US3517731A - Self-sealing fluid/fluid heat exchanger - Google Patents

Self-sealing fluid/fluid heat exchanger Download PDF

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Publication number
US3517731A
US3517731A US670356A US3517731DA US3517731A US 3517731 A US3517731 A US 3517731A US 670356 A US670356 A US 670356A US 3517731D A US3517731D A US 3517731DA US 3517731 A US3517731 A US 3517731A
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United States
Prior art keywords
heat exchanger
fluid
core
modules
sealant
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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
US670356A
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English (en)
Inventor
Edward A Rothman
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RTX Corp
Original Assignee
United Aircraft Corp
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Filing date
Publication date
Application filed by United Aircraft Corp filed Critical United Aircraft Corp
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Publication of US3517731A publication Critical patent/US3517731A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F28D9/0062—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 spaced plates with inserted elements

Definitions

  • the core of a plate-fin heat exchanger is made up of individual modules consisting of a pair of spaced plates sandwiching corrugated fins wherein sealant is disposed between each module so as to prevent leakage from one module to the other.
  • This invention relates to plate-fin heat exchangers and particularly to means for preventing leakage occurring from one passage to the other.
  • each passage into separate modules and assembling them to form the core so that each module is minutely spaced from each other.
  • a filler of sealant is 'disposed in the space so as to be above and below the fuel carrying passages.
  • the primary object of this invention is to provide in a plate-fin heat exchanger means for sealing between passages.
  • a still further object of this invention is to provide a method of constructing a plate-fin type of heat exchanger core having sealant sandwiched between passages.
  • a still further object of this invention is to provide a heat exchanger construction such that sealant is disposed between adjacent passages in order to prevent leakage from occurring from passage to passage wherein such construction is characterized as being smaller, lighter in weight, and simpler to manufacture as compared to heretofore known heat exchanger constructions.
  • FIG. 1 is a perspective view with a section broken away showing the details of the invention
  • FIG. 2 is a perspective view of two modules used to make up the core of the heat exchanger.
  • FIG. 3 is an enlarged view in section taken along lines 33 of FIG. 1.
  • the headers are fastened by suitable means, such as welding, to the core band 22 which is also welded to the face of core 20.
  • Corner headers 24 are also welded to the core band and serve to collect any escapement of fluid that might occur through or around the inner closure bar.
  • the module consists of a pair of part-ing sheets 26 and 28 sandwiching the corrugated fins 30 so as to define a plurality of channels serving to distribute the fluid in a suitable heat exchange relationship with the fluid in the adjacent passage.
  • a pair of closure bars 32 and 34 are spaced at the edge of the fins and define together with the adjoining parting sheets channel 36. All modules are similarly made. As can be seen from FIG. 1, channels 36 communicate with headers 24.
  • each module is made by brazing in any suitable manner the parting sheets to the fins and closure bars. These individual modules are then stacked such that each adjacent module is placed such that the fins are in a relationship to each other.
  • a fin spacer say less than .005 of an inch, is placed between the modules whereupon the core bands are welded into place along the faces of the core. After welding the core into place, the spacers are then removed and the gap is then filled with a suitable substantially impervious type sealant which serves to prevent the fluid from entering between the modules and leaking to the other modules from cracks or corrosion pits that may develop in the parting sheets.
  • the sealant after solidifying is in a form of a thin sheet which is contiguous and coextensive with the adjacent parting sheets of adjacent modules.
  • the gap is kept small for minimum size and weight, and also to minimize the insulating effect of the sealant.
  • the sealant is a polymer of the anerobic type that is well known in the art and has the characteristics of polymerizing or curing at room temperature when in films of approximately .005 of an inch. Additional curing can be achieved by b aking at moderate temperature.
  • a commercial example of this sealant is marketed under the trade name Loctite, available from the Loctite Corporation, Newington, Conn.
  • Other examples of a suitable anerobic sealant are described in Pat. Nos. 3,046,262; 3,041,322; 3,203,941 and 3,043,820.
  • the manner of filling the gap is by immersing the edge of the core in a container which is partially filled with the liquid sealant.
  • the level of the liquid sealant is suflicient to merely cover the edge of the core inserted in the container.
  • capillary action induces the sealant to flow from the bottom to the top of the core. Due to its characteristic of curing only at thin films, it will only solidify between the gaps leaving the fin area void of sealant.
  • the headers are then attached to the core bands to form the heat exchanger.
  • a suitable material for fabricating the heat exchanger may be aluminum or stainless steel.
  • Heat exchanger construction of the plate-fin type having a core comprising individual stacked modules, each module including a pair of spaced parting sheets, corrugated fins disposed in the space between said pair of parting sheets defining therewith open-ended channels, closure bars mounted adjacent opposite edges of the corrugated fins disposed in said space, and substantially impervious sealing means in contiguous and coextensive relation to the 'face of the parting sheets and being disposed between adjacent modules preventing the propagation of cracks in said parting sheets and leakage from occurring from said modules.
  • Heat exchanger construction as claimed in claim 1 including additional closure bars spaced parallel to the closure bars adjacent the edge of the fins defining therewith an open-ended channel and headers mounted at the corner of said core communicating with said openended channel.
  • a heat exchanger having a core comprising a plurality of stacked modules, each module having a pair of spaced, parallel parting sheets defining a space therebetween, corrugated fins mounted in said space and bonded at its high and low points to the inward face of said pair of parting sheets and defining therewith a plurality of open-ended channels, closure bars at the side edges of said corrugated fins and said parting sheets and also bonded to the inward face of said parting sheets, each of said modules being stacked so that the parting sheets of adjacent modules are in spaced parallel relation and sealing means disposed in the space between adjacent modules to prevent the propagation of cracks in said adjacent parting sheets and the escapement of fluid in the open-ended channels of one module to the openended channels of adjacent modules, said substantially impervious sealing means being contiguous and coextensive with the outer faces of the parting sheets defining said space between adjacent modules.

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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)
US670356A 1967-09-25 1967-09-25 Self-sealing fluid/fluid heat exchanger Expired - Lifetime US3517731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67035667A 1967-09-25 1967-09-25

Publications (1)

Publication Number Publication Date
US3517731A true US3517731A (en) 1970-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
US670356A Expired - Lifetime US3517731A (en) 1967-09-25 1967-09-25 Self-sealing fluid/fluid heat exchanger

Country Status (3)

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US (1) US3517731A (enExample)
FR (1) FR1582377A (enExample)
GB (1) GB1214219A (enExample)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958631A (en) * 1972-12-11 1976-05-25 Siemens Aktiengesellschaft Heat exchanger for catalytic gas converters
US4249597A (en) * 1979-05-07 1981-02-10 General Motors Corporation Plate type heat exchanger
US4301863A (en) * 1978-11-22 1981-11-24 United Technologies Corporation Heat exchanger closure bar construction
US4623019A (en) * 1985-09-30 1986-11-18 United Aircraft Products, Inc. Heat exchanger with heat transfer control
US4872504A (en) * 1982-09-13 1989-10-10 Plascore, Inc. Modular heat exchanger housing
US6520252B1 (en) * 2001-12-21 2003-02-18 Hamilton Sundstrand Heat exchanger assembly with core-reinforcing closure bars
US20070107889A1 (en) * 2005-11-17 2007-05-17 Mark Zaffetti Core assembly with deformation preventing features
US20070209785A1 (en) * 2003-10-09 2007-09-13 Behr Industrietechnik Gmbh & Co. Kg Cooler Block, Especially For A Charge Air Cooler/Coolant Cooler
US20100181053A1 (en) * 2008-10-23 2010-07-22 Linde Aktiengesellschaft Plate Heat Exchanger
US20120118544A1 (en) * 2010-11-17 2012-05-17 Denso Marston Ltd Adjustable tank for bar-plate heat exchanger
US20120138280A1 (en) * 2009-05-28 2012-06-07 Hans-Heinrich Angermann Layer heat exchanger for high temperatures
US20130277028A1 (en) * 2010-12-31 2013-10-24 Vahterus Oy Plate heat exchanger and method for manufacturing of a plate heat exchanger
WO2014147977A1 (ja) * 2013-03-18 2014-09-25 住友精密工業株式会社 熱交換器
US20150053380A1 (en) * 2013-08-21 2015-02-26 Hamilton Sundstrand Corporation Heat exchanger fin with crack arrestor
CN104457380A (zh) * 2014-12-02 2015-03-25 浙江银轮机械股份有限公司 一种耐高压封条式芯子
CN105973046A (zh) * 2016-06-30 2016-09-28 潘立华 一种温能保留设备
US10782074B2 (en) 2017-10-20 2020-09-22 Api Heat Transfer, Inc. Heat exchanger with a cooling medium bar
US11168943B2 (en) 2018-10-12 2021-11-09 Api Heat Transfer Thermasys Corporation Channel fin heat exchangers and methods of manufacturing the same
US11221186B2 (en) * 2019-07-18 2022-01-11 Hamilton Sundstrand Corporation Heat exchanger closure bar with shield
US20220011052A1 (en) * 2018-11-26 2022-01-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for manufacturing a heat exchanger comprising a zone to be supported and heat exchanger manufactured using such a method

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE405642B (sv) * 1976-03-31 1978-12-18 Svenska Flaektfabriken Ab Plattvermevexlare for strommande media, foretredesvis luft, innefattande omvexlande plana och korrugerade folier
DE2700220C3 (de) * 1977-01-05 1981-04-30 Linde Ag, 6200 Wiesbaden Plattenwärmetauscher
US4293033A (en) 1979-06-29 1981-10-06 Linde Aktiengesellschaft Plate-type heat exchanger
DE3106075C2 (de) * 1981-02-19 1984-10-04 Dieter Christian Steinegg-Appenzell Steeb Wärmetauscher
BE1002138A5 (nl) * 1987-12-24 1990-07-24 Florizoone Bertrand Kompakte gas-gas warmtewisselaar.
FR2935473A1 (fr) * 2008-08-27 2010-03-05 Air Liquide Echangeur de chaleur.
DE202010015374U1 (de) * 2010-11-02 2011-02-10 Abb Technology Ag Wärmeübertragermodul und Wärmeübertrager
CN102748982A (zh) * 2012-07-05 2012-10-24 无锡金洋铝业有限公司 一种板翅式换热器内通道多孔封条
CN102937390A (zh) * 2012-11-26 2013-02-20 无锡马山永红换热器有限公司 防串腔封板结构
US20160178260A1 (en) * 2013-08-02 2016-06-23 Behr Gmbh & Co. Kg Evaporator heat exchanger
FR3078773B1 (fr) 2018-03-09 2020-09-18 Inetyx Echangeur thermique, ainsi que procede de fabrication d'un tel echangeur thermique

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1863586A (en) * 1928-09-10 1932-06-21 Ig Farbenindustrie Ag Heat exchanger
US2512875A (en) * 1950-06-27 Cellular radiant heating panel
US2846198A (en) * 1953-11-27 1958-08-05 Ici Ltd Heat exchangers
US2985434A (en) * 1957-03-15 1961-05-23 Air Preheater Regenerator
US3203404A (en) * 1961-02-17 1965-08-31 Avy L Miller Water heater with heat insulating coating on tubes
US3216484A (en) * 1960-09-09 1965-11-09 Ibm Cryogenic regenerator
US3241607A (en) * 1964-06-05 1966-03-22 Stewart Warner Corp Brazed joint
US3247899A (en) * 1963-04-10 1966-04-26 United Aircraft Prod Plate type heat exchanger
US3252510A (en) * 1964-08-14 1966-05-24 Stewart Warner Corp Heat exchanger using brazed joints
US3428614A (en) * 1966-03-09 1969-02-18 Princeton Chemical Res Inc Anaerobic adhesive

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512875A (en) * 1950-06-27 Cellular radiant heating panel
US1863586A (en) * 1928-09-10 1932-06-21 Ig Farbenindustrie Ag Heat exchanger
US2846198A (en) * 1953-11-27 1958-08-05 Ici Ltd Heat exchangers
US2985434A (en) * 1957-03-15 1961-05-23 Air Preheater Regenerator
US3216484A (en) * 1960-09-09 1965-11-09 Ibm Cryogenic regenerator
US3203404A (en) * 1961-02-17 1965-08-31 Avy L Miller Water heater with heat insulating coating on tubes
US3247899A (en) * 1963-04-10 1966-04-26 United Aircraft Prod Plate type heat exchanger
US3241607A (en) * 1964-06-05 1966-03-22 Stewart Warner Corp Brazed joint
US3252510A (en) * 1964-08-14 1966-05-24 Stewart Warner Corp Heat exchanger using brazed joints
US3428614A (en) * 1966-03-09 1969-02-18 Princeton Chemical Res Inc Anaerobic adhesive

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958631A (en) * 1972-12-11 1976-05-25 Siemens Aktiengesellschaft Heat exchanger for catalytic gas converters
US4301863A (en) * 1978-11-22 1981-11-24 United Technologies Corporation Heat exchanger closure bar construction
US4249597A (en) * 1979-05-07 1981-02-10 General Motors Corporation Plate type heat exchanger
US4872504A (en) * 1982-09-13 1989-10-10 Plascore, Inc. Modular heat exchanger housing
US4623019A (en) * 1985-09-30 1986-11-18 United Aircraft Products, Inc. Heat exchanger with heat transfer control
US6520252B1 (en) * 2001-12-21 2003-02-18 Hamilton Sundstrand Heat exchanger assembly with core-reinforcing closure bars
US8689858B2 (en) 2003-10-09 2014-04-08 Behr Industry Gmbh & Co. Kg Cooler block, especially for a change air cooler/coolant cooler
US20070209785A1 (en) * 2003-10-09 2007-09-13 Behr Industrietechnik Gmbh & Co. Kg Cooler Block, Especially For A Charge Air Cooler/Coolant Cooler
US20070107889A1 (en) * 2005-11-17 2007-05-17 Mark Zaffetti Core assembly with deformation preventing features
US8276654B2 (en) * 2005-11-17 2012-10-02 Hamilton Sundstrand Corporation Core assembly with deformation preventing features
US20100181053A1 (en) * 2008-10-23 2010-07-22 Linde Aktiengesellschaft Plate Heat Exchanger
US20120138280A1 (en) * 2009-05-28 2012-06-07 Hans-Heinrich Angermann Layer heat exchanger for high temperatures
US20120118544A1 (en) * 2010-11-17 2012-05-17 Denso Marston Ltd Adjustable tank for bar-plate heat exchanger
US9022100B2 (en) * 2010-11-17 2015-05-05 Denso Marston Ltd. Adjustable tank for bar-plate heat exchanger
US20130277028A1 (en) * 2010-12-31 2013-10-24 Vahterus Oy Plate heat exchanger and method for manufacturing of a plate heat exchanger
WO2014147977A1 (ja) * 2013-03-18 2014-09-25 住友精密工業株式会社 熱交換器
JP2014181825A (ja) * 2013-03-18 2014-09-29 Sumitomo Precision Prod Co Ltd 熱交換器
CN105008842A (zh) * 2013-03-18 2015-10-28 住友精密工业株式会社 热交换器
CN105008842B (zh) * 2013-03-18 2017-02-08 住友精密工业株式会社 热交换器
US9810489B2 (en) 2013-03-18 2017-11-07 Sumitomo Precision Products Co., Ltd. Heat exchanger
US20150053380A1 (en) * 2013-08-21 2015-02-26 Hamilton Sundstrand Corporation Heat exchanger fin with crack arrestor
US10112270B2 (en) * 2013-08-21 2018-10-30 Hamilton Sundstrand Corporation Heat exchanger fin with crack arrestor
CN104457380A (zh) * 2014-12-02 2015-03-25 浙江银轮机械股份有限公司 一种耐高压封条式芯子
CN105973046A (zh) * 2016-06-30 2016-09-28 潘立华 一种温能保留设备
US10782074B2 (en) 2017-10-20 2020-09-22 Api Heat Transfer, Inc. Heat exchanger with a cooling medium bar
US11168943B2 (en) 2018-10-12 2021-11-09 Api Heat Transfer Thermasys Corporation Channel fin heat exchangers and methods of manufacturing the same
US20220011052A1 (en) * 2018-11-26 2022-01-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for manufacturing a heat exchanger comprising a zone to be supported and heat exchanger manufactured using such a method
US11221186B2 (en) * 2019-07-18 2022-01-11 Hamilton Sundstrand Corporation Heat exchanger closure bar with shield

Also Published As

Publication number Publication date
GB1214219A (en) 1970-12-02
FR1582377A (enExample) 1969-09-26

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