CN104088729A - Electric EGR valve with cooling structure - Google Patents
Electric EGR valve with cooling structure Download PDFInfo
- Publication number
- CN104088729A CN104088729A CN201410326599.8A CN201410326599A CN104088729A CN 104088729 A CN104088729 A CN 104088729A CN 201410326599 A CN201410326599 A CN 201410326599A CN 104088729 A CN104088729 A CN 104088729A
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- CN
- China
- Prior art keywords
- cooling
- egr valve
- cooling water
- water channel
- electric egr
- 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
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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 discloses an EGR valve with a cooling structure. The electric EGR valve comprises a valve body (5). A cooling water channel (6) for cooling water to flow is arranged in the valve body. The cooling water channel (6) is connected with a cooling water pipe (4), an air outlet (7) is formed in the middle of the cooling water channel, and a deflating nut (8) is assembled in the air outlet (7). The electric EGR valve with the cooling structure is simple in structure, convenient to assemble, reliable in operation and capable of effectively cooling the valve body and a power part of the electric EGR valve and improving the working reliability of the EGR valve, and the service life of the EGR valve is prolonged.
Description
Technical field
The present invention relates to engine exhaust emission control gear technical field, particularly a kind of electric EGR valve that carries cooling structure.
Background technique
Electric EGR valve plays the executive component effect that regulates EGR gas flow in engine exhaust-gas recirculating system.Electrodynamic type EGR valve is to be rotated by driven gear after electrical power, then by reducing gear, power is sent on center-pole, regulates EGR gas flow thereby drive center-pole to carry out linear reciprocating motion.In electric EGR valve when work,, owing to entering the excess Temperature of engine exhaust of valve body, the temperature that its temperature can bear considerably beyond the power section of valve own, so will carry out necessary cooling processing to engine exhaust.
At present, on market, widely used electric EGR valve self does not have refrigerating function, is all generally that the waste gas at engine exhaust pipe place enters valve body after supercooler cools, then by out entering engine aspirating system after valve regulated.Because this cooling means must be set up cooler and carried out cooling to engine exhaust between engine exhaust pipe and electric EGR valve, so just must increase the quantity of connecting tube, increase the space of motor, thereby made the structure of motor and assembling become more complicated.In addition, the leakage of cooling tube also can affect the normal operation of motor and electric EGR valve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of simple in structure, easy to assembly, reliable cooling structure electric EGR valve that carries is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
An electric EGR valve that carries cooling structure, comprises valve body, is provided with the cooling water channel of Cooling Water circulation for cooling valve body in described valve body; Described cooling water channel is connected with water-cooling tube, and cooling water channel is provided with air outlet, the equipped venting in air outlet nut.
Improvement of the present invention is: described cooling water channel is connected by the lock nut being fitted on valve body with water-cooling tube, between cooling water channel and water-cooling tube, is provided with gasket seal.
Further improvement of the present invention is: the inner circumference of described lock nut adopts tapered thread structure.
Improvement of the present invention is also: described gasket seal is red copper material.
Owing to having adopted above technological scheme, the invention technological progress is as follows.
The present invention carries cooling water structure and is directly connected with engine breathing pipe, and without increasing connecting tube, has dwindled between engine air, simplifies the structure, and has optimized assembling; The cooling water pipe structure of valve is simple, easy to assembly, with low cost, and water-cooling tube can rotate by any direction in the time of assembling, after can first water pipe direction being well placed as required, twists lock nut again.In the present invention, turn on after venting nut, the steam producing due to excess Temperature in cooling water channel will be discharged by air outlet, and it is extremely convenient to operate.In addition, most importantly the present invention has solved the problem that electric EGR valve leaks, gasket seal adopts red copper material, utilize ductility and hardness and the high temperature tolerance of material itself, add the double seal of the lock nut of tapered thread structure, the stability that has greatly strengthened electric EGR valve, has improved working life.
Brief description of the drawings
Accompanying drawing 1 is Split type structure schematic diagram of the present invention;
Accompanying drawing 2 is partial sectional view of the present invention;
The structural representation that accompanying drawing 3 is cooling water channel of the present invention.
Wherein: 1. power section, 2. gasket seal, 3. lock nut, 4. water-cooling tube, 5. valve body, 6. cooling water channel, 7. air outlet, 8. venting nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
Carry an electric EGR valve for cooling structure, its structure as depicted in figs. 1 and 2.Comprise valve body 5, in described valve body, be provided with the cooling water channel 6 of Cooling Water circulation; Cooling water channel 6 is connected with water-cooling tube 4, and cooling water channel 6 is connected by the lock nut 3 being fitted on valve body with water-cooling tube 4, and in the present embodiment, the inner circumference of lock nut adopts tapered thread structure, and excircle adopts cylindrical thread structure.Between cooling water channel 6 and water-cooling tube 4, be provided with gasket seal 2, gasket seal 2 is selected red copper material.In the middle of cooling water channel, be provided with air outlet 7, the equipped venting nut 8 in air outlet 7, as shown in Figure 3.
Before assembling of the present invention, first on valve body 5, cast out cooling water channel 6, in casting process, can carry out sand removal by air outlet 7 sand removals, casting process is very easy.Then to cooling water channel, 6 two import and export are carried out machining to coordinate with lock nut 3.Tightr for water-cooling tube 4 is coordinated with cooling water channel 6, even if also there will not be water leakage phenomenon under bad working environments, gasket seal 2 plays key effect.Gasket seal 2 materials are selected red copper, utilize ductility and hardness and the heat-resisting quantity of material itself, make sealing reach best.
When assembling, first gasket seal 2 is put into cooling water channel 6 import and exports, then water-cooling tube 4 is put into cooling water channel 6, water-cooling tube 4 is fixed direction as required to the lock nut 3 of then screwing on.Finally venting nut 8 is screwed on air outlet 7, has just completed a kind of assembling of the electric EGR valve that carries cooling structure.
In the time of a kind of electric EGR valve work that carries cooling structure, cooling water enters the cooling water channel 6 of electric EGR valve by water-cooling tube 4, in this process, the double seal of the lock nut 3 of red copper material seal pad 2 and tapered thread structure, the circulation of cooling water is sealed more, stopped the generation of electric EGR valve water leakage phenomenon.Because the temperature of engine exhaust is higher, there is air-flow phenomenon when causing part cooling water to be vaporized in cooling water channel 6, at this moment turn on venting nut 8 and just gas can be discharged by air outlet 7.The effect of passing through cooling water channel 6 power section of valve body and electric EGR valve has been played cooling down of cooling water, has strengthened the stability of electric EGR valve greatly, has improved working life.
Claims (4)
1. carry an electric EGR valve for cooling structure, comprise valve body (5), it is characterized in that: in described valve body, be provided with the cooling water channel (6) of Cooling Water circulation for cooling valve body; Described cooling water channel (6) is connected with water-cooling tube (4), and cooling water channel is provided with air outlet (7), air outlet (7) equipped venting nuts (8).
2. a kind of electric EGR valve that carries cooling structure according to claim 1, it is characterized in that: described cooling water channel (6) is connected by the lock nut (3) being fitted on valve body with water-cooling tube (4), between cooling water channel (6) and water-cooling tube (4), is provided with gasket seal (2).
3. a kind of electric EGR valve that carries cooling structure according to claim 2, is characterized in that: the inner circumference of described lock nut (3) adopts tapered thread structure.
4. a kind of electric EGR valve that carries cooling structure according to claim 2, is characterized in that: described gasket seal (2) is red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326599.8A CN104088729A (en) | 2014-07-09 | 2014-07-09 | Electric EGR valve with cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326599.8A CN104088729A (en) | 2014-07-09 | 2014-07-09 | Electric EGR valve with cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104088729A true CN104088729A (en) | 2014-10-08 |
Family
ID=51636474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410326599.8A Pending CN104088729A (en) | 2014-07-09 | 2014-07-09 | Electric EGR valve with cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104088729A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051373A (en) * | 2016-08-03 | 2016-10-26 | 无锡隆盛科技股份有限公司 | Sealing device with stepless adjustment type outside diameter |
| CN109236508A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | With the engine for extending long path EGR operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259660A (en) * | 1994-03-18 | 1995-10-09 | Honda Motor Co Ltd | Exhaust gas recirculating valve of internal combustion engine |
| EP2357350A1 (en) * | 2010-02-16 | 2011-08-17 | Kamtec Inc. | Exhaust gas recirculation valve in vehicle |
| CN203130233U (en) * | 2013-02-21 | 2013-08-14 | 广西玉柴机器股份有限公司 | Engine temperature regulator seat with degassing function |
| CN203925797U (en) * | 2014-07-09 | 2014-11-05 | 无锡隆盛科技股份有限公司 | A kind of electric EGR valve that carries cooling structure |
-
2014
- 2014-07-09 CN CN201410326599.8A patent/CN104088729A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259660A (en) * | 1994-03-18 | 1995-10-09 | Honda Motor Co Ltd | Exhaust gas recirculating valve of internal combustion engine |
| EP2357350A1 (en) * | 2010-02-16 | 2011-08-17 | Kamtec Inc. | Exhaust gas recirculation valve in vehicle |
| CN203130233U (en) * | 2013-02-21 | 2013-08-14 | 广西玉柴机器股份有限公司 | Engine temperature regulator seat with degassing function |
| CN203925797U (en) * | 2014-07-09 | 2014-11-05 | 无锡隆盛科技股份有限公司 | A kind of electric EGR valve that carries cooling structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051373A (en) * | 2016-08-03 | 2016-10-26 | 无锡隆盛科技股份有限公司 | Sealing device with stepless adjustment type outside diameter |
| CN109236508A (en) * | 2017-07-10 | 2019-01-18 | 通用汽车环球科技运作有限责任公司 | With the engine for extending long path EGR operation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |