EP0388765B1 - Bouchon pour un goulot de réservoir - Google Patents

Bouchon pour un goulot de réservoir Download PDF

Info

Publication number
EP0388765B1
EP0388765B1 EP90104760A EP90104760A EP0388765B1 EP 0388765 B1 EP0388765 B1 EP 0388765B1 EP 90104760 A EP90104760 A EP 90104760A EP 90104760 A EP90104760 A EP 90104760A EP 0388765 B1 EP0388765 B1 EP 0388765B1
Authority
EP
European Patent Office
Prior art keywords
cap
inner part
annular
closure
sealing diaphragm
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
EP90104760A
Other languages
German (de)
English (en)
Other versions
EP0388765A1 (fr
Inventor
Konrad Scharrer
Josef Weichselbaumer
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.)
BLAU GMBH FABRIK FUER KRAFTFAHRZEUGTEILE
Audi AG
Original Assignee
B L A U GmbH
Audi AG
Blau KG
Blau KG Fabrik fuer Kraftfahrzeugteile
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 B L A U GmbH, Audi AG, Blau KG, Blau KG Fabrik fuer Kraftfahrzeugteile filed Critical B L A U GmbH
Publication of EP0388765A1 publication Critical patent/EP0388765A1/fr
Application granted granted Critical
Publication of EP0388765B1 publication Critical patent/EP0388765B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 cover for a container neck according to the preamble of claim 1.
  • This cover represents an internal state of the art, a construction similar to a cover is known from US-A-27 99 260.
  • valve spring of which is designed as a helical spring and whose end is remote from the valve body lies against a support body which is axially adjustable by means of a threaded spindle, so that the preload of the valve spring and thus the opening pressure of the valve can be adjusted.
  • the invention has for its object to provide a lid of the type mentioned, with the can be achieved in a simple manner and without the use of special springs that the pressure-vacuum valve opens at a pressure value which is within narrowly specified limits.
  • the pretension of the pressure spring can be precisely adjusted with simple means.
  • the tolerances of the springs used are irrelevant.
  • the radially inner wall can be designed, for example, as a hexagonal surface, so that the support body can be easily rotated with a hexagonal key that engages in the opening, and the tension of the spring can thus be adjusted.
  • the helical compression spring used as an overpressure spring is ground on its end surfaces in order to achieve a flat contact surface.
  • the pressure spring with its end facing the sealing membrane is supported on a plate which is mounted on the flexible support plate by means of a ball joint.
  • the plate can have a spherical shell-shaped elevation in its center, which engages in a corresponding ball socket-like recess in the support disk.
  • the radiator cap shown comprises an outer cover cap 10, which is generally made of plastic, and a cover inner part 12, which is connected to the cover part 12 in a manner not shown Ring seal 18 supports the Support is determined on the edge of a container neck, not shown, to be closed by the radiator cap.
  • the ring seal 18 is held by axially parallel ribs 20 on the inside of the cap 10, so that it can not detach from the flange 16.
  • the lower part 14, which is made of sheet metal is connected to an upper part 22, which is also made of sheet metal and consists of a cylindrical section 24 and a ring 26 projecting radially outwards. This ring 26 rests on the side of the flange 16 facing away from the ring seal and is firmly connected to the lower part 14 by flanging the flange edge inwards, as shown in the figure.
  • the cylindrical section 24 is provided with an internal thread 28.
  • a ring 30 carrying an external thread and having a U-shaped cross-sectional profile is screwed into the thread attachment thus formed.
  • the radially inner wall 32 of the ring 30 is designed as a hexagon socket surface so that a hexagon wrench can be inserted into the central opening of the ring, with the aid of which the ring can be screwed into the threaded attachment 24.
  • the ring 30 serves in the manner shown to support a helical compression spring 34 which is supported with its end remote from the ring 30 on a plate 36. In its center, this has a spherical head-shaped shape 38 which engages in a ball socket 40 of a flexible support disk 42.
  • the flexible support disk 42 bears against an annular sealing membrane 44.
  • the sealing membrane 44 rests on an annular rib 46 which is formed on a radially inwardly directed shoulder 48 at the lower end of the inner cover part 12.
  • the ring rib 46 is integrally formed with a plastic part 50, which is formed by overmolding the lower end of the lower part 14.
  • the central opening 52 of the annular sealing membrane 44 is closed by a flat tin pot 54 which is surrounded by a helical compression spring 56 which is supported on its radially outward edge and which is supported with its opposite end on a radially inward section 58 of the plastic part 50.
  • the radiator cap described so far works as follows when exposed to negative pressure or excess pressure in the container closed by it:
  • An overpressure prevailing in the container interior also acts against the spring cup 54 and lifts it together with the sealing membrane 44 of the support disk 42 and the plate 36 against the force of the pressure spring 44 from the annular rib 46, so that the bottom opening 60 of the inner cover part and the openings 66 in the upper part of the same a connection between the container interior and the outside world is created.
  • the pressure-vacuum valve thus formed opens at a more or less strong pressure in the interior of the container. The opening pressure can thus be set very precisely for the installed springs and is therefore no longer dependent on the spring tolerances.
  • annular bead 68 is formed in the support disk 42 near the edge thereof, which rests on the sealing membrane and whose average diameter corresponds to the average diameter of the annular rib 46.
  • This ring bead 48 ensures that the pressure of the support disk 42 is exerted on the sealing membrane 44 in the region of the ring rib 46.
  • centering ribs 70 are formed on the inside of the pot-shaped lower part 14 of the inner cover part 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Safety Valves (AREA)

Claims (5)

  1. Bouchon de fermeture pour un goulot de réservoir, notamment bouchon de radiateur, comprenant un chapeau de bouchon (10) et une partie intérieure de bouchon (12) en forme de pot, assemblée audit chapeau, pourvue d'un rebord annulaire (16) dirigé radialement vers l'extérieur et portant un joint d'étanchéité annulaire (18) destiné à s'appuyer sur le bord du goulot de réservoir, avec une soupape de sûreté à pression maximale-minimale comprenant une membrane d'étanchéité annulaire (44) qui, par sa face intérieure tournée vers l'intérieur du réservoir, s'applique contre une face d'étanchéité annulaire (46) de la partie intérieure de bouchon (12) et contre un obturateur (54), de diamètre inférieur à cette dernière, lequel recouvre l'ouverture centrale (52) de la membrane d'étanchéité (44) et est presse contre la face intérieure de cette membrane d'étanchéité (44) par un ressort de pression minimale (56) s'appuyant contre le fond (58) de la partie intérieure de bouchon (12), tandis qu'un disque de soutien (42) s'applique, sous la pression d'un ressort de pression maximale (34), contre la face de la membrane qui est tournée vers l'extérieur, caractérisé en ce que le ressort de pression maximale (34), consistant en un ressort de compression hélicoïdal, s'applique, par son extrémité éloignée de la membrane d'étanchéité (44), contre un corps de soutien (30) formé par une bague à profil en U, dont la paroi radialement intérieure (32) délimite une surface d'ouverture polygonale et dont la paroi radialement extérieure porte un filetage sur son côté extérieur, et qui peut être vissée, dans un élément supérieur cylindrique (24) portant un filetage complémentaire (28) de la partie intérieure de bouchon (12), de telle sorte que la précontrainte du ressort de pression maximale (34) peut être réglée en déplaçant axialement le corps de soutien (30).
  2. Bouchon de fermeture selon la revendication 1, caractérisé en ce que le ressort de pression maximale (34) s'appuie, par son extrémité tournée vers la membrane d'étanchéité (44), contre un plateau (36) qui est monté sur le disque de soutien flexible (42) au moyen d'un appui sphérique.
  3. Bouchon de fermeture selon la revendication 2, caractérisé en ce que le disque de soutien (42) présente une moulure annulaire (68), évidée en direction de la membrane d'étanchéité (44) et dont le diamètre de référence est approximativement identique à celui de la face d'étanchéité (46) prévue sur la partie intérieure de bouchon (12).
  4. Bouchon de fermeture selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le disque de soutien (42) présente, radialement à l'intérieur de l'ouverture centrale (52) de la membrane d'étanchéité (44), au moins une ouverture (64).
  5. Bouchon de fermeture selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la face d'étanchéité prévue sur la partie intérieure de bouchon (12) est formée par une nervure annulaire (46), et en ce qu'une seconde nervure annulaire (62), légèrement plus plate, est disposée entre la nervure précitée (46) et l'obturateur (54).
EP90104760A 1989-03-23 1990-03-13 Bouchon pour un goulot de réservoir Expired - Lifetime EP0388765B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8903708U 1989-03-23
DE8903708U DE8903708U1 (fr) 1989-03-23 1989-03-23

Publications (2)

Publication Number Publication Date
EP0388765A1 EP0388765A1 (fr) 1990-09-26
EP0388765B1 true EP0388765B1 (fr) 1994-01-19

Family

ID=6837518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104760A Expired - Lifetime EP0388765B1 (fr) 1989-03-23 1990-03-13 Bouchon pour un goulot de réservoir

Country Status (6)

Country Link
US (1) US5036888A (fr)
EP (1) EP0388765B1 (fr)
JP (1) JPH0356258A (fr)
DD (1) DD297797A5 (fr)
DE (2) DE8903708U1 (fr)
ES (1) ES2050291T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9013214U1 (fr) * 1990-09-18 1991-03-14 Blau Kg, 4018 Langenfeld, De
DE9016938U1 (fr) * 1990-12-14 1991-03-07 Blau Fabrik Fuer Fahrzeugteile Gesellschaft M.B.H., Salzburg, At
DE4121086A1 (de) * 1991-06-26 1993-01-14 Laengerer & Reich Kuehler Ueberdruckventileinrichtung fuer den kuehlkreislauf einer fluessigkeitsgekuehlten brennkraftmaschine
JP3118879B2 (ja) * 1991-06-27 2000-12-18 豊田合成株式会社 燃料キャップ
DE19753597A1 (de) * 1997-12-03 1999-06-24 Heinrich Reutter Verschlußdeckel für Kraftfahrzeugkühler
US6532910B2 (en) 2001-02-20 2003-03-18 Volvo Trucks North America, Inc. Engine cooling system
US7152555B2 (en) * 2001-02-20 2006-12-26 Volvo Trucks North America, Inc. Engine cooling system
DE20201082U1 (de) * 2002-01-24 2003-06-05 Reutter Heinrich Verschlussdeckel für Kraftfahrzeugkühler
US8517200B1 (en) * 2008-08-08 2013-08-27 Ron Davis Racing Products, Inc. Decorative radiator cap cover retention system for automotive use
GB2518670B (en) * 2013-09-30 2016-10-05 Ford Global Tech Llc An apparatus and system for detecting a cooling system leak
US20200063638A1 (en) * 2018-08-23 2020-02-27 Hsi-Chang LEE Pressure adjustable radiator cap

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD16107A (fr) *
DE359598C (de) * 1922-09-25 Paul Belitz Mit Sicherheitsventil versehener Kuehler fuer Verbrennungsmotoren
DE369931C (de) * 1920-05-04 1923-02-24 Marius Jean Baptiste Barbarou Behaelterverschluss
US1839029A (en) * 1930-05-03 1931-12-29 Edward S Horan Radiator
US2203801A (en) * 1936-11-12 1940-06-11 Eaton Mfg Co Closure device for sealed cooling systems
US3061138A (en) * 1957-01-03 1962-10-30 Edelmann And Company E Radiator cap
DE2339477A1 (de) * 1973-08-03 1975-02-20 Blau Kg Kraftfahrzeugtech Anordnung fuer mittels zylinderschloss oder schliesszylindereinsatz zu sichernde verriegelung, insbesondere fuer verschlussdeckel auf behaeltern oder als rohrstutzenabschluss
GB1455984A (en) * 1974-09-20 1976-11-17 Blau Kg Kraftfahrzeugtech Closure cap
GB1534318A (en) * 1976-08-12 1978-11-29 Gen Motors France Closure caps
DE2752930A1 (de) * 1977-11-26 1979-05-31 Sueddeutsche Kuehler Behr Verschlussteil fuer fuellstutzen von kuehler bzw. ausgleichsbehaelter in kuehlkreislaeufen von brennkraftmaschinen, insbesondere von kraftfahrzeugen, mit einem ueberdruck- und unterdruckventil
US4185751A (en) * 1978-07-31 1980-01-29 Stant Manufacturing Company, Inc. Radiator cap
US4913303A (en) * 1987-06-16 1990-04-03 Stant Inc. Liquid splash control fuel cap

Also Published As

Publication number Publication date
DD297797A5 (de) 1992-01-23
DE8903708U1 (fr) 1990-07-26
DE59004272D1 (de) 1994-03-03
JPH0356258A (ja) 1991-03-11
US5036888A (en) 1991-08-06
ES2050291T3 (es) 1994-05-16
EP0388765A1 (fr) 1990-09-26

Similar Documents

Publication Publication Date Title
EP0370234B1 (fr) Gorge de remplissage de radiateur avec bouchon
DE3100424C2 (de) Kunststoffverschluß zum Abdichten eines Behälters
EP0388765B1 (fr) Bouchon pour un goulot de réservoir
DE2812197A1 (de) Behaelterverschluss
WO2020104260A1 (fr) Dispositif de filtration
EP0784574B1 (fr) Couvercle de bouteilles ou similaires
EP2723465A1 (fr) Dispositif de filtrage
EP1025016A1 (fr) Bouchon filete en matiere plastique servant a verrouiller un article, tel qu'une bouteille
WO1990005261A1 (fr) Soupape a diaphragme avec un diaphragme elastique monte sur un chapeau de soupape
DE4404350C2 (de) Sicherheitsventil
EP0026284B1 (fr) Fermeture à vis de sécurité
EP0581011A2 (fr) Récipient avec dispositif d'équilibrage de pression
WO2002090202A1 (fr) Fermeture de contenant et bouchon de fermeture d'une telle fermeture de contenant
DE4122783C2 (de) Verschluß für eine Flasche oder dergleichen
EP0082292A1 (fr) Bouchon en particulier pour radiateur d'automobile
EP1036261B1 (fr) Couvercle de fermeture
EP0597867B1 (fr) Bouchon filete de fermeture de bouteilles ou d'objets similaires
DE4234010A1 (de) Verschluß für eine Flasche oder dergleichen
DE20316580U1 (de) Verschlussdeckel für Kraftfahrzeugkühler
EP0490129B1 (fr) Bouchon pour l'embouchure d'un récipient, notamment le radiateur d'une automobile
DE3505136A1 (de) Verschlussanordnung fuer den fuellstutzen eines behaelters
DE2658298C3 (de) Verschluß für den Nachfüllbehälter eines Hauptbremszylinders einer hydraulischen Bremsanlage
DE2907104C3 (de) Verschlußvorrichtung für Einfüllstutzen von Wasserkästen, insbesondere solchen von Fahrzeugkühlern
WO2001034490A1 (fr) Fermeture d'un contenant et procede de fermeture et d'ouverture de ce contenant
DE202006016464U1 (de) Entlüftungsventil mit Staubschutzabdeckung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB GR IT LI

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19910322

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 19920720

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930617

Year of fee payment: 6

EPTA Lu: last paid annual fee
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940119

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: AUDI AG

Owner name: BLAU GMBH FABRIK FUER KRAFTFAHRZEUGTEILE

REF Corresponds to:

Ref document number: 59004272

Country of ref document: DE

Date of ref document: 19940303

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940309

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19940316

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940328

Year of fee payment: 5

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940311

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940429

Year of fee payment: 5

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2050291

Country of ref document: ES

Kind code of ref document: T3

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950314

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050313