EP0518717A1 - Kühlerverschlussdeckel für Kraftfahrzeuge - Google Patents

Kühlerverschlussdeckel für Kraftfahrzeuge Download PDF

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Publication number
EP0518717A1
EP0518717A1 EP92401435A EP92401435A EP0518717A1 EP 0518717 A1 EP0518717 A1 EP 0518717A1 EP 92401435 A EP92401435 A EP 92401435A EP 92401435 A EP92401435 A EP 92401435A EP 0518717 A1 EP0518717 A1 EP 0518717A1
Authority
EP
European Patent Office
Prior art keywords
plug
neck
face
cover
internal
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.)
Granted
Application number
EP92401435A
Other languages
English (en)
French (fr)
Other versions
EP0518717B1 (de
Inventor
Jean-Pierre Lefevre
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.)
Paul Journee SA
Original Assignee
Paul Journee SA
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 Paul Journee SA filed Critical Paul Journee SA
Publication of EP0518717A1 publication Critical patent/EP0518717A1/de
Application granted granted Critical
Publication of EP0518717B1 publication Critical patent/EP0518717B1/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
    • F01P11/0247—Safety; Locking against opening

Definitions

  • the present invention relates to a plug for closing a filling tube of a cooling and / or heating circuit of a motor vehicle.
  • the invention relates more particularly to a plug for closing a filler neck of a motor vehicle radiator of the type comprising a plug cover and a plug body connected to the cover, which is located in the neck of the pipe and which is equipped with at least one pressure relief valve.
  • this type of plug may also include a vacuum valve and which make it possible to limit the pressure prevailing in the cooling circuit to a predetermined value.
  • This type of plug also makes it possible to avoid the appearance of a vacuum in the cooling circuit.
  • the pressure relief valves commonly used are essentially constituted by a disc-shaped part forming a valve closing element which bears against a valve seat against which it is held elastically with a force predetermined by a compression spring.
  • the opening operation consists of a very short movement of "unscrewing" the plug over an angular travel which is most often less than a quarter of a turn.
  • the plug is no longer axially retained and the residual overpressure in the circuit immediately causes the portion of the sealing cover which is pressing on the free end face of the neck and results in the previously mentioned projection phenomenon.
  • the object of the invention is to remedy the drawbacks which have just been mentioned.
  • the invention provides a plug, in particular for closing a radiator tube, of the type comprising a cover, a portion of the internal face of which rests on a free end face of the neck of the tube and which has snap-on heels which cooperate with a folded edge of the neck to lock the stopper in the closed position by rotation of the latter by a determined angle, and of the type comprising a stopper body connected to the cover which is located in the neck and which is equipped with at least one pressure relief valve, characterized in that said portion of the internal face of the cover comprises at least one ramp which extends circumferentially over an angular sector substantially equal to the angle of rotation of the plug for causing the progressive removal of said internal surface portion from said free end face of the neck when the cap is opened.
  • a tube 10 for filling a motor vehicle radiator which ends axially by a neck-forming portion constituted by two stepped cylindrical tubular portions 12 and 14.
  • the free end face 16 of the neck 10 is constituted by a folded edge of the latter in a C shape.
  • One of the two end branches of C is constituted by the end part of the cylindrical portion 14, while its other end branch 18 extends axially downward, considering the figures, parallel to the tubular portion cylindrical 14.
  • the neck 10 of the tubing also includes a degassing conduit 20, illustrated in FIG. 2, which extends radially in the tubular portion 14.
  • the neck 10 is closed by means of a closure plug 22 consisting essentially of a cover 24 and a plug body 26 which is fixed to the internal face 28 of the cover 24, for example by snap-fastening in hooks 30 (see FIG. 3).
  • a closure plug 22 consisting essentially of a cover 24 and a plug body 26 which is fixed to the internal face 28 of the cover 24, for example by snap-fastening in hooks 30 (see FIG. 3).
  • the peripheral radial part of the cover 24 ends in a portion in the form of a cylindrical skirt 32 which substantially surrounds the end branch 18 of the folded edge of the neck 10.
  • the cylindrical skirt 32 comprises two snap-on heels 34 which cooperate with the corresponding portions of the end branch 18 of the C-shaped portion of the folded edge of the neck 10 to ensure closure and locking on the neck 10 by causing the plug 22 to rotate according to a determined angular stroke.
  • the body 26 of the plug 22 is equipped with a pressure relief valve 36 and a vacuum valve 38.
  • the body 26 of the plug comprises a stepped cylindrical skirt constituted by two cylindrical tubular portions 40 and 42 which are respectively received opposite the internal cylindrical faces of the tubular portions 12 and 14 of the neck 10 of the filling pipe.
  • the tubular cylindrical portion 40 of smaller diameter of the skirt of the body 26 of the plug 22 comprises an O-ring seal 44 which is designed to cooperate with the internal cylindrical face of the tubular portion 12 of the neck 10.
  • cylindrical tubular portion 42 is equipped with an O-ring 46 which cooperates with the internal cylindrical face of the cylindrical tubular portion of larger diameter 14 of the neck.
  • the annular portion 50 of the internal face 28 of the cover 24 of the plug 22 which, in the closed position, bears axially against the free end face 16 of the neck 10, comprises two ramps 52.
  • Each of the ramps 52 extends circumferentially with an inclined profile along an angular sector substantially equal to the angular sector of the locking heels 34 which corresponds to the angle necessary for the user to cause the closure 22 to be closed or opened.
  • the axial thickness of the ramp 52 varies along its length so as to cause, when the plug is rotated from its position illustrated in Figure 1 to its open position illustrated in the FIG. 2, a gradual and controlled axial displacement of the plug body 26 relative to the neck 10.
  • the overpressurized air can gradually escape partly through the degassing duct 20 and partly into the upper zone of the plug 22 because the O-ring seal 46 progresses axially upwards relative to the cylindrical tubular portion 14 under the effect of the cooperation of the ramps 52 with the upper face 16.
  • the profile of the ramps and of the folded edge of the end of the neck 10 are thus designed and dimensioned so that, before the end of the rotation for unlocking the plug 22 relative to the pipe 10, the gases in overpressure in the tubing may have escaped gradually and that, at the time of the actual opening, there is no longer any overpressure in the tubing 10 which could cause projections on the user's hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP19920401435 1991-05-29 1992-05-26 Kühlerverschlussdeckel für Kraftfahrzeuge Expired - Lifetime EP0518717B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9106462 1991-05-29
FR9106462A FR2677001B1 (fr) 1991-05-29 1991-05-29 Bouchon pour la fermeture d'une tubulure de remplissage d'un radiateur de vehicule automobile.

Publications (2)

Publication Number Publication Date
EP0518717A1 true EP0518717A1 (de) 1992-12-16
EP0518717B1 EP0518717B1 (de) 1994-11-02

Family

ID=9413239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920401435 Expired - Lifetime EP0518717B1 (de) 1991-05-29 1992-05-26 Kühlerverschlussdeckel für Kraftfahrzeuge

Country Status (4)

Country Link
EP (1) EP0518717B1 (de)
DE (1) DE69200613T2 (de)
ES (1) ES2065758T3 (de)
FR (1) FR2677001B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741133A1 (fr) * 1995-11-15 1997-05-16 Journee Paul Sa Bouchon perfectionne pour un circuit de refroidissement de vehicule automobile
FR2741132A1 (fr) * 1995-11-15 1997-05-16 Journee Paul Sa Dispositif d'obturation d'un circuit de refroidissement muni de moyens perfectionnes d'etancheite
WO1999010636A1 (en) * 1997-08-21 1999-03-04 Tesma International Inc. Coolant container cap assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2145441A1 (de) * 1971-09-10 1973-03-22 Sid Werk Gmbh Bajonettriegel-verschlussdeckel mit selbsttaetig ventilartig wirkenden vorrichtungen zum ausgleichen von ueber- oder unterdrucken

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2145441A1 (de) * 1971-09-10 1973-03-22 Sid Werk Gmbh Bajonettriegel-verschlussdeckel mit selbsttaetig ventilartig wirkenden vorrichtungen zum ausgleichen von ueber- oder unterdrucken

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741133A1 (fr) * 1995-11-15 1997-05-16 Journee Paul Sa Bouchon perfectionne pour un circuit de refroidissement de vehicule automobile
FR2741132A1 (fr) * 1995-11-15 1997-05-16 Journee Paul Sa Dispositif d'obturation d'un circuit de refroidissement muni de moyens perfectionnes d'etancheite
EP0774569A1 (de) * 1995-11-15 1997-05-21 Paul Journee S.A. Verschlussdeckel für einen Kühlungskreislauf eines Kraftfahrzeuges
WO1999010636A1 (en) * 1997-08-21 1999-03-04 Tesma International Inc. Coolant container cap assembly
US6056139A (en) * 1997-08-21 2000-05-02 Tesma International, Inc. Coolant container cap assembly

Also Published As

Publication number Publication date
EP0518717B1 (de) 1994-11-02
FR2677001A1 (fr) 1992-12-04
DE69200613D1 (de) 1994-12-08
ES2065758T3 (es) 1995-02-16
FR2677001B1 (fr) 1993-12-03
DE69200613T2 (de) 1995-03-23

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