CN207647643U - Egr valve and vehicle - Google Patents
Egr valve and vehicle Download PDFInfo
- Publication number
- CN207647643U CN207647643U CN201721753656.6U CN201721753656U CN207647643U CN 207647643 U CN207647643 U CN 207647643U CN 201721753656 U CN201721753656 U CN 201721753656U CN 207647643 U CN207647643 U CN 207647643U
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- Prior art keywords
- valve
- cooling water
- water channel
- valve rod
- coolant liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 65
- 239000002826 coolant Substances 0.000 claims abstract description 58
- 239000000498 cooling water Substances 0.000 claims description 81
- 238000001816 cooling Methods 0.000 claims description 26
- 239000007789 gas Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Present disclose provides a kind of EGR valve and vehicles, wherein, the EGR valve includes valve seat (4) and the valve rod (6) on valve seat (4), and the coolant liquid guiding device (8) around valve rod (6) is provided in the valve seat (4).The coolant liquid guiding device (8) being arranged in the disclosure is arranged around valve rod (6); the heat exchange of its internal coolant can be to being fully cooled around valve rod (6); effectively reduce the temperature of valve rod (6); to reduce EGR valve bulk temperature; play heat-blocking action simultaneously; protection motor works normally at low temperatures, to ensure that EGR valve works normally.
Description
Technical field
This disclosure relates to automobile technical field, and in particular to a kind of EGR valve and vehicle.
Background technology
The gas recirculation system (EGR) of automobile engine, main function are to draw the exhaust gas after the burning at exhaust pipe
Air inlet pipe is returned to, combustion chamber is entered back into after being sufficiently mixed with fresh air and participates in burning, ignition temperature can be reduced, is controlled
NOx discharge simultaneously improves oil consumption.Egr system is one of the important technique measure for realizing the above discharge standards of diesel engine Europe IV.It is logical
Cross under different operating modes, control the position of EGR valve to adjust different EGR rates, can reduce to the maximum extent nitrogen oxygen discharge and
Improve engine power.EGR valve arrangement is divided into cold end arrangement (exhaust gas is after supercooling) and hot junction arranges that (exhaust gas is without supercooling
But) two kinds.By market validation, there are problems for cold end arrangement EGR valve, existing such as the problems such as burn into clamping stagnation, blocking
The electric EGR valve of hot junction arrangement is used in more and more diesel engines.
As diesel engine continually strengthens upgrading, delivery temperature is higher and higher, reaches as high as 820 DEG C, existing cooling body
So that EGR valve seat is more inadequate to the cooling effect of delivery temperature, when high-temp waste gas passes through EGR valve, not only make EGR valve valve rod and
Conduit high temperature deformation causes valve rod clamping stagnation, while making EGR valve electronic device such as sensor, motor failure.
Utility model content
First purpose of the disclosure is to provide a kind of EGR valve, has coolant liquid guiding device inside the EGR valve, with solution
The certainly prior art problem insufficient to EGR valve cooling.
Second purpose of the disclosure is to provide a kind of vehicle, which includes the EGR valve that the disclosure provides.
In order to realize above-mentioned task, present disclose provides a kind of EGR valve, including valve seat and the valve rod on valve seat,
The coolant liquid guiding device around valve rod is provided in the valve seat.
Preferably, the valve rod is extend into inside valve seat, and the coolant liquid guiding device includes being formed in the valve
Cooling water channel in seat, the cooling water channel are arranged around the valve rod and have inlet and liquid outlet；The valve rod is worn
Cross valve seat setting.
Further, the cooling water channel includes the first cooling water channel and two the second cooling water channels, wherein two
The both ends of equal first cooling water channel in one end of second cooling water channel are respectively communicated with, and the other end connects with engine-cooling system respectively
It connects, constitutes coolant liquid circulation loop.
Optionally, second cooling water channel is vertical with the first cooling water channel, the first cooling water channel, the second cooling water channel
Axial direction it is axially vertical with valve rod.
Preferably, two second cooling water channels are located at the both sides of the valve rod.
Preferably, the end of two second cooling water channels, which is respectively provided with, stretches out the first interface of valve seat, second connects
Mouth is to be respectively formed the inlet and liquid outlet.
Further, first cooling water channel, the second cooling water channel internal diameter be 8~10mm.
Further, the top of the valve seat is equipped with motor, and conduit, the valve handle activity formula are provided in valve seat
In the catheter, the coolant liquid guiding device is around the conduit for assembly；The output shaft of the motor passes through crank mechanism
It is connect with valve rod upper end, valve rod is made to be moved back and forth in the conduit；The valve seat lower part is provided with airtube, valve rod
Lower end is provided with the valve block for adjusting air intake duct aperture.
Optionally, it is provided on the valve seat for constituting coolant liquid circulation loop with the coolant liquid guiding device
Catheter.
According to the second aspect of the disclosure, a kind of vehicle is also provided, the EGR of disclosure offer is installed on the vehicle
Valve.
Through the above technical solutions, the coolant liquid guiding device being arranged in the valve seat of EGR valve in the disclosure is arranged in valve
Around bar, internal coolant heat exchange can effectively reduce the temperature of valve rod, to reduce to being fully cooled around valve rod
EGR valve bulk temperature, while playing heat-blocking action.The vehicle that the disclosure further provides for has the EGR valve that the disclosure provides, because
This equally has the advantages that above-mentioned.
Description of the drawings
Attached drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the overall structure diagram of the EGR valve of the disclosure (valve seat part is axial section view)；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the structural decomposition diagram of the EGR valve of the disclosure；
Reference sign
1 motor, 2 catheters, 3 conduits, 4 valve seats, 5 carbon brush, 6 valve rods, 7 dust covers, 8 coolant liquid guiding devices, 8-1 first
Cooling water channel, the second cooling water channels of 8-2,8-3 second interfaces, 8-4 first interfaces, 9 airtubes, 10 valve blocks.
Specific implementation mode
The specific implementation mode of the disclosure is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is typically referred to corresponding
It is defined on the basis of the drawing of attached drawing, " inside and outside " refers to the inner and outer of corresponding component profile.
As shown in Figure 1 to Figure 3, present disclose provides a kind of EGR valve, including valve seat 4 and the valve rod 6 on valve seat 4,
It is characterized in that, being provided with the coolant liquid guiding device 8 around valve rod 6 in the valve seat 4.In the disclosure, in order to EGR valve
Cooled down, use in the EGR valve important component valve rod 6 be arranged the mode of coolant liquid guiding device 8 with to entire EGR valve into
Row cooling, wherein circulating coolant liquid is internally provided in coolant liquid guiding device 8, by coolant liquid guiding device 8
Coolant liquid exchange heat to realize the cooling to EGR valve；Specifically, when coolant liquid flows through coolant liquid guiding device 8, temperature is lower
Coolant liquid exchanges heat with 6 surrounding of valve rod, takes away the heat around valve rod 6, due to using by the way of setting so that valve rod
Heat around 6 can fully be absorbed and as coolant liquid is taken away, effectively cooling so as to be carried out to EGR valve, avoid valve rod 6 by
There is the case where deformation, clamping stagnation in high temperature.As shown in Figure 1,3, it is the structural schematic diagram of the EGR valve described in the disclosure, the disclosure
EGR valve in, valve rod 6 be mounted on valve seat 4 on, specifically, valve rod 6 partially passes through in valve seat 4, and the coolant liquid water conservancy diversion
Device 8 is located inside valve seat 4, around valve rod 6.
Optionally, the valve rod 6 is extend into inside valve seat 4, and the coolant liquid guiding device 8 is described including being formed in
Cooling water channel in valve seat 6, the cooling water channel are arranged around the valve rod 6 and have inlet and liquid outlet.Described is cold
But water channel can be the channel being opened in EGR valve, and the pipeline for water conservancy diversion coolant liquid can also be arranged in the channel；
It is required for the shape of cooling water channel is not fixed, such as the cross section of cooling water channel can be round, rectangular or other shapes；
In addition, cooling water channel can be fixed outer diameter formula structure, can also be reducing type structure, the shape around valve rod 6 can be C
The various structures being looped around around valve rod 6 such as shape, circle, U-shaped, these circulating type setting structures can be fully in EGR valves
The heat being easy around the valve rod 6 of heating is fully absorbed, to enable EGR valve effective temperature-reducing.The cooling water stage property
There are inlet and liquid outlet, inlet, liquid outlet to be connect with engine-cooling system, is drawn from engine-cooling system cold
But liquid is entered from inlet in the cooling water channel, and final coolant liquid flow back into engine-cooling system again from liquid outlet, with
Realizing reduces the purpose of EGR valve temperature by coolant liquid cycle.
Preferably, as shown in Fig. 2, in a specific implementation mode of the disclosure, the cooling water channel includes first cold
But water channel 8-1 and two the second cooling water channel 8-2, wherein one end of two the second cooling water channel 8-2 and the first cooling water channel
The both ends of 8-1 are respectively communicated with, and the other end is connect with engine-cooling system respectively, constitute coolant liquid circulation loop.Described
The effect of one cooling water channel 8-1 is to carry out water conservancy diversion to coolant liquid, while for connecting the second cooling water channel 8-2, constituting coolant liquid
Circulating path in valve seat 4.Coolant liquid in cooling system enters the first cooling water by a second cooling water channel 8-2
In road 8-1, EGR valve then is flowed out from another second cooling water channel 8-2 again, so that coolant liquid is flowed through around valve rod 6,
To be fully cooled to valve rod periphery, coolant liquid circulation loop is constituted；Second cooling water channel 8-2 is used for and engine cool system
System connection, to import and export coolant liquid, therefore the second cooling water channel 8-2 is arranged two；Second cooling water channel 8-2 can be with
The end of one cooling water channel 8-1 is directly connected to, and can also be connected to the side of the first ends cooling water channel 8-1；When being connected to
When the side of one ends cooling water channel 8-1, the both ends of the first cooling water channel 8-1 need to close.Such laying mode is in structure
Coolant liquid is increased in the case of complexity is lower flows through path, is fully cooled with realizing.
Preferably, two second cooling water channel 8-2 are located at the both sides of the valve rod 6, two such second
Cooling water channel 8-2 is by, jointly around the valve rod 6, this laying mode can make valve rod 6 have reason with the first cooling water channel 8-1
The cooling effect thought.
Optionally, in the specific implementation mode of the disclosure, engine-cooling system refers to the engine cool of vehicle itself
System, the introducing portion coolant liquid from the cooling system of vehicle motor of coolant liquid guiding device 8 are recycled, in this way may not be used
With the additional cooling system of increase.
Optionally, the second cooling water channel 8-2 is vertical with the first cooling water channel 8-1, the first cooling water channel 8-1,
The axial direction of two cooling water channel 8-2 is axially vertical with valve rod 6；Such layout stracture can be in order to the second cooling water channel 8-1
With the connection of cooling system, facility is provided for structure processing.
Preferably, the second cooling water channel 8-2 is arranged two, the end of described two the second cooling water channel 8-2
It is respectively provided with and stretches out first interface 8-4, the second interface 8-3 of valve seat 4 to be respectively formed the inlet and liquid outlet.It is cooling
Liquid is flowed into from first interface 8-4 in cooling water channel, flows out cooling water channel from second interface 8-3.As shown in Fig. 2, first interface
The effect of 8-4, second interface 8-3 are to be used for and cooling system is attached, and first interface 8-4, the internal diameter of second interface 8-3 are big
In the internal diameter of the first cooling water channel 8-1, the second cooling water channel 8-2, so that first interface 8-4, second interface 8-3 and cooling system
System connection is even closer, ensures that coolant liquid will not leak.
Preferably, in the specific implementation mode of the disclosure, the first cooling water channel 8-1, the second cooling water channel 8-2
Internal diameter is 8~10mm；The aperture range of choice, it is cold to ensure enough coolant rates, while also having taken into account each structure in EGR valve
Layout density.
Specifically, in a specific implementation mode of the disclosure, the concrete structure of EGR valve is as shown in Figure 1, Figure 3, described
The top of valve seat 4 is equipped with motor 1, and motor 1, which is bolted, to be fastened on valve seat 4；Conduit 3, conduit are provided in valve seat 4
3 by being interference fitted in the through-hole being pressed into valve seat 4；The valve rod 6 is movable to be assemblied in conduit 3, valve rod 6 and conduit
It is clearance fit between 3, ensures that valve rod 6 can move up and down in conduit 3；The coolant liquid guiding device 8 is led around described
Pipe 3；The output shaft of the motor 1 is connect by crank mechanism with 6 upper end of valve rod, keeps valve rod 6 reciprocal in the conduit 3
Movement；4 lower part of valve seat is provided with airtube 9, and the lower end of valve rod 6 is provided with the valve block for adjusting 9 aperture of airtube
10, valve block 10 is conical surface disk；Exhaust gas after burning in the exhaust pipe of automobile engine passes through the airtube 9, valve block 10
Airtube 9 is blocked or opened under the drive of valve rod 6, to realize the control to exhaust gas flow.
Optionally, 3 lower end of conduit is provided with carbon brush 5, is clearance fit between carbon brush 5 and valve seat 4, passes through conduit
3 are fixed.Carbon brush 5 can remove the carbon distribution on valve rod 6, avoid the problem that clamping stagnation occurs in valve rod 6.In addition, being set at 4 top of valve seat
It is equipped with dustproof cover 7, the portion envelops that dustproof cover 7 connects motor 1 and valve rod 6 wherein, play the role of dust seal.
In the specific implementation mode of the disclosure, it is provided with and is used for and 8 structure of coolant liquid guiding device on the valve seat 4
At the catheter 2 of coolant liquid circulation loop.The particular number of catheter 2 and the first interface 8-4 of coolant liquid guiding device 8, the
The quantity of two interface 8-3 is consistent, is separately connected first interface 8-4, the second interface 8-3 of the coolant liquid guiding device 8.
Specifically, in above-mentioned EGR valve structure, valve rod 6 is assemblied in conduit 3,8 ring of coolant liquid guiding device
The outside of the conduit 3 is wound on to realize surrounding to valve rod 6.Preferably, the installation position of the coolant liquid guiding device 8
It is uniform, adequately cooling to be realized to valve rod 6,3 periphery of conduit on the outside of the middle part of conduit 3.
For example, in the specific implementation mode of the disclosure, as shown in Fig. 2, first interface 8-4, second interface 8-3 are respectively arranged
One, accordingly, a catheter 2 is separately connected on first interface 8-4, second interface 8-3.One end of catheter 2 and institute
The first interface 8-4 that states, second interface 8-3 connections, the other end are connect with engine-cooling system, and coolant liquid is from engine cool
It flows out in system, is entered in cooling water channel from the catheter 2 being connect with first interface 8-4, then connected from second interface 8-3
The catheter 2 connect is flow back into engine-cooling system again, to realize the cycle of coolant liquid.
Preferably, in specific setting, the spacing of the first cooling water channel 8-1, the second cooling water channel 8-2 and conduit 3 is 3~
5mm can ensure that the first cooling water channel 8-1, the second cooling water channel 8-2 will not be revealed, and can be maximally reduced in this way
Heat exchange distance increases cooling capacity.Coolant flow direction does not limit in first cooling water channel 8-1, the second cooling water channel 8-2
System.
The operation principle for the EGR valve that the disclosure provides is as follows：
1 output shaft of motor is crank mechanism, converts circular motion to the linear motion of valve rod 6.When normal work, motor
1 axially moves up and down according to signal driving stem 6 in conduit 3, realizes the switching function of EGR valve, exhaust gas is made to circulate or close.
When valve rod 6 declines unlatching, the high-temp waste gas (800 DEG C of highest) of circulation can heat valve rod 6, conduit 3, valve seat 4, valve rod 6, conduit
3 under high temperature action dilatancy, the gap between valve rod 6 and conduit 3 becomes smaller, or even becomes gapless, causes valve rod 6 can not
It is moved in conduit 3, so that EGR valve clamping stagnation, disabler.
The disclosure is provided with coolant liquid guiding device 8 in valve seat 4, and the coolant liquid in cooling water channel goes out from engine cylinder cover
Water hole position introduces, and water inflow of the engine pipe is flowed out to after cooling valve body.Conduit 3, valve rod 6 transfer heat to valve by heat exchange
On seat 4, the coolant liquid in cooling water channel cools down valve seat 4, final to realize the temperature for reducing conduit 3, valve rod 6, while valve
High-temperature region is isolated with motor 1 for the position that cooling water channel is laid in seat 4, and protection motor 1 works normally at low temperatures, to
Ensure EGR valve normal work.
According to the second aspect of the disclosure, a kind of vehicle is provided, the EGR valve of disclosure offer is installed in the vehicle.
The preferred embodiment of the disclosure is described in detail above in association with attached drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of EGR valve, including valve seat (4) and the valve rod (6) on valve seat (4), which is characterized in that the valve seat
(4) the coolant liquid guiding device (8) around valve rod (6) is provided in.
2. EGR valve according to claim 1, which is characterized in that the valve rod (6) extend into valve seat (4) inside, described
Coolant liquid guiding device (8) include being formed in cooling water channel in the valve seat (4), the cooling water channel is around the valve rod
(6) it is arranged and there is inlet and liquid outlet.
3. EGR valve according to claim 2, which is characterized in that the cooling water channel includes the first cooling water channel (8-1)
And two the second cooling water channels (8-2), wherein one end of two the second cooling water channels (8-2) and the first cooling water channel (8-1)
Both ends be respectively communicated with, the other end is connect with engine-cooling system respectively, constitute coolant liquid circulation loop.
4. EGR valve according to claim 3, which is characterized in that second cooling water channel (8-2) and the first cooling water
Vertically, the first cooling water channel (8-1), the axial direction of the second cooling water channel (8-2) are axially vertical with valve rod (6) in road (8-1).
5. EGR valve according to claim 3, which is characterized in that two second cooling water channels (8-2) are located at
The both sides of the valve rod (6).
6. EGR valve according to claim 3, which is characterized in that the end part of two second cooling water channels (8-2)
There is not stretch out first interface (8-4), the second interface (8-3) of valve seat (4) to be respectively formed the inlet and liquid outlet.
7. EGR valve according to claim 3, which is characterized in that first cooling water channel (8-1), the second cooling water
The internal diameter in road (8-2) is 8~10mm.
8. EGR valve according to claim 1, which is characterized in that the top of the valve seat (4) is equipped with motor (1), valve
It is provided with conduit (3) in seat (4), the valve rod (6) is movable to be assemblied in conduit (3), the coolant liquid guiding device
(8) around the conduit (3)；The output shaft of the motor (1) is connect by crank mechanism with valve rod (6) upper end, and valve rod is made
(6) it is moved back and forth in the conduit (3)；Described valve seat (4) lower part is provided with airtube (9), and the lower end of valve rod (6) is set
It is equipped with the valve block (10) for adjusting airtube (9) aperture.
9. EGR valve according to claim 1, which is characterized in that be provided with and be used for and the cooling on the valve seat (4)
Liquid guiding device (8) constitutes the catheter (2) of coolant liquid circulation loop.
10. a kind of vehicle, which is characterized in that include the EGR valve according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753656.6U CN207647643U (en) | 2017-12-14 | 2017-12-14 | Egr valve and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721753656.6U CN207647643U (en) | 2017-12-14 | 2017-12-14 | Egr valve and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647643U true CN207647643U (en) | 2018-07-24 |
Family
ID=62880558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721753656.6U Active CN207647643U (en) | 2017-12-14 | 2017-12-14 | Egr valve and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630415A (en) * | 2019-10-08 | 2019-12-31 | 无锡同益汽车动力技术有限公司 | EGR valve shield structure |
-
2017
- 2017-12-14 CN CN201721753656.6U patent/CN207647643U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630415A (en) * | 2019-10-08 | 2019-12-31 | 无锡同益汽车动力技术有限公司 | EGR valve shield structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 102206 Beijing Changping District Shahe town Shayang Road, Niu Niu Wan Village North Patentee after: BEIQI FOTON MOTOR Co.,Ltd. Address before: 102206, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhucheng Futian International Trade Co.,Ltd. Assignor: BEIQI FOTON MOTOR Co.,Ltd. Contract record no.: X2023980043791 Denomination of utility model: EGR valve and vehicle Granted publication date: 20180724 License type: Common License Record date: 20231018 |
|
| EE01 | Entry into force of recordation of patent licensing contract |