DE102008056810A1 - Cooling device for use as exhaust gas cooler to cool exhaust gas of internal combustion engine of motor vehicle, has inlet openings and outlet openings that are arranged at axial ends of screwing body according to number of screw threads - Google Patents
Cooling device for use as exhaust gas cooler to cool exhaust gas of internal combustion engine of motor vehicle, has inlet openings and outlet openings that are arranged at axial ends of screwing body according to number of screw threads Download PDFInfo
- Publication number
- DE102008056810A1 DE102008056810A1 DE102008056810A DE102008056810A DE102008056810A1 DE 102008056810 A1 DE102008056810 A1 DE 102008056810A1 DE 102008056810 A DE102008056810 A DE 102008056810A DE 102008056810 A DE102008056810 A DE 102008056810A DE 102008056810 A1 DE102008056810 A1 DE 102008056810A1
- Authority
- DE
- Germany
- Prior art keywords
- screw body
- cooling device
- exhaust gas
- internal combustion
- combustion engine
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/12—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/026—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/08—Tubular elements crimped or corrugated in longitudinal section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
Abstract
Description
Die Erfindung betrifft eine Kühlvorrichtung für eine Verbrennungskraftmaschine mit einem Innenrohr, welches vom zu kühlenden Medium durchströmbar ist, einem Außenrohr und einem zwischen dem Innenrohr und dem Außenrohr angeordneten Schraubenkörper, dessen Innendurchmesser im Wesentlichen dem Außendurchmesser des Innenrohrs entspricht und dessen Außendurchmesser im Wesentlichen dem Innendurchmesser des Außenrohres entspricht, wobei die Schraubengänge des Schraubenkörpers zwischen dem Innenrohr und dem Schraubenkörper vom zu kühlenden Medium durchströmt sind und der Schraubenkörper vom Kühlmedium umströmt ist.The The invention relates to a cooling device for a Internal combustion engine with an inner tube, which is cooled by the Medium is flowed through, an outer tube and a bolt body disposed between the inner pipe and the outer pipe, its inner diameter is substantially the outer diameter of the inner tube and its outer diameter in the Substantially corresponds to the inner diameter of the outer tube, the screw threads of the screw body between the inner tube and the screw body to be cooled Medium are flowed through and the screw body flows around the cooling medium.
Derartige Kühlvorrichtungen dienen in Kraftfahrzeugen beispielsweise als Abgaskühler zur Reduzierung von Schadstoffen. Der Vorteil solcher Schraubenkühler ist der relativ geringe vorhandene Druckverlust, der zu einer möglichen Erhöhung des Durchflusses bei gegebenen Druckverhältnissen führt. Bekannt sind Kühlvorrichtungen, bei denen Kühlschlangen als gewundene Rohre um das Innenrohr angeordnet sind. Diese weisen jedoch aufgrund der relativ geringen Wärmeübertragungsflächen einen unzureichenden Wirkungsgrad auf.such Cooling devices are used in motor vehicles, for example as an exhaust gas cooler to reduce pollutants. The advantage such screw coolers is the relatively low pressure drop existing, which leads to a possible increase in the flow leads at given pressure conditions. Known are cooling devices where cooling coils are arranged as wound tubes around the inner tube. These wise however due to the relatively low heat transfer surfaces an insufficient efficiency.
Des
Weiteren ist aus der
Es stellt sich daher die Aufgabe, eine Kühlvorrichtung zu schaffen, welche einen hohen Wirkungsgrad bei geringem Druckverlust aufweist, leicht zu montieren ist und bei der gleichzeitig insbesondere bezüglich der radialen Ausdehnung ein möglichst geringer Bauraum benötigt wird.It therefore sets itself the task of a cooling device create which a high efficiency with low pressure loss has, is easy to assemble and at the same time in particular with respect to the radial extent of the smallest possible Space is needed.
Diese Aufgabe wird dadurch gelöst, dass der Schraubenkörper mehrgängig ausgeführt ist, wobei die Schraubengänge axial hintereinander angeordnet sind, wobei entsprechend der Anzahl der Schraubengänge Eintrittsöffnungen am ersten axialen Ende des Schraubenkörpers und Austrittsöffnungen am zweiten axialen Ende des Schraubenkörpers angeordnet sind. Es ergeben sich somit im Querschnitt jeweils mehrere zueinander parallel liegende vom zu kühlenden Medium durchströmte Schraubengänge, welche über die Trennwand des Schraubenkörpers in Wärmeaustausch mit dem Kühlmedium stehen. Dies bedeutet, dass eine große Menge heißen Abgases gleichzeitig durch eine entsprechende Menge kalten Kühlmittels gekühlt wird. Da in diesem Bereich der Temperaturgradient zwischen den beiden Medien am höchsten ist, entfaltet sich hier die höchste Kühlwirkung. Gleichzeitig bleibt der in radialer Richtung verwendete Bauraum unverändert zu einem eingängigen Schraubenkörper. Da der Wärmetauscher im Wesentlichen aus nur drei Teilen besteht, ist der Herstellungsaufwand sehr gering.These Task is solved in that the screw body is designed to be multi-threaded, with the screw threads are arranged axially one behind the other, wherein according to the number the screw threads inlet openings on the first axial end of the screw body and outlet openings arranged at the second axial end of the screw body are. Thus, each result in cross-section each other flowing parallel from the medium to be cooled Schraubengänge, which over the partition of the Screw body in heat exchange with the cooling medium stand. This means that a large amount of hot Exhaust gases simultaneously by a corresponding amount of cold coolant is cooled. Because in this area the temperature gradient between the two media is highest unfolds here the highest cooling effect. At the same time remains the space used in the radial direction unchanged to a catchy screw body. As the heat exchanger essentially consists of only three parts, is the manufacturing cost very low.
Vorzugsweise sind am Außenrohr ein Kühlmitteleinlassstutzen und ein Kühlmittelauslassstutzen angeordnet. Somit strömt das Kühlmittel im äußeren Bereich, wodurch die Kühlmittelstutzen auf einfache Weise am Außenrohr befestigt werden können. Ein Durchdringen eines weiteren äußeren Gehäuseteils ist entsprechend nicht erforderlich, wodurch Abdichtungsprobleme vermieden werden. Bei entsprechender Ausführung insbesondere des Kühlmitteleinlassstutzens können somit die axial hintereinander liegenden Schraubengänge, welche gleichzeitig vom zu kühlenden Medium durchströmt werden, auch im Wesentlichen gleichzeitig mit dem noch kalten Kühlmedium beaufschlagt werden.Preferably are on the outer tube a coolant inlet nozzle and a Kühlmittelauslassstutzen arranged. Thus flows the coolant in the outer area, causing the coolant connection in a simple way on the outer tube can be attached. A penetration of another outer Housing part is accordingly not required, which Sealing problems are avoided. With appropriate execution in particular the coolant inlet nozzle can thus the axially successive screw threads, which simultaneously flows through the medium to be cooled be substantially simultaneously with the still cold cooling medium be charged.
In einer bevorzugten Ausführung ist der Schraubenkörper im Druckgussverfahren hergestellt, wobei der Innendurchmesser in axialer Richtung konisch zulaufend ausgeführt ist und der Außendurchmesser konstant ist. Dies erleichtert die Herstellung des Schraubenkörpers, da das formende Werkzeug bei der Herstellung des Schraubenkörpers mit einer kleinen Verdrehung im Werkstück gelöst werden kann. Diese Drehung erfolgt bereits in einer frühen Erstarrungsphase, das heißt vor dem Öffnen der äußeren Form. Die äußere zylindrische Form des Schraubenkörpers hat den Vorteil, dass für das Außenrohr ein Standardohr verwendet werden kann.In A preferred embodiment is the screw body produced by die casting, wherein the inner diameter in Axial direction is designed tapered and the Outer diameter is constant. This facilitates the production of the Screw body, as the forming tool in the manufacture of the screw body with a small twist in the workpiece can be solved. This rotation already takes place in one early solidification phase, that is before opening the outer shape. The outer one cylindrical shape of the screw body has the advantage that a standard ear is used for the outer tube can be.
In einer hierzu alternativen Ausführung ist der Schraubenkörper aus geformtem Blech hergestellt. Eine solche Ausführung zeichnet sich insbesondere durch die kostengünstige Herstellung aus.In an alternative embodiment is the screw body made of molded sheet metal. Such an execution is characterized in particular by the cost-effective production out.
In einer weiterführenden Ausführungsform ist am zweiten axialen Ende des Schraubenkörpers ein Deckel befestigt, wobei zwischen dem Deckel und dem axialem Ende des Schraubenkörpers ein Raum ausgebildet ist, über den das zu kühlende Medium in das Innenrohr und in Richtung zum ersten axialen Ende des Schraubenkörpers zurückströmt, an dem ein Auslassstutzen für das zu kühlende Medium angeordnet ist. Entsprechend können Einlass und Auslass in einer gemeinsamen Flanschebene angeordnet werden.In a further embodiment is on the second attached to the axial end of the screw body a lid, between the lid and the axial end of the screw body a space is formed over which the to be cooled Medium in the inner tube and toward the first axial end the screw body flows back to an outlet for the medium to be cooled is arranged. Accordingly, inlet and outlet be arranged in a common flange plane.
In einer hierzu alternativen Ausführungsform ist am zweiten axialen Ende des Schraubenkörpers ein Auslassstutzen für das zu kühlende Medium angeordnet, in den die Auslässe des Schraubenkörpers und des Innenrohres münden, wobei das Innenrohr als Bypasskanal zur Umgehung des Schraubenkörpers dient. Somit werden beide vom zu kühlenden Medium durchströmbaren Kanäle in der gleichen Richtung durchströmt. Durch eine entsprechend angeordnete Klappe wäre es somit möglich, eine Abgastemperatur zu regeln. Zusätzlich kann ein Verbrennungsmotor durch die Anordnung des Bypasskanals bei der Verwendung der Kühlvorrichtung als Abgaskühler schneller aufgeheizt werden.In an alternative embodiment is the second axial end of the screw body an outlet for arranged the medium to be cooled, in the outlets the screw body and the inner tube open, wherein the inner tube as a bypass channel for bypassing the screw body serves. Thus, both are flowed through by the medium to be cooled Passages in the same direction. By a correspondingly arranged flap would thus be possible to regulate an exhaust gas temperature. In addition, an internal combustion engine by the arrangement of the bypass channel when using the cooling device be heated up faster as exhaust gas cooler.
Vorzugsweise ist das Innenrohr doppelwandig ausgeführt. Die Doppelwandigkeit des Innenrohres dient dabei als Isolierung zum radial außen liegenden heißen vom zu kühlenden Medium durchströmbaren Kanal, so dass eine Aufheizung nach dem Kühlvorgang beim U-förmig durchströmten Kühler ebenso verhindert werden kann wie ein Wärmeverlust im Bypasskanal.Preferably the inner tube is double-walled. The double walledness the inner tube serves as insulation to the radially outside lying hot to be cooled by the medium to be cooled Channel, allowing heating after the cooling process U-shaped radiator flowed through as well can be prevented as a heat loss in the bypass channel.
Es wird somit eine Kühlvorrichtung geschaffen, deren radiale Ausdehnung und deren Druckverlust bei hohem Kühlerwirkungsgrad sehr gering sind. Die Anzahl der notwendigen Herstellungsschritte und somit die Montagekosten werden gleichzeitig im Vergleich zu bekannten Ausführungen deutlich reduziert.It Thus, a cooling device is provided, the radial Expansion and its pressure loss with high radiator efficiency are very low. The number of necessary manufacturing steps and therefore the installation costs are compared to at the same time known versions significantly reduced.
Zwei Ausführungsbeispiele erfindungsgemäßer Kühlvorrichtungen sind in den Figuren dargestellt und werden nachfolgend beschrieben.Two Embodiments of the invention Cooling devices are shown in the figures and are described below.
Die
in
Der
Schraubenkörper
Der
Schraubenkörper
An
den axialen Enden
Aus
Dies
bedeutet, dass in der
Im
Folgenden wird die Funktionsweise der Kühlvorrichtung gemäß der
Das
Abgas strömt über eine nicht dargestellte Abgasleitung
um das Innenrohr
Das
Abgas strömt von der Eintrittsöffnung
Es
wird ersichtlich, dass durch die Form der Schraubengänge
Die
in der
Die
Kühlvorrichtung gemäß der
Vor
diesem Bypasskanal
Verschließt
das Bypassventil die Eintrittsöffnungen
Es sollte deutlich sein, dass durch die beschriebenen Ausführungen eine radial sehr klein bauende Kühlvorrichtung geschaffen wird, die bei hoher vorhandener Kühlwirkung nur geringe Druckverluste aufweist. Zusätzlich ist diese Kühlvorrichtung kostengünstig herzustellen und mit wenigen Schritten zu montieren.It should be clear that through the described embodiments created a very small radial cooling device is that at low existing high cooling effect Has pressure losses. In addition, this cooling device is inexpensive produce and install in a few steps.
Selbstverständlich sind im Vergleich zu den beschriebenen Ausführungen verschiedene Modifikationen möglich, ohne den Schutzbereich des Hauptanspruchs zu verlassen. So kann beispielsweise der Schraubenkörper aus Aluminium- oder VA-Blechen hergestellt werden. Auch ist es selbstverständlich möglich, eine erfindungsgemäße Kühlvorrichtung mit zwei oder mehr als drei Schraubengängen und somit Eintrittsöffnungen auszuführen. Insbesondere ist es auch sinnvoll, die Kühlvorrichtung mit Rückströmung mit einem doppelwandigen Innenrohr auszuführen, da auf diese Weise ein nachträglicher Wärmeverlust des bereits gekühlten Abgases durch den Kontakt zum ungekühlten Abgas im Schraubengang vermieden wird. Weitere konstruktive Änderungen beispielsweise bezüglich der Anbindung der Einzelteile aneinander sind ebenfalls denkbar.Of course are different compared to the described embodiments Modifications possible without the scope of the main claim to leave. For example, the screw body made of aluminum or stainless steel sheets. It is also natural possible, a cooling device according to the invention with two or more than three screw threads and thus inlet openings perform. In particular, it makes sense, the cooling device with backflow with a double-walled inner tube perform in this way an afterthought Heat loss of the already cooled exhaust gas through avoided contact with the uncooled exhaust gas in the screw becomes. Other design changes, for example with regard to The connection of the individual parts to each other are also conceivable.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - FR 2304884 [0003] - FR 2304884 [0003]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008056810A DE102008056810B4 (en) | 2008-11-11 | 2008-11-11 | Cooling device for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008056810A DE102008056810B4 (en) | 2008-11-11 | 2008-11-11 | Cooling device for an internal combustion engine |
Publications (2)
Publication Number | Publication Date |
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DE102008056810A1 true DE102008056810A1 (en) | 2010-05-20 |
DE102008056810B4 DE102008056810B4 (en) | 2011-11-24 |
Family
ID=42104946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102008056810A Expired - Fee Related DE102008056810B4 (en) | 2008-11-11 | 2008-11-11 | Cooling device for an internal combustion engine |
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DE (1) | DE102008056810B4 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010044937A1 (en) * | 2010-09-10 | 2012-03-15 | Benteler Automobiltechnik Gmbh | Heat exchanger for use as component of exhaust gas recirculation part of combustion engine of motor car, has curved exhaust gas passage comprising helical curvature, where exhaust gas parts are made to flow through exhaust gas passage |
DE102012019254A1 (en) * | 2011-09-30 | 2013-04-04 | Scania Cv Ab | Exhaust gas recirculation cooler for cooling exhaust gas recirculation gases in internal combustion engine, has transfer pipe, which has transmission channel having inlet and outlet |
ES2535210A1 (en) * | 2015-03-09 | 2015-05-06 | Universidad Politécnica de Madrid | Penetration device of concentric tubes in heat exchanger with free expansion (Machine-translation by Google Translate, not legally binding) |
CN104819652A (en) * | 2015-05-07 | 2015-08-05 | 镇江飞利达电站设备有限公司 | Multi-medium coiled tube heat exchanger |
US20200224978A1 (en) * | 2019-01-15 | 2020-07-16 | Hamilton Sundstrand Corporation | Duct heat exchanger |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111654B (en) * | 1956-10-24 | 1961-07-27 | Hans Guentner | Tubular heat exchanger with a partition wall formed from a corrugated tube |
DE1601221A1 (en) * | 1966-11-11 | 1970-12-10 | Diedrich Menze | Heat exchanger |
FR2304884A1 (en) | 1975-03-17 | 1976-10-15 | Sepro | Fluid circulation type heat exchanger - has passage formed by spiral ribs in concentric cylindrical walls |
DE102006023809B3 (en) * | 2006-05-20 | 2007-09-13 | Pierburg Gmbh | Heat transfer unit for oil circulation system of turbo diesel engine, has channels streamed by respective fluids and arranged in housing, and by-pass channel arranged in housing, where one of channels is by-passed by by-pass channel |
DE102005058204B4 (en) * | 2005-12-02 | 2008-07-24 | Pierburg Gmbh | Cooling device for an internal combustion engine |
-
2008
- 2008-11-11 DE DE102008056810A patent/DE102008056810B4/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111654B (en) * | 1956-10-24 | 1961-07-27 | Hans Guentner | Tubular heat exchanger with a partition wall formed from a corrugated tube |
DE1601221A1 (en) * | 1966-11-11 | 1970-12-10 | Diedrich Menze | Heat exchanger |
FR2304884A1 (en) | 1975-03-17 | 1976-10-15 | Sepro | Fluid circulation type heat exchanger - has passage formed by spiral ribs in concentric cylindrical walls |
DE102005058204B4 (en) * | 2005-12-02 | 2008-07-24 | Pierburg Gmbh | Cooling device for an internal combustion engine |
DE102006023809B3 (en) * | 2006-05-20 | 2007-09-13 | Pierburg Gmbh | Heat transfer unit for oil circulation system of turbo diesel engine, has channels streamed by respective fluids and arranged in housing, and by-pass channel arranged in housing, where one of channels is by-passed by by-pass channel |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010044937A1 (en) * | 2010-09-10 | 2012-03-15 | Benteler Automobiltechnik Gmbh | Heat exchanger for use as component of exhaust gas recirculation part of combustion engine of motor car, has curved exhaust gas passage comprising helical curvature, where exhaust gas parts are made to flow through exhaust gas passage |
DE102012019254A1 (en) * | 2011-09-30 | 2013-04-04 | Scania Cv Ab | Exhaust gas recirculation cooler for cooling exhaust gas recirculation gases in internal combustion engine, has transfer pipe, which has transmission channel having inlet and outlet |
ES2535210A1 (en) * | 2015-03-09 | 2015-05-06 | Universidad Politécnica de Madrid | Penetration device of concentric tubes in heat exchanger with free expansion (Machine-translation by Google Translate, not legally binding) |
WO2016142561A1 (en) * | 2015-03-09 | 2016-09-15 | Universidad Politécnica de Madrid | Device for inserting concentric tubes in a heat exchanger with free expansion |
CN104819652A (en) * | 2015-05-07 | 2015-08-05 | 镇江飞利达电站设备有限公司 | Multi-medium coiled tube heat exchanger |
US20200224978A1 (en) * | 2019-01-15 | 2020-07-16 | Hamilton Sundstrand Corporation | Duct heat exchanger |
US11585611B2 (en) * | 2019-01-15 | 2023-02-21 | Hamilton Sundstrand Corporation | Duct heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
DE102008056810B4 (en) | 2011-11-24 |
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