EP4175844A1 - Fermeture de réservoir pour véhicules automobiles - Google Patents

Fermeture de réservoir pour véhicules automobiles

Info

Publication number
EP4175844A1
EP4175844A1 EP21739658.9A EP21739658A EP4175844A1 EP 4175844 A1 EP4175844 A1 EP 4175844A1 EP 21739658 A EP21739658 A EP 21739658A EP 4175844 A1 EP4175844 A1 EP 4175844A1
Authority
EP
European Patent Office
Prior art keywords
sealing ring
tank
flange
locking part
bead
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.)
Pending
Application number
EP21739658.9A
Other languages
German (de)
English (en)
Inventor
Christian BÖRNEMEIER
Tim VÖLKERATH
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.)
Koehler Automobiltechnik GmbH
Original Assignee
Koehler Automobiltechnik GmbH
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 Koehler Automobiltechnik GmbH filed Critical Koehler Automobiltechnik GmbH
Publication of EP4175844A1 publication Critical patent/EP4175844A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel tanks
    • B60K15/0409—Provided with a lock
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel tanks
    • B60K2015/0432—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening
    • B60K2015/0438—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening using screw or bayonet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K15/0406—Filler caps for fuel tanks
    • B60K2015/0451—Sealing means in the closure cap

Definitions

  • the invention relates to a tank cap for motor vehicles, with a locking part for locking on a complementary locking part of a tank neck, a closure part for covering an opening of the tank neck, and an axially compressible sealing ring surrounding the locking part, which is supported on a flange of the closure part .
  • a tank cap of this type is described in DE 20 2014 009 044 Eli.
  • the object of the invention is to create a tank cap that reliably seals the filler neck even when there is increased internal pressure in the vehicle's tank, as can occur, for example, when the heat generated by the battery in a hybrid vehicle causes the tank to heat up leads.
  • the apex of the sealing ring rests radially inside the bead on the surface of the flange of the closure part, and the axial compression of the sealing ring is just sufficient to ensure a gas-tight seal of the tank neck without the axial compression leads to fatigue and/or permanent deformation of the sealing ring.
  • the gas pressure acting on the inner circumference of the seal ring tends to expand the seal ring.
  • the sealing ring hits an undercut formed by the bead, which prevents further radial expansion of the sealing ring and instead presses the sealing ring all the more firmly against the edge of the tank neck. In this way, the pressure tightness of the tank cap is improved.
  • the bead is divided in the circumferential direction into a plurality of segments separated from one another by gaps. This further reduces the permanent load on the sealing ring under normal conditions, and when the internal pressure increases, the segments of the bead dig into the surface of the sealing ring. In this way, a breakthrough of the pressurized gas can be prevented in a particularly reliable manner.
  • an embodiment is explained in more detail with reference to the drawing.
  • FIG. 1 shows an axial partial section of a tank cap according to the inventions.
  • Fig. 2 shows a section through the tank cap without a sealing ring along the line II-II in Fig. 1.
  • the tank cap shown in FIG. 1 has an overall pot-shaped housing 10, for example molded from plastic, which forms a cylindrical locking part 12 on the inside and a closure part 14 on the outside.
  • the locking part 12 not fully shown here is intended to engage in an opening of a tank neck and can be locked in the tank neck, for example by means of a bayonet catch, that the opening of the tank neck is closed by the closing part 14 .
  • the closure part 14 carries a handle 16 on the outside and has a peripheral flange 18 on its outer circumference.
  • the locking part 12 is surrounded on the inside of the flange 18 by a sealing ring 20 made of rubber-elastic material, which has a profile customary for such sealing rings, with an approximately circular cross-section, but with a circumferential groove on the outer periphery, the outer peripheral region of the sealing ring is divided into two lips and the axial compressibility of the sealing ring is increased.
  • a sealing ring 20 made of rubber-elastic material, which has a profile customary for such sealing rings, with an approximately circular cross-section, but with a circumferential groove on the outer periphery, the outer peripheral region of the sealing ring is divided into two lips and the axial compressibility of the sealing ring is increased.
  • the inner peripheral edge of the sealing ring 20 is received in a circumferential groove 22 of the locking part 12 and is thereby in the axial direction positively fixed to the locking part, while an upper apex of the sealing ring is supported on a lower surface 24 of the flange 18.
  • a circumferential bead 26 is formed on the underside of the flange 18, which is raised relative to the surface 24 ben.
  • the bead 26 is divided into eight segments 28 in the circumferential direction, which are separated from one another by gaps 30 .
  • the gaps 30 each extend over a circumferential angle of preferably not more than 30°.
  • a contact line 34 at which the upper apex of the sealing ring 20 touches the Oberflä surface 24 of the flange 18 is shown in phantom in FIG. It is known that the inner edge of the bead 26 lies radially outside of this line of contact 34 .
  • the height of the bead 26 relative to the surface 24 is approximately 1/12 to 1/10 of the total height of the sealing ring 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne une fermeture de réservoir pour véhicules automobiles, comprenant une partie de verrouillage (12) destinée à être verrouillée sur une partie de verrouillage complémentaire de la buse de réservoir, une partie de fermeture (14) pour recouvrir une ouverture de la buse de réservoir, et une bague d'étanchéité (20) compressible axialement entourant la partie de verrouillage (12) et supportée sur une bride (18) de la partie de fermeture (14), caractérisée en ce que la bride (18) comporte un bourrelet (26) qui est formé d'un seul tenant sur sa surface (24) faisant face à la bague d'étanchéité (20), au moins sur une partie de la circonférence, et qui est surélevée par rapport à ladite surface (24), dont le bord intérieur présente un rayon qui est supérieur au rayon du pic (34) de la bague d'étanchéité.
EP21739658.9A 2020-07-06 2021-07-05 Fermeture de réservoir pour véhicules automobiles Pending EP4175844A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202020103899.0U DE202020103899U1 (de) 2020-07-06 2020-07-06 Tankverschluss für Kraftfahrzeuge
PCT/EP2021/068477 WO2022008421A1 (fr) 2020-07-06 2021-07-05 Fermeture de réservoir pour véhicules automobiles

Publications (1)

Publication Number Publication Date
EP4175844A1 true EP4175844A1 (fr) 2023-05-10

Family

ID=76845228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21739658.9A Pending EP4175844A1 (fr) 2020-07-06 2021-07-05 Fermeture de réservoir pour véhicules automobiles

Country Status (5)

Country Link
US (1) US20230256813A1 (fr)
EP (1) EP4175844A1 (fr)
CN (1) CN115812046A (fr)
DE (1) DE202020103899U1 (fr)
WO (1) WO2022008421A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105135A (en) * 1977-02-18 1978-08-08 American Flange & Manufacturing Co. Inc. Closure plug
DE4041536A1 (de) 1990-12-22 1992-06-25 Bosch Gmbh Robert Verschlussdeckel fuer behaelteroeffnungen, insbesondere fuer oel- bzw. kraftstoffeinfuelloeffnungen in kraftfahrzeugen
US5680953A (en) * 1993-11-16 1997-10-28 Rieke Corporation Plastic drum closure
DE69819580T2 (de) * 1997-03-31 2004-09-16 Toyoda Gosei Co., Ltd. Kraftstofftankdeckel
JP4006775B2 (ja) * 1997-03-31 2007-11-14 豊田合成株式会社 燃料キャップ
EP1154935B1 (fr) 1998-10-06 2006-01-04 Stant Manufacturing Inc. Couvercle de goulot de remplissage a limitation de torsion et a couplage rapide
US7690526B1 (en) * 2003-06-24 2010-04-06 Rieke Corporation Closure assembly
JP4596822B2 (ja) 2004-05-28 2010-12-15 株式会社アステア 給油口キャップ
DE102007043033A1 (de) * 2007-09-11 2009-03-12 Magna Steyr Fuel Systems Gmbh Verschlussdeckel für unter Innendruck stehende Behälter mit Sicherheitsfunktion und Verschlussdeckel für einen Treibstofftank
DE202014009044U1 (de) 2014-11-14 2014-12-05 Magna Steyr Fuel Systems Gesmbh Tankverschluss

Also Published As

Publication number Publication date
DE202020103899U1 (de) 2021-10-08
CN115812046A (zh) 2023-03-17
WO2022008421A1 (fr) 2022-01-13
US20230256813A1 (en) 2023-08-17

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