EP0265725A1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0265725A1
EP0265725A1 EP87114628A EP87114628A EP0265725A1 EP 0265725 A1 EP0265725 A1 EP 0265725A1 EP 87114628 A EP87114628 A EP 87114628A EP 87114628 A EP87114628 A EP 87114628A EP 0265725 A1 EP0265725 A1 EP 0265725A1
Authority
EP
European Patent Office
Prior art keywords
profile
heat exchanger
tube
profile tube
exchanger according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87114628A
Other languages
German (de)
English (en)
Other versions
EP0265725B1 (fr
Inventor
Klaus Hagemeister
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.)
MTU Aero Engines GmbH
Original Assignee
MTU Motoren und Turbinen Union Muenchen 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 MTU Motoren und Turbinen Union Muenchen GmbH filed Critical MTU Motoren und Turbinen Union Muenchen GmbH
Publication of EP0265725A1 publication Critical patent/EP0265725A1/fr
Application granted granted Critical
Publication of EP0265725B1 publication Critical patent/EP0265725B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28D7/06—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 having a single U-bend
    • 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
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
    • Y10S165/471—Plural parallel conduits joined by manifold
    • Y10S165/472—U-shaped conduits connected to side-by-side manifolds

Definitions

  • the invention relates to a heat exchanger according to the preamble of patent claim 1.
  • heat exchangers are manufactured with central collecting containers or pipes in such a way that the lancet-shaped matrix profile pipes are inserted into an opening in the wall of the collecting container or pipe and then connected cohesively, for example by soldering. so that a fluidic passage from the collecting container to the interior of the profile tubes is created.
  • the passage openings in the collecting container wall can be formed by drilling or eroding, before threading the profile tubes, which is a complex perforation procedure.
  • the individual assembly of the profile tubes, in particular the threading is comparatively cumbersome, specifically because there is a tight play (movable fit) between the profile tube and the through opening in the wall. Tight tolerances of the hole and profile tube must be observed with regard to perfect soldering or another connection.
  • a heat exchanger concept known from DE-OS 32 42 842 provides that blocks are attached to the matrix profile tubes in the area of at least one profile tube end, the the profile tube enclose at the end that the matrix profile tubes are arranged close together in the area of their blocks, so that the blocks form a wall of the collecting container or pipe, and that the connection points of the blocks are sealed fluid-tight.
  • the blocks are to be applied to the profile tube ends by metal sintering, powdered sintered material being arranged in a shape approximating the desired contour of the block around the respective connection-side profile tube end and sintered gas-tight.
  • the outer contact surfaces of the blocks can be machined with dimensional accuracy before the matrix profile tubes are arranged. Cold forging, embossing or profile grinding can also be considered as machining processes.
  • the profile tube base geometries can be essentially rhombic or hexagonal or honeycomb-shaped.
  • the present known case enforces a comparatively complicated and high-precision profile tube foot production. Furthermore, the entire matrix connection area (heat exchanger base) must also be assembled in a relatively complicated manner from a relatively large number of blocks which are extremely precisely matched to one another. Such a type of heat exchanger base or container structure assembled from very small particles has disadvantages with regard to the required container or base structure strength.
  • the matrix profile tubes with their ends containing an elongated oval profile cross section, are to be given between layers that are joined together in layers if annular container wall elements are tightly integrated in a fluid-tight manner; in other words, the wall elements in the region of their mutual joining surfaces each have semi-elliptically pre-shaped mutual cutouts for the elongated oval matrix profile tube ends.
  • This known concept also requires extremely precise machining of the wall elements in question; Despite the most precise machining, there is practically no bridging of differences in shape and manufacturing tolerance, particularly in the areas of the front and rear profile ends on the connection side; So there can be locally different profile tube crushing, z. B.
  • matrix profile tube fields and thus correspondingly assigned fields of the oval or elliptical recesses are formed between the wall elements; this in the sense that the matrix profile tubes in question intermesh with one another in a spatially interleaved manner at uniform mutual distances within the framework of a flow of hot gas which is as optimal as possible and with the necessary hot gas blocking.
  • the invention has for its object to eliminate the disadvantages presented to known; According to the task, a collecting or distributor tube plate which can be produced with relatively little effort is to be created, which, with optimum strength at the same time, creates perfect conditions for a fluid-tightly fixed matrix profile connection.
  • the respective profile tubes of the matrix can be shaped into a square or rectangular shape on the foot side before being inserted or inserted into the relevant floor structure of a distributor or collector tube; this can e.g. B. done rationally on rotary hammers, depending on the degree of deformation mecanicdorne can be used.
  • the components can be "interlocked" with one another during assembly and fixed in a predetermined position; Rectangular or square pockets can be provided in the relevant collector pipe or distributor pipe or the wall elements forming the heat exchanger base in order to integrate the relevant profile pipe foot ends in a positive and fixed manner therein.
  • the floor structures or collecting or distributor pipes in the matrix connection area can be provided with circumferential slots, into which the ends of the profiled pipe feet can be pushed in from the outside, z. B. individually, one after the other, one after the other.
  • the invention also creates essential design advantages with regard to the so-called "modular" construction concept, in that it is possible to create preassembled individual assemblies in a comparatively simple manner (elements, connecting elements, profile tube foot ends and tube profiles), which can be assembled to form a tube or floor structure with assemblies of equal priority and preassembled .
  • Individual modules can e.g. B. according to the invention also easily by preassembled along its narrow end faces or integrally, z. B. joined by soldering Profilerohrfußenden along with associated Matrixprofilrohrstrang, which would then be inserted into the bottom of the correspondingly provided and adapted slots of the tube or floor or cohesively firmly integrated therein.
  • the invention is based on a heat exchanger according to FIG. 1, which consists of two compressed air ducts 1, 2 arranged essentially parallel to one another, which here, for. B. are formed as separate manifolds or manifolds.
  • the compressed air routing is in accordance with the darkened contour gen 1, 2 formed closed at the rear end.
  • the profile tube matrix 3, which projects laterally from the two compressed air ducts 1, 2 transversely against the hot gas flow H and consists of straight profile tube strands 4, 5 that run parallel to one another and merge into a common arcuate profile tube deflection section 6.
  • compressed air to be heated is fed into the upper compressed air duct 1 (D 1), then flows through the straight profiled pipe strands 4 (D 2), whereupon it is deflected via the deflection section 6 (D 3), and then flows through the straight profiled pipe strands 5 in the opposite direction of flow (D 3), from which it flows through the lower compressed air duct 2 in the heated state (D5) to a suitable consumer, for. B. the combustion chamber of a gas turbine engine to be supplied.
  • the invention would also be practical for a heat exchanger in which the aforementioned compressed air ducts are integrated in a common header pipe or distributor pipe, from which the matrix projects in a U-shape on both sides.
  • Fig. 2 embodies the conventional arrangement of a profile tube field recorded here greatly enlarged, z. B. as a section from the straight-legged profile tube strands 4 according to FIG. 1.
  • the respective matrix profile tubes of three rows of profile tubes extending in the longitudinal direction of the tube guide - in sequence, from top to bottom - are denoted by 41, 42 and 43.
  • the matrix profile pipes 41, 42, 43 are arranged at equal distances from each other; From Fig. 2 it can also be seen that the matrix profile tubes, for. B. 42, with their respective hot gas inflow and outflow ends in the end-side spaces left between adjacent remaining profile tubes, e.g. B. 41, 43 intervene.
  • the characteristic, highly compact array of matrix tube profiles is created for heat exchangers in the sense of FIG. 1.
  • the arrangement of the profile tube field according to FIG. 2 could, for. B. also by using the same inclination angles ⁇ with respect to the relevant major axes A (or profile tube longitudinal center planes) of the profile tubes, inclined faces M, which is passed through the profile centers designated M1, M2 and M3, respectively.
  • the profile tubes 4 1, 4 2 and 4 3 in FIG. 2 are employed at a right angle R with respect to a central collecting or distribution tube transverse plane E, the angle of incidence ⁇ of the inclined plane M to the plane E being calculated from the angle difference R- ⁇ .
  • the matrix profile tubes 41, 42 and 43 have an elongated oval, aerodynamically optimized profile cross-section, each profile tube being separated from one another by a central crosspiece 7, the compressed air, e.g. B. D2 (Fig. 1) leading inner channels 8, 9.
  • each profile tube, for. B. 41 be equipped with a rectangular profile symmetrically assigned profile tube foot end 10; in other words, the relevant profile tube foot end 10 has a foot longitudinal center plane L lying in the plane of the major axis A (FIG. 2).
  • FIG. 4 embodied an advantageous variant of the invention, in which two elements 11, 12 of a header or distributor pipe 1 or 2 (FIG. 1) forming the matrix connection area (FIG. 1) between the respective mutual ones , here extending in the middle of the profile tube foot Connecting and joining surfaces 13, 14 include recesses 15, which have a rectangular shape adapted for receiving and enclosing the foot end 10 concerned.
  • the respective profile tube foot end 10 is deformed concentrically rotated at a respective inclination angle ⁇ relative to the associated profile tube section 4 1 which is hot-gas-flowed during operation.
  • this torsional deformation can be such that the respective major axis A or the longitudinal section plane of the profile tube cuts the associated foot end 10 diagonally.
  • the respective profile tube foot ends 10 extend longitudinally in the oblique division planes M, which are already defined in more detail in FIG. 2, while the associated profile tubes, for example, which are deformed relative to the respective angle of inclination ⁇ (see also FIG. B. 41, with their major axis A at a right angle R (Fig.
  • FIG. 5 It allows the embodiment of FIG. 5, a manifold or manifold in various ways in a number in parallel to the division plane M in z. B. to divide annular elements. A further variant of the invention results from this in FIG. 7.
  • two elements 21, 22 are each formed so that they enclose the rectangular profile tube foot ends 10 tightly like pliers along the mutual joining surfaces lying in the inclined parting planes M with the corresponding square recesses; along the outer joining surfaces parallel to the parting planes M, e.g. B. 23, 24, the elements 21, 22 are smooth-walled.
  • two elements 21, 22 can each be independent, with the associated foot ends 10 and the associated flow tubes, e.g. B. 41 - Fig. 5 -, equipable assembly units.
  • FIG. 7 There are additional element divisions in FIG. 7 compared to FIG. 6, but in FIG. 7, compared to FIGS. 3 and 6, uninterrupted outer joining surfaces, e.g. B. 23, 24 provided, which in turn benefits the manufacturing process.
  • An intermediate product is thus formed, from which the complete heat exchanger base or heat exchanger can be assembled by adding the required number of identical elements, the joints of the completely preassembled assemblies lying on planar surfaces and their edges simple shapes, e.g. B. represent circles or ellipses.
  • the integral joining of the elements can be flat, e.g. B. by soldering or - along the opposite element edges - by laser or EB welding.
  • lip-like projections 25, 26 of the elements provide the mutual joining surfaces, and preferably in the foot-side region of these elements; Above the lip-like projections 25, 26, upwardly open joints 27 can remain between the elements 21, 22. The welding can then take place along the lip-like projections 25, 26; the projections 25, 26 can be worked off later for possible repair purposes in order to be able to loosen the bandage at this point.
  • FIG. 9 shows a modification of FIG. 8 in such a way that two adjacent elements 21, 22 are joined together and centered by means of webs 28 which engage under one another on the inside of the manifold or distributor pipe.
  • a further embodiment of the invention (Fig. 10) is characterized in that an element 29 is formed along both-sided joining surfaces 30, 31 with outwardly open, rectangular recesses 32 for the respective profile tube foot ends 10, each of which has an open foot end side of strip-shaped connecting elements 33, 34 is covered along the joining surfaces on both ends, whereby the element 29, the connecting elements 33, 34 and the foot ends 10 together with the associated profiled tube sections can each form an independent assembly unit.
  • Each assembly unit can then be joined with a relevant assembly unit in a material-homogeneous manner.
  • a suitable soldering, welding or diffusion connection method can be selected for the mutual connection of the respectively pre-assembled assembly units as well as for the individual component connection of each independent assembly unit.
  • the spaces marked with Z in Fig. 10 can by additional material during soldering or z. B. be closed by one-sided sealing welding.
  • FIG. 11 mainly differs from FIG. 5 in that the profile tube foot end 10 in question is made narrower and longer; otherwise, the same geometric aspects and nomenclatures apply as in Fig. 5.
  • a header or manifold bottom section according to Fig. 12 it follows that the profile tube foot ends 10 each extending longitudinally in the inclined parting planes M each have an overall length L, which mutual profile center distance Ma in the relevant division planes M corresponds.
  • two elements 35, 36 together with anchored profile tube foot ends 10 is together with associated tube profiles, for. B. 41 - Fig. 11, form independent preassembled units, which would be assembled in a manner described above with relevant units or modularly connected.
  • Fig. 13 is a modified compared to Fig. 12 header or manifold bottom variant, in which the elements 37, 38 are integral parts of the header or manifold and leaving mutual parallel recesses or slots 39 for receiving and later solid and fluid-tight partial enclosure of the with their narrow end faces stacked profile tube foot ends 10 ⁇ together with profiles, z. B. 41 - Fig. 11, are formed.
  • the profile tube foot ends 10 ⁇ extend longitudinally in the inclined parting planes M, the end or joining surfaces adjoining the longitudinal sides of the profile tube foot ends 10 ⁇ again running parallel to the parting planes M.
  • the profile tube foot ends 10 ⁇ together with profiles 4 can be inserted individually into the slots 39 and cohesively after reaching the operating end position, for. B. by soldering, fluid-tight integrated into the slots 38.
  • profile tube bracket and foot ends of an assembly unit in one device to position together and to connect the touching narrow sides of the rectangular profile tube foot ends to each other, e.g. B. by welding or soldering.
  • the profile tube groups created in this way can also be subjected to a calibration in which the common width of the foot profiles is exactly adapted to the slot width of the central tube (pressing, grinding or the like).
  • These profile tube assemblies are then inserted with their foot brackets into the slots 39 of the central tube and firmly and tightly connected to the central tube base by means of integral methods (soldering, welding).
  • the individual steps in this assembly sequence can be automated and are therefore suitable for efficient mass production.
  • a vibration excitation of the central tube as well as the profile tube assembly can be used as a further assembly aid.
  • the position scatter of an assembly robot can be masked by the kinetic blurring of the flanks to be paired.
  • the vibration excitation also reduces the friction reactions when the components are pushed together.
  • the end cross sections of the profile tubes may be fitted, if necessary, in order to facilitate introduction during assembly.
  • This area of the cross sections narrowed by the crowning should, however, be removed again after completion of the heat exchanger. To the affected The length of the tube end should therefore be sunk deeper into the tube sheet. This area then protrudes freely into the interior of the central pipe or collecting or distribution pipe and can be worked off later.
  • the elements forming the central tubes or collecting or distributor tubes can be closed rings over their circumference, but can also be ring sections, after their joining together with the profile tube matrix, a shell-like partial area of the tube jacket is created. These jacket shells are later connected to each other by longitudinal seams (e.g. by welding) in order to create the closed pipe. Such a procedure allows simple testing and possibly reworking of the joints between the profile pipes and the jacket sections of the header or distributor pipe.
  • the invention can also be used advantageously in a profile tube matrix through which hot gas flows obliquely; this would e.g. Example, mean that at a substantially concentric angular rotation ⁇ according to FIG. 11, the profile tube foot ends 10 ⁇ could each be arranged longitudinally in planes, which are employed, for example, at a right angle to the profile tube longitudinal center plane E: B. 41, could then lie with their respective major axes A in planes whose angle of inclination to the longitudinal section plane E of the profile tube results from the mutual inclination twist angle ⁇ .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP87114628A 1986-10-29 1987-10-07 Echangeur de chaleur Expired - Lifetime EP0265725B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3636762A DE3636762C1 (de) 1986-10-29 1986-10-29 Waermetauscher
DE3636762 1986-10-29

Publications (2)

Publication Number Publication Date
EP0265725A1 true EP0265725A1 (fr) 1988-05-04
EP0265725B1 EP0265725B1 (fr) 1990-12-27

Family

ID=6312712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114628A Expired - Lifetime EP0265725B1 (fr) 1986-10-29 1987-10-07 Echangeur de chaleur

Country Status (4)

Country Link
US (1) US4815535A (fr)
EP (1) EP0265725B1 (fr)
JP (1) JPH0731031B2 (fr)
DE (1) DE3636762C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234006A1 (de) * 1992-10-09 1994-04-14 Mtu Muenchen Gmbh Profilrohr für Wärmetauscher
US5313546A (en) * 1991-11-29 1994-05-17 Sirti, S.P.A. Hermetically sealed joint cover for fibre optic cables
DE102010025587A1 (de) * 2010-06-29 2011-12-29 Mtu Aero Engines Gmbh Gasturbine mit Profilwärmetauscher

Families Citing this family (24)

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Publication number Priority date Publication date Assignee Title
DE3914774A1 (de) * 1989-05-05 1990-11-08 Mtu Muenchen Gmbh Waermetauscher
DE3914773C2 (de) * 1989-05-05 1994-03-03 Mtu Muenchen Gmbh Wärmetauscher mit mindestens zwei Sammelrohren
US5048602A (en) * 1989-05-22 1991-09-17 Showa Aluminum Kabushiki Kaisha Heat exchangers
JP2598584Y2 (ja) * 1991-09-12 1999-08-16 矢崎総業株式会社 組立式シールドコネクタ
JP2570350Y2 (ja) * 1991-09-13 1998-05-06 矢崎総業株式会社 シールドコネクタ
GB9211413D0 (en) * 1992-05-29 1992-07-15 Cesaroni Anthony Joseph Panel heat exchanger formed from tubes and sheets
JP2772324B2 (ja) * 1992-11-11 1998-07-02 矢崎総業株式会社 シールドコネクタ
JPH06267615A (ja) * 1993-03-12 1994-09-22 Yazaki Corp 電磁シールドコネクタ
US5460544A (en) * 1993-05-26 1995-10-24 Yazaki Corporation Electro-magnetically shielded connector
DE19540683A1 (de) * 1995-11-01 1997-05-07 Behr Gmbh & Co Wärmeüberträger zum Kühlen von Abgas
DE19722097A1 (de) * 1997-05-27 1998-12-03 Behr Gmbh & Co Wärmeübertrager sowie Wärmeübertrageranordnung für ein Kraftfahrzeug
DE10156611A1 (de) * 2001-10-26 2003-05-08 Behr Gmbh & Co Rohrboden für Abgaswärmeübertrager
US7003879B2 (en) * 2002-06-28 2006-02-28 Westinghouse Air Brake Technologies Corporation Staggered rows in a CT or serpentine fin core with a round tube to header joint
AU2003250891A1 (en) * 2002-07-05 2004-01-23 Behr Gmbh And Co. Kg Heat exchanger in particular an evaporator for a vehicle air-conditioning unit
CN1228591C (zh) * 2002-07-12 2005-11-23 株式会社电装 用于冷却空气的制冷剂循环***
DE10333577A1 (de) * 2003-07-24 2005-02-24 Bayer Technology Services Gmbh Verfahren und Vorrichtung zur Entfernung von flüchtigen Substanzen aus hochviskosen Medien
CA2538761A1 (fr) * 2005-03-08 2006-09-08 Anthony Joseph Cesaroni Methode de scellement de tubes d'echangeur thermique
TWI404903B (zh) * 2007-03-09 2013-08-11 Sulzer Chemtech Ag 用於流體媒介物熱交換及混合處理之設備
WO2009089460A2 (fr) * 2008-01-09 2009-07-16 International Mezzo Technologies, Inc. Échangeur thermique à micro-tubes ondulés
US8177932B2 (en) * 2009-02-27 2012-05-15 International Mezzo Technologies, Inc. Method for manufacturing a micro tube heat exchanger
FR2956949B1 (fr) 2010-03-04 2013-04-19 Pelle Equipements Dispositif de cuisson de produits alimentaires a base de pate et filet de cuisson.
MX356024B (es) * 2012-09-14 2018-05-09 Revent Int Ab Horno de aire caliente.
US10823515B2 (en) * 2017-02-07 2020-11-03 Caterpillar Inc. Tube-to-header slip joint for air-to-air aftercooler
US11499717B2 (en) * 2017-08-07 2022-11-15 Zhejiang Liju Boiler Co., Ltd. Combustion chamber

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US3897821A (en) * 1973-08-03 1975-08-05 Barry Wehmiller Co Heat transfer coil
US4206806A (en) * 1976-03-15 1980-06-10 Akira Togashi Heat-conducting oval pipes in heat exchangers
DE2907810A1 (de) * 1979-02-28 1980-09-18 Motoren Turbinen Union Waermetauscher

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Publication number Priority date Publication date Assignee Title
US3627039A (en) * 1967-02-17 1971-12-14 Daimler Benz Ag Heat exchanger especially for nonstationary gas turbines
US3897821A (en) * 1973-08-03 1975-08-05 Barry Wehmiller Co Heat transfer coil
US4206806A (en) * 1976-03-15 1980-06-10 Akira Togashi Heat-conducting oval pipes in heat exchangers
DE2907810A1 (de) * 1979-02-28 1980-09-18 Motoren Turbinen Union Waermetauscher

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Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313546A (en) * 1991-11-29 1994-05-17 Sirti, S.P.A. Hermetically sealed joint cover for fibre optic cables
DE4234006A1 (de) * 1992-10-09 1994-04-14 Mtu Muenchen Gmbh Profilrohr für Wärmetauscher
FR2696822A1 (fr) * 1992-10-09 1994-04-15 Mtu Muenchen Gmbh Matrice à tubes profilés pour échangeur de chaleur.
DE102010025587A1 (de) * 2010-06-29 2011-12-29 Mtu Aero Engines Gmbh Gasturbine mit Profilwärmetauscher

Also Published As

Publication number Publication date
US4815535A (en) 1989-03-28
DE3636762C1 (de) 1988-03-03
JPS63127083A (ja) 1988-05-30
JPH0731031B2 (ja) 1995-04-10
EP0265725B1 (fr) 1990-12-27

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