EP2853712B1 - Réservoir de surtension anti-dispersion pour eau de refroidissement - Google Patents

Réservoir de surtension anti-dispersion pour eau de refroidissement Download PDF

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Publication number
EP2853712B1
EP2853712B1 EP13195797.9A EP13195797A EP2853712B1 EP 2853712 B1 EP2853712 B1 EP 2853712B1 EP 13195797 A EP13195797 A EP 13195797A EP 2853712 B1 EP2853712 B1 EP 2853712B1
Authority
EP
European Patent Office
Prior art keywords
cooling water
surge tank
pressure cap
deformation
cap
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.)
Not-in-force
Application number
EP13195797.9A
Other languages
German (de)
English (en)
Other versions
EP2853712A1 (fr
Inventor
Byoungwoon Ryu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
Original Assignee
Hyundai Motor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hyundai Motor Co filed Critical Hyundai Motor Co
Publication of EP2853712A1 publication Critical patent/EP2853712A1/fr
Application granted granted Critical
Publication of EP2853712B1 publication Critical patent/EP2853712B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0214—Mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0238—Closure caps with overpressure valves or vent valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F01P11/0209—Closure caps
    • F01P11/0214—Mounting
    • F01P2011/0228—Sealing
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86292—System with plural openings, one a gas vent or access opening

Definitions

  • Exemplary embodiments of the present invention relate to a surge tank, and particularly, to a cooling water scatter preventing surge tank capable of basically blocking overflowing vapor and cooling water from leaking or scattering even when the surge tank is tilted.
  • a cooling water storing function an air discharge operation within an engine and a radiator, and a supply of cooling water at the time of generating a vacuum pressure within the engine are performed in a surge tank.
  • the surge tank is provided with a cooling water supply port acting as a path through which the cooling water is supplied to the engine side at the time of exchanging the cooling water and an overflow discharge port serving as a path through which vapor and the cooling water discharged from an inside of the surge tank when a pressure rises to 0.7 bar or more are discharged to the outside and is fastened with a pressure cap so as to hold the inside of the surge tank at a constant pressure of 0.7 bar.
  • the pressure cap is a part which forms a pressure in a cooling system at approximately 0.7 bar so as to increase a boiling point of the cooling water and is opened when the pressure rises to 0.7 bar or more and has a structure satisfying a vapor discharge condition without discharging the cooling water within the surge tank.
  • the surge tank is installed in a vehicle which encounters various driving conditions and thus may be in a situation out of design requirements of the pressure cap. In this situation, the requirements of the pressure cap which discharges only the vapor without discharging the cooling water within the surge tank may not be satisfied.
  • the surge tank is also tilted as much as a tilt of a vehicle which drives a sloping road having a high and long gradient condition and thus a level of the cooling water within the surge tank moves as much as the tilt, such that the cooling water pulls toward the pressure cap, thereby discharging the cooling water.
  • the pressure cap when the pressure cap is opened by the internal pressure rising to 0.7 bar or more in the tilted state of the surge tank, the vapor and the cooling water are not normally discharged through the overflow discharge port but is discharged through the fastened portion of the pressure cap, such that a peripheral portion of the surge tank may be polluted.
  • JP S56 129520 U discloses a cooling water scatter preventing type surge tank assembly, comprising a pressure cap, a cap coupling boss, and a multi-deformation ring mounted to the pressure cap and selectively engaged to the cap coupling boss to form a receiving space therebetween.
  • JP S55 88015 U , US 2002/035874 A1 and EP 1 268 993 B1 each disclose a cooling water scatter preventing type surge tank assembly, comprising a pressure cap, a cap coupling boss, and an O-ring mounted to the pressure cap and selectively engaged to the cap coupling boss to form a receiving space therebetween.
  • Various aspects of the present invention are directed to providing a cooling water scatter preventing type surge tank capable of preventing a peripheral portion of a surge tank from being polluted by blocking overflowing vapor and cooling water from leaking or scattering to the peripheral portion of the surge tank when a pressure cap is opened by an internal pressure rising to 0.7 bar or more, in particular, basically blocking the cooling water from being discharged through a fastened portion of the pressure cap even though the pressure cap is opened in a cooling water pulling state due to the tilt of the surge tank, thereby preventing the peripheral portion of the surge tank from being polluted.
  • FIG. 1 illustrates a configuration of a cooling water scatter preventing type surge tank in accordance with an exemplary embodiment of the present invention.
  • a surge tank 1 is formed to have a shape having an inner space filled with cooling water, in which a bottom surface portion thereof is integrally provided with an overflow port 3 along with a cooling water supply port 2, and a top surface portion thereof is integrally provided with a cap coupling boss 10 with which the pressure cap 30 is screw fastened.
  • a lower space forming a bottom portion is divided into a cooling water space A filled with cooling water, while an upper space forming a top portion is divided into a cooling water expansion space B which is a spare space in which the cooling water may be expanded at the time of a temperature rise of an engine (at the time of hot starting).
  • the cooling water supply port 2 is disposed at the bottom portion of the surge tank 1, while the cap fastening boss 10 is disposed at the top portion of the surge tank 1, and the overflow port 3 communicates with the cap fastening boss 10 while being disposed at the bottom portion of the surge tank 1, such that vapor or overflowing cooling water may be discharged outside of the surge tank 1 when the pressure cap 30 is opened.
  • the cap fastening boss 10 is configured to include an outer wall 11 which protrudes from the top surface of the surge tank 1 to form an opened inner space, a filler neck 13 which protrudes in a hollow pipe form so as to communicate with an inside of the surge tank 1 in the inner space of the outer wall 11, and a receiving space 15 in which the filler neck 13 having a concentric circle shape is formed at the outer wall 11.
  • the outer wall 11 protrudes a relatively lower height than the filler neck 13 and an outer peripheral surface of the filler neck 13 is provided with a male screw to be screw fastened with a female screw of the pressure cap 30.
  • the receiving space 15 forms a path through which when the pressure cap 30 is opened, the vapor or the overflowing cooling water may be discharged outside of the surge tank 1 and has at least one stepped section structure to more relieve the flow of cooling water.
  • the pressure cap 30 is provided with the female screw which is inserted into an inlet of the filler neck 13 and is screw fastened with the male screw of the filler neck 13 and the inside of the pressure cap 30 is provided with a groove into which a gasket 40 is inserted.
  • the pressure cap 30 is provided with a multi-deformation ring 50 along with the gasket 40 to increase sealability of the inside of the surge tank 1, and in particular, when the pressure cap 30 is opened, a phenomenon that the vapor or the overflowing cooling water scatters through the cap fastening boss 10 in the surge tank 1 is prevented.
  • the gasket 40 adheres to the top surface of the filler neck 13 in the state in which the pressure cap 30 is fastened with the filler neck 13 to provide the sealability, thereby forming a pressure of 0.7 bar.
  • the multi-deformation ring 50 adheres to an inner surface of the outer wall 11 in the state in which the pressure cap 30 is fastened with the filler neck 13 to prevent the vapor or the overflowing cooling water from scattering through the cap fastening boss 10 in the surge tank 1 when the pressure cap 30 is opened.
  • FIG. 2 illustrates a detailed configuration of the multi-deformation ring 50 which is separated from the pressure cap 30.
  • the multi-deformation ring 50 is configured to include a circular body 51 having an annular ring shape and a circular protruding body 53 which is integrally formed at an outer edge of the circular body 51 to expand a diameter of the circular body 51.
  • the circular body 51 is inserted into the pressure cap 30 to serve to assemble the multi-deformation ring 50 with the pressure cap 30.
  • the circular protruding body 53 is configured to include a deformation wing 53-2 which protrudes outside of an edge of the circular body 51 from a horizontal section of the circular body 51 to expand the diameter of the circular body 51 and a deformation protrusion 53-1 which protrudes downwardly from the deformation wing 53-2 to expand a width thickness of the circular body 51.
  • the deformation protrusion 53-1 performs a primary sealing operation so as to be adhere between the pressure cap 30 and the outer wall 11 of the cap fastening boss 10, in particular, an operation of more improving an adhesion by receiving a pressure generated from the inside of the pressure cap 30 so as to be pushed to the outside.
  • the deformation wing 53-2 performs a secondary sealing operation to adhere between the pressure cap 30 and the outer wall 11 of the cap fastening boss 10 above the deformation protrusion 53-1.
  • the deformation protrusion 53-1 and the deformation wing 53-2 have a triangular shape and have a high deformation degree at the time of adhering to a contact portion, thereby more strengthening the adhesion.
  • the shape of the deformation protrusion 53-1 and the deformation wing 53-2 is not limited to the triangular shape.
  • the deformation wing 53-2 and the deformation protrusion 53-1 are made of a plate rubber material and formed to have a relatively thinner thickness, thereby maximizing a sealing operation while minimizing a friction force at the time of tightening the pressure cap 30.
  • the minimization of the friction force means the state in which the sealing action of the gasket 40 against the filler neck 13 at the time of tightening the pressure cap 30 is not reduced.
  • the overall multi-deformation ring 50 may be made of the plate rubber material.
  • FIG. 3 illustrates the assembled state of the pressure cap and the multi-deformationring.
  • the pressure cap 30 is provided with a concentric flange 31 which is disposed between the outer wall 11 and the filler neck 13 and the concentric flange 31 is further provided with a ring groove 31-1 which is depressed along an edge of the concentric flange 31, such that the multi-deformation ring 50 may be inserted into the concentric flange 31.
  • the multi-deformation ring 50 is in contact with an inner peripheral surface of the outer wall 11 while the pressure cap 30 goes down along the filler neck 13, and the fastening of the pressure cap 30 is further progressed, such that the primary sealing by the deformation protrusion 53-1 and the secondary sealing by the deformation wing 53-2 may be formed.
  • the deformation protrusion 53-1 suffers from a position deformation a-1 to be lifted up from an initial position a, such that an adhering state Sa to the inner peripheral surface of the outer wall 11 may be more strengthened.
  • the deformation wing 53-2 suffers from a position deformation b-1 to be lifted up from an initial position b, such that an adhering state Sb to the inner peripheral surface of the outer wall 11 may be more strengthened.
  • FIG. 4 illustrates an operation state of the pressure cap depending on a change in posture of the surge tank in accordance with the exemplary embodiment of the present invention.
  • the surge tank 1 is tilted due to a vehicle which drives a sloping road having a high and long gradient condition and cooling water 100 filled in the surge tank 1 is in a pulled state toward the pressure cap 30 due to the sloping road and in this state, the pressure cap 30 is in an opened state due to a pressure of 0.7 bar or more.
  • the pressure cap 30 is further provided with the multi-deformation ring 50 which forms a double sealing, such that the vapor or the overflowing cooling water discharged from the inside of the surge tank 1 due to the opening of the pressure cap 30 may be collected to the receiving space 15 and then the flow of vapor or overflowing cooling water discharged through the overflow port 3 connected to the receiving space 15 may be smoothly performed.
  • the vapor or the overflowing cooling water discharged from the inside of the surge tank 1 due to the opening of the pressure cap 30 is collected to the receiving space 15, but the deformation protrusion 53-1 performing the primary sealing operation of the multi-deformation ring 50 prevents the cooling water from splashing.
  • the cooling water blocked by the deformation protrusion 53-1 may not move toward the deformation wing 53-2 and even though the cooling water moving toward the deformation wing 53-2 is present, the cooling water is again blocked by the deformation wing 53-2 and thus does not deviate from the cap fastening boss 10.
  • the sealing operation is more strengthened by the adhering state Sa due to the deformation of the deformation protrusion 53-1 and the adhering state Sb due to the deformation of the deformation wing 53-2, such that the movement of the cooling water may be completely blocked.
  • the cooling water scatter preventing type surge tank in accordance with the exemplary embodiment of the present invention further includes the multi-deformation ring 50 which collects the vapor or the cooling water, which is discharged through the discharge path opened when the pressure rises to an allowable pressure or more, to the receiving space 15 connected to the overflow port 3, blocks the receiving space 15 from the outside by the pressure cap 30, and is deformed by the pressure cap 30 to perform the sealing processing on the receiving space 15 double, such that the leaking or scattering of the overflowing vapor and cooling water to the peripheral portion of the surge tank may be blocked when the pressure cap is opened by the internal pressure rising to 0.7 bar or more.
  • the multi-deformation ring 50 basically blocks the cooling water from being discharged through the fastened portion of the pressure cap, thereby preventing the peripheral portion of the surge tank from being polluted.
  • the pressure cap holding 0.7 bar and opened at the time of 0.7 bar or more and satisfying the condition of preventing the cooling water from scattering to the outside at the time of pulling the cooling water while satisfying the vapor discharge condition without discharging the cooling water may be applied to the surge tank, thereby remarkably improving the performance of the surge tank.
  • the pressure cap even though the pressure cap is opened in the cooling water pulling state due to the tilt of the surge tank, the pressure cap may basically block the cooling water from scattering to the outside, thereby preventing the peripheral portion of the surge tank from being polluted.
  • the scattering of the cooling water to the outside is basically blocked in the cooling water pulling state due to the tilt of the surge tank by applying the multi-deformation ring inserted into the pressure cap, such that there is little increase in additionnal cost due to the change in design of the pressure cap and the surge tank and the productivity is remarkably improved due to the improvement in the performance of the surge tank.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)

Claims (10)

  1. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement comprenant :
    un capuchon de pression (30) ;
    un bossage de couplage de capuchon (10) ;
    une bague multi-déformation (50) montée sur le capuchon de pression (30) et sélectivement mise en prise sur le bossage de couplage de capuchon (10) pour former un espace de réception (15) entre le capuchon de pression (30) et le bossage de couplage de capuchon (10),
    dans lequel la bague multi-déformation (50) est configurée pour collecter la vapeur ou l'eau de refroidissement déchargée par une trajectoire de décharge ouverte lorsqu'une pression de la vapeur ou de l'eau de refroidissement monte jusqu'à une pression admissible ou supérieure, sur l'espace de réception (15) raccordé à un orifice de trop-plein (3) configuré pour bloquer l'espace de réception (15) depuis l'extérieur par le capuchon de pression (30), et configuré pour être déformé par le capuchon de pression (30) afin de former une double étanchéité,
    dans lequel la bague multi-déformation (50) comprend un corps circulaire (51) ayant une forme de bague annulaire et configuré pour être couplé au capuchon de pression (30), et une saillie de déformation (53-1) et une aile de déformation (53-2) qui sont formées de manière solidaire au niveau d'un bord externe du corps circulaire (51),
    dans lequel l'aile de déformation (53-2) et la saillie de déformation (53-1) scellent chacune l'espace de réception (15) par le contact avec une paroi externe (11) du bossage de couplage de capuchon (10) afin de former la double étanchéité, et
    dans lequel l'espace de réception (15) est enfermé par la paroi externe (11) du bossage de couplage de capuchon (10) et le capuchon de pression (30).
  2. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 1, dans lequel la bague multi-déformation (50) est déformée par une force de fixation du capuchon de pression (30) avec l'espace de réception (15) dans un état dans lequel une extrémité de la bague multi-déformation (50) est insérée dans le capuchon de pression (30) afin de former la double étanchéité.
  3. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 2, dans lequel l'extrémité de la bague multi-déformation (50) est montée dans une rainure annulaire (31-1) qui est formée dans le capuchon de pression (30).
  4. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 3,
    dans lequel le capuchon de pression (30) est prévu avec une bride concentrique (31) dans laquelle la rainure annulaire (31-1) est formée pour être assemblée avec la bague multi-déformation (50),
    dans lequel la bride concentrique (31) est disposée, de manière concentrique, sur un corps de capuchon de pression du capuchon de pression (30) qui est fixé avec un goulot de remplissage (13) qui fait saillie du bossage de couplage de capuchon (10) dans l'espace de réception (15) communiquant avec un intérieur d'un réservoir de surtension (1), et
    dans lequel le corps de capuchon de pression est prévu avec un joint (40) qui est sélectivement en contact avec une surface supérieure du goulot de remplissage (13).
  5. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 1, dans lequel la bague multi-déformation (50) est réalisée avec un matériau en caoutchouc formant plaque.
  6. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 5, dans lequel l'aile de déformation (53-2) fait saillie à l'extérieur du bord externe du corps circulaire (51) dans une section horizontale du corps circulaire (51) et la saillie de déformation (53-1) fait saillie vers le bas à partir de l'aile de déformation (53-2).
  7. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 6, dans lequel la saillie de déformation (53-1) et l'aile de déformation (53-2) ont chacune une forme triangulaire.
  8. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 1,
    dans lequel l'espace de réception (15) communiquant avec l'intérieur d'un réservoir de surtension (1) est formé entre un goulot de remplissage (13) et la paroi externe (11), le goulot de remplissage (13) étant formé pour faire saillie du bossage de couplage de capuchon (10) et configuré pour être fixé avec le capuchon de pression (30) conjointement avec un joint (40), et la paroi externe (11) faisant saillie du bossage de couplage de capuchon (10) pour enfermer le goulot de remplissage (13) dans un cercle concentrique afin de former l'espace de réception (15) entre eux.
  9. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 8, dans lequel la paroi externe (11), le goulot de remplissage (13) et l'espace de réception (15) sont formés comme un espace dans lequel l'eau de refroidissement subit une expansion, dans le réservoir de surtension (1).
  10. Ensemble de réservoir de surtension anti-dispersion pour eau de refroidissement selon la revendication 8, dans lequel une surface périphérique interne du capuchon de pression (30) est prévue avec une vis femelle et une surface périphérique externe du goulot de remplissage (13) est prévue avec une vis mâle de sorte que le capuchon de pression (30) est configuré pour être sélectivement mis en prise avec le goulot de remplissage (13).
EP13195797.9A 2013-09-26 2013-12-05 Réservoir de surtension anti-dispersion pour eau de refroidissement Not-in-force EP2853712B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130114448A KR101459949B1 (ko) 2013-09-26 2013-09-26 냉각수 비산 방지 타입 서지탱크

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EP2853712A1 EP2853712A1 (fr) 2015-04-01
EP2853712B1 true EP2853712B1 (fr) 2018-08-15

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US (1) US20150083252A1 (fr)
EP (1) EP2853712B1 (fr)
KR (1) KR101459949B1 (fr)
CN (1) CN104512612B (fr)

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US10487718B2 (en) * 2016-11-22 2019-11-26 Ford Global Technologies, Llc Overflow cap air vent
CN120739609B (zh) * 2025-08-21 2025-11-11 恒勃控股股份有限公司 膨胀水箱以及新能源车用热管理系统

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US20150083252A1 (en) 2015-03-26
KR101459949B1 (ko) 2014-11-07
CN104512612B (zh) 2017-11-24
CN104512612A (zh) 2015-04-15
EP2853712A1 (fr) 2015-04-01

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