EP1470354A1 - Tuyau de transport de fluides automobiles, comportant un tube interieur lisse et un tube exterieur annele - Google Patents
Tuyau de transport de fluides automobiles, comportant un tube interieur lisse et un tube exterieur anneleInfo
- Publication number
- EP1470354A1 EP1470354A1 EP03709895A EP03709895A EP1470354A1 EP 1470354 A1 EP1470354 A1 EP 1470354A1 EP 03709895 A EP03709895 A EP 03709895A EP 03709895 A EP03709895 A EP 03709895A EP 1470354 A1 EP1470354 A1 EP 1470354A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- pipe
- inner tube
- pipe according
- outer tube
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
-
- 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
- Y10S138/00—Pipes and tubular conduits
- Y10S138/07—Resins
Definitions
- Pipe for transporting automotive fluids comprising a smooth inner tube and a corrugated outer tube.
- the present invention relates to a pipe for transporting automotive fluids such as coolant, fuel, windshield washer fluid, etc.
- a pipe for transporting automotive fluids comprising a smooth inner tube based on a fluorinated thermoplastic material, a corrugated outer tube. Which is in contact with the inner tube through the inner top of its waves and which is made of a thermoplastic material based on polyamide, and means for connecting the outer tube to the inner tube.
- the pipe thus obtained is particularly well suited to the transport of automotive fluids and has • a good ability to be shaped, in particular by "elastic" deformation.
- This pipe is also simple and inexpensive to produce.
- the smooth interior pipe also makes it possible to produce simply connections with the organs to which the pipe is connected, for example by means of nipples integral with the members and force fitted into the inner tube.
- the tubes are monolayer
- the polyamide used is a poly 12
- the fluorinated thermoplastic is one of the materials. following rials:
- PVDF polyfluorovynylidene
- ETFE ethylene tetrafluorethylene
- EEP ethylene perfluoroethylene
- This embodiment has very good characteristics for the transport of automotive fluids.
- the pipe of the invention comprises an inner tube, generally designated at 1, and an outer tube, generally designated at 2, surrounding the inner tube 1 .
- the inner tube 1 is a smooth tube here having a monolayer structure in a fluorinated thermoplastic material.
- the fluorinated thermoplastic material used is a polyfluorovynylidene (PVDF), or a polytetrafluorethylene
- PTFE ethylene tetrafluorethylene
- ETFE ethylene tetrafluorethylene
- EFEP ethylene perfluoroethylene
- the outer tube 2 is a corrugated tube forming waves having an inner vertex 3 of inner diameter equal to or very substantially close to the outer diameter of the inner tube 1.
- the tubes 1 and 2 are connected either at each vertex 3 by gluing or by adhesion for example during a coextrusion process or, if the pipe is of determined length, at the location of its ends by simple mechanical abutment of the outer tube 2 against a flange of the inner tube 1 with or without bonding the ends of the tubes 1 and 2 to one another.
- materials are chosen which are capable of adhering or of being bonded to each other.
- the outer tube 2 here has a single-layer structure of polyamide and preferably of polyamide 12.
- the materials used can be recycled materials, for example from the grinding of scrap tubes, which causes less pollution and generates economic gain.
- the pipe is obtained here by means of a known machine which comprises an extrusion head making it possible to produce, through a first channel, a parison which is pressed under the effect of an external suction against articulated molds surrounding the head d extrusion and moving parallel to the axis thereof.
- a second extrusion channel allows, downstream of the parison extrusion, to fill the corrugated tube formed by the parison inside the molds with an internal smooth tube, which makes it possible to produce the pipe of the invention .
- a supply channel between the corrugated tube and the smooth tube, of a neutral gas which will cooperate in reducing the permeability of the pipe according to the invention.
- This neutral gas air, nitrogen or any other suitable gas, may be kept under pressure inside the waves of the corrugated tube, this pressure being able to constitute an insulating element fighting against the migration of the vapors of inside or outside through the pipe wall.
- the connection of the two tubes will be carried out niere waterproof and preferably at each interior vertex of the corrugated tube.
- the inner tube may include an internal conductive layer in order to allow the discharge of the electrostatic charges generated by the friction of the fluid transported along the pipe. This limits the risk of explosion when the transported fluid is flammable.
- the material of tube 1 will be chosen according to its chemical resistance and its permeability to the fluid conveyed, while the material of tube 2 will be chosen mainly for its characteristics of resistance to the external atmosphere, chemical resistance. and mechanical and corrosion resistance.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201134 | 2002-01-31 | ||
FR0201134A FR2835306B1 (fr) | 2002-01-31 | 2002-01-31 | Tuyau de transport de fluides automobiles, comportant un tube interieur lisse et un tube exterieur annele |
PCT/FR2003/000207 WO2003064910A1 (fr) | 2002-01-31 | 2003-01-22 | Tuyau de transport de fluides automobiles, comportant un tube interieur lisse et un tube exterieur annele |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1470354A1 true EP1470354A1 (fr) | 2004-10-27 |
Family
ID=27619768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03709895A Withdrawn EP1470354A1 (fr) | 2002-01-31 | 2003-01-22 | Tuyau de transport de fluides automobiles, comportant un tube interieur lisse et un tube exterieur annele |
Country Status (5)
Country | Link |
---|---|
US (1) | US7089965B2 (fr) |
EP (1) | EP1470354A1 (fr) |
FR (1) | FR2835306B1 (fr) |
MX (1) | MXPA04007369A (fr) |
WO (1) | WO2003064910A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004037088B3 (de) * | 2004-07-30 | 2006-04-13 | Veritas Ag | Flexibler Schlauch, vorzugsweise Ladeluftschlauch für Kraftfahrzeuge |
DE102005037167A1 (de) * | 2005-08-06 | 2007-02-08 | Witzenmann Gmbh | Kältemittelleitung |
US7546899B2 (en) * | 2005-10-05 | 2009-06-16 | Arrowhead Products Corporation | Lightweight polymer muffler apparatus and method of making same |
DE102006018374A1 (de) * | 2006-04-20 | 2007-10-25 | Drossbach Gmbh & Co Kg | Wellrohr aus thermoplastischem Kunststoff |
US7398798B2 (en) * | 2006-06-22 | 2008-07-15 | Gm Global Technology Operations, Inc. | Flexible sleeve liner for a convolute duct |
DE102008007226A1 (de) * | 2008-02-01 | 2009-08-06 | Fränkische Rohrwerke Gebr. Kirchner Gmbh & Co. Kg | Verbundrohr mit schraubenförmiger Wellung und dessen Verwendung als Abwasserrohr oder Erdkollektor |
DE102008053436B4 (de) * | 2008-10-28 | 2022-06-30 | Volkswagen Ag | Fahrzeug mit einer Kraftstoffleitung zur Förderung zumindest flüssigen Kraftstoffes |
CA2653137C (fr) * | 2009-02-09 | 2016-01-12 | Manfred A. A. Lupke | Profile de conduit non circulaire |
ES2685336T3 (es) * | 2013-01-10 | 2018-10-08 | Medin Medical Innovations Gmbh | Dispositivo de tubo de fluido |
CH707764A2 (de) * | 2013-03-06 | 2014-09-15 | Brugg Rohr Ag Holding | Wärmegedämmtes gewelltes Leitungsrohr. |
JP6636271B2 (ja) * | 2015-06-24 | 2020-01-29 | 株式会社ブリヂストン | 複合管 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2898941A (en) * | 1956-10-10 | 1959-08-11 | Davol Rubber Co | Inhaler tube |
US3330303A (en) * | 1964-06-15 | 1967-07-11 | Continental Oil Co | Composite tubing structure |
AT325299B (de) * | 1967-02-27 | 1975-10-10 | Hegler Wilhelm | Vorrichtung zur herstellung von rohren aus thermoplastischem kunststoff |
US3916505A (en) * | 1970-06-02 | 1975-11-04 | Compoflex Co Ltd | Method of making flexible hose |
US4312383A (en) * | 1980-04-21 | 1982-01-26 | Dayco Corporation | Hose construction and apparatus for and method of making same |
JPS5844583U (ja) * | 1981-09-18 | 1983-03-25 | 金尾 史朗 | 合成樹脂製コルゲ−ト二重管 |
US4967799A (en) * | 1984-08-15 | 1990-11-06 | Dayco Products, Inc. | Plastic abrasion-resistant protective sleeve for hose and method of protecting hose |
US5148837A (en) * | 1988-05-30 | 1992-09-22 | Uponor N.V. | Pipe for relining underground pipelines |
DE9319880U1 (de) * | 1993-12-23 | 1994-03-17 | Inventa Ag | Blasgeformte Kühlflüssigkeitsleitung |
DE9402180U1 (de) * | 1994-02-09 | 1994-04-07 | Inventa Ag | Kühlflüssigkeitsleitung |
WO1995023685A1 (fr) * | 1994-03-04 | 1995-09-08 | Aeroquip Corporation | Composite et sa couche de liaison |
DE4432584C1 (de) * | 1994-09-13 | 1996-02-29 | Inventa Ag | Polymerleitung |
GB2300683B (en) * | 1995-05-06 | 1999-10-20 | Uponor Ltd | Improvements in or relating to flexible pipes |
US5727599A (en) * | 1996-01-16 | 1998-03-17 | Ford Motor Company | Insulating sleeve for a fluid pipe |
JP4055344B2 (ja) * | 1999-11-16 | 2008-03-05 | 東海ゴム工業株式会社 | 燃料系ホース |
KR100853905B1 (ko) * | 2001-03-26 | 2008-08-25 | 파커-한니핀 코포레이션 | 튜빙 및 호스 구조물용 관상 고분자 복합재 |
-
2002
- 2002-01-31 FR FR0201134A patent/FR2835306B1/fr not_active Expired - Fee Related
-
2003
- 2003-01-22 US US10/500,569 patent/US7089965B2/en not_active Expired - Fee Related
- 2003-01-22 EP EP03709895A patent/EP1470354A1/fr not_active Withdrawn
- 2003-01-22 MX MXPA04007369A patent/MXPA04007369A/es active IP Right Grant
- 2003-01-22 WO PCT/FR2003/000207 patent/WO2003064910A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO03064910A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2835306A1 (fr) | 2003-08-01 |
FR2835306B1 (fr) | 2004-05-21 |
US20050092383A1 (en) | 2005-05-05 |
US7089965B2 (en) | 2006-08-15 |
MXPA04007369A (es) | 2004-11-26 |
WO2003064910A1 (fr) | 2003-08-07 |
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