WO2007135722A1 - 球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 - Google Patents
球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 Download PDFInfo
- Publication number
- WO2007135722A1 WO2007135722A1 PCT/JP2006/310066 JP2006310066W WO2007135722A1 WO 2007135722 A1 WO2007135722 A1 WO 2007135722A1 JP 2006310066 W JP2006310066 W JP 2006310066W WO 2007135722 A1 WO2007135722 A1 WO 2007135722A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wax
- spherical
- exhaust pipe
- heat
- resistant material
- Prior art date
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Classifications
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- 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
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- 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
- F01N13/1827—Sealings specially adapted for exhaust systems
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
- F16J15/0812—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment with a braided or knitted body
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/126—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement consisting of additions, e.g. metallic fibres, metallic powders, randomly dispersed in the packing
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
- F16L27/073—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces one of the cooperating surfaces forming the sealing means
Definitions
- the present invention relates to a ball-shaped seal body, an exhaust pipe joint device for an automobile using the same, and a method for manufacturing the ball-shaped seal body.
- Patent Document 1 Japanese Patent Publication No. 58-21144
- such a spherical pipe joint is slidably in contact with the partially concave spherical inner surface of the flange member fixed to the end of the downstream exhaust pipe at the partially convex spherical outer surface.
- the cylindrical inner surface is used by being fitted to the outer surface of the pipe end of the upstream side exhaust pipe, and the stress is absorbed by the relative sliding of the partially convex spherical outer surface with respect to the partially concave spherical inner surface of the flange member.
- the torsion direction (the pipe axis of the exhaust pipe) This force is also input to the exhaust pipe joint device.
- stick slip occurs between the cylindrical inner surface of the spherical pipe joints fitted to each other and the pipe end of the upstream exhaust pipe. The resulting abnormal noise causes discomfort to the driver and passenger of the car.
- the present invention has been made in view of the above-described points, and an object of the present invention is to reliably fix the ball-shaped seal body to the pipe end portion of the upstream side exhaust pipe, and to the downstream side. Even when the exhaust pipe force is input to the ball-shaped seal body in the torsional direction (rotating direction), it is caused by stick-slip or the like between the cylindrical inner surface fitted to each other and the pipe end of the upstream exhaust pipe. A ball-shaped seal body that does not cause discomfort to the driver who does not generate an abnormal noise, an automobile exhaust pipe joint device using the same, and such a ball-shaped seal body are easily produced in a short time. An object of the present invention is to provide a manufacturing method that can be used.
- a spherical belt-shaped sealing body includes a spherical belt-shaped substrate defined by a cylindrical inner surface, a partially convex spherical outer surface, and large-diameter and small-diameter annular end surfaces of the partially convex spherical outer surface, and the spherical belt-shaped substrate. And an inflatable annular coating layer integrally formed on the inner surface of the cylinder.
- the coating layer is a mixture of acid-treated graphite and wax.
- the spherical belt-shaped sealing body of the present invention is formed integrally with the cylindrical inner surface of the spherical belt-shaped substrate, and includes an annular coating layer made of a mixture of acid-treated graphite and wax capable of thermal expansion. Therefore, such a spherical belt-like seal body is fitted to the outer surface of the pipe end portion of the upstream side exhaust pipe at the annular inner surface of the coating layer, and is connected to the upstream side exhaust pipe at the annular end surface on the large diameter side of the spherical belt-like substrate.
- the elastic coupling means is brought into contact with the fixed flange and is slidably brought into contact with the partially concave spherical inner surface of the seal seat member fixed to the downstream exhaust pipe at the partially convex spherical outer surface of the spherical base.
- the cylinder of the spherical base body is heated by the heat of the exhaust gas flowing in the exhaust pipe.
- a heat-resistant material containing expanded graphite and a reinforcing material made of a metal mesh are compression-molded, and the heat-resistant material is a reinforcing material made of a metal mesh. What is filled in the gap between the materials is preferred.
- the exhaust pipe joint device of the present invention includes an upstream exhaust pipe, a downstream exhaust pipe having an end face opposed to the end face of the upstream exhaust pipe, and a pipe end of the upstream exhaust pipe.
- Relative angle between the flange fixed to the outer surface of the part, the seal seat member fixed to the pipe end of the downstream exhaust pipe and having a partially concave spherical inner surface, the upstream exhaust pipe and the downstream exhaust pipe Elastically connecting means that is inertially connected to the displacement itself, and the above-described spherical belt-shaped seal body, wherein the spherical belt-shaped seal body is upstream of the inner surface of the annular coating layer.
- the partially concave spherical inner surface of the seal seat member in which the spherical belt-shaped sealing body is fixed to the pipe end of the downstream exhaust pipe at the partial convex spherical outer surface of the spherical belt-shaped base.
- the seal between the upstream side exhaust pipe and the downstream side exhaust pipe is dense between the partially convex spherical outer surface of the spherical base and the partially concave spherical inner surface of the seal seat member.
- the contact is caused by the contact between the annular end surface on the large-diameter side of the spherical base and the flange.
- the exhaust pipe joint device of the present invention the heat of the exhaust gas flowing in the exhaust pipe is absorbed.
- a thermally expandable annular coating layer integrally formed on the inner surface of the cylindrical body of the spherical belt-shaped base expands to tighten the pipe end of the upstream exhaust pipe, and the spherical belt-shaped sealing body and the upstream exhaust pipe
- the ball-shaped seal body can be securely fixed to the pipe end of the upstream exhaust pipe, and the torsional direction (rotation) from the downstream exhaust pipe to the ball-shaped seal body Direction), the sliding between the inner surface of the annular coating layer and the outer surface of the pipe end of the upstream exhaust pipe and between the annular end surface of the large-diameter side of the spherical base and the flange.
- a spherical base defined by a cylindrical inner surface, a partially convex spherical outer surface, and annular end surfaces on the large diameter side and small diameter side of the partially convex spherical outer surface, and an annular coating layer that is thermally expandable on the cylindrical inner surface of the spherical belt base
- the method of manufacturing a spherical belt-shaped sealing body of the present invention particularly used for an exhaust pipe joint includes a step of preparing a heat-resistant material made of a sheet containing expanded graphite, and one end of the heat-resistant material on its end.
- the ball-shaped base member is formed by compressing a heat-resistant material containing expanded graphite and a reinforcing material made of a wire mesh, and intertwining each other. Reinforcing material made of a compressed wire mesh The reinforcing material is filled with a wire mesh, heat-resistant material containing expanded black lead that is mixed and integrated with parenthesis reinforcements, and the cylindrical inner surface has a compressed expansion.
- Acid treatment before treatment A thermally expandable annular coating layer made of a mixture of graphite and wax is formed to be exposed to the outside in the through hole.
- the acid-treated graphite powder one produced by the following production method is preferably used. While stirring concentrated sulfuric acid with a concentration of 98%, a predetermined amount of a 60% aqueous solution of hydrogen peroxide was added as an oxidizing agent to prepare a reaction solution, and a predetermined amount of scaly natural graphite powder was added to the reaction solution. Perform time reaction. After the reaction, the acid-treated graphite powder is separated by suction filtration, and the washing operation of stirring the acid-treated graphite powder with water for a predetermined time and suction-filtering is repeated to sufficiently remove the sulfuric acid content from the acid-treated graphite powder.
- the acid-treated graphite powder from which sulfuric acid has been sufficiently removed is dried in a drying furnace to obtain an acid-treated graphite powder.
- the acid-treated graphite powder thus obtained has a property of expanding and expanding between graphite layers under the influence of heat.
- a coating layer capable of thermal expansion over a predetermined length in the length direction from one end of one surface of a heat-resistant material comprising a sheet containing expanded graphite Since the acid-treated graphite and wax are mixed in the form of a powder, it is applied by spraying on the surface of the heat-resistant material made of a sheet containing expanded graphite, making it easy to adjust the amount of spraying and extremely easy to work with. It becomes good. Further, since the melting point of wax is a relatively low temperature of 50 to 150 ° C., the final coating layer can be produced in a short time.
- the mixing ratio of the acid-treated graphite and the wax in the coating layer is such that the weight of the wax is in the range of 0.2 to 1.5 times the weight of the acid-treated graphite.
- the wax acts as an adhesive when the coating layer made of the mixture is pressure-bonded to the surface of the heat-resistant material made of a sheet containing expanded graphite. It is sufficient with an adhesive force that does not cause the coating layer to fall off before being incorporated into the film.
- a hydrocarbon wax having a melting point of 50 to 150 ° C is preferably used as the wax forming the annular coating layer.
- Paraffin wax extracted from oil components mainly straight-chain hydrocarbons having 20 to 40 carbon atoms
- petroleum heavy lubricating oil fractional force Extracted microcrystalline box (30 to 60 carbon atoms)
- Petroleum wax or physics examples include shear tropush wax (mainly hydrocarbons having 17 to 78 carbon atoms) or synthetic waxes such as polyolefin wax such as polyethylene wax and polypropylene wax, and one or two of them. The above can be used in combination.
- the ball-shaped seal body can be securely fixed to the pipe end portion of the upstream side exhaust pipe, and the downstream exhaust pipe force is also subjected to a twisting direction (rotational direction) force on the ball-shaped seal body. Even if it is input, it does not cause abnormal noise due to stick-slip, etc., and it does not give passengers discomfort, a ball-shaped seal body and an exhaust pipe joint device for an automobile using the same. Can be provided.
- a spherical belt-shaped seal body provided with an annular coating layer capable of thermal expansion on the cylindrical inner surface of the spherical belt-shaped substrate can be easily produced in a short time.
- FIG. 1 is a longitudinal sectional view showing a spherical belt-shaped sealing body of the present invention
- FIG. 2 is an explanatory view of a method of forming a reinforcing material in the manufacturing process of the spherical belt-shaped sealing body of the present invention
- FIG. 3 is a perspective view of the heat-resistant material in the manufacturing process of the spherical belt-shaped sealing body of the present invention
- FIG. 4 is a perspective view of the heat-resistant material and the coating forming layer in the manufacturing process of the spherical belt-shaped sealing body of the present invention.
- FIG. 5 is a perspective view of the polymer in the manufacturing process of the spherical belt-shaped sealing body of the present invention
- FIG. 6 is a plan view of the cylindrical base material in the manufacturing process of the spherical belt-shaped sealing body of the present invention
- FIG. 8 is a longitudinal sectional view showing a state in which the cylindrical base material is inserted into the mold in the manufacturing process of the ball-shaped seal body of the present invention.
- FIG. 9 is a longitudinal sectional view of an exhaust pipe joint device incorporating the ball-shaped seal body of the present invention.
- the above acid-treated graphite powder is prepared separately, and the acid-treated graphite powder before the expansion treatment is heated (expanded) for 1 to L0 seconds at a temperature of 950 to 1200 ° C. to generate decomposition gas,
- the graphite layer is expanded by gas pressure to form expanded graphite particles (expansion magnification: 200 to 300 times).
- the expanded graphite particles are roll-formed with a twin roller device to produce an expanded graphite sheet having a desired thickness, and this expanded graphite sheet is used as a heat-resistant material.
- Reinforcing materials are stainless steel wire such as austenitic SUS304, SUS316, ferritic SU S430 or iron wire (JIS-G-3532) or zinc-plated iron wire (JI SG-3547) or copper-nickel as copper Wire mesh formed by weaving or knitting one or more metal wires that can be used for alloy (white copper) wires, copper-nickel-zinc alloy (white and white) wires, brass wires, and beryllium copper wires Is used.
- the wire diameter of the fine metal wire forming the wire mesh is preferably about 0.1 to 0.32 mm, and the wire mesh of about 3 to 6 mm is used.
- a strip metal mesh 4 having a predetermined width D is produced by passing a cylindrical metal mesh 1 formed by knitting a thin metal wire into a cylindrical shape between the rollers 2 and 3. Then, a reinforcing member 5 is prepared by cutting the belt-like wire mesh 4 into a predetermined length L.
- the width of the reinforcing material 5 is 1. 10 XD force 2.10 XD width d and the length 5 of the reinforcing material 5 1.
- Acid-treated graphite powder and wax powder are prepared, and 0.2 to 1.5 times the weight of wax powder is weighed with respect to the weight of the acid-treated graphite powder. Mix to make a mixture (mixed powder).
- wax powder hydrocarbon wax, specifically, paraffin wax, microcrystalline wax, Fischer-Tropush wax, or poly-type refin wax is used alone or in combination.
- the heat-resistant material 6 is entirely formed on the large-diameter end face 25 which is an annular end face on at least one end edge side in the axial direction of the partially convex spherical outer face 24. As shown in FIG. 5, as shown in FIG.
- Heat resistant material 6 protrudes in the width direction by 8 XD, and the amount of protrusion of the heat resistant material 6 from the edge 8 in the width direction ⁇ 1 is the partial diameter of the outer surface of the convex spherical outer surface.
- the amount of protrusion from the other edge 9 is greater than ⁇ 2, and one edge in the length direction of the reinforcement 5 10 force 0.30 XL force 1.
- the cylindrical base material 14 is formed in which the heat-resistant material 6 is exposed over the entire circumference on the outer circumference side.
- the heat-resistant material 6 is 1.30 XL force 2.70 against the length L of the reinforcing material 5 so that the number of windings of the heat-resistant material 6 in the cylindrical base material 14 is larger than the number of windings of the reinforcing material 5.
- the one with XL length 1 is prepared in advance. In the cylindrical base material 14, as shown in FIG.
- the heat-resistant material 6 protrudes from the one edge 8 of the reinforcing material 5 by ⁇ 1 in the width direction on one edge side in the width direction, and
- the other end edge 9 in the width direction of the heat-resistant material 6 protrudes from the other end edge 9 of the reinforcing material 5 by ⁇ 2 in the width direction.
- the inner surface is provided with a cylindrical wall surface 15, a partially concave spherical wall surface 16 continuous with the cylindrical wall surface 15, and a through hole 17 continuous with the partially concave spherical wall surface 16.
- a mold 21 as shown in FIG. 8 in which a hollow cylindrical portion 19 and a spherical belt-shaped hollow portion 20 connected to the hollow cylindrical portion 19 and a hollow force portion are formed is prepared. Insert cylindrical base material 14 into 21 stepped cores 18.
- a cylindrical base material 14 positioned in a hollow portion including a hollow cylindrical portion 19 and a spherical belt-shaped hollow portion 20 of a mold 21 is compression-molded at a pressure of 1 to 3 tons Zcm 2 in the core axial direction.
- a spherical belt-like substrate 27 having a cylindrical inner surface 23, a partially convex spherical outer surface 24, and annular end surfaces 25 and 26 on the large-diameter side and small-diameter side of the partial convex spherical outer surface 24, as shown in FIG.
- a thermally expandable annular coating layer 29 that also has a mixture force of acid-treated graphite and wax formed integrally with the inner surface 23 of the cylinder.
- the ball-shaped seal body 28 produced by this compression molding has a cylindrical inner surface 23, a partially convex spherical outer surface 24, and annular end surfaces 25 and 26 on the large diameter side and small diameter side of the partial convex spherical outer surface 24.
- the spherical belt-like base body 27 is further defined, and a thermally expandable annular coating layer 29 formed integrally with the cylindrical inner surface 23 of the spherical belt-like base body 27.
- the reinforcing material 5 made of wire mesh are compressed and entangled with each other to have structural integrity, and the compressed reinforcing material 5 and the mesh of the reinforcing mesh 5 can only be filled.
- a thermally expandable annular coating layer 29 that also has a mixture force of the compressed acid-treated graphite and wax before the expansion treatment is exposed to the outside through the through hole 22.
- the heat-resistant material 6 is intertwined with the reinforcing material 5 made of a wire mesh that forms the internal structure, and is partially convex.
- the outer surface 24 is formed on a smooth surface of the heat-resistant material 6 having an expanded graphite force, and the annular end surface 25 on the large diameter side and the annular end surface 26 on the small diameter side of the partially convex spherical outer surface 24 are reinforced.
- Refractory material 6 that protrudes from the material 5 in the width direction is expanded and expanded by bending and extending the large-diameter annular end surface 25 and the small-diameter annular end surface 26 of the partially convex spherical outer surface 24. Covered with strong heat-resistant material 6
- Such a spherical belt-like seal body 28 is used in an exhaust pipe joint device 30 as shown in FIG.
- the exhaust pipe coupling device 30 includes an upstream exhaust pipe 31 connected to the engine side, and a downstream flow connected to the atmosphere side having an end face 32 that faces the end face 32 of the upstream exhaust pipe 31 and leaves a gap 33.
- Side exhaust pipe 35, flange 37 fixed to the outer surface of the pipe end portion 36 of the upstream side exhaust pipe 31 by welding or the like, and the outer surface of the pipe end portion 38 of the downstream side exhaust pipe 35 to the outer surface of the pipe end portion 36 by welding or the like.
- a seal seat member 40 having a partially concave spherical inner surface 39, an elastic connecting means 41 for elastically connecting the upstream exhaust pipe 31 and the downstream exhaust pipe 35 to each other so as to be relatively angularly displaceable, and a ball belt And a cylindrical seal body 28.
- the spherical belt-shaped sealing body 28 is fitted to the outer surface of the pipe end portion 36 of the upstream exhaust pipe 31 with a thermally expandable annular coating layer 29 that also has a mixture force of acid-treated graphite and wax.
- the annular end surface 25 on the large-diameter side of the spherical base 27 is in contact with the side surface 51 substantially perpendicular to the axial direction X of the flange 37, and the seal seat member is formed on the partially convex spherical outer surface 24 of the spherical base 27. It is slidably contacted with 40 partially concave spherical inner surfaces 39.
- the elastic connecting means 41 has a pair of bolts 43 disposed at one end fixed to the flange 37 and the other end penetrating through a flange portion 42 extending integrally from the seal seat member 40, and the bolt 43 And a pair of coiled springs 44 disposed between the head of the bolt 43 and the flange portion 42.
- the upstream exhaust pipe 31 and the downstream exhaust pipe 35 are Are elastically connected to each other by the elastic connecting means 41, and the downstream exhaust pipe 35 is always connected to the upstream exhaust.
- the spring force of the pair of coil springs 44 is biased in the direction of the trachea 31.
- the relative angular displacement generated between the upstream side exhaust pipe 31 and the downstream side exhaust pipe 35 is a part of the spherical outer surface 24 of the spherical belt-shaped seal body 28 and the part of the seal seat member 40. Allowed for sliding with concave spherical inner surface 39.
- the spherical concave seal member 28 is fixed to the pipe end 38 of the downstream exhaust pipe 35 by the partial convex spherical outer surface 24 thereof.
- the relative angular displacement generated between the upstream exhaust pipe 31 and the downstream exhaust pipe 35 is caused by the partially convex spherical outer surface 24 of the spherical seal 28 and the seal seat member.
- the seal between the upstream side exhaust pipe 31 and the downstream side exhaust pipe 35 is connected to the partially convex spherical outer surface 24 of the spherical base 27.
- contact is made between the annular end surface 25 on the large diameter side of the spherical base 27 and the side surface 51 of the flange 37.
- the thermally expandable annular coating layer 29 formed integrally with the cylindrical inner surface 23 is formed of the exhaust gas flowing in the exhaust pipe.
- the spherical band-shaped seal body 28 and the outer surface of the pipe end 36 of the upstream side exhaust pipe 31 are integrated, so that the spherical band-shaped seal body 28 is It can be securely fixed to the pipe end portion 36 of the upstream side exhaust pipe 31, and when a force in the twisting direction (rotation direction) is input from the downstream side exhaust pipe 35 to the ball-shaped seal body 28, Sliding between the annular inner surface of the coating layer 29 and the outer surface of the pipe end portion 36 of the upstream exhaust pipe 31 and between the annular end surface 25 on the large diameter side of the spherical base 27 and the flange 37 This is a problem for drivers who cannot generate abnormal frictional noise caused by stick-slip etc
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Joints Allowing Movement (AREA)
- Gasket Seals (AREA)
- Exhaust Silencers (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06746673.0A EP2080875B1 (en) | 2006-05-19 | 2006-05-19 | Spherical annular seal member and exhaust pipe joint device making use of the same |
PCT/JP2006/310066 WO2007135722A1 (ja) | 2006-05-19 | 2006-05-19 | 球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 |
US12/441,605 US8186721B2 (en) | 2006-05-19 | 2006-05-19 | Spherical annular seal member, exhaust pipe joint device using the same, and method of manufacturing spherical annular seal member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2006/310066 WO2007135722A1 (ja) | 2006-05-19 | 2006-05-19 | 球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2007135722A1 true WO2007135722A1 (ja) | 2007-11-29 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/310066 WO2007135722A1 (ja) | 2006-05-19 | 2006-05-19 | 球帯状シール体及びそれを用いた排気管継手装置ならびに球帯状シール体の製造方法 |
Country Status (3)
Country | Link |
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US (1) | US8186721B2 (ja) |
EP (1) | EP2080875B1 (ja) |
WO (1) | WO2007135722A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017015011A (ja) * | 2015-07-01 | 2017-01-19 | 日本ピラー工業株式会社 | 排気管継手シール体 |
CN111879347A (zh) * | 2020-07-15 | 2020-11-03 | 中国核动力研究设计院 | 高温高压下两相流精细化测量装置的密封件结构及装置 |
Families Citing this family (3)
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JP4963511B2 (ja) * | 2010-03-05 | 2012-06-27 | トヨタ自動車株式会社 | 排気弁構造 |
JP2013019347A (ja) * | 2011-07-12 | 2013-01-31 | Nihon Glassfiber Industrial Co Ltd | 金属線圧縮体 |
DE102017104608B4 (de) * | 2017-03-06 | 2022-12-29 | Gkn Powder Metallurgy Engineering Gmbh | Rohrleitungsabschnitt einer Common-Rail-Leitung und Verfahren zu dessen Herstellung |
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JP3261767B2 (ja) * | 1992-10-12 | 2002-03-04 | オイレス工業株式会社 | 球帯状シール体ならびにその製造方法 |
US5898022A (en) * | 1994-03-11 | 1999-04-27 | Maples; Paul D. | Dry lubricant |
US6371491B1 (en) * | 1999-09-21 | 2002-04-16 | Victaulic Company Of America | Pipe fitting gasket having enhanced surface properties |
CA2381627C (en) * | 2001-04-13 | 2010-06-22 | Michael J. Mitrovich | Solid lubricant and composition |
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2006
- 2006-05-19 EP EP06746673.0A patent/EP2080875B1/en active Active
- 2006-05-19 WO PCT/JP2006/310066 patent/WO2007135722A1/ja active Application Filing
- 2006-05-19 US US12/441,605 patent/US8186721B2/en active Active
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JPS5821144B2 (ja) | 1977-11-30 | 1983-04-27 | メテツクス・コ−ポレ−シヨン | 排気シ−ル |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017015011A (ja) * | 2015-07-01 | 2017-01-19 | 日本ピラー工業株式会社 | 排気管継手シール体 |
CN111879347A (zh) * | 2020-07-15 | 2020-11-03 | 中国核动力研究设计院 | 高温高压下两相流精细化测量装置的密封件结构及装置 |
CN111879347B (zh) * | 2020-07-15 | 2022-05-20 | 中国核动力研究设计院 | 高温高压下两相流精细化测量装置的密封件结构及装置 |
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US20110049869A1 (en) | 2011-03-03 |
US8186721B2 (en) | 2012-05-29 |
EP2080875B1 (en) | 2016-11-30 |
EP2080875A1 (en) | 2009-07-22 |
EP2080875A4 (en) | 2014-03-19 |
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