CN202073663U - Control mechanism for exhaust gas recirculation valve - Google Patents
Control mechanism for exhaust gas recirculation valve Download PDFInfo
- Publication number
- CN202073663U CN202073663U CN2011201709604U CN201120170960U CN202073663U CN 202073663 U CN202073663 U CN 202073663U CN 2011201709604 U CN2011201709604 U CN 2011201709604U CN 201120170960 U CN201120170960 U CN 201120170960U CN 202073663 U CN202073663 U CN 202073663U
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- CN
- China
- Prior art keywords
- exhaust gas
- gas recirculation
- recirculation valve
- cylindrical shell
- tracheae
- 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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- 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 utility model discloses a control mechanism for an exhaust gas recirculation valve, which comprises a vehicle exhaust gas recirculation (EGR) cooler, an exhaust gas recirculation valve body, an exhaust gas recirculation valve sheet, a control motor and a connecting rod mechanism, wherein the front end of the vehicle EGR cooler is connected with the exhaust gas recirculation valve body which is provided with the exhaust gas recirculation valve sheet. The control mechanism for the exhaust gas recirculation valve is characterized in that the exhaust gas recirculation valve body is connected with an output end of the control motor through the connecting rod mechanism. The connecting rod mechanism comprises a driving rod, a connecting rod, a control rod and a ball-and-socket bearing assembly, wherein the driving rod is hinged with the connecting rod through the ball-and-socket bearing assembly and the connecting rod is hinged with the control rod through the ball-and-socket bearing assembly. The control mechanism for the exhaust gas recirculation valve has the advantages of controlling the exhaust gas recirculation rate more easily, being high in dynamic response performance, and lowering the cost of the control motor.
Description
Technical field
The utility model relates to the technical field that exhaust gas recirculation valve is used in the internal-combustion engine industry, specifically improve the dynamic response performance of exhaust gas recirculation valve, to adapt to the control mechanism of the exhaust gas recirculation valve that diesel engine requires the emission test of transient state industrial and mineral.
Background technique
Along with the emission controls by improving combustion technology of vehicle diesel engine is also increasingly mature, adopt exhaust gas recirculation (exhaust gas recirculation) technology can control the exhaust contaminant level of diesel engine preferably.After adopting this technology, for improving the Economy of diesel engine, egr gas need enter in the machine after supercooling again and circulate.To exhaust gas recirculation valve and control mechanism, the method that at present domestic and international supplier uses always is that exhaust gas recirculation valve and control motor are controlled as a total member, need between exhaust gas recirculation valve and motor, arrange better seal simultaneously, to control motor high temperature resistant requirement than higher.For improving the reliability of control motor, this exhaust gas recirculation valve generally can only be arranged in the outlet end of automobile-used cooler for recycled exhaust gas, be called " cold junction exhaust gas recirculation layout ", because egr gas enters exhaust gas recirculation valve again after supercooling, under the effect of micro-condensed water, nitrogen oxides from exhaust gas, particle all can produce bigger corrosion to exhaust gas recirculation valve, seal element etc., have influence on sealing and reliability.
The cold junction exhaust gas recirculation valve is arranged, because the pipeline (comprising cooler) of exhaust gas recirculation valve leading portion is long, consider the response of control mechanism again, therefore this arrangement is slow to the speed of response of egr gas control, will have influence on the emission control of diesel transient industrial and mineral.
The model utility content
The purpose of this utility model provides a kind of control mechanism of exhaust gas recirculation valve, has overcome above deficiency, is used for controlling the recirculation of waste gas, reduces the requirement discharge pollutants thereby reach, be one efficiently, the structure of high reliability.
In order to reach above-mentioned purpose of design, the technical solution adopted in the utility model is as follows:
A kind of control mechanism of exhaust gas recirculation valve, comprise automobile-used cooler for recycled exhaust gas, exhaust gas recirculation valve body, exhaust gas recirculation valve block, control motor and linkage mechanism, described automobile-used cooler for recycled exhaust gas front end connects the exhaust gas recirculation valve body, on the described exhaust gas recirculation valve body exhaust gas recirculation valve block is set, it is characterized in that: described exhaust gas recirculation valve body is connected to the output terminal of control motor by linkage mechanism; Described linkage mechanism comprises driveshaft, connecting rod, operating handle, ball-and-socket bearing assembly, by the ball-and-socket bearing member hinges, passes through the ball-and-socket bearing member hinges between connecting rod and the operating handle between driveshaft and the connecting rod.
Described automobile-used cooler for recycled exhaust gas comprises cylindrical shell, crosses tracheae, turnover water pipe, flange plate, at least two equally distributed tracheaes of crossing vertically are set in the described cylindrical shell, crossing the tracheae end fixes on the mainboard of cylindrical shell internal fixation, the described tracheae of crossing communicates with the port of cylindrical shell, the gap of crossing between the tracheae in the described cylindrical shell forms hydroecium, hydroecium is by being arranged on the external recirculated cooling water of turnover water pipe on the cylindrical shell, hydroecium is by the mainboard sealing of end, and the end of described cylindrical shell is provided with to connect uses flange plate.
The beneficial effect of the control mechanism of exhaust gas recirculation valve described in the utility model is: after adopting exhaust gas recirculation valve directly to be installed on tracheae, before the cooler, pipeline is shorter, the outer wall of crossing tracheae is provided with continuous thread groove, and the gap of crossing between the tracheae forms hydroecium, the easier control of ER EGR Rate, the dynamic response performance height, control motor and circuit can reduce the requirement to resistance to high temperature away from the layout of exhaust gas recirculation valve body, have also reduced the cost of control motor.
Description of drawings
Fig. 1 is the schematic representation of the control mechanism of the described exhaust gas recirculation valve of the utility model embodiment;
Fig. 2 is the schematic representation of automobile-used cooler for recycled exhaust gas of the control mechanism of the described exhaust gas recirculation valve of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the utility model is described in further detail.
As shown in Figure 1, the control mechanism of the described exhaust gas recirculation valve of the utility model embodiment, comprise automobile-used cooler for recycled exhaust gas 1, exhaust gas recirculation valve body 2, exhaust gas recirculation valve block 3, control motor 4 and linkage mechanism, described automobile-used cooler for recycled exhaust gas 1 front end flange connects exhaust gas recirculation valve body 2, on the described exhaust gas recirculation valve body 2 exhaust gas recirculation valve block 3 is set, described exhaust gas recirculation valve body 2 is connected to the output terminal of control motor 4 by linkage mechanism; Described linkage mechanism comprises driveshaft 5, connecting rod 6, operating handle 7, ball-and-socket bearing assembly 8, and is hinged by ball-and-socket bearing assembly 8 between driveshaft 5 and the connecting rod 6, hinged by ball-and-socket bearing assembly 8 between connecting rod 6 and the operating handle 7; Described ball-and-socket bearing assembly 8 has the aligning effect, can remedy the positioning tolerance that exists between connecting rod 6, the operating handle 7 preferably, has strengthened the flexibility of connecting rod 6 motions; Described control motor 4 is a stepper motor, itself has control circuit motor, can under the control of engine electronic control unit (ECU), work, because the gap is very little between each joint, therefore the action of stepper motor can immediate response to exhaust gas recirculation valve block 3, speed of response is very fast, with the requirement of the transient state industrial and mineral that is adapted to motor.
As shown in Figure 2, described automobile-used cooler for recycled exhaust gas 1 comprises cylindrical shell 11, cross tracheae 12, turnover water pipe 14, flange plate 16, at least two equally distributed tracheaes 12 of crossing vertically are set in the described cylindrical shell 11, crossing tracheae 12 ends fixes on the mainboard 15 of cylindrical shell 11 internal fixation, the described tracheae 12 of crossing communicates with the port of cylindrical shell 11, the gap of crossing between the tracheae 12 in the described cylindrical shell 11 forms hydroecium 13, hydroecium 13 is by being arranged on the turnover water pipe 14 external recirculated cooling waters on the cylindrical shell 11, hydroecium 13 is by mainboard 15 sealings of end, the end of described cylindrical shell 11 is provided with and connects with flange plate 16, by flange plate 16 external automotive emission pipe of difference and engine air inlet tubes; Form an air chamber 17 between the mainboard 15 of the end of described flange plate 16 and mistake tracheae 12 and be used for uniform distribution tail gas in crossing tracheae 12.
The described outer wall of crossing tracheae 12 is provided with continuous thread groove 18, with the increase heat exchange area, and is beneficial to cooling-water flow, simultaneously up to the anti-effect of stopping up.
This embodiment preferred embodiment only of the present utility model can not limit the utility model, and concrete every rights protection scope is defined by the claims.
Claims (4)
1. the control mechanism of an exhaust gas recirculation valve, comprise automobile-used cooler for recycled exhaust gas, exhaust gas recirculation valve body, exhaust gas recirculation valve block, control motor and linkage mechanism, described automobile-used cooler for recycled exhaust gas front end connects the exhaust gas recirculation valve body, on the described exhaust gas recirculation valve body exhaust gas recirculation valve block is set, it is characterized in that: described exhaust gas recirculation valve body is connected to the output terminal of control motor by linkage mechanism; Described linkage mechanism comprises driveshaft, connecting rod, operating handle, ball-and-socket bearing assembly, by the ball-and-socket bearing member hinges, passes through the ball-and-socket bearing member hinges between connecting rod and the operating handle between driveshaft and the connecting rod.
2. the control mechanism of exhaust gas recirculation valve according to claim 1, it is characterized in that: described automobile-used cooler for recycled exhaust gas comprises cylindrical shell, cross tracheae, turnover water pipe, flange plate, at least two equally distributed tracheaes of crossing vertically are set in the described cylindrical shell, crossing the tracheae end fixes on the mainboard of cylindrical shell internal fixation, the described tracheae of crossing communicates with the port of cylindrical shell, the gap of crossing between the tracheae in the described cylindrical shell forms hydroecium, hydroecium is by being arranged on the external recirculated cooling water of turnover water pipe on the cylindrical shell, hydroecium is by the mainboard sealing of end, and the end of described cylindrical shell is provided with to connect uses flange plate.
3. the control mechanism of exhaust gas recirculation valve according to claim 2 is characterized in that: form an air chamber between the mainboard of the end of described flange plate and mistake tracheae.
4. according to the control mechanism of claim 2 or 3 described exhaust gas recirculation valve, it is characterized in that: the described outer wall of crossing tracheae is provided with continuous thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201709604U CN202073663U (en) | 2011-05-26 | 2011-05-26 | Control mechanism for exhaust gas recirculation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201709604U CN202073663U (en) | 2011-05-26 | 2011-05-26 | Control mechanism for exhaust gas recirculation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073663U true CN202073663U (en) | 2011-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201709604U Expired - Fee Related CN202073663U (en) | 2011-05-26 | 2011-05-26 | Control mechanism for exhaust gas recirculation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121117A (en) * | 2013-04-25 | 2014-10-29 | 通用汽车环球科技运作有限责任公司 | Exhaust gas recirculation cooler, system, and method thereof |
-
2011
- 2011-05-26 CN CN2011201709604U patent/CN202073663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121117A (en) * | 2013-04-25 | 2014-10-29 | 通用汽车环球科技运作有限责任公司 | Exhaust gas recirculation cooler, system, and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120526 |