CN115788659A - Booster type exhaust hot end heat shield assembly - Google Patents
Booster type exhaust hot end heat shield assembly Download PDFInfo
- Publication number
- CN115788659A CN115788659A CN202211522795.3A CN202211522795A CN115788659A CN 115788659 A CN115788659 A CN 115788659A CN 202211522795 A CN202211522795 A CN 202211522795A CN 115788659 A CN115788659 A CN 115788659A
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- supercharger
- cover
- way catalyst
- booster
- hot end
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- 239000003054 catalyst Substances 0.000 claims abstract description 94
- 239000002184 metal Substances 0.000 claims description 21
- 230000035939 shock Effects 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 11
- 238000013461 design Methods 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The invention belongs to the technical field of automobile engines, and particularly relates to a supercharger type exhaust hot end heat shield assembly, which comprises: a supercharger cover mounted on the supercharger and covering the supercharger; a catalyst cover mounted on the three-way catalyst and covering the three-way catalyst; the oil baffle plates are arranged right below an oil return port of the supercharger and above the three-way catalyst; the booster cover and the catalyst cover are tightly jointed. The purpose is as follows: the close connection of the supercharger cover and the catalyst cover improves the heat preservation and ignition performance of the catalyst and reduces the cost; simultaneously, with the oil baffle, shelter from the oil leak that the booster oil return opening appears for oil droplet directly flows to the ground after dropping on the oil baffle, effectively prevents that oil droplet from dropping to the heat source and arousing the risk of catching fire.
Description
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to a heat shield assembly for an exhaust hot end of a supercharger.
Background
The engine exhaust system is divided into a hot end and a cold end according to the temperature, wherein the hot end comprises an exhaust manifold, a supercharger and a three-way catalyst, and the cold end comprises a silencer belt accessory assembly and related pipelines. In general, the hot end of an engine exhaust system is high in temperature, and heat insulation, noise reduction and safety protection functions need to be achieved by adding a heat insulation cover. For a supercharged engine (particularly a supercharged gasoline engine), the temperature of the hot end of an exhaust system is obviously higher than that of a naturally aspirated gasoline engine, the highest temperature of the hot end of the engine can reach more than 1000 ℃, and the highest temperature is one of the areas with the most serious heat damage of the engine.
The Chinese invention patent (publication number: CN103206289 a) discloses a hot end heat shield assembly of a supercharged engine, which takes a supercharger and a three-way catalyst as a whole for heat insulation, noise reduction and protection, simplifies the structure and the shape, is convenient to install, reduces the requirement on the processing technology, facilitates the processing of products and is beneficial to cost control.
However, according to the patent, the risk of overheating damage caused by oil leakage of an oil return opening of the supercharger is not considered, the supercharger is not in close transition connection with a heat insulation cover of the catalyst, a gap is too large, heat convection heat dissipation is too fast under the action of a heat dissipation fan of an automobile, the heat preservation and ignition performance of the catalyst is poor, certain heat damage is caused to peripheral parts, and the temperature resistance of materials of the peripheral parts needs to be improved, so that the cost is increased.
Disclosure of Invention
The purpose of the invention is: the heat-insulation and ignition performance of the catalyst is improved and the cost is reduced by tightly connecting the supercharger cover and the catalyst cover; simultaneously, with the oil baffle, shelter from the oil leak that the booster oil return opening appears for oil droplet directly flows to the ground after dropping on the oil baffle, effectively prevents that oil droplet from dropping to the heat source and arousing the risk of catching fire.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a supercharger-type exhaust hot end heat shield assembly comprising:
a supercharger cover mounted on the supercharger and covering the supercharger;
the catalyst cover is arranged on the three-way catalyst and covers the three-way catalyst;
the oil baffle plates are arranged right below an oil return port of the supercharger and above the three-way catalyst;
the booster cover and the catalyst cover are tightly jointed.
Further limiting, the supercharger cover and the catalyst cover are both of a layered structure, the layered structure sequentially comprises an outer metal plate, a middle ceramic fiber layer and an inner metal plate from outside to inside, and the edge of the outer metal plate is completely flanged and wraps the edge of the inner metal plate. By the structural design, the edges of the outer-layer metal plate and the inner-layer metal plate are wrapped by the turned edges of the outer-layer metal plate, so that the layered structure forms a whole with high strength, the ceramic fibers can be prevented from falling off under the vibration action of an engine, and the practicability is high.
Further define, the booster includes executor and volute, the booster cover is worn to establish between executor and the volute, and the cladding is in the volute outside. Due to the structural design, the problems that the gap caused by wrapping the supercharger cover from the outside of the actuator is too large, the hot air escapes too fast are avoided, and the practicability is high.
Further define, the booster cover includes that the booster covers under cover and the booster on the booster, the equal fixed mounting of cover under cover and the booster on the booster is covered under the booster, cover fixed connection, and closely link up under cover and the booster on the booster. Such structural design divide into cover under booster upper shield and the booster to the booster cover, and simultaneously with booster fixed connection to mutual fixed connection, and closely link up, when guaranteeing the seal, the installation of being convenient for, the practicality is stronger.
Further inject, the upper cover of the supercharger is riveted with a first rivet nut, the lower cover of the supercharger is provided with a first long round hole, a bolt penetrates through the first long round hole, and the bolt is screwed in the first rivet nut. Such structural design, through mutually supporting of first rivet nut, first slotted hole and bolt, accomplish the fixed connection between booster upper shield and the booster lower shield, simple structure, simple to operate, the practicality is stronger.
Further inject, cover under booster upper shield and the booster and all install the shock pad that has the via hole, the fixed lug that is equipped with on the booster, the lug of booster passes through the shock pad and is connected with booster upper shield and booster lower cover respectively. Due to the structural design, the upper cover and the lower cover of the supercharger are mounted through the shock absorption pad, so that the assembly deviation is adjusted; meanwhile, the vibration damping device can also be used for damping between the supercharger and the upper cover and between the supercharger and the lower cover of the supercharger, and has strong practicability.
Further prescribe a limit to, the shock pad is including the wire net that is located booster upper shield both sides and the gasket that is located the wire net outside, the gasket is the loop configuration of personally submitting L shape for the cross section. Due to the structural design, through the punch forming of the gasket, materials can be effectively saved, the manufacturing process is simplified, and the efficiency is improved; the steel wire net is coiled by steel wires with certain length in the die, and then is extruded through axial sizing, and finally is formed into the steel wire net with required specification and shape, so that the manufacturing is convenient, and the practicability is high.
Further inject, the catalyst casing includes three way catalyst converter front shroud and three way catalyst converter back shroud, the three way catalyst converter back shroud is located three way catalyst converter and is close to cylinder body one side, three way catalyst converter back shroud edge riveting has the second nut rivet, fixed mounting has T type support on the three way catalyst converter, the second slotted hole has been seted up on the three way catalyst converter front shroud, wear to be equipped with the bolt in the second slotted hole, the bolt passes T type support spiro union on the second nut rivet. By means of the structural design, the T-shaped support, the second long circular hole, the bolt and the second rivet nut are matched with one another, the three-way catalyst front cover, the three-way catalyst rear cover and the three-way catalyst are fixedly connected, and the three-way catalyst fixing device is simple in structure, convenient to install and high in practicability.
Further inject, the oxygen sensor wire harness support who is used for fixed pencil is installed to the three way catalyst converter front shroud outside, oxygen sensor wire harness support is through high corrosion resistance stainless steel rivet and three way catalyst converter front shroud riveting fixation. Such structural design through the good characteristic of high corrosion resistance stainless steel rivet corrosion resistance for whole car does not rust in corrosion resistance test and customer's use, and the practicality is stronger.
Further prescribe a limit, the oil baffle is provided with a chute. Such structural design, the accessible spout guides the fluid that drips on the oil baffle for fluid drips to ground more easily, and the practicality is stronger.
Further, an EGR valve is connected to the three-way catalyst, and the oil baffle is located between the three-way catalyst and the EGR valve. Such structural design, through the thermal-insulated function that the oil baffle possesses, it arranges between EGR valve and three way catalyst converter, shelters from the radiant heat of three way catalyst converter effectively, prevents that thermal radiation harm from resulting in the EGR valve to become invalid, and the practicality is stronger.
Further limit, still include and be located axle ball cage, bearing and rubber dust cover top, and be located the drive shaft heat exchanger that separates of three way catalyst converter below. Such structural design can effectively prevent three way catalyst converter's heat radiation, leads to the problem of ball cage bearing lubrication inefficacy and the ageing inefficacy of rubber dust cover, and the practicality is stronger.
The invention adopting the technical scheme has the following advantages:
1. through the tight connection of the supercharger cover and the catalyst cover, the problems that the catalyst has poor heat preservation and ignition performance due to the fact that the supercharger is not in tight transition connection with the catalyst heat insulation cover and gaps are too large, and the catalyst is too fast in heat convection and heat dissipation under the action of an automobile heat dissipation fan, and peripheral parts need to be improved in temperature resistance due to certain heat damage, so that the cost is increased are solved; meanwhile, the oil baffle plate is used for shielding oil leakage at an oil return port of the supercharger, so that oil drops directly flow to the ground after dropping on the oil baffle plate, and ignition risk caused by the fact that the oil drops drop on a heat source is effectively prevented;
2. the edge of the inner metal plate is wrapped by the edge of the outer metal plate in a flanging way, so that the laminated structure forms a whole with higher strength, the ceramic fiber can be prevented from falling off under the vibration action of an engine, and the practicability is higher;
3. the upper cover and the lower cover of the supercharger are mounted through the shock absorption pad, so that the effect of adjusting assembly deviation is achieved; meanwhile, the shock absorption device can also be used for the shock absorption effect between the supercharger and the upper cover and the lower cover of the supercharger, and has stronger practicability;
4. through the punch forming of the gasket, materials can be effectively saved, the manufacturing process is simplified, and the efficiency is improved; the steel wire mesh is formed by axially sizing and extruding steel wires with certain length after the steel wires are coiled in the die, and finally the steel wire mesh with the required specification and shape is formed, so that the manufacturing is convenient, and the practicability is high;
5. through the thermal-insulated function that the oil baffle possesses, it arranges between EGR valve and three way catalyst converter, shelters from the radiant heat of three way catalyst converter effectively, prevents that thermal radiation harm from resulting in the EGR valve to become invalid, and the practicality is stronger.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of an embodiment of a hot end heat shield assembly for exhaust of a supercharger of the present invention;
FIG. 2 is a schematic diagram of an exploded view of an embodiment of a supercharger type exhaust hot end heat shield assembly according to the present invention;
FIG. 3 is a schematic structural view of an upper cover portion of a supercharger in an embodiment of an exhaust hot end heat shield assembly of the supercharger of the present invention;
FIG. 4 is a schematic cross-sectional view of a shock pad portion in an embodiment of an exhaust hot end heat shield assembly of a supercharger of the present invention;
FIG. 5 is a schematic structural diagram of a lower cover portion of a supercharger in an embodiment of an exhaust hot end heat shield assembly of the supercharger of the present invention;
FIG. 6 is a schematic structural diagram of a front cover portion of a three-way catalyst in an embodiment of a heat shield assembly for an exhaust hot end of a supercharger of the present invention;
FIG. 7 is a schematic structural diagram of a rear cover portion of a three-way catalyst in an embodiment of a supercharger type exhaust hot end heat shield assembly of the present invention;
FIG. 8 is a schematic structural view of an oil baffle portion in an embodiment of a heat shield assembly for an exhaust hot end of a supercharger according to the present invention;
FIG. 9 is a schematic cross-sectional view of a portion of a layered structure in an embodiment of a supercharger-type exhaust hot-end heat shield assembly according to the present invention;
the main element symbols are as follows:
an upper cover 2 of the supercharger,
The shock absorption pad 21, the steel wire mesh 212, the gasket 213, the first rivet nut 221, the second rivet nut 222,
A supercharger lower cover 3, a first long round hole 31,
A three-way catalyst front cover 4, a second long round hole 43, an oxygen sensor wire harness bracket 46, a high corrosion-resistant stainless steel rivet 47, a three-way catalyst rear cover 5,
An oil baffle plate 6, a chute 61,
A drive shaft heat shield 7,
A supercharger 9,
An EGR valve 10, an outer layer metal plate 101, an intermediate ceramic fiber layer 102, an inner layer metal plate 103,
The three-way catalyst 11.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 2, a turbocharger type exhaust hot end heat shield assembly of the present invention includes:
a supercharger cover mounted on the supercharger 9 and covering the supercharger 9;
a catalyst cover mounted on the three-way catalyst 11 and covering the three-way catalyst 11;
the oil baffle plate 6 is arranged right below an oil return port of the supercharger 9 and above the three-way catalyst 11;
the booster cover and the catalyst cover are closely connected.
As shown in fig. 9, the supercharger cover and the catalyst cover are both of a layered structure, the layered structure sequentially comprises an outer metal plate 101, a middle ceramic fiber layer 102 and an inner metal plate 103 from outside to inside, and the edge of the outer metal plate 101 is completely flanged and wrapped around the edge of the inner metal plate 103. The edges of the inner metal plate 103 are wrapped by the whole flanging of the edge of the outer metal plate 101, so that the layered structure forms a whole with higher strength, the ceramic fibers can be prevented from falling off under the vibration action of the engine, and the practicability is higher.
The supercharger 9 comprises an actuator and a volute, and the supercharger cover is arranged between the actuator and the volute in a penetrating mode and covers the outer side of the volute. Can avoid the booster cover to wrap up from the executor outside, the gap that brings is too big, the too fast risk of hot-air loss, and the practicality is stronger.
As shown in fig. 1, 3 and 5, the supercharger cover comprises an upper supercharger cover 2 and a lower supercharger cover 3, the upper supercharger cover 2 and the lower supercharger cover 3 are both fixedly mounted on the supercharger 9, and the upper supercharger cover 2 and the lower supercharger cover 3 are fixedly connected and tightly connected. Divide into cover 2 and the lower cover 3 of booster on the booster cover, and simultaneously with 9 fixed connection of booster to fixed connection each other, and closely link up, when guaranteeing the seal, the installation of being convenient for, the practicality is stronger.
As shown in fig. 3 and 5, a first rivet nut 221 is riveted to the upper cover 2 of the supercharger, a first long circular hole 31 is formed in the lower cover 3 of the supercharger, a bolt is inserted into the first long circular hole 31, and the bolt is screwed into the first rivet nut 221. Fixed connection between the supercharger upper cover 2 and the supercharger lower cover 3 is completed through mutual matching of the first riveting nut 221, the first long round hole 31 and the bolt, and the supercharger lower cover fixing device is simple in structure, convenient to install and high in practicability.
As shown in fig. 3 and 5, the upper supercharger cover 2 and the lower supercharger cover 3 are both provided with shock absorbing pads 21 with through holes, the supercharger 9 is fixedly provided with lugs, and the lugs of the supercharger 9 are respectively connected with the upper supercharger cover 2 and the lower supercharger cover 3 through the shock absorbing pads 21. The installation of the upper supercharger cover 2 and the lower supercharger cover 3 is realized through the shock absorption pad 21, so that the assembly deviation is adjusted; meanwhile, the shock absorption device can also be used for the shock absorption between the supercharger 9 and the upper supercharger cover 2 and between the supercharger cover 3, and has strong practicability.
As shown in fig. 3 to 5, the cushion 21 includes a steel wire mesh 212 located on both sides of the upper cover 2 of the supercharger and a gasket 213 located outside the steel wire mesh 212, and the gasket 213 is an annular structure with an L-shaped cross section. Through the punch forming of the gasket 213, the material can be effectively saved, the manufacturing process is simplified, and the efficiency is improved; wire net 212 is by the steel wire of certain length coil the silk back in the mould, through axial scaling-off extrusion, the last shaping is the wire net of required specification and shape, and it is convenient to make, and the practicality is strong.
As shown in fig. 6 to 7, the catalyst cover includes a three-way catalyst front cover 4 and a three-way catalyst rear cover 5, the three-way catalyst rear cover 5 is located on one side of the three-way catalyst 11 close to the cylinder body, a second rivet nut 222 is riveted on the edge of the three-way catalyst rear cover 5, a T-shaped support is fixedly installed on the three-way catalyst 11, a second long circular hole 43 is formed in the three-way catalyst front cover 4, a bolt penetrates through the second long circular hole 43 and is screwed on the second rivet nut 222 through the T-shaped support. The T-shaped support, the second long circular hole 43, the bolt and the second rivet nut 222 are matched with each other, the three-way catalyst front cover 4, the three-way catalyst rear cover 5 and the three-way catalyst 11 are fixedly connected, and the three-way catalyst rear cover fixing device is simple in structure, convenient to install and high in practicability.
As shown in fig. 6, an oxygen sensor harness bracket 46 for fixing a harness is attached to the outside of the three-way catalyst front cover 4, and the oxygen sensor harness bracket 46 is riveted to the three-way catalyst front cover 4 by a highly corrosion-resistant stainless steel rivet 47. Through the good characteristic of high corrosion resistance stainless steel rivet 47 for whole car does not rust in corrosion resistance test and customer's use, and the practicality is stronger.
As shown in fig. 8, the oil baffle 6 is provided with a sliding groove 61. Accessible spout 61 guides the fluid that drips on oil baffle 6 for fluid drips to ground more easily, and the practicality is stronger.
As shown in fig. 1, an EGR valve 10 is connected to a three-way catalyst 11, and an oil baffle 6 is located between the three-way catalyst 11 and the EGR valve 10. Through the thermal-insulated function that oil baffle 6 possessed, it arranges between EGR valve 10 and three way catalyst converter, shelters from the radiant heat of three way catalyst converter 11 effectively, prevents that thermal radiation harm from leading to EGR valve 10 to become invalid, and the practicality is stronger.
As shown in fig. 1, the drive shaft heat shield 7 is provided above the shaft ball cage, the bearings, and the rubber dust cover, and below the three-way catalyst 11. The heat radiation of the three-way catalytic converter 11 can be effectively prevented, the problems of lubrication failure of the ball cage bearing and aging failure of the rubber dust cover are caused, and the practicability is high.
The details of the supercharger type exhaust hot end heat shield assembly provided by the invention are described above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (12)
1. The utility model provides a heat exchanger assembly is kept apart to pressure booster type exhaust hot junction which characterized in that: the method comprises the following steps:
a supercharger cover mounted on the supercharger (9) and covering the supercharger (9);
a catalyst cover mounted on the three-way catalyst (11) and covering the three-way catalyst (11);
an oil baffle plate (6) which is arranged right below an oil return port of the supercharger (9) and above the three-way catalyst (11);
the booster cover and the catalyst cover are tightly jointed.
2. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, wherein: the supercharger cover and the catalyst cover are of a layered structure, the layered structure sequentially comprises an outer layer metal plate (101), a middle ceramic fiber layer (102) and an inner layer metal plate (103) from outside to inside, and the edges of the outer layer metal plate (101) are all turned over to wrap the edges of the inner layer metal plate (103).
3. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, wherein: the supercharger (9) comprises an actuator and a volute, and the supercharger cover is arranged between the actuator and the volute in a penetrating mode and covers the outer side of the volute.
4. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, wherein: the supercharger cover comprises a supercharger upper cover (2) and a supercharger lower cover (3), wherein the supercharger upper cover (2) and the supercharger lower cover (3) are fixedly installed on a supercharger (9), and the supercharger upper cover (2) and the supercharger lower cover (3) are fixedly connected and tightly connected.
5. The supercharger type exhaust hot end heat shield assembly according to claim 4, wherein: the upper cover (2) of the supercharger is riveted with a first riveting nut (221), the lower cover (3) of the supercharger is provided with a first long circular hole (31), a bolt penetrates through the first long circular hole (31), and the bolt is screwed in the first riveting nut (221).
6. The supercharger type exhaust hot end heat shield assembly according to claim 4, wherein: all install shock pad (21) that have the via hole on booster upper shield (2) and the booster lower cover (3), the fixed lug that is equipped with on booster (9), the lug of booster (9) passes through shock pad (21) and is connected with booster upper shield (2) and booster lower cover (3) respectively.
7. The exhaust hot end heat shield assembly of a supercharger type according to claim 6, wherein: shock pad (21) are including wire net (212) that are located booster upper shield (2) both sides and gasket (213) that are located wire net (212) outside, gasket (213) are the loop configuration of transversal personally submitting L shape.
8. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, wherein: the catalyst cover includes three way catalyst converter front shroud (4) and three way catalyst converter rear shroud (5), three way catalyst converter rear shroud (5) are located three way catalyst converter (11) and are close to cylinder body one side, three way catalyst converter rear shroud (5) edge riveting has second rivet nut (222), fixed mounting has T type support on three way catalyst converter (11), second slotted hole (43) have been seted up on three way catalyst converter front shroud (4), wear to be equipped with the bolt in second slotted hole (43), the bolt passes T type support spiro union on second rivet nut (222).
9. The exhaust hot end heat shield assembly of a supercharger type according to claim 8, wherein: an oxygen sensor harness support (46) used for fixing a harness is installed on the outer side of the three-way catalyst front cover (4), and the oxygen sensor harness support (46) is riveted and fixed with the three-way catalyst front cover (4) through a high-corrosion-resistance stainless steel rivet (47).
10. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, characterized in that: the oil baffle plate (6) is provided with a sliding groove (61).
11. The exhaust hot end heat shield assembly of a supercharger type according to claim 10, wherein: an EGR valve (10) is connected to the three-way catalyst (11), and the oil baffle plate (6) is located between the three-way catalyst (11) and the EGR valve (10).
12. The exhaust hot end heat shield assembly of a supercharger type according to claim 1, wherein: the device also comprises a driving shaft heat insulation cover (7) which is positioned above the shaft ball cage, the bearing and the rubber dust cover and is positioned below the three-way catalyst (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522795.3A CN115788659A (en) | 2022-11-30 | 2022-11-30 | Booster type exhaust hot end heat shield assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522795.3A CN115788659A (en) | 2022-11-30 | 2022-11-30 | Booster type exhaust hot end heat shield assembly |
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| Publication Number | Publication Date |
|---|---|
| CN115788659A true CN115788659A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211522795.3A Pending CN115788659A (en) | 2022-11-30 | 2022-11-30 | Booster type exhaust hot end heat shield assembly |
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| CN (1) | CN115788659A (en) |
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