DE29719911U1 - Antistatic plastic filler tube - Google Patents
Antistatic plastic filler tubeInfo
- Publication number
- DE29719911U1 DE29719911U1 DE29719911U DE29719911U DE29719911U1 DE 29719911 U1 DE29719911 U1 DE 29719911U1 DE 29719911 U DE29719911 U DE 29719911U DE 29719911 U DE29719911 U DE 29719911U DE 29719911 U1 DE29719911 U1 DE 29719911U1
- Authority
- DE
- Germany
- Prior art keywords
- plastic filler
- filler pipe
- attachments
- layer
- equipped plastic
- 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
Links
- 239000000945 filler Substances 0.000 title claims description 14
- 239000004033 plastic Substances 0.000 title claims description 8
- 229920003023 plastic Polymers 0.000 title claims description 8
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 239000006229 carbon black Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 238000001465 metallisation Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 11
- 230000003068 static effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/125—Rigid pipes of plastics with or without reinforcement electrically conducting
-
- 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
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03401—Arrangements or special measures related to fuel tanks or fuel handling for preventing electrostatic charges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Elimination Of Static Electricity (AREA)
Description
Bei Kunststoffeinfülirohren eines KKB (Kunststoffkraftstofftank) muß dafür Sorge getragen werden, daß beim Betanken erzeugte statische Aufladungen im Bereich zündfähigen Kraftstoff-Luftgemisches durch Erdung des Rohres sicher verhindert werden. Dies geschieht heute durch metallischen Verbund der Stutzenmündung (Einfüllsockel) zur Karosserie (Erdungsbänder).When using plastic filler pipes on a plastic fuel tank, care must be taken to ensure that static charges in the area of the ignitable fuel-air mixture generated during refueling are safely prevented by grounding the pipe. Today, this is done by metal bonding the nozzle opening (filler base) to the body (grounding straps).
Werden jedoch an tiefer liegenden Abschnitten des Einfüllrohres durch einströmenden Treibstoff statische Aufladungen erzeugt, so' liegen hier nur ungenügende Ladungsabieitungsmögiichkeiten vor. Insbesondere bei der Ausführung des Einfüllrohres zur Erreichung des „Liquid Seal"-Effektes ergibt sich hier eine besondere Gefährdung. Mittels des erzeugten Venturieffektes wird durch den einströmenden Kraftstoff Luft aus der Atmosphäre eingesaugt, wobei sich ein explosives/ zündfähiges Kraftstoff-/ Luftgemisch innerhalb des Einfüllrohres einstellt. Dieses Gemisch kann durch die statischen Aufladungen zur Zündung gebracht werden. Um eine solche Entzündung sicher zu vermeiden, ist es deshalb unabdingbar, im inneren des Einfüllrohres für eine gute Ableitung statischer Aufladungen zu sorgen, bzw. diese durch geeignete Maßnahmen erst gar nicht entstehen zu lassen.However, if static charges are generated in lower sections of the filler pipe by inflowing fuel, there are insufficient options for dissipating the charge. This is particularly dangerous when the filler pipe is designed to achieve the "liquid seal" effect. The Venturi effect that is generated causes the inflowing fuel to suck in air from the atmosphere, creating an explosive/ignitable fuel/air mixture inside the filler pipe. This mixture can be ignited by the static charges. In order to reliably prevent such an ignition, it is therefore essential to ensure that static charges are well dissipated inside the filler pipe, or to take suitable measures to prevent them from occurring in the first place.
Erfindungsgemäß wird der Nachteil der Aufladung durch Schaffen einer leitfähigen Innenoberfläche, bzw. durch den Einsatz leitfähiger Materialien für das Einfüllrohr und aller damit evtl. verbundenen Anschlußteile behoben. Hierbei sollte der Oberflächenwiderstand (Abieitwiderstand) auf < 106 Ohm gesenkt werden. Ferner muß die Leitfähigkeit über die Lebenszeit eines Kraftfahrzeuges erhalten bleiben.According to the invention, the disadvantage of charging is eliminated by creating a conductive inner surface or by using conductive materials for the filler pipe and all connecting parts that may be connected to it. The surface resistance (leakage resistance) should be reduced to < 10 6 Ohm. Furthermore, the conductivity must be maintained over the lifetime of a motor vehicle.
Beschreibung:Description:
Das bevorzugt aus HDPE oder PA blasgeformte Einfüllrohr ist z.B. durch Coextrusion 2 - 6-schichtig aufgebaut (Abb.1 zeigt ein Ausführungsbeispiel des Schichtaufbaus), wobei folgende Schichten je nach Anforderung generiert werden können:The filling pipe, which is preferably blow-molded from HDPE or PA, is constructed in 2 - 6 layers, for example by coextrusion (Fig. 1 shows an example of the layer structure), whereby the following layers can be generated depending on requirements:
1 a ieitfähige Innenschicht1 a conductive inner layer
1 b Haftvermittler1 b Adhesion promoter
1c Kernschicht HDPE1c core layer HDPE
1d Regeneratschicht1d regenerated layer
1e Haftvermittler1e adhesion promoter
1f Ieitfähige Außenschicht1f Conductive outer layer
Die wirschaftlichste Ausführungsform besteht aus nur zwei Schichten (Abb. 2), wenn nicht das Gesamtsystem ausschließlich aus leitfähigem Material erstellt werden kann.The most economical design consists of only two layers (Fig. 2), unless the entire system can be made exclusively from conductive material.
2a Schicht aus leitfähigem HDPE Russ Compound (<2%)2a layer of conductive HDPE soot compound (<2%)
innen
2b Kernschicht HDPE (>98%) außenInside
2b Core layer HDPE (>98%) outside
Durch sequentielle Coextrusion (Abb. 3) und abfallarmem Blasprozeß kann die Ausführung noch wirtschaftlicher gestaltet werden. Es werden so in lokalen Bereichen Leitfähigkeiten der abriebsresistenten Innenschicht von < 106 Ohm erreicht, was eine ausreichende Sicherheit für Betankungsvorgänge darstellt.The design can be made even more economical through sequential coextrusion (Fig. 3) and a low-waste blowing process. In this way, conductivities of the abrasion-resistant inner layer of < 10 6 Ohm are achieved in local areas, which represents sufficient safety for refueling processes.
Unabhängig vom Herstell- oder Ausführungsverfahren, d.h. Aufbau des Einfüllstutzens aus nur einem leitfähigen Material oder mehreren Material schichten mittels Coextrusion, bzw. sequentieller Coextrusion (Abb 3: Bereich A mit antistatischer Ausrüstung; Bereich B ohne antistatische Ausrüstung), muß durch geeignete Maßnahmen sichergestellt werden, daß die Ieitfähige Schicht im Inneren Einfüllrohres Kontakt zur Fahrzeugkarosserie zwecks Ableitung der statischen Aufladung hat.Regardless of the manufacturing or execution process, i.e. construction of the filler neck from only one conductive material or several material layers by means of coextrusion or sequential coextrusion (Fig. 3: area A with antistatic equipment; area B without antistatic equipment), suitable measures must be taken to ensure that the conductive layer inside the filler pipe is in contact with the vehicle body in order to dissipate the static charge.
Claims (4)
aufweisen.< 10 6 Ohm
exhibit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29719911U DE29719911U1 (en) | 1997-11-08 | 1997-11-08 | Antistatic plastic filler tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29719911U DE29719911U1 (en) | 1997-11-08 | 1997-11-08 | Antistatic plastic filler tube |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29719911U1 true DE29719911U1 (en) | 1998-02-12 |
Family
ID=8048405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29719911U Expired - Lifetime DE29719911U1 (en) | 1997-11-08 | 1997-11-08 | Antistatic plastic filler tube |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29719911U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001068480A1 (en) * | 2000-03-16 | 2001-09-20 | Basell Polyolefine Gmbh | Blow moulded containers and moulded parts consisting of synthetic material and having improved antistatic properties |
WO2003104013A1 (en) * | 2002-06-05 | 2003-12-18 | Kautex Textron Gmbh & Co. Kg | Filler tube |
-
1997
- 1997-11-08 DE DE29719911U patent/DE29719911U1/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001068480A1 (en) * | 2000-03-16 | 2001-09-20 | Basell Polyolefine Gmbh | Blow moulded containers and moulded parts consisting of synthetic material and having improved antistatic properties |
US6855388B2 (en) | 2000-03-16 | 2005-02-15 | Basell Polyolefine Gmbh | Blow moulded containers and moulded parts consisting of synthetic material and having improved antistatic properties |
KR100802347B1 (en) * | 2000-03-16 | 2008-02-13 | 바젤 폴리올레핀 게엠베하 | Blow moulded containers and moulded parts consisting of synthetic material and having improved antistatic properties |
WO2003104013A1 (en) * | 2002-06-05 | 2003-12-18 | Kautex Textron Gmbh & Co. Kg | Filler tube |
CN100360333C (en) * | 2002-06-05 | 2008-01-09 | 考特克斯·特克斯罗恩有限公司及两合公司 | Filler tube |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19980326 |
|
R081 | Change of applicant/patentee |
Owner name: TI GROUP AUTOMOTIVE SYSTEMS (ETTLINGEN) GMBH, DE Free format text: FORMER OWNER: WALBRO AUTOMOTIVE GMBH, 76275 ETTLINGEN, DE Effective date: 20011129 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20020110 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20040602 |