CN101349222A - Double-channel butterfly valve structure - Google Patents
Double-channel butterfly valve structure Download PDFInfo
- Publication number
- CN101349222A CN101349222A CNA2008101957522A CN200810195752A CN101349222A CN 101349222 A CN101349222 A CN 101349222A CN A2008101957522 A CNA2008101957522 A CN A2008101957522A CN 200810195752 A CN200810195752 A CN 200810195752A CN 101349222 A CN101349222 A CN 101349222A
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- China
- Prior art keywords
- egr valve
- drive shaft
- shaft assembly
- egr
- butterfly valve
- 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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- 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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention relates to a structure of a dual channel butterfly valve arranged on a hot end, in particular to a hot end dual channel EGR valve which is mounted on a six cylinder diesel engine. The hot end dual channel EGR valve is characterized in that two waste gas channels are arranged on the body of the EGR valve, a drive shaft assembly is mounted in the EGR valve body, two EGR valve plates are fixed on a drive shaft of the drive shaft assembly via rivets, a sealing gasket, a pressing spring and a protective sleeve are arranged on the drive shaft of the drive shaft assembly, the pressing spring tightly compresses the sealing gasket, and is arranged in the protective sleeve. The drive shaft is equipped with an adjusting sleeve which is used to adjust the clearance between the two EGR valve plates. The dual channel butterfly valve can sufficiently utilize the exhaust pulse energy of the six cylinder diesel engine, and realizes higher EGR rate to purify the diesel engine, and thereby enabling the engine to be easier to realize recycling of waste gas, and meeting high requirements of discharge regulations.
Description
Technical field
The present invention relates to the double-channel butterfly valve structure that a kind of hot junction is arranged, specifically be used to be installed on the hot junction Twin channel EGR valve on the six-cylinder diesel engine motor.
Background technique
Increasingly stringent along with to the control of vehicular engine emission level for the diesel engine that requires to reach state IV and above emission level, must adopt the exhaust gas aftertreatment techniques that comprises EGR.EGR technology main purpose is to allow part waste gas participates in burning (being commonly called as exhaust gas recirculation, EGR) by certain device in sending the firing chamber back in the Diesel Engine Exhaust Pipe, thereby reduces the NOx in the waste gas, the concentration of PM, reaches emission request.EGR leads the height of (waste gas that participates in recirculation), is controlling the concentration of NOx in the waste gas, PM, i.e. the height of emission level.The general at present single valve single channel structure that adopts, be arranged as main (cooler for recycled exhaust gas outlet end) with the cold junction valve, EGR waste gas need just can enter recirculation by the device of more complicated, more commonly on suction port, install automatically controlled air inlet shutter additional, but cost is than higher.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby the double-channel butterfly valve structure that provides a kind of hot junction to arrange, can make full use of the exhaust pulses energy of six-cylinder diesel engine, realize that higher EGR leads, to realize the diesel oil emission controls by improving combustion, make motor be easier to realize exhaust gas recirculation, satisfy higher emission regulation demands.
According to technological scheme provided by the invention, double-channel butterfly valve structure comprises the EGR valve body, feature is to be furnished with two exhaust steam passages on the valve body of described EGR valve, in the EGR valve body drive shaft assembly is installed, and two EGR valve blocks are fixed on the live axle of drive shaft assembly by rivet; Be furnished with gasket seal, holddown spring and protecting jacket on the live axle of described drive shaft assembly, holddown spring compresses gasket seal, and is arranged in the protecting jacket.Described live axle is provided with adjusts cover, adjusts cover and is used to adjust two gaps between the EGR valve block.
Described adjustment cover adopts heat-resisting steels to tremble and makes, prevent that at high temperature live axle is used for thermal expansion and clamping stagnation.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Owing on the EGR valve body, arrange two exhaust steam passages, control simultaneously by two EGR valve blocks, the EGR valve block is installed on the live axle by driving mechanisms control, on the EGR valve body, be furnished with and adjust cover, adjust cover and can be used for adjusting two gaps between the EGR valve block, to satisfy under the prerequisite of certain amount of leakage, the EGR valve block rotates flexibly; Because this adjustments cover adopts heat-resisting steel material to make, prevent that at high temperature live axle is owing to thermal expansion and clamping stagnation; Because the drive end at live axle is furnished with gasket seal, holddown spring and protecting jacket, in order to seal the micro high-temperature waste gas of from the live axle gap, revealing; In a word, this EGR valve applies on the six-cylinder diesel engine motor, can make full use of the exhaust pulses energy of six cylinder machines, can realize that higher EGR leads, and to realize emission controls by improving combustion, makes motor satisfy higher emission regulation demands.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an EGR valve sectional view of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1 and Figure 2, comprise EGR valve body 1, two EGR valve blocks 2, rivets 3, adjust cover 4, drive shaft assembly 5, gasket seal 6, holddown spring 7 and protecting jacket 8 etc.
EGR valve of the present invention adopts arranges two exhaust steam passages (A, B) on the EGR of EGR valve valve body 1, drive shaft assembly 5 is installed in EGR valve body 1, and drive shaft assembly 5 is fixed in the EGR valve body 1 by adjusting cover.Two EGR valve blocks 2 are fixed in by rivet 3 on the live axle of drive shaft assembly 5, drive 2, two EGR valve blocks 2 of two EGR valve blocks simultaneously by a live axle in the described drive shaft assembly 5 and are controlled by same live axle.Described live axle is provided with adjusts cover 4, adjusts cover 4 and is used to adjust two gaps between the EGR valve block, and to satisfy under the prerequisite of certain amount of leakage, the EGR valve block rotates flexibly.Be furnished with gasket seal 6, holddown spring 7 and protecting jacket 8 on the live axle of drive shaft assembly 5, heat-resisting holddown spring 7 is used to compress gasket seal 6, and is arranged in the protecting jacket 8, in order to seal the micro high-temperature waste gas of revealing from the live axle gap.Described adjustment cover 4 adopts heat-resisting steels to tremble and makes, and prevents at high temperature, and drive shaft assembly 5 is because thermal expansion and clamping stagnation.
For six cylinder charge inter cooling formula diesel engines, outlet pipe is usually designed to pulsed, promptly first, two, the shared gas exhaust manifold of three cylinders, the 4th, five, the shared gas exhaust manifold of six cylinders, and then enter the booster turbine import, principle according to six-cylinder diesel engine, such layout can obtain higher waste gas ability and utilize (being exhaust pressure wave), use twin-channel EGR valve, from above-mentioned two gas exhaust manifolds, obtain part waste gas respectively, connect two exhaust steam passage A, B, because the exhaust pulses pressure ratio is higher, can more successfully enter recirculation in the suction tude behind the charge inter cooling, this twin-channel valve arranges that can obtain higher EGR leads, even can cancel the layout of air inlet shutter.
Claims (4)
1, a kind of double-channel butterfly valve structure, comprise EGR valve body (1), it is characterized in that being furnished with two exhaust steam passages of A, B on the described valve body (1), drive shaft assembly (5) is installed in EGR valve body (1), two EGR valve blocks (2) are fixed on the live axle of drive shaft assembly (5) by rivet (3).
2, a kind of double-channel butterfly valve structure according to claim 1; it is characterized in that being furnished with gasket seal (6), holddown spring (7) and protecting jacket (8) on the live axle of described drive shaft assembly (5); holddown spring (7) compresses gasket seal (6), and is arranged in the protecting jacket (8).
3, a kind of double-channel butterfly valve structure according to claim 1 is characterized in that described live axle is provided with adjustment cover (4), and adjustment cover (4) is used to adjust the gap between two EGR valve blocks (2).
4, a kind of double-channel butterfly valve structure according to claim 1 is characterized in that described adjustment cover (4) adopts heat-resisting steels to tremble and makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101957522A CN101349222A (en) | 2008-08-28 | 2008-08-28 | Double-channel butterfly valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101957522A CN101349222A (en) | 2008-08-28 | 2008-08-28 | Double-channel butterfly valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101349222A true CN101349222A (en) | 2009-01-21 |
Family
ID=40268152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101957522A Pending CN101349222A (en) | 2008-08-28 | 2008-08-28 | Double-channel butterfly valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101349222A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109058A (en) * | 2010-10-08 | 2013-05-15 | 博格华纳公司 | Engine breathing system valve and seal |
| CN108019562A (en) * | 2016-10-31 | 2018-05-11 | 北京精密机电控制设备研究所 | A kind of dual spring pipe armature device |
| CN109073093A (en) * | 2016-05-17 | 2018-12-21 | 株式会社三国 | Valve gear |
| CN110439681A (en) * | 2019-08-20 | 2019-11-12 | 中国重汽集团济南动力有限公司 | A kind of in-line five cylinders diesel engine |
-
2008
- 2008-08-28 CN CNA2008101957522A patent/CN101349222A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109058A (en) * | 2010-10-08 | 2013-05-15 | 博格华纳公司 | Engine breathing system valve and seal |
| US9238979B2 (en) | 2010-10-08 | 2016-01-19 | Borgwarner Inc. | Engine breathing system valve and seal |
| CN103109058B (en) * | 2010-10-08 | 2016-01-20 | 博格华纳公司 | Engine breathing system valve and Sealing |
| CN109073093A (en) * | 2016-05-17 | 2018-12-21 | 株式会社三国 | Valve gear |
| CN109073093B (en) * | 2016-05-17 | 2020-04-10 | 株式会社三国 | Valve device |
| US10738715B2 (en) | 2016-05-17 | 2020-08-11 | Mikuni Corporation | Valve device |
| CN108019562A (en) * | 2016-10-31 | 2018-05-11 | 北京精密机电控制设备研究所 | A kind of dual spring pipe armature device |
| CN110439681A (en) * | 2019-08-20 | 2019-11-12 | 中国重汽集团济南动力有限公司 | A kind of in-line five cylinders diesel engine |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090121 |