CN108087160A - High temperature resistant egr valve - Google Patents
High temperature resistant egr valve Download PDFInfo
- Publication number
- CN108087160A CN108087160A CN201711324665.8A CN201711324665A CN108087160A CN 108087160 A CN108087160 A CN 108087160A CN 201711324665 A CN201711324665 A CN 201711324665A CN 108087160 A CN108087160 A CN 108087160A
- Authority
- CN
- China
- Prior art keywords
- valve
- bushing
- valve casing
- high temperature
- temperature resistant
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000009413 insulation Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000012546 transfer Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/74—Protection from damage, e.g. shielding means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The present invention discloses a kind of high temperature resistant EGR valve, including valve casing (1), the valve rod (2) being located in valve casing (1), it is sealed between the valve rod (2) and valve casing (1) by sealing ring (3), bushing (4) is additionally provided between the sealing ring (3) and valve casing (1), the bushing (4) is included for the fixed section (4.1) with valve casing (1) close-fitting and the seal section (4.2) with valve casing (1) clearance fit, the seal section (4.2) is equipped with to house the seal groove (4.3) of sealing ring (3), the sealing ring (3) is for the gap between sealed valve stem (2) and bushing (4).The present invention, which provides, a kind of need not set cooling water channel and can be to high temperature resistant EGR valve that sealing ring is thermally shielded.
Description
Technical field
The present invention relates to the gas-circulating system valve technology fields of engine, and in particular to a kind of high temperature resistant EGR valve.
Background technology
It is well known that exhaust gas recycling i.e. " EGR " is used as, one kind is at low cost, it is small that internal combustion engine is changed in itself, can effectively drop
The emission control measure of low NOx is more and more widely used in internal combustion engine emission control field.Exhaust gas recycling be
In engine working process, portion is introduced into air inlet pipe, into engine after being mixed with fresh air or the mixed platform gas of atomization
Cylinder is burnt again.This method is currently used for reducing NOx, a kind of effective measure of discharge capacity.In admission line
The exhaust gas recirculation circuit being configured between discharge duct for EGR gas to admission line is combustion diesel engine
In known technology.However, as environmental consciousness improves, modern gasoline engine needs tightened up discharge and better fuel oil
Economy；Fuel economy can be improved using EGR in petrol engine and reduce the discharge capacity of carbon dioxide, and can reduce
The discharge of NOx and PM.EGR valve is that the executive component for adjusting EGR gas flow is played in egr system.EGR valve includes housing,
Be equipped in housing for exhaust gas by passage, valve rod is set on passage, valve block is installed on valve rod, passes through actuator driving stem axis
To it is mobile with valve block is sealed into passage with disconnect exhaust gas connection or open passage so that exhaust gas by,
Existing EGR valve sets sealing ring to seal, to avoid exhaust gas between valve rod and valve casing between valve rod and valve casing
Gap by, and the operating temperature of conventional sealing ring is no more than 200 DEG C, therefore by setting water inlet pipe and water outlet pipe on valve casing,
It is set in valve casing around the water route that sealing ring is set, to carry out cooling down to the valve casing near sealing ring, avoids sealing ring close
Envelope failure, but set water route that can increase the processing cost of valve casing, and water inlet water pipe is set, can be to EGR valve for water cooling equipment
The part on periphery generates interference, tends to compact, efficient design concept with engine and runs counter to, and if being not provided with cooling water channel,
Since exhaust gas temperature is higher, thus the heat conducted from valve casing to sealing ring can make the temperature of sealing ring quickly more than 300 DEG C, cause
Sealing ring seal failure.
The content of the invention
The technical problems to be solved by the invention are：There is provided one kind need not set cooling water channel and can to sealing ring carry out every
The high temperature resistant EGR valve of heat.
Technical solution is used by the present invention solves the above problems：A kind of high temperature resistant EGR valve, including valve casing, is located at valve
Valve rod in shell is sealed between the valve rod and valve casing by sealing ring, and bushing, institute are additionally provided between the sealing ring and valve casing
Stating bushing is included for the fixed section with valve casing close-fitting and the seal section with valve casing clearance fit, and the seal section is equipped with to hold
The seal groove of sealing ring is put, the sealing ring is for the gap between sealed valve stem and bushing.
Compared with prior art, the advantage of the invention is that：Bushing, the fixed section of bushing are set between valve casing and valve rod
Leave gap with valve casing close-fitting, seal section and valve casing, seal groove be set in seal section to house sealing ring, sealing ring and valve casing it
Between there are gap, since the thermal conductivity factor of air is very low, therefore sets gap that can reduce valve casing and be conducted through the heat come, so as to drop
Temperature at low sealing ring；Fixing end is sealed with valve casing close-fitting, seal section and valve rod by sealing ring, thus can to avoid exhaust gas from
Gap between valve rod and valve casing passes through；Wherein, bushing can also use the material of low heat transfer coefficient, such as stainless steel, ceramics
Material makes, and also or by the way of coating, the heat come is conducted through so as to further reduce valve casing.
As a modification of the present invention, skeleton, the skeleton and valve rod close-fitting are equipped between the sealing ring and valve rod,
By the improvement, skeleton is located between sealing ring and valve rod to be supported sealing ring, and since valve rod can opposite lining
Set axial movement, skeleton is more resistant compared to sealing ring, and skeleton can be made by heat safe engineering plastics, can separate from
Valve rod is conducted to the heat of sealing ring.
As a kind of improvement that also has of the present invention, the heat-insulated of annular is recessed in the periphery wall of the fixed section of the bushing
Slot, the quantity of the heat dam are set for multiple and along bushing axially spaced-apart, by the improvement, heat dam are set to reduce
Contact area between bushing and valve casing is conducted so as to reduce valve casing to the greatest extent to the heat of bushing；And air is full of in heat dam,
Close-fitting, the thermal conductivity factor of air are carried out by the directly clearance fit of conflict and a part of a part i.e. between valve casing and bushing
It is relatively low, therefore valve casing can be reduced and be conducted through the heat come.
As a kind of improvement that also has of the present invention, exhaust gas chamber is equipped in the valve casing, the seal section is set away from exhaust gas chamber
It puts, is additionally provided with heat shield between the bushing and exhaust gas chamber, the heat shield includes being located at the between bush end face and valve casing
One insulation part, the connecting portion being linked on valve rod are bonded the second insulation part that the first side wall of exhaust gas chamber is set, first side
Wall is the side wall of corresponding bushing position, and by the improvement, exhaust gas brings heat, thus exhaust gas chamber for heat in EGR valve most
Big position, seal section is set away from exhaust gas chamber, so as to reduce the heat that bushing is transferred to from exhaust gas chamber to the greatest extent；Exhaust gas chamber and lining
Heat shield is set between set, and heat shield separates exhaust gas chamber and bushing, so as to reduce the heat that exhaust gas chamber is transferred to bushing；
Heat shield includes the first insulation part, the first insulation part for being thermally shielded to bush end face and valve casing, the second insulation part for pair
Exhaust gas chamber side wall corresponding to the cavity and sealing ring of exhaust gas chamber is thermally shielded, and connecting portion is used to increase between exhaust gas chamber and bushing
Gauge is from reduction exhaust gas chamber is conducted to the heat of bushing；Wherein, heat shield can also use the material of low heat transfer coefficient, such as
Also or by the way of coating, the heat come is conducted through so as to further reduce exhaust gas chamber for stainless steel, ceramic material.
As a kind of improvement that also has of the present invention, second insulation part is equipped with multiple protrusions towards the first side wall, described
Second insulation part is offseted by protrusion with the first side wall, and by the improvement, the second insulation part is corresponding with sealing ring by protrusion
The first side wall of exhaust gas chamber offset, protrusion can reduce the second insulation part and the contact area of valve casing, so as to reduce heat shield
Heat transfer between valve casing.
As a kind of improvement that also has of the present invention, the heat shield one side is equipped with the first limit rib, the exhaust gas chamber one side
Equipped with the limiting slot passed through for the first limit rib, first limit rib coordinates with limiting slot so that heat shield /V is in valve casing
Interior, by the improvement, when installing heat shield, the first limit rib insertion limiting slot turns so as to limit heat shield in exhaust gas intracavitary
It is dynamic.
As a kind of improvement that also has of the present invention, the connecting portion and valve casing clearance fit, between the connecting portion and valve rod
Gap coordinates, and by the improvement, connecting portion coordinates with valve casing and valve lever clearance, so as to reduce between valve casing and heat shield, valve
Heat transfer between bar and heat shield.
As a kind of improvement that also has of the present invention, the valve casing outer wall, which corresponds to, to be equipped with first and is recessed at heat shield, and described the
The connecting portion that one concave bottom surface corresponds to heat shield is set, and by the improvement, the first recess can reduce valve casing in heat shield
Wall thickness at place gathers so as to reduce valve casing in the heat of heat shield, with to radiating at heat shield；And first is concave
The connecting portion that bottom surface corresponds to heat shield is set, and so as to reduce the heat accumulation near connecting portion, is radiated to connecting portion, so as to
Reduction is conducted from exhaust gas chamber to the heat of bushing.
As a kind of improvement that also has of the present invention, the side wall of the exhaust gas chamber is equipped with to limit heat shield along valve rod axial direction
Second limit rib of displacement, by the improvement, the second limit rib is used to limit the axial displacement of heat shield.
As a kind of improvement that also has of the present invention, the valve casing outer wall corresponds to and the second recess is equipped at bushing, and described second
The fixed section that concave bottom surface corresponds to bushing is set, and by the improvement, the second recess can reduce valve casing where bushing
Wall thickness, so as to reduce valve casing near bushing heat accumulation, to radiate to bushing, pass through bushing so as to reduce valve casing
It conducts to the heat of sealing ring；And second concave bottom surface correspond to fixed section setting, to radiate in advance to fixing end, so as to reduce
The heat of seal section.
Description of the drawings
Fig. 1 is overall structure diagrammatic cross-section of the present invention.
Fig. 2 is enlarged structure schematic diagram at Figure 1A.
Fig. 3 is dimensional structure diagram at exhaust gas chamber.
1- valve casings, 1.1- exhaust gas chambers, 1.1.1- the first side walls, 1.2- limiting slots, 1.3- first are recessed, and 1.4- second is recessed
It falls into, the second limit ribs of 1.5-, 2- valve rods, 3- sealing rings, 4- bushings, 4.1- fixed sections, 4.2- seal sections, 4.3- seal grooves,
4.4- heat dams, 5- skeletons, 5.1- grooves, 6- heat shields, the first insulation parts of 6.1-, 6.2- connecting portions, the second insulation parts of 6.3-,
6.4- protrusions, the first limit ribs of 6.5-.
Specific embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 3,
A kind of high temperature resistant EGR valve including valve casing 1, the valve rod being located in valve casing 12, passes through between the valve rod 2 and valve casing 1
Sealing ring 3 seals, and is additionally provided with bushing 4 between the sealing ring 3 and valve casing 1, the bushing 4 include for 1 close-fitting of valve casing
Fixed section 4.1 and the seal section 4.2 with 1 clearance fit of valve casing, the seal section 4.2 are equipped with to house the sealing of sealing ring 3
Slot 4.3, the sealing ring 3 is for the gap between sealed valve stem 2 and bushing 4.
Wherein, skeleton 5, the skeleton 5 and 2 close-fitting of valve rod are equipped between the sealing ring 3 and valve rod 2.
Wherein, the periphery wall of the skeleton 5 is equipped with the groove 5.1 being embedded in for sealing ring 3, and groove is used to limit sealing ring
Skeleton is deviate from position vertically to avoid sealing ring, so as to ensure the sealing effect of sealing ring, and skeleton and valve rod close-fitting, from
And gap of the exhaust gas between skeleton and valve rod is avoided to pass through..
Wherein, the heat dam 4.4 of annular, the heat dam are recessed in the periphery wall of the fixed section 4.1 of the bushing 4
4.4 quantity is set for multiple and along bushing 4 axially spaced-apart.
Wherein, exhaust gas chamber 1.1 is equipped in the valve casing 1, the seal section 4.2 is set away from exhaust gas chamber 1.1, the bushing
Be additionally provided with heat shield 6 between 4 and exhaust gas chamber 1.1, the heat shield 6 include be located between 4 end face of bushing and valve casing 1 first every
The second insulation part that hot portion 6.1, the connecting portion 6.2 being linked on valve rod 2, the first side wall 1.1.1 of fitting exhaust gas chamber 1.1 are set
6.3, the first side wall 1.1.1 are the side wall of corresponding 4 position of bushing.
Wherein, second insulation part 6.3 is equipped with multiple raised 6.4 towards the first side wall 1.1.1, second insulation part
6.3 are offseted by protrusion 6.4 with the first side wall 1.1.1.
Wherein, 6 one side of heat shield is equipped with the first limit rib 6.5, and 1.1 one side of exhaust gas chamber is equipped with for the first /V
The limiting slot 1.2 that muscle 6.5 passes through, first limit rib 6.5 coordinate with limiting slot 1.2 so that 6 /V of heat shield is in valve casing 1
It is interior.
Wherein, the connecting portion 6.2 and 1 clearance fit of valve casing, the connecting portion 6.2 and 2 clearance fit of valve rod.
Wherein, 1 outer wall of valve casing corresponds to and the first recess 1.3 is equipped at heat shield 6, the bottom surface of first recess 1.3
The connecting portion 6.2 of corresponding heat shield 6 is set.
Wherein, 1 outer wall of valve casing corresponds to and the second recess 1.4 is equipped at bushing 4, the bottom surface pair of second recess 1.4
The fixed section 4.1 of bushing 4 is answered to set.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not only limited to above example, and concrete structure is allowed to vary.All protection models in independent claims of the present invention
Interior made various change is enclosed to all fall in the scope of protection of the present invention.
Claims (10)
1. a kind of high temperature resistant EGR valve, including valve casing (1), the valve rod (2) being located in valve casing (1), the valve rod (2) and valve casing (1)
Between pass through sealing ring (3) seal, it is characterised in that：Bushing (4) is additionally provided between the sealing ring (3) and valve casing (1), it is described
Bushing (4) is included for the fixed section (4.1) with valve casing (1) close-fitting and the seal section (4.2) with valve casing (1) clearance fit, institute
It states seal section (4.2) to be equipped with to house the seal groove (4.3) of sealing ring (3), the sealing ring (3) is used for sealed valve stem (2)
Gap between bushing (4).
2. high temperature resistant EGR valve according to claim 1, it is characterised in that：It is set between the sealing ring (3) and valve rod (2)
There are skeleton (5), the skeleton (5) and valve rod (2) close-fitting.
3. high temperature resistant EGR valve according to claim 1, it is characterised in that：Outside the fixed section (4.1) of the bushing (4)
It is recessed with the heat dam (4.4) of annular in peripheral wall, the quantity of the heat dam (4.4) is between multiple and axial direction along bushing (4)
Every setting.
4. high temperature resistant EGR valve according to claim 1, it is characterised in that：Exhaust gas chamber (1.1) is equipped in the valve casing (1),
The seal section (4.2) is set away from exhaust gas chamber (1.1), and heat shield is additionally provided between the bushing (4) and exhaust gas chamber (1.1)
(6), the heat shield (6) includes the first insulation part (6.1) being located between bushing (4) end face and valve casing (1), is linked in valve rod
(2) the second insulation part (6.3) that the first side wall (1.1.1) of connecting portion (6.2), fitting exhaust gas chamber (1.1) on is set, it is described
The first side wall (1.1.1) is the side wall of corresponding bushing (4) position.
5. high temperature resistant EGR valve according to claim 4, it is characterised in that：Second insulation part (6.3) direction, first side
Wall (1.1.1) is equipped with multiple raised (6.4), and second insulation part (6.3) passes through raised (6.4) and the first side wall (1.1.1)
It offsets.
6. high temperature resistant EGR valve according to claim 4, it is characterised in that：Heat shield (6) one side is equipped with the first /V
Muscle (6.5), exhaust gas chamber (1.1) one side are equipped with the limiting slot (1.2) passed through for the first limit rib (6.5), first limit
Position muscle (6.5) coordinates with limiting slot (1.2) so that heat shield (6) /V is in valve casing (1).
7. high temperature resistant EGR valve according to claim 4, it is characterised in that：The connecting portion (6.2) and valve casing (1) gap
Cooperation, the connecting portion (6.2) and valve rod (2) clearance fit.
8. high temperature resistant EGR valve according to claim 4, it is characterised in that：Valve casing (1) outer wall corresponds to heat shield (6)
Place is equipped with the first recess (1.3), and the bottom surface of first recess (1.3) corresponds to connecting portion (6.2) setting of heat shield (6).
9. high temperature resistant EGR valve according to claim 4, it is characterised in that：The side wall of the exhaust gas chamber (1.1) is equipped with and is used for
Limit second limit rib (1.5) of the heat shield (6) along valve rod (2) axial displacement.
10. high temperature resistant EGR valve according to claim 1, it is characterised in that：Valve casing (1) outer wall is corresponded at bushing (4)
Equipped with the second recess (1.4), the bottom surface of second recess (1.4) corresponds to fixed section (4.1) setting of bushing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711324665.8A CN108087160B (en) | 2017-12-13 | 2017-12-13 | High temperature resistant EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711324665.8A CN108087160B (en) | 2017-12-13 | 2017-12-13 | High temperature resistant EGR valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108087160A true CN108087160A (en) | 2018-05-29 |
| CN108087160B CN108087160B (en) | 2024-03-26 |
Family
ID=62174079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711324665.8A Active CN108087160B (en) | 2017-12-13 | 2017-12-13 | High temperature resistant EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087160B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064296A (en) * | 1999-12-29 | 2001-07-09 | 이계안 | Egr valve |
| JP2004011422A (en) * | 2002-06-03 | 2004-01-15 | Keihin Corp | Exhaust gas recirculation valve |
| US20080295812A1 (en) * | 2007-05-30 | 2008-12-04 | Mahoro Fujita | Anti-coking bushing assembly for an exhaust recirculation control valve |
| US20130167791A1 (en) * | 2010-08-26 | 2013-07-04 | Pierburg Gmbh | Exhaust gas recirculating valve for an internal combustion engine |
| WO2014054118A1 (en) * | 2012-10-02 | 2014-04-10 | 三菱電機株式会社 | Valve |
| CN104088730A (en) * | 2014-07-09 | 2014-10-08 | 无锡隆盛科技股份有限公司 | Sealing structure for electric EGR valves |
| CN205349569U (en) * | 2016-01-25 | 2016-06-29 | 北京美联桥科技发展有限公司 | EGR valve and electronic EGR valve gear |
| CN207554227U (en) * | 2017-12-13 | 2018-06-29 | 博格华纳排放系统（宁波）有限公司 | High temperature resistant egr valve |
-
2017
- 2017-12-13 CN CN201711324665.8A patent/CN108087160B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010064296A (en) * | 1999-12-29 | 2001-07-09 | 이계안 | Egr valve |
| JP2004011422A (en) * | 2002-06-03 | 2004-01-15 | Keihin Corp | Exhaust gas recirculation valve |
| US20080295812A1 (en) * | 2007-05-30 | 2008-12-04 | Mahoro Fujita | Anti-coking bushing assembly for an exhaust recirculation control valve |
| US20130167791A1 (en) * | 2010-08-26 | 2013-07-04 | Pierburg Gmbh | Exhaust gas recirculating valve for an internal combustion engine |
| JP2013540926A (en) * | 2010-08-26 | 2013-11-07 | ピールブルク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Exhaust gas recirculation valve for internal combustion engines. |
| WO2014054118A1 (en) * | 2012-10-02 | 2014-04-10 | 三菱電機株式会社 | Valve |
| CN204420296U (en) * | 2012-10-02 | 2015-06-24 | 三菱电机株式会社 | Valve |
| CN104088730A (en) * | 2014-07-09 | 2014-10-08 | 无锡隆盛科技股份有限公司 | Sealing structure for electric EGR valves |
| CN205349569U (en) * | 2016-01-25 | 2016-06-29 | 北京美联桥科技发展有限公司 | EGR valve and electronic EGR valve gear |
| CN207554227U (en) * | 2017-12-13 | 2018-06-29 | 博格华纳排放系统（宁波）有限公司 | High temperature resistant egr valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108087160B (en) | 2024-03-26 |
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