EP1455079B1 - Dispositif de transfert de chaleur entre le gaz d'échappement et un fluide de refroidissement - Google Patents

Dispositif de transfert de chaleur entre le gaz d'échappement et un fluide de refroidissement Download PDF

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Publication number
EP1455079B1
EP1455079B1 EP04000419A EP04000419A EP1455079B1 EP 1455079 B1 EP1455079 B1 EP 1455079B1 EP 04000419 A EP04000419 A EP 04000419A EP 04000419 A EP04000419 A EP 04000419A EP 1455079 B1 EP1455079 B1 EP 1455079B1
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EP
European Patent Office
Prior art keywords
heat transfer
globe
waste gas
exhaust gas
section
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.)
Expired - Lifetime
Application number
EP04000419A
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German (de)
English (en)
Other versions
EP1455079A2 (fr
EP1455079A3 (fr
Inventor
Uwe Bretag
Rolf Lange
Johannes Böke
Reimund Wilm
Jürgen Krogmeier
Rainer Isermann
Wulf HÄRTEL
Xiang Sun
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik 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 Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP1455079A2 publication Critical patent/EP1455079A2/fr
Publication of EP1455079A3 publication Critical patent/EP1455079A3/fr
Application granted granted Critical
Publication of EP1455079B1 publication Critical patent/EP1455079B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • 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
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • 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
    • F28D7/16—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 in parallel spaced relation
    • F28D7/163—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 in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1653—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 in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels

Definitions

  • the invention relates to a device for heat transfer between the exhaust gas of an internal combustion engine and a coolant and in particular an exhaust gas cooler in the exhaust gas recirculation to an internal combustion engine.
  • This has a housing inlet surrounded by a Abgaseinbergs- and exhaust gas outlet region and a heat transfer region arranged therebetween.
  • a bypass channel is integrated in the heat transfer area.
  • a control is used to control the exhaust gas flows through the heat transfer area or the bypass channel.
  • Such exhaust gas coolers are used in EGR (Exhaust Gas Recirculation) systems that are used in internal combustion engines to reduce the emission levels of the exhaust gas.
  • EGR exhaust Gas Recirculation
  • a part of the exhaust gases is returned to the intake manifold and then into the combustion chamber of the engine to lower the combustion temperature and thus the NOx production.
  • the exhaust gas must be routed past the cooler or bundled so that cooling no longer takes place or only marginally. This is realized by an adjustable bypass function, whereby the exhaust gas is temporarily diverted.
  • the described EGR system includes an EGR pipe connecting the exhaust pipe to the intake manifold of the engine.
  • an EGR cooler is used, which can be bypassed with the bypass tube.
  • the exhaust gas flow is controlled by means of a valve located at the junction between the bypass tube and the EGR tube with integrated radiator, wherein the known system is not a compact unit.
  • an exhaust heat transfer device in which exhaust gas heat is used to heat the passenger compartment.
  • the transfer device comprises two parallel juxtaposed tubes, a main tube and a bypass channel, which is provided with a heat exchanger.
  • the regulation of the gas flow flowing into the heat exchanger is achieved by means of a flap.
  • the bypass is integrated into the heat transfer area or the cooler. That in the DE 199 62 863 A1 described heat exchanger system is used during the warm-up phase of the engine to use the heat of the exhaust gas to ensure adequate and rapid heating of the vehicle interior. Heat is to be removed from the exhaust gas via a heat exchanger and fed to the cooling circuit of the engine in order to accelerate the heating of the cooling circuit with a radiator connected thereto for the vehicle interior.
  • a heat exchanger comprises a housing having an exhaust gas inlet and an exhaust gas outlet area and a heat transfer area, wherein a bypass channel is integrated into the heat transfer area.
  • bypass channel or the heat transfer area can be sealed or intermediate positions can be adjusted.
  • an actuator in the form of an adjustable plate is not suitable to take over control of the exhaust flow in an embodiment of a heat transfer area with a non-border near bypass.
  • the present invention seeks to provide a device for heat transfer between the exhaust of an internal combustion engine and a coolant, in particular a regulated EGR cooler, with a simple and safe working Abgaströmungsregelung at the same time compact design and independent to create the arrangement of the bypass channel in the heat transfer area.
  • the core idea of the invention is to use a ball as an adjusting element for regulating the exhaust gas flow and optional exhaust gas cooling. It is arranged either in the exhaust gas inlet region in front of the inlet opening of the bypass channel or analogously in the exhaust gas outlet region after the outlet opening of the bypass channel.
  • the flow control is achieved by rotating the ball between a first and a second rotational position.
  • the ball is designed so that in the first ball rotational position of the bypass channel is open and at the same time a flow through the heat transfer area is prevented.
  • the ball closes the bypass channel and allows a flow of the exhaust gas through the heat transfer area.
  • the ball has a central flow channel. This is in the first ball rotary position with the opening of the bypass passage in fluid communication.
  • the ball has radially in its outer spherical region, outside of the flow channel, at least one flow area. This runs transversely, preferably at right angles, to the flow channel.
  • the bypass passage is closed via the ball body, while exhaust gas is conducted via the outer flow area into and out of the heat transfer area.
  • intermediate positions between these two end positions are possible.
  • the ball can be made reproducible even at high volumes and allows safe and rapid control of the exhaust gas streams.
  • the actuating element is located either in the exhaust gas inlet or in the exhaust gas outlet region, wherein only the ball and no further closure at the respective other end of the component is necessary for the flow control.
  • the ball body In the first ball rotary position is prevented by the ball body itself that exhaust gas flows through the heat transfer area. This is achieved in that the ball body sealingly abuts against the housing inner wall of the exhaust gas inlet region or the exhaust gas outlet region. This means that at this point the diameter of the entry or exit region corresponds to the clear diameter of the sphere.
  • the respective flow areas are formed in the outer region of the ball as grooves. According to another embodiment, it is also possible that these flow areas are drilled into the ball in its outer region. It is only important that the ball in addition to the central flow channel radially in an outer sphere area further flow areas, such as holes or outwardly open grooves having.
  • the groove solution is further developed in that grooves are introduced into the ball in such a way from the outside that a formed between the grooves ball segment, in particular a ball center segment, remains. This takes over the sealing function on the housing inner wall, to prevent exhaust gas from flowing through the heat transfer area in the first rotational position.
  • the ball according to the invention is produced, for example, by mechanical processing of a metallic solid sphere.
  • the grooves are milled from the outside into the ball.
  • the central flow channel is drilled into the ball body.
  • An alternative production is the cold extrusion, where appropriate, the pressing of the flow channel and the grooves is performed in two steps.
  • the ball is mounted in its rotational position before or after the bypass channel by a connected to the ball body rod or shaft to which is also rotated.
  • the rod protrudes beyond the housing wall of the entry or exit area and is rotated by appropriate actuating means.
  • a connecting piece which partially surrounds the ball is placed on the housing wall of the inlet region. On the other side, it takes up the exhaust gas supplying pipe. The same applies to the exhaust gas outlet area.
  • the proposed actuator in the form of a ball allows the flexible arrangement of the bypass channel in the heat transfer area.
  • the bypass channel may be centrally integrated, it may for example also be arranged close to the edge or directly on the edge of the heat transfer area.
  • the ball is then arranged accordingly and created the necessary space by adjusting the exhaust gas inlet or - exit area.
  • Fig. 1 shows an exhaust gas cooler 1, as it can be used in an EGR system.
  • the exhaust gas cooler 1 may be formed in one piece from a heat transfer area and an exhaust gas inlet and exhaust gas outlet area adjacent thereto at each end, which are enclosed by a common housing.
  • it consists of the heat transfer area 2, with which the exhaust gas inlet region 3, which is referred to below as a diffuser, and the exhaust gas outlet region 4 or the housing walls 5, 6 are connected.
  • a bypass channel 7 is centrally arranged in this embodiment.
  • tubes 8 arranged in parallel within a housing are soldered to perforated plates 9, which terminate the heat transfer area 2 at the end.
  • coolant flows, which enters or exits through corresponding nozzles 10, 11.
  • the coolant flows around the tubes 8.
  • the bypass channel 7 itself is a tube with a round cross-section, which is arranged with air-gap insulation with sliding fit within the heat transfer area 2 by being soldered to the perforated plates 9 as well. This has the advantage that the bypass channel 7 can be easily integrated as a cylindrical tube, on the other hand, the same manufacturing technology as in the tubes 8 can be used.
  • the housing walls 5, 6 of the diffuser 3 and the exhaust gas outlet region 4 are tapered to the inlet and outlet (E, A) and terminate in a connector 12, 13.
  • the connector 12, 13 takes the tube (not shown), the Exhaust AG moved on or further to the intake manifold of the engine, on.
  • a ball 14 or a spherical adjusting element is rotatably arranged to control the exhaust gas flows through the heat transfer area 2 or the bypass channel 7.
  • the ball 14 is located immediately in front of the inlet opening 15 of the bypass channel 7.
  • the training and operation of the ball 14 is from the Fig. 2, 3rd and 4 seen. These show the heat transfer area 2 with arranged in front of ball 14 without housing wall of the diffuser.
  • the ball 14 has a central flow channel 16 or a central bore with a uniform diameter through the spherical body.
  • the diameter of the flow channel 16 corresponds to the diameter of the inlet opening 15 of the bypass channel 7.
  • the flow channel 16-four flow-through regions 17 are introduced in the form of grooves.
  • the grooves or cut-in recesses or even slot-shaped notches extend in the embodiment shown perpendicular to the central flow channel 16. If necessary, they can also be slightly slanted if necessary.
  • a single flow area suffices. It is also possible to provide two, three or, as shown, four or, if necessary, more grooves. It is only important that in addition to a flow area and a ball segment to prevent the flow in the other ball rotational position remains, which comes to the housing inner wall of the diffuser or possibly.
  • four grooves of the ball solid body are formed in a gap shape so that perpendicular to the flow channel 16, a disk-shaped spherical center segment 18 remains with original ball diameter.
  • an adjusting rod 19 or shaft is arranged, via which the ball 14 about its axis of rotation, which is perpendicular to the bypass channel direction, adjustable. About this adjusting rod 19, the ball 14 is also stored.
  • the ball 14 In the first rotational position, the ball 14 is rotated so that the outlet of the flow channel 16 abuts against the inlet opening 15 of the bypass channel 7. In this position, the ball center segment 18 corresponding to the ball diameter lies flush against a correspondingly formed housing wall 5 of the diffuser, as is apparent Fig. 1 is recognizable.
  • the exhaust gas (AG) introduced through the pipe (not shown) and the fitting 12 is prevented from entering the heat transfer area 2 by this ball center segment 18.
  • the entire exhaust gas AG flows through the flow passage 16 in the bypass channel 7. Since this is insulated from the heat transfer area 2, the exhaust gas AG is not cooled in this first position.
  • the ball 14 is rotated by adjusting means (not shown) which act on the adjusting rod 19 in the second position, as in Fig. 3 and 4 is shown.
  • the bypass channel 7 is sealed by the spherical shape.
  • the grooves are incorporated only so deeply into the spherical body, that the remaining central spherical part closes the bypass channel 7.
  • the exhaust gas AG flows in this case through the connecting piece 12 via the flow areas 17 and grooves of the ball 14 in the diffuser 3 and from there into the tube bundle of the heat transfer area 2, where it is cooled by passing coolant.
  • the present device can be used in addition to the use in EGR systems in the exhaust system in the flow direction in front of a catalyst for setting a temperature window use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (9)

  1. Dispositif pour la transmission entre le gaz d'échappement (AG) d'un moteur à combustion interne et un agent refroidisseur, en particulier d'un refroidisseur de gaz d'échappement (1) lors du recyclage des gaz d'échappement vers un moteur à combustion interne, avec une zone de d'entrée des gaz d'échappement (3), entourée d'une paroi de carter (5, 6), et d'une zone de sortie des gaz d'échappement (4), et une zone de transmission thermique (2), disposée entre celles-ci, et avec un canal de dérivation (7) intégré dans la zone de transmission thermique (2, ainsi qu'un élément de réglage pour la commande des courants de gaz d'échappement à travers la zone de transfert thermique (2) ou le canal de dérivation,
    caractérisé en ce que,
    dans la zone d'entrée (3) ou de sortie (4) des gaz d'échappement, une bille (14) est installée à rotation, en tant qu'élément de réglage, en amont de l'ouverture d'entrée (15) ou en aval de l'ouverture de sortie du canal de dérivation (7), que la bille (14) présente un canal d'écoulement (16), qui, dans une première position de rotation de la bille, est en liaison d'écoulement avec l'ouverture d'entrée (15) ou de sortie du canal de dérivation (7), en empêchant simultanément un écoulement des gaz d'échappement (AG) à travers la zone de transmission thermique, en raison du corps sphérique,
    que la bille (14) présente, dans une zone sphérique extérieure du canal d'écoulement (16), au moins une zone de passage (17), qui s'étend perpendiculairement au canal d'écoulement (16) et qui, dans une deuxième position de rotation de la bille, permet un écoulement des gaz d'échappement (AG) à travers la zone de transmission thermique (2) en même temps qu'une fermeture du canal de dérivation (7) par le corps sphérique.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que,
    dans la première position de rotation de la bille, le corps sphérique vient porter de manière étanche contre le côté intérieur de la paroi de carter (5, 6) de la zone d'entrée (3) ou de la zone de sortie (4) des gaz d'échappement.
  3. Dispositif selon revendication 1 ou 2,
    caractérisé en ce que,
    dans la zone extérieure de la bille (14), les sections d'écoulement (17) sont respectivement des rainures.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    le corps sphérique entre en contact avec un segment non évidé en rainure, en particulier avec un segment central (18) de la bille (18), sur le côté interne de la paroi de carter (5, 6) de la zone d'entrée (3) ou de la zone sortie (4) des gaz d'échappement.
  5. Dispositif selon revendication 3 ou 4,
    caractérisé en ce que
    la bille (14) est un corps métallique plein, dans lequel sont fraisées de l'extérieur des rainures formant un segment central (18) de la bille, et dans lequel le canal d'écoulement (16), qui s'étend perpendiculairement aux rainures, est percé centralement.
  6. Dispositif selon l'une des revendications 1 à 5,
    caractérisé en ce que
    la bille présente une tige de réglage (19), qui coopère avec des organes de réglage, par l'intermédiaire desquels elle peut tourner autour de son axe, entre la première position et la deuxième positions, et que la bille est montée au moyen de cette tige de réglage.
  7. Dispositif selon l'une des revendications 1 à 6,
    caractérisé en ce que,
    sur l'extrémité d'admission ou d'évacuation de la paroi de carter (5, 6) de la zone d'entrée (3) ou de la zone de sortie (4) des gaz d'échappement, est installée une pièce de raccordement (12.13), qui accueille, sur son côté opposé à la zone de transmission thermique (2), un tube dans lequel circule les gaz d'échappement.
  8. Dispositif selon l'une des revendications 1 à 7,
    caractérisé en ce que,
    à l'intérieur de la zone de transmission thermique (2), s'étendent des tubes (8), disposés parallèlement, qui sont ouverts vers la zone d'entrée (3) ou vers la zone de sortie (4) des gaz d'échappement, peuvent être traversés par le gaz d'échappement (AG) et sont balayés par l'agent refroidisseur, dans la zone de transmission thermique (2), fermée avec des tôles perforées (9), et
    en ce que le canal de dérivation (7) est un tube cylindrique.
  9. Dispositif selon l'une des revendications 1 à 8,
    caractérisé en ce que,
    le canal de dérivation (7) est disposé centralement ou latéralement dans la zone de transfert thermique (2).
EP04000419A 2003-03-04 2004-01-12 Dispositif de transfert de chaleur entre le gaz d'échappement et un fluide de refroidissement Expired - Lifetime EP1455079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10309298 2003-03-04
DE10309298A DE10309298B3 (de) 2003-03-04 2003-03-04 Vorrichtung zur Wärmeübertragung zwischen dem Abgas eines Verbrennungsmotors und einem Kühlmittel

Publications (3)

Publication Number Publication Date
EP1455079A2 EP1455079A2 (fr) 2004-09-08
EP1455079A3 EP1455079A3 (fr) 2008-02-27
EP1455079B1 true EP1455079B1 (fr) 2009-03-11

Family

ID=32731143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04000419A Expired - Lifetime EP1455079B1 (fr) 2003-03-04 2004-01-12 Dispositif de transfert de chaleur entre le gaz d'échappement et un fluide de refroidissement

Country Status (3)

Country Link
EP (1) EP1455079B1 (fr)
AT (1) ATE425352T1 (fr)
DE (2) DE10309298B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2942500A1 (fr) 2014-05-07 2015-11-11 Benteler Automobiltechnik GmbH Échangeur thermique de gaz d'échappement doté d'un tube de dérivation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8602006B2 (en) * 2004-08-30 2013-12-10 Behr Gmbh & Co. Kg Valve, especially rotary piston valve, and exhaust gas return system comprising such a valve
DE102005039794B4 (de) * 2005-08-22 2010-06-10 J. Eberspächer GmbH & Co. KG Abgas-Wärmeübertrager
DE102011016886A1 (de) 2011-04-13 2012-10-18 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung mit einem Wärmetauscher für einen thermoelektrischen Generator eines Kraftfahrzeugs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423825A (en) * 1977-07-22 1979-02-22 Toyota Motor Corp Exhaust gas recirculator
FR2776015B1 (fr) * 1998-03-11 2000-08-11 Ecia Equip Composants Ind Auto Organe d'echappement a echangeur de chaleur
DE19962863B4 (de) * 1999-12-24 2013-09-19 Behr Gmbh & Co. Kg Wärmeübertrager
ES2272382T3 (es) * 2001-07-18 2007-05-01 Cooper-Standard Automotive (Deutschland) Gmbh Radiador de un sistema de reciclaje de gases de escape y sistema de reciclaje de gases de escape con un radiador de este tipo.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2942500A1 (fr) 2014-05-07 2015-11-11 Benteler Automobiltechnik GmbH Échangeur thermique de gaz d'échappement doté d'un tube de dérivation
DE102014106386A1 (de) 2014-05-07 2015-11-12 Benteler Automobiltechnik Gmbh Abgaswärmetauscher mit Bypassrohr
DE102014106386B4 (de) * 2014-05-07 2016-08-11 Benteler Automobiltechnik Gmbh Abgaswärmetauscher mit Bypassrohr
US9964075B2 (en) 2014-05-07 2018-05-08 Benteler Automobiltechnik Gmbh Exhaust-gas heat exchanger with bypass pipe

Also Published As

Publication number Publication date
ATE425352T1 (de) 2009-03-15
DE10309298B3 (de) 2004-08-19
EP1455079A2 (fr) 2004-09-08
EP1455079A3 (fr) 2008-02-27
DE502004009110D1 (de) 2009-04-23

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