CN107916981A - A kind of heat-proof device and engine exhaust system - Google Patents
A kind of heat-proof device and engine exhaust system Download PDFInfo
- Publication number
- CN107916981A CN107916981A CN201711208008.7A CN201711208008A CN107916981A CN 107916981 A CN107916981 A CN 107916981A CN 201711208008 A CN201711208008 A CN 201711208008A CN 107916981 A CN107916981 A CN 107916981A
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- Prior art keywords
- heat
- exhaust pipe
- shield body
- proof device
- layer
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- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000002937 thermal insulation foam Substances 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 241001640558 Cotoneaster horizontalis Species 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 241000219146 Gossypium Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
Classifications
-
- 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
- F01N13/14—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 having thermal insulation
- F01N13/148—Multiple layers of insulating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
- F01N3/055—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air without contact between air and exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention relates to engine exhaust system technical field, in particular to a kind of heat-proof device and engine exhaust system.Heat-proof device provided by the invention include heat shield body can effectively improve Tail Pipe Temperature it is excessive to exhaust system surrounding components cause damage the problem of, heat shield body is set in the periphery wall of exhaust pipe at the same time can cover exhaust pipe comprehensively and further improve heat-proof quality, connector is set to be connected heat shield body with exhaust pipe, so that it is compact-sized, the space of automobile chassis can be effectively saved.The injection apparatus for spraying into cooling medium to the periphery wall of exhaust pipe is provided with the same time, can effectively improve the heat dissipation effect of exhaust pipe.Engine exhaust system provided by the invention, since including above-mentioned heat-proof device, also possessing has above-mentioned beneficial effect.
Description
Technical field
The present invention relates to engine exhaust system technical field, is arranged in particular to a kind of heat-proof device and engine
Gas system.
Background technology
During the engine operation of automobile, the Tail Pipe Temperature of engine exhaust system is very high, easily to row
Gas system surrounding components cause to damage.If there is thermo-labile parts around exhaust pipe, the time has been grown can be to surrounding components
Cause damage, the method used at present is that exhaust pipe is arranged in the position away from thermo-labile parts, but chassis occurs
Space is unsatisfactory for requiring, do not reach it is heat-resisting apart from the problems such as.And common heat insulation plate structure holds in the long-term driving process of automobile
The problem of being also easy to produce desoldering, vibration abnormal sound, causes the reduction of vehicle NVH performances.
During engine is run, the exhaust pipe of engine exhaust system is thermally shielded, and save automobile bottom
The space of disk is prior art problem to be solved.
The content of the invention
It is very high to improve above-mentioned Tail Pipe Temperature, the problem of easily causing to damage to exhaust system surrounding components, this
The purpose of invention is to provide a kind of heat-proof device.
Another object of the present invention is to provide a kind of engine exhaust system with above-mentioned heat-proof device.
What the embodiment of the present invention was realized in：
A kind of heat-proof device, it includes the heat shield body for being used for separated exhaust pipe and parts, and heat shield body is set in
The periphery wall of exhaust pipe；Annular gap is formed between heat shield body and exhaust pipe.For connecting the company of exhaust pipe and heat shield body
Fitting；For spraying into the injection apparatus of cooling medium to the periphery wall of exhaust pipe；Wherein, the periphery of injection apparatus and heat shield body
Wall connects, and the jet port of injection apparatus is connected with annular gap.
The heat-proof device provided in the embodiment of the present invention includes heat shield body, and can effectively to improve Tail Pipe Temperature excessive
The problem of exhaust system surrounding components are caused with damage, while the periphery wall that heat shield body is set in exhaust pipe can cover comprehensively
Lid exhaust pipe further improves heat-proof quality, sets connector to be connected heat shield body with exhaust pipe so that and it is compact-sized, can have
The space of automobile chassis is saved on effect ground.The injection apparatus for spraying into cooling medium to the periphery wall of exhaust pipe is provided with the same time,
The heat dissipation effect of exhaust pipe can be effectively improved.The heat-proof device provided in the embodiment of the present invention, can effectively improve exhaust
Tube temperature degree is high, the problem of easily causing to damage to exhaust system surrounding components, meanwhile, its is compact-sized, can be effectively saved
The space of automobile chassis.
In one embodiment of the invention：
Above-mentioned injection apparatus includes at least one playpipe, and the jet port of playpipe and the annular gap of heat shield body are tangent
Set.
In one embodiment of the invention：
Above-mentioned injection apparatus includes three playpipes.
In one embodiment of the invention：
Above-mentioned cooling medium is water, and the jet port of injection apparatus is provided with atomising device.
In one embodiment of the invention：
Above-mentioned heat shield body inner wall is provided with temperature sensor.
In one embodiment of the invention：
Above-mentioned heat-proof device further includes control device, and control device is electrically connected with temperature sensor, control device also with spray
Injection device is electrically connected.
In one embodiment of the invention：
Above-mentioned heat shield body includes the reflecting layer for reflective thermal radiation, the fixed bed for connecting parts and is used for
Heat-insulated thermal insulation layer；Wherein, along the direction away from exhaust pipe, heat shield body includes reflecting layer, thermal insulation layer and solid successively
Given layer.
In one embodiment of the invention：
Above-mentioned reflecting layer is arranged to aluminium foil reflecting layer.
In one embodiment of the invention：
Above-mentioned thermal insulation layer includes the first heat insulation foam layer, elastic layer and the second heat insulation foam layer；Elastic layer be arranged on first every
Between hot cotton layer and the second heat insulation foam layer；First side of the heat insulation foam layer away from elastic layer is connected with reflecting layer；Second is heat-insulated
Side of the cotton layer away from elastic layer is connected with fixed bed.
A kind of engine exhaust system, it includes above-mentioned any one heat-proof device and exhaust pipe, heat shield body and is arranged
In the periphery wall of exhaust pipe；Heat shield body is connected with exhaust pipe by connector.
The beneficial effect of the embodiment of the present invention is：
The heat-proof device provided in the embodiment of the present invention includes heat shield body, and can effectively to improve Tail Pipe Temperature excessive
The problem of exhaust system surrounding components are caused with damage, while the periphery wall that heat shield body is set in exhaust pipe can cover comprehensively
Lid exhaust pipe further improves heat-proof quality, sets connector to be connected heat shield body with exhaust pipe so that and it is compact-sized, can have
The space of automobile chassis is saved on effect ground.The injection apparatus for spraying into cooling medium to the periphery wall of exhaust pipe is provided with the same time,
The heat dissipation effect of exhaust pipe can be effectively improved.The present invention's is the heat-proof device provided in embodiment, can effectively improve row
Tracheae temperature is high, the problem of easily causing to damage to exhaust system surrounding components, meanwhile, its is compact-sized, can effectively save
Save the space of automobile chassis.
The engine exhaust system provided in the embodiment of the present invention, due to including above-mentioned heat-proof device, also having
Have above-mentioned beneficial effect.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the overall structure diagram under the first visual angle for the heat-proof device that the embodiment of the present invention 1 provides；
Fig. 2 is the overall structure diagram under the second visual angle for the heat-proof device that the embodiment of the present invention 1 provides；
Fig. 3 is the overall structure diagram under the 3rd visual angle for the heat-proof device that the embodiment of the present invention 1 provides；
Fig. 4 is the overall structure diagram under the 4th visual angle for the heat-proof device that the embodiment of the present invention 1 provides；
Fig. 5 is the sectional view of the heat shield body for the heat-proof device that the embodiment of the present invention 1 provides.
Icon：10- heat-proof devices；100- heat shield bodies；110- annular gaps；120- reflecting layer；130- thermal insulation layers；132-
First heat insulation foam layer；134- elastic layers；136- the second heat insulation foam layers；140- fixed beds；200- exhaust pipes；300- connectors；
400- injection apparatus；410- playpipes；500- temperature sensors.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to explanation, the side of the instruction such as term " on ", " under ", " interior ", " outer " in the description of the embodiment of the present invention
Position or position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when the side usually put
Position or position relationship, are for only for ease of the description present invention and simplify description, rather than instruction or the device or member that imply meaning
Part must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
Embodiment 1：
Refer to Fig. 1 to Fig. 5, the present embodiment provides a kind of heat-proof device 10, it include being used for separated exhaust pipe 200 and
The heat shield body 100 of parts, heat shield body 100 are set in the periphery wall of exhaust pipe 200；Heat shield body 100 and exhaust pipe 200
Between formed annular gap 110.For connecting the connector 300 of exhaust pipe 200 and heat shield body 100.For to exhaust pipe 200
Periphery wall spray into cooling medium injection apparatus 400.Wherein, injection apparatus 400 is connected with the periphery wall of heat shield body 100,
The jet port of injection apparatus 400 is connected with annular gap 110.
The heat-proof device 10 provided in the embodiment of the present invention, which includes heat shield body 100, can effectively improve exhaust pipe 200
Temperature excessive the problem of exhaust system surrounding components are caused with damage, while heat shield body 100 is set in exhaust pipe 200
Periphery wall can cover exhaust pipe 200 comprehensively and further improve heat-proof quality, set connector 300 by heat shield body 100 and exhaust
Pipe 200 connects so that and it is compact-sized, the space of automobile chassis can be effectively saved.It is provided with the same time for exhaust pipe 200
Periphery wall sprays into the injection apparatus 400 of cooling medium, can effectively improve the heat dissipation effect of exhaust pipe 200.The implementation of the present invention
The heat-proof device 10 provided in example, can effectively improve 200 temperature of exhaust pipe height, easily exhaust system surrounding components are caused
The problem of damage, meanwhile, its is compact-sized, can be effectively saved the space of automobile chassis.
In the present embodiment, injection apparatus 400 includes at least one playpipe 410, the jet port of playpipe 410 with it is heat-insulated
The 110 tangent setting of annular gap of cover body 100.By 110 phase of annular gap of the jet port of playpipe 410 and heat shield body 100
Cut setting so that injection apparatus 400 enters the spiral discharge of periphery wall of cooling medium along the exhaust pipe 200 in annular gap,
Increase cooling device residence time in annular gap, at the same time so that cooling medium covers the periphery of exhaust pipe 200 comprehensively
Wall, can effectively strengthen the heat dissipation effect of heat-proof device 10, while increase the utilization rate of cooling medium, be effectively reduced heat dissipation dress
The use cost put.Need what is illustrated, playpipe 410 and the connection mode of heat shield body 100 are not defined here, can
With understanding, in other specific embodiments, playpipe 410 and heat shield body 100 can also be passed through according to the demand of user
Other connection modes are attached, such as by footpath of the jet port of playpipe 410 along the annular gap 110 of heat shield body 100
Set to direction etc..Alternatively, in the present embodiment, injection apparatus 400 includes three playpipes 410.It should be noted that this
In the quantity of playpipe 410 is not defined, it is possible to understand that, can also be according to user in other specific embodiments
Demand, the quantity of playpipe 410 is arranged to two, four or five etc..
In the present embodiment, it is water to cool down medium, and the jet port of injection apparatus 400 is provided with atomising device and (does not show in figure
Go out).Using water as cooling medium, meet good cooling performance, while water is taken conveniently as cooling medium, and price compared with
For material benefit, the use cost of heat-proof device 10 can be effectively reduced.Set atomising device to be atomized water, avoid directly using water
Carrying out cooling causes 200 temperature decrease of exhaust pipe, causes tail gas to flow back or damage exhaust pipe 200.It should be noted that in this reality
Apply in example, cooling medium be not limited to water, it is possible to understand that, in other specific embodiments, can also according to the demand of user,
Cooling medium is made of other materials, such as cold air etc..
Alternatively, in the present embodiment, 100 inner wall of heat shield body is provided with temperature sensor 500.Set temperature sensor
500, the temperature of 200 periphery wall of exhaust pipe can be monitored, cooling measure is taken in time easy to user.It should be understood that
In other specific embodiments, temperature sensor 500 can also be not provided with according to the demand of user.Specifically, in the present embodiment
In, heat-proof device 10 further includes control device (not shown), and control device is electrically connected with temperature sensor 500, control dress
Put and be also electrically connected with injection apparatus 400.In implementation process, when the temperature of temperature sensor 500 reaches preset value, temperature passes
The signal is passed to control device by sensor 500, and control device will start injection apparatus 400, and injection apparatus 400 is to exhaust pipe
200 spray cooling media, and then exhaust pipe 200 is cooled down.It should be understood that in other specific embodiments,
Control device can be not provided with, using existing control device according to the demand of user.
In the present embodiment, heat shield body 100 includes the reflecting layer 120 for reflective thermal radiation, for connecting parts
Fixed bed 140 and for heat-insulated thermal insulation layer 130；Wherein, along away from exhaust pipe 200 direction, heat shield body 100
Include reflecting layer 120, thermal insulation layer 130 and fixed bed 140 successively.Along the direction away from exhaust pipe 200, by heat-proof device 10
Be arranged to include reflecting layer 120, thermal insulation layer 130 and fixed bed 140 successively, wherein will hair layer be arranged on innermost layer i.e. near
The place of exhaust pipe 200, effectively can reflect the heat from exhaust pipe 200, partly pass to the heat of heat-proof device 10
Amount can further be isolated through thermal insulation layer 130.It is excessive to zero around exhaust system that 200 temperature of exhaust pipe can effectively be improved
Part causes the problem of damage.It should be understood that in other specific embodiments, can also be according to the demand of user, by heat shield
Body 100 is arranged to other structures, for example with only including thermal insulation layer 130 or reflecting layer 120.
Specifically, in the present embodiment, reflecting layer 120 is arranged to aluminium foil reflecting layer 120.It should be noted that here simultaneously
The material in reflecting layer 120 is not defined, it is possible to understand that, can also be according to the need of user in other specific embodiments
Ask, reflecting material is arranged to nano material or silver foil reflecting layer 120 etc..
In the present embodiment, thermal insulation layer 130 includes the first heat insulation foam layer 132,134 and second heat insulation foam layer of elastic layer
136；Elastic layer 134 is arranged between the first heat insulation foam layer 132 and the second heat insulation foam layer 136；First heat insulation foam layer 132 is remote
The side of elastic layer 134 is connected with reflecting layer 120；Side of the second heat insulation foam layer 136 away from elastic layer 134 and fixed bed 140
Connection.Thermal insulation layer 130 is arranged to include the first heat insulation foam layer 132,134 and second heat insulation foam layer 136 of elastic layer, between
Every setting the first heat insulation foam layer 132 and the second heat insulation foam layer 136, increase heat insulation.Meanwhile first thermal insulation layer 130 with
And elastic layer 134 is set to bear the pressure outwards applied by thermal expansion between second thermal insulation layer 130；Shut down heel row tracheae
During 200 shrinkage, bounce in itself that have using elastic layer 134 automatically restores to original state.Setting using the present invention
Thermal insulation layer 130 possesses and has the advantages that good heat-insulation effect, simple in structure, stability is strong and good manufacturability.Need what is illustrated, here every
Thermosphere 130 is not limited to a kind of set-up mode in the present embodiment, it is possible to understand that, can also root in other specific embodiments
According to the demand of user, thermal insulation layer 130 is arranged to not include elastic layer 134.Alternatively, in the present embodiment, the first heat insulation foam
Layer 132 is disposed as heat-insulated PET acupuncture cottons with the second heat insulation foam layer 136 and is made.Specifically, in the present embodiment, by elastic layer
134 are arranged to high-temperature resistant rubber layer etc..
The heat-proof device 10 provided in the embodiment of the present invention, which includes heat shield body 100, can effectively improve exhaust pipe 200
Temperature excessive the problem of exhaust system surrounding components are caused with damage, while heat shield body 100 is set in exhaust pipe 200
Periphery wall can cover exhaust pipe 200 comprehensively and further improve heat-proof quality, set connector 300 by heat shield body 100 and exhaust
Pipe 200 connects so that and it is compact-sized, the space of automobile chassis can be effectively saved.It is provided with the same time for exhaust pipe 200
Periphery wall sprays into the injection apparatus 400 of cooling medium, can effectively improve the heat dissipation effect of exhaust pipe 200.The implementation of the present invention
The heat-proof device 10 provided in example, can effectively improve 200 temperature of exhaust pipe height, easily exhaust system surrounding components are caused
The problem of damage, meanwhile, its is compact-sized, can be effectively saved the space of automobile chassis.
Embodiment 2：
The embodiment of the present invention also provides a kind of engine exhaust system, and engine exhaust system includes above-mentioned heat-insulated dress
10 and exhaust pipe 200 are put, heat shield body 100 is set in the periphery wall of exhaust pipe 200；Heat shield body 100 is logical with exhaust pipe 200
Connector 300 is crossed to connect.
The engine exhaust system provided in the embodiment of the present invention, due to including above-mentioned heat-proof device 10,
Possessing has above-mentioned beneficial effect.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. heat-proof device, it is characterised in that including：For separated exhaust pipe and the heat shield body of parts, the heat shield body is set in the periphery wall of exhaust pipe；It is described Annular gap is formed between heat shield body and exhaust pipe；For connecting the connector of exhaust pipe and the heat shield body；For spraying into the injection apparatus of cooling medium to the periphery wall of exhaust pipe；Wherein, the injection apparatus is connected with the periphery wall of the heat shield body, the jet port of the injection apparatus and the ring Shape gap connects.
- 2. heat-proof device according to claim 1, it is characterised in that the injection apparatus includes at least one playpipe, The jet port of the playpipe and the tangent setting of annular gap of the heat shield body.
- 3. heat-proof device according to claim 2, it is characterised in that the injection apparatus includes three playpipes.
- 4. heat-proof device according to claim 1, it is characterised in that the cooling medium is water, the injection apparatus Jet port is provided with atomising device.
- 5. heat-proof device according to claim 1, it is characterised in that the heat shield body inner wall is provided with temperature sensing Device.
- 6. heat-proof device according to claim 5, it is characterised in that the heat-proof device further includes control device, described Control device is electrically connected with the temperature sensor, and the control device is also electrically connected with the injection apparatus.
- 7. heat-proof device according to claim 1, it is characterised in that the heat shield body is included for reflective thermal radiation Reflecting layer, the fixed bed for connecting parts and for heat-insulated thermal insulation layer；Wherein, along away from exhaust pipe direction, Heat shield body includes the reflecting layer, the thermal insulation layer and the fixed bed successively.
- 8. heat-proof device according to claim 7, it is characterised in that the reflecting layer is arranged to aluminium foil reflecting layer.
- 9. heat-proof device according to claim 7, it is characterised in that the thermal insulation layer includes the first heat insulation foam layer, elasticity Layer and the second heat insulation foam layer；The elastic layer is arranged between the first heat insulation foam layer and the second heat insulation foam layer； Side of the first heat insulation foam layer away from the elastic layer is connected with the reflecting layer；The second heat insulation foam layer is away from described The side of elastic layer is connected with the fixed bed.
- 10. a kind of engine exhaust system, it is characterised in that it is any one that the engine exhaust system includes claim 1 to 9 Heat-proof device and exhaust pipe described in, the heat shield body are set in the periphery wall of the exhaust pipe；The heat shield body It is connected with the exhaust pipe by the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208008.7A CN107916981A (en) | 2017-11-27 | 2017-11-27 | A kind of heat-proof device and engine exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208008.7A CN107916981A (en) | 2017-11-27 | 2017-11-27 | A kind of heat-proof device and engine exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107916981A true CN107916981A (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711208008.7A Pending CN107916981A (en) | 2017-11-27 | 2017-11-27 | A kind of heat-proof device and engine exhaust system |
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| CN (1) | CN107916981A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927609A (en) * | 2020-09-04 | 2020-11-13 | 上海元城汽车技术有限公司 | Heat shield |
| CN112594036A (en) * | 2020-12-10 | 2021-04-02 | 三一汽车起重机械有限公司 | Dust fall system and mobile crane |
| CN116771497A (en) * | 2023-08-25 | 2023-09-19 | 江苏中奕和创智能科技有限公司 | Generator set with silencing and smoke removing assembly |
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| US4977741A (en) * | 1988-04-05 | 1990-12-18 | Brunswick Corporation | Combination exhaust manifold and exhaust elbow for marine propulsion system |
| JP2011157878A (en) * | 2010-02-01 | 2011-08-18 | Toyota Motor Corp | Water-cooling adapter |
| CN104819045A (en) * | 2015-04-17 | 2015-08-05 | 阿尔特汽车技术股份有限公司 | Cold water jacket type exhaust pipe |
| WO2016072943A1 (en) * | 2014-11-04 | 2016-05-12 | Ford Otomotiv Sanayi Anonim Şirketi | An internal combustion engine providing waste heat recovery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4977741A (en) * | 1988-04-05 | 1990-12-18 | Brunswick Corporation | Combination exhaust manifold and exhaust elbow for marine propulsion system |
| JP2011157878A (en) * | 2010-02-01 | 2011-08-18 | Toyota Motor Corp | Water-cooling adapter |
| WO2016072943A1 (en) * | 2014-11-04 | 2016-05-12 | Ford Otomotiv Sanayi Anonim Şirketi | An internal combustion engine providing waste heat recovery |
| CN104819045A (en) * | 2015-04-17 | 2015-08-05 | 阿尔特汽车技术股份有限公司 | Cold water jacket type exhaust pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927609A (en) * | 2020-09-04 | 2020-11-13 | 上海元城汽车技术有限公司 | Heat shield |
| CN112594036A (en) * | 2020-12-10 | 2021-04-02 | 三一汽车起重机械有限公司 | Dust fall system and mobile crane |
| CN116771497A (en) * | 2023-08-25 | 2023-09-19 | 江苏中奕和创智能科技有限公司 | Generator set with silencing and smoke removing assembly |
| CN116771497B (en) * | 2023-08-25 | 2023-11-10 | 江苏中奕和创智能科技有限公司 | Generator set with silencing and smoke removing assembly |
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Application publication date: 20180417 |