WO2011067798A1 - Tube multicouche, en particulier pour transporter des gaz à l'état liquide - Google Patents

Tube multicouche, en particulier pour transporter des gaz à l'état liquide Download PDF

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Publication number
WO2011067798A1
WO2011067798A1 PCT/IT2009/000548 IT2009000548W WO2011067798A1 WO 2011067798 A1 WO2011067798 A1 WO 2011067798A1 IT 2009000548 W IT2009000548 W IT 2009000548W WO 2011067798 A1 WO2011067798 A1 WO 2011067798A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
layer tube
polyamide
tube
tubular structure
Prior art date
Application number
PCT/IT2009/000548
Other languages
English (en)
Inventor
CARRARO MASSIMO c/o ERRECINQUE S.R.L VIA MEUCCI 31/A 1-10040 LEINI" TO
Original Assignee
Errecinque S.R.L
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 Errecinque S.R.L filed Critical Errecinque S.R.L
Priority to PCT/IT2009/000548 priority Critical patent/WO2011067798A1/fr
Publication of WO2011067798A1 publication Critical patent/WO2011067798A1/fr

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
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
    • F16L11/086—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers two layers

Definitions

  • the present invention refers to a multi-layer tube, in particular for transporting gases in liquid state in supplying systems of motor vehicles.
  • the art proposes internal combustion engines that can be supplied with a gas in a liquid state such as, for example, methane or GPL.
  • a gas in a liquid state such as, for example, methane or GPL.
  • the related supplying system is composed of metal tubes, mainly made of stainless steel.
  • Such tubes are relatively costly and, given their high stiffness, they can be adapted with difficulty to different path lay-outs imposed by the different arrangement of components on the various vehicles: moreover, the assembly operation of such metallic tubes inside the vehicle requires the use of numerous supports and brackets, resulting particularly difficult .
  • object of the present invention is solving the above prior art problems, by providing a multi-layer tube, in particular for transporting gases in liquid state in supplying systems of motor vehicles, that is less expensive than traditional metallic tubes, even if it keeps similar features in terms of resistance.
  • Another object of the present invention is providing a multi-layer tube, in particular for transporting gases in liquid ' state in supplying systems of motor vehicles, that is lighter than traditional metallic tubes, even if it keeps similar features in terms of resistance.
  • Figure 1 shows a perspective, partially sectioned view of a preferred embodiment of the multi ⁇ layer tube according to the present invention.
  • the multi-layer tube 1 according to the present invention in particular aimed for transporting gases in liquid state, such as methane or GPL, in supplying systems of motor vehicles is composed, radially starting from inside towards outside the tube, of:
  • an internal tubular structure 3 made of a thermoplastic material
  • At least one first reinforcing layer 5 made of a textile material
  • At least one second reinforcing layer 7 composed of metallic filaments; at least one external coating layer 9 made of a thermoplastic material.
  • the internal tubular structure 3 represents the most internal layer of the tube 1 according to the present invention aimed to directly get in contact with the transported gases: for such reason, obviously, the structure 3 must be completely impermeable to gases.
  • the thermoplastic material of which such internal tubular structure 3 is made is a polyamide and, still more preferably, is a polyamide PA12.
  • the thickness of the layer of material composing the internal tubular structure 3 is included between 0.5 mm and 1.5 mm, still more preferably equal to 1 mm; a an average, the external diameter of the internal tubular structure 3 is preferably equal to 10 mm obtaining an average specific weight of the internal tubular structure 3 equal to 33 g/m.
  • an adequate polyamide PA12 for making the internal tubular structure 3 of the tube 1 according to the present invention is Polyamide Grimalid® L25W40 manufactured by EMS-CHEMIE .
  • the first reinforcing layer 5 is instead adapted to guarantee the due resistance to gas transport pressures: preferably then the textile material of which such first reinforcing layer 5 is made is a woven material shaped as a braid, such braid-shaped woven material being still more preferably composed of aramide fibres: in particular, the braid-shaped woven material in aramide fibres is composed of at least 3 Kevlar® wires. Still more preferably, the braid-shaped woven material is composed of 5 Kevlar® wires with 24 spindles, that allows obtaining an average specific weight of the first reinforcing layer 5 equal to 6 g/m.
  • the second reinforcing layer 7 is adapted to guarantee the due resistance to gas transport pressures in addition to possible impacts: preferably then the metallic filaments of which such second reinforcing layer 7 is made are of brass and shaped as a braid, such braid being preferably composed of at least 4 wires of annealed brass, still more preferably being composed of 6 wires of annealed brass, each filament having a diameter of 0.3 mm, that allow obtaining an average specific weight of the second reinforcing layer 7 equal to 118 g/m.
  • the external coating layer 9 instead is the layer of protection against the external environment of the internal layers 3, 5 and 7 of the tube 1 according to the present invention: preferably, the thermoplastic material of which such internal tubular structure 3 is made is a polyamide and, still more preferably, is a polyamide 9 000548
  • the thickness of the layer of material composing the external coating layer 9 is such as to obtain an average specific weight of the external coating layer 9 of 39 g/m.
  • an adequate polyamide PA12 for making the external coating layer 9 of the tube 1 according to the present invention is Polyamide 30-30 J 126L manufactured by UBE INDUSTRIES, LTD.
  • the present invention therefore allows obtaining a multi-layer tube 1 having advantageously an average specific weight of 196 g/m.
  • Table 1 lists, as an example, the results of some resistance tests performed by the Applicant on 5 sample lengths of multi-layer tube 1 according to the present invention under different operating conditions:

Abstract

L'invention porte sur un tube multicouche (1), particulièrement apte à transporter des gaz à l'état liquide dans des systèmes d'alimentation de véhicules automobiles, composé d'une structure tubulaire intérieure (3) faite d'une matière thermoplastique, d'au moins une première couche de renforcement (5) faite d'une matière textile, d'au moins une seconde couche de renforcement (7) composée de filaments métalliques et d'au moins une couche de revêtement extérieur (9) faite d'une matière thermoplastique.
PCT/IT2009/000548 2009-12-04 2009-12-04 Tube multicouche, en particulier pour transporter des gaz à l'état liquide WO2011067798A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000548 WO2011067798A1 (fr) 2009-12-04 2009-12-04 Tube multicouche, en particulier pour transporter des gaz à l'état liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000548 WO2011067798A1 (fr) 2009-12-04 2009-12-04 Tube multicouche, en particulier pour transporter des gaz à l'état liquide

Publications (1)

Publication Number Publication Date
WO2011067798A1 true WO2011067798A1 (fr) 2011-06-09

Family

ID=43302381

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000548 WO2011067798A1 (fr) 2009-12-04 2009-12-04 Tube multicouche, en particulier pour transporter des gaz à l'état liquide

Country Status (1)

Country Link
WO (1) WO2011067798A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605542A (zh) * 2012-01-04 2012-07-25 江南大学 用于汽车耐高温软管增强材料的经编芳纶网眼织物
WO2016199643A1 (fr) * 2015-06-09 2016-12-15 横浜ゴム株式会社 Tuyau de dstribution d'hydrogène
JP2017003105A (ja) * 2015-06-09 2017-01-05 横浜ゴム株式会社 水素充填用ホース

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245198A (en) 1969-04-01 1971-09-08 Goodyear Tire & Rubber Preparation of reinforced hose
US3948293A (en) * 1972-07-13 1976-04-06 Goodall Rubber Company Hose construction and utilization
US4384595A (en) * 1981-09-14 1983-05-24 Parker-Hannifin Corporation Hose construction
DE19814924A1 (de) 1998-04-03 1999-10-07 Basf Ag Schlauchfolien
US6390141B1 (en) * 1998-12-21 2002-05-21 Parker-Hannifin Corporation Collapse-resistant hose construction
US20040134555A1 (en) * 2002-11-26 2004-07-15 Powell Steven M. Tubular polymeric composites for tubing and hose constructions
US20070036925A1 (en) 2003-09-19 2007-02-15 Braad Poul E Flexible unbonded pipe and a method for producing such pipe
FR2909433A1 (fr) 2006-11-30 2008-06-06 Arkema France Utilisation d'une structure multicouche pour la fabrication de conduites de gaz, notamment de methane.
FR2921860A1 (fr) 2007-10-08 2009-04-10 Carbone Lorraine Composants So Procede de fabrication d'un dispositif isolant tubulaire et dispositif correspondant

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245198A (en) 1969-04-01 1971-09-08 Goodyear Tire & Rubber Preparation of reinforced hose
US3948293A (en) * 1972-07-13 1976-04-06 Goodall Rubber Company Hose construction and utilization
US4384595A (en) * 1981-09-14 1983-05-24 Parker-Hannifin Corporation Hose construction
DE19814924A1 (de) 1998-04-03 1999-10-07 Basf Ag Schlauchfolien
US6390141B1 (en) * 1998-12-21 2002-05-21 Parker-Hannifin Corporation Collapse-resistant hose construction
US20040134555A1 (en) * 2002-11-26 2004-07-15 Powell Steven M. Tubular polymeric composites for tubing and hose constructions
US20070036925A1 (en) 2003-09-19 2007-02-15 Braad Poul E Flexible unbonded pipe and a method for producing such pipe
FR2909433A1 (fr) 2006-11-30 2008-06-06 Arkema France Utilisation d'une structure multicouche pour la fabrication de conduites de gaz, notamment de methane.
EP2094481A1 (fr) 2006-11-30 2009-09-02 Arkema France Utilisation d'une structure multicouche pour la fabrication de conduites de gaz, notamment de methane
FR2921860A1 (fr) 2007-10-08 2009-04-10 Carbone Lorraine Composants So Procede de fabrication d'un dispositif isolant tubulaire et dispositif correspondant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605542A (zh) * 2012-01-04 2012-07-25 江南大学 用于汽车耐高温软管增强材料的经编芳纶网眼织物
WO2016199643A1 (fr) * 2015-06-09 2016-12-15 横浜ゴム株式会社 Tuyau de dstribution d'hydrogène
JP2017003105A (ja) * 2015-06-09 2017-01-05 横浜ゴム株式会社 水素充填用ホース
US10584810B2 (en) 2015-06-09 2020-03-10 The Yokohama Rubber Co., Ltd. Hydrogen-dispensing hose

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