US20090238547A1 - Heatable fluid line with a heating power which can be set - Google Patents

Heatable fluid line with a heating power which can be set Download PDF

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Publication number
US20090238547A1
US20090238547A1 US12/407,356 US40735609A US2009238547A1 US 20090238547 A1 US20090238547 A1 US 20090238547A1 US 40735609 A US40735609 A US 40735609A US 2009238547 A1 US2009238547 A1 US 2009238547A1
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US
United States
Prior art keywords
fluid line
heating
heating conductors
line according
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.)
Abandoned
Application number
US12/407,356
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English (en)
Inventor
Olav Borgmeier
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.)
Voss Automotive GmbH
Original Assignee
Voss Automotive GmbH
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Filing date
Publication date
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Application filed by Voss Automotive GmbH filed Critical Voss Automotive GmbH
Assigned to VOSS AUTOMOTIVE GMBH reassignment VOSS AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BORGMEIER, OLAV
Publication of US20090238547A1 publication Critical patent/US20090238547A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/35—Ohmic-resistance heating
    • F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons

Definitions

  • the present invention relates to a heatable fluid line having a heating line comprising a conduit and an electrical heating element which is arranged, in particular, on the circumference of the conduit, a particular heating power being able to be set.
  • a fluid line is disclosed in EP 1 764 541.
  • at least one electrical heating conductor and at least two electrical supply lines are arranged on the circumference of the conduit such that they run in the longitudinal direction of the conduit, the heating conductor being alternately electrically connected to one of the two power supply lines, to be precise alternately to the positive pole and negative pole of the supply voltage.
  • the connecting points are at equal distances behind one another, as seen in the longitudinal direction of the conduit.
  • the electrical heating conductor is connected to the supply lines by means of soldering, welding or crimping, for example. As a result of this configuration, the fluid line has a constant heating power per unit length.
  • the present invention is based on the object of avoiding the above disadvantages and providing a heatable fluid line in which the desired heating power per unit length can be adapted to the respective application before the fluid line is installed, but it is still possible to prefabricate the fluid lines in any desired length.
  • the heating element comprises at least three heating conductors which are electrically insulated from one another and run along the longitudinal direction of the conduit, and the ends of the electrical heating conductors are connected to one another and can be connected to an electrical supply voltage in such a manner that a plurality of heating conductors are connected in series and/or in parallel such that, for a particular supply voltage, the heating power of the fluid line is determined by the total electrical resistance of the electrical heating conductors.
  • the present invention makes it possible for the available electrical heating conductors to be connected in any desired manner such that a total electrical resistance which is suitable for the required heating power is set.
  • the present invention also relates to a heating line for use in a fluid line according to the invention.
  • a heating line according to the invention four metal wires, which are provided with electrical insulation, are advantageously arranged as electrical heating conductors on the circumference of the conduit in the longitudinal direction. Arranging four electrical heating conductors on the circumference of the conduit results in twenty six different possible circuits as a parallel and/or series connection of the individual electrical heating conductors, with the result that twenty six different total electrical resistance values can be set, as a result of which there is a wide range of variation in the heating power which can be respectively achieved.
  • the electrical heating conductors may also be integrated inside the wall of the conduit.
  • the electrical heating conductors may also run inside the conduit, for example in the form of a twisted conductor bundle.
  • the wide range of variation in the adaptability of the fluid line according to the invention to a wide variety of heating powers is also improved by virtue of at least one of the heating conductors, preferably all of the heating conductors, having an electrical resistance per unit length which differs from the electrical resistance per unit length of the other heating conductors.
  • the electrical resistance of the individual heating conductors per unit length can be changed, on the one hand, by means of an appropriate selection of materials and/or by changing the conductor cross section. In the event of the individual electrical heating conductors having different resistances, it is expedient if corresponding color coding of the heating conductors is provided.
  • FIG. 1 shows a first embodiment of a fluid line according to the invention
  • FIG. 2 shows a basic illustration of another embodiment of a heating line according to the invention for use in a fluid line as shown in FIG. 1 ,
  • FIG. 3 shows a basic view of an alternative embodiment of a heating line according to the invention for use in a fluid line as shown in FIG. 1 ,
  • FIG. 4 shows a calculation table for determining the total electrical resistance of a fluid line according to the invention having four electrical heating conductors per conduit.
  • a heatable fluid line comprises a heating line 1 comprising a conduit 2 , on the circumference of which an electrical heating element, which comprises four individual electrical heating conductors 3 , 4 , 5 , 6 in the exemplary embodiment illustrated, is arranged.
  • the heating conductors 3 , 4 , 5 , 6 are formed from individual electrical resistance wires. These individual resistance wires each have an electrical resistance R 3 , R 4 , R 5 , R 6 which is dependent on the electrical resistivity of the wire material and on the diameter of the wire and on the total length of the resistance wire wound around the conduit 2 .
  • the heating conductors 3 , 4 , 5 , 6 are wound around the conduit 2 in the form of a spiral parallel to one another and with a constant pitch.
  • the individual heating conductors 3 , 4 , 5 , 6 can be wound around the conduit 2 by machine, for example. This allows continuous winding.
  • the heating conductors 3 , 4 , 5 , 6 may be surrounded by an external protective layer 7 and this external protective layer 7 may be produced from a wound adhesive tape or from an extruded layer or from a plastic shrink tube. This external protective layer 7 forms external protection against damage and moisture.
  • the fluid line 1 according to the invention is preferably surrounded by an external protective sleeve 8 which is preferably formed by a corrugated pipe or a protective tube.
  • the external protective sleeve 8 is illustrated in the form of a corrugated pipe.
  • a circumferential air gap is preferably present between the external protective sleeve 8 and the protective layer 7 .
  • the electrical heating conductors 3 , 4 , 5 , 6 are preferably composed of metal but may likewise be produced from carbon material.
  • FIG. 2 illustrates another embodiment of a heating line according to the invention.
  • the electrical heating conductors 3 , 4 , 5 , 6 are arranged on the circumference of the conduit 2 such that they run in the longitudinal direction of the conduit 2 and parallel to the longitudinal axis of the latter.
  • the structure of the fluid line according to the invention with the heating line 1 illustrated in FIG. 2 corresponds to that shown in FIG. 1 .
  • FIG. 3 shows an alternative embodiment with regard to the arrangement of, for example, three heating conductors 3 , 4 , 5 on the circumference of the conduit 2 for the purpose of forming a heating line 1 .
  • the heating conductors 3 , 4 , 5 run in meandering fashion on the circumference of the conduit 2 in the longitudinal direction of the latter.
  • heating conductors 3 , 4 , 5 , 6 are respectively arranged on the circumference of the conduit 2 .
  • the heating conductors may have the same electrical resistance or else have a respectively different electrical resistance.
  • the electrical resistance of the heating conductors is determined, on the one hand, by the selection of materials and, on the other hand, by the length and cross section of the individual heating conductors.
  • the individual heating conductors have a different electrical resistance, it is expedient if the individual heating conductors have corresponding color coding such that a visual check is possible and it is possible to discern which of the individual heating conductors have the same electrical resistance or a different electrical resistance.
  • the inventive design of the heating line 1 or fluid line enables continuous manufacture, with the result that cost-effective production and storage is possible.
  • the fluid line according to the invention is able to generate a particular heating power.
  • This heating power is dependent on the available supply voltage which, for example in a motor vehicle, comprises a vehicle electrical system voltage of 12 volts DC.
  • This heating power is also dependent on the electrical resistance of the individual heating conductors and the total electrical resistance of the heating conductors. Depending on the medium to be respectively heated, it is necessary for a particular heating power to always be able to be generated per unit length of the fluid line according to the invention.
  • the invention now provides for the ends of the individual heating conductors 3 , 4 , 5 , 6 to be connected to one another and to the supply voltage in such a manner that the individual heating conductors are connected in series and/or in parallel such that, for the predefined supply voltage, the heating power of the fluid line is determined by the total electrical resistance of all heating conductors.
  • FIG. 4 uses a table to illustrate, for example, how resistance cascading is possible, in the case of a four-conductor concept, that is to say the presence of four heating conductors 3 , 4 , 5 , 6 which are wound around the conduit 2 in the form of a spiral with a constant pitch, by connecting the individual heating conductors 3 , 4 , 5 , 6 in parallel and/or in series.
  • the heating conductor 3 has a resistance R 3 of 20 ohms
  • the heating conductor 4 has a resistance R 4 of 13 ohms
  • the heating conductor 5 has a resistance R 5 of 10 ohms
  • the heating conductor 6 has a resistance R 6 of 3 ohms.
  • the pitch of the spiral winding of the individual heating conductors 3 , 4 , 5 , 6 is 30°, from which a length factor per m of 1.178 is calculated.
  • the resistance R 3 , R 4 , R 5 , R 6 per m of the individual heating conductors 3 , 4 , 5 , 6 which is dictated by the material and diameter, is 16.978 ohms in the heating conductor 3 , 11.036 ohms in the heating conductor 4 , 8.489 ohms in the heating conductor 5 and 2.547 ohms in the heating conductor 6 .
  • the table illustrates the individual possible ways of connecting the individual heating conductors 3 , 4 , 5 , 6 , p being used to indicate a parallel connection of the heating conductors 3 , 4 , 5 , 6 and + being used to indicate a series connection of the individual heating conductors 3 , 4 , 5 , 6 .
  • a combination p 1 -p 1 or p 2 -p 2 indicates which resistances are connected in parallel with one another.
  • twenty six different combinations are possible, with the result that twenty six different total resistances can be set by connecting the individual heating conductors 3 , 4 , 5 , 6 of the heating conductors 3 , 4 , 5 , 6 in parallel and/or in series.
  • the smallest resistance value of the overall circuit results when the heating conductors 3 , 4 , 5 are connected in parallel with one another and the heating conductor 6 is connected in series with this parallel connection of the three heating conductors, and the highest resistance of the heating conductors 3 , 4 , 5 , 6 results when all heating conductors are connected in series with one another.
  • the end of the series and/or parallel circuit comprising the individual heating conductors 3 , 4 , 5 , 6 is respectively connected to the supply voltage by means of appropriate connecting lines.
  • At least one electrical connecting line for the voltage supply is provided in the fluid line according to the invention such that it runs along the pipeline 2 .
  • This electrical connecting line is surrounded by electrical insulation.
  • a fluid line according to the invention which is provided with standardized winding of individual heating conductors 3 , 4 , 5 , 6 , and it is possible to set the necessary heating power on the basis of the desired length of the fluid line by means of appropriate instructions for connecting the individual heating conductors 3 , 4 , 5 , 6 .
  • the same heating power can also always be set in this manner for each unit length which has been cut to length.
  • the present invention is not restricted to the exemplary embodiments illustrated and described but rather also comprises all embodiments which have the same effect in the sense of the invention.
  • the invention has hitherto not yet been restricted to the combination of features defined in the respective independent claim either but rather may also be defined by any other desired combination of particular features of all the individual features disclosed as a whole. This means that, in principle, virtually any individual feature of the respective independent claim may be omitted or may be replaced with at least one individual feature disclosed at another point in the application. In this respect, the claims should be understood as merely a first attempt at formulating an invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)
US12/407,356 2008-03-19 2009-03-19 Heatable fluid line with a heating power which can be set Abandoned US20090238547A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008003908.8 2008-03-19
DE202008003908U DE202008003908U1 (de) 2008-03-19 2008-03-19 Beheizbare Fluidleitung mit einstellbarer Heizleistung

Publications (1)

Publication Number Publication Date
US20090238547A1 true US20090238547A1 (en) 2009-09-24

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US (1) US20090238547A1 (de)
DE (2) DE202008003908U1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011085154A1 (en) * 2010-01-08 2011-07-14 Parker-Hannifin Corporation Electrically-heated hose assembly for selective catalytic reduction (scr) systems
JP2013535625A (ja) * 2010-07-23 2013-09-12 フォス・アウトモーティヴ・ゲー・エム・ベー・ハー 加熱可能な媒体パイプ
US20130330065A1 (en) * 2010-12-08 2013-12-12 Otfried Schwarzkopf Heatable fluid line, use thereof and method for producing same
US20140270730A1 (en) * 2013-03-14 2014-09-18 R.J. Reynolds Tobacco Company Atomizer for an aerosol delivery device formed from a continuously extending wire and related input, cartridge, and method
US20160081140A1 (en) * 2013-04-23 2016-03-17 Kima Heating Cable Ab Power controlled heating system
CN107409441A (zh) * 2015-03-31 2017-11-28 福士汽车配套部件责任有限公司 加热的介质管路
US20180231150A1 (en) * 2015-08-10 2018-08-16 National Oilwell Varco Denmark I/S Unbonded flexible pipe
US10396500B2 (en) 2016-08-31 2019-08-27 Norma U.S. Holding Llc Electrically conductive conduit assembly
US20200399874A1 (en) * 2019-02-25 2020-12-24 University Of Virginia Patent Foundation System and method for disinfection of a plumbing system associated with liquid waste
US20210229525A1 (en) * 2020-01-27 2021-07-29 Röchling Automotive SE & Co. KG Conduit component for a motor vehicle having demand-compatibly dimensioned integrated electrical leads
US11234463B2 (en) 2014-02-28 2022-02-01 Rai Strategic Holdings, Inc. Atomizer for an aerosol delivery device and related input, aerosol production assembly, cartridge, and method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032189B4 (de) 2010-07-23 2024-07-25 Voss Automotive Gmbh Verfahren zum Herstellen einer beheizbaren Medienleitung und beheizbare Medienleitung, hergestellt nach dem Verfahren
DE102011007817A1 (de) * 2011-04-20 2012-10-25 Webasto Ag Elektrische Heizung, Fahrzeug mit elektrischer Heizung sowie Verfahren zum Steuern einer elektrischen Heizung
DE102011120357A1 (de) * 2011-12-07 2013-06-13 Voss Automotive Gmbh Konfektionierte beheizbare Medienleitung mit einer Medienleitung mit zumindest zwei auf deren Außenseite angeordneten Heizelementen und Verfahren zu ihrer Herstellung
DE102017110258B3 (de) * 2017-05-11 2018-11-08 Sim Scientific Instruments Manufacturer Gmbh Chemisches Analysegerät mit einer Mediumaufbereitungseinheit und Mediumaufbereitungseinheit
CA3216120A1 (en) * 2021-06-03 2022-12-08 Sahil GUPTA Heater hose with multi-voltage functionality and constant power output

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044846A1 (de) 2005-09-20 2007-03-29 Dbk David + Baader Gmbh Elektrische Heizvorrichtung, beheizbarer Schlauch und Herstellungsverfahren derselben

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011085154A1 (en) * 2010-01-08 2011-07-14 Parker-Hannifin Corporation Electrically-heated hose assembly for selective catalytic reduction (scr) systems
JP2013535625A (ja) * 2010-07-23 2013-09-12 フォス・アウトモーティヴ・ゲー・エム・ベー・ハー 加熱可能な媒体パイプ
US20130330065A1 (en) * 2010-12-08 2013-12-12 Otfried Schwarzkopf Heatable fluid line, use thereof and method for producing same
US9360147B2 (en) * 2010-12-08 2016-06-07 Voss Automotive Gmbh Heatable fluid line, use thereof and method for producing same
US20140270730A1 (en) * 2013-03-14 2014-09-18 R.J. Reynolds Tobacco Company Atomizer for an aerosol delivery device formed from a continuously extending wire and related input, cartridge, and method
US9277770B2 (en) * 2013-03-14 2016-03-08 R. J. Reynolds Tobacco Company Atomizer for an aerosol delivery device formed from a continuously extending wire and related input, cartridge, and method
US10306924B2 (en) 2013-03-14 2019-06-04 Rai Strategic Holdings, Inc. Atomizer for an aerosol delivery device formed from a continuously extending wire and related input, cartridge, and method
US20160081140A1 (en) * 2013-04-23 2016-03-17 Kima Heating Cable Ab Power controlled heating system
US10098185B2 (en) * 2013-04-23 2018-10-09 Kima Heating Cable Ab Power controlled heating system
US11234463B2 (en) 2014-02-28 2022-02-01 Rai Strategic Holdings, Inc. Atomizer for an aerosol delivery device and related input, aerosol production assembly, cartridge, and method
CN107409441A (zh) * 2015-03-31 2017-11-28 福士汽车配套部件责任有限公司 加热的介质管路
US11480284B2 (en) * 2015-03-31 2022-10-25 Voss Automotive Gmbh Heated media line
US20180231150A1 (en) * 2015-08-10 2018-08-16 National Oilwell Varco Denmark I/S Unbonded flexible pipe
US10396500B2 (en) 2016-08-31 2019-08-27 Norma U.S. Holding Llc Electrically conductive conduit assembly
US20200399874A1 (en) * 2019-02-25 2020-12-24 University Of Virginia Patent Foundation System and method for disinfection of a plumbing system associated with liquid waste
US20210229525A1 (en) * 2020-01-27 2021-07-29 Röchling Automotive SE & Co. KG Conduit component for a motor vehicle having demand-compatibly dimensioned integrated electrical leads

Also Published As

Publication number Publication date
DE202008003908U1 (de) 2009-08-06
DE102009008896A1 (de) 2009-10-01

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Date Code Title Description
AS Assignment

Owner name: VOSS AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BORGMEIER, OLAV;REEL/FRAME:022421/0341

Effective date: 20090209

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION