CN104100347A - Integrated heat shield assembly for turbocharged gasoline engine - Google Patents
Integrated heat shield assembly for turbocharged gasoline engine Download PDFInfo
- Publication number
- CN104100347A CN104100347A CN201310119049.4A CN201310119049A CN104100347A CN 104100347 A CN104100347 A CN 104100347A CN 201310119049 A CN201310119049 A CN 201310119049A CN 104100347 A CN104100347 A CN 104100347A
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- China
- Prior art keywords
- heat shield
- mounting hole
- supercharger heat
- catalyzing unit
- ternary catalyzing
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- 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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- Exhaust Silencers (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an integrated thermal shroud assembly for a turbocharged gasoline engine. The integrated thermal shroud assembly comprises a three-way catalytic converter upper shield and a three-way catalytic converter lower shield connected with the middle of the three-way catalytic converter upper shield, and is characterized in that a supercharger heat shield is connected to the upper part of the three-way catalytic converter upper shield; the front end of the supercharger heat shield corresponds to one end of the three-way catalytic converter lower shield; the supercharger heat shield is of a layered structure, an upper layer and a lower layer are hot dipped aluminum plates, and a middle layer is a ceramic fiber paperboard. The integrated thermal shroud assembly is concise in shape and structure, can be used for performing heat insulation, noise reduction and protection on the supercharger and the three-way catalytic converter which are taken as a whole, the strength is improved, the requirement on modes is met, and the integrated thermal shroud assembly is easy to process and manufacture and is convenient to mount.
Description
Technical field
The invention belongs to automobile engine exhaust system member, be specifically related to a kind of integrated form thermal shield assembly of supercharging gasoline engine.
Background technique
According to the height of temperature, engine exhaust system is divided into hot junction and cold junction, and the former comprises gas exhaust manifold, pressurized machine and ternary catalyzing unit, and the latter comprises silencing apparatus band annex assembly and associated pipe.Generally, petrol engine vent systems hot-side temperature is higher, need to realize heat insulation, noise reduction and function of safety protection by increasing thermal shield.For supercharging gasoline engine, the place that vent systems hot-side temperature is the highest is turbosupercharger, its maximum temperature can reach more than 1000 ℃, will be apparently higher than the petrol engine of natural aspiration, be one of region that engine thermal evil is the most serious, and component have increased a pressurized machine, made between engine air compacter, free space surplus and heat insulation safety clearance are squeezed, thereby the layout of hot junction thermal shield, shape, performance and processing have all been proposed to very large challenge.
Summary of the invention
The integrated form thermal shield assembly that the object of this invention is to provide a kind of supercharging gasoline engine, its shape and structure is succinct, pressurized machine and ternary catalyzing unit can be done to as a whole carry out heat insulation, noise reduction and protection, is conducive to improve intensity and meets mode requirement, and easily manufacturing, is convenient to install.
The integrated form thermal shield assembly of a kind of supercharging gasoline engine of the present invention, comprise ternary catalyzing unit upper cover, with the ternary catalyzing unit lower cover that the middle part of ternary catalyzing unit upper cover is connected, it is characterized in that:
One supercharger heat shield is connected to the top of described ternary catalyzing unit upper cover, and the front end of this supercharger heat shield is corresponding with one end of described ternary catalyzing unit lower cover; Described supercharger heat shield is stratiform structure, and upper and lower two-layer is hot dipping aluminium sheet, and mesosphere is ceramic fiber cardboard.The supercharger heat shield of this stratiform structure not only plays good heat-blocking action, and can effectively reduce noise.
The integrated form thermal shield assembly of described a kind of supercharging gasoline engine, the front end of supercharger heat shield described in it (being pressurized machine whirlpool end) top is a level board, this level board is provided with oval mounting hole; This ellipse mounting hole can be eliminated the deviation occurring in processing, installation process;
The front center of described supercharger heat shield is provided with boss, for providing to the actuator of pressurized machine exhaust gas control valve, dodges space, is beneficial to charger turbine and periphery part to carry out heat insulation;
The front end bottom of described supercharger heat shield is provided with stiffening rib and resilient clip; Described resilient clip is S-type, by three sections of flat boards and two sections of arc transition plates, form two clamping slots, one of them clamping slot is riveted on supercharger heat shield body, another clamping slot is clamped on cylinder rack as elastic restraint point, to improve supercharger heat shield intensity and the mode of improving high blower thermal shield.
The first circular mounting hole is arranged at the top in described supercharger heat shield stage casing, by bolt, is arranged on ternary catalyzing unit; Pit is arranged at the bottom in described supercharger heat shield stage casing; The technique hook that this pit is motor provides dodges space.
The rear end of described supercharger heat shield (being ternary catalyzing unit end) is a tablet, has the second circular mounting hole on this tablet;
Described oval mounting hole is corresponding with two mounting holes in ternary catalyzing unit upper cover respectively with the second circular mounting hole, and with a construction bolt, is connected and fixed respectively.
The integrated form thermal shield assembly of described a kind of supercharging gasoline engine, the line of centres in the oval mounting hole described in it on supercharger heat shield, the first circular mounting hole and the second circular mounting hole is triangle.This distributed architecture triangular in shape, can effectively improve the intensity of supercharger heat shield
Compared with prior art, tool has the following advantages in the present invention:
1) the present invention does as a whole carry out heat insulation, noise reduction and protection by pressurized machine and ternary catalyzing unit, simplifies the structure and shape, has reduced the requirement to processing technology, product is easily processed, and be conducive to cost control.
2) the present invention has adopted perforation stiffening rib to add mounting points structure, and mounting points is positioned at and connects on stiffening rib, can improve intensity, the mode of thermal shield, is conducive to extend the working life of product.
3) supercharger heat shield of the present invention has been used the resilient clip structure of riveted type, utilize clamp elastic force to fix a little, on pressurized machine, do not need special casting lug, be subject to space constraint less, and as constraint point, can reduce the vibration of structure itself, guarantee product reliability.
4) supercharger heat shield of the present invention also can be used for a kind of integrated form thermal shield assembly, as a kind of overall structure, pressurized machine and ternary catalyzing unit is carried out to heat insulation protection together with ternary catalyzing unit upper cover, ternary catalyzing unit lower cover.
Accompanying drawing explanation
Fig. 1 is integrated form thermal shield assembly schematic diagram of the present invention;
Fig. 2 is supercharger heat shield structural representation of the present invention;
Fig. 3 is resilient clip structural representation of the present invention;
Fig. 4 is assembly schematic diagram of the present invention.
In figure: 1-supercharger heat shield, 2-ternary catalyzing unit upper cover, 3-ternary catalyzing unit lower cover, the oval mounting hole of 4-, 5-the first circular mounting hole, 6-the second circular mounting hole, 7-pit, 8-resilient clip, 9-boss, 10-connects stiffening rib, 11-is dull and stereotyped, 12-transition plate, 13-pressurized machine, 14-ternary catalyzing unit, 15-cylinder rack.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 1, Fig. 2 and Fig. 3, the integrated form thermal shield assembly of a kind of supercharging gasoline engine of the present invention, comprise ternary catalyzing unit upper cover 2, with the ternary catalyzing unit lower cover 3 that the middle part of ternary catalyzing unit upper cover is connected, it is characterized in that:
One supercharger heat shield 1 is connected to the top of described ternary catalyzing unit upper cover 2, and the front end of this supercharger heat shield is corresponding with one end of described ternary catalyzing unit lower cover 3; Described supercharger heat shield 1 is stratiform structure, and upper and lower two-layer is hot dipping aluminium sheet, and mesosphere is ceramic fiber cardboard.
Further, the front end of described supercharger heat shield 1 (being pressurized machine whirlpool end) top is a level board, and this level board is provided with oval mounting hole 4; This ellipse mounting hole can be eliminated the deviation occurring in processing, installation process;
The front center of described supercharger heat shield 1 is provided with boss 9, for providing to the actuator of pressurized machine exhaust gas control valve, dodges space, is beneficial to charger turbine and periphery part to carry out heat insulation;
The front end bottom of described supercharger heat shield 1 is provided with and connects stiffening rib 10 and resilient clip 8; Described resilient clip 8 is S-type, by three sections of flat boards 11 and two sections of arc transition plates 12, form two clamping slots, one of them clamping slot is riveted on supercharger heat shield body 1, another clamping slot is clamped on cylinder rack 15 as elastic restraint point, to improve supercharger heat shield intensity and the mode of improving high blower thermal shield.
The first circular mounting hole 5 is arranged at the top in described supercharger heat shield 1 stage casing, by bolt, is arranged on ternary catalyzing unit 14; Pit 7 is arranged at the bottom in described supercharger heat shield 1 stage casing; The technique hook that this pit is motor provides dodges space.
The rear end of described supercharger heat shield 1 (being ternary catalyzing unit end) is a tablet, has the second circular mounting hole 6 on this tablet;
Described oval mounting hole 4 is corresponding with two mounting holes in ternary catalyzing unit upper cover respectively with the second circular mounting hole 6, and with a construction bolt, is connected and fixed respectively.
Further, the line of centres in the oval mounting hole on described supercharger heat shield 14, the first circular mounting hole 5 and the second circular mounting hole 6 is triangle.This distributed architecture triangular in shape, can effectively improve the intensity of supercharger heat shield
Actual working state of the present invention is referring to Fig. 4: in the practice of engineering, need first ternary catalyzing unit lower cover 3 is assembled on ternary catalyzing unit 14, be re-used as an integral installation and be fitted on pressurized machine 13; Then ternary catalyzing unit upper cover 2 is assembled on ternary catalyzing unit 14; Finally assemble supercharger heat shield 1.
The present invention has adopted resilient clip structure and has connected stiffening rib and added mounting points structure, has reduced the requirement to processing technology and mounting process, and has improved reliability.This supercharger heat shield also can be used for a kind of integrated form thermal shield assembly, as a kind of overall structure, pressurized machine and ternary catalyzing unit is carried out to heat insulation, noise reduction and protection together with ternary catalyzing unit upper cover, ternary catalyzing unit lower cover.
Claims (4)
1. an integrated form thermal shield assembly for supercharging gasoline engine, comprises ternary catalyzing unit upper cover (2), the ternary catalyzing unit lower cover (3) being connected with the middle part of ternary catalyzing unit upper cover, it is characterized in that:
One supercharger heat shield (1) is connected to the top of described ternary catalyzing unit upper cover (2), and the front end of this supercharger heat shield is corresponding with one end of described ternary catalyzing unit lower cover (3); Described supercharger heat shield (1) is stratiform structure, and upper and lower two-layer is hot dipping aluminium sheet, and mesosphere is ceramic fiber cardboard.
2. the integrated form thermal shield assembly of a kind of supercharging gasoline engine according to claim 1, is characterized in that: the upper front end of described supercharger heat shield (1) is a level board, and this level board is provided with oval mounting hole (4); The front center of described supercharger heat shield (1) is provided with boss (9); The front end bottom of described supercharger heat shield (1) is provided with and connects stiffening rib (10) and resilient clip (8);
The first circular mounting hole (5) is arranged at the top in described supercharger heat shield (1) stage casing, by bolt, is arranged on ternary catalyzing unit (14); Pit (7) is arranged at the bottom in described supercharger heat shield (1) stage casing;
The rear end of described supercharger heat shield (1) is a tablet, has the second circular mounting hole (6) on this tablet;
Described oval mounting hole (4) is corresponding with two mounting holes in ternary catalyzing unit upper cover (2) respectively with the second circular mounting hole (6), and with a construction bolt, is connected and fixed respectively.
3. the integrated form thermal shield assembly of a kind of supercharging gasoline engine according to claim 1 and 2, it is characterized in that: described resilient clip (8) is S-type, by three sections of flat boards (11) and two sections of arc transition plates (12), form two clamping slots, it is upper that one of them clamping slot is riveted on supercharger heat shield body (1), and another clamping slot is clamped on cylinder rack (15) as elastic restraint point.
4. the integrated form thermal shield assembly of a kind of supercharging gasoline engine according to claim 1 and 2, is characterized in that: the line of centres in the oval mounting hole (4) on described supercharger heat shield (1), the first circular mounting hole (5) and the second circular mounting hole (6) is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119049.4A CN104100347B (en) | 2013-04-08 | 2013-04-08 | A kind of integrated form heat shield assembly of supercharging gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310119049.4A CN104100347B (en) | 2013-04-08 | 2013-04-08 | A kind of integrated form heat shield assembly of supercharging gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104100347A true CN104100347A (en) | 2014-10-15 |
| CN104100347B CN104100347B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310119049.4A Active CN104100347B (en) | 2013-04-08 | 2013-04-08 | A kind of integrated form heat shield assembly of supercharging gasoline engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104100347B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788659A (en) * | 2022-11-30 | 2023-03-14 | 重庆长安汽车股份有限公司 | Booster type exhaust hot end heat shield assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151742A (en) * | 1995-11-29 | 1997-06-10 | Murai Shoji Kk | Heat insulating cover for turbocharger and manufacture thereof |
| EP1586443A2 (en) * | 2004-04-16 | 2005-10-19 | Centre d'Etude et de Recherche pour l'Automobile ( CERA) | Thermal and sound protective device |
| CN200949484Y (en) * | 2006-04-30 | 2007-09-19 | 重庆长安汽车股份有限公司 | Engine exhaust branch pipe thermally-insulated shroud |
| CN101331299A (en) * | 2006-01-24 | 2008-12-24 | 菲特尔莫古密封系统有限公司 | Heat shield |
| CN202100314U (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Insulating cover of gas intake manifold of supercharged diesel engine |
| CN102425479A (en) * | 2011-11-28 | 2012-04-25 | 重庆长安汽车股份有限公司 | Heat shield assembly of automobile engine exhaust manifold |
| CN202300606U (en) * | 2011-08-30 | 2012-07-04 | 沈阳斯瓦特汽车零部件有限公司 | Engine hot end assembly |
-
2013
- 2013-04-08 CN CN201310119049.4A patent/CN104100347B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09151742A (en) * | 1995-11-29 | 1997-06-10 | Murai Shoji Kk | Heat insulating cover for turbocharger and manufacture thereof |
| EP1586443A2 (en) * | 2004-04-16 | 2005-10-19 | Centre d'Etude et de Recherche pour l'Automobile ( CERA) | Thermal and sound protective device |
| CN101331299A (en) * | 2006-01-24 | 2008-12-24 | 菲特尔莫古密封系统有限公司 | Heat shield |
| CN200949484Y (en) * | 2006-04-30 | 2007-09-19 | 重庆长安汽车股份有限公司 | Engine exhaust branch pipe thermally-insulated shroud |
| CN202100314U (en) * | 2011-05-31 | 2012-01-04 | 长城汽车股份有限公司 | Insulating cover of gas intake manifold of supercharged diesel engine |
| CN202300606U (en) * | 2011-08-30 | 2012-07-04 | 沈阳斯瓦特汽车零部件有限公司 | Engine hot end assembly |
| CN102425479A (en) * | 2011-11-28 | 2012-04-25 | 重庆长安汽车股份有限公司 | Heat shield assembly of automobile engine exhaust manifold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788659A (en) * | 2022-11-30 | 2023-03-14 | 重庆长安汽车股份有限公司 | Booster type exhaust hot end heat shield assembly |
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| Publication number | Publication date |
|---|---|
| CN104100347B (en) | 2016-06-29 |
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