell and an inner shell spaced apart to allow for an air gap between the shells. To ease in manufacture and assembly, the inlet flange and the outlet flange have counterbores. The counterbore of the outlet flange aids in spacing the inner shell and the outer shell. The inner shell is connected to the outlet flange with a slip fit joint. The counterbore of the outlet flange provides an area to weld the outer shell to the outlet flange. The counterbore of the inlet flange allows space for welding the inner shell to the inlet flange. Advantageously, the manifold assembly of the present invention eliminates components typically required for manufacture of a dual wall exhaust manifold, such as stub tubes and spacers.
- Objects and advantages together with the operation of the invention may be better understood by reference to the following detailed description taken in connection with the following illustrations, wherein:
-
FIG. 1 illustrates inner shell joints of a dual-wall exhaust manifold assembly in an embodiment of the present invention. -
FIG. 2 illustrates outer shell joints of a dual-wall exhaust manifold assembly in an embodiment of the present invention. -
FIG. 3 illustrates a cross-sectional view of a welded connection between an inlet flange and an inner shell of a dual-wall manifold assembly in an embodiment of the present invention. -
FIGS. 4 and 5 illustrates an underside view of a dual-wall exhaust manifold assembly in an embodiment of the present invention. -
FIG. 6 illustrates an outer shell and an inner shell connected to an outlet flange of a dual-wall exhaust manifold in an embodiment of the present invention. -
FIG. 7 illustrates an outer shell and an inner shell connected to an inlet flange of a dual-wall exhaust manifold in an embodiment of the present invention. - Although the preferred embodiment of the invention has been illustrated in the accompanying drawings and described in the subsequent detailed description, it is to be understood that the invention is not to be limited to just the preferred embodiment disclosed, but that the invention described herein is capable of numerous rearrangements, modifications and substitutions without departing from the scope of the claims as appended hereafter.
- Referring to the drawings, a dual-
walled exhaust manifold 10 having a body orlog 11 is provided. Thebody 11 includes anouter shell 12 and aninner shell 14 connected to anoutlet flange 16 and aninlet flange 18. The body 9 of themanifold 10 is in fluid communication with each ofseveral runners 11 a-11 d, shown in the drawings as four in number. The illustratedmanifold 10 can, for example, have any number of runners for any number of cylinders of an engine. For example, themanifold 10 can be used in a V-8 engine where themanifold 10 may be duplicated on the opposite side of the engine. Themanifold assembly 10 is attachable to an engine block and the outlet (or exhaust)flange 16. Exhaust from a vehicle engine, for example, flows from the engine through passageways into theinlet flange 18 and in therunners 11 a-11 d. The engine exhaust is expelled from themanifold 10 through theoutlet flange 16. - The
outer shell 12 and theinner shell 14 may be formed from two or more components. Preferably, theouter shell 12 and theinner shell 14 are formed from two portions joined along a centerline of theshells shells outer shell 12 substantially surrounds and/or encloses theinner shell 14. Theouter shell 12 may haveseveral channels 13 corresponding in number and shape to therunners 11 a-11 d of theinner shell 14. Theouter shell 12 and theinner shell 14 are positioned so that an air gap is formed between theshells FIG. 3 . - The
inner shell 14 may have afirst portion 14 a and asecond portion 14 b that are welded together, as shown inFIG. 1 . In an embodiment,joints 15 of theportions inner shell 14 are welded together. In a preferred embodiment, thejoints 15 are welded to provide increased strength and durability. In a most preferred embodiment, thejoint 15 are welded multiple times and have strength greater than typical welds. In one such embodiment illustrated inFIG. 1 , thejoints 15 are welded in five areas—threelip areas 17 a and twooverlap areas 17 b—to increase the strength of attachment of theinner shells 14. - As shown in
FIG. 2 , theouter shell 12 may have afirst side 12 a and asecond side 12 b that are welded together. Thesides overlap joints 19 that are welded together. By overlapping thesides outer shell 12, the strength and durability of theouter shell 12 is increased. - The
inner shell 14 is inserted into theinlet flange 18 and welded as shown inFIG. 7 .FIG. 3 illustrates areas of weld between theinner shell 14 and theinlet flange 18. In an embodiment, theinner shell 14 is welded along the outside of theinner shell 14. In a preferred embodiment, there are fourwelding areas 40 between theinner shell 14 and theinlet flange 18. Theinner shell 14 andinlet flange 18 can then be cleaned (tumbled). - The
inlet flange 18 has acounterbore 20 formed therein as shown inFIG. 7 . Thecounterbore 20 provides a surface within theinlet flange 18 for mating engagement with theouter shell 12 and theinner shell 14. Thecounterbore 20 has a diameter substantially similar to the diameter of theouter shell 12. In an embodiment, theshells counterbore 20 such that there is minimal restriction in fluid flow from theinlet flange 18 into theinner shell 14. In a preferred embodiment, thecounterbore 20 has a tolerance or space allowing for welding of theinner shells 14 to theinlet flange 18. In such an embodiment, the weld of theinner shells 14 to theinlet flange 18 may be welded multiple times, most preferably, four times (e.g. along the four welding areas 17). Theouter shell 12 may be inserted into thecounterbore 20 and welded to theinlet flange 18 as shown inFIG. 7 . - The
outer shell 12 is welded to theoutlet flange 16 as shown inFIG. 6 . In an embodiment, theoutlet flange 16 is slipped or otherwise positioned onto theouter shell 12 and theinner shell 14. Acounterbore 22 in theoutlet flange 16 is sized to correspond to the size of theouter shell 12. Thecounterbore 22 provides a surface within theflange 16 for receiving theinner shell 14 and theouter shell 12. Theshells counterbore 22 such that there is minimal restriction in fluid flow from theinner shell 14 through theoutlet flange 16. Preferably, the diameter of thecounterbore 22 is substantially similar to the diameter of theouter shell 12. Thecounterbore 22 may have a slightly larger diameter to accommodate and/or to provide space for welding theouter shell 12 to theoutlet flange 16. - In an embodiment, the
inner shell 14 is sized for a slip fitjoint connection 23 to theoutlet flange 16. The slip fitjoint connection 23 allows for thermal expansion of theinner shell 14. Preferably, theinner shell 14 is secured to theoutlet flange 16 without welding. In such an embodiment, theouter shell 12 may be welded to theoutlet flange 16 and the weld continued into weld of theportions inner shell 14. - The
outer shells 12 are welded together and to theinlet flange 18 andoutlet flange 16. The present invention does not require stub tubes as utilized in the prior art. Further, the current design is stronger than previous dual-wall exhaust components without additional welding. Because the inner andouter shells outer shell 12 to theinlet flange 18 andoutlet flange 16 is stronger than prior art designs. - The
outer shell 12 and theinner shell 14 are separated and/or spaced apart from each other a controlled amount such that air space or gap is formed between theshells inner shell 14. Specifically, the air can insulate theinner shell 14 from conducting or otherwise transferring heat to theouter shell 12. The amount of space between theshells manifold assembly 10. Thecounterbores flanges shells - As described, the manifold design reduces the number of components utilized in the prior art designs, specifically reducing stub tubes and spacers. The construction allows for thermal growth of inner components and improves the strength and durability of the component. Further, the manufacture is simplified due to few component parts and a less complex construction.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/649,095 US20070180820A1 (en) | 2006-01-03 | 2007-01-03 | Dual wall exhaust manifold and method of making same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US75623806P | 2006-01-03 | 2006-01-03 | |
US11/649,095 US20070180820A1 (en) | 2006-01-03 | 2007-01-03 | Dual wall exhaust manifold and method of making same |
Publications (1)
Publication Number | Publication Date |
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US20070180820A1 true US20070180820A1 (en) | 2007-08-09 |
Family
ID=38256860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/649,095 Abandoned US20070180820A1 (en) | 2006-01-03 | 2007-01-03 | Dual wall exhaust manifold and method of making same |
Country Status (2)
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US (1) | US20070180820A1 (en) |
WO (1) | WO2007081669A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009091540A1 (en) * | 2008-01-14 | 2009-07-23 | Metaldyne Company Llc | Dual-layer to flange welded joint |
US20130098007A1 (en) * | 2011-10-19 | 2013-04-25 | Indmar Products Company Inc. | Combination Liquid-Cooled Exhaust Manifold Assembly and Catalytic Converter Assembly For A Marine Engine |
US8474251B2 (en) | 2010-10-19 | 2013-07-02 | Ford Global Technologies, Llc | Cylinder head cooling system |
US20150152770A1 (en) * | 2012-06-06 | 2015-06-04 | Futaba Industrial Co., Ltd | Exhaust system component |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007062660A1 (en) * | 2007-12-24 | 2009-06-25 | J. Eberspächer GmbH & Co. KG | exhaust manifold |
US20210087963A1 (en) * | 2018-05-15 | 2021-03-25 | Cummins Inc. | Dual-wall integrated flange joint |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3990856A (en) * | 1974-06-28 | 1976-11-09 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Thermal reactor with slidable support for inner core |
US5682741A (en) * | 1995-03-29 | 1997-11-04 | Mercedes-Benz Ag | Exhaust manifold for an internal combustion engine |
US5916137A (en) * | 1995-10-31 | 1999-06-29 | Hayashi; Toshiomi | Method for manufacture of major components for an exhaust system for a motorcar |
US5953912A (en) * | 1996-09-10 | 1999-09-21 | Honda Giken Kobyo Kabushiki Kaisha | Exhaust manifold of a multi-cylinder internal combustion engine |
US6082104A (en) * | 1997-08-08 | 2000-07-04 | Nippon Soken, Inc. | Stainless double tube exhaust manifold |
US6155046A (en) * | 1998-04-20 | 2000-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Heat-insulation type exhaust manifold |
US6247552B1 (en) * | 1994-12-16 | 2001-06-19 | J. Eberspächer Gmbh & Co. | Air gap-insulated exhaust manifold |
US6343417B1 (en) * | 1997-11-28 | 2002-02-05 | Daimler-Benz Aktiengesellschaft | Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system |
US6427440B1 (en) * | 1999-05-21 | 2002-08-06 | Daimlerchrysler Ag | Built-up airgap-insulated exhaust manifold of a motor vehicle and method for producing it |
US6604358B2 (en) * | 2001-05-23 | 2003-08-12 | Daimlerchrysler, Ag | Exhaust manifold |
US6702062B2 (en) * | 2001-03-19 | 2004-03-09 | Mazda Motor Corporation | Exhaust system for automobile engine |
US20050072143A1 (en) * | 2003-10-07 | 2005-04-07 | Friedrich Boysen Gmbh & Co. Kg | Air-gap manifold |
US20050183414A1 (en) * | 2003-12-23 | 2005-08-25 | Wilfried Bien | Exhaust manifold |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5349817A (en) * | 1993-11-12 | 1994-09-27 | Benteler Industries, Inc. | Air gap manifold port flange connection |
-
2007
- 2007-01-03 WO PCT/US2007/000006 patent/WO2007081669A2/en active Application Filing
- 2007-01-03 US US11/649,095 patent/US20070180820A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3990856A (en) * | 1974-06-28 | 1976-11-09 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Thermal reactor with slidable support for inner core |
US6247552B1 (en) * | 1994-12-16 | 2001-06-19 | J. Eberspächer Gmbh & Co. | Air gap-insulated exhaust manifold |
US5682741A (en) * | 1995-03-29 | 1997-11-04 | Mercedes-Benz Ag | Exhaust manifold for an internal combustion engine |
US5916137A (en) * | 1995-10-31 | 1999-06-29 | Hayashi; Toshiomi | Method for manufacture of major components for an exhaust system for a motorcar |
US5953912A (en) * | 1996-09-10 | 1999-09-21 | Honda Giken Kobyo Kabushiki Kaisha | Exhaust manifold of a multi-cylinder internal combustion engine |
US6082104A (en) * | 1997-08-08 | 2000-07-04 | Nippon Soken, Inc. | Stainless double tube exhaust manifold |
US6343417B1 (en) * | 1997-11-28 | 2002-02-05 | Daimler-Benz Aktiengesellschaft | Process of manufacturing an air-gap-insulating exhaust elbow of a vehicle exhaust system |
US6155046A (en) * | 1998-04-20 | 2000-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Heat-insulation type exhaust manifold |
US6427440B1 (en) * | 1999-05-21 | 2002-08-06 | Daimlerchrysler Ag | Built-up airgap-insulated exhaust manifold of a motor vehicle and method for producing it |
US6702062B2 (en) * | 2001-03-19 | 2004-03-09 | Mazda Motor Corporation | Exhaust system for automobile engine |
US6604358B2 (en) * | 2001-05-23 | 2003-08-12 | Daimlerchrysler, Ag | Exhaust manifold |
US20050072143A1 (en) * | 2003-10-07 | 2005-04-07 | Friedrich Boysen Gmbh & Co. Kg | Air-gap manifold |
US20050183414A1 (en) * | 2003-12-23 | 2005-08-25 | Wilfried Bien | Exhaust manifold |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009091540A1 (en) * | 2008-01-14 | 2009-07-23 | Metaldyne Company Llc | Dual-layer to flange welded joint |
US20090188247A1 (en) * | 2008-01-14 | 2009-07-30 | Phillips Jr Robert Arthur | Dual-layer to flange welded joint |
US8656709B2 (en) | 2008-01-14 | 2014-02-25 | Flexible Metal, Inc. | Dual-layer to flange welded joint |
US8474251B2 (en) | 2010-10-19 | 2013-07-02 | Ford Global Technologies, Llc | Cylinder head cooling system |
US20130098007A1 (en) * | 2011-10-19 | 2013-04-25 | Indmar Products Company Inc. | Combination Liquid-Cooled Exhaust Manifold Assembly and Catalytic Converter Assembly For A Marine Engine |
US8650864B2 (en) * | 2011-10-19 | 2014-02-18 | Indmar Products Company Inc. | Combination liquid-cooled exhaust manifold assembly and catalytic converter assembly for a marine engine |
US20150152770A1 (en) * | 2012-06-06 | 2015-06-04 | Futaba Industrial Co., Ltd | Exhaust system component |
Also Published As
Publication number | Publication date |
---|---|
WO2007081669A3 (en) | 2014-12-04 |
WO2007081669A2 (en) | 2007-07-19 |
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