EP3499165A1 - Vorrichtung zur wärmerückgewinnung, und entsprechendes herstellungsverfahren - Google Patents

Vorrichtung zur wärmerückgewinnung, und entsprechendes herstellungsverfahren Download PDF

Info

Publication number
EP3499165A1
EP3499165A1 EP18212721.7A EP18212721A EP3499165A1 EP 3499165 A1 EP3499165 A1 EP 3499165A1 EP 18212721 A EP18212721 A EP 18212721A EP 3499165 A1 EP3499165 A1 EP 3499165A1
Authority
EP
European Patent Office
Prior art keywords
edge
housing
grid
heat exchanger
tubes
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Withdrawn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
EP18212721.7A
Other languages
English (en)
French (fr)
Inventor
Frédéric Greber
Yannick Fourcaudot
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.)
Faurecia Systemes dEchappement SAS
Original Assignee
Faurecia Systemes dEchappement SAS
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 Faurecia Systemes dEchappement SAS filed Critical Faurecia Systemes dEchappement SAS
Publication of EP3499165A1 publication Critical patent/EP3499165A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/0205—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • 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
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • 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
    • 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
    • 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
    • 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
    • F28D7/1684—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 the conduits having a non-circular cross-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
    • 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
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • 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
    • F28D9/0037—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 the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F2001/027—Tubular elements of cross-section which is non-circular with dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/02—Reinforcing means for casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F28F2275/067—Fastening; Joining by welding by laser welding
    • 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
    • F28F3/042—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 local deformations of the element
    • F28F3/044—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 local deformations of the element the deformations being pontual, e.g. dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the invention generally relates to heat recovery devices for exhaust lines.
  • Motor vehicle exhaust systems may include heat exchangers of the type shown on the figure 1 .
  • a heat exchanger 1 comprises a plurality of tubes 3 for circulating the exhaust gases. These tubes are held at each of their longitudinal ends by a grid 5.
  • a casing 7 is placed around the tubes 3 and grids 5.
  • the tubes 3, the grids 5 and the casing 7 are fixed to each other by brazing, in an oven.
  • Each grid 5 has an upstanding edge 9 facing outwardly of the heat exchanger, for attachment to a body 11, shown in FIG. figure 2 .
  • the body 11 is for example integrated with a three-way valve for selectively directing the exhaust gas either to the heat exchanger or to a bypass duct of the heat exchanger.
  • the extreme edge 13 of the upstanding edge 9 must be sufficiently far away from the junction between the grid 5 and the casing 7 so as not to melt the solder material solidarizing the grid 5 to the casing 7, during the welding of the grid 5 on the body 11.
  • the grid 5 has a generally rectangular shape. It can be formed from a flat sheet, the sides of which are folded so as to give it a bowl shape, and thus create the erected edge 9. The sheet is then pierced, so as to create the receiving orifices of the tubes 3.
  • the material When shaping the flat sheet, the material is compressed at each corner of the erected edge 9.
  • the surface condition inside the four corners is not good. There are wrinkles both inside and outside the bowl.
  • the shaping of the grid does not allow to have a good surface condition, nor good dimensional tolerances, in each corner of the erect edge 9.
  • the heat exchanger 1 can be fixed to a barrel stretching formed in the body 11.
  • the erected edge 9 is inserted inside the barrel 15.
  • the edges of the barrel drawing 15 are absolutely not planar, due to the elastic return of the material during forming.
  • the edges of the barrel stretch are not not perpendicular to the plane of the opening defined in the body 11, the draft angle being of the order of 2 °.
  • the clearance between the upstanding edge 9 of the grid and the barrel stretching 15 is not constant, and may be greater than 0.5 mm on average.
  • MAG Metal Active Gas
  • the length of the erect edge 9 is limited by the fact that the compression of the material in the corners becomes impossible beyond a certain limit.
  • the barrel stretch has a maximum length, related to the maximum allowable elongation of the material.
  • the MAG process has known defects, the most important of which is to deform the parts to be welded, because these parts are heated at high temperature, and locally.
  • the invention aims to provide a heat recovery device that does not have the above defects.
  • the grid is turned in the opposite direction of the figure 1 .
  • This allows the connection between the body and the grid at the level of the plane surface of the grid surrounding the receiving holes of the tubes. It is therefore no longer necessary to perform a canon stretching around the opening of the body, the connection between the body and the gate being made at two flat surfaces, parallel to one another.
  • the height of the erected edge is less important than on the figures 1 and 2 because it is not necessary to extend it to the level of the free edge of the barrel stretching. It is only necessary to join the housing of the heat exchanger. The manufacture of the grid is easier, and the deformations less pronounced.
  • the heat recovery device 17 is intended to be integrated in an exhaust line, typically an exhaust line of a vehicle equipped with a heat engine.
  • the vehicle is for example a motor vehicle, typically a car or a truck.
  • the heat recovery device 17 is provided to recover a portion of the heat energy of the exhaust gas flowing in the exhaust line.
  • the heat energy thus recovered is used in the vehicle, for example to accelerate the rise in temperature of the engine, or to ensure the heating of the passenger compartment.
  • the heat recovery device 17 shown on the Figures 3 to 5 includes a body 19 ( figure 5 ) internally delimiting a passage 21 for circulation of the exhaust gas, and a heat exchanger 23.
  • the body 19 has an opening 25 through which the circulation passage 21 communicates with the heat exchanger 23.
  • the body 19 is for example a valve body.
  • the valve is typically a three-way valve, the body 19 having at least one inlet for the exhaust gas and two outlets, all communicating fluidly with the circulation passage 21.
  • the inlet is in fluid communication with the collector collecting the exhaust gas at the outlet of the combustion chambers of the engine.
  • One of the outlets constitutes the opening 25 and communicates with the exhaust gas flow side of the heat exchanger 23.
  • the other outlet opens into a bypass duct of the heat exchanger. On the figure 5 only the opening 25 has been shown.
  • the body 19 is an exhaust gas circulation duct, the heat exchanger being mounted as a bypass on this duct.
  • the heat exchanger 23 comprises a housing 27, and a plurality of exhaust gas circulation tubes 29, extending inside the housing 27.
  • the tubes 29 communicate fluidly with the circulation passage 21 through the opening 25.
  • the casing 27 has a proximal edge 31 delimiting a proximal opening 33.
  • the proximal edge 31 and the distal edge 35 are closed contours.
  • the heat exchanger 23 also comprises at least one grid 39 disposed in the proximal opening 33.
  • the grid 39 comprises a wall 41 in which orifices 43 are formed.
  • Each tube 29 has a proximal end 45, engaged in one of the orifices 43 and fixed to the grid 39.
  • the heat exchanger 23 comprises another gate 47 disposed in the distal opening 37.
  • the other gate 47 comprises a wall 49 in which orifices 51 are formed.
  • Each tube 29 has a distal end 53 engaged in one of the orifices 51 and fixed to the other grid 47.
  • the grid 39 and the other gate 47 are identical in all respects. Only the grid 39 will therefore be described below in detail.
  • the tubes 29 are rectilinear, and extend longitudinally from the proximal end 45 to the distal end 53.
  • Each tube 29 thus has two large faces 55, 57, opposite to one another, and connected to one another by slices 59.
  • the large faces 55, 57 extend substantially in planes containing the longitudinal directions L and transverse T. These planes are perpendicular to a direction of elevation E, materialized on the figure 3 .
  • the tubes 29 are all stacked in the direction of elevation.
  • the heat exchanger 23 in a transverse plane comprises at most a single tube.
  • Each tube 29 thus extends substantially over the entire transverse width of the heat exchanger 23.
  • the tubes 29 are stacked so that the large face 55 of a given tube is placed opposite the large face 57 of the tube immediately below in the stack in the direction of elevation.
  • the fins 61 are placed inside each tube 29, so as to promote heat exchange gas side.
  • the fins 61 are for example made in the form of an accordion-folded metal foil and introduced inside the tube 29.
  • the orifices 43 and 51 of the grids 39 and 47 have a shape conjugate with that of the tubes 29. They are therefore of elongated shape transversely and extend substantially over the entire width of the grid. They are arranged in a single column.
  • the grid 39 comprises an upstanding edge 60, extending around the wall 41 and projecting from the wall 41 towards the inside of the heat exchanger 23.
  • the wall 41 is substantially rectangular, with rounded corners. Consequently, the erected edge 60 comprises two sections 61 substantially parallel to each other extending in the transverse direction T, and two sections 63 substantially parallel to each other extending in the direction of E.
  • the two sections 61 are parallel to each other and extend in the transverse direction T.
  • the two sections 63 are parallel to each other and extend according to the elevation direction E.
  • the sections 61 and 63 are connected to each other by curved portions.
  • the erected edge 60 projects in the longitudinal direction L. As visible on the figure 4 it is engaged within the proximal edge 31 of the housing 27, the proximal edge 31 being pressed against an outer surface of the upstanding edge 60.
  • the upstanding edge 60 is rigidly fixed to the housing 27. More specifically, the proximal edge 31 is brazed on the erect edge 60.
  • the wall 41 of the grid 39 is offset outside the housing 27. It is offset along the longitudinal direction L. By this it is meant that it is not located inside the housing 27, but is located longitudinally beyond the proximal end 31 of the housing 27.
  • the wall 41 of the grid 39 has around the orifices 43 a flat surface 65 facing the body 19.
  • the flat surface 65 extends in a certain plane. This plane is perpendicular to the longitudinal direction L and therefore contains the transverse direction T and the elevation direction E.
  • the flat surface 65 extends all around the orifices 43.
  • the flat surface 65 is therefore closed contour.
  • This width is taken in a direction perpendicular to the line 67 of junction between the erected edge 60 and the wall 41. In other words, this width is taken in the direction of elevation E along the section 61 of the erected edge 60, and in the transverse direction T along the section 63 of the edge trained 60.
  • the flat surface 65 extends in the example shown to the junction line 67 between the upright edge 60 and the wall 41, that is to say to the outer edge of the wall 41.
  • the opening 25 is cut in a wall of the body 19.
  • This flat zone 68 delimits on one side the inside of the circulation passage 21, and is therefore directly in contact with the exhaust gas. At the opposite, it is in contact with the grid 39 of the heat exchanger.
  • the opening 25 of the body 19 is delimited by a flat edge 69, pressed against the flat surface 65.
  • the flat edge 69 is therefore on one side in contact with the flat surface 65, and opposite the flat surface 65, with the exhaust gas circulating in the body 19.
  • the flat surface 65 and the flat edge 69 are rigidly attached to each other in an exhaust gas-tight manner.
  • the flat surface 65 and the flat edge 69 are directly attached to each other.
  • the flat zone 68 bears no relief around the flat edge 69, so as to allow the position of the grid 39 to be adjusted relative to the body 19.
  • the other grid 47 is also mounted on a flat area, so that it is possible to adjust the positions of the two ends of the heat exchanger relative to each other.
  • the flat edge 69 has towards the heat exchanger 23 a flat outer surface 71, pressed against the flat surface 65.
  • This flat outer surface 71 extends in a plane, this plane being perpendicular to the longitudinal direction L in the example shown.
  • the edge 69 has a closed contour and extends all the way around the opening 25.
  • the opening 25 is of such size and shape that all the orifices 43 are located at the right of said opening 25.
  • the proximal ends 45 of the tubes 29 project beyond the grid 39, and penetrate slightly inside the opening. the opening 25, as illustrated on the figure 5 .
  • the heat exchanger 23 further comprises a reinforcing grid 73, arranged to reinforce the connection between the tubes 29 and the grid 39. It advantageously comprises another reinforcing grid 75, arranged to reinforce the connection between the tubes 29 and the Another gate 47.
  • the gate 73 and the gate 75 are identical, only the gate 73 is thus described below.
  • the reinforcing grid 73 is a plate in which lights 77 have been formed.
  • the lights 77 are delimited by passes 79 ( figure 5 ) and are each traversed by the proximal end 45 of one of the tubes 29.
  • the lights 77 are placed facing each of one of the orifices 43.
  • the necks 79 are brazed on the tubes 29.
  • the peripheral edge 81 of the reinforcing plate, and the fields 83 located between the lights 77, are brazed on the inner surface of the wall 41.
  • proximal edge 31 and the distal edge 35 of the housing 27 are located at the two opposite longitudinal ends thereof.
  • the casing 27 is made of two half-shells 85, 87.
  • the half-shells 85, 87 are joined to each other by brazing, along two longitudinal lines 89 (FIG. figure 6 ).
  • Each half-shell 85, 87 has a U-section in a plane perpendicular to the longitudinal direction L.
  • the casing 27 has a central tubular portion 91 having a first straight section, the proximal opening 33 having a second section greater than the first section ( figure 4 ). Similarly, the distal opening 37 has a section greater than the first section, and typically equal to the second section.
  • the proximal edge 31 of the casing 27 is connected to the central tubular portion 91 by a tubular section 93 which flares out from the central tubular portion 91.
  • the distal edge 35 of the casing 27 is connected to the central tubular portion 91 by another tubular portion 95 which flares out from the central tubular portion 91.
  • the tubular section 93 delimits a heat transfer fluid circulation channel 97 along the gate 39.
  • the tubular section 95 delimits a heat transfer fluid circulation channel 98 in contact with the other gate 47.
  • the passage section offered to the coolant by the circulation channel 97, and also by the channel 98, is significantly higher than in the heat exchanger shown in FIG. figure 1 .
  • the flat surface 65 of the wall 41 is much wider in the invention than in the heat exchanger of the figure 1 . Indeed, this flat surface 65 is voluntarily enlarged in the invention, to allow a good quality waterproof fastening of the flat edge 69 on the flat surface 65.
  • the wall 41 is in the invention deported outside the housing 27.
  • the wall in which are formed the tube receiving orifices is placed inside the housing 7.
  • This large passage section 97 is particularly advantageous, since it is thus possible to increase the flow of heat transfer fluid in contact with the grid 39.
  • the gate 39 is typically located at the entrance of the exhaust gas inside. of the heat exchanger.
  • the heat exchangers used in the exhaust lines must never boil. The most critical boiling point is always located on the exhaust gas inlet side, ie in the zone where the exhaust gases are the hottest. In case of boiling, the heat transfer fluid is transformed into vapor, so that the heat exchange at the inlet of the heat exchanger is locally gas-gas.
  • the skin temperature of the exchanger increases rapidly, and can approach the temperature of the exhaust gas (of the order of 850 ° C for example). This may locally create a thermal shock and thermal gradients causing breaks, and therefore leaks, at the solder solidarisant the various components of the heat exchanger to each other.
  • the casing 27 has a heat-transfer fluid inlet 99 and a heat-transfer fluid outlet 101 ( figures 3 and 6 ).
  • the inlet 99 and the heat transfer fluid outlet 101 are formed in the half-shell 87.
  • the inlet 99 and the heat transfer fluid outlet 101 are arranged side by side, and offset longitudinally, one by report to the other.
  • the inlet 99 is located on the side of the gate 39, and the outlet 101 on the side of the gate 47.
  • the coolant inlet 99 is located towards the exhaust gas inlet and the 101 output of heat transfer fluid to the exhaust gas outlet.
  • the coolant inlet 99 is located in the central tubular portion 91 of the housing 27.
  • the central tubular part 91 has a zone 103 projecting outwardly of the housing 27, extending from the inlet 99 of heat transfer fluid to the heat transfer fluid circulation channel 97, along the gate 39.
  • Area 103 is not represented on the Figures 3 to 5 .
  • the casing 27 has two large faces 105 and 107, substantially perpendicular to the elevation direction E, and two lateral faces 109, substantially perpendicular to the transverse direction T, and connecting the faces 105 and 107 to each other. 'other.
  • the inlet 99 of coolant, and typically the heat transfer fluid outlet 101, are formed in one of the lateral faces 109.
  • the projecting zone 103 is advantageously formed on the large surface 107. It has a generally triangular shape, such as visible on the figure 7 . It extends transversely from the inlet 99 of heat transfer fluid to the side face 109 opposite the inlet 99 of heat transfer fluid. Its width, taken in the longitudinal direction, decreases from the inlet 99 of heat transfer fluid to the side face 109 opposite the inlet 99 of heat transfer fluid.
  • the protruding zone 103 protrudes with respect to a central zone 111 of the central tubular portion 91 over a height substantially equal to that of the proximal end 31.
  • the protruding zone 103 makes it possible to collect the coolant at the inlet 99 of heat transfer fluid, and to direct it preferentially towards the circulation channel 97. This promotes cooling at the inlet of the heat exchanger and limits the risk of boiling.
  • the casing 27 also comprises another projecting zone 112, extending from the heat transfer fluid outlet 101 to the heat transfer fluid circulation channel 98 along the other gate 47 (FIG. figure 7 ).
  • the projecting zone 112 is symmetrical with the protruding zone 103 with respect to the median plane of the heat exchanger perpendicular to the longitudinal direction L.
  • the tubes 29 have protuberances 113 forming spacers maintaining a determined spacing between the tubes 29, and between the tubes 29 and the housing 27. These protuberances 113 are distributed over the large faces 55 and 57 of the tubes.
  • each of the large faces 55, 57 carries about ten protuberances 113.
  • the protuberances 113 project outwardly from the tubes 29. They are obtained by deformation of the metal constituting the tube 29.
  • the protuberances 113 in contact with the housing 27 are all located outside the heat transfer fluid circulation channel 97 along the gate 39, and typically also outside the heat transfer fluid circulation channel 98 along the other gate 47. .
  • these protuberances are also located outside the projecting zone 103 and outside the projecting zone 112.
  • the protuberances 113 formed on the large face 55 of a tube 29 are located vis-a-vis the protuberances 113 formed on the large face 57 of the same tube 29.
  • vis-à-vis we opposite to each other in the direction of elevation E.
  • the protuberances 113 formed on a given tube 29 are located in the extension of the protuberances 113 of the other tubes 29 in the direction of elevation E, as illustrated on the figure 4 .
  • all the tubes 29 have protuberances 113 having the same arrangement on their two opposite large faces 55, 57, such that these protuberances 113 form column stacks, in the direction of elevation E. is favorable for increasing the rigidity of the heat exchanger 23.
  • the flat surface 65 of the grid 39 extends in a first plane P1, the orifices 43 being surrounded by a rim 115 adjoining the flat surface 65, the rim 115 extending in a second plane P2 parallel to the first plane P1 and shifted inwardly of the heat exchanger 23 relative to the first plane P1. This is illustrated on the figure 8 .
  • the flange 115 extends over the entire periphery of the orifices 43. It is closed contour, and is adjacent to the flat surface 65. It is separated from the flat surface 65 by a step.
  • the brazing material can not spread on the flat surface 65. It is retained by the step separating the rim 115 from the flat surface 65.
  • the invention according to another aspect relates to the method of manufacturing the heat recovery device 17 described above.
  • the other grid 47 is soldered to the casing 27 and to the tubes 29.
  • reinforcing grids 73, 75 are advantageously assembled by soldering to the tubes 29 and the grids 39, 47, at the same step.
  • the assembly step also makes it possible to secure the half-shells 85, 87 of the casing 27 to one another.
  • the housing 27 is assembled to the grid 39 by brazing the proximal edge 31 on the upright edge 60.
  • the tubes 29 are joined to each other by brazing, this brazing being preferably carried out at the level of the protuberances 113.
  • the tubes 29 are assembled to the housing 27 by brazing the protuberances 113 on the housing 27, and more precisely on the central tubular portion 91 of the housing 27.
  • the brazing step is advantageously carried out in an oven.
  • this weld is made by transparency, through the flat edge 69.
  • the weld line is closed contour, and extends around the entire periphery of the opening 25.
  • solder paste is deposited between the flat edge 69 and the flat surface 65.
  • the solder paste is melted, for example by placing the body 19 and the heat exchanger 23 in an oven.
  • the brazing of the flat surface 65 and the flat edge 69 can be performed at the same time as the soldering of the different elements of the heat exchanger to each other.
  • the heat recovery device 17, and the corresponding manufacturing method may have multiple variants.
  • the gate 47 disposed in the distal opening 37 of the housing 27 could be of a different type from that arranged in the proximal opening 33.
  • the tubes 29 do not necessarily have the form described above. They could be of circular section, or oval, or any other adapted section. These tubes are not necessarily rectilinear, but in a variant are curved. In this case, the distal opening 37 of the casing 27 is not necessarily placed longitudinally opposite the proximal opening 33.
  • the heat transfer fluid is typically a liquid. Alternatively, it is another type of fluid.
  • the heat exchanger 23 is not necessarily symmetrical with respect to a median transverse plane of the heat exchanger. It may not include a channel 98 for circulating the coolant in contact with the other grid 47 and / or have no protruding zone 112.
  • the wall 41 of the grid 39 can have all kinds of shapes. It is not necessarily rectangular. Alternatively, the wall 41 is circular, or elliptical, or has any other suitable form.
  • the opening 25 formed in the body 19 does not have a rectangular shape either. It typically has a shape corresponding to the shape of the grid 39, and more particularly to the shape of the wall 41.
  • the upright edge 60 is not necessarily engaged within the proximal edge 31 of the housing 27. In a variant, it is the proximal edge 31 of the housing 27 which is engaged in the upright edge 60 of the grid 39.
  • the casing 27 does not necessarily consist of two half-shells 85, 87 assembled to one another. It could be obtained by rolling a sheet around a longitudinal axis, or by deformation of a pipe section.
  • the tubes 29 can be arranged in a variety of different ways inside the heat exchanger 23. In particular, it is possible to place several tubes 29 next to one another transversely and not just one as described above. .
  • the flat surface 65 does not necessarily extend in a single plane. It may comprise several planar zones, arranged in several planes parallel to each other or inclined relative to each other. In these cases, the flat edge 69 has substantially the same shape as the flat surface 65. In any case, the flat edge 69 and the flat surface 65 are in contact with one another on a closed contour area surrounding the opening 25 and surrounding all the orifices 43, 51. This zone is sufficiently wide to allow the attachment of the flat surface 65 and the flat edge 69 to each other, preferably by laser welding or brazing.

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)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP18212721.7A 2017-12-15 2018-12-14 Vorrichtung zur wärmerückgewinnung, und entsprechendes herstellungsverfahren Withdrawn EP3499165A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1762294A FR3075343B1 (fr) 2017-12-15 2017-12-15 Dispositif de recuperation de chaleur et procede de fabrication correspondant

Publications (1)

Publication Number Publication Date
EP3499165A1 true EP3499165A1 (de) 2019-06-19

Family

ID=61187522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18212721.7A Withdrawn EP3499165A1 (de) 2017-12-15 2018-12-14 Vorrichtung zur wärmerückgewinnung, und entsprechendes herstellungsverfahren

Country Status (5)

Country Link
US (1) US20190186324A1 (de)
EP (1) EP3499165A1 (de)
JP (1) JP6759319B2 (de)
KR (1) KR102150984B1 (de)
FR (1) FR3075343B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211178097U (zh) * 2019-11-05 2020-08-04 杭州三花微通道换热器有限公司 换热管和换热器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803907A1 (fr) * 1999-12-15 2001-07-20 Denso Corp Echangeur de chaleur pour gaz d'echapement
US20030010479A1 (en) * 2001-07-10 2003-01-16 Takayuki Hayashi Exhaust gas heat exchanger
DE102009013535A1 (de) * 2009-03-19 2010-09-23 Behr Gmbh & Co. Kg Thermoelektrische Vorrichtung
WO2014064086A2 (fr) * 2012-10-25 2014-05-01 Valeo Systemes Thermiques Échangeur thermique, notamment pour vehicule automobile

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19833338A1 (de) * 1998-07-24 2000-01-27 Modine Mfg Co Wärmetauscher, insbesondere Abgaswärmetauscher
JP3903869B2 (ja) * 2001-07-26 2007-04-11 株式会社デンソー 排気熱交換器
DE10214467A1 (de) * 2002-03-30 2003-10-09 Modine Mfg Co Abgaswärmetauscher für Kraftfahrzeuge
WO2003102486A1 (fr) * 2002-05-31 2003-12-11 Zexel Valeo Climate Control Corporation Echangeur de chaleur
DE102004045021B4 (de) * 2004-09-15 2013-07-11 Behr Gmbh & Co. Kg Wärmetauscher für Verbrennungsmotoren
JP4817879B2 (ja) * 2006-02-23 2011-11-16 マルヤス工業株式会社 熱交換器
CN101340468A (zh) * 2007-07-04 2009-01-07 深圳富泰宏精密工业有限公司 便携式电子装置
JP6296837B2 (ja) * 2014-03-07 2018-03-20 株式会社ティラド タンクのシール構造
CN110686538B (zh) * 2015-10-29 2021-01-08 株式会社T.Rad 无集管板型热交换器芯的结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803907A1 (fr) * 1999-12-15 2001-07-20 Denso Corp Echangeur de chaleur pour gaz d'echapement
US20030010479A1 (en) * 2001-07-10 2003-01-16 Takayuki Hayashi Exhaust gas heat exchanger
DE102009013535A1 (de) * 2009-03-19 2010-09-23 Behr Gmbh & Co. Kg Thermoelektrische Vorrichtung
WO2014064086A2 (fr) * 2012-10-25 2014-05-01 Valeo Systemes Thermiques Échangeur thermique, notamment pour vehicule automobile

Also Published As

Publication number Publication date
FR3075343A1 (fr) 2019-06-21
JP2019109038A (ja) 2019-07-04
JP6759319B2 (ja) 2020-09-23
FR3075343B1 (fr) 2020-01-10
KR102150984B1 (ko) 2020-09-02
KR20190072468A (ko) 2019-06-25
US20190186324A1 (en) 2019-06-20

Similar Documents

Publication Publication Date Title
EP2715268B1 (de) Sammelkasten, wärmetauscher mit diesem sammelkasten und verfahren zum bördeln eines derartigen kastens
EP2912396B1 (de) Wärmetauscher, insbesondere für ein kraftfahrzeug
EP2689205B1 (de) Anschlussbewehrung zwischen platten eines wärmetauschers
WO2013050394A1 (fr) Echangeur de chaleur à plaques empilées
EP2502016A2 (de) Wärmetauscher für gase, im besonderen für motorabgase
EP1780490B1 (de) Sammelkasten für Wärmetauscher
EP1739375A1 (de) Wärmetauscher mit erhöhter Kompaktheit und Druckfestigkeit
FR2803907A1 (fr) Echangeur de chaleur pour gaz d'echapement
EP3499165A1 (de) Vorrichtung zur wärmerückgewinnung, und entsprechendes herstellungsverfahren
FR2892804A1 (fr) Boite collectrice pour echangeur de chaleur, notamment pour evaporateur de climatisation, echangeur comportant une telle boite et procede pour sa fabrication
FR2832788A1 (fr) Profils de tubes pour echangeur thermique
EP2920524A2 (de) Kühlmodul für wärmeplatte
FR2923589A1 (fr) Echangeur de chaleur brase de type fluide/fluide
EP3394553B1 (de) Wärmetauscher, insbesondere für ein kraftfahrzeug
EP2877804A1 (de) Wärmetauscher für ein kraftfahrzeug mit einem befestigungsflansch
FR2933015A1 (fr) Procede d'assemblage de pieces, les pieces et echangeur de chaleur
FR2837917A1 (fr) Echangeur de chaleur, notamment pour un vehicule automobile, constitue d'elements tubulaires empiles
EP2901097B1 (de) Wärmetauscher, insbesondere für kraftfahrzeug, und dazugehöriges montageverfahren
EP3308096B1 (de) Wärmetauscher für ein kraftfahrzeug
EP3430339A2 (de) Wärmetauscher, insbesondere für ein fahrzeug, speziell ein kraftfahrzeug
WO2014048960A1 (fr) Plaque collectrice pour echangeur de chaleur
FR3034184A1 (fr) Boite collectrice pour echangeur thermique a faisceau de tubes
WO2024008644A1 (fr) Dispositif de regulation thermique, notamment de refroidissement
FR3088710A1 (fr) Echangeur de chaleur pour vehicule automobile
WO2004102103A2 (fr) Echangeur de chaleur, notamment, pour automobile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191119

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200731

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210909

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220120