CN209398516U - EGR cooling device - Google Patents
EGR cooling device Download PDFInfo
- Publication number
- CN209398516U CN209398516U CN201920067080.0U CN201920067080U CN209398516U CN 209398516 U CN209398516 U CN 209398516U CN 201920067080 U CN201920067080 U CN 201920067080U CN 209398516 U CN209398516 U CN 209398516U
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- CN
- China
- Prior art keywords
- coolant flow
- groups
- flow channels
- cooling device
- radiator
- 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.)
- Expired - Fee Related
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to EGR cooling fields, disclose a kind of EGR cooling device, the EGR cooling device includes radiator and three groups of coolant flow channels being arranged in the radiator, the waste gas outlet end of the radiator is arranged in the inlet of three groups of coolant flow channels, the exhaust gas inlet end of the radiator is arranged in the liquid outlet of three groups of coolant flow channels, and the caliber of three groups of coolant flow channels is different, coolant flow channel close to waste gas outlet end surround arrangement perpendicular to exhaust flow path diameter, and the coolant flow channel close to exhaust gas inlet end is parallel to exhaust flow path and directly goes to multiple bank cloth.Cooling efficiency is adjusted in EGR cooling device in the design, meets the cooling requirement under different engine operating conditions, and cooling effect is preferable.
Description
Technical field
The utility model relates to EGR cooling fields, and in particular to a kind of adjustable EGR cooling device of cooling performance.
Background technique
As the improvement of people's living standards, the problem of vehicle exhaust emission, is receive more and more attention.EGR, i.e.,
Gas recirculation system, engine after combustion isolates a part that gas is discharged and importing air inlet side fires it once again
The technology of burning.Main purpose is to reduce nitrogen oxides (NOx) in discharge gas and fuel can be improved when sharing sub-load disappear
Consumption rate.
The exhaust gas typical temperature of engine discharge is higher, however the lower NOx inhibiting effect to engine of the temperature of exhaust gas
It is better, therefore cool down equipped with cooling device to exhaust gas in EGR.Cooler for recycled exhaust gas used at present, coolant flow channel design are fixed
Change, cooling effect can not be adjusted, do not adapt to different engine operating loads, to be unable to reach optimal cooling temperature.
Utility model content
The purpose of this utility model is to overcome existing EGR cooling devices cannot be real-time with the variation of the operating condition of engine
The problem of adjusting cooling performance, provides a kind of adjustable EGR cooling device of cooling performance.
To achieve the goals above, the embodiment of the utility model is as follows:
A kind of EGR cooling device is provided, which includes radiator and be arranged in the radiator three groups
The waste gas outlet end of the radiator, the liquid out of three groups of coolant flow channels is arranged in coolant flow channel, the inlet of three groups of coolant flow channels
The exhaust gas inlet end of the radiator is arranged in mouth, and the caliber of three groups of coolant flow channels is different, close to the cold of waste gas outlet end
But perpendicular to exhaust flow path diameter around arrangement, the coolant flow channel close to exhaust gas inlet end is parallel to exhaust flow path and directly goes to runner
Multiple bank cloth.
Preferably, three groups of coolant flow channels are respectively copper pipe.
Preferably, the ratio of the caliber between three groups of coolant flow channels from small to large is 1:(1.05-1.5): (1.2-2),
Different calibers corresponds to different cooling effects, can select the coolant flow channel and combinations thereof that need to be opened according to engine real-time working condition
Mode.
Preferably, the shape of three groups of coolant flow channels is respectively corrugated cylinder type, for increasing cooling efficiency.
Preferably, the EGR cooling device further includes valve positioner, for receiving engine speed and torque data,
And the opening and closing and respective aperture of three groups of coolant flow channels are controlled according to the engine speed and torque data.
Compared with prior art, cooling system for recycled exhaust gas provided by the utility model can adjust cooling efficiency in real time.Pass through
Valve positioner receives the real-time working condition data of engine, controls the opening and closing and aperture situation of each cooling liquid inlet valve, thus
Realize the controllable adjustment of cooling effect.While special coolant flow channel arrangement mode is used, first: cooling liquid inlet is arranged
The side at waste gas outlet increases cooling effect using the exhaust gas of the minimum coolant liquid coolant outlet of temperature, secondly: close
Perpendicular to exhaust flow path diameter around arrangement, increase coolant flow channel makes the coolant flow channel of waste gas outlet side with exhaust gas contact area
The cooling efficiency in the region reaches best；Coolant flow channel close to waste gas outlet side is parallel to exhaust flow path and directly goes to multiple bank
The cooling effect of cloth, the region is evenly distributed, finally, the construction of coolant flow channel is corrugated cylinder runner, further increases cooling
Efficiency, the construction be combined with each other, and reach more preferably cooling effect.
Detailed description of the invention
Fig. 1 is EGR cooling device structural schematic diagram in the utility model；
Fig. 2 is the arrangement mode schematic diagram of coolant flow channel in EGR cooling device in the utility model；
Fig. 3 is coolant flow channel schematic shapes in EGR cooling device in the utility model.
Description of symbols
1 radiator, 2 exhaust gas inlet
3 waste gas outlet, 4 valve positioner
5 coolant flow channel, 51 cooling liquid inlet
52 cooling liquid outlets
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
The utility model provides a kind of EGR cooling device, and specific configuration is as illustrated in fig. 1 and 2, the EGR cooling device packet
The three groups of coolant flow channels 5 for including radiator 1 and being arranged in the radiator, the inlet 51 of three groups of coolant flow channels are positioned close to
The side at the waste gas outlet end 3 of the radiator, the liquid outlet 52 of three groups of coolant flow channels are positioned close to the useless of the radiator
The side of gas input end 2, and the caliber of three groups of coolant flow channels 5 is different, wherein every group of coolant flow channel uses phase in radiator
Same arrangement mode, specifically as indicated with 2, the coolant flow channel close to waste gas outlet end 3 surround arrangement perpendicular to exhaust flow path diameter,
Coolant flow channel close to exhaust gas inlet end 2 is parallel to exhaust flow path and directly goes to multiple bank cloth.
In a kind of specific embodiment of the utility model, three groups of coolant flow channels 5 are respectively copper pipe.
In more preferably embodiment, the ratio of caliber from small to large between three groups of coolant flow channels is 1:(1.05-
1.5): (1.2-2), more preferably 1:(1.1-1.3): (1.4-8).
In more preferably embodiment, the shape of three groups of coolant flow channels is respectively corrugated cylinder type (such as Fig. 3 institute
Show).The contact surface device of exhaust gas and coolant flow channel can be increased using this kind of structure, it is interior in a limited space to increase cooling effect
Rate.
In the present invention, the EGR cooling device can also include valve positioner 4, turn for receiving engine
Speed and torque data, and according to the engine speed and torque data control three groups of coolant flow channels opening and closing and respectively
Aperture.
The embodiment being set forth below such as does the shape structure for each component being related to specific embodiment of the present utility model
It makes, the mutual alignment of each component and connection relationship, the effect of each section and working principle etc. are described in further detail.
Embodiment
As shown in Figure 1, a kind of adjustable EGR cooling device provided by the utility model, which includes heat dissipation
Device 1 and three groups of coolant flow channels 5 being arranged in the radiator, the inlet 51 of three groups of coolant flow channels are positioned close to described dissipate
The side at the waste gas outlet end 3 of hot device, the liquid outlet 52 of three groups of coolant flow channels are positioned close to the exhaust gas inlet of the radiator
The side at end 2.
Further, three groups of coolant flow channels are all made of identical arrangement mode in radiator, close to waste gas outlet side
Coolant flow channel perpendicular to exhaust flow path diameter around arrangement, so that the cooling efficiency in the region is reached best；Close to waste gas outlet
The coolant flow channel of side is parallel to exhaust flow path and directly goes to multiple bank cloth, and the cooling effect in the region is evenly distributed, specifically such as Fig. 2 institute
Show.
Wherein, the caliber of three groups of coolant flow channels 5 is different, and the caliber of three groups of runners is followed successively by respectively from small to large
10mm, 12mm and 14mm；Three groups of coolant flow channels are that copper pipe is constituted, and respective pipeline is corrugated cylinder type runner, specifically
As shown in figure 3, the contact surface device of exhaust gas and coolant flow channel is increased using this kind of structure, it is interior in a limited space to increase cooling
Efficiency.
In addition, further including a valve positioner 4, for receiving engine speed and torque data, and according to the hair
Motivation revolving speed and torque data control the opening and closing and respective aperture of three groups of coolant flow channels.
In use, valve positioner receives engine operating condition, quickly provides a kind of each cooling liquid inlet valve
Opening and closing situation and execute.Specifically, when the engine operates with a low speed, exhaust gas temperature is lower is not required to be cooled down, at this time 3 it is cold
But liquid imported valve is in closed state, increases with engine workload, will successively increase the unlatching of coolant valve, example
10mm coolant flow channel, unlatching 10mm+14mm coolant flow channel or 3 coolant flow channels are such as opened to be all turned on.According to permutation and combination
8 kinds of combination opening and closing modes are shared from all closing to being all turned on one, in combination with different valve openings, are realized high-precision
Cooling performance is adjusted, to cope with the cooling requirement under a variety of different engine operating conditions.
Preferred embodiments of the present invention are described in detail above, still, the utility model is not limited to this.At this
In the range of the technology design of utility model, a variety of simple variants can be carried out to the technical solution of the utility model, including each
Technical characteristic is combined with any other suitable method, these simple variants and combination equally should be considered as the utility model
Disclosure of that belongs to the protection scope of the utility model.
Claims (5)
1. a kind of EGR cooling device, which is characterized in that the EGR cooling device includes radiator (1) and is arranged in the radiator
In three groups of coolant flow channels (5), the waste gas outlet end (3) of the radiator is arranged in the inlet (51) of three groups of coolant flow channels,
The exhaust gas inlet end (2) of the radiator, and the pipe of three groups of coolant flow channels (5) is arranged in the liquid outlet (52) of three groups of coolant flow channels
Diameter is different, and the coolant flow channel close to waste gas outlet end (3) surround arrangement perpendicular to exhaust flow path diameter, close to exhaust gas inlet end
(2) coolant flow channel is parallel to exhaust flow path and directly goes to multiple bank cloth.
2. EGR cooling device according to claim 1, which is characterized in that three groups of coolant flow channels (5) are respectively copper pipe.
3. EGR cooling device according to claim 1, which is characterized in that caliber between three groups of coolant flow channels is from small
It is 1:(1.05-1.5 to big ratio): (1.2-2).
4. EGR cooling device described in any one of -3 according to claim 1, which is characterized in that three groups of coolant flow channels
Shape be respectively corrugated cylinder type.
5. EGR cooling device described in any one of -3 according to claim 1, which is characterized in that the EGR cooling device is also
Including valve positioner (4), for receiving engine speed and torque data, and according to the engine speed and torque data
Control the opening and closing and respective aperture of three groups of coolant flow channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920067080.0U CN209398516U (en) | 2019-01-15 | 2019-01-15 | EGR cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920067080.0U CN209398516U (en) | 2019-01-15 | 2019-01-15 | EGR cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398516U true CN209398516U (en) | 2019-09-17 |
Family
ID=67898551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920067080.0U Expired - Fee Related CN209398516U (en) | 2019-01-15 | 2019-01-15 | EGR cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398516U (en) |
-
2019
- 2019-01-15 CN CN201920067080.0U patent/CN209398516U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20210115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |