CN102425479A - Heat shield assembly of automobile engine exhaust manifold - Google Patents
Heat shield assembly of automobile engine exhaust manifold Download PDFInfo
- Publication number
- CN102425479A CN102425479A CN2011103833013A CN201110383301A CN102425479A CN 102425479 A CN102425479 A CN 102425479A CN 2011103833013 A CN2011103833013 A CN 2011103833013A CN 201110383301 A CN201110383301 A CN 201110383301A CN 102425479 A CN102425479 A CN 102425479A
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- Prior art keywords
- thermal shield
- heat shield
- steel wire
- exhaust manifold
- shield assembly
- 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.)
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Abstract
The invention discloses a heat shield assembly of an automobile engine exhaust manifold, wherein the heat shield assembly comprises a heat shield body; the heat shield body is subjected to punch molding and consists of a heat shield inner layer, a heat shield intermediate layer and a heat shield outer layer; the heat shield body is provided with a mounting hole; the mounting hole is internally provided with a steel wire gauze with a central hole; the outer edge of the steel wire gauze is fixedly connected with the edge of the mounting hole of the heat shield body; the central hole of the steel wire gauze is internally provided with a mounting gasket; and the mounting gasket is fixedly connected with the edge of the central hole of the steel wire gauze. The vibration noise and radiation noise which are generated by the heat shield assembly caused by the engine can be reduced effectively by the heat shield assembly.
Description
Technical field
The present invention relates to the thermal insulation barriers on the motor car engine, particularly automobile engine to exhaust manifold thermal shield assembly.
Background technique
There is the hot phenomenon of heating in the automobile engine to exhaust manifold because of discharging the waste gas of high heat, and therefore the thermal shield assembly is installed on the gas exhaust manifold of motor.Along with the high speed development of automobile industry, the Consumer improves constantly what the travelling comfort of passenger car required, and country is to the continuous propelling of noise level limit, and the vibration and noise reducing work of car load and motor more and more receives the attention of industry.
Existing technology; As shown in Figure 4, thermal shield assembly a directly is fixed on the gas exhaust manifold 1 through connecting bolt, is to be rigidly connected; The vibration meeting of motor is directly delivered to thermal shield assembly a through gas exhaust manifold 1, makes thermal shield assembly a reliability decrease and produces vibrating noise; In Fig. 5, though adopted wire mattress b vibration isolation in mounting points, wire mattress itself is extrusion modling, and degree of flexibility is not high, and is compressed by connecting bolt, approaches basically to be rigidly connected, and anti-vibration performance is not good equally; And thermal shield assembly a is a thin-wall part, is easy to be deflated the noise excitation, produces bigger radiation noise.More than 2 factors can make the thermal shield assembly become one of main noise source of sound of motor, can cause the travelling comfort of automobile to reduce.
Summary of the invention
The purpose of this invention is to provide a kind of automobile engine to exhaust manifold thermal shield assembly, vibrating noise and radiation noise that the thermal shield assembly that is caused by motor with reduction is produced.
Automobile engine to exhaust manifold thermal shield assembly of the present invention; Comprise by the outer thermal shield body of forming of thermal shield internal layer, thermal shield mesosphere and thermal shield; Offer mounting hole on the thermal shield body, in said mounting hole, be provided with the steel wire with center hole, the outward edge of steel wire is fixedly connected with the edge of thermal shield body mounting hole; Be provided with the installation packing ring in the steel wire center hole, packing ring be installed be fixedly connected with steel wire center hole edge.
Evenly offer circular hole on the said thermal shield internal layer.
The present invention adopts steel wire that packing ring cooperate to be installed, through install packing ring with bolt with the thermal shield body-fixed on gas exhaust manifold.Because steel wire diameter is less; And be reticular structure; Therefore flexibility factor is higher; The vibration that the flexible characteristic of steel wire makes enmgine exhaust be delivered to the thermal shield assembly is able to reduce greatly, thereby effectively reduces the surface vibration noise of thermal shield assembly, and has improved the reliability of thermal shield assembly; The thermal shield body adopts the fit together impact briquetting and on the thermal shield internal layer, offer circular hole of thermal shield internal layer, mesosphere and skin; The sound wave that makes some frequency is in phenomenons such as acoustic impedance (being thermal shield internal layer place) generation interference at the interface, reflections; Reduced the thermal shield assembly to extraradial acoustic energy; Thereby reduced the radiation noise, improved the travelling comfort of automobile.In addition, steel wire effectively reduces gas exhaust manifold through the heat transmission of mounting points to the thermal shield body, has improved the heat-shielding performance of thermal shield assembly greatly.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is an axonometric drawing of the present invention.
Fig. 2 is along the sectional view of A-A line among Fig. 1.
Fig. 3 is installed in the view on the gas exhaust manifold for the present invention.
Fig. 4 is directly installed on the view on the gas exhaust manifold for existing thermal shield assembly.
Fig. 5 is installed in the view on the gas exhaust manifold after existing thermal shield assembly adopts the wire mattress vibration isolation.
Embodiment
Like Fig. 1, Fig. 2, automobile engine to exhaust manifold thermal shield assembly shown in Figure 3; Comprise the stamping forming thermal shield body of forming by thermal shield internal layer 4, thermal shield mesosphere 5 and thermal shield outer 68; On thermal shield internal layer 4, evenly offer circular hole 41; On thermal shield body 8, offer mounting hole 81, in mounting hole 81, be provided with the steel wire 3 with center hole 31, the edge of steel wire 3 is riveted on mounting hole 81 edges on the thermal shield body 8; Be provided with in the steel wire center hole 31 packing ring 2 is installed, steel wire center hole 31 edges and 2 riveted joints of installation packing ring.When mounted, passing installation packing ring 2 with bolt 7 is fixed to thermal shield body 8 on the gas exhaust manifold 1.
Making of the present invention and installation process are following:
At first, adopt stamping process even a plurality of circular holes of punching press on the sheet material of thermal shield internal layer 4, secondly; With the thermal shield internal layer 4 behind the blanking, thermal shield mesosphere 5, the thermal shield outer 6 completion impact briquetting that fits together, once more, unnecessary material cut edge handle and mounting holes 81; The flange integer is a thermal shield body 8; At last, with mounting hole 81 edges and the steel wire 3 of thermal shield body 8, and steel wire 3 is riveted with installation packing ring 2 (i.e. E in Fig. 2, D position).
Claims (2)
1. automobile engine to exhaust manifold thermal shield assembly; Comprise the thermal shield body of forming by thermal shield internal layer (4), thermal shield mesosphere (5) and thermal shield outer (6) (8); Offer mounting hole (81) on the thermal shield body; It is characterized in that: in said mounting hole, be provided with the have center hole steel wire (3) of (31); The outward edge of steel wire is fixedly connected with the edge of thermal shield body mounting hole, is provided with in the steel wire center hole packing ring (2) is installed, and packing ring is installed is fixedly connected with steel wire center hole edge.
2. according to the said automobile engine to exhaust manifold of claim 1 thermal shield assembly, it is characterized in that: evenly offer circular hole (41) on the said thermal shield internal layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103833013A CN102425479A (en) | 2011-11-28 | 2011-11-28 | Heat shield assembly of automobile engine exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103833013A CN102425479A (en) | 2011-11-28 | 2011-11-28 | Heat shield assembly of automobile engine exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425479A true CN102425479A (en) | 2012-04-25 |
Family
ID=45959502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103833013A Pending CN102425479A (en) | 2011-11-28 | 2011-11-28 | Heat shield assembly of automobile engine exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102425479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100347A (en) * | 2013-04-08 | 2014-10-15 | 重庆长安汽车股份有限公司 | Integrated heat shield assembly for turbocharged gasoline engine |
| CN110469390A (en) * | 2019-08-08 | 2019-11-19 | 上海富澳奇机电设备制造有限公司 | A kind of Automobile heat shield |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183994A (en) * | 1977-07-25 | 1980-01-15 | Toyota Jidosha Kogyo Kabushiki Kaisha | Heat insulating plate |
| JP3553177B2 (en) * | 1995-01-19 | 2004-08-11 | イビデン株式会社 | Automotive sound and heat insulation |
| JP2010121496A (en) * | 2008-11-18 | 2010-06-03 | Yutaka Giken Co Ltd | Supporting structure of exhaust component cover |
| CN201560832U (en) * | 2009-12-21 | 2010-08-25 | 广西玉柴机器股份有限公司 | Heat-insulating hood for exhaust pipe |
| CN201588691U (en) * | 2009-12-21 | 2010-09-22 | 广西玉柴机器股份有限公司 | Thermal shield for volute housing of booster |
| CN201934153U (en) * | 2011-01-05 | 2011-08-17 | 广西玉柴机器股份有限公司 | Thermal shield for engine supercharger volute casing |
-
2011
- 2011-11-28 CN CN2011103833013A patent/CN102425479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183994A (en) * | 1977-07-25 | 1980-01-15 | Toyota Jidosha Kogyo Kabushiki Kaisha | Heat insulating plate |
| JP3553177B2 (en) * | 1995-01-19 | 2004-08-11 | イビデン株式会社 | Automotive sound and heat insulation |
| JP2010121496A (en) * | 2008-11-18 | 2010-06-03 | Yutaka Giken Co Ltd | Supporting structure of exhaust component cover |
| CN201560832U (en) * | 2009-12-21 | 2010-08-25 | 广西玉柴机器股份有限公司 | Heat-insulating hood for exhaust pipe |
| CN201588691U (en) * | 2009-12-21 | 2010-09-22 | 广西玉柴机器股份有限公司 | Thermal shield for volute housing of booster |
| CN201934153U (en) * | 2011-01-05 | 2011-08-17 | 广西玉柴机器股份有限公司 | Thermal shield for engine supercharger volute casing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100347A (en) * | 2013-04-08 | 2014-10-15 | 重庆长安汽车股份有限公司 | Integrated heat shield assembly for turbocharged gasoline engine |
| CN104100347B (en) * | 2013-04-08 | 2016-06-29 | 重庆长安汽车股份有限公司 | A kind of integrated form heat shield assembly of supercharging gasoline engine |
| CN110469390A (en) * | 2019-08-08 | 2019-11-19 | 上海富澳奇机电设备制造有限公司 | A kind of Automobile heat shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |