US2429508A - Plate heat exchange apparatus - Google Patents

Plate heat exchange apparatus Download PDF

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Publication number
US2429508A
US2429508A US520865A US52086544A US2429508A US 2429508 A US2429508 A US 2429508A US 520865 A US520865 A US 520865A US 52086544 A US52086544 A US 52086544A US 2429508 A US2429508 A US 2429508A
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Prior art keywords
heat exchange
exchange apparatus
corrugation
strip
plate heat
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Expired - Lifetime
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US520865A
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Belaieff James Frank
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CYRIL TERENCE DELANEY AND GALL
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CYRIL TERENCE DELANEY AND GALL
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Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0366Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by spaced plates with inserted elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-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
    • F28D9/0012Heat-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 apparatus having an annular form
    • F28D9/0018Heat-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 apparatus having an annular form without any annular circulation of the heat exchange media
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1048Geometric details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1052Rotary wheel comprising a non-axial air flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1068Rotary wheel comprising one rotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1084Rotary wheel comprising two flow rotor segments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00Devices or apparatus used for air treatment
    • F24F2203/10Rotary wheel
    • F24F2203/1096Rotary wheel comprising sealing means
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/1234Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12389All metal or with adjacent metals having variation in thickness
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/1241Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24669Aligned or parallel nonplanarities

Description

Qct. 2l', 1947. 1J. F. BELAIEFF 2,429,508

\ PLATE HEAT EXCHANGE APPARATUS Filed Feb 3, 1944 VVI E 4 AYAYAVAVImnvAvAwE? Patented Oct. 21, 1947 PLATE HEAT EXCHANGE APPARATUS James Frank Belaei, Cricklewood, London, England, assignor of two-thirds to Cyril Terence Delaney and Gallay Limited, a company of Great Britain, both of Crieklewood, London,

England Application February 3, 1944, Serial No. 520,865 In Great Britain February 5, 1943 2 Claims. 1

Thisinvention relates to plate heat exchange apparatus and more particularly to heat exchange apparatus of the kind known as secondary heat exchange apparatus.

Radiators, oil coolers or other heat exchangers for use in the cooling system of internal combustion engines of aircraft, motor vehicles or stationary plant are very often required to be of other than rectangular shape. The medium to be used as a coolant in the radiator or the like is hereinafter referred to as the cooling medium. The medium to be cooled in the radiator or the like may, and usually is, itself a coolant in the engine or elsewhere, and is hereinafter referred to as the coolant. In the radiator of annular shape it may be constructed so that the air or other cooling medium will enter at the centre of the annulus and leave the unit at the periphery. Since the passages for the coolant must be kept small, such an arrangement necessitates a heat exchange unit having an entry area for the cooling medium which is smaller than the exit area. Consequently, in such construction the passages for the cooling medium have to expand progressively from the inner to the outer periphery of the heat exchange unit. These passages for the cooling medium are of course, constituted by the adjacent walls of the passages for the coolant with or without the interposition of intermediate walls, and the passages for the coolant are supported in spaced relation for example, by means of thin corrugated strips, the corrugations being V-shaped.

Where the distance between the adjacent walls is constant the thin corrugated strips can easily be used and give excellent support whilst serving at the same time as cooling surfaces. When, however, the distance between the adjacent walls is not constant the depth of the corrugations has to vary. One way of varying the depth of the corrugations is to use an arcuate strip but this presents certain difficulties such as the limitation of the length of strip by reason of its arcuate form. Another method would be to subject the strip to a stretching operation in a press instead of a simple corrugation process. This, however, is not too good for two reasons, namely, that the strip is already very thin and, therefore, likely to fracture if further stretched, and also that the strip would be thinned out just where it should conduct most heat if it is to operate with the maximum possible efficiency.

Other orthodox forms of secondary surface radiators comprise perforated fins fitted on tubes. The construction of annular radiators by this 2 means would be most difficult and wasteful owing to the fact that the development of the fins will not be rectangular or inthe shape of a parallelogram but will take the form of an annulus or section of an annulus.

The object of the present invention is to provide a new construction which will overcome some or all of the above difficulties.

According to the present invention, a plate heat exchange apparatus having diverging and/or converging adjacent walls held in spaced relation by corrugated elements is characterized in that the cross-sectional form of said corrugations is varied longitudinally thereof to co-operate with the adjacent walls without changing the lineal dimensions of the material from which such elements are formed. -The lineal dimensions of all such cross-sections are equal so that corrugated elements of varying depth of corrugation maybe produced from a straight strip.

In order that the invention may be more fully understood one form of plate heat exchange ap. paratus will now be described with reference to the drawings led herewith, wherein- Fig. 1 is a perspective view of a portion of an annular radiator made in accordance with the present invention; and

Fig. 2 is a perspective view rugated strips used in the construction of the radiator shown in Fig. 1.

The annular or cylindrical form of heat exchange unit shown comprises a plurality of chambers I for the coolant, each chamberconsisting of a pair of parallel thin walls 2 held in spaced relation by a thin corrugated strip 3 the corrugations of which run parallel to the axis of the annulus or cylinder. It is, of course, understood that the inner and outer edges of the chambers I are sealed, and the ends are sealed into header tanks which have been omitted for the sake of clearness as they form no part of the present invention. The chambers I are arranged radially around the axis of the cylinder. Disposed medially between each of the chambers I is an intermediate wall 4 and disposed between the intermediate walls 4 and the walls 2 of the chambers I are the corrugated elements 5 which form the subject of the present invention and the construction of which will be described more fully with particular reference to Fig. 2 in which a part of one of the elements is shown on an enlarged scale. v

It will be observed that at one edge the corrugatiQnS @le V-shaped Whilst at the other edge the of one of the cor- 3 corrugations are of three-sided right-angled channel formation.

The strip 5 is shaped in such a manner that the pitch p' of the V-shaped corrugations, and the pitchp of the three-sided right-angle channel formation corrugations are identical, and the length of the contour of the strip edge in pitch p, that is, :cto e', is identical to the length of the contour of the strip edge in pitch p', that is, x' to e', and the length of the cross-sectional contour of the strip in the pitch of a corrugation at all positions between the two edges of thestrip is identical to the length of the contour at each edge of the strip in the pitch of a-corrugation.

In other words the tops of the corrugations are flattened progressively starting at one edge and reaching a maximum at the other edge. It will also be observed that the pitch of the corrugations remains unchanged and is constant for any cross section. The cross-section of the sheet at any position between the edges is of three-sided channel section having a at base and diverging sides. The element is `stamped from a straight strip without any stretching whatsoever so that if all the folds are ironed out it will return to a straight strip, but owing to the change in the shape of the corrugations from edge to edge the depth of the corrugations is increased progressively from the edge having the three-sided right- 1. In a plate heat exchange apparatus hav-luv diverging adjacent walls held in spaced rclatm:l by corrugated elements, a corrugated clement formed of strip metal in which the depth of each corrugtion increases progressively from on@ end of said corrugation to the other, the pitch of cach corrugation and the length of the cross-sectional contour in the pitch of a corrugation remaining constant throughout the length of the corrugation, the sectional form of the corrugation varying longitudinally thereof.

2. In a plate heat exchange apparatus having diverging adjacent walls held in spaced relation by corrugated elements, a corrugated element formed of strip metal in -which the depth of each l corrugation increases progressively from one end angle channel form to the edge having the V- form. These depths are shown as H and H respectively.

It will be obvious, however, that any convenient variation in form of the corrugations may be adopted to suit the circumstances of each particular case and the invention is not to be regarded as limited to the particular form above described.

In the construction described above, the corrugated elements 5 are manufactured from straight strips of metal, thereby reducing wastage of metal and overcoming many blanking diniculties.

What I claim and desire to secure by Letters Patent is:

' of said corrugation to the other, the pitch of each corrugation and the length of the cross-sectional contour in the pitch of a corrugation remaining constant throughout the length of the corrugation, the sectional form of the corrugation varying longitudinally thereof. the corrugations having a V-shaped contour at the ends disposed along one edge of the element, a three-sided right-angle channel contour at the other ends, and a three-sided channel cross-section with flat base and diverging sides between said ends, the said cross-section progressively merging into the said end contours. l

JAMES FRANK BELAIEFF.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date o 1,429,644 Schreiner Sept. 19, 1922 1,914,077 Cluchey June 13. 1933 2,312,767 Meyerhoefer Mar. 2, 1943 2,153,120 Ludlow et al Apr. 4, 1939 2,344,588 Blauvelt Mar. 21, 1944

US520865A 1943-02-05 1944-02-03 Plate heat exchange apparatus Expired - Lifetime US2429508A (en)

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GB195643A GB567880A (en) 1943-02-05 1943-02-05 Improvements in, or relating to, plate heat exchange apparatus

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656158A (en) * 1948-07-23 1953-10-20 Air Preheater Plate type heat exchanger and method of manufacturing same
US2792200A (en) * 1952-03-15 1957-05-14 Modine Mfg Co Toroidal type heat exchanger
US2812165A (en) * 1953-02-06 1957-11-05 Air Preheater Header units for plate type heat exchanger
US3079994A (en) * 1956-01-30 1963-03-05 Daimler Benz Ag Heat transfer plate construction
US3092178A (en) * 1954-05-26 1963-06-04 Carrier Corp Air conditioning units
US3168432A (en) * 1961-12-22 1965-02-02 Thore M Elfving Core material
US3178335A (en) * 1960-08-18 1965-04-13 Forschungszentrum Der Luftfabr Honeycomb structure
US3289757A (en) * 1964-06-24 1966-12-06 Stewart Warner Corp Heat exchanger
US3461013A (en) * 1962-12-14 1969-08-12 Wood Marc Sa Method and apparatus for sandwiching corrugated core between skin layers
DE2721321A1 (en) * 1976-07-30 1978-02-02 Sulzer Ag Heat exchanger media involved with a wall-like separation for the two at the heat transfer
EP0014066A1 (en) * 1979-01-17 1980-08-06 Alfa-Laval Ab Plate heat exchanger
FR2487217A1 (en) * 1980-07-24 1982-01-29 Toyo Boseki Method and apparatus for dehumidifying air and gas
US4527622A (en) * 1981-08-06 1985-07-09 Klockner-Humboldt-Deutz Aktiengesellschaft Ring-shaped recuperative heat exchanger
US5004044A (en) * 1989-10-02 1991-04-02 Avco Corporation Compact rectilinear heat exhanger
WO1991019949A1 (en) * 1990-06-12 1991-12-26 Goetz Edward E Jr Tube and fin circular heat exchanger
US5081834A (en) * 1990-05-29 1992-01-21 Solar Turbines Incorporated Circular heat exchanger having uniform cross-sectional area throughout the passages therein
US5121792A (en) * 1987-12-10 1992-06-16 Sita Maschinenbau- Und Forschungs Gmbh Countercurrent heat-exchanger
US5172752A (en) * 1990-06-12 1992-12-22 Goetz Jr Edward E Curved heat exchanger with low frontal area tube passes
US6386275B1 (en) * 2001-08-16 2002-05-14 Chaun-Choung Technology Corp. Surrounding type fin-retaining structure of heat radiator
US20040200602A1 (en) * 2001-07-31 2004-10-14 Hugill James Anthony System for stripping and rectifying a fluid mixture
US20050087330A1 (en) * 2003-10-28 2005-04-28 Yungmo Kang Recuperator construction for a gas turbine engine
US20050098309A1 (en) * 2003-10-28 2005-05-12 Yungmo Kang Recuperator assembly and procedures
US20100314088A1 (en) * 2009-06-11 2010-12-16 Agency For Defense Development Heat exchanger having micro-channels
US20110072587A1 (en) * 2009-09-29 2011-03-31 Nomaco Inc. Foam cushion having reduced cross-section area foam profiles forming hollow portion(s) for deformation
US20110197363A1 (en) * 2010-02-12 2011-08-18 Noel Group Llc Composite cushioning structure(s) with spatially variable cushioning properties and related materials, cushioning assemblies, and methods for producing same
WO2012106601A3 (en) * 2011-02-04 2012-09-20 Lockheed Martin Corporation Radial-flow heat exchanger with foam heat exchange fins
USD688069S1 (en) 2012-09-28 2013-08-20 Noel Group Llc Mattress bed cushion
USD688492S1 (en) 2010-03-03 2013-08-27 Noel Group Llc Mattress bed cushion
USD690536S1 (en) 2012-07-26 2013-10-01 Nomaco Inc. Motion isolation insulator pad
US20130263829A1 (en) * 2012-04-05 2013-10-10 Ford Global Technologies, Llc Gas-to-liquid heat exchanger
USD691400S1 (en) * 2012-02-10 2013-10-15 Nomaco Inc. Stackable base for mattress assembly
USD691401S1 (en) 2009-03-06 2013-10-15 Noel Group, Llc Mattress bed cushion
USD692694S1 (en) 2012-09-28 2013-11-05 Noel Group Llc Mattress bed cushion
USD692693S1 (en) 2012-04-27 2013-11-05 Noel Group Llc Mattress bed cushion
USD692692S1 (en) 2011-04-29 2013-11-05 Noel Group Llc Mattress bed cushion
USD693148S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693145S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693149S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693147S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693144S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693146S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD694041S1 (en) 2012-09-28 2013-11-26 Noel Group Llc Mattress bed cushion
USD694552S1 (en) 2012-04-27 2013-12-03 Noel Group Llc Mattress bed cushion
USD694553S1 (en) 2010-03-03 2013-12-03 Noel Group Llc Mattress bed cushion
USD697337S1 (en) 2012-07-03 2014-01-14 Nomaco, Inc. Stackable base for mattress assembly
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
US9080818B2 (en) 2011-02-04 2015-07-14 Lockheed Martin Corporation Heat exchanger with foam fins
US20160220977A1 (en) * 2011-07-19 2016-08-04 Velocys, Inc. Microchannel reactors and fabrication processes
US9464847B2 (en) 2011-02-04 2016-10-11 Lockheed Martin Corporation Shell-and-tube heat exchangers with foam heat transfer units
US9951997B2 (en) 2011-02-04 2018-04-24 Lockheed Martin Corporation Staged graphite foam heat exchangers
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods

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WO1984001817A1 (en) * 1982-11-04 1984-05-10 Matsushita Electric Ind Co Ltd Heat exchanger

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US1914077A (en) * 1932-03-24 1933-06-13 Cluchey George Leland Heating apparatus
US2153120A (en) * 1937-05-24 1939-04-04 Noblitt Sparks Ind Inc Automobile body heater
US2312767A (en) * 1940-02-21 1943-03-02 E A Lab Inc Heater
US2344588A (en) * 1941-01-06 1944-03-21 Blauvelt Associates Inc Heat transfer device

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Publication number Priority date Publication date Assignee Title
US1429644A (en) * 1921-03-28 1922-09-19 Schreiner Vincent Radiator core
US1914077A (en) * 1932-03-24 1933-06-13 Cluchey George Leland Heating apparatus
US2153120A (en) * 1937-05-24 1939-04-04 Noblitt Sparks Ind Inc Automobile body heater
US2312767A (en) * 1940-02-21 1943-03-02 E A Lab Inc Heater
US2344588A (en) * 1941-01-06 1944-03-21 Blauvelt Associates Inc Heat transfer device

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656158A (en) * 1948-07-23 1953-10-20 Air Preheater Plate type heat exchanger and method of manufacturing same
US2792200A (en) * 1952-03-15 1957-05-14 Modine Mfg Co Toroidal type heat exchanger
US2812165A (en) * 1953-02-06 1957-11-05 Air Preheater Header units for plate type heat exchanger
US3092178A (en) * 1954-05-26 1963-06-04 Carrier Corp Air conditioning units
US3079994A (en) * 1956-01-30 1963-03-05 Daimler Benz Ag Heat transfer plate construction
US3178335A (en) * 1960-08-18 1965-04-13 Forschungszentrum Der Luftfabr Honeycomb structure
US3168432A (en) * 1961-12-22 1965-02-02 Thore M Elfving Core material
US3461013A (en) * 1962-12-14 1969-08-12 Wood Marc Sa Method and apparatus for sandwiching corrugated core between skin layers
US3289757A (en) * 1964-06-24 1966-12-06 Stewart Warner Corp Heat exchanger
DE2721321A1 (en) * 1976-07-30 1978-02-02 Sulzer Ag Heat exchanger media involved with a wall-like separation for the two at the heat transfer
EP0014066A1 (en) * 1979-01-17 1980-08-06 Alfa-Laval Ab Plate heat exchanger
FR2487217A1 (en) * 1980-07-24 1982-01-29 Toyo Boseki Method and apparatus for dehumidifying air and gas
US4527622A (en) * 1981-08-06 1985-07-09 Klockner-Humboldt-Deutz Aktiengesellschaft Ring-shaped recuperative heat exchanger
US5121792A (en) * 1987-12-10 1992-06-16 Sita Maschinenbau- Und Forschungs Gmbh Countercurrent heat-exchanger
US5004044A (en) * 1989-10-02 1991-04-02 Avco Corporation Compact rectilinear heat exhanger
US5081834A (en) * 1990-05-29 1992-01-21 Solar Turbines Incorporated Circular heat exchanger having uniform cross-sectional area throughout the passages therein
US5078206A (en) * 1990-06-12 1992-01-07 Goetz Jr Edward E Tube and fin circular heat exchanger
US5172752A (en) * 1990-06-12 1992-12-22 Goetz Jr Edward E Curved heat exchanger with low frontal area tube passes
WO1991019949A1 (en) * 1990-06-12 1991-12-26 Goetz Edward E Jr Tube and fin circular heat exchanger
US7111673B2 (en) * 2001-07-31 2006-09-26 Stichting Energieonderzoek Centrum Nederland System for stripping and rectifying a fluid mixture
US20040200602A1 (en) * 2001-07-31 2004-10-14 Hugill James Anthony System for stripping and rectifying a fluid mixture
US6386275B1 (en) * 2001-08-16 2002-05-14 Chaun-Choung Technology Corp. Surrounding type fin-retaining structure of heat radiator
US20050087330A1 (en) * 2003-10-28 2005-04-28 Yungmo Kang Recuperator construction for a gas turbine engine
US20050098309A1 (en) * 2003-10-28 2005-05-12 Yungmo Kang Recuperator assembly and procedures
US7065873B2 (en) 2003-10-28 2006-06-27 Capstone Turbine Corporation Recuperator assembly and procedures
US20060137868A1 (en) * 2003-10-28 2006-06-29 Yungmo Kang Recuperator assembly and procedures
US7147050B2 (en) 2003-10-28 2006-12-12 Capstone Turbine Corporation Recuperator construction for a gas turbine engine
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