CN107882662A - Binary channels EGR dish valves - Google Patents
Binary channels EGR dish valves Download PDFInfo
- Publication number
- CN107882662A CN107882662A CN201711473509.8A CN201711473509A CN107882662A CN 107882662 A CN107882662 A CN 107882662A CN 201711473509 A CN201711473509 A CN 201711473509A CN 107882662 A CN107882662 A CN 107882662A
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- CN
- China
- Prior art keywords
- valve body
- axle sleeve
- pole
- center
- exhaust steam
- 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.)
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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
- F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of binary channels EGR dish valves, including valve body and the exhaust steam passage being separately positioned on valve body one and exhaust steam passage two, the center-pole of two exhaust steam passage central axis is provided through in the valve body, the center-pole is disposed with valve block one and valve block two by rivet interlacement from top to bottom, and center-pole bottom is blocked by the plug in valve body；It is provided with axle sleeve on the valve body on the top of exhaust steam passage one, axle sleeve top, which compresses, sets a diaphragm seal being sleeved on center-pole, is provided with stage clip above diaphragm seal and is arranged on the top end of compression spring and press spring base that both ends are fixedly connected with the valve body；The axle sleeve is nested in the axle sleeve hole on the top being opened in valve body, and axle sleeve hole is blind hole and bottom does not connect with exhaust steam passage one；The bottom of the axle sleeve hole is provided with the back-up ring for carrying out axial limiting to center-pole, and the circlip groove of setting-in back-up ring is offered on the center-pole periphery of corresponding back-up ring；The axle sleeve is set with valve body same material.
Description
Technical field
The present invention relates to automobile exhaust gas recirculating system technical field, particularly a kind of binary channels EGR dish valves.
Background technology
EGR technology, i.e. EGR Technology (Exhaust Gas Recycle) are to be directed to engine pernicious gas
(NOx) emission-control equipment set.Waste gas after part burning in engine is entered air inlet pipe by it by secondary cycle
Engine chamber burning is again introduced into after being mixed with fresh air, to slow down the combustion process of burning indoor fuel gas, suitably
Ignition temperature is controlled, so as to reach the purpose for reducing NOx emission.
EGR valve is exactly to control the key element of secondary exhaust gas air inflow, because secondary exhaust gas air inflow needs are immediately accurate
Control：Engine ECU is according to parameters such as the rotating speed of engine, load (throttle opening), temperature, charge flow rate, delivery temperatures
And calculate, control signal PWM (high-frequency impulse) needed for EGR valve, and then the aperture of control valve are exported, so as to control engine portion
Part flow waste gas simultaneously enters gas handling system through EGR valve, and cylinder is entered after being mixed with gaseous mixture and participates in burning.This portion enters
Cylinder participates in the burning of gaseous mixture, temperature when reducing burning in cylinder.Because NOx is generated under conditions of high-temperature oxygen-enriched
, therefore NOx generation is inhibited, so as to reduce the content of the NOx in complete machine exhaust.
Traditional EGR valve axle sleeve is made from valve body of different materials, and axle sleeve needs have wear-resisting characteristic, but long
After time operation, axle sleeve causes the consequence of clamping stagnation to occur because high temperature easily produces thermal expansion phenomenon, can also cause axle sleeve in valve
Loose phenomenon is produced in vivo.Now just needing, which increases extra technique, comes fixed valve body and axle sleeve, it is necessary to aperiodically to axle sleeve
Maintenance fixation is carried out, is wasted time and energy；And the material, axle sleeve with antiwear characteristic is costly again with high temperature resistant, changing axle sleeve needs
Want a large number of expense.
The Chinese patent of Application No. 200820041698.1 discloses a kind of double-channel butterfly valve structure, including valve body, valve
Piece, adjusting sleeve, drive shaft assembly, gasket seal, holddown spring and protective cover etc., the exhaust of the patent utilization six-cylinder diesel engine
Pulse energy, there is provided two discarded passages, to realize higher EGR rate, realize that waste gas recycles.Although the patent is effectively
Prevent the generation of catching phenomenon, but the patent in actual installation practice, it is necessary to which staff's human hand is extend into device
Portion three adjusting sets in device are installed successively, wastes time and energy.
The content of the invention
The technical problem to be solved in the invention there is provided a kind of binary channels EGR dish valves, be grown with solving traditional EGR valve
Occurs clamping stagnation consequence after time operation, loose phenomenon easily occurs for axle sleeve and valve body, the problem of waste of manpower, time, to save enterprise
Industry is paid wages.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
Binary channels EGR dish valves, including valve body and the exhaust steam passage one and exhaust steam passage two that are separately positioned on valve body, institute
The center-pole that two exhaust steam passage central axis are provided through in valve body is stated, the center-pole is disposed with logical from top to bottom
Cross rivet interlacement and be located at valve block one and valve block two in exhaust steam passage one and exhaust steam passage two respectively, center-pole bottom passes through embedding
Blocked loaded on the plug for being used to prevent high-temperature tail gas from revealing from valve body bottom in valve body；On the valve body on the top of exhaust steam passage one
The axle sleeve for centre of location bar top is provided with, axle sleeve top, which compresses, sets one to be sleeved on center-pole for preventing high temperature tail
The diaphragm seal of gas leakage, stage clip is provided with above diaphragm seal and is arranged on the top end of compression spring and pressure that both ends are fixedly connected with the valve body
Spring abutment；The axle sleeve is nested in the axle sleeve hole on the top being opened in valve body, and axle sleeve hole is blind hole and bottom does not lead to waste gas
Road one connects；The bottom of the axle sleeve hole is provided with the back-up ring for carrying out axial limiting to center-pole, the center of corresponding back-up ring
The circlip groove of setting-in back-up ring is offered on bar periphery；The axle sleeve is set with valve body same material.
Further optimisation technique scheme, the axle sleeve and valve body are RTQSi5 heat resistant iron castings.
It is as follows as a result of above technical scheme, the invention technological progress.
The present invention is compact-sized, novel in design, and installation operation is convenient, by the way that axle sleeve and valve body are used into same material,
So that the present apparatus can not merely be effectively prevented from the appearance of clamping stagnation consequence, avoid occurring loose phenomenon between axle sleeve and valve body,
Mounting process is also simplify, has saved the set-up time.
Axle sleeve of the present invention and valve body are RTQSi5 heat resistant iron castings so that the present invention can be therefore extra without installing
Expensive adjusting set, saved enterprise's spending.
The present invention is clamped in circlip groove and set with opening up circlip groove in the center-pole side wall of axle sleeve hole bottom flush
Back-up ring, the axial movement of center-pole can be limited, avoids center-pole from being teetertottered in rotation process.
The present invention is provided with plug in center-pole bottom, and plug is in valve body so that the present invention is meeting valve body top
While portion can realize sealing function, additionally it is possible to meet the sealing function of body base.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein：1st, valve body, 2, center-pole, 3, press spring base, 4, stage clip, 5, diaphragm seal, 6, axle sleeve hole, 7, axle sleeve, 8, back-up ring,
9th, valve body upper hole, 10, valve block one, 11, valve body mider hole, 12, valve block two, 13, valve body lower portion hole, 14, circlip groove, 15, stifled
Head, 16, exhaust steam passage one, 17, exhaust steam passage two.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in further detail.
A kind of binary channels EGR dish valves, with reference to shown in Fig. 1, including valve body 1, center-pole 2, press spring base 3, stage clip 4, diaphragm seal
5th, axle sleeve hole 6, axle sleeve 7, back-up ring 8, valve block 1, valve block 2 12, circlip groove 14, plug 15, exhaust steam passage 1 and waste gas lead to
Road 2 17.
Exhaust steam passage 1 and exhaust steam passage 2 17 are separately positioned on valve body 1, for the waste gas in exhaust manifold to be arranged
Enter exhaust steam passage, to obtain higher EGR rate；Valve block 1 and valve block 2 12 are located at respectively to be led in exhaust steam passage 1 and waste gas
In road 2 17, and it is fixedly installed on successively on center-pole 2 from top to bottom by rivet；Axle sleeve hole 6 is opened in the bottom in valve body,
Do not connected for blind hole and bottom with exhaust steam passage one；Offered on valve body 1 between axle sleeve hole 6 and exhaust steam passage 1 on valve body
Portion hole 9, valve body mider hole 11, exhaust steam passage 2 17 are offered on the valve body 1 between exhaust steam passage 1 and exhaust steam passage 2 17
Valve body lower portion hole 13 is offered on the valve body 1 of bottom；Center-pole 2 sequentially passes through valve body upper hole 9, exhaust steam passage 1, valve body
Mider hole 11, exhaust steam passage 2 17 and valve body lower portion hole 13 are arranged in valve body 1；Circlip groove 14 is opened in and the bottom of axle sleeve hole 6
On the periphery of the center-pole 2 of flush；The corresponding setting-in of back-up ring 8 is arranged in circlip groove 14, and is located at the bottom of axle sleeve hole 6, is used
In to the progress axial limiting of center-pole 2；Axle sleeve 7 is located at the top of back-up ring 8, axle sleeve 7 and discarded passage in axle sleeve hole 6
The center-pole 2 on one 16 tops is equipped, for the top of centre of location bar 2；Diaphragm seal 5 compresses the top for being arranged on axle sleeve 7, and is set with
On center-pole 2, for preventing high-temperature tail gas from revealing；Stage clip 4 is arranged on the top of diaphragm seal, and press spring base 3 is arranged on stage clip 4 and pushed up
End, the both ends of press spring base 3 are fixedly connected with valve body 1 so that diaphragm seal 5 can effectively be pressed to the top of axle sleeve 7 by stage clip 4
End；The present invention is while meeting that body top can realize sealing function, additionally it is possible to meet the sealing function of body base, this
Invention is provided with plug 15 in the bottom of center-pole 2, and plug 15 is in valve body 1, for preventing high-temperature tail gas from the bottom of valve body 1
Leakage.
In order to prevent the present invention in long-term operation rear axle housing easily produces thermal expansion phenomenon, axle sleeve clamping stagnation because of high temperature
Mandrel phenomenon and axle sleeve is caused to produce the generation of loose phenomenon in valve body, the present invention sets the material of axle sleeve 7 and valve body 1
It is set to of the same race, is RTQSi5 heat resistant iron castings, so may be such that the present invention is same meet catching phenomenon can be avoided to occur
When, without using expensive axle sleeve, greatly reduce the production cost of device；And because the material of axle sleeve 7 and valve body 1 is equal
Using cheap material of the same race so that need not additionally be installed again in valve body mider hole 11 and valve body lower portion hole 13 expensive
Adjusting set, save cost of parts, reduce assembly technology, avoid because other adjusting sets are installed and caused by unnecessary fiber crops
It is tired.
First, back-up ring 8 is caught in the circlip groove 14 of center-pole 2 in actual installation practice by the present invention；Then, center
Bar 2 inserts from the top of valve body 1, sequentially passes through valve body upper hole 9, valve body mider hole 11 and valve body lower portion hole 13 and is inserted into valve body bottom
In the plug 15 that portion is set, now, the bottom surface of back-up ring 8 is just flush with the ground of axle sleeve hole 6；Then, axle sleeve 7 is enclosed on center-pole
2 upper ends, press in axle sleeve hole 6 so that axle sleeve 7 compresses back-up ring 8；Then, the interference of diaphragm seal 5 is loaded in axle sleeve hole 6, and
So that diaphragm seal 5 is close to set with axle sleeve 7, then is placed on the top of diaphragm seal 5 by stage clip 4, press spring base 3 is fixedly installed on valve body
On 1 so that press spring base 3 compresses stage clip 4, while diaphragm seal 5 is pressed on axle sleeve 7 by stage clip 4；Finally, valve block 1 is passed through
Rivet is installed in place on the center-pole 2 on exhaust steam passage 1, and valve block 2 12 is installed in place in exhaust steam passage by rivet
On 2 17 center-pole 2.Present invention installation reduces the technique in valve body mider hole 11 and the installation and adjustment of valve body lower portion hole 13 set,
Firmly it is flush-mounted in simultaneously without by axle sleeve 7 in valve body upper hole 9, need to is out of the top of valve body 1 in axle sleeve hole 6 only
Can so that the present invention is easier for installation.
Claims (2)
1. binary channels EGR dish valves, including valve body（1）And it is separately positioned on valve body（1）On exhaust steam passage one（16）And waste gas
Passage two（17）, the valve body（1）Inside it is provided through the center-pole of two exhaust steam passage central axis（2）, the center-pole
（2）It is disposed with from top to bottom by rivet interlacement and is located at exhaust steam passage one respectively（16）With exhaust steam passage two（17）In
Valve block one（10）With valve block two（12）, center-pole（2）Bottom passes through flush-mounted in valve body（1）It is interior to be used to prevent high-temperature tail gas from valve body
（1）The plug of bottom leakage（15）Closure；Positioned at exhaust steam passage one（16）It is provided with the valve body on top for centre of location bar
（2）The axle sleeve on top（7）, axle sleeve（7）Top, which compresses, sets one to be sleeved on center-pole（2）It is upper to be used to prevent what high-temperature tail gas from revealing
Diaphragm seal（5）, diaphragm seal（5）Top is provided with stage clip（4）And it is arranged on stage clip（4）Top and both ends and valve body（1）It is fixed
The press spring base of connection（3）；
It is characterized in that：The axle sleeve（7）It is nested in the axle sleeve hole on the top being opened in valve body（6）In, axle sleeve hole（6）To be blind
Hole and bottom does not connect with exhaust steam passage one；The bottom of the axle sleeve hole is provided with for center-pole（2）Carry out axial limiting
Back-up ring（8）, the center-pole of corresponding back-up ring（2）The circlip groove of setting-in back-up ring is offered on periphery（14）；The axle sleeve（7）With
Valve body（1）Same material is set.
A kind of 2. intelligent brushless motor EGR valve according to claim 1, it is characterised in that：The axle sleeve（7）With valve body
（1）It is RTQSi5 heat resistant iron castings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473509.8A CN107882662A (en) | 2017-12-29 | 2017-12-29 | Binary channels EGR dish valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711473509.8A CN107882662A (en) | 2017-12-29 | 2017-12-29 | Binary channels EGR dish valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882662A true CN107882662A (en) | 2018-04-06 |
Family
ID=61770465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711473509.8A Withdrawn CN107882662A (en) | 2017-12-29 | 2017-12-29 | Binary channels EGR dish valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869109A (en) * | 2018-07-27 | 2018-11-23 | 湖南天雁机械有限责任公司 | Adjust the integrated control valve of exhaust gas flow |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1311754B1 (en) * | 2000-08-24 | 2004-11-10 | Siemens Aktiengesellschaft | Valve device comprising a cover flap and a thermal bridge for an exhaust gas recirculation system and method for the operation thereof |
| DE102006054041B3 (en) * | 2006-11-16 | 2008-05-08 | Pierburg Gmbh | Regulating device for an internal combustion engine |
| CN201273229Y (en) * | 2008-08-28 | 2009-07-15 | 中国第一汽车集团公司无锡柴油机厂 | Double-channel butterfly valve structure |
| CN201739604U (en) * | 2010-06-02 | 2011-02-09 | 潍坊威度电子科技有限公司 | Integral electric EGR valve |
| US20110139132A1 (en) * | 2008-06-12 | 2011-06-16 | Kristopher Smith | Exhaust gas recirculation valve thrust collar |
| CN105351102A (en) * | 2015-12-04 | 2016-02-24 | 无锡隆盛科技股份有限公司 | Diesel engine electronic throttle valve |
| CN207660733U (en) * | 2017-12-29 | 2018-07-27 | 无锡隆盛科技股份有限公司 | Binary channels EGR dish valves |
-
2017
- 2017-12-29 CN CN201711473509.8A patent/CN107882662A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1311754B1 (en) * | 2000-08-24 | 2004-11-10 | Siemens Aktiengesellschaft | Valve device comprising a cover flap and a thermal bridge for an exhaust gas recirculation system and method for the operation thereof |
| DE102006054041B3 (en) * | 2006-11-16 | 2008-05-08 | Pierburg Gmbh | Regulating device for an internal combustion engine |
| US20110139132A1 (en) * | 2008-06-12 | 2011-06-16 | Kristopher Smith | Exhaust gas recirculation valve thrust collar |
| CN201273229Y (en) * | 2008-08-28 | 2009-07-15 | 中国第一汽车集团公司无锡柴油机厂 | Double-channel butterfly valve structure |
| CN201739604U (en) * | 2010-06-02 | 2011-02-09 | 潍坊威度电子科技有限公司 | Integral electric EGR valve |
| CN105351102A (en) * | 2015-12-04 | 2016-02-24 | 无锡隆盛科技股份有限公司 | Diesel engine electronic throttle valve |
| CN207660733U (en) * | 2017-12-29 | 2018-07-27 | 无锡隆盛科技股份有限公司 | Binary channels EGR dish valves |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869109A (en) * | 2018-07-27 | 2018-11-23 | 湖南天雁机械有限责任公司 | Adjust the integrated control valve of exhaust gas flow |
| CN108869109B (en) * | 2018-07-27 | 2023-04-07 | 湖南天雁机械有限责任公司 | Integrated control valve for regulating exhaust gas flow |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |
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| WW01 | Invention patent application withdrawn after publication |