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
  • 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
• • 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
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/024—Woven fabric
• • 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
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
  • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
  • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
  • F01N3/2066—Selective catalytic reduction [SCR]
• • 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
• • 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
  • F16L11/22—Multi-channel hoses
• • 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
  • F16L53/32—Heating of pipes or pipe systems using hot fluids
• • 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
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
  • F01N2610/00—Adding substances to exhaust gases
  • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
  • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
  • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
  • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
  • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
  • F01N3/2066—Selective catalytic reduction [SCR]
  • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
• • 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
  • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
  • F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting

Definitions

• the invention relates to a line arrangement with at least one first line, which is designed as a UREA line, and with a second line for a liquid or gaseous medium.
• Line assemblies having first and second leads are known for various prior art applications. How to heat dissipation
• Refrigerant lines used which lead a liquid medium.
• relatively large-volume lines are used, are led away by the hot exhaust gases from the engine.
• UREA lines Due to legal regulations, however, it is necessary, even at low temperatures, in which UREA usually freezes, perform an exhaust aftertreatment. Therefore, it is common practice to heat the UREA lines by means of electrical heating elements either wrapped around the UREA lines in the form of heating wires or running inside the UREA line.
• Such a configuration is for example from US 2008 202 616 A1 or
• the object of the invention is to provide a line arrangement, which in one
• Motor vehicle allows a reliable heating of UREA in the first line even without additional electrical power supply.
• a line arrangement with at least one first line, which is designed as a UREA line, and with a second line for a liquid or gaseous medium, according to the invention, in that the first line and the second line are thermally coupled to one another, wherein the first line is wrapped around the second line or the second line around the first line.
• the line arrangement allows heating of the UREA line through the medium in the second line without additional electrical energy. It can be done by wrapping the one line with the other line over a longer distance and thus over a longer period of time, a temperature exchange between the flowing through the lines media.
• the second conduit has a larger diameter than the first conduit, wherein the diameter of the second conduit in particular more than four times, in particular more than eight times or more than ten times the diameter of corresponds to the first line.
• the medium in the second line compared to the UREA in the first line occupy a much larger volume and accordingly transport more heat energy.
• sufficient heat energy is available for heating the UREA so that a quick warm-up can be guaranteed.
• liquid media such as
• Cooling water of the motor vehicle to flow through the second line. Cooling water heats up relatively quickly during operation of the internal combustion engine and can then deliver sufficient heat energy to the guided in the first line UREA. An additional warming of the UREA in the first line is then usually not required.
• the first line is wound spirally or helically around the second line. The regular winding ensures even heating or cooling of UREA in the first line. Due to the slope of the helical or helical line can also be the length of the first line and thus the duration of the
• a fabric may be provided which holds the first conduit to the second conduit.
• the tissue thus fixes the first conduit in a desired position on the second conduit.
• the fabric can protect at least the first line from environmental influences such as mechanical stress.
• the first conduit may also be interwoven with the tissue so as to allow direct fixation of the first conduit to the second conduit.
• the fabric is a glass fiber fabric that provides sufficient stability and is easy to process.
• a glass fiber fabric is temperature insensitive and can thus be used over a wide temperature range.
• a protective sheath may be provided, which encloses the first and the second line and optionally the tissue.
• the protective jacket provides protection
• the protective jacket can a protective element, such as a clamp, attack the protective jacket can then prevent, for example, a pinching of the conduit assembly during clamping of the clamp.
• the protective jacket can form an insulation to the outside to reduce heat or cold loss.
• the protective jacket is formed, for example, as a shrink tube and / or has a Sch rümpf fabric.
• a tube or a protective jacket of such a tissue initially has a larger diameter than the second line with the order of these
• Sheath is reduced by passing the tube or tissue through, for example
• the protective jacket is then flat on the first and the second line and fixes them relative to each other.
• the protective sheath may alternatively be formed as a corrugated hose which is displaceable in particular relative to the first conduit. As a result, a high degree of flexibility or flexibility of the line arrangement can be achieved.
• FIG. 1 is a perspective view of a conduit arrangement
• FIG. 2 is a sectional view through the line arrangement of FIG. 1, 3a to 3c different embodiments of the first conduit;
• Fig. 4 shows another embodiment of the conduit arrangement.
• FIG. 1 shows a line arrangement 10.
• the line arrangement 10 has a first line 12, which is designed as a UREA line for UREA or a urea solution, and a second line 14 for a gaseous or liquid.
• the first conduit 12 is wrapped around the second conduit 14 in the circumferential direction U and thermally coupled thereto.
• a temperature exchange can take place between the UREA flowing through the first line 12 and the medium flowing through the second line 14, so that the UREA is tempered by the other medium.
• the line assembly 10 for example, in a vehicle with a
• UREA is a urea solution that is used to reduce nitrogen oxides in the exhaust gases of the particular diesel-powered internal combustion engine.
• the medium may be formed for example by hot exhaust gas of the internal combustion engine.
• another medium such as the usually used in the vehicle anyway for the engine waste heat cooling water can be used.
• the first line 12 is guided in a spiral or helical fashion, with the windings 16 of the first line 12 each having a constant gradient.
• the line 12 may be preformed in accordance with spiral or helixformig or only be brought by a winding process to the second line 16 in the corresponding spiral shape.
• the second line 14 has a relatively large cross section compared to the first line 12, so that a large volume of media can flow through the second line 14.
• the medium in the second line store a relatively large amount of heat energy, so that a rapid heating of the guided in the first line 12 UREAs is possible.
• the distance over which the first line 12 is thermally coupled to the second line is relatively long, so that a temperature exchange can take place over a relatively long distance. This can be combined with the large cross section of the second line 14 a very good heat exchange between the medium in the second conduit 14 and the UREA in the first conduit 12 done.
• the line arrangement 10 shown in FIG. 4 basically corresponds to the embodiment shown in FIGS. 1 and 2.
• a fabric 18 is provided which is interwoven with and supports the first conduit 12.
• the fabric 18 is, for example, a glass fiber fabric which completely encloses the second line in the circumferential direction U.
• the first line 12 forms a kind of thread of the fabric 18, so is woven over the entire voltage applied to the second line 14 length with the fabric 18, so that a displacement of the first line 12 relative to the second line 14 is reliably prevented.
• a protective jacket 20 is provided which completely encloses the line arrangement 10. As a result, the first line 12 and the second line 14 are protected from mechanical loads.
• the protective jacket 20 is formed in the embodiment shown here by a corrugated hose. The first line 12 and the second line 14 have within this corrugated hose game, so they can move relative to this, causing the
• Line assembly 10 is relatively flexible and easier deformed, in particular bent, can be.
• the protective jacket 20 may alternatively be formed as a shrink tube, which rests directly on the fabric 18 and this and the first line 12 presses against the second line 14.
• the protective sheath 20 may be molded directly onto the first conduit 12 and the second conduit 14 or both conduits 12, 14 into the
• Be protective shell 20 poured.
• the invention is not limited to one of the above-described embodiments, but can be modified in many ways.
• a heating element may be arranged in the first conduit 12, which may additionally heat the UREA, for example during a starting phase of the
• first lines 12 may be provided for UREA, which

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Combustion & Propulsion (AREA)
• Textile Engineering (AREA)
• Exhaust Gas After Treatment (AREA)
• Pipe Accessories (AREA)
• Rigid Pipes And Flexible Pipes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=61800516

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Family Cites Families (19)

• 2017
  • 2017-04-21 DE DE102017108532.7A patent/DE102017108532A1/de not_active Withdrawn
• 2018
  • 2018-03-22 US US16/606,888 patent/US20200056528A1/en not_active Abandoned
  • 2018-03-22 JP JP2019557387A patent/JP6903274B2/ja active Active
  • 2018-03-22 WO PCT/EP2018/057362 patent/WO2018192736A1/de active Application Filing
  • 2018-03-22 CN CN201880025080.2A patent/CN110520663A/zh active Pending
  • 2018-03-22 EP EP18713629.6A patent/EP3612759A1/de not_active Withdrawn
  • 2018-03-22 KR KR1020197034285A patent/KR102412177B1/ko active IP Right Grant

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