CN110145389A - Engine catalytic converter assembly and exhaust system - Google Patents
Engine catalytic converter assembly and exhaust system Download PDFInfo
- Publication number
- CN110145389A CN110145389A CN201910474476.1A CN201910474476A CN110145389A CN 110145389 A CN110145389 A CN 110145389A CN 201910474476 A CN201910474476 A CN 201910474476A CN 110145389 A CN110145389 A CN 110145389A
- Authority
- CN
- China
- Prior art keywords
- engine
- catalytic converter
- grain catcher
- gasoline engine
- exhaust system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
-
- 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
- F01N13/009—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 two or more separate purifying devices arranged in series
- F01N13/0097—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 two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- 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
- F01N3/021—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 filters
- F01N3/023—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 filters using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
Abstract
The present invention relates to a kind of engine catalytic converter assembly and exhaust systems.The catalytic converter assembly is set in engine exhaust system, including catalyst converter main body, and is respectively arranged on the air intake structure and air outlet structure at catalyst converter main body both ends；The catalyst converter main body includes catalyst converter shell, is sequentially communicated triple mode catalytic converter and gasoline engine grain catcher in the catalyst converter shell, and take depressed structure with what the gasoline engine grain catcher was connected to；Described air intake structure one end is connected to engine exhaust system one end, the other end is connected to the triple mode catalytic converter, described air outlet structure one end is connected to the gasoline engine grain catcher, the other end is connected to the engine exhaust system other end, described that depressed structure is taken to be connected to the exhaust manifold of engine.The present invention is at low cost, control is simple and convenient, is easy to obtain the gas of burning particles object, and gas temperature is easy to reach combustion requirements temperature.
Description
Technical field
The present invention relates to automobile exhaust system technical fields, more particularly to a kind of engine catalytic converter assembly and exhaust system
System.
Background technique
The exhaust system of automobile includes exhaust system two parts under engine exhaust system and chassis, wherein engine exhaust
System is commonly abbreviated as hot end exhaust system, and exhaust system is referred to as cold end exhaust system under chassis.And in order to meet six row of state
Laws and regulations requirement is put, is arranged in exhaust system TWC (Three Way CatalyticConverter, triple mode catalytic converter)
On the basis of, GPF (Gasoline Particulate Filter, gasoline engine grain catcher) is encapsulated also in exhaust system, at
For mainstream technology route.
Currently, usually TWC (triple mode catalytic converter) is arranged in numbers of hot-side engine exhaust system, can reduce in discharge
CO, HC and NOX；And GPF (gasoline engine grain catcher) is arranged in cold end exhaust system, collect discharge in by carbon
Or Particulate Emission substance (cigarette ash) composed by the molecule (size is less than 4-20 μm) of carbide.Moreover, the particle in GPF
Object needs to be burnt using high temperature after gathering certain amount, and otherwise particulate matter will block GPF, makes its capturing efficiency
It substantially reduces, while exhaust back pressure also will increase, to influence the performance of engine.Usually increase a set of electricity outside GPF at present
Heating device, burning particulate matter is discharged after so that GPF is reached certain temperature for heating, to remove the particulate matter in GPF.But
Although very well, structure is complex for the effect of this mode eliminating particle object, at high cost, control is complicated.
Summary of the invention
Based on this, the present invention provides a kind of engine catalytic converter assembly and exhaust system, at low cost, control is simple and convenient,
It is easy to obtain the gas of burning particles object, and gas temperature is easy to reach combustion requirements temperature.
To achieve the above object, the following technical solutions are proposed by the present invention:
A kind of engine catalytic converter assembly is set in engine exhaust system, including catalyst converter main body, and is respectively arranged on
The air intake structure and air outlet structure at catalyst converter main body both ends；
The catalyst converter main body includes catalyst converter shell, and the three-element catalytic being sequentially communicated in the catalyst converter shell turns
Parallel operation and gasoline engine grain catcher, and depressed structure is taken with what the gasoline engine grain catcher was connected to；
Described air intake structure one end is connected to engine exhaust system one end, the other end and the triple mode catalytic converter connect
Logical, described air outlet structure one end is connected to the gasoline engine grain catcher, the other end and the engine exhaust system are another
End connection, it is described that depressed structure is taken to be connected to the exhaust manifold of engine.
Optionally, the air intake structure includes the inlet flange connecting with engine exhaust system one end, with the air inlet
The intake elbow of flanged joint, and the air inlet Taper Pipe being connect with the intake elbow, the air inlet Taper Pipe and the catalyst converter
The connection of shell one end.
Optionally, the air outlet structure includes the outlet flange connecting with the engine exhaust system other end, with it is described go out
The outlet bend pipe of gas flanged joint, and the air outlet taper pipe being connect with the outlet bend pipe, the air outlet taper pipe and the catalysis
The connection of the device shell other end.
Optionally, the central axis of the inlet flange and the angle of the central axis of the triple mode catalytic converter are set as
α, and 45 °≤α≤180 °；
The central axis of the triple mode catalytic converter is overlapped with the central axis of the gasoline engine grain catcher, described
The central axis angle of the central axis of outlet flange and the gasoline engine grain catcher is set as β, and 90 °≤β≤180 °.
Optionally, the axial spacing between the triple mode catalytic converter and the gasoline engine grain catcher is set as X, and
30mm≤X≤60mm。
It is optionally, described that take depressed structure include that first be connected to the exhaust manifold of engine takes tracheae and second to take gas
Pipe, described first take tracheae be connected at the gasoline engine grain catcher and the triple mode catalytic converter link position or
Be connected at the gasoline engine grain catcher, described second take tracheae be connected to the gasoline engine grain catcher and it is described go out
At depressed structure link position or it is connected at the air outlet structure.
It is optionally, described that take depressed structure further include that first on the catalyst converter shell takes gas mounting base, and described the
One takes tracheae to install takes at gas mounting base in described first；
Described to take depressed structure further include that second on the air outlet structure takes gas mounting base, and described second takes tracheae to pacify
It is taken at gas mounting base set on described second.
Optionally, further include the first sensor mounting base on the air intake structure, and be set to described depressed out
Second sensor mounting base on structure.
Optionally, the catalyst converter shell includes tubular main casing, the thermal insulation board outside the tubular main casing, and
Heat insulation foam between the tubular main casing and the thermal insulation board, the triple mode catalytic converter and the gasoline engine particle
Trap is set in the tubular main casing.
In addition, the present invention also proposes a kind of exhaust system, including engine catalytic converter assembly as described above.
In technical solution proposed by the present invention, started by the way that the air intake structure of catalytic converter assembly and air outlet structure to be installed to
In machine exhaust system, triple mode catalytic converter (TWC) and the gasoline engine grain catcher that will be integrated in catalyst converter shell
(GPF) it is arranged at numbers of hot-side engine (i.e. engine exhaust system), convenient for taking depressed structure to obtain from enmgine exhaust
The gas of high temperature (600 DEG C or more) carries out burning removing to the particulate matter that gasoline engine grain catcher captures, without additional setting
Electric heater unit simplifies structure with burning particles object, also facilitates and controls catalytic converter assembly.Further, since catalyst converter
Assembly is arranged in numbers of hot-side engine, so that taking gas structural distance enmgine exhaust closer, can be significantly reduced high-temperature gas
The distance of conveying, so that temperature reduction is less during transportation for high-temperature gas, so as to easily from engine exhaust discrimination
High-temperature gas is obtained in pipe, and burning removing is carried out to the particulate matter that gasoline engine grain catcher captures.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the stereoscopic schematic diagram one of engine catalytic converter assembly described in the embodiment of the present invention；
Fig. 2 is the stereoscopic schematic diagram two of engine catalytic converter assembly described in the embodiment of the present invention；
Fig. 3 is the stereoscopic schematic diagram three of engine catalytic converter assembly described in the embodiment of the present invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if related in the embodiment of the present invention directionality instruction (such as up, down, left, right, before and after, top,
Bottom ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
As shown in Figure 1 to Figure 3, the present invention proposes a kind of engine catalytic converter assembly, is set in engine exhaust system, packet
Catalyst converter main body 100 is included, and is respectively arranged on the air intake structure 200 and air outlet structure 300 at 100 both ends of catalyst converter main body.This is urged
Changing device main body 100 includes the triple mode catalytic converter 120 and gasoline engine grain catcher 130 integrated, so as to incite somebody to action
Triple mode catalytic converter 120 and gasoline engine grain catcher 130 are all set in numbers of hot-side engine (i.e. engine exhaust system simultaneously
System) in, realize the integrally disposed of triple mode catalytic converter 120 and gasoline engine grain catcher 130.Moreover, passing through so that catalysis
The air intake structure 200 of 100 one end of device main body is connect with engine exhaust system one end, for conveying into catalyst converter main body 100
Motor exhaust to be clean；In addition, air outlet structure 300 and engine exhaust by making 100 other end of catalyst converter main body
The system other end is connect with exhaust system under chassis (cold end), for purified gas to be exported catalytic converter assembly, and
It is transported to exhaust system under chassis.
Specifically, above-mentioned catalyst converter main body 100 may include catalyst converter shell 110, be sequentially communicated set on catalyst converter shell 110
In triple mode catalytic converter 120 and gasoline engine grain catcher 130, and taken with what gasoline engine grain catcher 130 was connected to
Depressed structure 400.And above-mentioned 200 one end of air intake structure is connected to engine exhaust system one end, its (i.e. air intake structure) other end
It is connected to triple mode catalytic converter 120, above-mentioned 300 one end of air outlet structure is connected to gasoline engine grain catcher 130, it (goes out
Depressed structure) other end and the engine exhaust system other end (or the air outlet structure other end with exhaust system under chassis) be connected to,
Depressed structure 400 is taken to be connected to the exhaust manifold of engine.That is the air intake structure 200 and outlet that are arranged by both ends of catalytic converter assembly
Structure 300, which is communicated on engine exhaust system (i.e. hot end), (or is connected to hot end for air intake structure, and air outlet structure connects
It connects in cold end).Moreover, the triple mode catalytic converter 120 and gasoline engine grain catcher that are sequentially arranged in catalyst converter shell 110
130, it can be respectively to CO, HC and NO in the motor exhaust inputted by air intake structure 200XIt is removed, and to tail gas
In the molecule (size is less than 4-20 μm) as carbon or carbide composed by Particulate Emission substance (cigarette ash) be collected.
Moreover, taking depressed structure 400 can be from the exhaust discrimination of engine after having collected certain particulate matter in gasoline engine grain catcher 130
The particulate matter that high-temperature gas captures gasoline engine grain catcher 130 is introduced in pipe carries out burning elimination.In this way, by by ternary
Catalyst 120 and gasoline engine grain catcher 130 are integrally disposed in hot end, so that gasoline engine grain catcher 130 and taking
Exhaust manifold of the depressed structure 400 apart from engine is just more convenient for taking depressed structure 400 from the exhaust manifold of engine apart from close
High temperature (temperature more than 600 DEG C) gas is obtained, and high-temperature gas is caught by taking depressed structure 400 to be transported to gasoline engine particle
Temperature loss is less during storage 130 (can keep 600 DEG C of temperatures above), it will be able to guarantee normally and fully to gasoline
The particulate matter that machine grain catcher 130 captures carries out burning elimination.
Further, above-mentioned catalyst converter shell 110 may include tubular main casing, heat-insulated outside the tubular main casing
Plate, and the heat insulation foam between the tubular main casing and thermal insulation board, and above-mentioned triple mode catalytic converter 120 and gasoline engine
Grain trap 130 is sequentially arranged in tubular main casing.Moreover, tubular main casing may also include converter shell interconnected and
Trap shell, wherein converter shell is for accommodating triple mode catalytic converter 120, and trap shell is for accommodating gasoline engine
Grain catcher 130, be more convenient for different shape and size of triple mode catalytic converters 120 and gasoline engine grain catcher 130 into
Row accommodates and positioning.In addition, the main casing of tubular can carry out triple mode catalytic converter 120 and gasoline engine grain catcher 130
It accommodates, convenient for integrating the two.And it is corresponding with tubular main casing shape heat-insulated by being arranged outside tubular main casing
Plate can be thermally shielded catalytic converter assembly, and the high fever generated in its internal combustion process is avoided to impact external structure.This
Outside, by the way that heat insulation foam is arranged between, heat-blocking action can be not only further functioned as, may also function as cushioning effect.In addition, can
Thermal insulation board is set as split type structure, i.e., the heat-insulated scoreboard of muti-piece (including two pieces or more) is disposed around outside tubular main casing,
And the edge of two pieces of adjacent heat-insulated scoreboards can be welded to connect, or the edge of every piece of heat-insulated scoreboard is welded on tubular
Main casing surface is fixed without using connection structures such as screws.In this way, material cost and assembly cost can be reduced,
It may make the heat insulation foam thickness of filling big simultaneously and consolidation, can be very good barrier exhaust noise, promote the NVH of engine.
In addition, in another embodiment, above-mentioned catalyst converter shell 110 can also only include enclosing set on triple mode catalytic converter
120 and gasoline engine grain catcher 130 outside thermal insulation board, and be set to thermal insulation board and triple mode catalytic converter 120 (and gasoline engine
Grain catcher 130) between heat insulation foam.Similarly, thermal insulation board can also be set as split type structure, can also be set as monoblock type tubular knot
Structure.Moreover, the shape of thermal insulation board is corresponding with the shape of triple mode catalytic converter 120 and gasoline engine grain catcher 130.
In addition, above-mentioned catalytic converter assembly may also include the fixed frame 500 on catalyst converter shell 110, pass through fixed frame
500 can be fixed on entire catalytic converter assembly in other structures.Specifically, which includes the fixed plate for being set as arc,
And the connecting plate set on the fixation board ends.The fixed plate can be bonded with the surface of thermal insulation board, can also be welded and be connected with thermal insulation board
It is connected together, makes the firm and reliable connection of fixed frame and catalytic converter assembly.In addition, connecting hole can be arranged on connecting plate, can lead to
It crosses connection bolt connecting plate is fixed in other structures, to realize being fixedly connected for fixed frame and other structures.Moreover, above-mentioned
Catalytic converter assembly may include a fixed frame on catalyst converter shell, also may include being set on catalyst converter shell 110
Multiple fixed frames.
In addition, above-mentioned air intake structure 200 may include the inlet flange 210 connecting with engine exhaust system one end, with into
The intake elbow 220 that gas flange 210 connects, and connect with intake elbow 220 230, air inlet Taper Pipe 230 and catalyst converter shell
The connection of 110 one end.By the way that inlet flange 210 is arranged, convenient for carrying out docking fixation with engine exhaust system.And by be arranged into
Gas bend pipe 220 and air inlet Taper Pipe 230 are urged convenient for motor exhaust to be swimmingly introduced into the ternary being set in catalyst converter shell 110
Change in converter 120.Moreover, the air inlet Taper Pipe 230 can be at the top of the tubular main casing of the catalyst converter shell 110 or top of thermal insulation board
Portion is correspondingly connected with, to form an entirety with catalyst converter shell 110.Moreover, the structure of air inlet Taper Pipe 230 can be with catalyst converter shell
110 structure is corresponding, i.e., air inlet Taper Pipe 230 may also comprise the main cone tube body being correspondingly connected with tubular main casing, be set to main cone pipe
The centrum thermal insulation board that is correspondingly connected in vitro with the thermal insulation board of catalyst converter shell 110 and it is set to main cone tube body and centrum thermal insulation board
Between heat insulation foam.
Moreover, above-mentioned air outlet structure 300 may include connecting with the engine exhaust system other end (or exhaust system under chassis)
The outlet flange 330 connect, the outlet bend pipe 320 being connect with outlet flange 330, and the gas coning out being connect with outlet bend pipe 320
Pipe 310, air outlet taper pipe 310 are connect with 110 other end of catalyst converter shell.By the way that outlet flange 330 is arranged, convenient for being arranged with engine
Gas system (or exhaust system under chassis) carries out docking fixation.And by setting outlet bend pipe 320 and air outlet taper pipe 310, it is convenient for
It will treated that motor exhaust swimmingly introduces starts by triple mode catalytic converter 120 and gasoline engine grain catcher 130
In machine exhaust system (or exhaust system under chassis).Moreover, the air outlet taper pipe 310 can be with the tubular main casing of catalyst converter shell 110
Body bottom or the bottom of thermal insulation board are correspondingly connected with, to form an entirety with catalyst converter shell.Similarly, the knot of air outlet taper pipe 310
Structure can also be corresponding with the structure of catalyst converter shell 110, i.e., air outlet taper pipe 310 may also comprise the master being correspondingly connected with tubular main casing
Cone tube, the centrum thermal insulation board being correspondingly connected with outside main cone tube body with the thermal insulation board of catalyst converter shell 110 and be set to main cone
Heat insulation foam between tube body and centrum thermal insulation board.
Moreover, the angle of the central axis and the central axis of triple mode catalytic converter 120 of above-mentioned inlet flange 210 is set as
α, and 45 °≤α≤180 °.Moreover, the central axis of above-mentioned triple mode catalytic converter 120 and gasoline engine grain catcher 130
Central axis is overlapped, and the central axis of outlet flange 330 and the central axis angle of gasoline engine grain catcher 130 are set as β, and
90°≤β≤180°.It can be so that intake elbow 220 and outlet bend pipe 320 be bent suitable angle, so that motor exhaust
It being capable of swimmingly inlet and outlet triple mode catalytic converter 120 and gasoline engine grain catcher 130, it is ensured that good air inlet
Uniformity, and reduce exhaust resistance.Moreover, also may make between triple mode catalytic converter 120 and gasoline engine grain catcher 130
Axial spacing be set as X, and 30mm≤X≤60mm.In this way, enough setting installation spaces can be left, to be arranged for installing
Take depressed structure takes gas mounting base and the sensor installation seat for installing lambda sensor.
In addition, above-mentioned, to take depressed structure 400 may include that first be connected to the exhaust manifold of engine takes tracheae 410 and second
Tracheae 420 is taken, this first takes tracheae 410 to be connected to gasoline engine grain catcher 130 and 120 link position of triple mode catalytic converter
Place is connected at gasoline engine grain catcher 130, and second takes tracheae 420 to be connected to gasoline engine grain catcher 130 and outlet
At 300 link position of structure or it is connected at air outlet structure 300.It can distinguish at 130 head and the tail both ends of gasoline engine grain catcher
Connection setting one takes tracheae, high-temperature gas can be inputted from the both ends of gasoline engine grain catcher 130, to gasoline engine granule capturing
The particulate matter captured in device 130 is adequately burnt, so that the elimination to particulate matter is more thorough, i.e., to the elimination of particulate matter
Effect can be more preferable.In addition, above-mentioned, to take depressed structure 400 can also only include that first take tracheae 410, this first takes tracheae 410 not only
It can be communicated in the top of gasoline engine grain catcher 130, the middle part of gasoline engine grain catcher 130 can also be communicated in.
Specifically, first take 410 one end of tracheae that can be connected to exhaust manifold, first takes the other end of tracheae 410 can be with vapour
Oil machine grain catcher 130 connect the connection of catalyst converter shell 110 of middle position with triple mode catalytic converter 120, can also wear
It crosses catalyst converter shell 110 to be directly connected to the top of gasoline engine grain catcher 130 (i.e. head), convenient for by the height in exhaust manifold
Wet body introduces 130 top of gasoline engine grain catcher, can fire to the particulate matter captured in gasoline engine grain catcher 130
It burns and eliminates.Moreover, second takes 420 one end of tracheae that can be connected to exhaust manifold, second takes the other end of tracheae 420 to may pass through catalysis
Device shell 110 is directly connected to 130 bottom of gasoline engine grain catcher (i.e. tail portion), can also go out gas coning with air outlet structure 300
Pipe 310 or outlet bend pipe 320 are connected to, convenient for the high-temperature gas in exhaust manifold is introduced 130 tail portion of gasoline engine grain catcher,
Burning removing can be carried out again to the particulate matter of unburned burning-up.
In addition, above-mentioned take depressed structure 400 to may also include on catalyst converter shell 110 first takes gas mounting base, it is above-mentioned
First takes tracheae 410 to install takes at gas mounting base in first.Gas mounting base is taken by the way that first is arranged on catalyst converter shell 110,
It first is taken at gas mounting base convenient for taking one end of tracheae 410 to be mounted on this for first, and makes first tracheae 410 is taken to pass through and urge
Change device inner walls and be connected at the top of gasoline engine grain catcher 130, convenient for reliablely and stablely to gasoline engine grain catcher
Conveying high-temperature gas in 130.Moreover, above-mentioned take depressed structure 400 to may also include on air outlet structure 300 second takes gas to install
Seat, above-mentioned second takes tracheae 420 to install takes at gas mounting base in second.Similarly, it is taken by the way that second is arranged on air outlet structure 300
Gas mounting base convenient for taking one end of tracheae 420 to be mounted on this to take at gas mounting base for second, and makes the to take tracheae
It is connected to across air outlet structure inner wall with 130 tail portion of gasoline engine grain catcher, convenient for reliablely and stablely being caught to gasoline engine particle
130 tail portion conveying high-temperature gas of storage.
In addition, above-mentioned catalytic converter assembly may also include on air intake structure 200 (intake elbow or air inlet Taper Pipe)
One sensor installation seat, and the second sensor mounting base being set on air outlet structure 300 (outlet bend pipe or complete Taper Pipe).It is logical
Crossing the first sensor mounting base can be installed in preceding lambda sensor on air intake structure, and can by the second sensor mounting base
Post oxygen sensor is installed on air outlet structure.It can measure the oxygen in catalytic converter assembly by preceding lambda sensor and post oxygen sensor
Potential calculates corresponding oxygen concentration by chemical equilibrium theory, reaches monitoring and control air-fuel ratio, to guarantee product quality
And exhaust emissions is up to standard.
In addition, the present invention also proposes a kind of exhaust system, including engine catalytic converter assembly as described above.The present invention mentions
In technical solution out, by the way that the air intake structure of catalytic converter assembly and air outlet structure are installed in engine exhaust system, with
The triple mode catalytic converter (TWC) being integrated in catalyst converter shell and gasoline engine grain catcher (GPF) are arranged in engine
At hot end (i.e. engine exhaust system), convenient for taking depressed structure to obtain high temperature (600 DEG C or more) from enmgine exhaust
Gas carries out burning removing to the particulate matter that gasoline engine grain catcher captures, it is not necessary that electric heater unit is additionally arranged to burn
Grain object, simplifies structure, also facilitates and controls catalytic converter assembly.Further, since catalytic converter assembly is arranged in engine thermal
End can be significantly reduced the distance of high-temperature gas conveying, so that high temperature so that taking gas structural distance enmgine exhaust closer
Temperature reduction is less during transportation for gas, so as to easily obtain high-temperature gas from enmgine exhaust to vapour
The particulate matter of oil machine grain catcher capture carries out burning removing.
In this way, designing using reasonable structure, GPF is arranged in numbers of hot-side engine, so that engine catalytic converter assembly shape
Assembly structure is encapsulated at the close coupling catalyst converter of TWC and GPF, the particulate matter initiative regeneration of GPF is solved the problems, such as, reduces vehicle
Material cost and calibration cost.Moreover, the integrated design of catalyst converter thermal insulation board and catalyst converter shell promotes engine NVH
Property, while also reducing assembly cost and material cost.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of engine catalytic converter assembly, it is set in engine exhaust system, which is characterized in that including catalyst converter main body, with
And it is respectively arranged on the air intake structure and air outlet structure at catalyst converter main body both ends；
The catalyst converter main body includes catalyst converter shell, the triple mode catalytic converter being sequentially communicated in the catalyst converter shell
And gasoline engine grain catcher, and depressed structure is taken with what the gasoline engine grain catcher was connected to；
Described air intake structure one end is connected to engine exhaust system one end, the other end is connected to the triple mode catalytic converter,
Described air outlet structure one end is connected to the gasoline engine grain catcher, the other end and the engine exhaust system other end connect
It is logical, it is described that depressed structure is taken to be connected to the exhaust manifold of engine.
2. engine catalytic converter assembly according to claim 1, which is characterized in that the air intake structure includes and engine
The inlet flange of exhaust system one end connection, the intake elbow being connect with the inlet flange, and connect with the intake elbow
The air inlet Taper Pipe connect, the air inlet Taper Pipe are connect with catalyst converter shell one end.
3. engine catalytic converter assembly according to claim 2, which is characterized in that the air outlet structure includes and engine
The exhaust system other end connection outlet flange, the outlet bend pipe with the outlet flanged joint, and with the outlet bend pipe
The air outlet taper pipe of connection, the air outlet taper pipe are connect with the catalyst converter shell other end.
4. engine catalytic converter assembly according to claim 3, which is characterized in that the central axis of the inlet flange with
The angle of the central axis of the triple mode catalytic converter is set as α, and 45 °≤α≤180 °；
The central axis of the triple mode catalytic converter is overlapped with the central axis of the gasoline engine grain catcher, the outlet
The central axis angle of the central axis of flange and the gasoline engine grain catcher is set as β, and 90 °≤β≤180 °.
5. engine catalytic converter assembly according to claim 3, which is characterized in that the triple mode catalytic converter with it is described
Axial spacing between gasoline engine grain catcher is set as X, and 30mm≤X≤60mm.
6. engine catalytic converter assembly as claimed in any of claims 1 to 5, which is characterized in that it is described take it is depressed
Structure includes that first be connected to the exhaust manifold of engine takes tracheae and second to take tracheae, and described first to take tracheae to be connected to described
At gasoline engine grain catcher and the triple mode catalytic converter link position or it is connected to the gasoline engine grain catcher
Place, described second takes tracheae to be connected to the gasoline engine grain catcher and at the air outlet structure link position or be connected to
At the air outlet structure.
7. engine catalytic converter assembly according to claim 6, which is characterized in that it is described take depressed structure further include be set to institute
It states first on catalyst converter shell and takes gas mounting base, described first takes tracheae to install takes at gas mounting base in described first；
It is described that take depressed structure further include that second on the air outlet structure takes gas mounting base, described second take tracheae install in
Described second takes at gas mounting base.
8. engine catalytic converter assembly as claimed in any of claims 1 to 5, which is characterized in that further include being set to
First sensor mounting base on the air intake structure, and the second sensor mounting base on the air outlet structure.
9. engine catalytic converter assembly as claimed in any of claims 1 to 5, which is characterized in that the catalyst converter
Shell includes tubular main casing, the thermal insulation board outside the tubular main casing, and be set to the tubular main casing with it is described
Heat insulation foam between thermal insulation board, the triple mode catalytic converter and the gasoline engine grain catcher are set to the tubular main casing
In.
10. a kind of exhaust system, which is characterized in that including engine catalyst converter as in one of claimed in any of claims 1 to 9
Assembly.
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| CN201910474476.1A CN110145389B (en) | 2019-05-31 | 2019-05-31 | Engine catalyst assembly and exhaust system |
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|---|---|---|---|
| CN201910474476.1A CN110145389B (en) | 2019-05-31 | 2019-05-31 | Engine catalyst assembly and exhaust system |
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| CN110145389A true CN110145389A (en) | 2019-08-20 |
| CN110145389B CN110145389B (en) | 2020-06-05 |
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| CN110700927A (en) * | 2019-10-18 | 2020-01-17 | 浙江达峰汽车技术有限公司 | Four-effect gasoline engine tail gas catalytic purification system meeting national six-emission standard |
| CN110735700A (en) * | 2019-10-11 | 2020-01-31 | 东风汽车集团有限公司 | automobile engine exhaust system |
| CN110778382A (en) * | 2019-10-18 | 2020-02-11 | 浙江达峰汽车技术有限公司 | Gasoline engine tail gas catalytic purification system meeting national emission standards of six countries |
| CN110966066A (en) * | 2019-12-04 | 2020-04-07 | 郑州日产汽车有限公司 | Pick-up truck coupling type catalytic converter |
| CN111322137A (en) * | 2020-04-16 | 2020-06-23 | 柳州利和排气控制系统有限公司 | Three way catalyst converter packaging hardware |
| CN111322136A (en) * | 2020-04-16 | 2020-06-23 | 柳州利和排气控制系统有限公司 | Three way catalyst converter packaging hardware |
| CN111396176A (en) * | 2020-04-16 | 2020-07-10 | 昆明云内动力股份有限公司 | Catalyst for engine combustion development stage and processing method |
| CN114215634A (en) * | 2021-11-15 | 2022-03-22 | 岚图汽车科技有限公司 | TWC and GPF tightly-coupled hot end catalyst for transverse front-row supercharged engine |
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| CN114215634A (en) * | 2021-11-15 | 2022-03-22 | 岚图汽车科技有限公司 | TWC and GPF tightly-coupled hot end catalyst for transverse front-row supercharged engine |
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