EP3001005A1 - Isolant thermique et sa structure de fixation - Google Patents
Isolant thermique et sa structure de fixation Download PDFInfo
- Publication number
- EP3001005A1 EP3001005A1 EP14800794.1A EP14800794A EP3001005A1 EP 3001005 A1 EP3001005 A1 EP 3001005A1 EP 14800794 A EP14800794 A EP 14800794A EP 3001005 A1 EP3001005 A1 EP 3001005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat insulator
- area
- fastened
- fastening
- fasteners
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
- F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
-
- 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
- F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
Definitions
- the present invention relates to a heat insulator and a fastening structure for the heat insulator.
- a vehicle such as an automobile is provided with a heat insulator, which is arranged to cover the exhaust manifold.
- the heat insulator shields heat radiated from the exhaust manifold of the internal combustion engine so that the heat does not affect other components.
- the heat insulator is fastened to a fastening target object at predetermined fastening target sections not to fall off from the vehicle.
- Patent Document 1 discloses a bead formed for absorbing a vibration around fastened portions of the heat insulator.
- Patent Document 1 Japanese Laid-Open Patent Publication No. 2007-113479
- a heat insulator fastening structure includes a heat insulator adapted to cover an exhaust manifold and a plurality of fasteners adapted to fasten the heat insulator to a fastening target object in a manner in which the heat insulator is movable within a predetermined range.
- the heat insulator includes a first area, which is adapted to vibrate in a single phase, and a second area, which is different from the first area and is adapted to vibrate in a single phase.
- the first area is fastened to the fastening target object with at least one of the fasteners.
- the second area is fastened to the fastening target object with at least another one of the fasteners.
- a heat insulator is adapted to cover an exhaust manifold and be fastened to a fastening target object with a plurality of fasteners in a manner in which the heat insulator is movable within a predetermined range.
- the heat insulator includes a first area having a fastened portion adapted to vibrate in a single phase and be fastened to the fastening target object with at least one of the fasteners and a second area having a fastened portion adapted to vibrate in a single phase and be fastened to the fastening target object with at least another one of the fasteners.
- a heat insulator 1 covers an exhaust manifold 2, which is connected to an internal combustion engine and a muffler and receives vibration transmitted from the internal combustion engine and the muffler.
- the heat insulator 1 is fastened with fasteners 3 to predetermined fastening target sections P1-P4 of the exhaust manifold 2, which is a fastening target object.
- the heat insulator 1 is fastened with the fasteners 3 to the fastening target sections P1-P4 in a manner in which the heat insulator 1 can be displaced within a predetermined range.
- the heat insulator 1 includes a first area A1 and a second area A2.
- the vibration transmitted from the exhaust manifold 2 vibrates the first area A1 in a single phase and vibrates the second area A2, which is an area different from the first area A1, in a single phase.
- the first and second areas A1 and A2 of the heat insulator 1 are fastened to the fastening target sections P1-P4 with the fasteners 3.
- the heat insulator 1 has two positions in the first area A1 that are fastened to the fastening target sections P1 and P2 and has two positions in the second area A2 that are fastened to the fastening target sections P3 and P4.
- the first area A1 is located in an upper portion of the heat insulator 1.
- the second area A2 is located in the center in the up-down direction of the heat insulator 1. In other words, the first area A1 is located at one of two opposite end portions in the heat insulator 1, and the second area A2 is located in the center between the end portions.
- each of the fasteners 3 for fastening the heat insulator 1 to the fastening target sections P1-P4 includes a support 4 and a bolt 5.
- the support 4 supports a portion in the corresponding area A1 (A2) of the heat insulator 1 that corresponds to the corresponding fastening target section P1 (P2, P3, P4) such that the supported portion is movable within a predetermined range.
- the bolt 5 fixes the support 4 to the fastening target section P1 (P2, P3, P4).
- the support 4 includes a cylindrical body 7. The cylindrical body 7 passes through a hole 6, which is formed in the portion of the heat insulator 1 that corresponds to the fastening target section P1 (P2, P3, P4).
- a ring-shaped washer 8 fits to the outer circumference at one end in the axial direction of the cylindrical body 7.
- a flange 9 is formed on the outer circumference at the other end of the cylindrical body 7.
- Elastic bodies 10 are fixed between the washer 8 and the flange 9 and support a portion around the hole 6 of the heat insulator 1.
- the bolt 5 passes through the cylindrical body 7 of the support 4 and is screwed into the fastening target section P1 (P2, P3, P4) of the exhaust manifold 2 so that the heat insulator 1 is fastened to the fastening target sections P1 (P2, P3, P4) with the fastener 3. This state allows the heat insulator 1 to be displaced by an amount corresponding to the amount of elastic deformation of the elastic bodies 10 in the support 4.
- Fig. 3 is a graph that shows changes in a stress applied to a predetermined location (e.g., a location PX of Fig. 1 ) in the heat insulator 1 at vibration due to changes in the rotational speed of the internal combustion engine.
- the long dashed double short dashed line in Fig. 3 represents a stress applied to the location PX when it is assumed that the outer rim of the heat insulator 1 is fastened to the exhaust manifold 2 at multiple positions (e.g., eight positions) that are located at predetermined intervals.
- the solid line of Fig. 3 represents a stress applied to the location PX when the fastening structure of the heat insulator 1 of Fig. 1 according to the present embodiment is employed.
- the phase of a vibration in the first area A1 of the heat insulator 1 may differ from the phase of a vibration in the second area A2.
- the amount and timing of displacement of the fastened portions of the heat insulator 1 toward and away from the fastening target sections P1 and P2 caused by a vibration in the first area A1 are different from the amount and timing of displacement of the fastened portions of the heat insulator 1 toward and away from the fastening target sections P3 and P4 caused by a vibration in the second area A2.
- the heat insulator 1 is merely fastened to the fastening target sections P1-P4 of the exhaust manifold 2 in the single first area A1 and the single second area A2. Moreover, the first area A1 and the second area A2 of the heat insulator 1 are fastened to the fastening target sections P1-P4 with the fasteners 3. In this fastened state, the heat insulator 1 can be displaced within the range defined by the fasteners 3.
- a vibration of the first area A1 and a vibration of the second area A2 cause the fastened portions to be displaced toward and away from the fastening target sections P1-P4. Even if the amounts and the timings of such displacement vary between the fastened portions, the incidence of excessive torsion, tension, and compression is limited between the fastened portions in the first area A1 and the fastened portions in the second area A2. As a result, a stress applied to the location PX of the heat insulator 1 is maintained low as shown in Fig. 3 as indicated by the solid line.
- the embodiment may be modified in the following forms.
- the heat insulator 1 may be fastened to the internal combustion engine and the body of the vehicle. In other words, the heat insulator 1 may be fastened to a fastening target object other than the exhaust manifold 2.
- the heat insulator 1 may be fastened with fasteners 3 at two positions in the first area A1 and at only one position in the second area A2.
- the heat insulator 1 may be fastened with fasteners 3 at two positions in the second area A2 and at only one position in the first area A1.
- the heat insulator 1 may be fastened with fasteners 3 at three or more positions in the first area A1 or at three or more positions in the second area A2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Thermal Sciences (AREA)
- Exhaust Silencers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013107282A JP5885258B2 (ja) | 2013-05-21 | 2013-05-21 | ヒートインシュレータの締結構造 |
PCT/JP2014/063204 WO2014189000A1 (fr) | 2013-05-21 | 2014-05-19 | Isolant thermique et sa structure de fixation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3001005A1 true EP3001005A1 (fr) | 2016-03-30 |
EP3001005A4 EP3001005A4 (fr) | 2016-05-18 |
Family
ID=51933553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14800794.1A Withdrawn EP3001005A4 (fr) | 2013-05-21 | 2014-05-19 | Isolant thermique et sa structure de fixation |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160102929A1 (fr) |
EP (1) | EP3001005A4 (fr) |
JP (1) | JP5885258B2 (fr) |
CN (1) | CN105264194A (fr) |
WO (1) | WO2014189000A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7411472B2 (ja) * | 2020-03-27 | 2024-01-11 | エルリングクリンガー・マルサン株式会社 | 締結具、遮蔽ユニット |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3669932B2 (ja) * | 2001-03-12 | 2005-07-13 | 日本ラインツ株式会社 | 遮熱板用支持装置の緩衝材 |
JP3833909B2 (ja) * | 2001-07-11 | 2006-10-18 | 東海ゴム工業株式会社 | 防音カバー |
US6581720B1 (en) * | 2001-11-30 | 2003-06-24 | Dana Corporation | Noise attenuating insulated heat shield |
JP2004044526A (ja) * | 2002-07-15 | 2004-02-12 | Pacific Ind Co Ltd | エンジンカバー |
JP4446686B2 (ja) * | 2003-06-02 | 2010-04-07 | 三和パッキング工業株式会社 | 緩衝装置及び金属製カバー |
JP4398222B2 (ja) * | 2003-10-29 | 2010-01-13 | ニチアス株式会社 | 防振遮熱板 |
JP4472325B2 (ja) * | 2003-12-25 | 2010-06-02 | 三和パッキング工業株式会社 | 緩衝装置 |
JP2007113479A (ja) * | 2005-10-20 | 2007-05-10 | Nippon Reinz Co Ltd | 遮熱板 |
JP4941126B2 (ja) * | 2007-06-27 | 2012-05-30 | 国産部品工業株式会社 | 遮音カバー |
JP2009108824A (ja) * | 2007-10-31 | 2009-05-21 | Yamaha Motor Co Ltd | 自動二輪車 |
CN102483125B (zh) * | 2009-08-17 | 2014-02-26 | 三和密封件工业株式会社 | 缓冲装置和金属制罩 |
JP4901992B1 (ja) * | 2010-12-22 | 2012-03-21 | 三和パッキング工業株式会社 | 緩衝装置及び金属製カバー |
-
2013
- 2013-05-21 JP JP2013107282A patent/JP5885258B2/ja active Active
-
2014
- 2014-05-19 US US14/891,161 patent/US20160102929A1/en not_active Abandoned
- 2014-05-19 WO PCT/JP2014/063204 patent/WO2014189000A1/fr active Application Filing
- 2014-05-19 CN CN201480028941.4A patent/CN105264194A/zh active Pending
- 2014-05-19 EP EP14800794.1A patent/EP3001005A4/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2014189000A1 (fr) | 2014-11-27 |
JP2014227887A (ja) | 2014-12-08 |
US20160102929A1 (en) | 2016-04-14 |
CN105264194A (zh) | 2016-01-20 |
EP3001005A4 (fr) | 2016-05-18 |
JP5885258B2 (ja) | 2016-03-15 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20151120 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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A4 | Supplementary search report drawn up and despatched |
Effective date: 20160414 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01N 13/10 20100101ALI20160408BHEP Ipc: F01N 13/18 20100101ALI20160408BHEP Ipc: F01N 13/14 20100101AFI20160408BHEP Ipc: F02B 77/11 20060101ALI20160408BHEP |
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DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20161115 |