JPS63289390A - Duct for automobile for guiding alcohol medium - Google Patents

Duct for automobile for guiding alcohol medium

Info

Publication number
JPS63289390A
JPS63289390A JP63104451A JP10445188A JPS63289390A JP S63289390 A JPS63289390 A JP S63289390A JP 63104451 A JP63104451 A JP 63104451A JP 10445188 A JP10445188 A JP 10445188A JP S63289390 A JPS63289390 A JP S63289390A
Authority
JP
Japan
Prior art keywords
polyamide
tube
alcohol
guiding
conduit
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.)
Granted
Application number
JP63104451A
Other languages
Japanese (ja)
Other versions
JPH0674871B2 (en
Inventor
エルヴィン、ブルンホーファー
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.)
Technoform Caprano and Brunnhofer GmbH and Co KG
Original Assignee
Technoform Caprano and Brunnhofer GmbH and Co KG
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 Technoform Caprano and Brunnhofer GmbH and Co KG filed Critical Technoform Caprano and Brunnhofer GmbH and Co KG
Publication of JPS63289390A publication Critical patent/JPS63289390A/en
Publication of JPH0674871B2 publication Critical patent/JPH0674871B2/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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • 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
    • F16L2011/047—Hoses, i.e. flexible pipes made of rubber or flexible plastics with a diffusion barrier layer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、アルコール媒体を案内するための自動車用管
路から出発する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of Application The invention starts from motor vehicle lines for guiding alcoholic media.

自動車用管路は、管路が生産的に自動車中に取付けられ
るという事実に指摘される。しかし、この管路は、事後
に管理または修理の過程で導入することもてきる。アル
コール媒体の概念は、第１にアルコール添加剤を有する
燃料ならびに主としてアルコールからなる燃料を表わす
。しかし、アルコール媒体、ひいては管路は、自動車の
燃料系統に所属させる必要はない。その限りにおいて、
アルコール媒体の概念は、フロントガラスのワイパー液
ならびに圧縮空気プレーキ系統の圧縮媒体をも表わす。Automotive conduits are pointed to the fact that conduits are productively installed in motor vehicles. However, this conduit can also be introduced later in the course of maintenance or repair. The concept of alcoholic medium primarily refers to fuels with alcoholic additives as well as fuels consisting primarily of alcohol. However, the alcohol medium and thus the line need not belong to the fuel system of the motor vehicle. To that extent,
The concept of alcoholic medium also refers to windshield wiper fluids as well as the compressed medium of compressed air brake systems.

周知のように、凝縮液の凍結を阻止する目的で、圧縮空
気ブレーキ系統中にアルゴールは導入される。アルコー
ルは、本発明の範囲内で、殊にメチルアルコールおよび
エチルアルコールならびにそれと水との混合物を意味す
る。As is well known, algol is introduced into compressed air brake systems for the purpose of preventing condensate from freezing. Alcohol means within the scope of the invention in particular methyl alcohol and ethyl alcohol and their mixtures with water.

従来の技術 ポリアミドからなる公知の自動車用管路は、自動車工業
界で要望されている要件の規格化された目録を充足する
ものである。この公知の自動車用管路は、ＤＩＮ　　７
３３７８およびＤＩＮ７４’３２４に包括されている。BACKGROUND OF THE INVENTION Known automotive conduits made of polyamide meet a standardized list of requirements desired by the automotive industry. This known automotive conduit is DIN 7
3378 and DIN 74'324.

公知の自動車用管路は、案内される媒体がアルールを含
有していない限りにおいて有効であることが証明された
。しかし、アルコールが存在する場合には、支障のある
効果が現われる：ボリアミドは、膨潤され、この場合５
〜１０％の寸法の拡大が起こる。しかも、ポリアミドは
、アルコールによって抽出され、すなわち加工助剤、安
定剤、単量体および可塑剤は、溶は出し、かつ媒体のア
ルコール中に移動する。その」−１この抽出により管の
性質は変化する。また、ポリアミドは、アルコールに対
して僅かな拡散濃度を有する。The known motor vehicle conduits have proven to be effective insofar as the guided medium does not contain allure. However, in the presence of alcohol, a detrimental effect appears: the polyamide is swollen, in this case 5
A ~10% dimensional expansion occurs. Moreover, the polyamide is extracted with alcohol, ie processing aids, stabilizers, monomers and plasticizers are leached out and transferred into the alcohol medium. -1 This extraction changes the properties of the tube. Polyamides also have a low diffusion concentration with respect to alcohol.

ブレーキ系統に属する自動車用管路は、重要であり、こ
の場合ブレーキ用媒体には、凍結防止の理由からアルコ
ールが添加され、したがって抽出に基づいて膨潤された
パツキン部材および弁座上での粘着性の付着物による散
在的な支障が起こる。その限りにおいて、アルコールは
可塑剤をポリアミド管から溶出させ、この可塑剤−アル
コール混合物はパツキン部材を攻撃し、かつ可塑剤は、
粘着性の残滓として別の個所、殊に弁座上にも堆積され
ることが推測される。The automotive lines belonging to the brake system are important, in this case the brake medium is added with alcohol for anti-freezing reasons, and therefore swells due to extraction and stickiness on the packing parts and valve seats. Scattered problems due to deposits occur. Insofar, the alcohol dissolves the plasticizer from the polyamide tube, this plasticizer-alcohol mixture attacks the packing parts, and the plasticizer
It is assumed that sticky residues are also deposited in other locations, in particular on the valve seat.

自動重用管路には、ポリアミドの代わりに別の、すなわ
ち耐アルコール性のプラスチックを使用することが考え
られる。しかし、このプラスチックは、自動車工業界で
自動車用管路に課されている要件の首記した規格化され
た目録をしばしば充足させるものではない。It is conceivable to use other, alcohol-resistant plastics instead of polyamide for automatic heavy-duty pipelines. However, these plastics often do not meet the standardized catalog of requirements imposed on automotive ductwork by the automotive industry.

発明を達成するための手段 ３一 本発明の目的は、ポリアミドからなり、その上耐アルコ
ール性である限りにおいて、自動車工業界で課されてい
る要件の規格化された目録を充足させる自動車用管路を
得ることである。Means for Accomplishing the Invention 3 - The object of the present invention is to provide an automotive pipe which, insofar as it is made of polyamide and is also alcohol-resistant, satisfies the standardized list of requirements imposed by the automotive industry. It's about getting a path.

本発明の対象は、少なくとも１つのポリアミド管と、同
時押出の方法でポリアミド管と結合されている、管の内
側で閉鎖された、管壁の厚さに比して薄いポリオレフィ
ンからの被覆とからなる、アルコール媒体を案内するた
めの自動車用管路である。ポリアミド管は、本発明の範
囲内で有利に１〜２．５ｍｍの肉厚を有し、被覆は、０
．１〜０．２ｍｍの肉厚を有する。このような自動車用
管路の外径は、一般に４〜１６ｍｍの範囲内にある。本
発明によれば、依然としてポリアミド管を用いて作業さ
れ、このポリアミド管は、自動車工業界で課されている
要件の規格化された目録に十分であるような程度に寸法
決定されかつ調整されている。しかし、材料のポリアミ
ドは、ポリオレフィン層と内側で同時押出の方法で結合
されており、このボリオレフイン層は、意外なことに、
ポリアミド管の性質を所定の要件の規格化された目録に
関連して損なわず、耐アルコール性であり、かつ遮断層
を形成する。同時押出の方法で得られた複合体は、極端
な応力をも吸収するような程度に緊密である。The object of the present invention is to provide at least one polyamide tube and a coating of polyolefin, which is closed on the inside of the tube and is thin compared to the thickness of the tube wall, and which is connected to the polyamide tube in the manner of coextrusion. This is an automobile conduit for guiding an alcohol medium. The polyamide tube preferably has a wall thickness of 1 to 2.5 mm within the scope of the invention, and the coating preferably has a wall thickness of 0 to 2.5 mm.
．． It has a wall thickness of 1 to 0.2 mm. The outer diameter of such automotive conduits is generally in the range of 4 to 16 mm. According to the invention, it is still possible to work with polyamide tubes, which are dimensioned and adjusted to such an extent that they are sufficient for the standardized catalog of requirements imposed in the automotive industry. There is. However, the material polyamide is bonded internally with a polyolefin layer by means of coextrusion, and this polyolefin layer surprisingly
It does not impair the properties of polyamide tubes in connection with a standardized list of predetermined requirements, is alcohol-resistant and forms a barrier layer. The composites obtained by the method of coextrusion are so dense that they absorb even extreme stresses.

本発明の好ましい構成によれば、ポリアミド管は、ポリ
アミド６または６，６ないしはポリアミド１１または１
２からなる。ポリオレフィンは、プロピレンと、マレイ
ン酸とからの重合体からなる。少なくとも、ポリアミド
管は、本発明の範囲内で、可塑剤を有することができ、
したがってポリアミド管と、被覆とからなる集成体は、
ホース状で設置することができる。According to a preferred embodiment of the invention, the polyamide tube is made of polyamide 6 or 6,6 or polyamide 11 or 1
Consists of 2. Polyolefins consist of polymers of propylene and maleic acid. At least the polyamide tube can have a plasticizer within the scope of the invention,
Therefore, the assembly consisting of a polyamide tube and a covering is
Can be installed in the form of a hose.

実施例 次に、本発明を専ら実施例を示す図面につき詳説する。Example The invention will now be explained in more detail with reference to the drawings, which show exclusively exemplary embodiments.

図面に示した管１は、アルコール媒体を案内するための
自動車用管路に属する。アルコール媒体の概念は、本明
細書の導入部で詳説した。The pipe 1 shown in the drawing belongs to a motor vehicle line for guiding alcoholic media. The concept of alcoholic medium was explained in detail in the introduction to this specification.

管１は、ポリアミドと、同時押出の方法でポリアミド管
１と結合されている、管の内側で閉鎖された、管壁２の
厚さＤに比して薄いポリオレフィンからの被覆３とから
なる。この場合、ポリアミド管１は、肉厚りを有し、こ
の肉厚は、請求項２に記載された範囲内にある。このこ
とは、被覆３にも当てはまり、この被覆は、実施例にお
いて明示することを理由に誇張した厚さで示した。被覆
は、実施例において０．１ｍｍの内厚ｄを有する。ポリ
アミド管１の材料は、ポリアミド１２であることができ
る。このポリアミド管は、可塑剤を有することができる
。The tube 1 consists of polyamide and a covering 3 of polyolefin, which is closed on the inside of the tube and is thin compared to the thickness D of the tube wall 2, which is connected to the polyamide tube 1 in the manner of coextrusion. In this case, the polyamide tube 1 has a wall thickness, which wall thickness is within the range specified in claim 2. This also applies to coating 3, which is shown with an exaggerated thickness for clarity in the examples. The coating has an internal thickness d of 0.1 mm in the example. The material of the polyamide tube 1 can be polyamide 12. This polyamide tube can have a plasticizer.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明による自動車用管路の管の断面を示す
斜視図、かつ 第２図は、第１図による対象からの部分Ａを示す拡大図
である。FIG. 1 is a perspective view showing a cross section of a pipe of a conduit for an automobile according to the invention, and FIG. 2 is an enlarged view showing a part A from the object according to FIG.

Claims (1)

【特許請求の範囲】 １、少なくとも１つのポリアミド管（１）と、同時押出
の方法でポリアミド管（１）と結合されている、管の内
側で閉鎖された、管壁（２）の厚さ（Ｄ）に比して薄い
ポリオレフィンからの被覆（３）とからなる、アルコー
ル媒体を案内するための自動車用管路。 ２、ポリアミド管（１）が１〜２．５ｍｍの肉厚（Ｄ）
を有し、かつ被覆（３）が０．１〜０．２ｍｍの肉厚（
ｄ）を有する、請求項１記載の自動車用管路。 ３、ポリアミド管（１）がポリアミド６または６．６な
いしはポリアミド１１または１２からなる、請求項１ま
たは２記載の自動車用管路。 ４、ポリオレフィンがプロピレンとマレイン酸とからの
重合体である、請求項１から３までのいずれか１項に記
載の自動車用管路。 ５、少なくともポリアミド管（１）が可塑剤を有し、か
つポリアミド管と被覆（３）とからの集成体がホース状
に設置可能である、請求項１から４までのいずれか１項
に記載の自動車用管路。Claims: 1. At least one polyamide tube (1) and the thickness of the tube wall (2), closed inside the tube, which is connected to the polyamide tube (1) by the method of coextrusion. Motor vehicle conduit for guiding an alcoholic medium, consisting of a thinner coating (3) of polyolefin compared to (D). 2. Polyamide tube (1) has a wall thickness of 1 to 2.5 mm (D)
and the coating (3) has a wall thickness of 0.1 to 0.2 mm (
d) The motor vehicle conduit according to claim 1, comprising: d). 3. The conduit for a motor vehicle according to claim 1 or 2, wherein the polyamide pipe (1) is made of polyamide 6 or 6.6 or polyamide 11 or 12. 4. The conduit for an automobile according to any one of claims 1 to 3, wherein the polyolefin is a polymer of propylene and maleic acid. 5. According to one of claims 1 to 4, at least the polyamide tube (1) has a plasticizer and the assembly of the polyamide tube and the covering (3) can be installed in the form of a hose. automotive pipes.
JP63104451A 1987-05-08 1988-04-28 Automotive pipelines for guiding alcoholic media Expired - Lifetime JPH0674871B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3715251.3 1987-05-08
DE19873715251 DE3715251A1 (en) 1987-05-08 1987-05-08 MOTOR VEHICLE PIPELINE FOR GUIDING AN ALCOHOLIC MEDIUM

Publications (2)

Publication Number Publication Date
JPS63289390A true JPS63289390A (en) 1988-11-25
JPH0674871B2 JPH0674871B2 (en) 1994-09-21

Family

ID=6327034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63104451A Expired - Lifetime JPH0674871B2 (en) 1987-05-08 1988-04-28 Automotive pipelines for guiding alcoholic media

Country Status (6)

Country Link
JP (1) JPH0674871B2 (en)
DE (1) DE3715251A1 (en)
ES (1) ES2007825A6 (en)
FR (1) FR2614967B1 (en)
GB (1) GB2204376B (en)
IT (1) IT1217438B (en)

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US8534711B2 (en) 2004-12-17 2013-09-17 Tokai Rubber Industries, Ltd. Piping unit for transporting fuel
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Also Published As

Publication number Publication date
IT1217438B (en) 1990-03-22
JPH0674871B2 (en) 1994-09-21
DE3715251A1 (en) 1988-12-01
IT8820285A0 (en) 1988-04-21
GB8809267D0 (en) 1988-05-25
GB2204376A (en) 1988-11-09
ES2007825A6 (en) 1989-07-01
FR2614967A1 (en) 1988-11-10
GB2204376B (en) 1991-03-20
FR2614967B1 (en) 1990-03-09
DE3715251C2 (en) 1990-01-18

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