EP0260612B1 - Verschlussteil für einen im wesentlichen mit Flüssigkeit gefüllten Behälter - Google Patents

Verschlussteil für einen im wesentlichen mit Flüssigkeit gefüllten Behälter Download PDF

Info

Publication number
EP0260612B1
EP0260612B1 EP87113283A EP87113283A EP0260612B1 EP 0260612 B1 EP0260612 B1 EP 0260612B1 EP 87113283 A EP87113283 A EP 87113283A EP 87113283 A EP87113283 A EP 87113283A EP 0260612 B1 EP0260612 B1 EP 0260612B1
Authority
EP
European Patent Office
Prior art keywords
container
filler neck
pressure
valve
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87113283A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0260612A3 (en
EP0260612A2 (de
Inventor
Friedrich Benning
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.)
Deere and Co
Original Assignee
Deere and 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 Deere and Co filed Critical Deere and Co
Priority to AT87113283T priority Critical patent/ATE65290T1/de
Publication of EP0260612A2 publication Critical patent/EP0260612A2/de
Publication of EP0260612A3 publication Critical patent/EP0260612A3/de
Application granted granted Critical
Publication of EP0260612B1 publication Critical patent/EP0260612B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/32—Radiator cap

Definitions

  • the invention relates to a closure part of a substantially liquid-filled container, the liquid being subject to different pressures and temperatures, with a filler neck, a line, a closure cap, a ventilation line, a pressure relief valve and a vent valve, the filler neck extending into the container up to desired filling level extends, the line extends between the filler neck and the highest point of the container, the closure cap can be placed on the filler neck, the closure cap contains the spring-loaded pressure relief valve with a seal, which is provided between the line and the ventilation line is and on the one hand is acted upon by the pressure prevailing in the line, and the closure cap also contains the spring-loaded vent valve with a seal that holds the container at the filler completes.
  • the line is U-shaped, wherein it has a throttle opening in its lower area and immersed in the liquid, which serves to determine the fill level.
  • the pressure built up in a space above the liquid in a gas, usually in air should be able to decrease when the closure cap is removed, so that no hot liquid is ejected.
  • the line is separated from the ventilation line by means of two seals when the cap is on, while this is at the top of the container pressure relief valve is not connected to the ventilation line.
  • This closure part is disadvantageous in that the throttle opening always allows liquid to penetrate into the line, up to the level of the respective liquid level, which is ejected under pressure when the closure cap is removed and injures the operator. In addition, when the pressure relief valve is opened, liquid can be ejected, which can cause damage and is also lost. All these disadvantages mean that the liquid level changes continuously and thus a system connected to the container, for example a cooling or a hydraulic system, is influenced in its operation.
  • a filler neck is inserted obliquely into the side wall of a cooler, in order thus to determine the fill level of the coolant in the cooler.
  • the space above the coolant which is filled with air both at standstill and in the operating state when the coolant is hot or at least heated, is also connected via a line to a sealing surface which is closed by the closure cap and which is opened when the closure cap is removed and creates a connection between the room and the atmosphere.
  • a pressure relief valve is provided in the cap, which is always exposed to the coolant and, in the open state, creates a connection between the cooler, that is to say the interior of the container, and the atmosphere via a ventilation line.
  • FR-A-1 243 533 discloses a coolant container with a filler neck which can be closed by means of a closure cap, a pressure relief valve and a bell being provided in the closure cap.
  • a line leads into the filler neck and into the bell, which leads to the highest point of the container at the other end, and a ventilation line leads away from the filler neck - but outside the bell - via which excess liquid can be drained off.
  • the bell is pressed by means of a spring onto a seal on a contact surface of the filler neck when the closure cap is in place, and thus prevents a connection between the line and the ventilation line.
  • the pressure relief valve opens and allows a connection between the line and the ventilation line.
  • This known container has the disadvantage that the pressure in the container via the line, as well as within of the filler neck, directly to the pressure relief valve. Consequently, when the pressure is reduced via the pressure relief valve, both hot air flowing out through the line and water or steam flowing through the filler neck will escape, the line even assuming the function of a nozzle and entraining any water present in the filler neck.
  • the object on which the invention is based is seen in closing the container in such a way that the greatest possible security when opening the container is ensured and the loss of cooling liquid is avoided.
  • a fill restriction is also created which prevents excessive filling from the outset, because additional liquid can no longer be filled if the pressure in the space above the liquid level exceeds a certain level, apart from a minimal and anyway unnecessary amount of liquid which has entered during the filling process which, however, is ejected the first time the pressure is reduced, the line only contains air. No liquid is ejected even when the pressure relief valve responds.
  • the arrangement of a vacuum valve advantageously ensures pressure equalization when the liquid cools and thus reduces its volume, with only air being sucked in via the ventilation line and the line to reduce the vacuum.
  • the filler neck 10 is provided with an edge 26 for a bayonet lock; it may as well be equipped with an external thread. In its upper region it has a chamber 28 which is connected to the atmosphere or to a collecting vessel (not shown) via the ventilation line 24. In the lower end region of the chamber 28, the filler neck 10 is soldered to the container 12 and has a smaller inner diameter. In the region of the smaller inner diameter, a wall 32 is provided which extends radially and has filling openings 30, which extends to the outer surface of the line 16 and is indirectly or directly connected to it. The filler neck 10 extends with its area of smaller diameter into the container 12 up to the desired filling level.
  • the line 16 which in this exemplary embodiment has a U-shape, which can also have a V-shape or a completely different shape, ends in the chamber 28 with a funnel 34 located above the wall 32.
  • the first leg 36 opens into the funnel 34 and the second leg 38 ends near the top edge of the container 12. The filler neck 10 is thus connected to the highest point in the container 12 where only air has accumulated.
  • This shape of the line 16 together with the wall 32 in the filler neck 10 has the effect that when liquid is poured into the container 12, it can only rise up to the lower end of the area of the filler neck 10 with a smaller diameter. If liquid continues to be refilled, this could only reach the interior of the container 12 via the line 16. Since with the filling of the line 16 the air present in a space 42 above the filling level is at the same time taken as the only possibility to flow out, no further liquid can be filled into the container 12.
  • the closure cap 18 is provided in this embodiment with a bayonet lock; however, it could have an internal thread so that it can be screwed onto a filler neck 10 with an external thread. It has a cover 44, on the underside of which a leaf spring 46 is provided above the pressure relief valve 20, which acts on the edge 26 when the closure cap 18 is attached and holds the closure cap 18 in place.
  • a sleeve 48 with a collar 50 and a flange 52 extends from the inside of the cover 44 around its central axis, the flange 52 having a smaller outside diameter than the collar 50.
  • a vent valve 54 Concentric to the sleeve 48, a vent valve 54 is axially displaceably mounted and for this purpose equipped with a plate 56 and a stop cap 58 which are interconnected.
  • a seal 60 is glued, which rests with the closure cap 18 on both the edge of the funnel 34 and the bottom of the chamber 28 and by means of a between the top of the Plate 56 and the underside of the cover 44 effective spring 62 is pressed so that the container 12 in the area the wall 32 is sealed.
  • the side of the stop cap 58 which is remote from the plate 56 is provided with an inner collar 64 which has a bore in its central region whose diameter is smaller than the outer diameter of the collar 50.
  • the inner collar 64 is located axially between the collar 50 and the underside of the cover 44 and is pushed away from the cover 44 by the spring 62 with the plate 56.
  • the inner collar 64 strikes the collar 50.
  • a bore 66 is machined into the central region of the plate 56, the diameter of which corresponds essentially to the inside diameter of the funnel 34.
  • the pressure limiting valve 20 is identical in construction but not in size to the vent valve 54. It also has a plate 68 with a bore 70 and a stop cap 72 with an inner collar 74 with a bore therein. In addition, a spring 76 is provided between the top of the plate 68 and the underside of the collar 50 and a seal 78 is provided on the underside of the plate 68.
  • the inner collar 74 is axially movable between the underside of the collar 50 and the top of the flange 52 and is urged away from the collar 50 to abut against the top of the flange 52.
  • the outer diameter of the plate 68 and the seal 78 fastened to the underside thereof is determined such that it still rests on the edge region of the plate 56 of the vent valve 54 around the bore 66 and is pressed there by means of the spring 76.
  • neither of the two inner collars 64, 74 lies against the collar 50 or the flange 52, and the springs 62, 76 have not reached their minimum length.
  • intermediate gaps remain between the inner collars 64, 74 and the sleeve 48 and the collar 50 and the flare 52.
  • the vacuum valve 22 consists of a shaft 80, a sealing base 82, one opposite the shaft 80 one plate 84 having a larger outside diameter and from a spring 86.
  • the sealing base 82 is formed from a conformable and yet firm plastic, such as hard rubber, and is of an outside diameter which almost corresponds to the inside diameter of the bore 66.
  • the shaft 80 extends with play axially through the bore 70 in the plate 68 of the pressure relief valve 20 and is fixedly connected at its lower end to the sealing base 82 and at its upper end to the plate 84.
  • the spring 86 is inserted between the underside of the plate 84 and the top of the plate 68 of the pressure relief valve 20 and pushes the stem 80 upward, so that the top of the seal base 82 is pressed against the underside of the seal 78 of the plate 68.
  • the springs 62, 76 are dimensioned such that a higher pressure is required to open the vent valve 54 than to open the pressure relief valve 20.
  • the distance between the inner collar 64 and the collar 50 is greater than that when the closure cap 18 is attached Distance between the inner collar 74 and the flange 52.
  • the ventilation line 24 opens radially into the chamber 28 and connects it to the atmosphere or to a collecting or expansion vessel, not shown.
  • the function of the closure part 14 according to the invention is as follows.
  • the cap 18 is removed and liquid is poured into the container 12 through the filler neck 10. This flows through the filler openings 30 provided in the wall 32 until the liquid level has reached the lower edge of the filler neck 10 in its area of smaller diameter. If liquid is subsequently topped up, it will penetrate the funnel 34 and the line 16. fill them up and prevent air from escaping from the space 42 - the container 12 is filled to the correct filling level.
  • the cap 18 is placed on the filler neck 10 and locked by means of the bayonet lock.
  • the seals 60 and 78 form a seal, as described above, and close the container 12 completely from the chamber 28 and thus from the atmosphere.
  • the seal base 82 is and remains attached to the seal 78.
  • the liquid level increases and thus also the pressure of the air or the gas in the space 42.
  • This pressure propagates through the line 16 to the plate 68 of the pressure relief valve 20 and raises it when a certain value is exceeded from the top of the plate 56 of the vent valve 54. Except for the small amount of liquid that got into the line 16 during filling, only air that has accumulated in the space 42 escapes. H. the amount of liquid in the container 12 does not change.
  • the cap 18 In the event that someone removes the cap 18 for maintenance purposes when the liquid 12 is hot and thus high pressure and liquid level, the cap 18 is rotated after the cap has been initially rotated with a bayonet lock up to the first catch and with a thread after the first two or three turns, the inner collar 64 is held by means of the spring 62 on the top of the funnel 34, while the seal 78 is already lifted off the plate 56. While the closure cap 18 is still in positive engagement with the filler neck 10, air under pressure already flows from the space 42 through the intermediate gap between the seal 78 and the plate 56 and the intermediate gap between the inner collar 64 and the collar 50 and does so Liquid without pressure. In other words, in the process described above, the pressure relief valve 20 is opened first, while the vent valve 54 still keeps the container 12 closed. When the cap 18 is subsequently removed from the filler neck 10, no liquid will be ejected, and the cap 18 can be removed safely. The operator also does not come into contact with the outflowing hot air because it escapes via the ventilation line 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP87113283A 1986-09-17 1987-09-11 Verschlussteil für einen im wesentlichen mit Flüssigkeit gefüllten Behälter Expired - Lifetime EP0260612B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113283T ATE65290T1 (de) 1986-09-17 1987-09-11 Verschlussteil fuer einen im wesentlichen mit fluessigkeit gefuellten behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863631528 DE3631528A1 (de) 1986-09-17 1986-09-17 Verschlussteil fuer einen im wesentlichen mit fluessigkeit gefuellten behaelter
DE3631528 1986-09-17

Publications (3)

Publication Number Publication Date
EP0260612A2 EP0260612A2 (de) 1988-03-23
EP0260612A3 EP0260612A3 (en) 1989-03-08
EP0260612B1 true EP0260612B1 (de) 1991-07-17

Family

ID=6309710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113283A Expired - Lifetime EP0260612B1 (de) 1986-09-17 1987-09-11 Verschlussteil für einen im wesentlichen mit Flüssigkeit gefüllten Behälter

Country Status (5)

Country Link
US (1) US4836406A (enrdf_load_stackoverflow)
EP (1) EP0260612B1 (enrdf_load_stackoverflow)
AT (1) ATE65290T1 (enrdf_load_stackoverflow)
DE (2) DE3631528A1 (enrdf_load_stackoverflow)
ES (1) ES2022848B3 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832103C2 (de) * 1988-09-21 1996-08-29 Blau Kg Kraftfahrzeugtech Verschlußdeckel für die Füllöffnung eines Kühlmittelbehälters in Kfz-Kühlanlagen
DE4107525C1 (enrdf_load_stackoverflow) * 1991-03-08 1992-05-27 Blau Kg Fabrik Fuer Kraftfahrzeugteile, 4018 Langenfeld, De
US20030150859A1 (en) * 2000-03-14 2003-08-14 Heinrich Reutter Sealing cap
WO2016094410A1 (en) * 2014-12-08 2016-06-16 Toledo Molding & Die, Inc. Dual chamber coolant reservoir
CN109573311A (zh) * 2018-10-30 2019-04-05 苏州创必成电子科技有限公司 一种可抽吸的瓶盖
JP7626150B2 (ja) * 2023-02-07 2025-02-04 トヨタ自動車株式会社 リザーブタンクおよびこれを備えた冷却システム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1243533A (fr) * 1959-09-04 1960-10-14 Chausson Usines Sa Dispositif de remplissage de sécurité pour récipients fermés contenant un liquide devant être échauffé
US3136292A (en) * 1962-05-24 1964-06-09 Raymond R Mitchell Radiator cap
DE1254908B (de) * 1964-05-22 1967-11-23 Daimler Benz Ag Einrichtung zum Entlueften des im Kuehlsystem von fluessigkeitsgekuehlten Brennkraftmaschinen vorgesehenen Ausgleichsbehaelters
DE2058995B2 (de) * 1970-12-01 1973-08-09 Vorrichtung zum entlueften der kuehlfluessigkeit einer brennkraftmaschine
US4196822A (en) * 1971-10-29 1980-04-08 Avrea Walter C Monolithic radiator cap for sealed pressurized cooling system
US4185751A (en) * 1978-07-31 1980-01-29 Stant Manufacturing Company, Inc. Radiator cap
AU525015B2 (en) * 1978-09-15 1982-10-14 A.S. Daly Nominees Pty. Ltd. Radiator cap assembly
DE2852725A1 (de) * 1978-12-06 1980-06-12 Sueddeutsche Kuehler Behr Ausgleichsbehaelter fuer kuehlfluessigkeit
DE3007272C2 (de) * 1980-02-27 1983-07-28 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Kühlmitteltank für flüssigkeitsgekühlte Brennkraftmaschinen mit schrägem Einfüllstutzen
US4498599A (en) * 1983-08-15 1985-02-12 Avrea Walter C Closure and valving apparatus
DE3517715C2 (de) * 1985-05-17 1993-10-28 Laengerer & Reich Kuehler Kühlflüssigkeitsbehälter für den Kühlflüssigkeitskreislauf einer Brennkraftmaschine

Also Published As

Publication number Publication date
ES2022848B3 (es) 1991-12-16
EP0260612A3 (en) 1989-03-08
EP0260612A2 (de) 1988-03-23
US4836406A (en) 1989-06-06
ATE65290T1 (de) 1991-08-15
DE3631528A1 (de) 1988-03-24
DE3631528C2 (enrdf_load_stackoverflow) 1993-01-28
DE3771425D1 (de) 1991-08-22

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