WO2019008489A1 - Conduite de fluide de véhicule automobile - Google Patents

Conduite de fluide de véhicule automobile Download PDF

Info

Publication number
WO2019008489A1
WO2019008489A1 PCT/IB2018/054865 IB2018054865W WO2019008489A1 WO 2019008489 A1 WO2019008489 A1 WO 2019008489A1 IB 2018054865 W IB2018054865 W IB 2018054865W WO 2019008489 A1 WO2019008489 A1 WO 2019008489A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
pressure compensation
compensation element
ice pressure
fluid line
Prior art date
Application number
PCT/IB2018/054865
Other languages
English (en)
Inventor
Andre Häckel
Original Assignee
TI Automotive (Fuldabrück) 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 TI Automotive (Fuldabrück) GmbH filed Critical TI Automotive (Fuldabrück) GmbH
Publication of WO2019008489A1 publication Critical patent/WO2019008489A1/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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines

Definitions

  • the present disclosure relates to a motor vehicle fluid line, wherein the fluid line has at least one fluid channel and a wall enclosing the fluid channel. Moreover, the present disclosure relates to a fluid connector for connecting motor vehicle fluid lines.
  • the motor vehicle fluid line according to the present disclosure and the fluid connector according to the present disclosure are used in particular for conducting at least one fluid medium.
  • the present disclosure is based on the technical problem of specifying a motor vehicle fluid line of the type mentioned at the outset, in which the above- described problems and disadvantages can be avoided in an effective and functionally-reliable manner and in which in particular damage or destruction of the pipeline upon freezing of the fluid can be avoided in a simple and functionally-reliable manner and with low structural expenditure. Moreover, the present disclosure is based on the technical problem of specifying a fluid connector having the above-described properties.
  • the present disclosure teaches a motor vehicle fluid line, wherein the fluid line has at least one fluid channel and a wall enclosing the fluid channel, wherein at least one thread-shaped or strand-shaped ice pressure compensation element made of a compressible material is arranged in the fluid channel and wherein the length I of the ice pressure compensation element is more than twice as large, preferably more than three times as large as the diameter or the largest diameter dK of the ice pressure compensation element.
  • the at least one ice pressure compensation element consists of a compressible material.
  • the ice pressure compensation element is thus compressible and/or deformable and preferably reversibly compressible and/or deformable.
  • Length I of the ice pressure compensation element means, in the scope of the present disclosure, in particular the greatest extension of the ice pressure compensation element along its longitudinal axis, specifically in the uncompressed state.
  • the length I relates to the stretched or elongated and in particular linearly stretched or elongated state, which preferably means in this case an unstretched or relaxed state of the compensation element in the longitudinal direction.
  • Stretched or elongated state furthermore in particular means a state of the ice pressure compensation element in which the ice pressure compensation element is not arranged in a wavy or spiral manner or the like.
  • the ice pressure compensation element extends with at least the majority of its length I in the longitudinal direction of the fluid channel.
  • the ice pressure element particularly preferably extends with at least 55% and very particularly preferably with at least 60% of its length I in the longitudinal direction of the fluid channel.
  • Longitudinal direction of the fluid channel means in particular the direction which extends along the longitudinal axis L of the fluid line. It is advantageous for the part of the length I of the ice pressure compensation element extending in the longitudinal direction of the fluid channel to be arranged parallel or essentially parallel to the longitudinal direction of the fluid channel or the longitudinal axis L of the fluid line.
  • One preferred embodiment of the present disclosure is characterized in that the at least one ice pressure compensation element extends over the entire length of the fluid line or substantially over the entire length of the fluid line. This embodiment is based on the finding that a particularly effective compensation of the ice pressure by compression of the ice pressure compensation element can then take place over the entire length of the fluid line.
  • the ice pressure compensation element only extends regionally over the length of the fluid line. It is advantageous for multiple ice pressure compensation elements to then be arranged in the at least one fluid channel of the fluid line, and these ice pressure compensation elements to each particularly preferably extend regionally over the length of the fluid line.
  • ice pressure compensation elements are arranged in the at least one fluid channel of the fluid line, these ice pressure compensation elements can be arranged regionally overlapping. However, it is also in principle in the scope of the present disclosure that upon arrangement of multiple ice pressure compensation elements in the at least one fluid channel of the fluid line, the ice pressure compensation elements do not overlap. It is possible in this embodiment variant that one compensation-element-free intermediate space is located or compensation-element-free intermediate spaces are located between the individual ice pressure compensation elements.
  • the at least one ice pressure compensation element is compressed in particular in the radial direction or substantially in the radial direction of the fluid channel upon freezing of the fluid guided in the fluid channel.
  • the ice pressure compensation element is preferably compressed such that the ratio of the volume of the ice pressure compensation element in the compressed state to the volume of the ice pressure compensation element in the uncompressed state is 0.1 to 0.9, preferably 0.2 to 0.8, and particularly preferably 0.3 to 0.7.
  • the internal volume of the fluid channel available to the fluid guided in the fluid channel can advantageously be enlarged by compression of the at least one ice pressure compensation element, preferably by compression in the radial direction or substantially in the radial direction of the fluid channel.
  • the compression of the ice pressure compensation element takes place in the scope of the present disclosure in particular as a result of the freezing of the fluid guided in the fluid channel and this compression causes as recommended an enlargement of the internal volume available to the fluid in the fluid channel. In this manner, a volume increase and/or pressure increase in the fluid line as a result of the freezing of the fluid guided in the fluid channel can be compensated for.
  • the at least one ice pressure compensation element has a porous structure.
  • the pores are preferably pores which are closed below the outer surface of the ice pressure compensation element and/or within the ice pressure compensation element.
  • the surface of the ice pressure compensation element is advantageously formed closed and/or is formed by a closed outer skin.
  • An embodiment has particularly proven itself in which the ice pressure compensation element is formed based on a closed-cell, foamed EPDM plastic. Other materials and structures of the ice pressure compensation element also come into consideration in principle, wherein the ice pressure compensation element is compressible in any case.
  • One recommended embodiment of the motor vehicle fluid line according to the present disclosure is distinguished in that the fluid line is designed as a heatable fluid line.
  • the heating of the motor vehicle fluid line can be performed, for example, by electrical heating means such as heating wires, planar heating means, or the like.
  • the at least one ice pressure compensation element is fixed at at least one end, preferably at a first end, on the wall of the fluid line.
  • the second end of the ice pressure compensation element is advantageously arranged freely floating and/or unfixed in the fluid line or in the fluid channel.
  • a thread-shaped or strand-shaped ice pressure compensation element is preferably fixed in this case at a first end on the wall of the fluid line and the second end of the ice pressure compensation element is then in particular arranged freely floating and/or unfixed in the fluid line or in the fluid channel.
  • the ice pressure compensation element can preferably assume various arrangements in the fluid channel of the fluid line or can orient itself in different ways.
  • the fact that the second end of the ice pressure compensation element is arranged freely floating and/or unfixed furthermore has the advantage that the ice pressure compensation element adapts itself to a certain extent to the flow of the fluid and therefore hardly opposes this flow with flow resistance.
  • both ends or all ends of the ice pressure compensation element are fixed on the wall of the fluid line.
  • the at least one separate ice pressure compensation element is fixed at at least one end, preferably at one end, on the fluid connector. In this manner, a discharge of the ice pressure compensation element by the fluid flow out of the flow connector is prevented.
  • At least the second end of the ice pressure compensation element is advantageously arranged freely floating and/or unfixed.
  • At least the second end of the separate ice pressure compensation element is preferably arranged freely floating and/or unfixed in the fluid channel of the fluid connector.
  • the unfixed and/or freely floating end of the separate ice pressure compensation element is arranged in the fluid channel of a fluid line connected to the fluid connector.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne une conduite de fluide et un connecteur qui évite d'endommager ou de détruire un pipeline lors de la congélation du fluide d'une manière simple et fonctionnellement fiable avec une faible dépense structurelle. Une conduite de fluide (1) ayant au moins un canal de fluide (2) et une paroi (3) entourant le canal de fluide, comprend au moins un élément de compensation de pression provoquée par le gel en forme de fil ou de brin (4) constitué d'un matériau compressible. L'élément de compensation (4) est disposé dans le canal de fluide et la longueur I de l'élément de compensation de pression provoquée par le gel est de préférence plus de deux fois plus grande que le diamètre de l'élément de compensation de pression provoquée par le gel.
PCT/IB2018/054865 2017-07-05 2018-06-29 Conduite de fluide de véhicule automobile WO2019008489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202017104003.8 2017-07-05
DE202017104003.8U DE202017104003U1 (de) 2017-07-05 2017-07-05 Kraftfahrzeug-Fluidleitung

Publications (1)

Publication Number Publication Date
WO2019008489A1 true WO2019008489A1 (fr) 2019-01-10

Family

ID=59651068

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/054865 WO2019008489A1 (fr) 2017-07-05 2018-06-29 Conduite de fluide de véhicule automobile

Country Status (2)

Country Link
DE (1) DE202017104003U1 (fr)
WO (1) WO2019008489A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11486529B2 (en) 2018-07-13 2022-11-01 Voss Automotive Gmbh Connection assembly, in particular for conducting aqueous urea solutions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018104739A1 (de) * 2018-03-01 2019-09-05 Norma Germany Gmbh Leitungsverbinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009906A (en) * 1994-06-29 2000-01-04 Salazar; Dennis R. Method and apparatus for preventing pipe damage
FR2900217A1 (fr) * 2006-04-25 2007-10-26 Nobel Plastiques Soc Par Actio Tuyau de transport de fluide a organe compressible de compensation et troncon de circuit de transport de fluide.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009906A (en) * 1994-06-29 2000-01-04 Salazar; Dennis R. Method and apparatus for preventing pipe damage
FR2900217A1 (fr) * 2006-04-25 2007-10-26 Nobel Plastiques Soc Par Actio Tuyau de transport de fluide a organe compressible de compensation et troncon de circuit de transport de fluide.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11486529B2 (en) 2018-07-13 2022-11-01 Voss Automotive Gmbh Connection assembly, in particular for conducting aqueous urea solutions

Also Published As

Publication number Publication date
DE202017104003U1 (de) 2017-07-27

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