CN202370644U - Sub water tank for engine cooling system and engine cooling system - Google Patents
Sub water tank for engine cooling system and engine cooling system Download PDFInfo
- Publication number
- CN202370644U CN202370644U CN2011205267792U CN201120526779U CN202370644U CN 202370644 U CN202370644 U CN 202370644U CN 2011205267792 U CN2011205267792 U CN 2011205267792U CN 201120526779 U CN201120526779 U CN 201120526779U CN 202370644 U CN202370644 U CN 202370644U
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- water tank
- secondary water
- casing
- radiator
- engine
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Abstract
The utility model discloses a sub water tank for an engine cooling system and the engine cooling system. The sub water tank comprises a tank body, a circulation opening, an air opening, a filling opening and a filling cover, wherein the circulation opening is formed at the lower part of the tank body, the air opening is formed at the upper part of the tank body, the filling opening is formed on the tank body, and the filling cover seals the filling opening, the part of the tank body forming the circulation opening is provided with a conical structure with the dimension gradually reduced towards the circulation opening. Because the part from the cross section the tank body to the circulation opening part is reduced to the minimum, the air sealing of the circulation opening can be realized only through little cooling liquid. Therefore, when the liquid level of the cooling liquid in the tank body is lower than the lowest warning liquid level but cannot be supplemented in time, a cone structure can also ensure the air in the tank body not to enter an engine or a heat radiator even when the cooling liquid in the tank body swings through the running bumping of vehicles.
Description
Technical field
The utility model relates to engine art, more particularly, relates to a kind of secondary water tank and the engine-cooling system that comprises this pair water tank that is used for engine-cooling system.
Background technique
The effect of engine-cooling system is the part heat absorption that produces when motor is moved and in time distributes, thereby makes the parts of motor obtain the cooling of appropriateness, and motor is worked in suitable temperature range.
Usually, engine-cooling system comprises radiator (being also referred to as water tank), water pump, fan, thermostat, temperature transducer and water jacket etc.In engine operation process, coolant temperature in the engine-cooling system rises, thus expanded by heating, and when like motor when out of service, the coolant temperature decline in the engine-cooling system, volume reduces.In order to adapt to this change in volume of cooling liquid in the engine-cooling system; Usually in engine-cooling system, also be provided with the secondary water tank (being also referred to as swelling water tank) that communicates with radiator, the cooling liquid when expanding with heat and contract with cold to provide an additional space to be used for holding changes.
Specifically, when the cooling liquid volume in the engine-cooling system became big, the part cooling liquid can flow in the secondary water tank and store; And when coolant temperature descended, the cooling liquid in the secondary water tank then can be automatically again in the inflow radiator, to replenish.When needs replenish the cooling liquid in the engine-cooling system, also can cooling liquid be injected secondary water tank.
Shown in Figure 1 is the schematic representation that comprises the engine-cooling system of traditional secondary water tank.This engine-cooling system comprises: motor 100, radiator 200 and secondary water tank 300; Wherein, Motor 100 comprises engine water inlet 110, motor water outlet 120 and motor air outlet 130; Radiator 200 comprises water inlet of radiator 210, radiator outlet 220 and radiator air outlet 230, and secondary water tank 300 comprises filler 310, communication port 320 and gas port 330, and engine water inlet 110 communicates with radiator outlet 220 with the communication port 320 of secondary water tank respectively; Motor water outlet 120 communicates with water inlet of radiator 210, and the gas port 330 of secondary water tank communicates with motor air outlet 130 and radiator air outlet 230 respectively.
In engine-cooling system shown in Figure 1; Cooling liquid in the secondary water tank gets into the in-engine cooling line through engine water inlet 110 from the communication port 320 of secondary water tank; Start the higher cooling liquid of built-in temperature to get into the radiator 200 through water inlet of radiator 210 from motor water outlet 120;, flow back into the motor through engine water inlet 110 from radiator outlet 220 again with after obtaining relatively low temperature through heat radiation.
When the cooling liquid Yin Wendu in the engine-cooling system raises and during volumetric expansion, cooling liquid can flow into through the communication port 320 of secondary water tank in the secondary water tank 300, should hold a part of cooling liquid by pair water tank 300 to utilize.When recovering the script volume when the reduction of the cooling liquid Yin Wendu in the engine-cooling system, then cooling liquid will reflux through this communication port 320.
In addition, when motor moves,, thereby can in cooling liquid, produce gas owing to the cooling liquid in the cooling system is heated.The gas that cooling liquid was produced in (as at radiator 200 and motor 100) will flow to the gas port 330 of secondary water tank through radiator air outlet 230 and motor air outlet 130 respectively, thereby get in the secondary water tank 300.When the gas pressure in the secondary water tank 300 surpasses predetermined value, the pressure-relief valve that is assemblied in the pressure cover on the filler 310 of secondary water tank 300 will be opened, to discharge unnecessary gas.
Yet this existing secondary water tank exists following defective:
At first, in existing secondary water tank 300, not only store cooling liquid; And because this pair water tank 300 also need be born the effect of head pressure gas, thereby also have the gas that comes from motor 100 and radiator 200, that is to say; In secondary water tank 300 middle and upper parts is gas; Therefore the bottom is a cooling liquid, fails again when in time additional when the cooling liquid liquid level in the secondary water tank 300 is low, along with jolting in the vehicle operating process; Cooling liquid in the secondary water tank can shake, and gas in the secondary water tank 300 therefore might occur through the communication port 320 entering motors 100 of secondary water tank bottom or the problem of radiator 200.
Secondly; In existing secondary water tank 300, all be to carry out owing to add inject cooling liquid with discharging gas, and this filler 310 is by the pressure cover sealing with pressure-relief valve through filler 310; And in order to add the essential dismounting of inject cooling liquid pressure cover; Therefore when pressure cover after frequently dismantling, the pressure limiting degree of accuracy that makes pressure-relief valve is affected, thereby has shortened working life of pressure cover.
Once more, in existing secondary water tank 300, all be provided with the magnet ring float that is placed on the locating column usually, this magnet ring float can float on the cooling-liquid level, therefore can come the liquid level height of the cooling liquid in the secondary water tank of sensing whereby.But, because in adding inject cooling liquid or vehicle driving process, cooling liquid can produce magnet ring impacts, and therefore will the accuracy of level gauging be exerted an influence.
In addition, existing secondary water tank all directly is fastened on above the radiator usually, and in the vehicle driving process, the vibration of secondary water tank will pass to radiator like this, thereby has shortened the working life of radiator greatly.
The model utility content
The purpose of the utility model provides a kind of secondary water tank that is used for engine-cooling system, even this pair water tank cooling liquid liquid level therein can prevent also when low that gas from getting in the motor.
Another purpose of the utility model provides a kind of engine-cooling system that comprises this secondary water tank.
To achieve these goals; The utility model provides a kind of secondary water tank that is used for engine-cooling system; This pair water tank comprises casing, be formed on the communication port of this lower box, be formed on the gas port on this casing top, the filling lid that is formed on the filler on this casing and seals this filler; Wherein, the position of the said communication port of formation of said casing has the cone structure that reduces gradually towards said communication port size.
Preferably, be formed with grid in the said casing.
Preferably, said secondary water tank also comprises the pressure cover that is formed on the leakage port on the said casing and seals this leakage port.
Preferably, be separated out independent air chamber through dividing plate in the said casing, said leakage port is connected with said independent air chamber, and the top of said dividing plate is formed with vent.
Preferably, also be provided with the baffle plate that a side outside the said independent air chamber of being positioned at of said dividing plate is blocked said vent in the said casing.
Preferably, said secondary water tank also comprises the locating column that is arranged in the said casing and is placed on the magnet ring float on this locating column.
Preferably, said secondary water tank also comprises the safety cover that is provided with around said magnet ring float.
Preferably, said secondary water tank also comprises the support bracket that is installed on said tank ends.
Preferably, said filler is with respect to the inclined setting.
To achieve these goals; The utility model provides a kind of engine-cooling system, and this engine-cooling system comprises motor, radiator and secondary water tank, wherein; Said motor comprises engine water inlet, motor water outlet and motor air outlet; Said radiator comprises water inlet of radiator, radiator outlet and radiator air outlet, and said secondary water tank is the secondary water tank with above-mentioned technical characteristics according to the utility model; Wherein, Said engine water inlet communicates with the communication port and the said radiator outlet of said secondary water tank respectively, and said motor water outlet communicates with said water inlet of radiator, and the gas port of said secondary water tank communicates with said motor air outlet and said radiator air outlet respectively.
In the utility model; Because the position of the said communication port of formation of said casing has the cone structure that reduces gradually towards said communication port size; That is to say; The cross section of casing will narrow down to minimum to said communication port place, so as long as have the cooling liquid of very small amount to get final product the said communication port of sealing gland here.Therefore; When the cooling liquid liquid level in the casing has been lower than minimum alarm liquid level but has failed in time to replenish; Even the cooling liquid in the casing is jolted because of vehicle driving shake, said cone structure can guarantee that also the gas in the casing can not get in motor or the radiator through communication port.
Other feature and advantage of the utility model will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification, is used to explain the utility model with following embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation that comprises the engine-cooling system of existing secondary water tank;
Fig. 2 is the perspective view according to the secondary water tank of the utility model;
Fig. 3 is the Facad structure schematic representation of secondary water tank shown in Fig. 2;
Fig. 4 is the side structure schematic representation of secondary water tank shown in Fig. 2;
Fig. 5 is the generalized section along Fig. 3 center line A-A intercepting;
Fig. 6 is the generalized section along Fig. 3 center line B-B intercepting; And
Fig. 7 is for opening the internal structure schematic representation according to the secondary water tank of the utility model.
Description of reference numerals
Embodiment
Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model.Should be understood that embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, not do under the situation of opposite explanation, the noun of locality of use is in normal operating condition like " upper and lower " with secondary water tank and gets off to define.
Like Fig. 2, Fig. 3 and shown in Figure 4; The secondary water tank that is used for engine-cooling system according to the utility model comprises casing 1, be formed on the communication port 2 of this casing 1 bottom, be formed on the gas port 3 on this casing 1 top, the filling lid 5 that is formed on the filler 4 on this casing 1 and seals this filler 4; And the position of the said communication port 2 of the formation of said casing 1 has the cone structure 6 that reduces gradually towards said communication port 2 sizes.
Wherein, Said casing 1 is used to hold cooling liquid; Simultaneously owing to the gas that produces in motor and the radiator can be introduced in the secondary water tank through motor air outlet and radiator air outlet respectively; So said secondary water tank in use, and said casing 1 internal upper part is a gas, and the bottom is a cooling liquid.Said casing 1 can form suitable size shape according to the size in actual arrangement space; And said casing 1 can the integral molded plastic moulding; Perhaps also can first split be injection molded into two housings up and down; Two housings are bonded together inciting somebody to action up and down through modes such as bolt connections then, adopt the latter to process casing 1 in the mode of execution of the utility model.
Said communication port 2 be used for cooling liquid process of expansion and contraction cooling but flow go into or flow out casing 1, so this communication port 2 is arranged at the bottom of casing 1 usually.
The gas that said gas port 3 is used for motor and radiator are produced is introduced in the casing 1 and since in the casing 1 usually the bottom be cooling liquid, top is gas, so this gas port 3 is arranged at the top of casing 1 usually.
Said filler 4 is used for when cooling liquid is not enough, in casing 1, adding the usefulness of inject cooling liquid, and this filler 4 can utilize filling cover 5 to seal at ordinary times, when needs are annotated, unloads said filling and covers 5 and annotate and get final product.In addition, be not provided with separately under the situation of leakage port at said secondary water tank, said filler 4 can also be used to discharge the unnecessary gas in the casing 1, and both can realize automatic pressure-relieving through cover in 5 the installation pressure-relief valve in filling this moment, also can be through manual release.Therefore, said filler 4 is arranged at the middle part of casing 1 usually and leans on last position, can avoid cooling liquid to overflow like this.
The position of the said communication port 2 of formation that said cone structure 6 is positioned at said casing 1; Thereby it is as shown in Figure 5; Make said casing 1 form the shape and structure that reduces gradually towards said communication port 2 sizes; Thus, at said communication port 2 places, as long as there is the cooling liquid of very small amount to get final product the said communication port 2 of sealing gland.Therefore; When the cooling liquid liquid level in the casing 1 has been lower than minimum alarm liquid level but has failed in time to replenish; Even the cooling liquid in the casing 1 is jolted because of vehicle driving shake, said cone structure 6 can guarantee that also the gas in the casing 1 can not get in the motor through said communication port 2.
Under the preferable case; As shown in Figure 7; Be formed with grid 7 in the said casing 1; Particularly be formed near the said communication port 2, thus the concuss of the cooling liquid that can prevent to bring by automobilism, and can prevent when cooling liquid flows out said casing 1 whirlpool because of formation when motor or radiator replenish through said communication port 2 gas to be sneaked into.Said grid 7 can be integrally formed through injection moulding and said casing 1, and its size and quantity can design according to actual needs.
Under the preferable case, said secondary water tank also comprises the pressure cover 9 that is formed on the leakage port 8 on the said casing 1 and seals this leakage port 8.The structure of said pressure cover 9 and function are conventionally known to one of skill in the art, and its inside is equipped with pressure-relief valve and vacuum valve, when the air pressure in the casing 1 increases above predetermined value; Pressure-relief valve will be opened; To discharge unnecessary gas, when casing 1 internal air pressure reduces the formation vacuum, vacuum valve will be opened; To suck ambient air, keep the internal system pressure balance.
In this preferred implementation; Because except that said filler 4; Be provided with separately in addition and be specifically designed to the leakage port 8 that discharges the unnecessary gas in the casing 1; Therefore said pressure cover 9 needn't be by frequent dismounting, thereby the pressure limiting degree of accuracy of the pressure-relief valve in the pressure cover will can not be affected, thereby has prolonged the working life of pressure cover.
Under the preferable case, as shown in Figure 6, be separated out independent air chamber 11 through dividing plate 10 in the said casing 1, said leakage port 8 is connected with said independent air chamber 11, and the top of said dividing plate 10 is formed with vent 12.That is to say; Be separated into said independent air chamber 11 and top through said dividing plate 10 in the said casing 1 and hold the gas-liquid mixed chamber 18 that gas, bottom hold cooling liquid; And said independent air chamber 11 is connected through the said vent 12 that forms on the said dividing plate 10 with said gas-liquid mixed chamber 18, with the unanimity that keep-ups pressure.Said dividing plate 10 can be integrally formed through injection moulding and said casing 1, and its size and dimension can design according to actual needs.
When the cooling liquid expanded by heating; When said gas-liquid mixed chamber 18 internal pressures raise; Air-flow in the said gas-liquid mixed chamber 18 will get in the said independent air chamber 11 through said vent 12, and when air pressure increases to above predetermined value, unnecessary gas will be discharged to casing 1 outside through said leakage port 8; And when air pressure reduces the formation vacuum; Casing 1 air outside will get in the said independent air chamber 11 through said leakage port 8, and then get in the said gas-liquid mixed chamber 18 through the vent 12 that forms on the said dividing plate 10, thereby can keep the internal system pressure balance.
Because the bottom in the common said casing 1 is used to hold cooling liquid; So said leakage port 8 must be arranged on the top of casing 1, and through said independent air chamber 11 is set, can make the position is set is restricted of said leakage port 8 in said casing 1; For example work as because spatial limitation; In the time of can't said leakage port 8 being arranged on the top of casing 1 with pressure cover 9, can its position be moved down, therefore the structural design that is designed to said secondary water tank of said independent air chamber 11 is provided convenience.
Under the preferable case, also be provided with the baffle plate 13 that a side outside the said independent air chamber 11 of being positioned at of said dividing plate 10 is blocked said vent 12 in the said casing 1.Said baffle plate 13 can be integrally formed through injection moulding and said casing 1, and its size and dimension can design according to actual needs, as long as can play the screen effect, gets final product to block said vent 12.Through said baffle plate 13 is set, can prevent that cooling liquids in the said gas-liquid mixed chamber 18 from splashing or flow in the said independent air chamber 11.
Under the preferable case, like Fig. 3 and shown in Figure 7, said secondary water tank also comprises the locating column 14 that is arranged in the said casing 1 and is placed on the magnet ring float 15 on this locating column 14.Said locating column 14 can be one-body molded through injection moulding and said casing 1.Said magnet ring float 15 is placed on this locating column 14, and can float on the liquid level of cooling liquid.Therefore can come the liquid level height of the cooling liquid in the said casing 1 of sensing through said magnet ring float 15, when the liquid level of cooling liquid is lower than predetermined fluid level, can utilize liquid level alarm to report to the police, in time add cooling liquid to remind the user.
Preferred, said secondary water tank also comprises the safety cover 16 that is provided with around said magnet ring float 15.Said safety cover 16 can be one-body molded through injection moulding and said casing 1, and its shape and size can design as the case may be, as long as can be round said magnet ring float 15, can guarantee that this magnet ring float 15 contacts with cooling liquid simultaneously again to get final product.Through said safety cover 16 is set, can protects said magnet ring float 15 in adding inject cooling liquid or vehicle driving process, can not receive the impact of cooling liquid, thereby can improve the accuracy of level gauging.
Under the preferable case, as shown in Figure 2, said secondary water tank also comprises the support bracket 17 that is installed on said casing 1 two ends.Because existing secondary water tank all is directly to be fastened on above the radiator, therefore in the vehicle driving process, the vibration of secondary water tank will pass to radiator, thereby will shorten the working life of radiator greatly.And the mode of execution of the utility model can be fixedly attached to said secondary water tank on the side frame of radiator through said support bracket 17 is set.Like this; On the one hand; Secondary water tank is fixed on the heat sink side frame of metal material and is fixed to the steadiness that can improve connection on the plastic radiator, on the other hand, in the vehicle operating process; The vibration of secondary water tank can not be directly delivered to radiator yet, therefore can prolong the working life of radiator greatly.
Under the preferable case, as shown in Figure 2, be formed with two independently said gas ports 3 on the top of said casing 1, in order to connect motor air outlet and radiator air outlet respectively.
Under the preferable case, said filler 4 is with respect to the inclined setting.Because it is as shown in Figure 5; When the cooling liquid in the said casing 1 exceeds the lower edge of said filler 4; Cooling liquid will be overflowed from said filler 4; Be to hold the horizontal position of the highest liquid level of cooling liquid in the said casing 1,, can directly limit the highest liquid level that to hold cooling liquid in the said casing 1 therefore through what said filler 4 was designed to tilt corresponding to the lower edge of said filler 4.And the angle of inclination with respect to substantially horizontal of said filler 4, the promptly said casing 1 interior the highest liquid level that can hold cooling liquid then can design according to the needs of reality.
The utility model also provides a kind of engine-cooling system; This engine-cooling system comprises motor 100, radiator 200 and secondary water tank; Wherein, Said motor 100 comprises engine water inlet 110, motor water outlet 120 and motor air outlet 130, and said radiator 200 comprises water inlet of radiator 210, radiator outlet 220 and radiator air outlet 230, and said secondary water tank is the secondary water tank with above-mentioned all technical characteristicss that the utility model provided; Wherein, Said engine water inlet 110 communicates with said radiator outlet 220 with the communication port 2 of said secondary water tank respectively, and said motor water outlet 120 communicates with said water inlet of radiator 210, and the gas port 3 of said secondary water tank communicates with said motor air outlet 130 and said radiator air outlet 230 respectively.In addition, said engine-cooling system also comprises necessary other assemblies of this cooling system of formation, and its composition, Placement and drive manner are conventionally known to one of skill in the art, so repeat no more at this.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned mode of execution; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technological scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove in addition; Each concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (10)
1. secondary water tank that is used for engine-cooling system; This pair water tank comprises casing (1), be formed on the communication port (2) of this casing (1) bottom, be formed on the gas port (3) on this casing (1) top, the filling lid (5) that is formed on the filler (4) on this casing (1) and seals this filler (4); It is characterized in that the position of the said communication port of formation (2) of said casing (1) has the cone structure (6) that reduces gradually towards said communication port (2) size.
2. secondary water tank according to claim 1 is characterized in that, is formed with grid (7) in the said casing (1).
3. secondary water tank according to claim 1 is characterized in that, said secondary water tank also comprises leakage port (8) that is formed on the said casing (1) and the pressure cover (9) that seals this leakage port (8).
4. secondary water tank according to claim 3 is characterized in that, is separated out independent air chamber (11) through dividing plate (10) in the said casing (1), and said leakage port (8) is connected with said independent air chamber (11), and the top of said dividing plate (10) is formed with vent (12).
5. secondary water tank according to claim 4 is characterized in that, also is provided with in the said casing (1) in a side that is positioned at outside the said independent air chamber (11) of said dividing plate (10) and blocks the baffle plate (13) of said vent (12).
6. secondary water tank according to claim 1 is characterized in that, said secondary water tank also comprises and is arranged at the locating column (14) in the said casing (1) and is placed on the magnet ring float (15) on this locating column (14).
7. secondary water tank according to claim 6 is characterized in that, said secondary water tank also comprises the safety cover (16) that is provided with around said magnet ring float (15).
8. secondary water tank according to claim 1 is characterized in that, said secondary water tank also comprises the support bracket (17) that is installed on said casing (1) two ends.
9. secondary water tank according to claim 1 is characterized in that, said filler (4) is with respect to the inclined setting.
10. engine-cooling system; This engine-cooling system comprises motor (100), radiator (200) and secondary water tank; Wherein, said motor (100) comprises engine water inlet (110), motor water outlet (120) and motor air outlet (130), and said radiator (200) comprises water inlet of radiator (210), radiator outlet (220) and radiator air outlet (230); It is characterized in that; Said secondary water tank is according to any described secondary water tank among the claim 1-9, and wherein, said engine water inlet (110) communicate with the communication port (2) and the said radiator outlet (220) of said secondary water tank respectively; Said motor water outlet (120) communicates with said water inlet of radiator (210), and the gas port of said secondary water tank (3) communicates with said motor air outlet (130) and said radiator air outlet (230) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205267792U CN202370644U (en) | 2011-12-15 | 2011-12-15 | Sub water tank for engine cooling system and engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205267792U CN202370644U (en) | 2011-12-15 | 2011-12-15 | Sub water tank for engine cooling system and engine cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370644U true CN202370644U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205267792U Expired - Lifetime CN202370644U (en) | 2011-12-15 | 2011-12-15 | Sub water tank for engine cooling system and engine cooling system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202370644U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161560A (en) * | 2011-12-15 | 2013-06-19 | 北汽福田汽车股份有限公司 | Expansion tank for engine cooling system and engine cooling system |
| CN106403433A (en) * | 2016-11-09 | 2017-02-15 | 佛山市建春友金属科技有限公司 | Stainless steel cooling particle |
| CN107002877A (en) * | 2014-11-13 | 2017-08-01 | Nok株式会社 | The sealing structure of casing |
| CN111946441A (en) * | 2020-07-03 | 2020-11-17 | 北汽福田汽车股份有限公司 | Liquid level alarm device, method, cooling system and vehicle |
-
2011
- 2011-12-15 CN CN2011205267792U patent/CN202370644U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161560A (en) * | 2011-12-15 | 2013-06-19 | 北汽福田汽车股份有限公司 | Expansion tank for engine cooling system and engine cooling system |
| CN103161560B (en) * | 2011-12-15 | 2015-02-18 | 北汽福田汽车股份有限公司 | Expansion tank for engine cooling system and engine cooling system |
| CN107002877A (en) * | 2014-11-13 | 2017-08-01 | Nok株式会社 | The sealing structure of casing |
| CN107002877B (en) * | 2014-11-13 | 2018-06-01 | Nok株式会社 | The sealing structure of babinet |
| US10544794B2 (en) | 2014-11-13 | 2020-01-28 | Nok Corporation | Sealing structure for casing |
| CN106403433A (en) * | 2016-11-09 | 2017-02-15 | 佛山市建春友金属科技有限公司 | Stainless steel cooling particle |
| CN111946441A (en) * | 2020-07-03 | 2020-11-17 | 北汽福田汽车股份有限公司 | Liquid level alarm device, method, cooling system and vehicle |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20150218 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20150218 |
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| RGAV | Abandon patent right to avoid regrant |