CN204060980U - A kind of cooler for recycled exhaust gas water flow control device - Google Patents
A kind of cooler for recycled exhaust gas water flow control device Download PDFInfo
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- CN204060980U CN204060980U CN201420457336.6U CN201420457336U CN204060980U CN 204060980 U CN204060980 U CN 204060980U CN 201420457336 U CN201420457336 U CN 201420457336U CN 204060980 U CN204060980 U CN 204060980U
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- cooler
- intake pipe
- exhaust gas
- pressure intake
- egr
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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 discloses a kind of cooler for recycled exhaust gas water flow control device, comprise the cooler that EGR gas is cooled, the water intake of described cooler is connected with engine water pump by high-pressure intake pipe, described high-pressure intake pipe also connects a low pressure intake pipe be connected with engine water outlet, is provided with one for controlling to enter the elastic mechanism of described water intake inner cooling water flow between described high-pressure intake pipe and described low pressure intake pipe.Reasonably control the flow entering cooler inner cooling water, and then achieve the temperature of conservative control EGR waste gas, can ensure that motor is in the not super upper limit of high-speed high-load operating mode EGR exhaust gas temperature, can ensure again to be not less than lower limit in low speed and load EGR exhaust gas temperature, and then ensure that reliability and the Security of electric control EGR valve seat, meanwhile, avoid cooler gum deposit at low temperatures, and then extend the working life of motor tapping equipment.
Description
Technical field
The utility model relates to technical field of engines, particularly relates to a kind of cooler for recycled exhaust gas water flow control device.
Background technique
At present, adopt electric control EGR (Exhaust Gas Recycling EGR) technology to reach the motor of emission request, mostly need cooling EGR waste gas.EGR waste gas gets gas before turbine, and because exhaust gas temperature is very high, and electric control EGR valve needs control temperature to be no more than 200 DEG C, therefore need cooling EGR waste gas, under high-speed high-load operating mode, temperature is higher, and flow is larger, and temperature is lower under low speed and load, flow is less.In order to ensure to be no more than the reliable temperature of electric control EGR valve in high-speed high-load operating mode by the EGR exhaust gas temperature of cooler for recycled exhaust gas, need to design the cooler for recycled exhaust gas with stronger cooling capacity, may cause like this in low speed and load operating mode, EGR exhaust gas temperature is too low, and, the cooler for recycled exhaust gas of same piece number may be used for the type of different capacity burden requirement, for ensureing the not super requirement of maximum type EGR exhaust gas temperature, little type EGR exhaust gas temperature will certainly be caused on the low side, and due to oil product sulphur content more, low temperature can cause the gum deposit of cooler for recycled exhaust gas, low temperature gum deposit can corrode cooler for recycled exhaust gas, reduce the cooling effect of cooler for recycled exhaust gas, when deteriorating into a certain degree, EGR exhaust gas temperature can be caused to exceed the reliable serviceability temperature of electric control EGR valve (200 DEG C) at Part load, thus make electric control EGR system service life reduction, affect the working life of exhaust apparatus.
Model utility content
Technical problem to be solved in the utility model is: provide a kind of cooler for recycled exhaust gas water flow control device, to reach the cooling effect that can ensure high-speed high-load EGR, can ensure that again the EGR exhaust gas temperature of low speed and load is not less than gum deposit temperature, thus extend the effect in EGR exhaust apparatus working life.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of cooler for recycled exhaust gas water flow control device, comprise the cooler that EGR gas is cooled, the water intake of described cooler is connected with engine water pump by high-pressure intake pipe, described high-pressure intake pipe also connects a low pressure intake pipe be connected with engine water outlet, is provided with one for controlling to enter the elastic mechanism of described water intake inner cooling water flow between described high-pressure intake pipe and described low pressure intake pipe.
Improve as one, described elastic mechanism comprises the hollow position limit socket be arranged in described high-pressure intake pipe, described hollow position limit socket is set with elastic element, and one end of described elastic element leans on described high-pressure intake pipe, and the other end of described elastic element has leaned slide block.
As further improvement, the wall thickness direction of described hollow position limit socket is provided with the through hole of the described high-pressure intake pipe of some connections.
As further improving, described slide block is provided with an arc notch away from one end of described hollow position limit socket, the cross-sectional length of described slide block near described water intake side is less than the cross-sectional length of described slide block away from described water intake side.
As further improving again, described slide block is provided with seal element.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
Owing to being provided with one between high-pressure intake pipe and low pressure intake pipe for controlling to enter the elastic mechanism of water intake inner cooling water flow, thus in high-speed high-load operating mode, elastic mechanism two ends pressure reduction is larger, water pressure pushing elastic mechanism moves to away from water intake direction, increase into water area, and then decrease the throttling action that slide block intakes to cooler, achieve the cooling water flow loss reduction by water intake, simultaneously, when elastic mechanism two ends pressure reduction increases to certain value, slide block withstands position limit socket, ensure that the throttling action that slide block is intake to cooler is minimum, and then ensure at high-speed high-load minimum to cooling water mitigation, serve the effect that the waste gas higher to temperature cools, prevent the EGR exhaust gas temperature of cooler from exceeding the reliable temperature of electric control EGR valve, when in low speed and load operating mode, elastic mechanism two ends pressure reduction reduces, thus elastic mechanism moves to water intake direction, and then it is less and carry out throttling to cooler to realize water inlet area, thus reduction enters the cooling water flow of cooler, effectively increases the EGR exhaust gas temperature of low speed and load, extend the cooling effect of cooler, simultaneously in the EGR exhaust gas temperature that low speed and load is higher, the intake temperature of motor can be promoted, be beneficial to bavin oil atomization and burning.In sum, adopt this device, reasonably control the flow entering cooler cooling water, thus achieve the temperature of conservative control EGR waste gas, can ensure that motor is in the not super upper limit of high-speed high-load operating mode EGR exhaust gas temperature, can ensure again to be not less than lower limit in low speed and load EGR exhaust gas temperature, and then ensure that reliability and the Security of electric control EGR valve seat, meanwhile, avoid cooler gum deposit at low temperatures, and then extend the working life of motor tapping equipment.
Because limited part is provided with hollow position limit socket, and elastic element is sleeved on described hollow position limit socket, thus under the prerequisite not affecting normal work, the displacement of slide block is limited by hollow position limit socket, prevent displacement excessive and cause the excessive fatigue of elastic element, and then improve the working life of elastic element.
Because the wall thickness direction of hollow position limit socket is provided with some through holes, thus ensure the stability of slide block pressure at two ends, prevent pressure excessive or too small, cause slider displacement excessive or too small, and the normal work of impact.
Because slide block is provided with an arc notch, thus decrease by breach cooling water to enter water intake resistance from high-pressure intake pipe, meanwhile, guide functions is served to the current of cooling water, improve the stability of equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged view of A in Fig. 1;
In figure: 1, high-pressure intake pipe, 2, water intake, 3, EGR gas import, 4, water outlet, 5, EGR gas outlet, 6, cooler internal ventilation pipe, 7, low pressure intake pipe, 8, elastic element, 9, slide block, 10, cooler, 11, hollow position limit socket, 12, limited part, 13, breach, 14, seal element.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Fig. 1 and Fig. 2 jointly shown in, a kind of cooler for recycled exhaust gas water flow control device comprises the cooler 10 cooled EGR gas, the two ends of this cooler 10 are respectively equipped with EGR gas import 3 and EGR gas outlet 5, the inside of this cooler 10 is provided with cooler internal ventilation pipe 6, the top of this cooler 10 is provided with cooler water outlet 4, and the water intake 2 of this cooler 10 is connected with engine water pump by high-pressure intake pipe 1; This high-pressure intake pipe 1 also connects a low pressure intake pipe 7 be connected with engine water outlet, this low pressure intake pipe 7 can also be connected with cooler water outlet 4 or be connected with the position before water feeding of water pump, as preferably, this low pressure intake pipe 7 is connected with engine water pump water absorbing section, is provided with one for controlling to enter the elastic mechanism of water intake 2 inner cooling water flow between this high-pressure intake pipe 1 and low pressure intake pipe 7.
This elastic mechanism comprises the hollow position limit socket 11 be arranged in high-pressure intake pipe 1, the wall thickness direction of this hollow position limit socket 11 is provided with the through hole of some connection high-pressure intake pipes 1, and this hollow position limit socket 11 is set with elastic element 8, this elastic element is preferably Compress Spring, one end of this Compress Spring leans on high-pressure intake pipe 1, the other end of this Compress Spring has leaned slide block 9, and this slide block 9 is provided with seal element 14, and sealing element 14 is seal ring or seal ring.
This slide block 9 is provided with an arc notch 13 away from one end of hollow position limit socket 11, the cross-sectional length of this slide block 9 near water intake 2 side is less than the cross-sectional length of slide block 9 away from water intake 2 side, thus the arc notch 13 realizing slide block 9 is in the middle of the water intake 2 of cooler 10, when fed water has a high pressure, elastic element 8 compresses, and slide block 9 does not affect the water flow of cooler 10, when fed water has a low pressure, elastic element 8 decrement reduces, and reduces the water flow entering cooler 10.
In actual applications, when in high-speed high-load operating mode, slide block 9 two ends pressure reduction is larger, water pressure pushing slide block 9 overcomes the tension force of Compress Spring and moves to the direction away from water intake 2, increase into water area, and then decrease the throttling action of slide block 9 pairs of coolers 10 water inlets, achieve the cooling water flow loss reduction by water intake, simultaneously, when slide block 9 two ends pressure reduction increases to certain value, slide block 9 withstands hollow position limit socket 11, ensure that the throttling action that slide block 9 pairs of coolers 10 are intake is minimum, and then ensure at high-speed high-load minimum to cooling water mitigation, serve the effect that the waste gas higher to temperature cools, prevent the EGR exhaust gas temperature of cooler 10 from exceeding the reliable temperature of electric control EGR valve, when in low speed and load operating mode, slide block 9 two ends pressure reduction reduces, thus move to water intake 2 direction at the effect bottom slide block 9 of Compress Spring, and then it is less and carry out throttling to cooler 10 to realize water inlet area, thus reduction enters the cooling water flow of cooler 10, effectively increases the EGR exhaust gas temperature of low speed and load, extend the cooling effect of cooler, simultaneously in the EGR exhaust gas temperature that low speed and load is higher, improve the intake temperature of motor, be beneficial to bavin oil atomization and burning.In sum, adopt this device, reasonably control the cooling water flow entering cooler 10, thus realize the temperature of conservative control EGR waste gas, can ensure that motor is in the not super upper limit of high-speed high-load operating mode EGR exhaust gas temperature, can ensure again to be not less than lower limit in low speed and load EGR exhaust gas temperature, and then ensure that reliability and the Security of electric control EGR valve seat, meanwhile, avoid cooler 10 gum deposit at low temperatures, thus extend the working life of motor tapping equipment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a cooler for recycled exhaust gas water flow control device, comprise the cooler (10) that EGR gas is cooled, it is characterized in that: the water intake (2) of described cooler (10) is connected with engine water pump by high-pressure intake pipe (1), described high-pressure intake pipe (1) also connects a low pressure intake pipe (7) be connected with engine water outlet, is provided with one for controlling to enter the elastic mechanism of described water intake (2) inner cooling water flow between described high-pressure intake pipe (1) and described low pressure intake pipe (7).
2. a kind of cooler for recycled exhaust gas water flow control device according to claim 1, it is characterized in that: described elastic mechanism comprises the hollow position limit socket (11) be arranged in described high-pressure intake pipe (1), described hollow position limit socket (11) is set with elastic element (8), one end of described elastic element (8) leans on described high-pressure intake pipe, and the other end of described elastic element has leaned slide block (9).
3. a kind of cooler for recycled exhaust gas water flow control device according to claim 2, is characterized in that: the wall thickness direction of described hollow position limit socket (11) is provided with the through hole of the described high-pressure intake pipe of some connections (1).
4. a kind of cooler for recycled exhaust gas water flow control device according to the arbitrary claim of claim 1-3, it is characterized in that: described slide block (9) is provided with an arc notch (13) away from one end of described hollow position limit socket (11), the cross-sectional length of described slide block (9) near described water intake (2) side is less than the cross-sectional length of described slide block (9) away from described water intake (2) side.
5. a kind of cooler for recycled exhaust gas water flow control device according to claim 4, is characterized in that: described slide block (9) is provided with seal element (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457336.6U CN204060980U (en) | 2014-08-13 | 2014-08-13 | A kind of cooler for recycled exhaust gas water flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457336.6U CN204060980U (en) | 2014-08-13 | 2014-08-13 | A kind of cooler for recycled exhaust gas water flow control device |
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| Publication Number | Publication Date |
|---|---|
| CN204060980U true CN204060980U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420457336.6U Active CN204060980U (en) | 2014-08-13 | 2014-08-13 | A kind of cooler for recycled exhaust gas water flow control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010593A1 (en) * | 2016-07-15 | 2018-01-18 | 联合汽车电子有限公司 | Egr cooler |
| CN112377300A (en) * | 2020-12-01 | 2021-02-19 | 广西玉柴机器股份有限公司 | Method and system for inhibiting natural gas engine detonation combustion |
| CN113464325A (en) * | 2021-08-06 | 2021-10-01 | 无锡同益汽车动力技术有限公司 | Novel EGR cooler |
-
2014
- 2014-08-13 CN CN201420457336.6U patent/CN204060980U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010593A1 (en) * | 2016-07-15 | 2018-01-18 | 联合汽车电子有限公司 | Egr cooler |
| CN107620656A (en) * | 2016-07-15 | 2018-01-23 | 联合汽车电子有限公司 | Cooler for recycled exhaust gas |
| CN112377300A (en) * | 2020-12-01 | 2021-02-19 | 广西玉柴机器股份有限公司 | Method and system for inhibiting natural gas engine detonation combustion |
| CN113464325A (en) * | 2021-08-06 | 2021-10-01 | 无锡同益汽车动力技术有限公司 | Novel EGR cooler |
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| C14 | Grant of patent or utility model | ||
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