CN205477993U - Control by temperature change EGR valve - Google Patents
Control by temperature change EGR valve Download PDFInfo
- Publication number
- CN205477993U CN205477993U CN201620276248.5U CN201620276248U CN205477993U CN 205477993 U CN205477993 U CN 205477993U CN 201620276248 U CN201620276248 U CN 201620276248U CN 205477993 U CN205477993 U CN 205477993U
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- China
- Prior art keywords
- egr valve
- valve
- flange
- exhaust gas
- egr
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- 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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Abstract
The utility model relates to a control by temperature change EGR valve. It can not control warm problem mainly to have solved the EGR valve. EGR valve body is close to air inlet department and is equipped with temperature sensor, be equipped with coolant liquid import and cooling liquid exit on the cooler, coolant liquid import department installs the valve, be equipped with the bellows on the connecting pipe, valve and temperature sensor all link to each other with vehicle ECU. This control by temperature change EGR valve sealing performance is good, can the effective control the gaseous temperature of EGR valve, can avoid the too high ablation EGR valve because of gas temperature, also can avoid because of gas temperature is low excessively, and in the EGR valve body the too much deadlocked thing of deposit, make the EGR valve produce the jamming phenomenon, make the inefficacy of whole EGR system, this equipment cost is cheap, and is practical convenient, process effectual, non -staining environment, easily popularization.
Description
Technical field
This utility model relates to a kind of EGR valve, is specifically related to a kind of coolant controlled exhaust gas recirculation valve.
Background technology
Gas recirculation system (Exhaust Gas Recirculation) is called for short EGR, is that electromotor will import, after the part cooling of expellant gas, the technology that inlet manifold makes it burn once again after burning.Cooling system for recycled exhaust gas is one of critical component of egr system, and the temperature of motor exhaust is generally 450 degree of-700 degree, needs to be cooled to ability within the scope of certain temperature
Give full play to the efficiency of electromotor and reduce the discharge of dusty gas to greatest extent.
The EGR cooler used on the market at present there is problems in that electromotor expellant gas temperature and flow are as the change of operating mode and change, but the cooler of EGR valve cannot adjust cooling capacity according to practical situation at present, thus results in gas temperature too high or too low.And if temperature is too high, will the electric part of EGR valve of ablation, also can improve the intake air temperature of electromotor, if gas temperature is too low, can deposit gum deposit thing and carbon distribution in EGR valve body, EGR valve assembles too much gum deposit thing can produce catching phenomenon, making whole egr system lose efficacy, discharge exceeds standard.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides a kind of coolant controlled exhaust gas recirculation valve, mainly solving EGR valve can not the problem of temperature control, this coolant controlled exhaust gas recirculation valve good seal performance, can effectively control the temperature of EGR air valve body, ablation EGR valve can be avoided because gas temperature is too high, can also avoid because gas temperature is too low, and in EGR valve body, deposit too much deadlocked thing, make EGR valve produce catching phenomenon, make the inefficacy of whole egr system, this equipment cost is cheap, practical and convenient, and processing effect is good, free from environmental pollution, it is easy to promote.
This utility model be the technical scheme is that a kind of coolant controlled exhaust gas recirculation valve, including EGR valve body, connecting tube and cooler, described EGR valve body is provided with temperature sensor at air inlet, described cooler is provided with cooling liquid inlet and cooling liquid outlet, valve is installed at cooling liquid inlet, described connecting tube is provided with corrugated tube, and described valve is all connected with vehicle ECU with temperature sensor.
Further, described temperature sensor is contact type temperature sensor.
Further, described valve is flow solenoid valve.
Further, described connecting tube includes the first flange and the second flange being located at connecting tube two ends, described first flange is connected with the air inlet of EGR valve body, described second flange is connected with cooler gas outlet, described first flange and the second flange are one-body molded with connecting tube, and the first described flange and the second flange are provided with fluting, are provided with sealing ring in fluting, described sealing ring is made up of silicone rubber, and the degree of depth of described fluting is less than the thickness of sealing ring.
Further, described corrugated tube is hose connector, is made up of silicone rubber.
Further, described EGR valve body is automatically controlled linear EGR valve body.
Further, being provided with air filter at described cooler air inlet, described cooler air inlet is connected with automobile gas exhausting manifold branch.
The beneficial effects of the utility model are: owing to taking technique scheme, this coolant controlled exhaust gas recirculation valve good seal performance,
Can effectively control the temperature of EGR gas, ablation EGR valve can be avoided because gas temperature is too high, can also avoid because gas temperature is too low, and in EGR valve body, deposit too much deadlocked thing, make EGR valve produce catching phenomenon, make the inefficacy of whole egr system, this equipment cost is cheap, practical and convenient, and processing effect is good, free from environmental pollution, it is easy to promote.Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of the first flange 9 in Fig. 1.
In figure 1, EGR valve body；2, connecting tube；3, cooler；4, temperature sensor；5, cooling liquid inlet；6, cooling liquid outlet；7, valve；8, corrugated tube；9, the first flange；10, the second flange；11, sealing ring；12, fluting；13 air filters.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further.
As shown in Figure 1 with Figure 2, a kind of coolant controlled exhaust gas recirculation valve includes EGR valve body 1, connecting tube 2 and cooler 3, described EGR valve body 1 is provided with temperature sensor 4 at air inlet, described cooler 3 is provided with cooling liquid inlet 5 and cooling liquid outlet 6, valve 7 is installed at cooling liquid inlet 5, described connecting tube 2 is provided with corrugated tube 8, and described valve 7 is all connected with vehicle ECU with temperature sensor 4.
Preferably, described temperature sensor 4 is contact type temperature sensor, uses contact type temperature sensor 4, and certainty of measurement is higher, and what energy was more efficient feeds back to ECU temperature signal.
Preferably, described valve 7 is flow solenoid valve, and flow solenoid valve can be controlled by automatically controlled signal, so can send control signal by ECU and carry out the aperture size of control valve 7, thus realize automatically controlling of EGR gas temperature.
Preferably, described connecting tube 2 includes the first flange 9 and the second flange 10 being located at connecting tube 2 two ends, described first flange 9 is connected with the air inlet of EGR valve body 1, described second flange 10 is connected with cooler 3 gas outlet, described first flange 9 and the second flange 10 are one-body molded with connecting tube 2, the first described flange 9 and the second flange 10 are provided with fluting 12, in fluting 12, sealing ring 11 is installed, described sealing ring 11 is made up of silicone rubber, the degree of depth of described fluting 12 is less than the thickness of sealing ring 11, interface flange seals, add the sealing function of sealing ring 11 to reach the effect of dual-seal, on the basis of the design of integration can have enough tightnesses ensureing connecting tube 2, save processing cost further, be conducive to producing manufacture in enormous quantities.
Preferably, described corrugated tube 8 is hose connector, is made up of silicone rubber, and the corrugated tube 8 of silicone rubber can not only be high temperature resistant, also has the strongest retractility and elasticity, is not only convenient for installing and safeguards, saves the space of installation especially.
Preferably, described EGR valve body 1 is automatically controlled linear EGR valve body.
Preferably, it is provided with air filter 13 at described cooler 3 air inlet, described cooler 3 air inlet is connected with automobile gas exhausting manifold branch, air filter 13 can filter out most granule in tail gas, improve the cleannes of tail gas to a certain extent, reduce valve blockage and pollute the probability of electromotor.
Its work process is as described below:
Automatic control process is as follows: when electromotor operates under a load, EGR valve is opened, a small amount of waste gas is made to enter cooler 3, first pass through temperature sensor 4 and carry out the actual temperature of detected gas, feed back to ECU, ECU and gas actual temperature is contrasted with temperature required, valve 7 is sent a control signal to further according to comparing result, the aperture of valve 7 is adjusted, thus regulates the actual temperature of gas, until actual temperature reaches temperature required value.
This coolant controlled exhaust gas recirculation valve good seal performance, can effectively control the temperature of EGR gas, can avoid damaging because gas temperature is too high EGR valve, it is also possible to avoid because gas temperature is too low, and in EGR valve body, deposit too much deadlocked thing, making EGR valve produce catching phenomenon, make the inefficacy of whole egr system, this equipment cost is cheap, practical and convenient, processing effect is good, free from environmental pollution, it is easy to promote.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention; but invention thought of the present utility model is not limited to that utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (7)
1. a coolant controlled exhaust gas recirculation valve, including EGR valve body, connecting tube and cooler, it is characterized in that: described EGR valve body is provided with temperature sensor at air inlet, described cooler is provided with cooling liquid inlet and cooling liquid outlet, valve is installed at cooling liquid inlet, described connecting tube is provided with corrugated tube, and described valve is all connected with vehicle ECU with temperature sensor.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterised in that: described temperature sensor is contact type temperature sensor.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterised in that: described valve is flow solenoid valve.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterized in that: described connecting tube includes being located at the first flange and second flange at connecting tube two ends, described first flange is connected with the air inlet of EGR valve body, described second flange is connected with cooler gas outlet, described first flange and the second flange are one-body molded with connecting tube, the first described flange and the second flange are provided with fluting, sealing ring is installed in fluting, described sealing ring is made up of silicone rubber, and the degree of depth of described fluting is less than the thickness of sealing ring.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterised in that: described corrugated tube is hose connector, is made up of silicone rubber.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterised in that: described EGR valve body is automatically controlled linear EGR valve body.
Coolant controlled exhaust gas recirculation valve the most according to claim 1, it is characterised in that: being provided with air filter at described cooler air inlet, described cooler air inlet is connected with automobile gas exhausting manifold branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276248.5U CN205477993U (en) | 2016-04-01 | 2016-04-01 | Control by temperature change EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276248.5U CN205477993U (en) | 2016-04-01 | 2016-04-01 | Control by temperature change EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477993U true CN205477993U (en) | 2016-08-17 |
Family
ID=56647111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620276248.5U Expired - Fee Related CN205477993U (en) | 2016-04-01 | 2016-04-01 | Control by temperature change EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217681A (en) * | 2022-07-29 | 2022-10-21 | 潍柴动力股份有限公司 | Control method of EGR system, vehicle and storage medium |
| CN115217681B (en) * | 2022-07-29 | 2024-05-17 | 潍柴动力股份有限公司 | Control method of EGR system, vehicle and storage medium |
-
2016
- 2016-04-01 CN CN201620276248.5U patent/CN205477993U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217681A (en) * | 2022-07-29 | 2022-10-21 | 潍柴动力股份有限公司 | Control method of EGR system, vehicle and storage medium |
| CN115217681B (en) * | 2022-07-29 | 2024-05-17 | 潍柴动力股份有限公司 | Control method of EGR system, vehicle and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190401 |