WO2015040955A1 - 巻型マフラーの製造方法、及び、巻型マフラー - Google Patents
巻型マフラーの製造方法、及び、巻型マフラー Download PDFInfo
- Publication number
- WO2015040955A1 WO2015040955A1 PCT/JP2014/069857 JP2014069857W WO2015040955A1 WO 2015040955 A1 WO2015040955 A1 WO 2015040955A1 JP 2014069857 W JP2014069857 W JP 2014069857W WO 2015040955 A1 WO2015040955 A1 WO 2015040955A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- muffler
- silencer
- main body
- expansion
- side pipe
- 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
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
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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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- 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
- F01N13/1811—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
- F01N13/1816—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 the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
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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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/06—Inserting sound absorbing material into a chamber
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
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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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
-
- 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
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/08—Two or more expansion chambers in series separated by apertured walls only
Definitions
- the present invention relates to a technique for manufacturing a wound muffler.
- the structure of the wound muffler is limited. That is, after the main body is formed into a cylindrical shape, a silencer that is longer in the radial direction than the diameter of the opening of the cylindrical main body cannot be inserted into the main body. For this reason, it has been limited to a structure in which the silencer is inserted into the cylindrical body and then the opening of the body is covered, and the pipe of the silencer is extended from the lid.
- the present invention makes it possible to make the silencer longer than the diameter of the opening of the cylindrical main body after inserting the silencer into the cylindrical main body, and the degree of freedom of structure.
- a method for manufacturing a wound muffler and a wound muffler are provided.
- a method of manufacturing a wound muffler in which a silencer is inserted into a cylindrical main body, wherein the silencer includes an exhaust inlet side pipe and an exhaust outlet. At least one of the side pipes is provided with an expansion / contraction portion that can be expanded and contracted in the axial direction, and in a state in which the expansion / contraction portion of the silencer is contracted, the silencer is inserted into the main body, and then the By extending the expansion / contraction part of the silencer, the distal end part of the pipe provided with the expansion / contraction part is extended to the outside of the main body part.
- the said expansion-contraction part is provided with the mountain fold part which becomes a convex part when it shrinks, and the valley fold part which becomes a recessed part when it shrinks
- the said mountain fold part and the said valley fold part are piping. Are alternately arranged in the circumferential direction and the direction along the axial direction.
- the present invention when manufacturing a wound muffler, it is possible to make the silencer longer than the diameter of the opening of the tubular body after inserting the silencer into the tubular body.
- the degree of freedom of the structure of the muffler can be improved.
- FIG. 6A is a plan view showing a muffler according to a second embodiment
- FIG. 5B is a sectional view taken along line XX in FIG.
- FIG. 1 (a) and (b) the schematic structure of the muffler 10 which is 1st embodiment of the muffler which concerns on this invention is demonstrated.
- stainless steel is used as a main raw material, for example.
- the direction in the muffler 10 is defined using the arrows shown in FIGS. 1 (a) and 1 (b).
- the muffler 10 includes a cylindrical main body 11 having an opening in the front-rear direction.
- the main body 11 is formed in a cylindrical shape by winding a plate-like workpiece around a mold (not shown), butting the ends together and joining them with a lock seam or welding.
- the main body 11 in this embodiment is formed such that the length in the left-right direction of the front opening 11a is shorter than that of the rear opening 11b (see FIG. 3).
- the front opening 11 a is closed by the front lid 12, and the rear opening 11 b is closed by the rear lid 13.
- a silencer 20 is inserted into the main body 11.
- the silencer 20 includes a plate-like first separator 21 and a second separator 22 in which a large number of holes (not shown) are opened.
- the first separator 21 and the second separator 22 are spaced apart from each other in the left-right direction, and the first separator 21 is disposed on the right side of the second separator 22.
- the inside of the main body 11 in the muffler 10 is, in order from the upstream side of exhaust (the right side in the muffler 10), the first expansion chamber R1, the second expansion chamber R2, and the third separator by the first separator 21 and the second separator 22. Divided into an expansion chamber R3.
- the silencer 20 includes an inlet side pipe 23 that introduces exhaust gas from the outside of the muffler 10 to the first expansion chamber R1, and an outlet side pipe 24 that leads exhaust gas from the third expansion chamber R3 to the outside of the muffler 10.
- the inlet-side piping 23 has an upstream end 23 a located outside the front side of the muffler 10, and extends rearward from the upstream end 23 a and is a hole opened in the front lid 12. It has entered the second expansion chamber R2 through the section. Further, the inlet-side piping 23 is bent about 90 degrees in the second expansion chamber R2 and extends to the right side, penetrates the first separator 21, and the downstream end 23b enters the first expansion chamber R1. Yes.
- the inlet side pipe 23 communicates the outside on the front side of the muffler 10 and the first expansion chamber R1.
- the outlet side pipe 24 has an upstream end 24a disposed in the third expansion chamber R3, and extends to the right side from the upstream end 24a and penetrates through the second separator 22 and the first separator 21. Yes. Further, the outlet side pipe 24 passes through a hole 11c (see FIGS. 4A and 4B) opened on the right side of the muffler 10, and the downstream end 24b is located outside the right side of the muffler 10. It is extended. Thus, the outlet side pipe 24 communicates the third expansion chamber R3 and the outside on the right side of the muffler 10. An upstream end 25 a of the discharge pipe 25 is connected to the downstream end 24 b of the outlet side pipe 24. The discharge pipe 25 is bent about 90 degrees, and the downstream end 25b thereof is disposed rearward.
- exhaust gas is introduced from the outside of the muffler 10 into the first expansion chamber R1 through the inlet-side pipe 23, and is further opened to the first separator 21 and the second separator 22.
- the exhaust is sequentially guided to the second expansion chamber R2 and the third expansion chamber R3 through the holes, and further, the exhaust is discharged from the third expansion chamber R3 to the outside of the muffler 10 via the outlet side pipe 24 and the discharge pipe 25.
- the configuration is derived. In this process, exhaust noise from the vehicle body equipped with the muffler 10 is reduced.
- the silencer 20 includes an expansion / contraction part 30 that can expand and contract in the axial direction (left and right direction) in the outlet side pipe 24.
- the silencer 20 includes an expansion / contraction part 30 that can expand and contract in the axial direction (left and right direction) in the outlet side pipe 24.
- the middle of the telescopic tube 30P there are a mountain fold Lu that becomes a convex when the telescopic portion 30 is contracted, and a valley that becomes a concave when the telescopic portion 30 is contracted.
- the stretchable portion 30 is formed to be stretchable in the left-right direction.
- the telescopic pipe 30 ⁇ / b> P is connected as the downstream end 24 b of the outlet side pipe 24. Then, the muffler 20 is inserted into the main body 11 with the expansion / contraction part 30 contracted, and then the expansion / contraction part 30 is extended. As a result, the downstream end 24 b that is the tip of the outlet side pipe 24 including the expansion / contraction part 30 extends to the outside of the main body 11.
- FIG. 2A the plate-like member B is bent as shown by an arrow A, the end portions are butted together and welded to form a tubular member P. It is also possible to omit the production process of the tubular member P and use a general-purpose seamless pipe as the tubular member P.
- the expansion / contraction part 30 is formed in the tubular member P to obtain an expansion / contraction tube 30P.
- the molding surface of the outer mold Po formed to have a concave shape radially outward is directed radially inward from the outer peripheral surface of the tubular member P as indicated by an arrow Fr in FIG.
- the inner surface Pi of the inner member Pi formed so as to have a convex shape outward in the radial direction is pressed on the inner periphery of the tubular member P via the slide member Ps as indicated by an arrow Fs in FIG. Pressing outward from the surface in the radial direction.
- the mountain fold portions Lu and the valley fold portions Ld are alternately formed, and the stretchable portion 30 is formed in the middle portion of the tubular member P.
- the cylindrical part that does not form the expansion / contraction part 30 is an end part 30a on the outlet side pipe 24 side and an end part 30b on the discharge pipe 25 side.
- the expansion-contraction part 30 is formed so that it may become an octagon when it sees in an axial direction, the structure folded into other polygonal shapes may be sufficient. That is, the structure of the expansion / contraction part 30 can be changed according to the structure of the muffler 10, the diameter of the tubular member P, and the like.
- the telescopic tube 30 ⁇ / b> P is assembled to the silencer 20. Specifically, the end 30a of the expansion / contraction tube 30P and the downstream side of the outlet side pipe 24 are joined by welding. Thereby, the expansion-contraction part 30 is provided in the exit side piping 24 in the silencer 20. Further, the end portion 30 b of the telescopic tube 30 ⁇ / b> P becomes the downstream end portion 24 b of the outlet side pipe 24.
- the silencer 20 provided with the expansion / contraction part 30 is inserted into the main body part 11.
- the silencer 20 is inserted into the main body 11 through the front opening 11a as shown by an arrow B in FIG. 3 in a state where the expansion / contraction part 30 is contracted (a state in which the length in the left-right direction is shortened).
- the silencer 20 may be inserted into the main body 11 from the rear opening 11b.
- the front end portions of the first separator 21 and the second separator 22 and the end portion on the front opening portion 11a side of the main body portion 11 are joined by welding.
- the rear end portions of the first separator 21 and the second separator 22 are joined to the end portion on the rear opening portion 11b side of the main body portion 11 by welding.
- the silencer 20 is fixed to the main body 11.
- the silencer 20 and the main body 11 can be fixed by a method other than welding, for example, a fixing tool.
- a tensile force is applied to the downstream end 24b of the silencer 20 to extend the expansion / contraction part 30.
- the downstream end part 24b which is a front-end
- the hole part 11c it is possible to open in the step of the plate-shaped workpiece
- the front opening 11 a is closed with the front lid 12, and the rear opening 11 b is closed with the rear lid 13.
- the inlet-side piping 23 is inserted into a hole previously opened in the front lid 12 and penetrates through the front lid 12.
- the upstream end 23a extends to the outside on the front side of the muffler 10.
- downstream end 24b of the outlet side pipe 24 and the hole 11c of the main body 11 are joined by welding.
- the downstream end 24 b is fixed to the main body 11.
- the downstream end 24b and the upstream end 25a of the discharge pipe 25 are joined together by welding, whereby the discharge pipe 25 is assembled to the muffler 10.
- the muffler 10 is a wound muffler formed by inserting the silencer 20 into the cylindrical body 11, and the silencer 20 is an exhaust outlet.
- the side pipe 24 is provided with an expansion / contraction part 30 that can be expanded and contracted in the axial direction, and the expansion / contraction of the silencer 20 is inserted after the silencer 20 is inserted into the main body 11 with the expansion / contraction part 30 of the silencer 20 contracted.
- the downstream end 24 b of the outlet side pipe 24 extends to the outside of the main body 11.
- the expansion / contraction part 30 of the silencer 20 is extended to the downstream end 24 b of the outlet side pipe 24. Is extended to the outside of the main body 11.
- the silencer 20 can be made longer than the diameter (length in the left-right direction) of the front opening 11a of the cylindrical main body 11, and the degree of freedom of the structure of the muffler 10 can be improved.
- the hole portion opened in the main body portion 11 is not limited to the structure of extending the pipe of the silencer 20 from the hole portion opened in the front lid portion 12 or the rear lid portion 13. In this case, the pipe can be extended from the hole 11c).
- the silencer 20 is lengthened in a direction (left and right direction in the present embodiment) perpendicular to the direction in which the silencer 20 is inserted with respect to the main body portion 11 (in the front and rear direction in the present embodiment) (In this embodiment, the outlet side pipe 24) can be extended.
- FIGS. 5A and 5B a schematic configuration of the muffler 110 which is the second embodiment of the muffler according to the present invention will be described.
- the direction in the muffler 110 is prescribed
- the muffler 110 includes a cylindrical main body 111 having an opening in the left-right direction.
- the left opening of the main body 111 is closed by the left lid 112 and the right opening is closed by the right lid 113.
- a silencer 120 is inserted into the main body 111.
- the silencer 120 includes a plate-like first separator 121 and a second separator 122 in which a large number of holes (not shown) are opened. Due to the first separator 121 and the second separator 122, the inside of the main body 111 in the muffler 110 is arranged in order from the upstream side of exhaust (the right side in the muffler 110), the first expansion chamber R 1, the second expansion chamber R 2, and the third Divided into an expansion chamber R3.
- the silencer 120 includes an inlet side pipe 123 that introduces exhaust gas from the outside of the muffler 110 to the first expansion chamber R1, and an outlet side pipe 124 that leads exhaust gas from the third expansion chamber R3 to the outside of the muffler 110.
- exhaust gas is introduced from the outside of the muffler 110 into the first expansion chamber R1 through the inlet-side pipe 123, and is further opened to the first separator 121 and the second separator 122.
- the exhaust gas is sequentially guided to the second expansion chamber R2 and the third expansion chamber R3 through the holes, and the exhaust gas is led out from the third expansion chamber R3 to the outside of the muffler 110 through the outlet side pipe 124. Yes. In this process, exhaust noise from the vehicle body equipped with the muffler 110 is reduced.
- the muffler 120 includes an expansion / contraction part 130 that can expand and contract in the axial direction (front-rear direction) in the inlet-side pipe 123.
- expansion and contraction is achieved by alternately forming a mountain fold and a valley fold at the portion of the inlet side pipe 123 that intersects the inner peripheral surface of the main body 111.
- the portion 130 is formed to be extendable in the front-rear direction.
- the muffler 120 is inserted into the main body 111 from the left-right direction with the expansion / contraction part 130 contracted, and then the expansion / contraction part 130 is extended in the front-rear direction.
- tip part of the inlet side piping 123 provided with the expansion-contraction part 130 is extended outside the main-body part 111 through the hole 111c.
- the silencer 120 can be made longer than the diameter (length in the front-rear direction) of the opening of the cylindrical main body 111, and the degree of freedom of the structure of the muffler 110 can be improved.
- the hole portion opened in the main body portion 111 is not limited to the structure in which the hole portion is opened in the left lid portion 112 or the right lid portion 113 and the piping of the silencer 120 is extended.
- the pipe can be extended from the hole 111c).
- the silencer 120 is elongated in a direction (front-rear direction in the present embodiment) orthogonal to the direction (left-right direction in the present embodiment) in which the silencer 120 is inserted into the main body 111.
- the inlet side pipe 123) can be extended.
- the pipe that extends the distal end portion to the outside of the main body part by extending the expansion / contraction part of the silencer is an exhaust inlet side pipe and an exhaust outlet side pipe. At least one of them may be used.
- both the exhaust inlet side pipe and the exhaust outlet side pipe are provided with expansion and contraction parts so that the respective leading ends extend outside the main body part.
- the pipes (exit side pipe 24 and inlet side pipe 123) provided with the expansion and contraction parts (30, 130) are
- the tip portion is configured to extend from the hole portion (11c / 111c) opened to the main body portion (11/111), but the tip portion may be configured to extend from the hole portion opened to any of the lid portions. It is.
- the silencer since the silencer can be made longer than the diameter of the opening of the cylindrical main body after inserting the silencer into the cylindrical main body, it is industrially useful.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
なお、本発明の技術的範囲は以下の実施例に限定されるものではなく、本明細書及び図面に記載した事項から明らかになる本発明が真に意図する技術的思想の範囲全体に、広く及ぶものである。
マフラー10における本体部11の内部は、第一セパレータ21及び第二セパレータ22により、排気の上流側(マフラー10における右側)から順に、第一拡張室R1、第二拡張室R2、及び、第三拡張室R3に分割される。
具体的には、入口側配管23は、上流側端部23aがマフラー10の前側の外部に位置しており、上流側端部23aから後方に延出して、前側蓋部12に開口された孔部を通じて第二拡張室R2内に進入している。さらに、入口側配管23は、第二拡張室R2内において約90度屈曲されて右側へ延出し、第一セパレータ21を貫通して下流側端部23bが第一拡張室R1内に進入している。このように、入口側配管23は、マフラー10の前側の外部と第一拡張室R1とを連通している。
また、出口側配管24は、上流側端部24aが第三拡張室R3に配置されており、上流側端部24aから右側へ延出して、第二セパレータ22及び第一セパレータ21を貫通している。さらに、出口側配管24は、マフラー10の右側に開口された孔部11c(図4(a)及び(b)を参照)を貫通して、下流側端部24bがマフラー10の右側の外部に延出している。このように、出口側配管24は、第三拡張室R3とマフラー10の右側の外部とを連通している。
出口側配管24の下流側端部24bには、排出パイプ25の上流側端部25aが接続される。排出パイプ25は約90度屈曲されてその下流側端部25bが後方に向かうように配置される。
まず、図2(a)に示す如く、板状部材Bに対して矢印Aに示す如く曲げ加工を行い、端部を突き合わせて溶接により接合し、管状部材Pを形成する。なお、管状部材Pの制作工程を省略し、汎用のシームレスパイプを管状部材Pとして使用することも可能である。
11 本体部
20 消音装置
24 出口側配管
24b 下流側端部
30 伸縮部
Claims (3)
- 筒状に形成した本体部の内部に消音装置を挿入する、巻型マフラーの製造方法であって、
前記消音装置は、排気の入口側配管、及び、排気の出口側配管のうち少なくとも何れか一方に、軸方向に伸縮可能な伸縮部を備え、
前記消音装置の前記伸縮部を縮めた状態で、前記消音装置を前記本体部の内部に挿入し、
その後、前記消音装置の前記伸縮部を伸ばすことにより、前記伸縮部を備える配管の先端部を前記本体部の外側に延出させる、ことを特徴とする、巻型マフラーの製造方法。 - 筒状に形成された本体部の内部に消音装置が挿入されて形成される巻型マフラーであって、
前記消音装置は、排気の入口側配管、及び、排気の出口側配管のうち少なくとも何れか一方に、軸方向に伸縮可能な伸縮部を備える、ことを特徴とする、巻型マフラー。 - 前記伸縮部は、縮めた際に凸部となる山折部と、縮めた際に凹部となる谷折部と、を備え、
前記山折部と前記谷折部とは、配管の周方向、及び軸方向に沿う方向に交互に配置されている、ことを特徴とする、請求項2に記載の巻型マフラー。
Priority Applications (3)
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US15/022,760 US20160208672A1 (en) | 2013-09-17 | 2014-07-28 | Producing method of wound muffler, and wound muffler |
CN201480046947.4A CN105518269A (zh) | 2013-09-17 | 2014-07-28 | 卷式消声器的制造方法以及卷式消声器 |
DE112014004245.5T DE112014004245T5 (de) | 2013-09-17 | 2014-07-28 | Herstellungsverfahren eines gewickelten Schalldämpfers und gewickelter Schalldämpfer |
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JP2013192209A JP5929858B2 (ja) | 2013-09-17 | 2013-09-17 | 巻型マフラーの製造方法 |
JP2013-192209 | 2013-09-17 |
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US (1) | US20160208672A1 (ja) |
JP (1) | JP5929858B2 (ja) |
CN (1) | CN105518269A (ja) |
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JP6495567B1 (ja) * | 2018-10-12 | 2019-04-03 | 株式会社クレファクト | 消音器のグラスファイバー充填方法及びグラスファイバー充填装置 |
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JPS57121719U (ja) * | 1981-01-24 | 1982-07-29 | ||
JPS6158615U (ja) * | 1984-09-21 | 1986-04-19 | ||
JP2011058412A (ja) * | 2009-09-09 | 2011-03-24 | Toyota Motor Corp | 気流通路放射音低減構造 |
JP2011163342A (ja) * | 2010-02-05 | 2011-08-25 | J Eberspecher Gmbh & Co Kg | 消音器 |
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JPH06117243A (ja) * | 1992-06-17 | 1994-04-26 | Sango Co Ltd | 排気系の伸縮継手 |
DE29901957U1 (de) * | 1999-02-05 | 1999-04-22 | Witzenmann Metallschlauchfab | Leitungselement für Abgasleitungen von Kraftfahrzeugen |
CN2474731Y (zh) * | 2001-03-13 | 2002-01-30 | 史晓辉 | 波纹管吸阻消音器 |
DE102005026376C5 (de) * | 2005-06-08 | 2019-05-02 | Faurecia Emissions Control Technologies, Germany Gmbh | Fahrzeugschalldämpfer |
JP4545660B2 (ja) * | 2005-09-02 | 2010-09-15 | カルソニックカンセイ株式会社 | 消音器構造 |
CN201236733Y (zh) * | 2008-04-19 | 2009-05-13 | 奇瑞汽车股份有限公司 | 一种排气消声器 |
CN201284682Y (zh) * | 2008-10-17 | 2009-08-05 | 奇瑞汽车股份有限公司 | 一种消声器结构 |
JP4853557B2 (ja) * | 2009-08-21 | 2012-01-11 | トヨタ自動車株式会社 | 放射音低減構造 |
US8485311B2 (en) * | 2011-03-04 | 2013-07-16 | GM Global Technology Operations LLC | Air duct assembly for engine |
US8479879B2 (en) * | 2011-06-13 | 2013-07-09 | King Fahd University Of Petroleum And Minerals | Expandable chamber acoustic silencer |
US8672090B1 (en) * | 2012-09-30 | 2014-03-18 | Favrecia Emissions Control Technologies | Exhaust component with vibration isolated pipe |
-
2013
- 2013-09-17 JP JP2013192209A patent/JP5929858B2/ja not_active Expired - Fee Related
-
2014
- 2014-07-28 US US15/022,760 patent/US20160208672A1/en not_active Abandoned
- 2014-07-28 WO PCT/JP2014/069857 patent/WO2015040955A1/ja active Application Filing
- 2014-07-28 DE DE112014004245.5T patent/DE112014004245T5/de not_active Withdrawn
- 2014-07-28 CN CN201480046947.4A patent/CN105518269A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57121719U (ja) * | 1981-01-24 | 1982-07-29 | ||
JPS6158615U (ja) * | 1984-09-21 | 1986-04-19 | ||
JP2011058412A (ja) * | 2009-09-09 | 2011-03-24 | Toyota Motor Corp | 気流通路放射音低減構造 |
JP2011163342A (ja) * | 2010-02-05 | 2011-08-25 | J Eberspecher Gmbh & Co Kg | 消音器 |
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US20160208672A1 (en) | 2016-07-21 |
CN105518269A (zh) | 2016-04-20 |
DE112014004245T5 (de) | 2016-06-09 |
JP5929858B2 (ja) | 2016-06-08 |
JP2015059448A (ja) | 2015-03-30 |
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