EP3152422A1 - Vorrichtung zur bereitstellung eines flüssigen additivs - Google Patents

Vorrichtung zur bereitstellung eines flüssigen additivs

Info

Publication number
EP3152422A1
EP3152422A1 EP15729110.5A EP15729110A EP3152422A1 EP 3152422 A1 EP3152422 A1 EP 3152422A1 EP 15729110 A EP15729110 A EP 15729110A EP 3152422 A1 EP3152422 A1 EP 3152422A1
Authority
EP
European Patent Office
Prior art keywords
liquid additive
ptc heating
heating element
conducting structure
housing
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.)
Withdrawn
Application number
EP15729110.5A
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter Bauer
Jan Hodgson
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive 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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP3152422A1 publication Critical patent/EP3152422A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/05—Systems for adding substances into exhaust
    • 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
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • F01N2610/105—Control thereof
    • 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
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • 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
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1811—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a device for providing a liquid additive.
  • Devices for providing a liquid additive are used, for example, in the motor vehicle sector to supply a liquid additive to an exhaust gas treatment device for cleaning the exhaust gases of an internal combustion engine of the motor vehicle.
  • Exhaust treatment devices that use a liquid additive to purify exhaust gases are widely used.
  • An exhaust gas purification process which is particularly frequently carried out in such exhaust gas treatment devices is the selective catalytic reduction (SCR) process.
  • SCR selective catalytic reduction
  • nitrogen oxide compounds in the exhaust gas are reduced with the aid of a reducing agent.
  • ammonia is used as the reducing agent.
  • the exhaust gas treatment device typically has an SCR catalyst, at which the nitrogen oxide compounds in the exhaust gas are reduced by means of the ammonia.
  • Ammonia is usually not stored directly in motor vehicles, but stored in the form of a reducing agent precursor solution.
  • This reductant precursor solution is a liquid additive.
  • a particularly frequently used reducing agent precursor solution is urea-water solution.
  • a 32.5 percent urea-water solution is available under the trade name AdBlue®.
  • the invention relates to a device for providing a liquid additive which has at least one PTC heating element which is adapted to melt frozen fluid additive in the device, wherein the at least one PTC heating element of the device is accommodated on both sides by a two-part heat conduction structure a voltage source is connected to the two-part heat conduction structure so that electric current can be conducted from the one heat conduction structure on one side of the PTC heating element through the PTC heating element to the heat conduction structure on the other side of the PTC heating element.
  • the device is preferably used in a tank as a mounting unit.
  • the device preferably has a housing and is arranged on the tank bottom of the tank.
  • the device has a suction point at which liquid additive (in particular urea-water solution) can be removed from the tank.
  • the device preferably has a line connection to which a metering line for providing the liquid additive can be connected.
  • a channel runs from the suction point to the line connection through the device.
  • a pump is arranged, with which the liquid additive can be promoted.
  • the device has several PTC heating elements.
  • the PTC heating elements are connected with a heat-conducting structure to the housing of the tank. In the tank is located around the device around a start volume of liquid additive.
  • the PTC heating elements are configured to heat liquid additive in the starting volume through the housing of the device.
  • the heat conduction structure is preferably applied over a large area to the housing so that the liquid in the tank can be effectively heated by means of the at least one PTC heating element.
  • the PTC heating elements (and usually also the pump of the device) are supplied from a voltage source of the device via electrical conductors with electrical current and an electrical voltage.
  • a filter is optionally arranged, which limits the starting volume between the filter and the housing and the suction point obscured, so that the liquid additive is filtered during removal from the tank with the filter.
  • Outside the housing and outside of the filter is optionally arranged a further coarse filter, which can prevent damage to the filter.
  • the liquid additive inside the tank (outside the coarse filter) has a temperature. This temperature is an operating parameter of the device that can be taken into account in the implementation of the method.
  • connection of the at least one PTC heating element of the device to a heat-conducting structure of the device.
  • the at least one PTC heating element of the device is accommodated on both sides by a two-part heat conduction structure, so that the heat from the PTC heating element is transmitted as effectively as possible to the housing or to the liquid additive.
  • a voltage source is connected via electrical conductors to the two-part heat conduction structure so that the electrical current can be conducted from the one heat conduction structure on one side of the PTC heating element through the PTC heating element to the heat conduction structure on the other side of the PTC heating element.
  • the (two-part) heat conduction structure thus forms, at least in sections, electrical conductors for contacting the at least one PTC heating element.
  • spacer elements between the two parts of the two-part heat conduction structure are further arranged so that on the one hand, the individual parts of the two-part heat conduction, or the two bossleit Jardinen are electrically insulated from each other and on the other hand, a thermally conductive bridge between the two parts of the two-part heat conduction structure or at - exist the varnishleit Modellen.
  • the spacer elements thus ensure that the heat from the heat-conducting structure, which is arranged on the side facing away from the housing side of the PTC heating element, can be dissipated towards the housing.
  • the heat conduction structure is preferably made of metal and most preferably of aluminum, because aluminum has a high thermal conductivity with low weight.
  • the device is advantageous if the spacer elements form a thermally conductive bridge between the two parts of the two-part heat conduction structure.
  • a two-sided heat dissipation of the at least one PTC heating element to both parts of the two-part heat conduction structure is possible, wherein a heat exchange between the two parts of the heat conduction structure can occur.
  • This heat exchange allows a heat balance when the heat flow from the two parts of the heat conduction structure is different.
  • the device has a housing which is inserted in a tank for the liquid additive, wherein the housing is free of liquid additive and in the housing is the at least one PTC heating element and the two-part heat conduction structure.
  • the housing is insulated from the tank liquid-tight.
  • the device when the heat conduction structure is applied over a large area of the housing.
  • a (first) part of the heat conduction structure is preferably flat and abuts against an inner surface of the wall of the housing of the device.
  • the housing of the device is preferably cylindrically shaped. The inner surface thus preferably forms an inner peripheral surface.
  • a (second) part of the heat-conducting structure is preferably also flat and abuts against an upper wall of the housing of the device.
  • the second part of the heat-conducting structure preferably has arm-like sections, which are formed at least in sections parallel to the first part of the heat-conducting structure.
  • PTC heating elements are arranged between the arm-like sections of the second part of the heat-conducting structure and the first part of the heat-conducting structure.
  • thermally conductive connections are arranged between the first part of the heat structure and the second part of the heat-conducting structure.
  • thermally conductive compounds may be, for example, spacer elements which are arranged next to the PTC heating elements.
  • the device is also advantageous if a pump is arranged in the housing, which is connected to a suction point and a line connection via a channel, wherein liquid additive can be removed from the tank at the suction point and a feed line at the line connection can be connected to provide the liquid additive.
  • the housing despite the fact that a pump is disposed therein, is referred to as a "dry" housing, because in the housing itself, the liquid additive is not circulated freely and the housing is thus dry.
  • the liquid additive is within the housing in the channel and
  • a motor vehicle is proposed which comprises an internal combustion engine, an exhaust gas treatment device for cleaning the exhaust gases of the combustion engine and a fiction, contemporary device for providing a liquid additive for the exhaust treatment device has.
  • an SCR catalyst is preferably arranged, with which the method of selective catalytic reduction can be carried out.
  • the device described is preferably connected to a metering line.
  • This feed line leads to an adding device, with which the liquid additive can be supplied to the exhaust gas treatment device.
  • the adding device preferably has a nozzle which finely atomises the liquid additive in the exhaust gas treatment device (optionally with the aid of a pressure medium such as air) and / or an injector with which the liquid additive can be metered.
  • the injector may be, for example, an electrically opening and closing valve.
  • Fig. 1 a motor vehicle with a device
  • FIG. 2 shows a tank with a device
  • FIG. 3 a connection of a PTC heating element to a heat conduction structure
  • FIG. 4 shows another view of the connection according to FIG. 3, FIG.
  • FIG. 6 shows a three-dimensional representation of a two-part heat conduction structure
  • FIG. 7 is a detailed view of the tank of FIG. 2.
  • FIG. 1 shows a motor vehicle 16, comprising an internal combustion engine 17 and an exhaust gas treatment device 18 for cleaning the exhaust gases 19 of the combustion engine 17.
  • an SCR catalyst is provided as the exhaust gas purification component 21.
  • an adding device 20 is arranged, with which the liquid additive 3 of the exhaust gas purification component 21 can be supplied.
  • the adding device 20 is supplied by a device 2 via a metering line 22 with liquid additive 3 from a tank 23.
  • the liquid additive 3 has a temperature 34, which is here marked by way of example in the tank 23.
  • the device 2 is arranged in an environment (eg in the vicinity of the fuel tank of the motor vehicle), the environment having an ambient temperature 35, which is here marked outside the tank 23 by way of example.
  • Fig. 2 shows a tank 23 in a side view, in which a device 2 is used as a mounting unit.
  • the device 2 has a housing 26 and is arranged on the tank bottom 27 of the tank 23.
  • the device 2 has a suction point 29, at which liquid additive 3 (in particular urea-water solution) can be removed from the tank 23.
  • the device 2 has a line connection 28, to which a metering line 22 for providing the liquid additive 3 can be connected. From the suction point 29 to the line connection 28 extends through the device 2, a channel 36.
  • a pump 25 is arranged, with which the liquid additive 3 can be promoted.
  • the device 2 has a plurality of PTC heating elements 1.
  • the PTC heating elements 1 are connected to the housing 26 of the tank 23 with a heat-conducting structure 24.
  • the tank 23 is located around the device 2 around a start volume of liquid additive 3.
  • the PTC heating elements 1 are adapted to heat liquid additive 3 in the starting volume through the housing 26 of the device 2 therethrough.
  • the PTC heating elements 1 (and the pump 25) are supplied by a voltage source 5 of the device 2 via electrical conductors 4 with electric current 10 and an electrical voltage 31.
  • a filter 30 is optionally arranged, which limits the starting volume between the filter 30 and housing 26 and conceals the suction point 29, so that the liquid additive 3 in the removal from the tank
  • the liquid additive 3 within the tank 23 (outside of the coarse filter 32) has a temperature 34.
  • This temperature 34 is an operating parameter 14 of the device 2, which can be taken into account in the implementation of the method.
  • 3 shows an advantageous connection of a PTC heating element 1 to a heat-conducting structure 24. Shown is a wall portion of the housing 26 of the device 2 in a view from above (see side view in Fig. 2).
  • a PTC heating element 1 is accommodated on both sides by a two-part heat-conducting structure 24, so that the heat from the PTC heating element 1 is transmitted as effectively as possible to the housing 26 or to the liquid additive 3.
  • a voltage source 5 is via electrical conductors 4 with the two-part heat conduction structure
  • spacer elements 13 are arranged between the two-part heat-conducting structure 24, so that on the one hand the individual heat-conducting structures 24 are electrically insulated from one another and, on the other hand, a thermally conductive bridge exists between the heat-conducting structures 24. The spacer elements 13 thus ensure that the heat of the heat conduction structure 24, which is arranged on the side facing away from the housing 26 side of the PTC heating element 1, can be discharged towards the housing 26.
  • FIG. 4 shows a side view of the connection according to FIG. 4 along the section line V indicated in FIG. 4.
  • the heat-conducting structure 24 is arranged in the vicinity of the housing 26 within the device 2.
  • the housing 26 is connected to the tank bottom 27.
  • Fig. 5 shows a view from below into the housing 26 of a device 2.
  • a peripheral wall 6 of the housing 26 and an upper wall 7 of the housing 26 can be seen accordingly.
  • a first part 8 of the heat-conducting structure 24 is applied on the peripheral wall 6 .
  • On the upper wall 6 is a second part 9 of the heat conduction structure.
  • the second part 9 of the heat-conducting structure 24 has arms 10 which extend at least in sections parallel to the first part 8 of the heat-conducting structure 24.
  • PTC heating elements 1 are arranged between the arms 10 of the second part 9 and the first part 8 PTC heating elements 1 are arranged.
  • spacer elements 13 are arranged between the arms 10 of the second part 9 and the first part 8.
  • Also indicated in FIG. 5 are a pump 25 of the device and a channel 36, via which the pump 25 sucks in the liquid additive at a suction point 29.
  • FIG. 6 shows a three-dimensional view of the two-part heat-conducting structure 24 with a first part 8 and a second part 9.
  • FIG. 7 shows a detailed view of the tank 23 from FIG. 2 with a device 1. Going beyond the disclosure of FIG. 4, it can be seen here that the heat-conducting structure 24 is designed in two parts with a first part 8 and a second part 9.
  • the invention makes possible a particularly advantageous operation of a device for providing a liquid additive.
  • a functional test of the heat-conducting connection of PTC heating elements 1 to heat conducting structures 24 and / or housing 26 is possible.
  • it can be determined whether, if necessary, rework or repairs (possibly also a replacement of the device) are necessary.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)
EP15729110.5A 2014-06-04 2015-06-02 Vorrichtung zur bereitstellung eines flüssigen additivs Withdrawn EP3152422A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014107863.2A DE102014107863A1 (de) 2014-06-04 2014-06-04 Verfahren zur Funktionsprüfung mindestens eines PTC-Heizelementes
PCT/EP2015/062290 WO2015185568A1 (de) 2014-06-04 2015-06-02 Vorrichtung zur bereitstellung eines flüssigen additivs

Publications (1)

Publication Number Publication Date
EP3152422A1 true EP3152422A1 (de) 2017-04-12

Family

ID=53398060

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15729371.3A Active EP3152423B1 (de) 2014-06-04 2015-06-02 Verfahren zur funktionsprüfung mindestens eines ptc-heizelementes
EP15729110.5A Withdrawn EP3152422A1 (de) 2014-06-04 2015-06-02 Vorrichtung zur bereitstellung eines flüssigen additivs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15729371.3A Active EP3152423B1 (de) 2014-06-04 2015-06-02 Verfahren zur funktionsprüfung mindestens eines ptc-heizelementes

Country Status (7)

Country Link
US (2) US20170107881A1 (ja)
EP (2) EP3152423B1 (ja)
JP (2) JP6239158B2 (ja)
KR (2) KR101902673B1 (ja)
CN (2) CN106460615B (ja)
DE (1) DE102014107863A1 (ja)
WO (2) WO2015185569A1 (ja)

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KR101770376B1 (ko) * 2016-09-21 2017-09-05 주식회사 코아비스 요소수 펌프 모듈
DE102016121684A1 (de) * 2016-11-11 2018-05-17 Dbk David + Baader Gmbh Heizmodul für einen Schmelztank, und Schmelztank mit dem Heizmodul
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DE102018216929A1 (de) * 2018-10-02 2020-04-02 Continental Automotive Gmbh Heizvorrichtung zum Einbau in einen Fahrzeugtank für Reduktionsmittel und Fahrzeugtank
IT201900001745A1 (it) * 2019-02-06 2020-08-06 Eltek Spa Semilavorato di dispositivo riscaldatore elettrico, dispositivo riscaldatore elettrico, e metodi di realizzazione
CN111894703A (zh) * 2019-05-06 2020-11-06 罗伯特·博世有限公司 用于发动机的废气处理液解冻的系统以及监测液位方法
CN114993384B (zh) * 2022-07-13 2022-10-28 航电中和山东医疗技术有限公司 一种加热管检测装置

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US20170191392A1 (en) 2017-07-06
WO2015185569A1 (de) 2015-12-10
JP6239158B2 (ja) 2017-11-29
EP3152423A1 (de) 2017-04-12
JP2017516948A (ja) 2017-06-22
KR20160145736A (ko) 2016-12-20
DE102014107863A1 (de) 2015-12-17
CN106460615A (zh) 2017-02-22
CN106460614A (zh) 2017-02-22
KR20160140946A (ko) 2016-12-07
EP3152423B1 (de) 2018-12-05
WO2015185568A1 (de) 2015-12-10
CN106460615B (zh) 2019-06-04
US10590821B2 (en) 2020-03-17
JP2017523337A (ja) 2017-08-17
KR101902673B1 (ko) 2018-09-28
US20170107881A1 (en) 2017-04-20

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