CN205025535U

CN205025535U - Mix subassembly, inlet tube subassembly and exhaust aftertreatment part thereof

Info

Publication number: CN205025535U
Application number: CN201390001166.4U
Authority: CN
Inventors: 毛伟; 樊坚强; 沈峰; 赵治国; 周林
Original assignee: Tenneco Suzhou Emission System Co Ltd
Current assignee: Tenneco Suzhou Emission System Co Ltd
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2016-02-10
Anticipated expiration: 2023-04-25
Also published as: WO2014172866A1

Abstract

The utility model discloses a mix the subassembly. This mixture subassembly can be arranged in the aftertreatment part that exhausts, including outer perforated pipe, interior perforated pipe, connect the lantern ring of outer perforated pipe and interior perforated pipe and be fixed in the end cover on the outer perforated pipe, wherein interior perforated pipe is arranged in outer perforated pipe, the lantern ring and end cover are located the both ends of perforated pipe respectively, the lantern ring is including the first surface that is fixed in outer perforated pipe, the second surface of perforated pipe in being fixed in, and be located the radial constriction part branch between first surface and the second surface, radial constriction part gives the lantern ring provides the funnel shape, interior perforated pipe is equipped with a plurality of first perforation, outer perforated pipe is equipped with a plurality of seconds and perforates. The utility model discloses still relate to the inlet tube subassembly and the exhaust aftertreatment part that have this mixture subassembly.

Description

Electric hybrid module, inlet duct assembly and exhaust aftertreatment components thereof

Technical field

The application relates to a kind of electric hybrid module, has the inlet duct assembly of this electric hybrid module and exhaust aftertreatment components thereof.

Background technique

This part provides the background information relevant to the application, and it is necessarily prior art not.

Exhaust after treatment system can exhaust stream through before various exhaust after-treatment component by reagent pump-down process fluid quantitative to delivering in exhaust stream.Such as, can exhaust through selective catalytic reduction (SCR) catalyzer before by urea pump-down process fluid quantitative to delivering in exhaust stream.But when exhaust fully mixes with urea pump-down process fluid, SCR catalyst is only the most effective.

Model utility content

This part provides the overview of the application instead of its four corner or its characteristic comprehensive disclosure.

The purpose of this utility model is to provide the good electric hybrid module of a kind of mixed effect, have the inlet duct assembly of this electric hybrid module and exhaust aftertreatment components thereof.

For achieving the above object, the utility model adopts following technological scheme: a kind of electric hybrid module, can be used in exhaust aftertreatment components, described electric hybrid module comprises outer perforated pipe, interior perforated pipe, the collar connecting described outer perforated pipe and described interior perforated pipe and the end cap be fixed on described outer perforated pipe, wherein said interior perforated pipe is arranged in described outer perforated pipe, the described collar and described end cap lay respectively at the two ends of described interior perforated pipe, the described collar comprises the first surface being fixed on described outer perforated pipe, be fixed on the second surface of described interior perforated pipe, and the radial constriction between described first surface and described second surface, described radial constriction provides funnel shaped to the described collar, described interior perforated pipe is provided with multiple first perforation, described outer perforated pipe is provided with multiple second perforation.

Further, described outer perforated pipe and described interior perforated pipe are cylindrical shape, described first perforation and described second is bored a hole and is distributed in described interior perforated pipe and described outer perforated pipe respectively circumferentially, the diameter of described interior perforated pipe is less than the diameter of described outer perforated pipe, and described outer perforated pipe and described interior perforated pipe are coaxially arranged.

Further, described first surface and the described second surface of the described collar are cylndrical surface, and described first surface is fixed on the internal surface of described outer perforated pipe, and described second surface to insert in described interior perforated pipe and is fixed on the internal surface of described interior perforated pipe.

Further, described radial constriction shrinks gradually along the axis of described outer perforated pipe and/or described interior perforated pipe, and described funnel shaped is conical.

Further, described outer perforated pipe comprises the first end and second end relative with described first end, and the described collar is near described first end, and described end cap is fixed on described second end.

Further, described end cap has the curved surface protruded to the direction away from the described collar, to force exhaust reverse flow.

Further, described interior perforated pipe comprises the free terminal of contiguous described end cap, and described free terminal extends axially beyond described second end, and described free terminal leans the inwall of described end cap or the spaced apart from inner walls with described end cap.

Further, described free terminal leans the inwall of described end cap, and described free terminal offers recess on its edge to form zig-zag configuration.

Further, described electric hybrid module cross setting, described first perforation is circumferentially distributed on described interior perforated pipe, described second perforation is circumferentially distributed on described outer perforated pipe, and described first perforation and described second to bore a hole at described outer perforated pipe and/or described interior perforated pipe axially not overlapped.

Further, described electric hybrid module is vertically arranged, the half that described first perforation is formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that described second perforation is formed on the circumference of this outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

Further, described end cap comprises the axial extending flanges be connected on described second end, and described second end is provided with the jagged edge formed by multiple recess, and the length of described recess is greater than the length of described axial extending flanges to form multiple exit orifice.

The utility model also relates to a kind of electric hybrid module, can be used in exhaust aftertreatment components, described electric hybrid module comprises outer perforated pipe, interior perforated pipe, the collar connecting described outer perforated pipe and described interior perforated pipe and the end cap be fixed on described outer perforated pipe, wherein said interior perforated pipe is arranged in described outer perforated pipe, the described collar comprises the first surface being fixed on described outer perforated pipe, be fixed on the second surface of described interior perforated pipe, and the radial constriction between described first surface and described second surface, described interior perforated pipe is provided with multiple first perforation, described outer perforated pipe is provided with multiple second perforation, described end cap has the curved surface that protrudes to the direction away from the described collar to force exhaust reverse flow, described electric hybrid module enters described interior perforated pipe for making the exhaust from motor under the guiding of the described collar, then be vented through described first region of the perforation flow direction described outer perforated pipe and described interior perforated pipe, finally leave from described second perforation.

Further, described radial constriction shrinks along the axis of described outer perforated pipe and/or described interior perforated pipe, gradually to form conical funnel shaped.

Further, described interior perforated pipe comprises the free terminal of contiguous described end cap, described free terminal extends beyond described second end, and described free terminal leans the inwall of described end cap, and described free terminal offers recess on its edge to form zig-zag configuration.

Further, described electric hybrid module is vertically arranged, the half that described first perforation is only formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that described second perforation is only formed on the circumference of this outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

The utility model also relates to a kind of inlet duct assembly, it comprises inlet duct and electric hybrid module, the second portion that described inlet duct comprises first portion and is connected with described first portion, described electric hybrid module is connected with described second portion, described second portion radial direction expands with the mounting surface formed for installing quantitatively feeding module, described mounting surface is provided with the aperture of receiving erecting device, and described erecting device is in order to support described quantitative feeding module.Wherein, described electric hybrid module is electric hybrid module as above.

Further, described mounting surface tilts, and described second portion to insert at least partly in described outer perforated pipe and fixes with described outer perforated pipe, and described inlet duct also comprises contiguous described aperture and for receiving the inlet sensor projection seat of sensor.

The utility model also relates to a kind of exhaust aftertreatment components, and for the treatment of the exhaust stream that motor produces, described exhaust aftertreatment components comprises, and has the housing of inlet duct and outer pipe; Base material between described inlet duct and described outer pipe, the coating of catalyzed dose of described base material, described base material is positioned at described housing; Aperture, described aperture is communicated with described exhaust stream, in order to by pump-down process fluid quantitative to delivering in described exhaust stream; And electric hybrid module, described electric hybrid module is positioned at described housing and is positioned at the downstream in described aperture and the upstream of described base material, and described electric hybrid module and described inlet duct link together.Wherein, described electric hybrid module is electric hybrid module as above.

Further, described inlet duct, described electric hybrid module and the equal cross setting of described outer pipe and be parallel to each other; Or described inlet duct and described electric hybrid module are vertically arranged, described outer pipe cross setting and perpendicular to described inlet duct and described electric hybrid module.

Further, described housing comprises the first baffle plate, second baffle and the third gear plate between described first baffle plate and described second baffle, described first baffle plate and described second baffle are the solid opposite end to seal described housing, described outer perforated pipe through described first baffle plate and described third gear plate with by described first baffle plate and described third gear plate support, described outer perforated pipe and described interior perforated pipe extend beyond described third gear plate at least partly, described third gear plate is provided with the described biperforate through hole of some connections, and described through hole is positioned at the radial outside of described outer perforated pipe diametrically.

Further, along axially seeing of described electric hybrid module, the described collar is positioned at the side away from third gear plate of described first baffle plate, and described first perforation is between described first baffle plate and described third gear plate, and described through hole is positioned at the side away from the first baffle plate of described third gear plate.

Further, described housing comprises the perforated retainer supporting described outer pipe, and described outer pipe is provided with the perforation between described perforated retainer and described second baffle.

Further, described base material replaces with filter.

The utility model also relates to a kind of exhaust aftertreatment components, and for the treatment of the exhaust stream that motor produces, described exhaust aftertreatment components comprises: the housing with inlet duct and outer pipe, base material between described inlet duct and described outer pipe, the coating of catalyzed dose of described base material, described base material is positioned at described housing, aperture, described aperture is communicated with described exhaust stream, in order to by pump-down process fluid quantitative to delivering in described exhaust stream, and electric hybrid module, described electric hybrid module is positioned at described housing and is positioned at the downstream in described aperture and the upstream of described base material, described electric hybrid module and described inlet duct link together, described electric hybrid module comprises the outer perforated pipe with an end, interior perforated pipe, with the end cap be connected on the described end of described outer perforated pipe and described interior perforated pipe, described interior perforated pipe is positioned at described outer perforated pipe and coaxially arranges with described outer perforated pipe, described interior perforated pipe comprises multiple first perforation forcing the flowing in the other direction of described exhaust stream, and described outer perforated pipe comprises multiple second perforation, be vented and flow through these the second perforation after flowing through these first perforation.

Further, these first perforation not with these second bore a hole axially overlapping.

Further, the half that these first perforation are formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that these second perforation are formed on the circumference of described outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

Further, the axis being parallel arrangement of described inlet duct and described electric hybrid module and described housing.

Further, described inlet duct and described electric hybrid module are arranged to the axis perpendicular to described housing.

The utility model also relates to a kind of exhaust aftertreatment components of the exhaust stream for the treatment of motor generation, and described exhaust aftertreatment components comprises: for carrying the housing of described exhaust stream, through the aperture that described housing extends, described aperture is used for pump-down process fluid quantitative to delivering in described exhaust stream, exhaust aftertreatment component, described exhaust aftertreatment component is positioned in downstream in described housing and is positioned at the downstream in described aperture, and described exhaust aftertreatment component comprises at least one pump-down process base material or filter between the inlet duct and outer pipe of described housing, and be connected to the electric hybrid module of described inlet duct, described electric hybrid module comprises outer perforated pipe and interior perforated pipe, described interior perforated pipe is included in multiple first perforation of its circumference, described outer perforated pipe is included in multiple second perforation of its circumference, described interior perforated pipe to be disposed in described outer perforated pipe and coaxially to arrange with described outer perforated pipe, and described interior perforated pipe is connected on described outer perforated pipe via the funnel shape collar, wherein, these first perforation not with these second bore a hole axially overlapping, and described electric hybrid module is configured to make described exhaust stream through described interior perforated pipe, described exhaust stream is guided to enter in described outer perforated pipe through these first perforation, make described exhaust stream flow inversion and towards these second perforation, and guide described exhaust stream to enter the inside of described housing through these second perforation.

Further, described inlet duct and described electric hybrid module are arranged to the axis being parallel with described housing.

Further, described outer pipe comprises the first end of the inside being disposed in described housing, and described first end is supported by perforated retainer, and described first end comprises multiple perforation.

The utility model also relates to a kind of exhaust aftertreatment components of the exhaust stream for the treatment of motor generation, and described exhaust aftertreatment components comprises: for carrying the housing of described exhaust stream, through the aperture that described housing extends, described aperture is used for pump-down process fluid quantitative to delivering in described exhaust stream, exhaust aftertreatment component, described exhaust aftertreatment component to be positioned in described housing and to be positioned at the downstream in described aperture, and described exhaust aftertreatment component comprises at least one pump-down process base material or filter between the inlet duct and outer pipe of described housing, and be connected to the electric hybrid module of described inlet duct, described electric hybrid module comprises outer perforated pipe and interior perforated pipe, described interior perforated pipe is included in multiple first perforation of the half circumference of its circumference, described outer perforated pipe is included in multiple second perforation of the half circumference of its circumference, described interior perforated pipe to be disposed in described outer perforated pipe and coaxially to arrange with described outer perforated pipe, and described interior perforated pipe is connected on described outer perforated pipe via the funnel shape collar, wherein, these first perforation towards first direction and these second perforation towards second direction opposite to the first direction, and described electric hybrid module is configured to receive described exhaust stream through described interior perforated pipe, described exhaust stream is guided to enter in described outer perforated pipe through these first perforation, make described exhaust stream flow inversion and towards these second perforation, and guide described exhaust stream to enter the inside of described housing through these second perforation.

Compared to prior art, the utility model, by arranging the outer perforated pipe and interior perforated pipe that connect together, increases mixing distance, improves mixed effect.

Other Applicable scope will be known from according to description provided in this article.Description in this general introduction and specific example be only intended to for illustration of object and and the scope of not intended to be limiting the application.

Accompanying drawing explanation

Accompanying drawing described herein only for the purpose of illustration of selected embodiment instead of all possible implementation, and is not intended to the scope limiting the application.

Fig. 1 schematically illustrates the principle according to the application's vent systems;

Fig. 2 is the inlet duct side perspective view of the exhaust aftertreatment components of First Principle according to the application;

Fig. 3 is the outer pipe side perspective view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 4 is the right side perspective view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 5 is the left side perspective view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 6 is the inlet duct side perspective exploded view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 7 is the outer pipe side perspective exploded view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 8 is the inlet duct side front perspective view of exhaust aftertreatment components demonstrated in Figure 2;

Fig. 9 is the cross sectional view along the exhaust aftertreatment components of 9-9 line intercepting in Fig. 8;

Figure 10 is the outer pipe lateral section perspective view of exhaust aftertreatment components demonstrated in Figure 2;

Figure 11 is the inlet duct side perspective view of the exhaust aftertreatment components of the second principle according to the application;

Figure 12 is the outer pipe side perspective view of the exhaust aftertreatment components shown in Figure 11;

Figure 13 is the right side perspective view of the exhaust aftertreatment components shown in Figure 11;

Figure 14 is the left side perspective view of the exhaust aftertreatment components shown in Figure 11;

Figure 15 is the inlet duct side perspective exploded view of the exhaust aftertreatment components shown in Figure 11;

Figure 16 is the outer pipe side perspective exploded view of the exhaust aftertreatment components shown in Figure 11;

Figure 17 is the cross sectional view of the exhaust aftertreatment components shown in Figure 11; And

Figure 18 is the outer pipe lateral section perspective view of the exhaust aftertreatment components shown in Figure 11.

In each view of accompanying drawing, corresponding reference character represents corresponding part.

Embodiment

More fully exemplary embodiment is described referring now to accompanying drawing.

Fig. 1 schematically illustrates the vent systems 10 according to the application.Vent systems 10 at least can comprise the motor 12 be communicated with fuel source (not shown), and fuel just produces exhaust once consume, and enters the exhaust passage 14 with exhaust after treatment system 16.Can at the arranged downstream exhaust aftertreatment components 18 of motor 12, this exhaust aftertreatment components 18 can comprise exhaust aftertreatment component, the base material of such as catalyst-coated or filter 20.The base material of catalyst-coated or filter 20 can be diesel oxidation catalyst (DOC), Diesel particulate filtration (DPF) element or as figure selective catalytic reduction (SCR) element shown.Although only illustrate base material or the filter 20 of single catalyst-coated in FIG, be understood that exhaust aftertreatment component can hold base material or the filter 20 and 21 (such as Fig. 9 and Figure 17) of a pair catalyst-coated.Thus, any combination of above-mentioned base material or filter can be used.In addition, other base materials and filter comprise NH_3 leakage catalyzer (ammoniaslipcatalyst), lean NOx catalyst and analog.

Although the application failed call, exhaust after treatment system 16 may further include the parts of such as heat-increasing device or burner 22 to increase the temperature of the exhausting air through exhaust passage 14.The temperature improving exhausting air is conducive to realizing lighting the catalyzer in exhaust aftertreatment component under cold weather conditions and when the startup of motor 12, and activates the regeneration of exhaust aftertreatment component when exhaust aftertreatment component is DPF.

For assisting to be reduced to the discharge that motor 12 produces, exhaust after treatment system 16 can comprise quantitatively feeding module 24 for periodically by pump-down process fluid quantitative to delivering in exhaust stream.As show in Figure 1, quantitatively feeding module 24 can be positioned at exhaust aftertreatment components 18 upstream, and can run and be injected in exhaust stream by pump-down process fluid.Thus, quantitatively feeding module 24 realizes fluid with reagent storage tank 26 with pump 28 by means of entrance pipe 30 to be communicated with, so that by the pump-down process fluid quantitative of such as diesel fuel or urea to delivering in the upstream, exhaust passage 14 of exhaust aftertreatment components 18.Quantitative feeding module 24 can also be communicated with reagent storage tank 26 via return pipeline 32.Return pipeline 32 allows anyly not returned reagent storage tank 26 by quantitative to the pump-down process fluid being fed into exhaust stream.Pump-down process fluid has also assisted cooling quantitatively to feed module 24 thus make quantitatively to feed module 24 by entrance pipe 30, the quantitatively flowing of feeding module 24 and return pipeline 32 can not be overheated.Although do not show in accompanying drawing, quantitatively feeding module 24 can be configured as to be included in and quantitatively feed module 24 surrounding transmission freezing mixture with the coolant jacket cooled it.

The required pump-down process Fluid Volume effectively processing this exhaust stream can change with load, engine speed, temperature of exhaust gas, exhausting air flow velocity, motor fuel injection timing, desired NOx reduction, gas manometer pressure, relative moisture, EGR ratio and engineer coolant temperature.Can at the downstream location NOx sensor of exhaust aftertreatment component or gauge 34.NOx sensor 34 can be run and the signal indicating this exhaust NOx content is exported to control unit of engine 36.From control unit of engine 36, all or some engine operating parameters can be supplied to reagent electronic quantitative feeding controller 38 through the data/address bus of engine/vehicle.Reagent electronic quantitative feeding controller 38 also can be included as a part for control unit of engine 36.As Fig. 1 instruction, can by each sensor measurement temperature of exhaust gas, exhausting air flow and exhaust back pressure and other vehicle operating parameters.

The amount of the pump-down process fluid required by effective process exhaust stream also may depend on the size of motor 12.Thus, the large-sized diesel motor be used in engine, ocean application and stationary applications may have the exhaust flow rate exceeding single quantitative feeding module 24 ability.Thus, although show only the quantitative feeding that single quantitative feeding module 24 comes for pump-down process fluid, be understood that the application has imagined that multiple quantitative being fed module 24 is used for reagent and injects.

The exhaust produced in order to ensure motor 12 and the suitable mixing of pump-down process fluid, the application provides a kind of exhaust aftertreatment components 18, and this exhaust aftertreatment components 18 has the electric hybrid module 40 be arranged in wherein.First exemplary embodiment of exhaust aftertreatment components 18 is included in Fig. 2 to electric hybrid module 40 demonstrated in Figure 10.Illustrate as best in Fig. 2 to Fig. 5, Fig. 9 and Figure 10, exhaust aftertreatment components 18 comprises Cylindrical inlet pipe 42 in the opposite end being disposed in cylindrical housings 46 and cylindrical outlet pipe 44.

The first portion 48 of inlet duct 42 can comprise attachment flange 50, for exhaust aftertreatment components 18 is fastened to exhaust passage 14.The second portion 52 of inlet duct 42 can radially expand to be provided for the mounting surface 54 quantitatively feeding module 24 (not shown).Please refer to shown in Fig. 9 and Figure 17, described mounting surface 54 tilts.Mounting surface 54 can limit the aperture 56 of the circle of receiving erecting device 58, and this erecting device supports quantitatively feeding module 24 (not shown).The inlet sensor projection seat 60 for receiving sensor (not shown) can be arranged in contiguous aperture 56, and this sensor can be such as the sensor of NOx sensor, temperature transducer, pressure transducer, ammoniacal sensor or any other type well known in the prior art in exhaust aftertreatment.

Outer pipe 44 can comprise the first portion 62 be arranged in the inside 64 of housing 46.Perforated retainer 66 can in housing 46 inner support first portion 62.Perforated retainer 66 can comprise axial extending flanges 68, and this axial extending flanges 68 can soldered, soldering or be fastened to (Fig. 9) on the internal surface 70 of housing 46.The second portion 72 of outer pipe 44 extends from housing 46 and comprises the termination end 74 that can run and be slidably matched with exhaust passage 14.Second portion 72 can be fastened on exhaust passage 14 by clip (not shown).For second portion 72 place receiving the outlet sensor projection seat 76 of another sensor (not shown) can be positioned in outer pipe 44.This sensor can be such as the sensor of known any other type of NOx sensor, temperature transducer, pressure transducer, ammoniacal sensor or exhaust aftertreatment those skilled in the art.Be welded or soldered to the first baffle plate 78 on housing 46 and second baffle 80 is solid, may be used for the opposite end of seal casinghousing 46.

Although it should be understood that inlet duct 42 and outer pipe 44 are not shown as in fig .9 to axially align, present application contemplates the configuration that inlet duct 42 and outer pipe 44 are axially aligned.Inlet duct 42 and outer pipe 44 are not when axially aligning, and the second plate washer 80 can comprise the axially extended projection 82 that directing exhaust gas flows to multiple perforation 84, and these perforation 84 can be formed around the whole circumference of the first portion 62 of outer pipe 44.Thus, the exhaust directly not entering outer pipe 44 can at flared end 86 place first through perforated retainer 66.After passing perforated retainer 66, exhaust can guide towards the perforation 84 be formed in outer pipe 44 by projection 82, and wherein this exhaust can enter outer pipe 44 subsequently and leave exhaust aftertreatment components 18.

The exhaust that electric hybrid module 40 makes motor 12 produce quantitatively mixes to the reagent delivered in exhaust mutually with by quantitatively feeding module 24.Before can interactional amount of time at the base material (such as SCR20) arriving catalyst-coated in order to increase exhaust and reagent, electric hybrid module 40 is designed to: enter the inside 64 of housing 46 allowing mixture and before the base material arriving catalyst-coated or filter 20 and 21, allow exhaust flows along first direction with the mixture of reagent and will be vented the mixture of reagent oppositely to second direction subsequently.In order to make the mixture flow direction of exhaust and reagent carry out oppositely, electric hybrid module 40 can comprise the outer perforated pipe 88 and interior perforated pipe 90 that coaxially arrange for a pair.

Outer perforated pipe 88 comprises the first end 92 of the second portion 52 receiving inlet duct 42.First end 92 of outer perforated pipe 88 can be positioned in the outside of housing 46, and the first simultaneously solid baffle plate 78 supports outer perforated pipe 88 in the position of contiguous first end 92.Second end 94 of outer perforated pipe 88 extends in housing 46.Third gear plate 96 is positioned as contiguous second end 94, and this third gear plate 96 has the multiple through holes 98 be formed at wherein.Multiple through holes 98 of third gear plate 96 are designed to allow after electric hybrid module 40 is left in exhaust and flow to SCR20.

Bending end cap 100 can be secured on the second end 94 of outer perforated pipe 88.End cap 100 can be bending to force exhaust to be flowed on the direction of inlet duct 42 returning.End cap 100 can be secured on the second end 94 by the mode of (such as welding or soldering), and wherein the second end 94 is completely sealed and forces whole exhaust air flow in the other direction towards inlet duct 42.Alternately, as best illustrated in Fig. 6, Fig. 7 and Figure 10, the second end 94 can comprise jagged edge 102.Multiple recess 104 defines jagged edge 102, and the length had of each recess 104 is greater than the length of the axial extending flanges 106 be formed on end cap 100.Because the length that each recess 104 has is greater than the length of axial extending flanges 106, when end cap 100 is secured on the second end 94, each recess 104 will fully not covered by axial extending flanges 106, this causes the formation of exit orifice 108, and this exit orifice 108 allows part exhaust before inlet duct 42, to leave electric hybrid module 40 directed the returning of inverse direction.This configuration contributes to preventing from producing back pressure in exhaust aftertreatment components 18.

Electric hybrid module 40 also comprises interior perforated pipe 90.The diameter D2 that interior perforated pipe 90 has is less than the diameter D1 of outer perforated pipe 88, interior perforated pipe 90 can be positioned in outer perforated pipe 88 completely and coaxially arrange with outer perforated pipe.The collar 110 can be used to interior perforated pipe 90 to be fastened within outer perforated pipe 88.The collar 110 can be secured on outer perforated pipe 88 in the position of contiguous first end 92.The collar 110 comprises the columniform first surface 112 be secured on the first end 92 of outer perforated pipe 88 and the columniform second surface 114 be secured on interior perforated pipe 90.Can have radial constriction 116 between columniform first surface 112 and columniform second surface 114, this radial constriction 116 provides funnel shaped to the collar 110.Because inlet duct 42 radial direction expands to provide mounting surface 54, reagent quantitative is being tending towards slow to the position delivered in exhaust stream by the speed of exhaust air flow.In order to the decline on compensation speed, the funnel shaped of the collar 110 contributes to the speed increasing exhaust air flow when being vented and entering interior perforated pipe 90.Increase in speed also contributes to the mutual mixing of reagent and exhaust.

Interior perforated pipe 90 comprises the free terminal 118 of contiguous end cap 100 location.Free terminal 118 can lean end cap 100 or can be spaced apart with end cap 100.If free terminal 118 leans end cap 100, free terminal 118 can be formed the zig-zag configuration with similar outer perforated pipe 88, thus contributes to alleviating the back pressure in electric hybrid module 40.Interior perforated pipe 90 can be included in multiple first perforation 120 of the position of contiguous free terminal 118.Multiple first perforation 120 can be formed around the whole circumference of interior perforated pipe 90.

When exhaust enters inlet duct 42, reagent pump-down process fluid will by quantitatively feeding module 24 quantitatively to delivering in exhaust stream.By pump-down process fluid quantitative to after delivering in exhaust, the mixture of exhaust and pump-down process fluid will enter interior perforated pipe 90 through the collar 110, will increase at the flow velocity of this this mixture.Closing on the position of free terminal 118, mixture can leave interior perforated pipe 90 through multiple first perforation 120 and enter outer perforated pipe 88.Due to the curved surface of end cap 100, can be forced when mixture is outside in perforated pipe 88 and return towards inlet duct 42 in the other direction.When mixture return advance towards inlet duct 42 time, mixture 122 can leave outer perforated pipe 88 and enter the inside 64 of exhaust aftertreatment components 18 through multiple second perforation subsequently.Multiple second perforation 122 can be formed around the whole circumference of outer perforated pipe 88.Mixture subsequently can through multiple through holes 98 of third gear plate 96 towards the base material of catalyst-coated or filter 20 and 21.After through base material or filter 20 and 21, treated exhaust directly can enter outer pipe 44 or enter outer pipe 44 after through perforated retainer 66 and multiple perforation 84.Exhaust aftertreatment components 18 can be left through outer pipe 44 with final vacuum.

It should be understood that multiple first perforation 120 of interior perforated pipe 90 are not bored a hole 122 axially overlapping with multiple second of outer perforated pipe 88.But, exhaust mixture need to flow through interior perforated pipe 90 and subsequently before leaving outer perforated pipe 88 oppositely.By making exhaust mixture reverse, exhaust and reagent pump-down process fluid can mix to a great extent mutually.Further, the interior perforated pipe 88 arranged because coaxial and outer perforated pipe 90 allow flow path to have the length of increase, and this configuration allow for less and compacter exhaust aftertreatment components.

The second exemplary embodiment according to the application will be described now.This second exemplary embodiment is similar to this first exemplary embodiment.Correspondingly, the description of common trait between each embodiment will be omitted in.See Figure 11 to Figure 18, illustrate exhaust aftertreatment components 124.Essential difference between exhaust aftertreatment components 124 and exhaust aftertreatment components 18 is that the inlet duct 42 of exhaust aftertreatment components 124 is arranged to the axis A perpendicular to housing 126 longitudinal direction.In order to realize the axis A be arranged to by inlet duct 42 perpendicular to housing 126 longitudinal direction, housing 126 can be equipped with the annular flange flange 128 of the second portion 52 receiving inlet duct 42.By any attachment method well known by persons skilled in the art (comprising welding, soldering and similar approach), inlet duct 42 can be fastened in annular flange flange 128.Because inlet duct 42 and outer pipe 44 are no longer positioned in the opposite end place of housing 126, housing lid 130 can be used at one end place contrary with the position at outer pipe 44 place (via such as welding, soldering or similar approach) seal casinghousing 126.

Exhaust aftertreatment components 124 comprises the electric hybrid module 132 that neighboring entry pipe 42 is located.The exhaust that electric hybrid module 132 makes motor 12 produce quantitatively mixes to the reagent delivered in exhaust mutually with by quantitatively feeding module 24.Before can interactional amount of time at the base material (such as SCR20) arriving catalyst-coated in order to increase exhaust and reagent, electric hybrid module 132 is designed to: enter the inside 64 of housing 126 allowing mixture and before the base material arriving catalyst-coated or filter 20 and 21, allow the mixture of exhaust and reagent along first direction flowing and subsequently by be vented and the mixture of reagent oppositely to second direction.In order to change the flow direction of the mixture of exhaust and reagent, be similar to this first embodiment, electric hybrid module 132 can comprise a pair perforated pipe 134 and 136 coaxially arranged.

Outer perforated pipe 134 comprises the first end 138 of the second portion 52 receiving inlet duct 42.Bending end cap 140 can be secured on the second end 142 of outer perforated pipe 134.Although end cap 140 is shown as bending, it should be understood that end cap 140 can be plane and not depart from the scope of the application.End cap 140 can be secured on the second end 142 by the mode of (such as welding or soldering), and wherein the second end 142 is completely sealed and forces whole exhaust air flow in the other direction towards inlet duct 42.Alternately, as best illustrated in Figure 15 to Figure 18, the second end 142 can comprise jagged edge 102.Multiple recess 104 defines jagged edge 102, and the length that each recess 104 has is greater than the length of the axial extending flanges 106 be formed on end cap 140.Because the length that each recess 104 has is greater than the length of axial extending flanges 106, when end cap 140 is secured on the second end 142, each recess 104 will fully not covered by axial extending flanges 106, this causes the formation of exit orifice 108, and this exit orifice 108 allows part exhaust to leave electric hybrid module 132 before through multiple second perforation 144 be formed in outer perforated pipe 134.This configuration contributes to preventing from producing back pressure in exhaust aftertreatment components 124.

Electric hybrid module 132 also comprises interior perforated pipe 136.The diameter D2 that interior perforated pipe 136 has is less than the diameter D1 of outer perforated pipe 134, interior perforated pipe 136 can be positioned in outer perforated pipe 134 completely and coaxially arrange with outer perforated pipe.The funnel shaped collar 110 can be used to interior perforated pipe 136 to be fastened within outer perforated pipe 134.

Interior perforated pipe 136 comprises the free terminal 118 of contiguous end cap 140 location.Free terminal 118 can lean end cap 140 or, as in Figure 17 and Figure 18 show, can end cap 140 be passed, make free terminal 118 can be spaced apart with end cap 140 like this.Free terminal 118 can be formed to have zig-zag configuration, and this saw tooth configuration has multiple teeth 146 that are corresponding with the multiple elongate aperture be formed in end cap 140 and that pass wherein.Due to the corresponding arrangement between multiple tooth 146 and multiple elongate aperture of end cap 140, interior perforated pipe 136 does not need to be fixedly secured on end cap 140.But end cap 140 can be fixedly secured on outer perforated pipe 134.Interior perforated pipe 136 can comprise multiple first perforation 150, and these perforation allow the mixture of exhaust and reagent pump-down process fluid leave interior perforated pipe 136 and enter outer perforated pipe 134.

It should be understood that multiple first perforation 150 of interior perforated pipe 136 can be formed along the total length of interior perforated pipe 136 substantially, but only formed around a semi-circumference of the circumference of interior perforated pipe 136.In this way, exhaust mixture only can leave interior perforated pipe 136 along first direction.Be similar to interior perforated pipe 136, multiple second perforation 144 of outer perforated pipe 134 are also formed along its total length substantially, and only around a semi-circumference of the circumference of outer perforated pipe 134.But this part comprising multiple second perforation 144 of the circumference of outer perforated pipe 134 should towards boring a hole 150 contrary reverse with multiple first of interior perforated pipe 136.

Such as, can see see Figure 17: multiple first perforation 150 of interior perforated pipe 136 face outer pipe 44, and multiple second perforation 144 of outer perforated pipe 134 face housing lid 130.In this way, exhaust mixture can only along and multiple first bore a hole 150 towards the contrary second direction of first direction leave outer perforated pipe 134.This orientation requires that reverse flow is through electric hybrid module 132, and this can make exhaust and reagent pump-down process fluid mutually mix to a large extent.Further, the inner tube 134 arranged because coaxial and exterior tube 136 allow flow path to have the length of increase, and this configuration allow for less and compacter exhaust aftertreatment components.

When exhaust enters inlet duct 42, reagent pump-down process fluid will by quantitatively feeding module 24 quantitatively to delivering in exhaust stream.By pump-down process fluid quantitative to after delivering in exhaust, the mixture of exhaust and pump-down process fluid will enter interior perforated pipe 136 through the collar 110, will increase at the flow velocity of this this mixture.Closing on the position of free terminal 118, mixture can leave interior perforated pipe 136 being upward through towards the first party of outer pipe 44 multiple first perforation 150 and entering outer perforated pipe 134.After entering outer perforated pipe 134, flowing needs, oppositely towards multiple second perforation 144, to leave outer perforated pipe 134 subsequently and enter the inside 64 of housing 126 at this this exhaust mixture.Mixture subsequently can through the base material of catalyst-coated or filter 20 and 21.After through base material or filter 20 and 21, treated exhaust directly can enter outer pipe 44 or enter outer pipe 44 after through perforated retainer 66 and multiple perforation 84.Exhaust aftertreatment components 124 can be left through outer pipe 44 with final vacuum.

Provide the foregoing description to these embodiments for the object of showing and illustrate.Be not intended to detailed or restriction the application.The independent element of specific embodiment or feature are not limited to specific embodiment usually, but can exchange at where applicable, and may be used in the selected embodiment even not illustrating especially or set forth.Also can be changed it with various ways.Such change is not deemed to be and has departed from teachings herein, and all changes so are all intended to be included within the scope of teachings herein.

Claims

1. an electric hybrid module, can be used in exhaust aftertreatment components, it is characterized in that, described electric hybrid module comprises outer perforated pipe, interior perforated pipe, the collar connecting described outer perforated pipe and described interior perforated pipe and the end cap be fixed on described outer perforated pipe, wherein said interior perforated pipe is arranged in described outer perforated pipe, the described collar and described end cap lay respectively at the two ends of described interior perforated pipe, the described collar comprises the first surface being fixed on described outer perforated pipe, be fixed on the second surface of described interior perforated pipe, and the radial constriction between described first surface and described second surface, described radial constriction provides funnel shaped to the described collar, described interior perforated pipe is provided with multiple first perforation, described outer perforated pipe is provided with multiple second perforation.

2. electric hybrid module as claimed in claim 1, it is characterized in that, described outer perforated pipe and described interior perforated pipe are cylindrical shape, described first perforation and described second is bored a hole and is distributed in described interior perforated pipe and described outer perforated pipe respectively circumferentially, the diameter of described interior perforated pipe is less than the diameter of described outer perforated pipe, and described outer perforated pipe and described interior perforated pipe are coaxially arranged.

3. electric hybrid module as claimed in claim 1, it is characterized in that, described first surface and the described second surface of the described collar are cylndrical surface, described first surface is fixed on the internal surface of described outer perforated pipe, and described second surface to insert in described interior perforated pipe and is fixed on the internal surface of described interior perforated pipe.

4. electric hybrid module as claimed in claim 1, it is characterized in that, described radial constriction shrinks gradually along the axis of described outer perforated pipe and/or described interior perforated pipe, and described funnel shaped is conical.

5. electric hybrid module as claimed in claim 1, it is characterized in that, described outer perforated pipe comprises the first end and second end relative with described first end, and the described collar is near described first end, and described end cap is fixed on described second end.

6. electric hybrid module as claimed in claim 5, it is characterized in that, described end cap has the curved surface protruded to the direction away from the described collar, to force exhaust reverse flow.

7. electric hybrid module as claimed in claim 6, it is characterized in that, described interior perforated pipe comprises the free terminal of contiguous described end cap, and described free terminal extends axially beyond described second end, and described free terminal leans the inwall of described end cap or the spaced apart from inner walls with described end cap.

8. electric hybrid module as claimed in claim 7, it is characterized in that, described free terminal leans the inwall of described end cap, and described free terminal offers recess on its edge to form zig-zag configuration.

9. electric hybrid module as claimed in claim 1, it is characterized in that, described electric hybrid module cross setting, described first perforation is circumferentially distributed on described interior perforated pipe, described second perforation is circumferentially distributed on described outer perforated pipe, and described first perforation and described second to bore a hole at described outer perforated pipe and/or described interior perforated pipe axially not overlapped.

10. electric hybrid module as claimed in claim 1, it is characterized in that, described electric hybrid module is vertically arranged, the half that described first perforation is formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that described second perforation is formed on the circumference of this outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

11. electric hybrid modules as claimed in claim 5, it is characterized in that, described end cap comprises the axial extending flanges be connected on described second end, described second end is provided with the jagged edge formed by multiple recess, and the length of described recess is greater than the length of described axial extending flanges to form multiple exit orifice.

12. 1 kinds of electric hybrid modules, can be used in exhaust aftertreatment components, it is characterized in that, described electric hybrid module comprises outer perforated pipe, interior perforated pipe, the collar connecting described outer perforated pipe and described interior perforated pipe and the end cap be fixed on described outer perforated pipe, wherein said interior perforated pipe is arranged in described outer perforated pipe, the described collar comprises the first surface being fixed on described outer perforated pipe, be fixed on the second surface of described interior perforated pipe, and the radial constriction between described first surface and described second surface, described interior perforated pipe is provided with multiple first perforation, described outer perforated pipe is provided with multiple second perforation, described end cap has the curved surface that protrudes to the direction away from the described collar to force exhaust reverse flow, described electric hybrid module enters described interior perforated pipe for making the exhaust from motor under the guiding of the described collar, then be vented through described first region of the perforation flow direction described outer perforated pipe and described interior perforated pipe, finally leave from described second perforation.

13. electric hybrid modules as claimed in claim 12, it is characterized in that, described outer perforated pipe and described interior perforated pipe are cylindrical shape, described first perforation and described second is bored a hole and is distributed in described interior perforated pipe and described outer perforated pipe respectively circumferentially, the diameter of described interior perforated pipe is less than the diameter of described outer perforated pipe, and described outer perforated pipe and described interior perforated pipe are coaxially arranged.

14. electric hybrid modules as claimed in claim 12, it is characterized in that, described first surface and the described second surface of the described collar are cylndrical surface, described first surface is fixed on the internal surface of described outer perforated pipe, and described second surface to insert in described interior perforated pipe and is fixed on the internal surface of described interior perforated pipe.

15. electric hybrid modules as claimed in claim 12, is characterized in that, described radial constriction shrinks along the axis of described outer perforated pipe and/or described interior perforated pipe, gradually to form conical funnel shaped.

16. electric hybrid modules as claimed in claim 12, it is characterized in that, described outer perforated pipe comprises the first end and second end relative with described first end, the described collar is near described first end, and described end cap is fixed on described second end.

17. electric hybrid modules as claimed in claim 16, it is characterized in that, described interior perforated pipe comprises the free terminal of contiguous described end cap, described free terminal extends beyond described second end, described free terminal leans the inwall of described end cap, and described free terminal offers recess on its edge to form zig-zag configuration.

18. electric hybrid modules as claimed in claim 12, it is characterized in that, described electric hybrid module cross setting, described first perforation is circumferentially distributed on described interior perforated pipe, described second perforation is circumferentially distributed on described outer perforated pipe, and described first perforation and described second to bore a hole at described outer perforated pipe and/or described interior perforated pipe axially not overlapped.

19. electric hybrid modules as claimed in claim 12, it is characterized in that, described electric hybrid module is vertically arranged, the half that described first perforation is only formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that described second perforation is only formed on the circumference of this outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

20. 1 kinds of inlet duct assemblies, it comprises inlet duct and electric hybrid module, the second portion that described inlet duct comprises first portion and is connected with described first portion, described electric hybrid module is connected with described second portion, described second portion radial direction expands with the mounting surface formed for installing quantitatively feeding module, and described mounting surface is provided with the aperture of receiving erecting device, and described erecting device is in order to support described quantitative feeding module, it is characterized in that

Described electric hybrid module is the electric hybrid module in claim 1 to 19 described in any one.

21. inlet duct assemblies as claimed in claim 20, it is characterized in that, described mounting surface tilts, described second portion to insert at least partly in described outer perforated pipe and fixes with described outer perforated pipe, and described inlet duct also comprises contiguous described aperture and for receiving the inlet sensor projection seat of sensor.

22. 1 kinds of exhaust aftertreatment components, for the treatment of the exhaust stream that motor produces, described exhaust aftertreatment components comprises,

There is the housing of inlet duct and outer pipe;

Base material between described inlet duct and described outer pipe, the coating of catalyzed dose of described base material, described base material is positioned at described housing;

Aperture, described aperture is communicated with described exhaust stream, in order to by pump-down process fluid quantitative to delivering in described exhaust stream; And

Electric hybrid module, described electric hybrid module is positioned at described housing and is positioned at the downstream in described aperture and the upstream of described base material, and described electric hybrid module and described inlet duct link together, and it is characterized in that,

23. exhaust aftertreatment components as claimed in claim 22, is characterized in that,

Described inlet duct, described electric hybrid module and the equal cross setting of described outer pipe and be parallel to each other; Or

Described inlet duct and described electric hybrid module are vertically arranged, described outer pipe cross setting and perpendicular to described inlet duct and described electric hybrid module.

24. exhaust aftertreatment components as claimed in claim 22, it is characterized in that, described housing comprises the first baffle plate, second baffle and the third gear plate between described first baffle plate and described second baffle, described first baffle plate and described second baffle are the solid opposite end to seal described housing, described outer perforated pipe through described first baffle plate and described third gear plate with by described first baffle plate and described third gear plate support, described outer perforated pipe and described interior perforated pipe extend beyond described third gear plate at least partly, described third gear plate is provided with the described biperforate through hole of some connections, and described through hole is positioned at the radial outside of described outer perforated pipe diametrically.

25. exhaust aftertreatment components as claimed in claim 24, it is characterized in that, along axially seeing of described electric hybrid module, the described collar is positioned at the side away from third gear plate of described first baffle plate, described first perforation is between described first baffle plate and described third gear plate, and described through hole is positioned at the side away from the first baffle plate of described third gear plate.

26. exhaust aftertreatment components as claimed in claim 24, it is characterized in that, described housing comprises the perforated retainer supporting described outer pipe, and described outer pipe is provided with the perforation between described perforated retainer and described second baffle.

27. exhaust aftertreatment components as claimed in claim 22, it is characterized in that, described base material replaces with filter.

28. 1 kinds of exhaust aftertreatment components, for the treatment of the exhaust stream that motor produces, described exhaust aftertreatment components comprises:

There is the housing of inlet duct and outer pipe;

Electric hybrid module, described electric hybrid module is positioned at described housing and is positioned at the downstream in described aperture and the upstream of described base material, described electric hybrid module and described inlet duct link together, the end cap that described electric hybrid module comprises the outer perforated pipe with an end, interior perforated pipe and is connected on the described end of described outer perforated pipe and described interior perforated pipe

It is characterized in that, described interior perforated pipe is positioned at described outer perforated pipe and coaxially arranges with described outer perforated pipe, described interior perforated pipe comprises multiple first perforation forcing the flowing in the other direction of described exhaust stream, and described outer perforated pipe comprises multiple second perforation, be vented and flow through these the second perforation after flowing through these first perforation.

29. exhaust aftertreatment components as claimed in claim 28, is characterized in that, these first perforation not with these second bore a hole axially overlapping.

30. exhaust aftertreatment components as claimed in claim 28, it is characterized in that, the half that these first perforation are formed on the circumference of described interior perforated pipe is circumferentially and towards first direction, and the half that these second perforation are formed on the circumference of described outer perforated pipe is circumferentially and towards second direction opposite to the first direction.

31. exhaust aftertreatment components as claimed in claim 29, is characterized in that, the axis being parallel arrangement of described inlet duct and described electric hybrid module and described housing.

32. exhaust aftertreatment components as claimed in claim 28, it is characterized in that, described inlet duct and described electric hybrid module are arranged to the axis perpendicular to described housing.

The exhaust aftertreatment components of 33. 1 kinds of exhaust streams produced for the treatment of motor, described exhaust aftertreatment components comprises:

For carrying the housing of described exhaust stream;

Through the aperture that described housing extends, described aperture is used for pump-down process fluid quantitative to delivering in described exhaust stream;

Exhaust aftertreatment component, described exhaust aftertreatment component is positioned in downstream in described housing and is positioned at the downstream in described aperture, and described exhaust aftertreatment component comprises at least one pump-down process base material or filter between the inlet duct and outer pipe of described housing; And

Be connected to the electric hybrid module of described inlet duct, it is characterized in that, described electric hybrid module comprises outer perforated pipe and interior perforated pipe, described interior perforated pipe is included in multiple first perforation of its circumference, described outer perforated pipe is included in multiple second perforation of its circumference, described interior perforated pipe to be disposed in described outer perforated pipe and coaxially to arrange with described outer perforated pipe, and described interior perforated pipe is connected on described outer perforated pipe via the funnel shape collar

Wherein, these first perforation not with these second bore a hole axially overlapping, and

Described electric hybrid module is configured to make described exhaust stream through described interior perforated pipe, guide described exhaust stream to enter in described outer perforated pipe through these first perforation, make the flow inversion of described exhaust stream and guide described exhaust stream to enter the inside of described housing through these second perforation towards these second perforation.

34. exhaust aftertreatment components as claimed in claim 33, it is characterized in that, described inlet duct and described electric hybrid module are arranged to the axis being parallel with described housing.

35. exhaust aftertreatment components as claimed in claim 34, it is characterized in that, described outer pipe comprises the first end of the inside being disposed in described housing, and described first end is supported by perforated retainer, and described first end comprises multiple perforation.

The exhaust aftertreatment components of 36. 1 kinds of exhaust streams produced for the treatment of motor, described exhaust aftertreatment components comprises:

For carrying the housing of described exhaust stream;

Exhaust aftertreatment component, described exhaust aftertreatment component to be positioned in described housing and to be positioned at the downstream in described aperture, and described exhaust aftertreatment component comprises at least one pump-down process base material or filter between the inlet duct and outer pipe of described housing; And

Be connected to the electric hybrid module of described inlet duct, it is characterized in that, described electric hybrid module comprises outer perforated pipe and interior perforated pipe, described interior perforated pipe is included in multiple first perforation of the half circumference of its circumference, described outer perforated pipe is included in multiple second perforation of the half circumference of its circumference, described interior perforated pipe to be disposed in described outer perforated pipe and coaxially to arrange with described outer perforated pipe, and described interior perforated pipe is connected on described outer perforated pipe via the funnel shape collar

Wherein, these first perforation towards first direction and these second perforation towards second direction opposite to the first direction, and

Described electric hybrid module be configured to receive described exhaust stream through described interior perforated pipe, guide described exhaust stream to enter in described outer perforated pipe through these first perforation, make the flow inversion of described exhaust stream and guide described exhaust stream to enter the inside of described housing through these second perforation towards these second perforation.

37. exhaust aftertreatment components as claimed in claim 36, it is characterized in that, described inlet duct and described electric hybrid module are arranged to the axis perpendicular to described housing.

38. exhaust aftertreatment components as claimed in claim 36, it is characterized in that, described outer pipe comprises the first end of the inside being disposed in described housing, and described first end is supported by perforated retainer, and described first end comprises multiple perforation.