CN206600215U - A kind of EGR valve seat - Google Patents
A kind of EGR valve seat Download PDFInfo
- Publication number
- CN206600215U CN206600215U CN201720187932.0U CN201720187932U CN206600215U CN 206600215 U CN206600215 U CN 206600215U CN 201720187932 U CN201720187932 U CN 201720187932U CN 206600215 U CN206600215 U CN 206600215U
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- CN
- China
- Prior art keywords
- flange
- egr valve
- valve seat
- cooling end
- water channel
- 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 provides a kind of EGR valve seat, including cooling end, first flange and second flange, the two ends of cooling end are fixedly connected with first flange and second flange respectively, and cooling end, first flange and second flange are provided with the air inlet of insertion, cooling end outer wall, which is provided with gas outlet, water inlet and delivery port, cooling end, is provided with water channel, water inlet, delivery port are connected with water channel, gas outlet is connected with air inlet, and first flange is connected with EGR valve, and second flange is connected with exhaust manifold.By the way of EGR valve seat of the present utility model and EGR valve can be arranged using hot junction; avoid causing the waste gas of coking to be attached in EGR valve the problem of causing EGR valve clamping stagnation because cold end is arranged; in addition; due to being provided with water channel in this EGR valve seat; with cooling and heat-insulated function; EGR valve and other electronic components on EGR valve seat can more preferably be protected; EGR valve need not use high-temperature material; common EGR valve, which is arranged on EGR valve of the present utility model seat, can just meet job requirement, reduce cost.
Description
Technical field
The utility model is related to automobile engine attachment technique field, and in particular to a kind of EGR valve seat.
Background technology
Diesel engine is given up partial recirculation by cooling down egr system (Exhaust Gas Recirculation System)
Gas is introduced back into cylinder and participates in burning, reaches the purpose of reduction NOx emission.
EGR valve is that an installation is used for controlling to feed back to the electromechanics one of the amount of exhaust gas recirculation of gas handling system on a diesel engine
Body product.EGR valve is to cool down part very important, crucial in egr system.The arrangement master of diesel engines at present EGR valve
There are two states：Cold end is arranged and hot junction arrangement.Cold end arrangement EGR valve arrangement after the cooler, hot junction arrangement EGR
Valve is arranged between blast pipe and cooler for recycled exhaust gas.
Both arrangements all have deficiency：The EGR valve of cold end arrangement is arranged in after cooler, EGT
Reduction is a lot, so the temperature that EGR valve is subjected to is relatively low, and coking phenomenon, jelly occur when temperature is too low for EGR exhaust
The problems such as easily causing EGR valve clamping stagnation is attached in EGR valve；The problem of although hot junction arrangement avoids waste gas coking, but
It is that the temperature test that EGR valve is subjected to is very big, if taking no action to that the ablation of EGR valve can be caused, to avoid ablation, hot junction cloth
Put and generally use resistant to elevated temperatures EGR valve, but this valve is due to using exotic material and component, cost is generally higher.
Utility model content
The utility model provides a kind of EGR valve seat, is deposited with solving the EGR valve that cold end arrangement and hot junction are arranged in the prior art
EGR valve clamping stagnation and it is with high costs the problem of, EGR valve of the present utility model seat carries out cooling and heat-insulated by increasing water channel,
Common EGR valve is just met need of work on the valve seat, reduce cost.
To achieve the above object, the utility model provides following technical scheme：
A kind of EGR valve seat, including cooling end, first flange and second flange；The two ends of the cooling end respectively with it is described
First flange is fixedly connected with the second flange, and the cooling end, the first flange and the second flange are provided with and passed through
Logical air inlet；The cooling end outer wall, which is provided with gas outlet, water inlet and delivery port, the cooling end, is provided with water channel, described
Water inlet, the delivery port are connected with the water channel, and the gas outlet is connected with the air inlet；The first flange and EGR
Valve is connected, and the second flange is connected with exhaust manifold.
Preferably, symmetrical structure centered on the first flange and the second flange, and the first flange and described
The cross section of second flange is triangle.
Preferably, 3 mounting holes, 3 mounting hole difference are equipped with the first flange and the second flange
On 3 angles of the first flange and the second flange.
Preferably, it is equipped with fillet on 3 angles of the first flange and the second flange.
Preferably, the axis of the air inlet is overlapped with the axis of the first flange and the second flange.
Preferably, the water channel inwall is provided with raised cooling fins.
Preferably, the water inlet is identical with the bore of the delivery port, and the mouth of the water inlet and the delivery port
Footpath is more than the bore of the water channel.
Preferably, the cooling end, the first flange and the second flange are casting integrated molding structure.
The beneficial effects of the utility model are：
EGR valve seat of the present utility model, including cooling end, first flange and second flange, wherein first flange and EGR valve
Connection, second flange is connected with exhaust manifold, and first flange and second flange are fixedly connected with the two ends of cooling end respectively, and cold
But portion, first flange and second flange are provided with the air inlet of insertion, and cooling end outer wall is provided with gas outlet, water inlet and delivery port,
Water channel is provided with cooling end, water inlet, delivery port are connected with water channel, and gas outlet is connected with air inlet.EGR valve of the present utility model
By the way of seat and EGR valve can be arranged using hot junction, it is to avoid cause the waste gas of coking to be attached in EGR valve because of cold end arrangement and lead
The problem of causing EGR valve clamping stagnation, further, since water channel is provided with this EGR valve seat, with cooling and heat-insulated function, so that more preferably
Protection is arranged on EGR valve and other electronic components on EGR valve seat, and common EGR valve is arranged on EGR of the present utility model
Job requirement can be just met on valve seat, without resistant to elevated temperatures EGR valve must be used, cost is greatly reduced.
In addition, EGR valve seat of the present utility model is additionally provided with the radiating fin of convex in water channel, cooling water can be increased
With the contact area of water channel inwall, rate of heat exchange is improved, preferably the temperature of reduction waste gas.
Brief description of the drawings
The front view for the EGR valve seat that Fig. 1 provides for the utility model embodiment；
The upward view for the EGR valve seat that Fig. 2 provides for the utility model embodiment；
The A-A sectional views for the EGR valve seat that Fig. 3 provides for the utility model embodiment；
The B-B sectional views for the EGR valve seat that Fig. 4 provides for the utility model embodiment；
The partial view for the EGR valve seat that Fig. 5 provides for the utility model embodiment.
Description of reference numerals：
1- cooling ends, 2- first flanges, 3- second flanges, 4- air inlets, 5- gas outlets, 6- water inlets, 7- delivery ports, 8-
Water channel, 9- mounting holes, 10- fillets, 11- cooling fins.
Embodiment
In order that those skilled in the art is better understood when the technical solution of the utility model, below in conjunction with accompanying drawing
The utility model is further detailed.
As shown in Figure 1, Figure 2 and Figure 4, the utility model embodiment provides a kind of EGR valve seat, including cooling end 1, the first method
Orchid 2 and second flange 3, the two ends of the cooling end 1 are fixedly connected with the first flange 2 and the second flange 3 respectively, and
The cooling end 1, the first flange 2 and the second flange 3 are provided with the air inlet 4 of insertion, and the outer wall of cooling end 1 is provided with
Gas outlet 5, water inlet 6 and delivery port 7, are provided with water channel 8 in the cooling end 1, the water inlet 6, the delivery port 7 with it is described
Water channel 8 is connected, and the gas outlet 5 is connected with the air inlet 4, and the first flange 2 is connected with EGR valve, the second flange 3
It is connected with exhaust manifold.
The EGR valve seat of the utility model embodiment and the EGR valve that is attached thereto can using hot junction arrangement, be prevented effectively from because
The waste gas coking of cold end arrangement and the clamping stagnation of EGR valve caused；In addition, being provided with the EGR valve seat of the utility model embodiment
On the one hand circulation cooling water in water channel 8, water channel 8, cooling water can be passed through with the inside and outside wall of cooling valve seat, namely cooling waste gas
Air inlet 4 two side walls, enabling the temperature of waste gas effectively reduces, and another aspect cooling water can also enter to first flange 2
Row cools, and isolates transmission of the heat to EGR valve, can not only effectively protect EGR valve, can also protect what is be connected with EGR
Other electronic components, because the temperature of the working environment of EGR valve is greatly diminished, EGR valve need not be using high-temperature material and first device
Part, common EGR valve just can meet requirement, greatly reduce cost.In the utility model embodiment, as shown in figure 4, water channel
8 not whole rings are set around air inlet 4, are, in order to avoid water channel 8 crosses with gas outlet 5, to influence the function of radiating.
As shown in figure 1, symmetrical structure centered on the first flange 2 and the second flange 3, and the first flange 2
Cross section with the second flange 3 is triangle.First flange 2 and second flange 3 are arranged to mutually centrosymmetric
Triangular structure, can effectively strengthen the stability and structural strength of first flange 2 and second flange 3, and the He of first flange 2
Second flange 3 can by by a part of heat of the waste gas of air inlet 4 by triangular structure to external diffusion, it is to avoid EGR valve
Seat is excessively concentrated and ablation or fracture because of heat, so as to be effectively increased the service life of EGR valve seat.In addition, in order to increase by
The wearability and heat resistance of one flange 2 and second flange 3, and first flange 2 and EGR valve and second flange 3 and exhaust discrimination
The surface of the bonding strength and sealing of pipe, first flange 2 and second flange 3 is preferably coated with wearing layer.
On the basis of said structure, as shown in figure 1, being equipped with 3 in the first flange 2 and the second flange 3
9,3 mounting holes 9 of mounting hole are located on 3 angles of the first flange 2 and the second flange 3 respectively, first flange 2
Preferably fastened with EGR valve, second flange 3 and exhaust manifold by mounting hole 9 and bolt, such a connected mode is not only dismantled
It is more convenient, and versatility is higher.Furthermore, mounting hole 9 is separately positioned at the drift angle of triangular structure, increase is also beneficial to
The reliability and sealing of connection, prevent the leakage of waste gas.
Further, installation of the operating personnel to first flange 2 and second flange 3 for convenience, improves disassembly efficiency, disappears
Except potential safety hazard, as shown in figure 4, being equipped with fillet 10 on 3 angles of the first flange 2 and the second flange 3.
In a specific embodiment, as shown in figures 1 and 3, the axis of the air inlet 4 and the first flange 2 and
The axis of the second flange 3 is overlapped, and the setting be conducive to as water channel 8 reserves more spaces, improves space availability ratio, enhancing pair
The cooling-down effect of waste gas.In addition, the axis of the water inlet 6, the delivery port 7 and the water channel 8 is preferably in the same plane,
And the axis of the vertical air inlet 4 of the plane, so it is easy to reduce difficulty of processing.
As shown in figure 5, the inwall of water channel 8 is provided with raised cooling fins 11, the inwall of water channel 8 has multiple convex
Cooling fins 11, can increase the contact area of cooling water and the inwall of water channel 8, so that heat exchanger effectiveness is improved, the utility model
Cooling fins 11 in embodiment are preferably flaky texture, and section is irregular, the junction of fin and internal face compared with
Thickness, can increase fin strength, and the preferred average thickness 2mm of cooling fins 11 of the utility model embodiment, height 5mm, fin is high
Degree and thickness are not limited to design size, and during other similar concrete applications, visual actual conditions are adjusted.
In a specific embodiment, the water inlet 6 is identical with the bore of the delivery port 7, and the water inlet 6 with
The bore of the delivery port 7 is more than the bore of the water channel 8, and water inlet 6 is identical with the bore of delivery port 7, it is ensured that cooling
Water is flowed through with stable hydraulic pressure, and bore of the bore more than water channel 8 of water inlet 6 and delivery port 7, can enter cooling water
Enter flow velocity in water channel 8 faster, be conducive to the progress of heat exchange, cooling water is more efficiently taken away the heat of waste gas, it is ensured that
The good heat dispersion of EGR valve seat.
Further, the cooling end 1, the first flange 2 and the second flange 3 are preferably casting integrated shaping knot
Structure, not only contributes to ensure processing uniformity, can also produce the utility model in enormous quantities on the basis of proof strength and implement
Example, saves processing cost.
Although the utility model combination above example is described, the utility model is not limited to above-mentioned reality
Example is applied, and is only limited by claim, those of ordinary skill in the art easily can modify and change to it, but simultaneously
Without departing from essential idea of the present utility model and scope.
Claims (8)
1. a kind of EGR valve seat, it is characterised in that including cooling end (1), first flange (2) and second flange (3)；
The two ends of the cooling end (1) are fixedly connected with the first flange (2) and the second flange (3) respectively, and described
Cooling end (1), the first flange (2) and the second flange (3) are provided with the air inlet (4) of insertion；
Cooling end (1) outer wall is provided with gas outlet (5), water inlet (6) and delivery port (7), and the cooling end (1) is interior to be provided with water
Road (8), the water inlet (6), the delivery port (7) are connected with the water channel (8), the gas outlet (5) and the air inlet
(4) connect；
The first flange (2) is connected with EGR valve, and the second flange (3) is connected with exhaust manifold.
2. EGR valve seat according to claim 1, it is characterised in that the first flange (2) and the second flange (3)
Centered on symmetrical structure, and the cross section of the first flange (2) and the second flange (3) is triangle.
3. EGR valve seat according to claim 2, it is characterised in that the first flange (2) and the second flange (3)
On be equipped with 3 mounting holes (9), 3 mounting holes (9) are located at the first flange (2) and the second flange (3) respectively
3 angles on.
4. EGR valve seat according to claim 2, it is characterised in that the first flange (2) and the second flange (3)
3 angles on be equipped with fillet (10).
5. EGR valve seat according to claim 1, it is characterised in that the axis of the air inlet (4) and the first flange
(2) and the second flange (3) axis overlap.
6. EGR valve seat according to claim 1, it is characterised in that water channel (8) inwall is provided with raised cooling fins
(11)。
7. EGR valve seat according to claim 1, it is characterised in that the water inlet (6) and the mouth of the delivery port (7)
Footpath is identical, and bore of the bore more than the water channel (8) of the water inlet (6) and the delivery port (7).
8. EGR valve seat according to claim 1, it is characterised in that the cooling end (1), the first flange (2) and institute
Second flange (3) is stated for casting integrated molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187932.0U CN206600215U (en) | 2017-02-28 | 2017-02-28 | A kind of EGR valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187932.0U CN206600215U (en) | 2017-02-28 | 2017-02-28 | A kind of EGR valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600215U true CN206600215U (en) | 2017-10-31 |
Family
ID=60147731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720187932.0U Expired - Fee Related CN206600215U (en) | 2017-02-28 | 2017-02-28 | A kind of EGR valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230558A (en) * | 2019-06-29 | 2019-09-13 | 无锡同益汽车动力技术有限公司 | A kind of double spool hot end EGR valve valve seat construction |
-
2017
- 2017-02-28 CN CN201720187932.0U patent/CN206600215U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230558A (en) * | 2019-06-29 | 2019-09-13 | 无锡同益汽车动力技术有限公司 | A kind of double spool hot end EGR valve valve seat construction |
| CN110230558B (en) * | 2019-06-29 | 2024-05-07 | 无锡同益汽车动力技术有限公司 | Valve seat structure of double-valve-core hot-end EGR valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20200228 |