EP1367252A2 - Gaswärmetauscher - Google Patents

Gaswärmetauscher Download PDF

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Publication number
EP1367252A2
EP1367252A2 EP03012023A EP03012023A EP1367252A2 EP 1367252 A2 EP1367252 A2 EP 1367252A2 EP 03012023 A EP03012023 A EP 03012023A EP 03012023 A EP03012023 A EP 03012023A EP 1367252 A2 EP1367252 A2 EP 1367252A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tank
outlet
exchanger
stamping
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Withdrawn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
EP03012023A
Other languages
English (en)
French (fr)
Other versions
EP1367252A3 (de
Inventor
Javier Gracia Rodrigo
Benjamin Gracia Lazaro
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.)
Valeo Termico SA
Original Assignee
Valeo Termico SA
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 Valeo Termico SA filed Critical Valeo Termico SA
Publication of EP1367252A2 publication Critical patent/EP1367252A2/de
Publication of EP1367252A3 publication Critical patent/EP1367252A3/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • 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
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • 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

Definitions

  • the present invention relates to a heat exchanger for gas, in particular for a exhaust gas recirculation from an engine.
  • the gases exhaust Before being mixed with the intake air, the gases exhaust can be cooled in an exchanger heat (EGRC or "Exhaust Gas Recycling Cooler”) installed in the EGR system loop to improve system performance.
  • EGRC Exhaust Gas Recycling Cooler
  • the system loop also has a valve (EGR valve) which regulates the passage of gases exhaust through this one.
  • EGR valve a valve which regulates the passage of gases exhaust through this one.
  • the actual heat exchanger may have distinct configurations: it can, for example, consist of a tubular carcass inside which is arranged a network of parallel tubes for the passage of gases, the refrigerant circulating in the carcass, outside the tubes; in an other embodiment, the exchanger comprises a series of plates parallel constituting the exchange surfaces of heat, so that the exhaust gases and the refrigerant circulate between two plates, in layers alternating.
  • Said heat exchangers include at least one tank and an independent flange or fitting connecting it to the gas recirculation line exhaust.
  • said exchangers include a inlet tank and outlet tank, said reservoirs being respectively coupled to the conduits inlet and outlet of the recirculation line by respective independent fittings.
  • the diameter of the inlet duct is generally less than the diameter of the carcass and that of the network of exchanger tubes; to ensure the routing of exhaust gases from the duct input to the tube network, so there is between them said inlet tank whose section transverse increases gradually.
  • the diameter of the outlet pipe is less than the diameter of the carcass and that of the network of exchanger tubes; analogously, to ensure the delivery of exhaust gases now cooled from the tube network to the duct outlet, there is therefore between them said reservoir of outlet whose cross section decreases gradually.
  • fittings There are various types of fittings and we know by example of fittings with a configuration concave or outwardly shaped as well as fittings with a convex configuration or inwardly shaped.
  • the tanks are also generally manufactured by stamping, while the fittings are usually manufactured by machining, but also possibly by stamping, sintering, hydroforming or microfusion.
  • the gas heat exchanger of this invention aims to remedy the drawbacks of fittings and tanks known in the art, in offering a series of advantages which will be described in the following.
  • the gas heat exchanger object of this invention is characterized in that the tank and the fitting are integrated in one piece manufactured by stamping.
  • the production process consists of a process classic stamping in several stages, starting from a rolled material on reel using presses commercial.
  • Stamping allows you to define complex shapes, especially parabolic, hyperbolic, etc. of the connection surface of the tank and the fitting, this which thus improves the passage of the gas flow.
  • the exchanger includes a part incorporating an inlet tank, the corresponding fitting is located in the entrance of the exchanger, and a part incorporating a reservoir of outlet whose corresponding fitting is arranged in the exchanger outlet.
  • the heat exchanger heat for gas consists of a carcass 1 of circular section containing a network of tubes 2 parallel, intended for the passage of gases to be cooled. AT inside the carcass 1 and outside the tubes 2 circulates a cooling fluid, ranging from a input 3 to output 4.
  • the gases to be cooled enter the exchanger from a supply line 5 and through a tank input 6 which gradually widens.
  • the inlet tank 6 is coupled to the conduit supply 5 by a connector 7, said tank inlet 6 and said connector 7 being integrated in a only piece made by stamping.
  • the outlet tank 9 is coupled to the outlet conduit 8 through a connector 10, said outlet tank 9 and said connector 10 being integrated in one piece made by stamping.
  • stamping to define complex shapes it is possible to design different configurations of the connection surface of the tank 6, 9 and the connection 7, 10, thereby improving the flow passage gaseous.
  • connection surface of fitting 7 and the tank 6 has a concave or conformed configuration towards outside.
  • connection surface of fitting 7 and the tank 6 has a convex or shaped configuration towards inside.

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)
  • Manufacturing & Machinery (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
EP03012023A 2002-05-30 2003-05-28 Gaswärmetauscher Withdrawn EP1367252A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201319A ES2199060B1 (es) 2002-05-30 2002-05-30 Intercambiador de calor para gases.
ES200201319 2002-05-30

Publications (2)

Publication Number Publication Date
EP1367252A2 true EP1367252A2 (de) 2003-12-03
EP1367252A3 EP1367252A3 (de) 2006-05-24

Family

ID=29414916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03012023A Withdrawn EP1367252A3 (de) 2002-05-30 2003-05-28 Gaswärmetauscher

Country Status (2)

Country Link
EP (1) EP1367252A3 (de)
ES (1) ES2199060B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925899A3 (de) * 2006-11-17 2010-11-17 Valeo Termico S.A. Gaswärmetauscher, insbesondere für die Abgase eines Motors
EP3088834A1 (de) * 2015-03-26 2016-11-02 Mahle International GmbH Wärmeübertrager

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628079A (en) * 1950-06-22 1953-02-10 Ford Motor Co Radiator construction
US3223154A (en) * 1962-01-25 1965-12-14 Young Radiator Co Shell-and-tube heat-exchanger
US3452814A (en) * 1967-02-24 1969-07-01 Gen Electric Bell-end condenser tubes
US4436147A (en) * 1978-11-30 1984-03-13 Sharon Manufacturing Company Dual fluid heat exchanger
FR2785980B1 (fr) * 1998-11-16 2001-11-30 Valeo Thermique Moteur Sa Echangeur de chaleur a faisceau de tubes contenu dans un boitier cylindrique
JP2000213424A (ja) * 1999-01-20 2000-08-02 Hino Motors Ltd Ｅｇｒク―ラ
JP4247942B2 (ja) * 1999-07-14 2009-04-02 臼井国際産業株式会社 Ｅｇｒガス冷却装置
JP4253975B2 (ja) * 1999-12-24 2009-04-15 トヨタ自動車株式会社 Ｅｇｒガス冷却装置
FR2810725B1 (fr) * 2000-06-26 2003-04-18 Ecia Equip Composants Ind Auto Echangeur de chaleur, notamment pour ligne d'echappement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925899A3 (de) * 2006-11-17 2010-11-17 Valeo Termico S.A. Gaswärmetauscher, insbesondere für die Abgase eines Motors
EP3088834A1 (de) * 2015-03-26 2016-11-02 Mahle International GmbH Wärmeübertrager

Also Published As

Publication number Publication date
ES2199060A1 (es) 2004-02-01
ES2199060B1 (es) 2004-11-16
EP1367252A3 (de) 2006-05-24

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