EP2175221B1 - Dispositif frigorifique - Google Patents

Dispositif frigorifique Download PDF

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Publication number
EP2175221B1
EP2175221B1 EP09170901A EP09170901A EP2175221B1 EP 2175221 B1 EP2175221 B1 EP 2175221B1 EP 09170901 A EP09170901 A EP 09170901A EP 09170901 A EP09170901 A EP 09170901A EP 2175221 B1 EP2175221 B1 EP 2175221B1
Authority
EP
European Patent Office
Prior art keywords
housing
cooling
channel
cooling device
contours
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.)
Not-in-force
Application number
EP09170901A
Other languages
German (de)
English (en)
Other versions
EP2175221A3 (fr
EP2175221A2 (fr
Inventor
Bernhard Schwalk
Jörg Dittmann
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.)
Mahle International GmbH
Original Assignee
Mahle 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2175221A2 publication Critical patent/EP2175221A2/fr
Publication of EP2175221A3 publication Critical patent/EP2175221A3/fr
Application granted granted Critical
Publication of EP2175221B1 publication Critical patent/EP2175221B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/022—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being wires or pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/06—Hollow fins; fins with internal circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded

Definitions

  • Another cooling device is, for example, from the DE 10 2005 045 098 A1 known.
  • an air intake duct system which has a collection intake passage in which a cooling device is integrated.
  • the collecting inlet channel is for this purpose divided into two separate channels, of which a first in the normal operation of exhaust gas and a second is traversed by air and wherein the air flow in normal operation channel can serve as a bypass channel for an exhaust gas flow in the warm-up phase.
  • the entire air intake duct system is designed in such a way that it can be mounted by simply stacking the individual parts. As a result, in particular a significantly reduced number of parts compared to known systems to be achieved.
  • a heat exchanger with a coolant-flow channel and a flow-through of a fluid to be cooled channel known, wherein the two channels are separated by a wall.
  • ribs extend into at least one of the two channels, each rib having a line-shaped leading edge and two line-shaped trailing edges. The arrival and trailing edges limit two steadily extending side walls of the ribs.
  • the heat transfer device forms an integral part of the housing, for example in the form of molded-on cooling fins. Separately to be provided partition walls are thus also unnecessary, so that the cooling device according to the invention is structurally simple.
  • a nearly temperature-insensitive material is found by the use of metal die-casting for the housing, which withstands even high temperatures, such as those that can occur, for example, in an exhaust system of an internal combustion engine.
  • the provision of the housing contours, which form at least the second channel in the same during assembly of the housing can be realized by a correspondingly simple design or design of an injection mold.
  • a pivotable bypass flap is provided, through which a flow division between the first and the second channel takes place.
  • the bypass flap is controlled or regulated by a corresponding control / regulating device and divides the flowing in the cooling device flow to the first and second channel.
  • a first extreme position of the bypass flap the entire flow flows through the first channel and nothing through the second channel, while in the second extreme position of the pivotable bypass flap exactly the reverse.
  • the flow between the two channels can be divided almost arbitrarily.
  • Such a pivotable bypass flap allows a very precise and at the same time with respect to the required parts cost-effective control of the flowing gas stream in the cooling device.
  • a pivotable bypass flap 7 is provided, through which a flow division between the first channel 3 and the second channel 6 takes place.
  • the bypass valve 7 is merely one possible embodiment, so that generally also slides, valves, or the like can be used here.
  • the pivotable bypass flap 7 is pivotally mounted about an axis 8 and has outside the housing 2 an adjusting lever 9 which is rotatably connected to the bypass flap 7 and about which the position of the bypass flap 7 can be adjusted.
  • the bypass flap 7 is in a first extreme position in which it shuts off the second channel 6 and the entire flowing through the cooling device 1 gas flow passes exclusively through the first channel 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • General Details Of Gearings (AREA)

Claims (6)

  1. Dispositif de refroidissement (1) pour un moteur à combustion interne, notamment un dispositif de refroidissement de gaz d'échappement dans un véhicule automobile, comportant un boîtier (2) fabriqué selon un processus de moul age par injection sous pression, dans lequel un dispositif de transmission de chaleur (4) est disposé dans un premier canal (3),
    - dans lequel le boîtier (2) présente un deuxième canal (6) intégré, formé par des contours de boîtier (5,5'), qui est conçu comme un canal de dérivation et contourne le dispositif de transmission de chaleur (4),
    - dans lequel le canal (2) est conçu en deux parties,
    - dans lequel sur au moins une des deux parties de boîtier (10a,10b) des contours de refroidissement (11), notamment des nervures de refroidissement, sont réalisées, qui saillent à l'intérieur du premier canal (3), de préférence perpendiculairement à la direction d'écoulement,
    - caractérisé en ce que au moins un des contours de refroidissement (11) a une configuration creuse et est traversé par un fluide de refroidissement.
  2. Dispositif de refroidissement selon la revendication 1, caractérisé en ce que un clapet de dérivation (7) basculant est prévu, par l'intermédiaire duquel une division de l'écoulement entre le premier canal (3) et le deuxième canal (6) a lieu.
  3. Dispositif de refroidissement selon les revendications 1 ou 2, caractérisé en ce que sur les deux parties de boîtier (10a,10b) des contours de refroidissement (11)
    sont réalisés, qui s'emboîtent l'un dans l'autre quand le boîtier est monté (2).
  4. Dispositif de refroidissement de la revendication 3, caractérisé en ce que au moins un des contours de refroidissement (11) présente un alésage aveugle sollicité par un fluide de refroidissement.
  5. Dispositif de refroidissement selon une des revendications 1 à 4, caractérisé en ce que le boîtier est réalisé comme un boîtier moulé par injection sous pression en métal léger, notamment comme un boîtier en aluminium moulé par injection sous pression.
  6. Dispositif de refroidissement selon une des revendications 1 à 5, caractérisé en ce que le boîtier (2) est réalisé comme un boîtier en magnésium ou en zinc moulé par injection sous pression.
EP09170901A 2008-10-10 2009-09-22 Dispositif frigorifique Not-in-force EP2175221B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008051268A DE102008051268A1 (de) 2008-10-10 2008-10-10 Kühleinrichtung

Publications (3)

Publication Number Publication Date
EP2175221A2 EP2175221A2 (fr) 2010-04-14
EP2175221A3 EP2175221A3 (fr) 2011-12-14
EP2175221B1 true EP2175221B1 (fr) 2013-02-20

Family

ID=41503633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170901A Not-in-force EP2175221B1 (fr) 2008-10-10 2009-09-22 Dispositif frigorifique

Country Status (3)

Country Link
US (1) US20100089043A1 (fr)
EP (1) EP2175221B1 (fr)
DE (1) DE102008051268A1 (fr)

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Also Published As

Publication number Publication date
EP2175221A3 (fr) 2011-12-14
US20100089043A1 (en) 2010-04-15
DE102008051268A1 (de) 2010-04-15
EP2175221A2 (fr) 2010-04-14

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