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CN101341326A - Exhaust dispersion device - Google Patents

Exhaust dispersion device Download PDF

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Publication number
CN101341326A
CN101341326A CNA2006800480888A CN200680048088A CN101341326A CN 101341326 A CN101341326 A CN 101341326A CN A2006800480888 A CNA2006800480888 A CN A2006800480888A CN 200680048088 A CN200680048088 A CN 200680048088A CN 101341326 A CN101341326 A CN 101341326A
Authority
CN
China
Prior art keywords
component
axis
pervasion component
dispersion device
outflow member
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.)
Pending
Application number
CNA2006800480888A
Other languages
Chinese (zh)
Inventor
詹姆斯·W·吉拉德
菲根·拉钦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tenneco Automotive Operating Co Inc
Original Assignee
Tenneco Automotive Operating Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tenneco Automotive Operating Co Inc filed Critical Tenneco Automotive Operating Co Inc
Publication of CN101341326A publication Critical patent/CN101341326A/en
Pending legal-status Critical Current

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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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • 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
    • F01N13/20—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 flared outlets, e.g. of fish-tail shape

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Silencers (AREA)

Abstract

An exhaust dispersion device for an exhaust system with an outer flow member is disclosed. The exhaust dispersion device includes a dispersion member capable of being disposed within the outer flow member. The dispersion member defines an axis and includes an upstream end and a downstream end. A cross section of the downstream end perpendicular to the axis is larger than a cross section of the upstream end perpendicular to the axis. The dispersion device also includes an aperture extending through the dispersion member. The aperture is coaxial with the axis. Flow of all exhaust gas through the outer flow member is divided between flow through the aperture and flow between the outer flow member and the dispersion member. The dispersion member is operable to divert the flow of the exhaust gas at least partially toward the outer flow member.

Description

Exhaust dispersion device
Technical field
Present invention relates in general to a kind of vent systems, relate more specifically to a kind of exhaust dispersion device that is used for vent systems.
Background technique
Description in the background technique only provides background technical information related to the present invention, might not constitute prior art.
Now there has been the multiple vent systems that is used for vehicle and other machines.Some vent systems comprises catalytic converter, diesel particulate filter, nitrogen oxide trap, or other are provided with and are used to handle the device of one or more carriers of waste gas of vent systems of flowing through.
Usually wish to keep the uniformity of carrier surface off-gas flows in the radial direction.Why do like this is because can improve the working efficiency of carrier.For example, in diesel particulate filter, if exhaust flow talk about uniformly, just coal smoke more likely distributes on carrier equably.In addition, the regeneration in the system can more effectively be carried out.The Another reason of expectation airflow homogeneity is the working life that can improve carrier.For example, if carrier produces the true temperature gradient in the radial direction, then carrier may ftracture; But, if the more uniform words of the off-gas flows on the carrier surface just are not easy to produce the true temperature gradient.
But in existing vent systems, the exhaust gas flow at the axle center of carrier surface place is usually greater than the exhaust gas flow of the radially outside position of carrier surface.So, the operational efficiency of carrier is lower, and carrier is easier to be impaired.Therefore, need provide a kind of more uniform vent systems of exhaust flow that makes on the carrier surface.
Summary of the invention
The present invention relates to a kind of exhaust dispersion device that is used to have the vent systems of outflow member.This exhaust dispersion device comprises the pervasion component that can be arranged in the outflow member.Pervasion component limits an axis and comprises upstream extremity and downstream.Downstream perpendicular to cross section, the cross section of this axis perpendicular to this axis greater than upstream extremity.This exhaust dispersion device also comprises the aperture of running through the pervasion component extension.This aperture and this axis coaxle.The all waste gases stream of outflow member of flowing through is divided into the air-flow that flows through the aperture and airflow flowing between outflow member and pervasion component.Pervasion component can make exhaust flow at least in part towards the deflection of outflow member.
In yet another aspect, the present invention relates to a kind of vent systems, this vent systems comprises the outflow member and is arranged on the interior exhaust dispersion device of outflow member.This exhaust dispersion device comprises the pervasion component that limits an axis.Pervasion component comprises upstream extremity and downstream.Downstream perpendicular to cross section, the cross section of this axis perpendicular to this axis greater than upstream extremity.Exhaust dispersion device also comprises the aperture of running through the pervasion component extension.This aperture and this axis coaxle.The all waste gases air-flow of outflow member of flowing through is divided into the air-flow that flows through this aperture and airflow flowing between outflow member and pervasion component.Pervasion component can make exhaust flow at least in part towards the deflection of outflow member.
In yet another aspect, the present invention relates to a kind of vent systems that is used for vehicle, this vent systems comprises outflow member and carrier, and this carrier is arranged in the outflow member, makes that the waste gas in the outflow member can flow to carrier.This vent systems also comprises the exhaust dispersion device that is positioned at the outflow member.This exhaust dispersion device comprises the pervasion component that limits an axis.Pervasion component comprises upstream extremity and downstream.Downstream perpendicular to cross section, the cross section of this axis perpendicular to this axis greater than upstream extremity.This exhaust dispersion device also comprises the aperture of running through the pervasion component extension.This aperture and this axis coaxle.The all waste gases stream of outflow member of flowing through is divided into the air-flow that flows to the air-flow of carrier through this aperture and flow to carrier between outflow member and pervasion component.When exhaust flow during to carrier, pervasion component can make exhaust flow at least in part towards the deflection of outflow member.
By following description, the further application of the present invention will become apparent.Should be understood that following description and concrete example only are used for the illustrative purpose, are not to be used to limit the scope of the invention.
Description of drawings
Accompanying drawing described herein only is used for the illustrative purpose, scope of the present invention is not constituted any restriction, wherein:
Fig. 1 is the partial section of vent systems that is provided with the vehicle of exhaust dispersion device.
Fig. 2 is the stereogram of vent systems shown in Figure 1.
Fig. 3 is the stereogram of this another mode of execution of exhaust dispersion device.
Fig. 4 is the end elevation of exhaust dispersion device shown in Figure 3.
Embodiment
Below describing only is exemplary from essence, is not intended to limit invention, its application, or uses.Should be understood that, in each accompanying drawing, corresponding reference character identical or corresponding parts of representative and feature.
Referring now to Fig. 1 and Fig. 2, wherein show the part of vent systems 12 of the part of vehicle 10-specifically.Will be appreciated that under the situation that does not depart from scope of the present invention, vent systems 12 also can be applied to other any machines except that vehicle 10.
Vent systems 12 comprises outflow member 14.Under the situation that does not depart from scope of the present invention, outflow member 14 also can be such as tail-gas after treatment apparatus such as catalytic converter, diesel particulate filter, nitrogen oxide traps, and/or the part of any proper device.
Vent systems 12 also comprises carrier 16 (Fig. 1).Carrier 16 places in the outflow member 14.Carrier 16 can be used for removing the harmful matter of flowing through in the waste gas of vent systems 12.More specifically, vent systems 12 is communicated with motor (not shown) fluid, flows to carrier 16 from the waste gas of motor through outflow member 14.Exhaust flow is crossed carrier 16, and carrier 16 is removed such as harmful matters such as coal smoke, carbon monoxide, unburned hydrocarbons, particulate matters.
Vent systems 12 also comprises and is denoted as 18 exhaust dispersion device generally.As described below, exhaust dispersion device 18 can make the exhaust flow of upstream face 20 of the carrier 16 of flowing through more even.
In illustrated embodiment, outflow member 14 comprises inlet component 11 and truncated cone shape member 13.Truncated cone shape member 13 connects at transition part 15 places with inlet component 11.Transition part 15 can have any suitable radius.In one embodiment, inlet component 11 is connected on the truncated cone shape member 13 by welding.In another embodiment, inlet component 11 is connected integratedly with truncated cone shape member 13.In illustrated embodiment, the cross section of inlet component 11 is rounded, and inlet component 11 is coaxial with truncated cone shape member 13.But, will be appreciated that under the situation that does not depart from scope of the present invention, outflow member 14 also can have any suitable shape.
Truncated cone shape member 13 less ends connect with inlet component 11, make the cross-section area of outflow member 14 increase gradually along the direction away from inlet component 11.In addition, in illustrated embodiment, place the outflow member 14 carrier 16 be arranged at the outflow member 14 the maximum cross-section area place.
Exhaust dispersion device 18 comprises inlet component 22 and the pervasion component 24 that is connected on the inlet component 22.In illustrated embodiment, the cross section of inlet component 22 is rounded and along axial straight-line extension, makes that the sectional area perpendicular to axis A of inlet component 22 is constant substantially along the length direction of inlet component 22.On the other hand, pervasion component 24 is truncated cone shape and comprises upstream extremity 26 and downstream 28 (Fig. 1).The upstream extremity 26 and the inlet component 22 of pervasion component 24 link.Therefore, downstream 28 perpendicular to cross section, the cross section of axis A perpendicular to axis A greater than downstream 26.Should be realized that under the situation that does not depart from scope of the present invention, inlet component 22 and pervasion component 24 can be any suitable shapes.
Exhaust dispersion device 18 also comprises the aperture 30 (Fig. 2) of running through inlet component 22 and pervasion component 24 extensions.Aperture 30 is coaxial with axis A.In illustrated embodiment, the wall thickness of inlet component 22 and pervasion component 24 remains unchanged along the length direction of exhaust dispersion device 18, make the sectional area at a sector hole mouth 30 that runs through inlet component 22 remain unchanged, the sectional area in aperture 30 increases gradually when the length direction along pervasion component 24 leaves inlet component 22.Therefore, all waste gases stream (illustrating with dotted arrow among Fig. 1) is divided into and passes aperture 30 and flow to the air-flow of carrier 16 and flow to the air-flow of carrier 16 between outflow member 14 and exhaust dispersion device 18.
Exhaust dispersion device 18 also comprises at least one supporting member 32.In illustrated embodiment, exhaust dispersion device 18 comprises a plurality of supporting members 32 that equidistantly distribute around axis A.One end of each supporting member 32 is connected on the inlet component 22, and the other end is connected on the outflow member 14.In illustrated embodiment, each supporting member 32 comprises the protuberance 34 that is positioned at the one end, with being connected of convenient and the member 14 that outflows.In one embodiment, exhaust dispersion device 18 is connected on the inlet component 11 of outflow member 14, and truncated cone shape member 13 is connected on the inlet component 11 subsequently.
Therefore, supporting member 32 is connected to exhaust dispersion device 18 on the outflow member 14, makes inlet component 22 be positioned at the upstream of pervasion component 24.Supporting member 32 also is connected to exhaust dispersion device 18 on the outflow member 14, thereby pervasion component 24 is arranged to and the member 14 spaced positions relation that outflows.In illustrated embodiment, pervasion component 24 and inlet component 22 are coaxial with outflow member 14; But under the situation that does not depart from scope of the present invention, pervasion component 24 and inlet component 22 also can be with respect to outflow member 14 and depart from setting.
In addition, exhaust dispersion device 18 is arranged in the outflow member 14, makes that to pass transition part 15 substantially crossing with exhaust dispersion device 18 perpendicular to the cross section of axis A.In addition, between the circumferential wall of axis A and outflow member 14 first angle theta that records equal at the most second angle theta that records between the circumferential wall of axis A and pervasion component 24 '.In this embodiment, first angle theta less than second angle theta '.
Shown in the dotted arrow among Fig. 1, exhaust dispersion device 18 forces exhaust flow outwards radially to flow towards outflow member 14.Therefore, exhaust flow can distribute on the upstream face 20 of carrier 16 more equably.So, carrier 16 can move more effectively, thereby can prolong the working life of carrier 16.
Referring now to Fig. 3 and Fig. 4, there is shown another mode of execution of exhaust dispersion device 118, add that respectively 100 represent identical technical characteristics wherein for the reference character in the mode of execution illustrated in figures 1 and 2.As shown in the figure, exhaust dispersion device 118 comprises pervasion component 124 and a plurality of supporting member 132.Exhaust dispersion device 118 also comprises from downstream 128 upstream holds 126 reliefs (relief) 133 that extend.Each side of each supporting member 132 all is provided with relief 133.
In addition, each supporting member 132 comprises upstream face 135.As shown in Figure 4, upstream face 135 is arranged to and is θ perpendicular to the positive angle between the plane of axis A ".Therefore, by pervasion component 124, exhaust flow to small part flows to the outflow member, and the upstream face 135 of each supporting member 132 further makes exhaust flow deflection, so that air-flow distributes on the upstream face of carrier more equably.

Claims (20)

1. exhaust dispersion device that is used to have the vent systems of outflow member, described exhaust dispersion device comprises:
Pervasion component, described pervasion component can be arranged in the described outflow member, and wherein, described pervasion component is limited with axis, and described pervasion component comprises upstream extremity and downstream, described downstream perpendicular to cross section, the cross section of described axis perpendicular to described axis greater than described upstream extremity; And
The aperture, described aperture is run through described pervasion component and is extended, wherein, described aperture and described axis coaxle, and all waste gases stream of the described outflow member of flowing through is divided into the air-flow that flows through described aperture and between described outflow member and described pervasion component airflow flowing, and described pervasion component can make exhaust flow at least in part towards the deflection of described outflow member.
2. exhaust dispersion device according to claim 1 further comprises the inlet component that is connected on the described pervasion component, and wherein, described inlet component is run through in described aperture and described pervasion component extends.
3. exhaust dispersion device according to claim 2, wherein, the cross section perpendicular to described axis of described inlet component is constant substantially along the length direction of described inlet component.
4. exhaust dispersion device according to claim 1, wherein, described pervasion component is truncated cone shape.
5. exhaust dispersion device according to claim 1, further comprise at least one supporting member, described at least one supporting member can be attached to described pervasion component described outflow member, thereby makes described pervasion component be arranged to become with described outflow member the relation of space.
6. exhaust dispersion device according to claim 5, wherein, described at least one supporting member comprises upstream face, and described upstream face is arranged to become positive-angle with plane perpendicular to described axis.
7. vent systems comprises:
The outflow member; And
Exhaust dispersion device, described exhaust dispersion device is arranged in the described outflow member, described exhaust dispersion device comprises the pervasion component that is limited with axis, wherein, described pervasion component comprises upstream extremity and downstream, and described downstream perpendicular to cross section, the cross section of described axis perpendicular to described axis greater than described upstream extremity; And
The aperture, described aperture is run through described pervasion component and is extended, wherein, described aperture and described axis coaxle, and all waste gases stream of the described outflow member of flowing through is divided into the air-flow that flows through described aperture and between described outflow member and described pervasion component airflow flowing, and described pervasion component can make exhaust flow at least in part towards the deflection of described outflow member.
8. vent systems according to claim 7 further comprises the inlet component that is connected to described pervasion component and is arranged on described pervasion component upstream, and wherein, described inlet component is run through in described aperture and described pervasion component extends.
9. vent systems according to claim 8, wherein, the cross section perpendicular to described axis of described inlet component is constant substantially along the length direction of described inlet component.
10. vent systems according to claim 7, wherein, described pervasion component is truncated cone shape.
11. vent systems according to claim 10, wherein, described outflow member comprises the truncated cone shape member, and first angle that records between the wall of described axis and described outflow member second angle that equals at the most to record between the wall of described axis and described pervasion component.
12. vent systems according to claim 7, wherein, described outflow member comprise inlet component and with described inlet component at the joining truncated cone shape member of transition part, and pass substantially intersecting of described transition part perpendicular to the cross section of described axis and described exhaust dispersion device.
13. vent systems according to claim 7, wherein, described exhaust dispersion device further comprises at least one supporting member, described at least one supporting member is connected to described exhaust dispersion device on the described outflow member, thereby make described pervasion component be arranged to become the relation of space, and make described pervasion component and described outflow component coaxial with described outflow member.
14. vent systems according to claim 13, wherein, described at least one supporting member comprises upstream face, and described upstream face is arranged to become positive-angle with plane perpendicular to described axis.
15. a vent systems that is used for vehicle comprises:
The outflow member;
Carrier, described carrier are arranged in the described outflow member, make that the waste gas in the described outflow member can be towards described carrier flow; And
Exhaust dispersion device, described exhaust dispersion device is arranged in the described outflow member, described exhaust dispersion device comprises the pervasion component that is limited with axis, described pervasion component comprises upstream extremity and downstream, described upstream extremity perpendicular to cross section, the cross section of described axis perpendicular to described axis greater than described downstream; And
The aperture, described aperture is run through described pervasion component and is extended, wherein, described aperture and described axis coaxle, and all waste gases stream of the described outflow member of flowing through is divided into the air-flow that flows to the air-flow of described carrier through described aperture and flow to described carrier between described outflow member and described pervasion component, and when exhaust flow during to described carrier, described waste gas disperser can make exhaust flow at least in part towards the deflection of described outflow member.
16. vent systems according to claim 15 further comprises the inlet component that is connected to described pervasion component and is arranged on described pervasion component upstream, wherein, described inlet component is run through in described aperture and described pervasion component extends.
17. vent systems according to claim 16, wherein, the cross section perpendicular to described axis of described inlet component is constant substantially along the length direction of described inlet component.
18. vent systems according to claim 15, wherein, described outflow member comprises inlet component and is connected to the truncated cone shape member of described inlet component at transition part, and cross section and the described exhaust dispersion device perpendicular to the described axis that pass described transition part substantially intersect.
19. vent systems according to claim 15, wherein, described pervasion component is truncated cone shape, and described outflow member comprises the truncated cone shape member, and first angle that records between the wall of described outflow member and the described axis equals the wall of described pervasion component and second angle between the described axis at the most.
20. vent systems according to claim 15, wherein, described exhaust dispersion device further comprises at least one supporting member, described at least one supporting member is connected to described exhaust dispersion device on the described outflow member, thereby make described pervasion component be arranged to become the relation of space with described outflow member, and make described pervasion component and described outflow component coaxial, and described at least one supporting member comprises upstream face, and described upstream face is arranged to become positive-angle with plane perpendicular to described axis.
CNA2006800480888A 2005-12-22 2006-11-16 Exhaust dispersion device Pending CN101341326A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/316,170 US20070144158A1 (en) 2005-12-22 2005-12-22 Exhaust dispersion device
US11/316,170 2005-12-22

Publications (1)

Publication Number Publication Date
CN101341326A true CN101341326A (en) 2009-01-07

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Country Status (8)

Country Link
US (1) US20070144158A1 (en)
JP (1) JP2009521639A (en)
KR (1) KR20080080992A (en)
CN (1) CN101341326A (en)
BR (1) BRPI0620635A2 (en)
DE (1) DE112006003493T5 (en)
GB (1) GB2447577A (en)
WO (1) WO2007078441A1 (en)

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DE112006003493T5 (en) 2008-10-23
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JP2009521639A (en) 2009-06-04
US20070144158A1 (en) 2007-06-28

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