US2656159A - Laminated heat exchanger - Google Patents

Laminated heat exchanger Download PDF

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Publication number
US2656159A
US2656159A US40546A US4054648A US2656159A US 2656159 A US2656159 A US 2656159A US 40546 A US40546 A US 40546A US 4054648 A US4054648 A US 4054648A US 2656159 A US2656159 A US 2656159A
Authority
US
United States
Prior art keywords
plates
passages
apertures
slots
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US40546A
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English (en)
Inventor
Holm Sven
William E Hammond
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.)
Alstom Power Inc
Original Assignee
Air Preheater Co Inc
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
Priority to NL80122D priority Critical patent/NL80122C/xx
Priority to NL666615752A priority patent/NL147760B/xx
Application filed by Air Preheater Co Inc filed Critical Air Preheater Co Inc
Priority to US40546A priority patent/US2656159A/en
Priority to GB19013/49A priority patent/GB691967A/en
Priority to FR991096D priority patent/FR991096A/fr
Application granted granted Critical
Publication of US2656159A publication Critical patent/US2656159A/en
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
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • 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
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/356—Plural plates forming a stack providing flow passages therein
    • Y10S165/36—Stacked plates having plurality of perforations

Definitions

  • the present invention relates to improvements in heat exchangers of the plate type particularly adapted for heat exchange between two confined v fluids.
  • the invention contemplates the construction of a plate type heat exchanger by stacking blanks that are formed With a plurality of variously arranged perforations in the form of rows of apertures or slots co-extensive with the rows, the assembly of the blanks aligning the perforations to form nuid passages and portions of certain plates forming extended surfaces or ns in the passages created by the alignment of apertures and/or slots in the plates.
  • Figure l is a perspective view of an envelope type heat exchanger embodying the present invention, parts being broken away to illustrate details of construction.
  • Figures 2 to 5, 5A, 6 and 6A are perspective views ⁇ illustrating perforated plates of various forms which may be assembled in combinations to form the core of the heat exchanger illustrated in Figure l;
  • Figure '7 is a fragmentary perspective view of a core made up ci alternate A plates having rows of apertures and intermediate B plates having slots as shown in Figures 2 and 3, respectively;
  • Figure 7A is an exploded perspective view corresponding to Figure 7.
  • Figure 8 is an end elevational view, partly sectioned, and Figure 9 is a horizontal sectional View on the correspondingly designated section line in Figure 7.
  • Figure 10 is a view similar to Figure 9 but having the pin-fins in the core disposed in staggered relation.
  • Figure 11 also is a sectional view similar to Figure 9 but wherein all of the component plates of the core are of the A type having rows of apertures as illustrated in Figure 2, thereby providing continuous ns extending through the passages in the direction of uid ow.
  • Figure 12 is a sectional view similar to Figure 11 but having the continuous longitudinal uns interrupted at intervals by periodic insertion of slotted plates of the B type shown in Figure 3 between groups of row apertured plates of the A type shown in Figure 2.
  • Figure 13 also is a sectional view of a portion of a core made up of row apertured "A plates of the type shown in Figure 2 used in alternation with plates of the C type shown in Figure 4 which have slots as well as rows of apertures so that some passages have a plurality of pin-ns therein while other contiguous passages have continuous longitudinal fins extending through the passages in the direction of fluid now,
  • Figure le is a sectional view showing a core similar to that in Figure 13 but having slotted B plates of the form shown in Figure 3 interposed at intervals to interrupt the continuity of the longitudinal fins.
  • Figure 15 is a fragmentary perspective view of a core utilizing in alternation A and D plates of the forms shown in Figures 2 and 5 so arranged as to provide for cross ow of the two fluids.
  • Figure 15A is a view similar to Figure 15 em ⁇ ploying a variant of the D plates with the A plates.
  • Figure 16 is a partial sectional View of a core of the type shown in Figure l5.
  • the heat exchanger illustrated in Figure 1 is essentially of the envelope type with alternating passages for two fluids in heat exchange rela tionship and has a core lil consisting of a plurality of stacked blanks or plates H, l2 formed with perforations that create passage-s for counterilow of two fluids in heat exchange relationship.
  • the fluid to be heated passes from a header i3 through the manifold lingers lli to alternate passages in the heat exchanger c ore l!) and is discharged in like manner from the outlet ends of the passages through similar iingers to a collecting header l5.
  • the heating fluid is supplied through a header i6 to flow through the manifold iingers l'l into the set of intermediate passages and is taken oli through other manifold ngers which communicate with the discharge header I8,
  • the plate l i preferably of thin, highly heat-conductive metal or other material, is formed with a plurality of perforations which, as shown, are arranged in alignment transversely of the plate to form a series of transverse rows 2 of apertures 2l.
  • Other plates l2 shown in Figure 3 known also as B plates have transversely extending slots 22 co-extensive with the transverse rows 2i! of apertures 2
  • the apertures 2l in alternation with B plates I2 the apertures 2l form continuations of the slots 22 to create continuous fluid passages extending through the core (Fig. 8).
  • and ligament-nus 2li may be .04() of an inch wide or greater'andvsay .25 of an inch high.
  • pinrflns iig .xqllgr in the heat exchange core iii" intervals corresponding to the thickness ofl the B plates and themselves are of a depth gr thiclgness corresponding to that of the A'plates Vfrom which they are formed or in the nature of :()fiil inch.
  • rhis may be brought about ,also as As hpwn in Figure l() by employing plates ii'fhlh vhave a vwider margin 2l at one side than 7at the other v and reversing alternate A plates to Yc lispvose the wider margin alternately at the right or nleft hand side of the core.
  • a plates having rows of apertures'yi are combined with C' plates 3i (Fig. 4) of a type having alternateslots -2'2 and rows of apertures 2i.
  • C' plates 3i Fig. 4
  • the set of intermediate passages will be provided with continuous iins formed' by the ligaments 33 between the openings ,35 abutting with the alined ligaments A2li of the A plates as shown in Fig. 13.
  • Insertion at intervals in the corehof Bfplates serves .to interrupt the continuity of the ns (Fig. lll). 'Y
  • the rows of apertures 2l in a set of A plates combine with the slots l22 in the sets of B or C plates to create passages extending through the-heatv exchange core, '-'the passages being separated by walls made up of the Aligaments 25, between rows 20 of apertures or the ligaments 2t -between slots 2-2 while tu@ ligaments" 24 between the .apertures '.21 frm spaced pin-fins when A plates formed only with apertures are stacked alternately with B plates I2 formed only with slots, while a C plate formed with both types of openings when combined with A plates formed only with rows of apertures 2l creates spaced pin-iins in one set of passages and longitudinally extending ns in .the adjacent passages.
  • Figl' 1 a ⁇ numb/eroi slotted fB plates (Fig. 3) are stacked upon and below the heat exchange core so that the fingers I4, I'I of headers I3, I5, I6, I8 may be inserted in the tes'l2v ateach end of core I0.
  • n ross-.flow is desired, instead of the ""plates'of'ligf, plates 6i! of the form shown ⁇ in Fig. Y5v are Aemployed with the A plates. It will be noted that in the D plates 68 alternate sl'ots'tl are longer than the other slots 62. The slots El are wider than the rows of apertures 2l Vtl 1e"A- plates and thmD platesthemselves are' v p'roportion'ately wider.
  • Figure 415A shows an arrangement similar to that of Figure l5 but the* plates d6 (called D' plates) have rows of apertures E? instead of short slots 6 2 ofthe D' plates. -Whenassembled with A plates continuous ns are formedin one set of passages.
  • a heat exchanger comprising; a, core made upof stacked plates formed with spaced parallel rows of apertures separated at intervals by plates formed with Vsimilarly spaced', parallel slots with the apertures and slots alined to form parts of parallel passages and the ligaments between cony wells or recesses formed by the slots 22 in the tiguous apertures in said rows'constituting' ns .that occur inthe passages at intervals in the direction of flow Corresponding .to the thickness'of said slottedplates; a plurality of plates disposed at each end of the core formed with slotsspaced to correspond with the spacing of said passages and .constituting ,extensions thereof; a( pair of inanifolds disposed at opposite ends of the core having ringer-like conduits extending into alternate slots .in 'said end, plates .for admitting'fluid vto andreceiving it from the passages of said core; and othersimilar manifolds having fingers connecting with .
  • a :heat exchanger comprising: a core made up of stacked plates formedwith spaced parallel rows of apertures with the apertures of contiguous .plates alined to form parts of parallel passages and the ligaments between contiguous aperturesin saidrows constituting ns in the passages in the direction of flow; a plurality of plates disposed at each end of the core formed with slots spaced to correspond with the spacing of said passages and constituting extensions thereof; a pair of manifolds disposed at opposite ends of the core having linger-like conduits extending into alternate slots in said end, plates for admitting iiuid to and receiving it from the passages of said core; and other similar manifolds having ngers connecting with the intermediate slots in said end plates for circulating another iiuid through intermediate passages.
  • a core for a heat exchanger comprising a plurality of stacked plates all of good heat transferring material, each formed with a multiplicity of non-circular, elongate spaced perforations arranged in substantially uniform patterns to occupy corresponding areas on the various plates, said perforations aligning from plate to plate to form parts of parallel iiuid passages through the core; sections of the plate members which lie between perforations forming ligaments adapted to abut to constitute iins extending through said passages in the direction of fluid flow; plates having parallel rows of slots of a length corresponding to said rows of perforations so that pin-like fins occur in the passages at intervals in the direction of ilow corresponding to the thickness of the slotted plates, said perforations being 1ocated at diiferent distances from the marginal edges of the plates so that fins formed by ligaments between perforations are offset transversely of said passageways.
  • a core for a heat exchanger comprising: a plurality of stacked plates of heat exchanger material formed with a multiplicity of apertures arranged in parallel rows; other plates disposed among said rst plates and formed with slots :3o-extensive with and spaced at intervals corresponding to the spacing of the rows of apertures in said first plates for alignment therewith, whereby the ligaments on the plates between said rows of apertures and said rows of slots constitute opposite walls of iiuid passages extending through the core, and the ligaments between the apertures in said rows constitute pin-like iin extensions from said walls into said passages; the initial aperture in each row of apertured plates being located at different distances from the marginal edges of the plates than the nal aperture, and

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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)
US40546A 1948-07-24 1948-07-24 Laminated heat exchanger Expired - Lifetime US2656159A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL80122D NL80122C (xx) 1948-07-24
NL666615752A NL147760B (nl) 1948-07-24 Werkwijze voor het bereiden van dispersies van polymere organische verbindingen.
US40546A US2656159A (en) 1948-07-24 1948-07-24 Laminated heat exchanger
GB19013/49A GB691967A (en) 1948-07-24 1949-07-19 Laminated heat exchanger
FR991096D FR991096A (fr) 1948-07-24 1949-07-22 échangeur de chaleur à plaques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40546A US2656159A (en) 1948-07-24 1948-07-24 Laminated heat exchanger

Publications (1)

Publication Number Publication Date
US2656159A true US2656159A (en) 1953-10-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
US40546A Expired - Lifetime US2656159A (en) 1948-07-24 1948-07-24 Laminated heat exchanger

Country Status (4)

Country Link
US (1) US2656159A (xx)
FR (1) FR991096A (xx)
GB (1) GB691967A (xx)
NL (2) NL147760B (xx)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435894A (en) * 1965-11-03 1969-04-01 Herbert F Maddocks Heat exchangers
FR2455721A1 (fr) * 1979-05-02 1980-11-28 Inst Francais Du Petrole Echangeur de chaleur compact
US4624305A (en) * 1981-02-25 1986-11-25 Institut Francais Du Petrole Heat exchanger with staggered perforated plates
US4934454A (en) * 1988-08-25 1990-06-19 Sundstrand Corporation Pressure sealed laminated heat exchanger
US5193611A (en) * 1989-05-04 1993-03-16 The Secretary Of State For Trade And Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Heat exchangers
US5212004A (en) * 1990-07-17 1993-05-18 Hoechst Aktiengesellschaft Ceramic board utilized for the construction of heat exchanger plates
US6167952B1 (en) 1998-03-03 2001-01-02 Hamilton Sundstrand Corporation Cooling apparatus and method of assembling same
WO2001069158A1 (en) * 2000-03-10 2001-09-20 Satcon Technology Corporation High performance cold plate for electronic cooling
US6968892B1 (en) * 1998-06-12 2005-11-29 Chart Heat Exchangers Limited Heat exchanger
US7017655B2 (en) 2003-12-18 2006-03-28 Modine Manufacturing Co. Forced fluid heat sink
US20060237166A1 (en) * 2005-04-22 2006-10-26 Otey Robert W High Efficiency Fluid Heat Exchanger and Method of Manufacture
US20070246204A1 (en) * 2006-04-21 2007-10-25 Foxconn Technology Co., Ltd. Liquid-cooling device
US20080164015A1 (en) * 2007-01-04 2008-07-10 Steven James Papapanu Contra-tapered tank design for cross-counterflow radiator
US20090323285A1 (en) * 2008-06-25 2009-12-31 Sony Corporation Heat transport device and electronic apparatus
US20100051250A1 (en) * 2004-04-14 2010-03-04 Panasonic Corporation Heat exchanger and its manufacturing method
NL2004187C2 (nl) * 2010-02-03 2011-08-04 Stichting Energie Warmtewisselaar.
CZ302986B6 (cs) * 2007-08-08 2012-02-08 Korado, A. S. Univerzální prepážka, zvlášte pro otopná telesa se spodním pripojením na otopný systém
US20120031349A1 (en) * 2002-02-14 2012-02-09 Battelle Memorial Institute Methods of Making Devices By Stacking Sheets and Processes of Conducting Unit Operations Using Such Devices
US20160131441A1 (en) * 2014-11-11 2016-05-12 Northrop Grumman Systems Corporation Alternating channel heat exchanger
JP2016085033A (ja) * 2016-02-15 2016-05-19 株式会社東芝 熱交換器
CN107062958A (zh) * 2017-02-14 2017-08-18 北京东方华氢科技有限公司 一种热交换器
US10809007B2 (en) 2017-11-17 2020-10-20 General Electric Company Contoured wall heat exchanger
US12006870B2 (en) 2020-12-10 2024-06-11 General Electric Company Heat exchanger for an aircraft

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334399A (en) * 1962-12-31 1967-08-08 Stewart Warner Corp Brazed laminated construction and method of fabrication thereof
NL7203268A (xx) * 1972-03-11 1973-09-13
FR2556823A1 (fr) * 1983-12-19 1985-06-21 Occr Inter G Accumulateur de chaleur a liquide caloporteur et masse metallique
GB2162630B (en) * 1984-08-03 1987-10-21 Atomic Energy Authority Uk A heat exchanger
FR2583864B1 (fr) * 1985-06-25 1989-04-07 Inst Francais Du Petrole Dispositif d'echange thermique du type echangeur a plaques perforees presentant une etancheite amelioree.
GB2211283B (en) * 1987-10-20 1992-04-15 Rolls Royce Plc Heat exchanger
US5016707A (en) * 1989-12-28 1991-05-21 Sundstrand Corporation Multi-pass crossflow jet impingement heat exchanger
EP0996847B1 (en) 1997-06-03 2003-02-19 Chart Heat Exchangers Limited Heat exchanger and/or fluid mixing means
WO2000034728A1 (en) * 1998-12-09 2000-06-15 Chart Heat Exchangers Limited Heat exchanger
GB2348481A (en) 1999-03-27 2000-10-04 Chart Marston Limited Heat exchanger and/or fluid mixing means with perforated plates
JP7015197B2 (ja) * 2018-03-26 2022-02-02 新光電気工業株式会社 ループ型ヒートパイプ及びその製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB188818516A (en) * 1888-12-18 1889-10-19 Improvements in apparatus for utilizing the waste heat of gas engines
US1508860A (en) * 1921-08-22 1924-09-16 Alexander T Stuart Radiator
US1734274A (en) * 1928-06-11 1929-11-05 Schubart Friedrich Heat-exchange apparatus
US1863586A (en) * 1928-09-10 1932-06-21 Ig Farbenindustrie Ag Heat exchanger
DE618450C (de) * 1928-11-29 1935-09-10 Treplin & Co Nachf Komm Ges Waermeaustauscher
US2179702A (en) * 1938-01-14 1939-11-14 Gen Motors Corp Radiator header
US2537276A (en) * 1947-12-22 1951-01-09 Little Inc A Heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB188818516A (en) * 1888-12-18 1889-10-19 Improvements in apparatus for utilizing the waste heat of gas engines
US1508860A (en) * 1921-08-22 1924-09-16 Alexander T Stuart Radiator
US1734274A (en) * 1928-06-11 1929-11-05 Schubart Friedrich Heat-exchange apparatus
US1863586A (en) * 1928-09-10 1932-06-21 Ig Farbenindustrie Ag Heat exchanger
DE618450C (de) * 1928-11-29 1935-09-10 Treplin & Co Nachf Komm Ges Waermeaustauscher
US2179702A (en) * 1938-01-14 1939-11-14 Gen Motors Corp Radiator header
US2537276A (en) * 1947-12-22 1951-01-09 Little Inc A Heat exchanger

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435894A (en) * 1965-11-03 1969-04-01 Herbert F Maddocks Heat exchangers
FR2455721A1 (fr) * 1979-05-02 1980-11-28 Inst Francais Du Petrole Echangeur de chaleur compact
US4624305A (en) * 1981-02-25 1986-11-25 Institut Francais Du Petrole Heat exchanger with staggered perforated plates
US4934454A (en) * 1988-08-25 1990-06-19 Sundstrand Corporation Pressure sealed laminated heat exchanger
US5193611A (en) * 1989-05-04 1993-03-16 The Secretary Of State For Trade And Industry In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Heat exchangers
US5212004A (en) * 1990-07-17 1993-05-18 Hoechst Aktiengesellschaft Ceramic board utilized for the construction of heat exchanger plates
US6167952B1 (en) 1998-03-03 2001-01-02 Hamilton Sundstrand Corporation Cooling apparatus and method of assembling same
US6968892B1 (en) * 1998-06-12 2005-11-29 Chart Heat Exchangers Limited Heat exchanger
WO2001069158A1 (en) * 2000-03-10 2001-09-20 Satcon Technology Corporation High performance cold plate for electronic cooling
US6634421B2 (en) 2000-03-10 2003-10-21 Satcon Technology Corporation High performance cold plate for electronic cooling
US20120031349A1 (en) * 2002-02-14 2012-02-09 Battelle Memorial Institute Methods of Making Devices By Stacking Sheets and Processes of Conducting Unit Operations Using Such Devices
US7017655B2 (en) 2003-12-18 2006-03-28 Modine Manufacturing Co. Forced fluid heat sink
US20100051250A1 (en) * 2004-04-14 2010-03-04 Panasonic Corporation Heat exchanger and its manufacturing method
US20100051249A1 (en) * 2004-04-14 2010-03-04 Panasonic Corporation Heat exchanger and its manufacturing method
US8230909B2 (en) * 2004-04-14 2012-07-31 Panasonic Corporation Heat exchanger and its manufacturing method
US20060237166A1 (en) * 2005-04-22 2006-10-26 Otey Robert W High Efficiency Fluid Heat Exchanger and Method of Manufacture
US20070246204A1 (en) * 2006-04-21 2007-10-25 Foxconn Technology Co., Ltd. Liquid-cooling device
US7584781B2 (en) * 2006-04-21 2009-09-08 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Liquid-cooling device
US20080164015A1 (en) * 2007-01-04 2008-07-10 Steven James Papapanu Contra-tapered tank design for cross-counterflow radiator
CZ302986B6 (cs) * 2007-08-08 2012-02-08 Korado, A. S. Univerzální prepážka, zvlášte pro otopná telesa se spodním pripojením na otopný systém
US20090323285A1 (en) * 2008-06-25 2009-12-31 Sony Corporation Heat transport device and electronic apparatus
WO2011096801A3 (en) * 2010-02-03 2012-01-12 Stichting Energieonderzoek Centrum Nederland Heat exchanger
NL2004187C2 (nl) * 2010-02-03 2011-08-04 Stichting Energie Warmtewisselaar.
US20160131441A1 (en) * 2014-11-11 2016-05-12 Northrop Grumman Systems Corporation Alternating channel heat exchanger
US9657999B2 (en) * 2014-11-11 2017-05-23 Northrop Grumman Systems Corporation Alternating channel heat exchanger
JP2016085033A (ja) * 2016-02-15 2016-05-19 株式会社東芝 熱交換器
CN107062958A (zh) * 2017-02-14 2017-08-18 北京东方华氢科技有限公司 一种热交换器
US10809007B2 (en) 2017-11-17 2020-10-20 General Electric Company Contoured wall heat exchanger
US12078426B2 (en) 2017-11-17 2024-09-03 General Electric Company Contoured wall heat exchanger
US12006870B2 (en) 2020-12-10 2024-06-11 General Electric Company Heat exchanger for an aircraft

Also Published As

Publication number Publication date
NL80122C (xx)
GB691967A (en) 1953-05-27
FR991096A (fr) 1951-10-01
NL147760B (nl)

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