US20160186897A1 - Exhaust system conduit with thermal/noise insulation - Google Patents
Exhaust system conduit with thermal/noise insulation Download PDFInfo
- Publication number
- US20160186897A1 US20160186897A1 US15/043,783 US201615043783A US2016186897A1 US 20160186897 A1 US20160186897 A1 US 20160186897A1 US 201615043783 A US201615043783 A US 201615043783A US 2016186897 A1 US2016186897 A1 US 2016186897A1
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- US
- United States
- Prior art keywords
- conduit
- pipes
- liner
- constructed
- vehicle exhaust
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
-
- 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
- F01N13/14—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
- F01N13/148—Multiple layers of insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/26—Hoses, i.e. flexible pipes made of sound-absorbing materials or with sound-absorbing structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
-
- 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
- F01N2470/12—Tubes being corrugated
Definitions
- This invention relates generally to the field of pipe systems and more particularly to a flexible pipe system such as the type commonly used in vehicular exhaust systems or farm equipment, construction equipment, or other equipment.
- Flexible pipe and conduit structures are used in a variety of applications.
- vehicular exhaust systems make use of flexible conduits in order to accommodate the jarring, vibration and thermal stresses to which the exhaust system is subjected when the vehicle is in use.
- spiral wound flexible pipes suitable for use in vehicular exhaust systems are disclosed in U.S. Pat. No. 6,497,254 to Thomas et al.
- Bellows type systems which provide flexibility by using corrugated conduits are exemplified by U.S. Pat. No. 7,066,495 to Thomas et al.
- the latter patent also discloses an arrangement for interfitting the corrugations on the pipes in a manner to allow relative rotation at the pipe joints.
- the present invention is directed to a flexible conduit system which may be used in a variety of applications, including in an exhaust system for an engine used on vehicles, farm equipment, construction equipment or other equipment.
- a conduit which is used to couple together a pair of pipes is constructed with a corrugated outer portion, an inside portion which may be a spirally wound strip with interlocked edges, and a layer of insulation sandwiched between the inside and outside portions.
- the insulation layer may be constructed of any suitable material that is effective to suppress noise transmission within the conduit and to resist heat transmission. Additionally, the insulation provides a barrier that dampens vibration and prevents the inside and outside layers of the pipe from physically contacting each other. As a consequence, the conduit and the joints it makes with other pipe exhibit improved noise control, reduced heat transmission, diminished vibration, and enhanced structural capabilities.
- the conduit provides particular utility as a joint between two other pipes, and the joint may be constructed as either a torsional joint or a non-torsional joint depending upon the application.
- FIG. 1 is a sectional view showing a conduit constructed according to one preferred embodiment of the present invention, with the conduit having a configuration to provide a torsional joint between a pair of pipes;
- FIG. 2 is a fragmentary sectional view on an enlarged scale of the detail identified at 2 - 2 in FIG. 1 ;
- FIG. 3 is a sectional view of a conduit constructed according to another embodiment of the present invention, with the conduit arranged to provide a non-torsional joint;
- FIG. 4 is a fragmentary sectional view on an enlarged scale of the detail identified at 4 - 4 in FIG. 3 .
- conduit 10 generally designates a conduit which is constructed according to one embodiment of the present invention.
- the conduit 10 may couple together a pair of pipes 12 and 14 .
- the conduit 10 and the pipes 12 and 14 may be parts of a vehicular exhaust system through which exhaust gases flow.
- the conduit 10 has an inner cylindrical liner portion 16 which may be constructed as a flexible conduit formed by a spirally wound strip 18 having edges of adjacent windings interlocked in the manner described in U.S. Pat. No. 6,427,727 to Thomas which is incorporated by reference.
- the liner portion 16 has a flexible construction which allows it to flex in a manner to withstand the forces that are applied to it in service.
- the liner portion 16 provides a cylindrical bore 20 through which the hot vehicular exhaust gases pass from pipe 12 to pipe 14 , as shown by the directional arrow 22 in FIG. 1 .
- An outer portion of the conduit 10 is formed by a bellows 24 which extends around the liner 16 and has a plurality of corrugations 26 on its outer surface.
- the bellows 24 may be constructed in the manner disclosed in U.S. Pat. No. 7,066,495 to Thomas et al. which is incorporated by reference.
- the outer portion of conduit 10 may be constructed as a braided structure, an interlock flexible hose or in another manner providing flexibility to the conduit.
- a cylindrical insulation blanket 28 is sandwiched between the inside conduit 16 and the bellows 24 .
- the layer or blanket 28 may be constructed of any material that is effective to attenuate noise, resist heat transmission, and/or dampen vibration.
- One material that is satisfactory for the blanket 28 is commercially available silica fiber insulation. However, additional materials having the necessary characteristics can also be used.
- the blanket 28 is enclosed within the conduit structure provided by the bellows 24 on the outside and the inside liner 16 on the inside.
- the conduit 10 may be equipped with a pair of end fittings 30 and 32 which are located on the opposite ends of the conduit 10 .
- Fitting 30 has at least one exterior corrugation 34 that interfits with a mating corrugation 26 on or near the end of the bellows 24 .
- fitting 30 has at least one corrugation 36 that interfits with a mating corrugation 26 on or near the opposite end of the bellows 24 .
- This allows fitting 32 to rotate relative to bellows 24 similarly to fitting 30 .
- Pipes 12 and 14 may be connected to the respective fittings 30 and 32 by welding or in any other suitable matter. In this way, the pipes 12 and 14 are allowed to rotate relative to the conduit 10 to relieve torsional stresses that may be applied to the pipe structure during use.
- the flexibility provided by the strip wound inside liner portion 16 and the outer bellows 24 accommodates jolting, vibration and thermal stresses to which the exhaust system is subjected.
- the torsional joint provided by the rotary connections of the fittings 30 and 32 enables the pipe system to withstand rotary or torsional loads without undue stress.
- the insulation blanket 28 is of particular importance because it reduces the noise that is generated within the piping system as the vehicle operates and hot exhaust gases flow through the pipes 12 and 14 and the conduit 10 .
- the thermal insulation provided by the blanket 28 reduces the heat transmission from the inside to the outside of the conduit 10 , and the corrugations 26 act as cooling fins to dissipate the heat from the bellows 24 .
- the insulation 28 also serves to dampen vibration of the pipe system and thus reduces the fatigue forces that can weaken pipe systems of this type over prolong periods of operation.
- conduit 110 generally identifies a conduit constructed according to a second embodiment of the invention.
- the conduit 110 is used to connect a pair of pipes 112 and 114 which may be part of a vehicular exhaust system or another type of pipe system.
- the conduit 110 has an inside liner 116 which may be a spirally wound strip 118 interconnected at its edges in the manner described previously for conduit 16 .
- the liner 116 provides a cylindrical bore 120 aligned with the bores of pipes 112 and 114 to accommodate the flow of materials such as hot exhaust gases from pipe 112 to pipe 114 .
- An outer portion of the conduit 110 is provided by a bellows 124 having a plurality of corrugations 126 on its outside surface.
- the bellows 124 may be constructed generally in the same manner as bellows 24 .
- An insulation blanket 128 is enclosed within conduit 110 between the inside liner 116 and bellows 124 .
- the blanket 128 serves the same function as blanket 28 and may be constructed of the same materials and in a similar cylindrical configuration.
- a flexible cover 129 may be used to closely cover the entirety of the conduit 110 .
- the cover 129 may be secured in place by any suitable means and may be constructed of any suitable material, preferably wire braid.
- the conduit 110 is provided with end flanges 130 and 132 which may be integral with the inside tube 116 and/or the bellows 124 .
- the end fittings 130 and 132 are cylindrical and provide a convenient means for attaching conduit 110 to the pipes 112 and 114 , as by welding the pipes to the end fittings.
- the conduit 110 provides a non-torsional joint between the pipes 112 and 114 .
- the insulation blanket 128 provides the same noise attenuation, heat resistance and vibration dampening as blanket 28 when the pipe system is in service as a vehicular exhaust system or otherwise.
Abstract
A flexible conduit for use in a pipe system such as a vehicular exhaust system to provide a torsional or non-torsional joint between two pipes. The conduit has an outer bellows and an inner liner between which a layer of noise/thermal insulation is sandwiched to attenuate noise, resist thermal transmission and dampen vibration.
Description
- This application claims priority to and is a divisional application under 35 U.S.C. §121 of U.S. patent application Ser. No. 12/568,630, now U.S. Pat. No. 9,261,216, which was filed on Sep. 29, 2009 and is expressly incorporated herein by reference.
- This invention relates generally to the field of pipe systems and more particularly to a flexible pipe system such as the type commonly used in vehicular exhaust systems or farm equipment, construction equipment, or other equipment.
- Flexible pipe and conduit structures are used in a variety of applications. For example, vehicular exhaust systems make use of flexible conduits in order to accommodate the jarring, vibration and thermal stresses to which the exhaust system is subjected when the vehicle is in use. Examples of spiral wound flexible pipes suitable for use in vehicular exhaust systems are disclosed in U.S. Pat. No. 6,497,254 to Thomas et al. Bellows type systems which provide flexibility by using corrugated conduits are exemplified by U.S. Pat. No. 7,066,495 to Thomas et al. The latter patent also discloses an arrangement for interfitting the corrugations on the pipes in a manner to allow relative rotation at the pipe joints.
- These prior art exhaust systems function in a generally satisfactory manner for the most part. The flexibility of the pipes allows them to withstand the forces that are applied due to jolts, vibrations and thermal stresses. The rotary or torsional joint is especially beneficial in many applications because it is able to accommodate torsional loading without unduly stressing the pipes. Even so, the prior art exhaust systems of this type have not been completely free of problems.
- In particular, the vibration and other movement creates substantial noise which can be aggravated by the hot exhaust gases going through the pipes. Additionally, the heat from the exhaust gases causes the outside surfaces of the pipes to reach temperatures that can be high enough to create undue heat stress on the piping and safety hazards if contacted by persons. These noise and heat problems have not been successfully addressed and have been increasing causes for concern due to the increasing emphasis that has been placed on controlling noise pollution and increasing concern with safety considerations.
- The present invention is directed to a flexible conduit system which may be used in a variety of applications, including in an exhaust system for an engine used on vehicles, farm equipment, construction equipment or other equipment. In accordance with the invention, a conduit which is used to couple together a pair of pipes is constructed with a corrugated outer portion, an inside portion which may be a spirally wound strip with interlocked edges, and a layer of insulation sandwiched between the inside and outside portions.
- The insulation layer may be constructed of any suitable material that is effective to suppress noise transmission within the conduit and to resist heat transmission. Additionally, the insulation provides a barrier that dampens vibration and prevents the inside and outside layers of the pipe from physically contacting each other. As a consequence, the conduit and the joints it makes with other pipe exhibit improved noise control, reduced heat transmission, diminished vibration, and enhanced structural capabilities. The conduit provides particular utility as a joint between two other pipes, and the joint may be constructed as either a torsional joint or a non-torsional joint depending upon the application.
- Other and further objects of the invention, together with the features of novelty appurtenant thereto, will appear in the course of the following description.
- In the accompanying drawings, which form a part of the specification and are to be read in conjunction therewith in which like reference numerals are used to indicate like or similar parts in the various views:
-
FIG. 1 is a sectional view showing a conduit constructed according to one preferred embodiment of the present invention, with the conduit having a configuration to provide a torsional joint between a pair of pipes; -
FIG. 2 is a fragmentary sectional view on an enlarged scale of the detail identified at 2-2 inFIG. 1 ; -
FIG. 3 is a sectional view of a conduit constructed according to another embodiment of the present invention, with the conduit arranged to provide a non-torsional joint; and -
FIG. 4 is a fragmentary sectional view on an enlarged scale of the detail identified at 4-4 inFIG. 3 . - Referring now to the drawings in more detail and initially to
FIG. 1 ,numeral 10 generally designates a conduit which is constructed according to one embodiment of the present invention. Theconduit 10 may couple together a pair ofpipes conduit 10 and thepipes - The
conduit 10 has an innercylindrical liner portion 16 which may be constructed as a flexible conduit formed by a spirallywound strip 18 having edges of adjacent windings interlocked in the manner described in U.S. Pat. No. 6,427,727 to Thomas which is incorporated by reference. Theliner portion 16 has a flexible construction which allows it to flex in a manner to withstand the forces that are applied to it in service. Theliner portion 16 provides acylindrical bore 20 through which the hot vehicular exhaust gases pass frompipe 12 topipe 14, as shown by thedirectional arrow 22 inFIG. 1 . - An outer portion of the
conduit 10 is formed by abellows 24 which extends around theliner 16 and has a plurality ofcorrugations 26 on its outer surface. Thebellows 24 may be constructed in the manner disclosed in U.S. Pat. No. 7,066,495 to Thomas et al. which is incorporated by reference. Alternatively, the outer portion ofconduit 10 may be constructed as a braided structure, an interlock flexible hose or in another manner providing flexibility to the conduit. - A
cylindrical insulation blanket 28 is sandwiched between theinside conduit 16 and thebellows 24. The layer orblanket 28 may be constructed of any material that is effective to attenuate noise, resist heat transmission, and/or dampen vibration. One material that is satisfactory for theblanket 28 is commercially available silica fiber insulation. However, additional materials having the necessary characteristics can also be used. Theblanket 28 is enclosed within the conduit structure provided by thebellows 24 on the outside and theinside liner 16 on the inside. Theconduit 10 may be equipped with a pair ofend fittings conduit 10. Fitting 30 has at least oneexterior corrugation 34 that interfits with amating corrugation 26 on or near the end of thebellows 24. The fit between these corrugations allow the fitting 30 to rotate relative to thebellows 24 with the corrugations continuing to mate during such rotation in order to maintain the integrity of the rotary or torsional joint. Similarly, fitting 32 has at least onecorrugation 36 that interfits with amating corrugation 26 on or near the opposite end of thebellows 24. This allows fitting 32 to rotate relative tobellows 24 similarly to fitting 30.Pipes respective fittings pipes conduit 10 to relieve torsional stresses that may be applied to the pipe structure during use. - When the
conduit 10 is used in a vehicular exhaust system, the flexibility provided by the strip wound insideliner portion 16 and theouter bellows 24 accommodates jolting, vibration and thermal stresses to which the exhaust system is subjected. The torsional joint provided by the rotary connections of thefittings - The
insulation blanket 28 is of particular importance because it reduces the noise that is generated within the piping system as the vehicle operates and hot exhaust gases flow through thepipes conduit 10. At the same time, the thermal insulation provided by theblanket 28 reduces the heat transmission from the inside to the outside of theconduit 10, and thecorrugations 26 act as cooling fins to dissipate the heat from thebellows 24. Theinsulation 28 also serves to dampen vibration of the pipe system and thus reduces the fatigue forces that can weaken pipe systems of this type over prolong periods of operation. - Referring now to
FIG. 3 ,numeral 110 generally identifies a conduit constructed according to a second embodiment of the invention. Theconduit 110 is used to connect a pair ofpipes - The
conduit 110 has aninside liner 116 which may be aspirally wound strip 118 interconnected at its edges in the manner described previously forconduit 16. Theliner 116 provides acylindrical bore 120 aligned with the bores ofpipes pipe 112 topipe 114. - An outer portion of the
conduit 110 is provided by abellows 124 having a plurality ofcorrugations 126 on its outside surface. Thebellows 124 may be constructed generally in the same manner as bellows 24. - An
insulation blanket 128 is enclosed withinconduit 110 between theinside liner 116 and bellows 124. Theblanket 128 serves the same function asblanket 28 and may be constructed of the same materials and in a similar cylindrical configuration. - As best shown in
FIG. 4 , aflexible cover 129 may be used to closely cover the entirety of theconduit 110. Thecover 129 may be secured in place by any suitable means and may be constructed of any suitable material, preferably wire braid. - The
conduit 110 is provided withend flanges inside tube 116 and/or thebellows 124. Theend fittings conduit 110 to thepipes - In the embodiment of
FIGS. 3 and 4 , theconduit 110 provides a non-torsional joint between thepipes insulation blanket 128 provides the same noise attenuation, heat resistance and vibration dampening asblanket 28 when the pipe system is in service as a vehicular exhaust system or otherwise. - From the foregoing it will be seen that this invention is one well adapted to attain all ends and objects hereinabove set forth together with the other advantages which are obvious and which are inherent to the structure.
- It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.
- Since many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative, and not in a limiting sense.
Claims (8)
1. A flexible conduit structure for coupling first and second pipes, comprising:
a conduit having first and second ends for connection with said first and second pipes, respectively;
an outside portion of said conduit constructed in a manner to provide flexibility to said conduit;
an inside portion of said conduit connected to said outside portion and arranged to provide a bore through said conduit for the passage of fluid therethrough; and
an insulation blanket sandwiched between said outside and inside portions, said blanket being constructed to suppress noise and heat transmission from within said conduit.
2. A conduit structure as set forth in claim 1 , including a covering substantially surrounding said outside portion of said conduit.
3. In a vehicle exhaust system, the combination of:
first and second pipes and a conduit extending between and coupled with said first and second pipes;
an outside portion of said conduit having a plurality of corrugations to accommodate flexing of said conduit;
a liner on said conduit providing a flow channel through which vehicle exhaust gases can flow, said liner being connected with said outer portion of said conduit; and
an insulation blanket sandwiched between said liner and said outside portion of said conduit, said blanket being constructed of a material effective to suppress noise and heat transmission from within said conduit.
4. The combination of claim 3 , wherein said liner comprises a metal strip arranged in a helical winding.
5. The combination of claim 3 , including a covering substantially surrounding said conduit.
6. The combination of claim 5 , wherein said covering comprises a wire braid.
7. A flexible conduit structure for a vehicle exhaust system, comprising:
a conduit having a liner forming a flow passage for flow of vehicle exhaust gases therethrough and an outer corrugation body having a plurality of corrugations to provide flexibility of said conduit;
a pair of end fittings on opposite ends of said conduit for connection to respective pipes between which said flow passage directs vehicle exhaust gases; and
a layer of insulation between said liner and said corrugated body constructed and arranged to suppress noise and heat transmission from within said conduit.
8. A conduit structure as set forth in claim 7 , including a covering substantially enclosing said conduit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/043,783 US20160186897A1 (en) | 2009-09-29 | 2016-02-15 | Exhaust system conduit with thermal/noise insulation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/569,630 US9261216B2 (en) | 2009-09-29 | 2009-09-29 | Exhaust system conduit with thermal/noise insulation |
US15/043,783 US20160186897A1 (en) | 2009-09-29 | 2016-02-15 | Exhaust system conduit with thermal/noise insulation |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/569,630 Division US9261216B2 (en) | 2009-09-29 | 2009-09-29 | Exhaust system conduit with thermal/noise insulation |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160186897A1 true US20160186897A1 (en) | 2016-06-30 |
Family
ID=43297084
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/569,630 Active 2032-03-12 US9261216B2 (en) | 2009-09-29 | 2009-09-29 | Exhaust system conduit with thermal/noise insulation |
US15/043,783 Abandoned US20160186897A1 (en) | 2009-09-29 | 2016-02-15 | Exhaust system conduit with thermal/noise insulation |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/569,630 Active 2032-03-12 US9261216B2 (en) | 2009-09-29 | 2009-09-29 | Exhaust system conduit with thermal/noise insulation |
Country Status (3)
Country | Link |
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US (2) | US9261216B2 (en) |
EP (1) | EP2302275A1 (en) |
CA (2) | CA2714750C (en) |
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US10704728B2 (en) | 2018-03-20 | 2020-07-07 | Ina Acquisition Corp. | Pipe liner and method of making same |
US11173634B2 (en) | 2018-02-01 | 2021-11-16 | Ina Acquisition Corp | Electromagnetic radiation curable pipe liner and method of making and installing the same |
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DE102010037162B4 (en) * | 2009-08-31 | 2018-05-03 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Damping element for decoupling elements, in particular for diaphragm bellows |
US20120112452A1 (en) * | 2010-11-09 | 2012-05-10 | Stalcup Ii Robert Franklin | Compressible exhaust connection member |
US8100315B1 (en) * | 2011-07-11 | 2012-01-24 | Tennco Automotive Operating Company Inc. | Method of insulating an exhaust device |
CN103133812A (en) * | 2013-03-26 | 2013-06-05 | 江苏亚星波纹管有限公司 | Novel pipeline compensator |
US9970578B2 (en) | 2014-07-02 | 2018-05-15 | American Boa, Inc. | Dynamic liner sleeve for flexible coupling |
EP3091267B1 (en) | 2015-05-04 | 2020-05-27 | Sjm Co., Ltd. | Flexible conduit element |
LU92766B1 (en) | 2015-07-09 | 2017-01-30 | Wurth Paul Sa | Bellow compensator |
EP3322930A1 (en) * | 2015-07-13 | 2018-05-23 | Exotic Metals Forming Company LLC | Flexible joint assembly for high or low temperature fluid systems |
CN106014582B (en) * | 2016-06-15 | 2019-01-15 | 宁波菲力克汽配有限公司 | A kind of damping flexible pipe |
US10995650B2 (en) | 2017-03-03 | 2021-05-04 | Cummins Inc. | Heat shield for bellows |
CN110118498A (en) * | 2019-05-23 | 2019-08-13 | 中国科学院理化技术研究所 | A kind of cryogenic heat transfer device and cryogenic heat transfer system |
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2009
- 2009-09-29 US US12/569,630 patent/US9261216B2/en active Active
-
2010
- 2010-09-15 CA CA2714750A patent/CA2714750C/en active Active
- 2010-09-15 CA CA2986714A patent/CA2986714A1/en not_active Abandoned
- 2010-09-23 EP EP10179025A patent/EP2302275A1/en not_active Withdrawn
-
2016
- 2016-02-15 US US15/043,783 patent/US20160186897A1/en not_active Abandoned
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11173634B2 (en) | 2018-02-01 | 2021-11-16 | Ina Acquisition Corp | Electromagnetic radiation curable pipe liner and method of making and installing the same |
US10704728B2 (en) | 2018-03-20 | 2020-07-07 | Ina Acquisition Corp. | Pipe liner and method of making same |
US11384889B2 (en) | 2018-03-20 | 2022-07-12 | Ina Acquisition Corp. | Pipe liner and method of making and installing the same |
Also Published As
Publication number | Publication date |
---|---|
CA2714750C (en) | 2018-01-09 |
CA2986714A1 (en) | 2011-03-29 |
US20110074147A1 (en) | 2011-03-31 |
US9261216B2 (en) | 2016-02-16 |
EP2302275A1 (en) | 2011-03-30 |
CA2714750A1 (en) | 2011-03-29 |
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