CN100543280C - Be used in particular for the heat exchanger of the gaseous effluent of internal-combustion engine - Google Patents
Be used in particular for the heat exchanger of the gaseous effluent of internal-combustion engine Download PDFInfo
- Publication number
- CN100543280C CN100543280C CN 200580014475 CN200580014475A CN100543280C CN 100543280 C CN100543280 C CN 100543280C CN 200580014475 CN200580014475 CN 200580014475 CN 200580014475 A CN200580014475 A CN 200580014475A CN 100543280 C CN100543280 C CN 100543280C
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- Prior art keywords
- heat exchanger
- dividing plate
- pass line
- pipe
- interior pipe
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- Expired - Fee Related
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- Y02T10/121—
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- Y02T10/16—
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of heat exchanger (10), especially for the heat exchanger of the gaseous effluent of internal-combustion engine.The objective of the invention is to, by the suitable structure realization of dividing plate (40) mounting medium is had flow as far as possible and be not separated into two shuntings with leaking.The gaseous effluent that heat exchanger (10) can be used as internal-combustion engine uses, this heat exchanger has heat exchange duct (14) and by-pass line (11), wherein, in circulation duct (25), provided upstream at heat exchanger is equipped with switch valve (20), and this switch valve separates the mounting medium that flow in heat exchange duct and the by-pass line.For keep by by-pass line (11) shunting and by the isolation between the shunting of heat exchange duct (14), and be provided with dividing plate (40), according to the present invention, this dividing plate extends to the top of by-pass line (11) always from switch valve (20).
Description
Technical field
The present invention relates to a kind of heat exchanger, it is particularly useful for the gaseous effluent of internal-combustion engine.
Background technique
The heat exchanger that is used for multiple application is known.In addition, a kind of setting of so-called by-pass line also is known, and it comes the mounting medium of directed flow through heat exchanger from the side on heat exchanger body.In addition, the mounting medium heat exchanger of flowing through, when mounting medium flows in heat exchange area, to heat exchange medium transmit energy or by heat exchange medium when mounting medium transmits energy, heat exchange medium not with the energy interchange of mounting medium generation essence.
The temperature that produces for the mounting medium of regulating or be controlled at the heat exchanger downstream, it is well-known in the heat exchanger upstream end guides to the circulation duct of heat exchanger switch valve being set, this switch valve distributes the mounting medium of inflow with variable shunting, part in this shunting heat exchange duct of flowing through, the by-pass line and another part is flowed through.Determine to flow through the volume flow of by-pass line and the ratio of the relative part of the volume flow that flows through heat exchange duct by means of valve, determine the mix temperature that the heat exchanger downstream is produced.
In order to keep shunting in the zone between switch valve and by-pass line top separatedly, be provided with dividing plate.
The problem that often occurs in this dividing plate is that flow leaks, and it occurs in the zone of dividing plate and from the dividing plate to the heat exchange duct or on the passage of by-pass line.
Summary of the invention
The objective of the invention is to, the suitable structure by dividing plate realizes mounting medium flow to end may be had flow and is not separated into two shuntings with leaking.
This purpose realizes by heat exchanger according to the present invention.
Heat exchanger can be especially for example uses as the heat exchanger of engine exhaust gas cooler, this heat exchanger has heat exchange duct and by-pass line, wherein, in circulation duct, upstream or downstream at heat exchanger are provided with switch valve, and this switch valve is used for separating the mounting medium that flows in heat exchange duct and the by-pass line.For keep by by-pass line shunting and by the isolation between the shunting of heat exchange duct, and be provided with dividing plate, according to the present invention, this dividing plate extends to the top of by-pass line always from switch valve.And design has diffuser between the top of circulation duct and described by-pass line, and its central diaphragm welds with diffuser at least partly.
Because dividing plate extends to the top of by-pass line always, thus realized the good isolation of two shuntings, and prevented that largely bigger flow leaks between two shuntings.This way can realize that two flows separate each other accurately with its ratio, and can realize regulating effectively or controlling the temperature of the mounting medium in heat exchanger downstream therefrom.In heat exchanger, energy transfer is to heat exchange medium in heat exchange duct, heat exchange medium obtains to contact with the heat transmission of mounting medium by the exchange surface in the heat exchange duct zone, thereby makes energy be delivered to mounting medium or be delivered to mounting medium from heat exchange medium.In addition, preset energy interchange in the heat exchange duct zone by the different energy content of mounting medium and heat exchange medium.When avoiding shunting there is the escape of liquid of inestimable influence, can produce mix temperature preferably in the heat exchanger downstream by the variable variation of two splitter sections, thereby can control or regulate the heat energy of the mounting medium in heat exchanger downstream.Because in design proposal of the present invention, dividing plate extends to the top of by-pass line, so avoided escape of liquid always.That is to say, between by-pass line and dividing plate, do not have the slit, thereby can avoid the escape of liquid that in this zone, exists to be different from common solution.
According to a preferred embodiment of the invention, dividing plate is connected with by-pass line, particularly welding.By the escape of liquid between the top of guaranteeing to avoid dividing plate and by-pass line being connected between dividing plate and the by-pass line, and guarantee the good of shunting and effectively separate.
According to another preferred embodiment of the invention, design has diffuser, and it is as the member between the top of circulation duct and by-pass line or heat exchange duct, and its central diaphragm is connected with diffuser at least partly.Use the purpose of diffuser to be, between the circulation duct with less flow cross and heat exchanger, can realize the reasonable transition of circulating with flow cross greatly.In heat exchanger, especially in the zone of heat exchange duct, can realize the flow cross that increases, promptly when lower flowing velocity, can transmit identical volume flow.Lower flowing velocity has improved in the zone of heat exchange duct the possibility of energy interchange between the mounting medium and heat exchange medium.In addition, by being connected of the dividing plate realized and diffuser at least regionally, produced the sealing of improving, and realized the less escape of liquid between two shuntings therefrom, this shunting is produced by switch valve.Provide the position that is positioned at the dividing plate on the diffuser in the side direction part of particularly flowing through being relevant to diffuser, wherein, especially set up the joint between dividing plate and the diffuser in the zone of this device, wherein this joint is specifically designed to the portion of being welded to connect.
Corresponding to the preferred embodiments of the present invention, when switch valve was fixed on the rotatingshaft in the circulation duct, wherein the valve plane of switch valve extended to the upstream of rotatingshaft, and dividing plate extends to rotatingshaft always, particularly was connected with this rotatingshaft.The pipeline that this measure also is used to form seamless (promptly not having leakage), this pipeline extends to the by-pass line of heat exchanger from the end of switch valve always.
According to a preferred embodiment of the invention, by-pass line is by two pipes that are crisscross arranged, and promptly outer tube and interior pipe are formed, wherein, interior pipe inside just therein the heart flow through mounting medium arranged, thus, this mounting medium is guiding from the side on heat exchange duct.
The measure of the pipe and the dual pipe of outer tube provides a kind of interior pipe has been arranged on possibility in the by-pass line in being provided with, and promptly can realize hot vertical circulation.Can realize interior equilibrium of managing thermal expansion by this measure and based on the mounting medium of circulation, and the thermal expansion of interior pipe realizes by corresponding gap and another fixing device of becoming flexible of managing inner pipe.
According to preferred embodiment, dividing plate extends to interior pipe always.By this measure, the transfer of shunting, i.e. by-pass line is flow through in this shunting, and inwardly pipe guiding does not have the top that is directed to circulation duct thus with leaking always.Propose especially in resultant embodiment, the interior pipe on the dividing plate can guide to keep or be fixing, particularly with its welding.By this measure, guaranteed that at first dividing plate and interior pipe are retained in the constant position each other, and can not form escape of liquid in this position.In addition, between cooler and by-pass line, realize the inner sealing that improved, and avoided the tolerance issues between dividing plate and the cooler.Also avoided the problem of tolerance and position balance whereby, the firm joint between dividing plate and the interior pipe is provided.
When dividing plate bent to the end wall that forms vertical sensing circulating direction, it was adapted to following particularly advantageous embodiment of the present invention.End wall has breach, and interior pipe is passed in this breach, and wherein in this part, breach and interior pipe have the profile that corresponds to each other, and in the zone, be connected to each other (particularly welding) become to make breach be formed in the inlet opening of pipe inside.
This embodiment has guaranteed that whole shuntings imports in the interior pipe, and good, the cheap passage of producing are provided between the interior pipe of circulation duct and by-pass line.When mounted, dividing plate can directly keep or be fixed to especially on the interior pipe, and then is installed to the side of heat exchanger, rather than is installed on the switch valve.The fixed-site of pipe in dividing plate can be used in the heat exchanger simultaneously, in addition, has only effect seldom in the long and narrow slit that directly in the zone of the rotatingshaft of switch valve, is used for the balance axial clearance, because this axial clearance is arranged in the mobile shade of axle construction, and to be less than at dividing plate in the escape of liquid of this appearance and be used for FLUID TRANSPORTATION, fluid flow guiding and fluid be imported to the escape of liquid that the zone occurred of the interior pipe of by-pass line.Pipe can guide to remain in the breach in also can being arranged to especially make, but is not to fix with being designed to invariant position, but pipe can remain in the breach when thermal expansion with moving axially in being arranged to make.
According to following preferred embodiment of the present invention, be arranged to make end wall to be defined as at least and on this zone, stop, and preferably in this band of position, be connected, particularly welding with diffuser by the regional area of diffuser.Provide the supporting of the cheapness of dividing plate by this measure, simultaneously with the interior pipe of by-pass line fixing effectively and guiding in preposition.
Description of drawings
In addition, next the embodiment shown in reference to the accompanying drawings explains the present invention; Shown in the accompanying drawing:
The longitdinal cross-section diagram of fluid line and heat exchanger in Fig. 1 area of diaphragm;
The view in transverse section of Fig. 2 layout shown in Figure 1;
The oblique drawing of Fig. 3 fluid line and heat exchanger.
Embodiment
Fig. 1 and 2 show heat exchanger 10 in inflow region mounting medium movement-oriented vertically and view in transverse section.Heat exchanger 10 is designed to double hose, wherein, and two ducted one of them formation by-pass lines 11, and another pipeline forms heat exchange duct 14.Heat exchange duct 14 is designed to, formed in the zone of mounting medium and heat exchange duct 14 (energy interchange being arrived mounting medium) realizes energy interchange between the heat exchange medium, and realizes the heating or the cooling of mounting medium thus.In the illustrated embodiment, heat exchanger is used for the gaseous effluent of internal-combustion engine, and mounting medium is formed by exhaust flow in this cooler, and correspondingly is supplied with the cooling water as heat exchange medium.The heat transfer of mounting medium-waste gas is to heat exchange medium-waterborne, and reduced the temperature of exhaust flow.
Via the waste gas of by-pass line 11 guiding, promptly mounting medium arrives on the respective end in heat exchanger downstream with almost constant temperature.By the part of definite shunting, i.e. the part of this shunting flows through heat exchanger in by-pass line, and another part flows through heat exchange duct, and then the mixed temperature that can control or regulate the exhaust flow in heat exchanger downstream of two shuntings.
By-pass line 11 is made of the pipe of individual tubes or two staggered guiding.Outer tube 13 surrounds the interior pipe 12 that passes outer tube hub (center of direct exhaust shunting just), and this exhaust-gas flow is passed through by-pass line.Be provided at the slit that isolates between two pipes by this measure.
Diffuser 15 is designed to the flow channel between circulation duct 25 and heat exchanger 10, and this flow channel has the negotiable cross section greater than circulation duct 25.In the zone of heat exchange duct 14, by bottom 16 restriction diffuser, pipeline 17 feeds in this zone, and these pipelines constitute the zone that can make the mounting medium circulation of heat exchange duct 14.The outer tube 13 of by-pass line 11 feeds bottom 16 in the zone of heat exchange duct outside, this bottom has corresponding breach.The interior pipe 12 of heat exchange duct passes bottom 16, and pipe extend in the diffuser 15 always in this.
For two shuntings are separated from each other, in diffuser 15, be provided with dividing plate 40, this shunting is produced by valve 20 by the exhaust flow that flows into, and this dividing plate extends to the rotatingshaft 21 in the circulation duct 25 always.Dividing plate 40 in the diffuser 15 laterally is resisted against on the end wall and preferably welds with this end wall.Have breach 42 in addition, this breach is positioned on the end face 41 that extends perpendicular to circulating direction, and this breach is the part of dividing plate.The interior pipe 12 of by-pass line 11 extend in this breach 42, thereby or realize firm being connected between dividing plate 40 and the interior pipe 11 by welding, perhaps by pipe in the breach 42 lead fixingly not only realize basic liquid seal, and realize that by moving axially of interior pipe vertical thermally equilibrated compensation is connected between dividing plate 40 and the by-pass line 11.
Fig. 3 shows the vertical pipe with angle calibration system.Guide plate 1 surrounds has the curved edges of the through hole that is complementary with interior pipe 2 cross sections along 1a.At first, guide plate 1 around the through hole edge with the end face welding of interior pipe 2.Then, this unit is pushed among the passage 3a of housing 3, wherein, what the good friction of pipe cooperated in for example realizing by means of fritter is fixing.Next, with interior pipe and/or guide plate 1 and housing welding, wherein perhaps T type section bar is enough.
Then, promote vertical pipe 6, and valve flap 8 and axle 9 may be installed by guide plate 1.After with respect to vertical member vertical pipe 6 being proofreaied and correct accurately, vertical pipe 6 welds with the housing that has the seam of extending around the end face of housing.
The special feature of each of described embodiment is not limited in this, but can wherein perhaps can go out particularly advantageous heat exchanger by specific Combination Design according to the condition free ground combination mutually of necessity.
Claims (10)
1. a heat exchanger (10), it has heat exchange duct (14) and by-pass line (11), wherein, in circulation duct (25), upstream or downstream at described heat exchanger (10) are provided with switch valve (20), described switch valve is used for separating the mounting medium that flow in described heat exchange duct (14) and the described by-pass line (11), and be connected with dividing plate (40) for ease of the separation of two shuntings, it is characterized in that, described dividing plate (40) extends to the top of described by-pass line (11) always, and design has diffuser (15) between the top of described circulation duct (25) and described by-pass line (11), and wherein said dividing plate (40) welds with described diffuser (15) at least partly.
2. heat exchanger according to claim 1 (10) is characterized in that, described dividing plate (40) is connected with described by-pass line (11).
3. heat exchanger according to claim 1 (10), it is characterized in that, described switch valve (20) is fixed on the rotatingshaft (21) in the described circulation duct (25), and wherein said dividing plate (40) extends to described rotatingshaft (21) always, and is welded on the described rotatingshaft (21).
4. heat exchanger according to claim 2 (10) is characterized in that, described by-pass line (11) is by two pipes that are crisscross arranged, and outer tube (13) and interior pipe (12) constitute, and wherein, mounting medium flows through described interior pipe (12) with the center of pipe in described.
5. heat exchanger according to claim 4 (10) is characterized in that, described interior pipe (12) extends to described dividing plate (40) always
6. heat exchanger according to claim 5 (10) is characterized in that, described dividing plate (40) is connected with described interior pipe (12), and pipe (12) can guide to keep or be fixed on the described dividing plate in described.
7. heat exchanger according to claim 6 (10), it is characterized in that, described dividing plate (40) is bent, and the vertical end wall (41) that points to circulating direction of formation, described end wall has breach (42), pipe (12) feeds in the described breach in described, and wherein said breach (42) is corresponding with the profile of described interior pipe (12).
8. heat exchanger according to claim 7 (10) is characterized in that, described interior pipe (12) can move axially and guide to remain in the described breach (42).
9. heat exchanger according to claim 7 (10) is characterized in that, described in pipe (12) in the zone of described breach (42) with the welding of the described end wall (41) of described dividing plate (40).
10. according to each described heat exchanger (10) in the claim 7 to 9, it is characterized in that described end wall (41) is resisted against on the described diffuser by the regional area of described diffuser (15) at least, and in this band of position, weld with described diffuser.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004023319.5 | 2004-05-07 | ||
| DE102004023319 | 2004-05-07 | ||
| DE102004029863.7 | 2004-06-21 | ||
| DE102004040668.5 | 2004-08-20 | ||
| DE102004040667.7 | 2004-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1950592A CN1950592A (en) | 2007-04-18 |
| CN100543280C true CN100543280C (en) | 2009-09-23 |
Family
ID=38019368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580014475 Expired - Fee Related CN100543280C (en) | 2004-05-07 | 2005-05-04 | Be used in particular for the heat exchanger of the gaseous effluent of internal-combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100543280C (en) |
| ES (1) | ES2349013T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011111471A1 (en) * | 2011-08-23 | 2013-02-28 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Exhaust system of an internal combustion engine with means for heat recovery, and method for operating the same |
-
2005
- 2005-05-04 ES ES05751937T patent/ES2349013T3/en active Active
- 2005-05-04 CN CN 200580014475 patent/CN100543280C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1950592A (en) | 2007-04-18 |
| ES2349013T3 (en) | 2010-12-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20130504 |