EP1334319A1 - Heat exchanger for an auxiliary automotive heater - Google Patents

Heat exchanger for an auxiliary automotive heater

Info

Publication number
EP1334319A1
EP1334319A1 EP01996711A EP01996711A EP1334319A1 EP 1334319 A1 EP1334319 A1 EP 1334319A1 EP 01996711 A EP01996711 A EP 01996711A EP 01996711 A EP01996711 A EP 01996711A EP 1334319 A1 EP1334319 A1 EP 1334319A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
temperature sensor
wall
recess
transfer medium
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Withdrawn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
EP01996711A
Other languages
German (de)
French (fr)
Inventor
Stephan Habijanec
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.)
Webasto Thermosysteme GmbH
Webasto Thermosysteme International GmbH
Original Assignee
Webasto Thermosysteme GmbH
Webasto Thermosysteme International 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 Webasto Thermosysteme GmbH, Webasto Thermosysteme International GmbH filed Critical Webasto Thermosysteme GmbH
Publication of EP1334319A1 publication Critical patent/EP1334319A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body

Definitions

  • the present invention relates to a heat exchanger for a vehicle auxiliary heater according to the preamble of patent claim 1.
  • the invention takes the path of not arranging the temperature sensor directly immersed in the heat transfer medium, but instead of arranging the temperature sensor in a recess in the outer wall of the heat exchanger or the outlet connector, which protrudes into the heat transfer medium and is washed by it.
  • This measure has the The advantage that the screw thread and the sealing seat, which have to be machined into the heat exchanger in the prior art, can be dispensed with because the temperature sensor does not penetrate the outer jacket of the heat exchanger, but is accommodated in a wall recess which is integral with the wall trained receiving member for the temperature sensor forms.
  • the arrangement according to the invention of the temperature sensor in a wall recess projecting into the heat transfer medium also has the advantage that sealing measures, as in the prior art, can be omitted.
  • Such a wall recess is produced in one piece with the casting of the heat exchanger, so that the temperature sensor only has to be inserted into the wall recess and fixed there. This fixation takes place, for example, directly at the manufacturer of the temperature sensor, using a sealing or potting compound.
  • the temperature sensor advantageously sits with its sensor end at the bottom or end of a blind hole through which the wall recess is formed.
  • the wall recess is arranged in the transition area of the outlet connector to the outer wall of the heat exchanger, in which case the wall of the outlet connector or the heat exchanger outer jacket forms part of the wall recess.
  • the wall recess is preferably surrounded on all sides by the heat transfer medium, so that the Heat from this medium is quickly transferred to the temperature sensor, which is inserted into the wall recess.
  • FIG. 1 a partial longitudinal section of a half of a heat exchanger 10 with a temperature sensor arranged in the region of a wall of the outlet connection
  • FIG. 2 a variant of FIG. 1 with a temperature sensor arranged in the region of a wall of the outer part of the heat exchanger.
  • the heat exchanger 10 consists of a cup-shaped heat exchanger outer part 11 and a cup-shaped heat exchanger inner part 12 which is inserted into the heat exchanger outer part 11 in such a way that an annular space 13 remains between the two parts 11, 12.
  • This annular space 13 serves to hold a liquid heat transfer medium, which is fed into the annular space 13 via an inlet connection (not shown) and is discharged from the latter via an outlet connection 14.
  • the two cup-shaped parts 11, 12 are fixed to one another by a clamping ring 15 with a V-shaped cross section.
  • the clamping ring 15 also encloses the flange end of a burner / blower unit, which is generally designated in the figure by the reference number 16 and comprises a burner with a combustion chamber 17 which is inserted coaxially into the heat exchanger 10 and is fixed relative to the latter.
  • the outlet connector 14 is formed in one piece as a cast part together with the heat exchanger outer part 11 of the heat exchanger 10.
  • a wall recess 18 is preferably formed in the transition region of the outlet connector 14 to the heat exchanger outer part 11 of the heat exchanger 10, which is preferably in the form of Blind hole is formed in an inwardly projecting wall part of the outlet connector 14 or that part of the heat exchanger outer part 11 of the heat exchanger 10 which is in the region of the outlet connector 14.
  • the wall recess 18 is fixed by a wall section 19 of the heat exchanger outer part 11, which projects approximately up to half into the free cross section of the outlet connector 14.
  • the wall recess 18 is delimited by a wall section 20, which forms part of the outlet connection 14, runs parallel to the wall section 19 of the heat exchanger outer part 11 and is united therewith by a bottom 21 running transversely to the two sections 19, 20.
  • This bottom 21 defines the blind hole end of the blind hole which is formed in the interior of the wall recess 18.
  • the blind hole provided in the wall recess 18 serves to receive a temperature sensor, which is generally designated by the reference number 22 and a z. B. includes spherical sensor member 23 which is adjacent to the blind hole end or the bottom 21 of the wall recess 18 when the temperature sensor is installed.
  • This position of the sensor element 23 and the position of the wall recess 18 immersed in the heat transfer medium ensures that the temperature sensor 22 is in contact with the heat transfer medium indirectly via the wall sections 19, 20 and the bottom 21 of the wall recess 18 and thus quickly detect its temperature capable, especially when the wall sections 19 and 20 concerned and the bottom 21 are formed relatively thin-walled.
  • the temperature sensor 22 is fixed in the blind bore of the wall recess 18 by means of a casting compound 26, which also represents protection against contamination for the sensor and also ensures a sealed enclosure of the temperature sensor 22 and the connection area 24, 25 against splash water.
  • a wall recess 26 for a temperature sensor 22 is arranged in a wall section 29 of the heat exchanger outer part 11 of the heat exchanger 10, which is essentially cylindrical, but alternatively is also cuboid or cube-shaped.
  • the recess 28 is spaced from the mouth of the outlet connector 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Control Of Combustion (AREA)

Abstract

The invention relates to a heat exchanger for a heater, especially an auxiliary automotive heater, whose combustion chamber (17) is delimited by the heat exchanger (10). The heat exchanger according to the invention comprises an annular compartment (13), delimited by an interior part (12) of the heat exchanger and an exterior part (11) of the heat exchanger, to which a liquid heat transfer medium is supplied via an inlet neck and from which liquid is released via an outlet neck (14). A temperature sensor (22) is disposed in the area of connection of the outlet neck (14) with the annular compartment (13) and detects the temperature of the heat transfer medium. The aim of the invention is to reduce production and assembly costs and to avoid the necessity of special sealing measures. To this end, the temperature sensor (22) is disposed in a wall recess (18) of the outlet neck (14) and/or of the exterior part (11) of the heat exchanger, said recess projecting into the outlet neck (14) or into the annular compartment (13).

Description

Wärmetauscher für ein Fahrzeugzusatzheizgerät Heat exchanger for a vehicle auxiliary heater
Die vorliegende Erfindung betrifft einen Wärmetauscher für ein Fahrzeugzusatz- heizgerät gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a heat exchanger for a vehicle auxiliary heater according to the preamble of patent claim 1.
Bei einem Wärmetauscher der eingangs genannten Art, wie er beispielsweise aus der DE 38 39 244 A1 (Fig. 3) bekannt ist, war es bislang üblich, den Temperatursensor in ein Gewinde des Wärmetauschers so einzuschrauben, dass er mit sei- ner Fühlspitze in das Wärmeträgermedium ragt. Dieser Temperatursensor ist mittels eines O-Rings gegenüber dem Wärmetauscher gedichtet und er bildet ein fertig konfektioniertes Bauteil mit eigenem Gehäuse sowie darin eingebrachtem elektrischen Messfühler. Nachteilig ist, dass sowohl das Schraubgewinde wie der Dichtsitz für den O-Ring des Temperatursensors spanend in den Wärmetauscher eingebracht werden müssen. Von Nachteil ist ferner, dass der Temperatursensor fertig konfektioniert und mit eigenem Gehäuse verbaut werden muss, damit er an dem Wärmeträger montiert werden kann.In the case of a heat exchanger of the type mentioned at the outset, as is known, for example, from DE 38 39 244 A1 (FIG. 3), it has hitherto been customary to screw the temperature sensor into a thread of the heat exchanger in such a way that it touches the sensor tip with it Heat transfer medium protrudes. This temperature sensor is sealed against the heat exchanger by means of an O-ring and it forms a fully assembled component with its own housing and an electrical measuring sensor incorporated therein. It is disadvantageous that both the screw thread and the sealing seat for the O-ring of the temperature sensor have to be machined into the heat exchanger. Another disadvantage is that the temperature sensor must be assembled and installed with its own housing so that it can be mounted on the heat transfer medium.
Eine Aufgabe der vorliegenden Erfindung besteht darin, einen Wärmetauscher der eingangs genannten Art so zu gestalten, dass der Wärmeträgermedium- Temperatursensor in einfacher Weise ohne gesonderte Dichtungsmaßnahmen montiert werden kann.It is an object of the present invention to design a heat exchanger of the type mentioned at the outset in such a way that the heat transfer medium temperature sensor can be installed in a simple manner without separate sealing measures.
Gelöst wird diese Aufgabe durch die Merkmale des Anspruchs 1. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by the features of claim 1. Advantageous developments of the invention are specified in the subclaims.
Im Gegensatz zum Stand der Technik beschreitet die Erfindung den Weg, den Temperatursensor nicht unmittelbar in das Wärmeträgermedium eintauchend anzuordnen, sondern den Temperatursensor in einer Eintiefung der Außenwandung des Wärmetauschers bzw. des Auslassstutzens anzuordnen, die in das Wärmeträgermedium vorsteht und von diesem umspült ist. Diese Maßnahme hat den Vorteil, dass das Schraubgewinde und der Dichtsitz, die spanend in den Wärmeübertrager beim Stand der Technik eingebracht werden müssen, entfallen können, weil der Temperatursensor den Außenmantel des Wärmetauschers nicht durchsetzt, sondern in einer Wandungseintiefung aufgenommen ist, die das ein- stückig mit der Wandung ausgebildete Aufnahmeorgan für den Temperatursensor bildet. Die erfindungsgemäße Anordnung des Temperatursensors in einer in das Wärmeträgermedium ragenden Wandungseintiefung hat ferner den Vorteil, dass Dichtungsmaßnahmen, wie beim Stand der Technik, entfallen können.In contrast to the prior art, the invention takes the path of not arranging the temperature sensor directly immersed in the heat transfer medium, but instead of arranging the temperature sensor in a recess in the outer wall of the heat exchanger or the outlet connector, which protrudes into the heat transfer medium and is washed by it. This measure has the The advantage that the screw thread and the sealing seat, which have to be machined into the heat exchanger in the prior art, can be dispensed with because the temperature sensor does not penetrate the outer jacket of the heat exchanger, but is accommodated in a wall recess which is integral with the wall trained receiving member for the temperature sensor forms. The arrangement according to the invention of the temperature sensor in a wall recess projecting into the heat transfer medium also has the advantage that sealing measures, as in the prior art, can be omitted.
Eine derartige Wandungseintiefung wird einstückig beim Gießen des Wärmetauschers gemeinsam mit diesem hergestellt, so dass der Temperatursensor lediglich noch in der Wandungseintiefung eingesteckt und dort fixiert werden muss. Diese Fixierung erfolgt beispielsweise direkt beim Hersteller des Temperatursensors, mittels Dicht- bzw. Vergussmasse.Such a wall recess is produced in one piece with the casting of the heat exchanger, so that the temperature sensor only has to be inserted into the wall recess and fixed there. This fixation takes place, for example, directly at the manufacturer of the temperature sensor, using a sealing or potting compound.
Beim Gießen können Maßnahmen getroffen sein, um die Wandungseintiefung so dünnwandig zu gestalten, dass ein möglichst optimaler Wärmeübergang vom Wärmeträgermedium über die dünne Wandung der Eintiefung zum Temperatursensor erfolgt.When casting, measures can be taken to make the wall recess so thin-walled that the best possible heat transfer from the heat transfer medium takes place via the thin wall of the recess to the temperature sensor.
Vorteilhafterweise sitzt der Temperatursensor mit seinem Fühlerende am Boden bzw. Ende eines Sacklochs, durch das die Wandungseintiefung gebildet wird.The temperature sensor advantageously sits with its sensor end at the bottom or end of a blind hole through which the wall recess is formed.
Die Wandungseintiefung ist im Übergangsbereich des Auslassstutzens zur Au- ßenwandung des Wärmetauschers angeordnet, in welchem Fall die Wandung des Auslassstutzens bzw. des Wärmetauscheraußenmantels einen Teil der Wandungseintiefung bildet.The wall recess is arranged in the transition area of the outlet connector to the outer wall of the heat exchanger, in which case the wall of the outlet connector or the heat exchanger outer jacket forms part of the wall recess.
Abgesehen vom Einführungsende für den Temperatursensor ist die Wandungs- eintiefung bevorzugt allseitig vom Wärmeträgermedium umflossen, so dass die Wärme dieses Mediums rasch auf den Temperatursensor übertragen wird, der in die Wandungseintiefung eingesetzt ist.Apart from the insertion end for the temperature sensor, the wall recess is preferably surrounded on all sides by the heat transfer medium, so that the Heat from this medium is quickly transferred to the temperature sensor, which is inserted into the wall recess.
Nachfolgend wird die Erfindung beispielhaft anhand der Zeichnung näher erläu- teil; es zeigtThe invention is explained in more detail below by way of example with reference to the drawing; it shows
Fig. 1 : im Teil-Längsschnitt eine Hälfte eines Wärmetauschers 10 mit einem im Bereich einer Wand des Auslaßstutzens angeordneten Temperatursensor und Fig. 2: eine Variante zur Fig. 1 mit einem im Bereich einer Wand des Wärmetauscher-Außenteils angeordneten Temperatursensor.1: a partial longitudinal section of a half of a heat exchanger 10 with a temperature sensor arranged in the region of a wall of the outlet connection, and FIG. 2: a variant of FIG. 1 with a temperature sensor arranged in the region of a wall of the outer part of the heat exchanger.
Der Wärmetauscher 10 besteht aus einem becherförmigen Wärmetauscher- Außenteil 11 und einem becherförmigen Wärmetauscher-Innenteill 12, das in das Wärmetauscher-Außenteil 11 so eingesetzt ist, dass zwischen den beiden Teilen 11 , 12 ein Ringraum 13 verbleibt. Dieser Ringraum 13 dient zur Aufnahme eines flüssigen Warmetragermediums, das über einen nicht gezeigten Einlassstutzen in den Ringraum 13 eingespeist und über einen Auslassstutzen 14 aus diesem ausgetragen wird.The heat exchanger 10 consists of a cup-shaped heat exchanger outer part 11 and a cup-shaped heat exchanger inner part 12 which is inserted into the heat exchanger outer part 11 in such a way that an annular space 13 remains between the two parts 11, 12. This annular space 13 serves to hold a liquid heat transfer medium, which is fed into the annular space 13 via an inlet connection (not shown) and is discharged from the latter via an outlet connection 14.
Im Bereich ihres Randes, der flanschartig gebildet ist, sind die beiden becherförmigen Teile 11 , 12 durch einen im Querschnitt V-förmigen Spannring 15 aneinander fixiert. Der Spannring 15 umschließt außerdem das Flanschende eines Brenner/Gebläse-Aggregats, das in der Figur allgemein mit der Bezugsziffer 16 bezeichnet ist und einen Brenner mit einer Brennkammer 17 umfasst, die koaxial in den Wärmetauscher 10 eingesetzt und gegenüber diesem fixiert ist.In the area of its edge, which is flange-like, the two cup-shaped parts 11, 12 are fixed to one another by a clamping ring 15 with a V-shaped cross section. The clamping ring 15 also encloses the flange end of a burner / blower unit, which is generally designated in the figure by the reference number 16 and comprises a burner with a combustion chamber 17 which is inserted coaxially into the heat exchanger 10 and is fixed relative to the latter.
Der Auslassstutzen 14 ist einstückig als Gussteil gemeinsam mit dem Wärmetauscher-Außenteil 11 des Wärmetauschers 10 ausgebildet. Bevorzugt im Über- gangsbereich des Auslassstutzens 14 zum Wärmetauscher-Außenteil 11 des Wärmetauschers 10 ist eine Wandungseintiefung 18 gebildet, die bevorzugt als Sackloch in einem nach innen vorspringenden Wandteil des Auslassstutzens 14 bzw. des im Bereich des Auslassstutzens 14 liegenden Teils des Wärmetauscher-Außenteils 11 des Wärmetauschers 10 ausgebildet ist. Gemäß einer besonders bevorzugten Ausführungsform ist die Wandungseintiefung 18 durch ei- nen Wandungsabschnitt 19 des Wärmetauscher-Außenteils 11 festgelegt, der etwa bis zur Hälfte in den freien Querschnitt des Auslassstutzens 14 hineinragt. Andererseits ist die Wandungseintiefung 18 durch einen Wandungsabschnitt 20 begrenzt, der einen Teil des Auslassstutzens 14 bildet, parallel zum Wandungsabschnitt 19 des Wärmetauscher-Außenteils 11 verläuft und mit diesem durch einen quer zu den beiden Abschnitten 19, 20 verlaufenden Boden 21 vereinigt ist. Dieser Boden 21 legt das Sacklochende des Sackloches fest, welches im Innern der Wandungseintiefung 18 gebildet ist.The outlet connector 14 is formed in one piece as a cast part together with the heat exchanger outer part 11 of the heat exchanger 10. A wall recess 18 is preferably formed in the transition region of the outlet connector 14 to the heat exchanger outer part 11 of the heat exchanger 10, which is preferably in the form of Blind hole is formed in an inwardly projecting wall part of the outlet connector 14 or that part of the heat exchanger outer part 11 of the heat exchanger 10 which is in the region of the outlet connector 14. According to a particularly preferred embodiment, the wall recess 18 is fixed by a wall section 19 of the heat exchanger outer part 11, which projects approximately up to half into the free cross section of the outlet connector 14. On the other hand, the wall recess 18 is delimited by a wall section 20, which forms part of the outlet connection 14, runs parallel to the wall section 19 of the heat exchanger outer part 11 and is united therewith by a bottom 21 running transversely to the two sections 19, 20. This bottom 21 defines the blind hole end of the blind hole which is formed in the interior of the wall recess 18.
Das in der Wandungseintiefung 18 bereitgestellte Sackloch dient zur Aufnahme eines Temperatursensors, der allgemein mit der Bezugsziffer 22 bezeichnet ist und ein z. B. kugelförmiges Fühlerorgan 23 umfasst, das bei eingebautem Temperatursensor an das Sacklochende bzw. den Boden 21 der Wandungseintiefung 18 angrenzt. Durch diese Lage des Fühlerorgans 23 und die in das Wärmeträgermedium eintauchende Lage der Wandungseintiefung 18 wird erreicht, dass der Temperatursensor 22 mittelbar über die Wandungsabschnitte 19, 20 und den Boden 21 der Wandungseintiefung 18 im Kontakt mit dem Wärmeträgermedium steht und dessen Temperatur damit schnell zu erfassen vermag, zumal dann, wenn die betroffenen Wandungsabschnitte 19 bzw. 20 und der Boden 21 relativ dünnwandig gebildet sind.The blind hole provided in the wall recess 18 serves to receive a temperature sensor, which is generally designated by the reference number 22 and a z. B. includes spherical sensor member 23 which is adjacent to the blind hole end or the bottom 21 of the wall recess 18 when the temperature sensor is installed. This position of the sensor element 23 and the position of the wall recess 18 immersed in the heat transfer medium ensures that the temperature sensor 22 is in contact with the heat transfer medium indirectly via the wall sections 19, 20 and the bottom 21 of the wall recess 18 and thus quickly detect its temperature capable, especially when the wall sections 19 and 20 concerned and the bottom 21 are formed relatively thin-walled.
Zur Fixierung ist der Temperatursensor 22 in der Sackbohrung der Wandeintie- fung 18 mittels einer Vergussmasse 26 fixiert, die auch einen Verschmutzungsschutz für den Sensor darstellt und außerdem einen dichtenden Einschluss des Temperatursensors 22 und des Anschlussbereichs 24, 25 gegenüber Spritzwas- ser gewährleistet. In der Variante gemäß Fig. 2 ist eine Wandeintiefung 26 für einen Temperatursensor 22 in einem Wandungsabschnitt 29 des Wärmetauscher-Außenteils 11 des Wärmetauschers 10 angeordnet, der im wesentlichen zylindrisch, alternativ dazu jedoch auch quader- oder würfelförmig ausgebildet ist. Die Eintiefung 28 ist dabei im Gegensatz zur Fig. 1 von der Ausmündung des Auslaßstutzens 14 beabstandet. For fixation, the temperature sensor 22 is fixed in the blind bore of the wall recess 18 by means of a casting compound 26, which also represents protection against contamination for the sensor and also ensures a sealed enclosure of the temperature sensor 22 and the connection area 24, 25 against splash water. In the variant according to FIG. 2, a wall recess 26 for a temperature sensor 22 is arranged in a wall section 29 of the heat exchanger outer part 11 of the heat exchanger 10, which is essentially cylindrical, but alternatively is also cuboid or cube-shaped. In contrast to FIG. 1, the recess 28 is spaced from the mouth of the outlet connector 14.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
10 Wärmetauscher10 heat exchangers
11 Wärmetauscher-Außenteil11 Heat exchanger outer part
12 Wärmetauscher-Innenteil12 heat exchanger inner part
13 Zwischenraum13 space
14 Auslassstutzen14 outlet connection
15 Spannring15 tension ring
16 Brenner/Gebläseaggregat16 burner / blower unit
17 Brennkammer17 combustion chamber
18 Wandungseintiefung18 wall recess
19 Wandungsabschnitt19 wall section
20 Wandungsabschnitt20 wall section
21 Boden21 floor
22 Temperatursensor22 temperature sensor
23 Fühlerorgan23 sensor organ
24 Anschlussdraht24 connecting wire
25 Anschlussdraht25 connecting wire
26 Vergussmasse26 potting compound
28 Wandungseintiefung28 wall recess
29 Wandungsabschnitt 29 wall section

Claims

Patentansprüche claims
1. Wärmetauscher für ein Fahrzeugzusatzheizgerät, dessen Brennkammer (17) von einem Wärmetauscher (10) umgeben ist, mit einem durch ein1. Heat exchanger for a vehicle auxiliary heater, the combustion chamber (17) of which is surrounded by a heat exchanger (10), with a through
Wärmetauscher-Außenteil (11) begrenzten Ringraum (13), in welchen ein flüssiges Wärmeträgermedium eingetragen und über einen Auslassstutzen (14) ausgetragen wird, und mit einem Temperatursensor (22) zur Erfassung der Temperatur des Warmetragermediums, der in wärmeleitender Verbindung zum flüssigen Wärmeträgermedium angeordnet ist, dadurch gekennzeichnet, dass der Temperatursensor (22) in einer Wandungseintiefung (18) einer Wandung (19) des Auslassstutzens (14) oder einer Wandung (29) des Wärmetauscher-Außenteils (11) angeordnet ist, die in den Auslassstutzen (14) bzw. im Bereich der Ausmündung des Auslassstut- zens (14) in den Ringraum (13) ragt.Heat exchanger outer part (11) delimited annular space (13), in which a liquid heat transfer medium is introduced and discharged via an outlet connection (14), and with a temperature sensor (22) for detecting the temperature of the heat transfer medium, which is arranged in a heat-conducting connection to the liquid heat transfer medium characterized in that the temperature sensor (22) is arranged in a wall recess (18) of a wall (19) of the outlet connector (14) or a wall (29) of the heat exchanger outer part (11) which is in the outlet connector (14) or projects into the annular space (13) in the region of the outlet of the outlet connector (14).
2. Wärmetauscher nach Anspruch 1 , dadurch gekennzeichnet, dass die Wandungseintiefung (18) von einem Sackloch gebildet wird, an dessen Ende der Temperatursensor (22) mit einem Fühlerorgan (23) angrenzt.2. Heat exchanger according to claim 1, characterized in that the wall recess (18) is formed by a blind hole, at the end of which the temperature sensor (22) adjoins a sensor element (23).
3. Wärmetauschers nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Temperatursensor (22) mittels einer Vergussmasse (26) in der Wandungseintiefung (18) fixiert ist.3. Heat exchanger according to claim 1 or 2, characterized in that the temperature sensor (22) by means of a casting compound (26) is fixed in the wall recess (18).
4. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die in den Auslassstutzen (14) ragende Wandungseintiefung (18) unmittelbar an die Außenseite der Wandung (19) des Wärmetauscher-Außenteils (11) angrenzt, die dort die Eintiefung (18) begrenzt und in den freien Querschnitt des Auslassstutzens vorsteht. 4. Heat exchanger according to one of claims 1 to 3, characterized in that the wall recess (18) projecting into the outlet connection (14) directly adjoins the outside of the wall (19) of the heat exchanger outer part (11), which there the recess ( 18) limited and protrudes into the free cross section of the outlet nozzle.
EP01996711A 2000-11-15 2001-11-08 Heat exchanger for an auxiliary automotive heater Withdrawn EP1334319A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10056620 2000-11-15
DE10056620A DE10056620C1 (en) 2000-11-15 2000-11-15 Heat exchanger for automobile auxiliary heating device has temperature sensor for detecting temperature of heat transfer medium fitted in indent in heat exchanger wall
PCT/EP2001/012915 WO2002040928A1 (en) 2000-11-15 2001-11-08 Heat exchanger for an auxiliary automotive heater

Publications (1)

Publication Number Publication Date
EP1334319A1 true EP1334319A1 (en) 2003-08-13

Family

ID=7663405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01996711A Withdrawn EP1334319A1 (en) 2000-11-15 2001-11-08 Heat exchanger for an auxiliary automotive heater

Country Status (7)

Country Link
EP (1) EP1334319A1 (en)
JP (1) JP2004513832A (en)
KR (1) KR20020068066A (en)
CN (1) CN1561443A (en)
AU (1) AU2002216022A1 (en)
DE (1) DE10056620C1 (en)
WO (1) WO2002040928A1 (en)

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JP2004513832A (en) 2004-05-13
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AU2002216022A1 (en) 2002-05-27
WO2002040928A1 (en) 2002-05-23
CN1561443A (en) 2005-01-05

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