DE19535489C2 - Flexible cooling water pipe for motor vehicles - Google Patents

Flexible cooling water pipe for motor vehicles

Info

Publication number
DE19535489C2
DE19535489C2 DE1995135489 DE19535489A DE19535489C2 DE 19535489 C2 DE19535489 C2 DE 19535489C2 DE 1995135489 DE1995135489 DE 1995135489 DE 19535489 A DE19535489 A DE 19535489A DE 19535489 C2 DE19535489 C2 DE 19535489C2
Authority
DE
Germany
Prior art keywords
cooling water
water pipe
motor vehicles
flexible cooling
layer
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
Application number
DE1995135489
Other languages
German (de)
Other versions
DE19535489C1 (en
Inventor
Dietmar Roloff
Klaus Straszewski
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.)
Cooper Standard Automotive Deutschland GmbH
Original Assignee
Cooper Standard Automotive Deutschland 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 Cooper Standard Automotive Deutschland GmbH filed Critical Cooper Standard Automotive Deutschland GmbH
Priority to DE1995135489 priority Critical patent/DE19535489C2/en
Priority to PCT/EP1996/003812 priority patent/WO1997011300A1/en
Application granted granted Critical
Publication of DE19535489C1 publication Critical patent/DE19535489C1/en
Publication of DE19535489C2 publication Critical patent/DE19535489C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • 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
    • F01P11/04—Arrangements of liquid pipes or hoses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

Die Erfindung betrifft eine flexible Kühlwasserleitung für Kraftfahrzeuge.The invention relates to a flexible cooling water line for Motor vehicles.

Es sind in der Praxis bisher als flexible Kühlwasserleitun­ gen für Kraftfahrzeuge ausschließlich armierte Gummischläu­ che eingesetzt worden. Von derartigen Kühlwasserleitungen wird neben einer hohen Festigkeit eine Beständigkeit insbe­ sondere auch gegenüber Glykol und anderen Kühlwasserzu­ sätzen verlangt. Darüber hinaus müssen die Kühlwasserlei­ tungen eine gute Beständigkeit bis in niedrige Temperatur­ bereiche von -40°C und in hohe Temperaturbereiche bis +120°C aufweisen. Die Herstellung von armierten Gummi­ schläuchen zur Verwendung als Kühlwasserleitungen ist auf­ wendig und teuer.In practice, they are used as flexible cooling water pipes only armored rubber hose for motor vehicles che has been used. From such cooling water pipes In addition to high strength, resistance is particularly high especially against glycol and other cooling water sentences requires. In addition, the cooling water line good resistance down to low temperatures ranges from -40 ° C and in high temperature ranges up to + 120 ° C. The production of armored rubber hoses for use as cooling water pipes is on agile and expensive.

Es sind auch bereits Wellrohrleitungen aus Kunststoff (EP 0 436 923 A2) bekannt geworden, die mehrschichtig aufgebaut sind. Dabei ist für die Außenschicht die Verwendung von Polyamiden bekannt. Für die Innenschicht sind chlorierte, besonders auch fluorierte Polyolefine und Copolyolefine so­ wie Polyvinylchlorid vorgeschlagen worden. Als Zwischen­ schicht zwischen Innenschicht und Außenschicht sind Polyolefine oder Copolyolefine vorgeschlagen worden, die reak­ tionsfähige Gruppen, insbesondere Carboxyl- oder Säureanhy­ dridgruppen, durch Pfropfung oder durch Comonomere erhalten haben.There are also plastic corrugated pipes (EP 0 436 923 A2) become known, which is built up in multiple layers are. The use of is for the outer layer Known polyamides. For the inner layer, chlorinated, especially fluorinated polyolefins and copolyolefins such as polyvinyl chloride have been proposed. As an intermediate layer between the inner layer and the outer layer are polyolefins  or copolyolefins have been proposed that reak capable groups, especially carboxyl or acid obtained third groups, by grafting or by comonomers to have.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, aus Kunststoff extrudierbare, flexi­ ble Kühlwasserleitungen für Kraftfahrzeuge zu schaffen, welche sowohl eine hohe chemische Beständigkeit gegen Kühl­ wasser bzw. Kühlwasserzusätze aufweisen, als auch die er­ forderlichen mechanischen Eigenschaften einschließlich der erforderlichen Temperaturfestigkeit.The invention is based on this prior art based on the task of extrudable plastic, flexi ble to create cooling water pipes for motor vehicles, which both have a high chemical resistance to cooling have water or cooling water additives, as well as he required mechanical properties including the required temperature resistance.

Die Lösung dieser Aufgabe erfolgt mit den Merkmalen des Pa­ tentanspruchs 1.This problem is solved with the characteristics of Pa claim 1.

Bevorzugte Ausgestaltungen der Erfindung sind in den Unter­ ansprüchen erwähnt. Preferred embodiments of the invention are in the sub claims mentioned.  

Nachstehend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnung im einzelnen er­ läutert. Es zeigen:Below is a preferred embodiment the invention with reference to the drawing in detail he purifies. Show it:

Fig. 1 einen Längsschnitt durch eine dreischichtige flexible Kühlwasserleitung, Fig. 1 shows a longitudinal section through a three-layered flexible cooling water line,

Fig. 2 einen Querschnitt entlang II-II in Fig. 1. FIG. 2 shows a cross section along II-II in FIG. 1.

Die zeichnerische Darstellung ist nicht maßstabsge­ recht. Zur Verdeutlichung sind außerdem die drei Schichten im oberen Bereich der Fig. 1 unterschiedlich lang ausgebildet.The graphic representation is not true to scale. For clarification, the three layers in the upper region of FIG. 1 are also of different lengths.

Eine Innenschicht 1 aus Polyvinylidenfluorid (PVDF) weist bevorzugt eine Schichtdicke in der Größenord­ nung von 0,1 bis 0,3 mm auf. Die Innenschicht 1 ist von einer Haftvermittlerschicht 2 umschlossen, die zumin­ dest im wesentlichen ebenfalls aus PVDF besteht. Deren Dicke liegt in der Praxis in der Größenordnung von 0,05 bis 0,15 mm. Eine äußere Kunststoffschicht besteht be­ vorzugt aus Polyamid in einem Dickenbereich von 0,7 bis 1,5 mm. Als geeignet haben sich PA 11 und PA 12 erwiesen.An inner layer 1 made of polyvinylidene fluoride (PVDF) preferably has a layer thickness in the order of magnitude of 0.1 to 0.3 mm. The inner layer 1 is enclosed by an adhesion promoter layer 2 , which at least essentially also consists of PVDF. In practice, their thickness is on the order of 0.05 to 0.15 mm. An outer plastic layer is preferably made of polyamide in a thickness range of 0.7 to 1.5 mm. PA 11 and PA 12 have proven to be suitable.

Claims (3)

1. Flexible Kühlwasserleitung für Kraftfahrzeuge mit mehre­ ren Kunststoffschichten (1; 2; 3), deren innere (1) aus Polyvinylidenfluorid (PVDF) besteht, die von einer Haft­ vermittlerschicht (2) umschlossen ist, die im wesentlichen aus PVDF besteht, wobei die Haftvermittlerschicht (2) von einer weiteren Kunststoffschicht (3) aus Polyamid (PA) um­ geben ist, welche die Außenschicht ist.1. Flexible cooling water pipe for motor vehicles with several plastic layers ( 1 ; 2 ; 3 ), the inner ( 1 ) of polyvinylidene fluoride (PVDF), which is surrounded by an adhesive layer ( 2 ), which consists essentially of PVDF, the Adhesion promoter layer ( 2 ) from another plastic layer ( 3 ) made of polyamide (PA) to give, which is the outer layer. 2. Flexible Kühlwasserleitung nach Anspruch 1, bei der das Polyamid PA 11 ist.2. Flexible cooling water pipe according to claim 1, wherein the polyamide is PA 11 . 3. Flexible Kühlwasserleitung nach Anspruch 1, bei der das Polyamid PA 12 ist.3. Flexible cooling water pipe according to claim 1, wherein the polyamide is PA 12 .
DE1995135489 1995-09-23 1995-09-23 Flexible cooling water pipe for motor vehicles Expired - Lifetime DE19535489C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1995135489 DE19535489C2 (en) 1995-09-23 1995-09-23 Flexible cooling water pipe for motor vehicles
PCT/EP1996/003812 WO1997011300A1 (en) 1995-09-23 1996-08-30 Flexible cooling water hose for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995135489 DE19535489C2 (en) 1995-09-23 1995-09-23 Flexible cooling water pipe for motor vehicles

Publications (2)

Publication Number Publication Date
DE19535489C1 DE19535489C1 (en) 1997-01-23
DE19535489C2 true DE19535489C2 (en) 2003-08-21

Family

ID=7773033

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995135489 Expired - Lifetime DE19535489C2 (en) 1995-09-23 1995-09-23 Flexible cooling water pipe for motor vehicles

Country Status (2)

Country Link
DE (1) DE19535489C2 (en)
WO (1) WO1997011300A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10311500A1 (en) * 2003-03-15 2004-09-30 Cooper-Standard Automotive (Deutschland) Gmbh Pipe, especially flexible cooling water pipe
GB2439337A (en) * 2006-06-19 2007-12-27 Glynwed Pipe Systems Ltd Multi-layered pipe for potable water
DE202011103017U1 (en) * 2011-07-08 2012-10-15 Rehau Ag + Co. Disinfection-resistant multi-layer composite pipe
DE202012104423U1 (en) * 2012-11-16 2014-02-17 Rehau Ag + Co. Flexible hose with a multi-layered wall
EP3482987B1 (en) * 2018-03-13 2020-05-13 TI Automotive (Fuldabrück) GmbH Use of a pipeline for tempering

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017273A1 (en) * 1989-05-29 1990-12-06 Tokai Rubber Ind Ltd RUBBER LAYERED
EP0436923A2 (en) * 1990-01-09 1991-07-17 Ems-Inventa Ag Flexible coolant hoses
EP0618390A1 (en) * 1993-04-02 1994-10-05 Hüls Aktiengesellschaft Multi-layered plastic pipe
EP0649739A1 (en) * 1993-10-25 1995-04-26 Hüls Aktiengesellschaft Multilayered plastic hose
EP0673762A2 (en) * 1994-03-24 1995-09-27 Hüls Aktiengesellschaft Multilayered plastic pipe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2742579B2 (en) * 1986-02-01 1998-04-22 臼井国際産業 株式会社 Flexible composite hose
JPH085167B2 (en) * 1992-01-06 1996-01-24 パイロット インダストリーズ、インコーポレイテッド Fluoropolymer composite tube and method of manufacturing the same
JP2578705B2 (en) * 1992-03-30 1997-02-05 東海ゴム工業株式会社 Resin tube for fuel pipe and method of manufacturing the same
EP0637509B1 (en) * 1993-08-03 2002-10-23 Nitta Moore Company A tube for fuel transportation
DE4326130A1 (en) * 1993-08-04 1995-02-09 Huels Chemische Werke Ag Thermoplastic multilayer composites
DE29502264U1 (en) * 1995-02-13 1995-06-29 Deutsche Tecalemit GmbH, 33659 Bielefeld Multi-layer plastic tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017273A1 (en) * 1989-05-29 1990-12-06 Tokai Rubber Ind Ltd RUBBER LAYERED
EP0436923A2 (en) * 1990-01-09 1991-07-17 Ems-Inventa Ag Flexible coolant hoses
EP0618390A1 (en) * 1993-04-02 1994-10-05 Hüls Aktiengesellschaft Multi-layered plastic pipe
EP0649739A1 (en) * 1993-10-25 1995-04-26 Hüls Aktiengesellschaft Multilayered plastic hose
EP0673762A2 (en) * 1994-03-24 1995-09-27 Hüls Aktiengesellschaft Multilayered plastic pipe

Also Published As

Publication number Publication date
WO1997011300A1 (en) 1997-03-27
DE19535489C1 (en) 1997-01-23

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8327 Change in the person/name/address of the patent owner

Owner name: SIEBE FLUID SYSTEMS GMBH, 89601 SCHELKLINGEN, DE

8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: SIEBE AUTOMOTIVE (DEUTSCHLAND) GMBH, 89601 SCHELKL

8327 Change in the person/name/address of the patent owner

Owner name: COOPER-STANDARD AUTOMOTIVE (DEUTSCHLAND) GMBH, 896

8305 Restricted maintenance of patent after opposition
R071 Expiry of right