CN201714511U - electric control exhaust gas recirculation valve of integrated Venturi tube - Google Patents
electric control exhaust gas recirculation valve of integrated Venturi tube Download PDFInfo
- Publication number
- CN201714511U CN201714511U CN2010202586005U CN201020258600U CN201714511U CN 201714511 U CN201714511 U CN 201714511U CN 2010202586005 U CN2010202586005 U CN 2010202586005U CN 201020258600 U CN201020258600 U CN 201020258600U CN 201714511 U CN201714511 U CN 201714511U
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- CN
- China
- Prior art keywords
- venturi tube
- exhaust gas
- gas recirculation
- recirculation valve
- 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.)
- 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
Abstract
The utility model relates to exhaust gas recirculation valve of naturally aspirated engine or turbocharging engine, and in particular to an electronic control exhaust gas recirculation valve of integrated Venturi tube. The utility model is so constructed that an outlet of the valve portion is fixedly connected to a Venturi tube; wherein a by-pass port is disposed at the place with the minimum diameter of a through hole in the Venturi tube, the by-pass port being communicated with the through hole in the Venturi tube, the outlet of the valve portion being communicated with the by-pass port in the Venturi tube. The utility model herein overcomes deficiency of prior art technology by providing an electronic control exhaust gas recirculation valve, which can reduce flow loss of recirculation gas as they flow through the tube, and permit a much evener mixture of the recirculation exhaust gas and fresh air, and increase exhaust gas recirculation efficiency.
Description
Technical field
The utility model relates to the circulating valve that the waste gas on naturally aspirated or the turbosupercharged engine utilizes again, is meant the automatically controlled exhaust gas recirculation valve of integrated Venturi tube especially.
Background technique
EGR Technology is that diesel engine reaches one of indispensable technology of strict emission standard, and it is range limited to act on operating mode but this The Application of Technology is subjected to the influence of intake and exhaust pressure unfavourable balance.On turbosupercharged engine in the gas recirculation system of band Venturi tube, the suction tude of Venturi tube and motor be connected with the parallel connection and serial connection dual mode, and Venturi tube in parallel becomes one of most effectual way that solves diesel engine intake and exhaust pressure unfavourable balance.For further reducing diesel emission, reach strict emission control standards more, exhaust gas recirculation valve and Venturi tube combination need be changed not quite former gas handling system on the one hand, can enlarge ER EGR Rate again on the other hand.
When being installed in parallel, an exhaust gas recirculation bypass control valve (BCV) is housed on the suction tude in parallel with Venturi tube, is used to regulate the flow of Venturi tube of flowing through.Exhaust gas recirculation valve is a very important critical component in the Exhaust gas recirculation device, having on the supercharged engine of Venturi tube, it utilizes each metallic conduit that leads to Venturi tube and gas exhaust manifold to be connected with gas exhaust manifold with Venturi tube respectively usually, and the exhausted air quantity that enters intake manifold is controlled.There are following some shortcomings in such scheme: 1. be the flow loss when having increased the exhaust flow piping; 2. be that inconvenience is installed, increased the possibility of pipeline leakage; 3. be the complexity that has increased structure, strengthened cost.
Summary of the invention
The utility model overcomes the deficiency that prior art exists, a kind of flow loss when helping reducing the recirculated exhaust flow piping is provided, it is more even that the EGR gas that flows out exhaust gas recirculation valve and fresh air are mixed in Venturi tube, thereby help improving the automatically controlled exhaust gas recirculation valve of the novel integrated Venturi tube of exhaust gas recirculation efficient.
Realize above-mentioned purpose, the utility model adopts following technological scheme: a kind of automatically controlled exhaust gas recirculation valve of integrated Venturi tube, include the flexible electromagnetic control system of valve body, spool and control spool, it is characterized in that: the outlet port of described valve body is fixedly connected with Venturi tube, the position of the diameter minimum of the through hole of described Venturi tube offers by-pass hole, this by-pass hole and the conducting of Venturi tube through hole, the outlet of valve body is connected conducting with the by-pass hole of Venturi tube.
By adopting such scheme, flow loss in the time of can effectively reducing the recirculated exhaust flow piping, it is more even that the EGR gas that flows out exhaust gas recirculation valve and fresh air are mixed in Venturi tube, thereby help improving the automatically controlled exhaust gas recirculation valve of the novel integrated Venturi tube of exhaust gas recirculation efficient.After in addition exhaust gas recirculation valve and Venturi tube being integrated, connect by pipeline between from the waste pipe to the exhaust gas recirculation valve, help in the middle of this pipeline, installing cooler for recycled exhaust gas like this, so just can reduce the temperature that enters EGR gas in the exhaust gas recirculation valve, temperature is too high when avoiding the exhaust gas recirculation valve part time job, therefore can reduce the accuracy of manufacturing of exhaust gas recirculation valve part and the requirement of material, and can improve the functional reliability of exhaust gas recirculation valve
Further technological scheme of the present utility model is: be fixedly connected with connecting rod on the described spool, the other end of this connecting rod is fixedlyed connected with the magnetic core in the electromagnetic control system, is socketed with the spring that connecting rod is moved up on the described connecting rod; Be set with seat ring on the described valve body, the cooperating the conducting that constitutes valve and close of described spool and seat ring, be connected by the middle connecting plate conducting between the outlet of described valve body and the by-pass hole of Venturi tube; The by-pass hole of described Venturi tube becomes vertical setting with through hole, described middle connecting plate is cylindrical.
Below in conjunction with accompanying drawing the utility model is further specified.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment
As shown in Figure 1, a kind of automatically controlled exhaust gas recirculation valve of integrated Venturi tube, include valve body 1, spool 2 and the flexible electromagnetic control system 3 of control spool, wherein electromagnetic control system 3 is technology of comparison routine, so we have not been described in detail yet in the present embodiment, in the utility model embodiment, the outlet port 11 of described valve body 1 is fixedly connected with Venturi tube 4, the position 411 of the diameter minimum of the through hole 41 of described Venturi tube 4 offers by-pass hole 42,41 one-tenth vertical settings of this by-pass hole 42 and through hole, and with 41 conductings of Venturi tube through hole, the outlet 11 of valve body 1 is connected conducting with the by-pass hole 42 of Venturi tube 4.Certainly also can be in the present embodiment by-pass hole 42 oblique settings; Among the utility model embodiment, be connected by columniform middle connecting plate 5 conductings between the outlet 11 of described valve body 1 and the by-pass hole 42 of Venturi tube 4, its objective is that the waste gas that makes in the circulating valve all enters Venturi tube 4 and makes it and air mixing, adopt such scheme, flow loss in the time of can effectively reducing the recirculated exhaust flow piping, it is more even that the EGR gas that flows out exhaust gas recirculation valve and fresh air are mixed in Venturi tube 4, thereby help improving the automatically controlled exhaust gas recirculation valve of the novel integrated Venturi tube of exhaust gas recirculation efficient.After in addition exhaust gas recirculation valve and Venturi tube 4 being integrated, connect by pipeline between from the waste pipe to the exhaust gas recirculation valve, help in the middle of this pipeline, installing cooler for recycled exhaust gas like this, so just can reduce the temperature that enters EGR gas in the exhaust gas recirculation valve, temperature is too high when avoiding the exhaust gas recirculation valve part time job, therefore can reduce the accuracy of manufacturing of exhaust gas recirculation valve part and the requirement of material, and can improve the functional reliability of exhaust gas recirculation valve.
In the utility model is implemented, be fixedly connected with connecting rod 6 on the described spool 2, the other end of this connecting rod 6 is fixedlyed connected with the magnetic core 31 in the electromagnetic control system 3, is socketed with the spring 7 that connecting rod 6 is moved up on the described connecting rod 6; Purpose is set like this is, the degree that the sensor that install at the exhaust gas recirculation valve top can detect the exhaust gas recirculation valve valve opening exactly or cut out, and this position signal is delivered to the ECU (Electrical Control Unit) of exhaust gas recirculation valve, ECU (Electrical Control Unit) is according to this call parameter, comprehensive again other calculated signals go out best exhaust cycle amount, the electromagnetic coil of then controlling the exhaust gas recirculation valve electromagnetic control system changes the exhaust gas recirculation valve valve lift, reach best exhaust cycle amount, make the nitrogen oxide generation of diesel engine minimum, power character, economical meeting the demands.The utility model is set with seat ring 12 on the described valve body 1 in implementing, the cooperating the conducting that constitutes valve and close of described spool 2 and seat ring 12.
Claims (4)
1. the automatically controlled exhaust gas recirculation valve of an integrated Venturi tube, include the flexible electromagnetic control system of valve body, spool and control spool, it is characterized in that: the outlet port of described valve body is fixedly connected with Venturi tube, the position of the diameter minimum of the through hole of described Venturi tube offers by-pass hole, this by-pass hole and the conducting of Venturi tube through hole, the outlet of valve body is connected conducting with the by-pass hole of Venturi tube.
2. the automatically controlled exhaust gas recirculation valve of integrated Venturi tube according to claim 2, it is characterized in that: be fixedly connected with connecting rod on the described spool, the other end of this connecting rod is fixedlyed connected with the magnetic core in the electromagnetic control system, is socketed with the spring that connecting rod is moved up on the described connecting rod.
3. the automatically controlled exhaust gas recirculation valve of integrated Venturi tube according to claim 1 and 2, it is characterized in that: be set with seat ring on the described valve body, the cooperating the conducting that constitutes valve and close of described spool and seat ring, be connected by the middle connecting plate conducting between the outlet of described valve body and the by-pass hole of Venturi tube.
4. the automatically controlled exhaust gas recirculation valve of integrated Venturi tube according to claim 3, it is characterized in that: the by-pass hole of described Venturi tube becomes vertical setting with through hole, and described middle connecting plate is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202586005U CN201714511U (en) | 2010-07-09 | 2010-07-09 | electric control exhaust gas recirculation valve of integrated Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202586005U CN201714511U (en) | 2010-07-09 | 2010-07-09 | electric control exhaust gas recirculation valve of integrated Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714511U true CN201714511U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202586005U Expired - Fee Related CN201714511U (en) | 2010-07-09 | 2010-07-09 | electric control exhaust gas recirculation valve of integrated Venturi tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN201714511U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797595A (en) * | 2011-05-25 | 2012-11-28 | 广西玉柴机器股份有限公司 | Exhaust gas recirculation (EGR) system for diesel engine |
| CN103292001A (en) * | 2012-03-01 | 2013-09-11 | 温州大学 | Two-position and two-way direct operated electro-magnetic valve for sun block apparatus in automobile |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
| US10641406B2 (en) | 2016-11-30 | 2020-05-05 | Universal Flow Monitors, Inc. | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies |
| US11035483B2 (en) | 2018-02-07 | 2021-06-15 | Universal Flow Monitors, Inc. | Dual orifice venturi vacuum drawback assemblies having air breather check valve |
| US11555638B2 (en) | 2016-11-30 | 2023-01-17 | Dwyer Instruments, Llc | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies |
-
2010
- 2010-07-09 CN CN2010202586005U patent/CN201714511U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797595A (en) * | 2011-05-25 | 2012-11-28 | 广西玉柴机器股份有限公司 | Exhaust gas recirculation (EGR) system for diesel engine |
| CN103292001A (en) * | 2012-03-01 | 2013-09-11 | 温州大学 | Two-position and two-way direct operated electro-magnetic valve for sun block apparatus in automobile |
| CN109790801A (en) * | 2016-09-19 | 2019-05-21 | 康明斯有限公司 | The cast type EGR cross pipe with integral venturi for flow measurement |
| US10641406B2 (en) | 2016-11-30 | 2020-05-05 | Universal Flow Monitors, Inc. | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies |
| US11175086B2 (en) | 2016-11-30 | 2021-11-16 | Universal Flow Monitors, Inc. | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies |
| US11555638B2 (en) | 2016-11-30 | 2023-01-17 | Dwyer Instruments, Llc | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies |
| US11035483B2 (en) | 2018-02-07 | 2021-06-15 | Universal Flow Monitors, Inc. | Dual orifice venturi vacuum drawback assemblies having air breather check valve |
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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: 20110119 Termination date: 20120709 |