US3251410A - Heat exchange devices - Google Patents

Heat exchange devices Download PDF

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Publication number
US3251410A
US3251410A US425116A US42511665A US3251410A US 3251410 A US3251410 A US 3251410A US 425116 A US425116 A US 425116A US 42511665 A US42511665 A US 42511665A US 3251410 A US3251410 A US 3251410A
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Prior art keywords
tube
fin plates
heat exchange
fin
ribs
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Expired - Lifetime
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US425116A
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Raskin Walter
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Dean Products Inc
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Dean Products Inc
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Priority to US425116A priority Critical patent/US3251410A/en
Priority to BE677693D priority patent/BE677693A/fr
Priority to FR53375A priority patent/FR1471112A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/30—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/06—Heat exchange conduits having walls comprising obliquely extending corrugations, e.g. in the form of threads

Definitions

  • HEAT EXCHANGE DEVICES Filed Jan. 8, 1965 United States Patent 3,251,410 HEAT EXCHANGE DEVICES Walter Raskin, Brooklyn, N.Y., assignor to Dean Products Inc., Brooklyn, N.Y., a corporation of New York Filed Jan. 8, 1965, Ser. No. 425,116
  • This invention relates to heat exchange devices and more particularly to heat exchange elements used in heating, cooling and refrigerating, such as is shown, for example, in my Patent No. 2,434,519.
  • the invention contemplates the provision of a tube formed with a central cylindrical fluid passage and a plurality of radially extending hollow ribs arranged in a matching pattern around the cylindrical passage.
  • the invention contemplates an arrangement of a plurality of spaced fin plates closely embracing the periphery of the tube, with the center ends of the hollow ribs terminating inwardly of the outer edges of the fin plates, each of the fin plates having a centrally-located round hole and radially extending slots projecting from the hole, the hole and the radial slots of the fin plates embracing the periphery of the tube and providing the sole peripheral support of the tube so that the tube is thereby supported against thermal pressure and the fin plates are self-adjusting relatively to the tube to provide for maximum thermal pressure therebetween.
  • the fin plates are of such shape that they provide a plurality of corners which are located radially outwardly of the hollow ribs to produce effective thermal distribution by the fin plates.
  • FIG. 1 is a perspective view of a portion of the prime surface ribbed heat exchange tube with the secondary surface fin plates omitted therefrom;
  • FIG. 2 is a face view of one of the fin plates for application on the ribbed tube of FIG. 1;
  • FIG. 3 is a top plan view of a portion of the hollow ribbed tube of FIG. 1 with a number of the fin plates, such as is shown in FIG. 2, fitted on it;
  • FIG. 4 is a front elevational view of the structure of FIG. 3 with the ribbed tube thereof being shown in section, and
  • FIG. 5 is a plan view of another embodiment of the invention in which the tube is provided with spirally arranged ribs, and a few of the fin plates are shown in position on the tube.
  • a tube 1 having a cylindrical central conduit portion 2 forming a passage for the heat exchange medium or fluid.
  • a plurality of radially extending hollow ribs 3 formed integrally with the conduit portion 2. Four of these ribs are shown in the drawing, but this number may be increased or decreased as desired.
  • These ribs are hollow or of doublewall arrangement, being provided with the spaced opposed walls 4, 4 to thereby provide for a slight spacing 12 between these walls, which spacing communicates at one end with the interior of the central cylindrical conduit tube. The outer end of each of the spaces 12 is closed by the band 5 located at the outer end of each of the formed ribs.
  • the result of this construction is a hollow conduit provided with a plurality of hollow radial ribs capable of expansion under pressure within the tube.
  • the ribs are arranged straight or in parallelism, while in the embodiment shown in FIG. 5, the ribs 6 therein shown are arranged spirally, as suggested in my Patent No. 2,434,519.
  • a plurality of plates 7 constituting radially projecting fin plates.
  • Each of these fin plates is provided with a central circular aperture 8 from which a plurality of radial slots 9 extend.
  • These slots 9 conform in shape and in number to the radial ribs on the tube 1 and the central aperture 8 conforms in shape to the outer surface of the central conduit part 2, so that the fin plates 7 can thus be precisely fitted on the tube 1 and they will be nonrotatively mounted thereon as clearly shown in FIGS. 3 and 4.
  • the slots are arranged, in the embodiment shown, to form. the diagonals of a square.
  • each of the fin plates and the radial slots extending therefrom embrace the periphery of the tube and provide the sole peripheral support of the tube so that the tube is thus supported against internal pressure and the fin plates will be self-adjusting relatively to the tube to provide maximum heat transmission therebetween.
  • heat exchange conduits have been provided with fin plates.
  • chemical and physical deterioration often sets in between the surface of the tube and the peripheral edge of the holes in the plates through which the tube extends.
  • loss of uniform contact between the tube and its fins occurs; then the fin plates tend to loosen on the tube and the effective heat surfaces available is materially reduced.
  • the pressure of the heating or cooling medium within the flow passage or conduit 2 causes pressure to be imposed outwardly on the inside surface of the walls 4, 4 of the ribs, tending to cause the same to spread apart, within the radial slots 9 in the fin compensated for by the spreading apart of the walls of the ribs 3 under the internal operating pressure.
  • greater tube 3 strength is maintained and good thermal contact between the tube of FIG. 1 and the fin'plates 7 applied thereon as herein described, will be constantly assured.
  • each fin plate 7 When platesor fins are applied to conventional cylindrical tubes, uniform thermal distribution for the complete surface of such plates is not always obtained. With the present construction, the considerable radial projection of the hollow ribs 3 toward the outer edges of each fin plate 7 is such that effective thermal distribution throughout the entire area of each fin plate takes place definitely. It is also to be noted that a ribbed tube of the type described, when embraced by a plurality of the fin plates 7, is materially stiifened, supported and strengthened. The described arrangement also provides low cost additional radiating surface for heat exchange, and provides for a more eificient use of the primary tube and the secondary fin surfaces. extra strength inherent in a fin and tube heat exchanger of this character is such as to enable greater heat transfer and to accommodate higher pressure with less weight and metal. It is to be noted that the corners of the fin plates are located radially outwardly of the ribs to produce efiective thermal distribution by the fin plates.
  • a tube for a heat exchange device wherein there are a plurality of spaced fin plates embracing the periphery of It has been found that the tube; said tube having a central cylindrical fluid passage and radially extending hollow ribs arranged in a matching pattern around the cylindrical passage, the ends of said hollow ribs terminating inwardly of the outer edges of said fin plates, each of the said fin plates comprising a relatively flat sheet of metal having a centrally located round hole therethrough and slots extending radially from the hole, the relatively thin edges of said sheet at said hole and said slots closely and frictionally engaging the periphery of said tube and providing the sole support ofsaid tube, each of said plates having a plurality of corners, and each of said corners being located radially outwardly of a rib; wherein expansion of said ribs will cause said tube to tightly engage the edges of said hold and slots in said fin even when deterioration of the metal occurs and wherein the rib pressures occur at the corners of the plates for maximum strength and efiective thermal distribution

Description

y 1965 w. RASKIN 3,251,410
HEAT EXCHANGE DEVICES Filed Jan. 8, 1965 United States Patent 3,251,410 HEAT EXCHANGE DEVICES Walter Raskin, Brooklyn, N.Y., assignor to Dean Products Inc., Brooklyn, N.Y., a corporation of New York Filed Jan. 8, 1965, Ser. No. 425,116
1 Claim. (Cl. 165-181) This application is a continuation-in-part of copending application Ser. No. 241,869, filed Dec, 3, 1962, and now abandoned.
This invention relates to heat exchange devices and more particularly to heat exchange elements used in heating, cooling and refrigerating, such as is shown, for example, in my Patent No. 2,434,519.
It is an object of the invention to provide a primary surface tube with confluent ribs over which is fitted a plurality of spaced secondary surfaces in the form of fin plates.
It is an object of the invention to provide a tube and fin combination of this character to give more effective total heat exchange surface in a given space and to provide relatively greater strength to the heat exchange element.
' It is an object of the invention to provide a tube in which constant contact will be consistently maintained between the tube and thermal conducting fin plates borne by it and by which a relatively equal distribution of heat transfer for the full area of the fin plates will be attained.
It is an object of the invention to provide heat exchange elements in which a ribbed tube will have hollow radial extensions projecting for a substantial distance into the fin plates borne by it as an aid to economical distribution of the heat transfer action throughout the full areas of the fin plates.
It is an object of the invention to provide means by which any decomposition of adjacent parts of the ribbed tube and the fin plates fitted thereon will be. compensated for, and the assurance of good contact between the parts of the tube and the fins will be had.
More particularly, the invention contemplates the provision of a tube formed with a central cylindrical fluid passage and a plurality of radially extending hollow ribs arranged in a matching pattern around the cylindrical passage. The invention contemplates an arrangement of a plurality of spaced fin plates closely embracing the periphery of the tube, with the center ends of the hollow ribs terminating inwardly of the outer edges of the fin plates, each of the fin plates having a centrally-located round hole and radially extending slots projecting from the hole, the hole and the radial slots of the fin plates embracing the periphery of the tube and providing the sole peripheral support of the tube so that the tube is thereby supported against thermal pressure and the fin plates are self-adjusting relatively to the tube to provide for maximum thermal pressure therebetween. The fin plates are of such shape that they provide a plurality of corners which are located radially outwardly of the hollow ribs to produce effective thermal distribution by the fin plates.
With these and other objects to be hereinafter set forth in view, I have devised the arrangement of parts to be described and more particularly pointed out in the claim appended hereto.
In the accompanying drawing, wherein an illustrative embodiment of the invention is disclosed,
FIG. 1 is a perspective view of a portion of the prime surface ribbed heat exchange tube with the secondary surface fin plates omitted therefrom;
FIG. 2 is a face view of one of the fin plates for application on the ribbed tube of FIG. 1;
FIG. 3 is a top plan view of a portion of the hollow ribbed tube of FIG. 1 with a number of the fin plates, such as is shown in FIG. 2, fitted on it;
3,251,410 Patented May 17, 1966 FIG. 4 is a front elevational view of the structure of FIG. 3 with the ribbed tube thereof being shown in section, and
FIG. 5 is a plan view of another embodiment of the invention in which the tube is provided with spirally arranged ribs, and a few of the fin plates are shown in position on the tube.
In the embodiment of the invention shown in FIG. 4, there is therein shown a tube 1 having a cylindrical central conduit portion 2 forming a passage for the heat exchange medium or fluid. There is provided a plurality of radially extending hollow ribs 3 formed integrally with the conduit portion 2. Four of these ribs are shown in the drawing, but this number may be increased or decreased as desired. These ribs are hollow or of doublewall arrangement, being provided with the spaced opposed walls 4, 4 to thereby provide for a slight spacing 12 between these walls, which spacing communicates at one end with the interior of the central cylindrical conduit tube. The outer end of each of the spaces 12 is closed by the band 5 located at the outer end of each of the formed ribs. The result of this construction is a hollow conduit provided with a plurality of hollow radial ribs capable of expansion under pressure within the tube.
,In the embodiment of the invention shown in FIG. 1, the ribs are arranged straight or in parallelism, while in the embodiment shown in FIG. 5, the ribs 6 therein shown are arranged spirally, as suggested in my Patent No. 2,434,519.
Arranged along the length of the ribbed tube 1 and at suitable equal distances apart if desired is a plurality of plates 7 constituting radially projecting fin plates. Each of these fin plates is provided with a central circular aperture 8 from which a plurality of radial slots 9 extend. These slots 9 conform in shape and in number to the radial ribs on the tube 1 and the central aperture 8 conforms in shape to the outer surface of the central conduit part 2, so that the fin plates 7 can thus be precisely fitted on the tube 1 and they will be nonrotatively mounted thereon as clearly shown in FIGS. 3 and 4. The slots are arranged, in the embodiment shown, to form. the diagonals of a square. When the fin plates are fitted on the tube as above described, there is a frictional engagement between the fins and tube for the purpose of eifecting an optimum of heat transmission between the tube and the fins. The central hole in each of the fin plates and the radial slots extending therefrom embrace the periphery of the tube and provide the sole peripheral support of the tube so that the tube is thus supported against internal pressure and the fin plates will be self-adjusting relatively to the tube to provide maximum heat transmission therebetween.
I am aware that prior to the present invention heat exchange conduits have been provided with fin plates. With that arrangement, chemical and physical deterioration often sets in between the surface of the tube and the peripheral edge of the holes in the plates through which the tube extends. In such a case, loss of uniform contact between the tube and its fins occurs; then the fin plates tend to loosen on the tube and the effective heat surfaces available is materially reduced.
In the present construction, the pressure of the heating or cooling medium within the flow passage or conduit 2 causes pressure to be imposed outwardly on the inside surface of the walls 4, 4 of the ribs, tending to cause the same to spread apart, within the radial slots 9 in the fin compensated for by the spreading apart of the walls of the ribs 3 under the internal operating pressure. As a result, with the described construction, greater tube 3 strength is maintained and good thermal contact between the tube of FIG. 1 and the fin'plates 7 applied thereon as herein described, will be constantly assured.
When platesor fins are applied to conventional cylindrical tubes, uniform thermal distribution for the complete surface of such plates is not always obtained. With the present construction, the considerable radial projection of the hollow ribs 3 toward the outer edges of each fin plate 7 is such that effective thermal distribution throughout the entire area of each fin plate takes place definitely. It is also to be noted that a ribbed tube of the type described, when embraced by a plurality of the fin plates 7, is materially stiifened, supported and strengthened. The described arrangement also provides low cost additional radiating surface for heat exchange, and provides for a more eificient use of the primary tube and the secondary fin surfaces. extra strength inherent in a fin and tube heat exchanger of this character is such as to enable greater heat transfer and to accommodate higher pressure with less weight and metal. It is to be noted that the corners of the fin plates are located radially outwardly of the ribs to produce efiective thermal distribution by the fin plates.
Having thus described an embodiment of the invention, it is obvious that the same is not to be restricted thereto, but is broad enough to cover all structures coming within the scope of the annexed claim.
What I claim is:
A tube for a heat exchange device wherein there are a plurality of spaced fin plates embracing the periphery of It has been found that the the tube; said tube having a central cylindrical fluid passage and radially extending hollow ribs arranged in a matching pattern around the cylindrical passage, the ends of said hollow ribs terminating inwardly of the outer edges of said fin plates, each of the said fin plates comprising a relatively flat sheet of metal having a centrally located round hole therethrough and slots extending radially from the hole, the relatively thin edges of said sheet at said hole and said slots closely and frictionally engaging the periphery of said tube and providing the sole support ofsaid tube, each of said plates having a plurality of corners, and each of said corners being located radially outwardly of a rib; wherein expansion of said ribs will cause said tube to tightly engage the edges of said hold and slots in said fin even when deterioration of the metal occurs and wherein the rib pressures occur at the corners of the plates for maximum strength and efiective thermal distribution.
References Cited by the Examiner UNITED STATES PATENTS 2,434,519 1/1948 Raskin ll l0 FOREIGN PATENTS 1,186,655 8/ 1959 France.
FREDERICK L. MATTESON, JR., Primary Examiner.
CHARLES SUKALO, Examiner.
US425116A 1965-01-08 1965-01-08 Heat exchange devices Expired - Lifetime US3251410A (en)

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US425116A US3251410A (en) 1965-01-08 1965-01-08 Heat exchange devices
BE677693D BE677693A (en) 1965-01-08 1966-03-11
FR53375A FR1471112A (en) 1965-01-08 1966-03-14 Heat exchange elements

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543069A (en) * 1967-06-29 1970-11-24 Philips Corp Stress-reduced cooling fin assembly for a power klystron
FR2510901A1 (en) * 1981-08-04 1983-02-11 Martel Catala & Cie Ets Multi-tube evaporator - employs tubes crimped at one end to form flow restriction
EP0113344A1 (en) * 1982-07-16 1984-07-18 Babcock & Wilcox Co Heat exchangers and methods of construction thereof.
WO2009068979A1 (en) * 2007-11-30 2009-06-04 Bundy Refrigeration Gmbh Heat transfer tube
US20130000878A1 (en) * 2010-05-22 2013-01-03 Werner Janzer Method for producing a heat exchanger and heat exchanger
WO2013005617A1 (en) * 2011-07-01 2013-01-10 カヤバ工業株式会社 Hydrogen storage vessel
CN105135927A (en) * 2015-09-01 2015-12-09 赵炜 Heat-dissipation tube group with arc-shaped channel combination
CN105135926A (en) * 2015-09-01 2015-12-09 赵炜 Radiating tube for triangular duct
CN105157449A (en) * 2015-10-13 2015-12-16 赵炜 Four-passageway arc-shaped cooling tube bundle
CN105157463A (en) * 2015-09-01 2015-12-16 赵炜 Heat-dissipating tube set with two circular arc shaped channels
CN105180701A (en) * 2015-10-13 2015-12-23 赵炜 Arc-shaped radiating tube set arranged in corner
CN105241276A (en) * 2015-10-13 2016-01-13 赵炜 Triangular radiating pipe set placed in wall corner
CN105371681A (en) * 2015-10-13 2016-03-02 赵炜 Four-channel triangular radiating tube set
CN105973033A (en) * 2015-09-01 2016-09-28 赵炜 Heat sink with arc-shaped heat dissipating tube
US20170314871A1 (en) * 2016-04-29 2017-11-02 Intel Corporation Wickless capillary driven constrained vapor bubble heat pipes for application in heat sinks
US20180164046A1 (en) * 2016-12-14 2018-06-14 Noritz Corporation Heat exchanger, hot water apparatus, and method of manufacturing heat exchanger
US11774187B2 (en) * 2018-04-19 2023-10-03 Kyungdong Navien Co., Ltd. Heat transfer fin of fin-tube type heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434519A (en) * 1942-04-18 1948-01-13 Raskin Walter Heat exchange conduit with a spiral fin having a capillary groove
FR1186655A (en) * 1957-11-22 1959-08-31 Improvements to radiators, batteries and other heat exchanger devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434519A (en) * 1942-04-18 1948-01-13 Raskin Walter Heat exchange conduit with a spiral fin having a capillary groove
FR1186655A (en) * 1957-11-22 1959-08-31 Improvements to radiators, batteries and other heat exchanger devices

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543069A (en) * 1967-06-29 1970-11-24 Philips Corp Stress-reduced cooling fin assembly for a power klystron
FR2510901A1 (en) * 1981-08-04 1983-02-11 Martel Catala & Cie Ets Multi-tube evaporator - employs tubes crimped at one end to form flow restriction
EP0113344A1 (en) * 1982-07-16 1984-07-18 Babcock & Wilcox Co Heat exchangers and methods of construction thereof.
EP0113344A4 (en) * 1982-07-16 1984-11-23 Babcock & Wilcox Co Heat exchangers and methods of construction thereof.
WO2009068979A1 (en) * 2007-11-30 2009-06-04 Bundy Refrigeration Gmbh Heat transfer tube
US20100314092A1 (en) * 2007-11-30 2010-12-16 Bundy Refreigeration GmbH Heat transfer tube
US20130000878A1 (en) * 2010-05-22 2013-01-03 Werner Janzer Method for producing a heat exchanger and heat exchanger
WO2013005617A1 (en) * 2011-07-01 2013-01-10 カヤバ工業株式会社 Hydrogen storage vessel
JP2013015174A (en) * 2011-07-01 2013-01-24 Kyb Co Ltd Hydrogen storage vessel
CN103620293A (en) * 2011-07-01 2014-03-05 萱场工业株式会社 Hydrogen storage vessel
EP2728244A4 (en) * 2011-07-01 2015-03-11 Kayaba Industry Co Ltd Hydrogen storage vessel
CN103620293B (en) * 2011-07-01 2015-11-25 萱场工业株式会社 Hydrogen storage vessel
US9464627B2 (en) 2011-07-01 2016-10-11 Kyb Corporation Hydrogen storage container
CN105135927A (en) * 2015-09-01 2015-12-09 赵炜 Heat-dissipation tube group with arc-shaped channel combination
CN106091781B (en) * 2015-09-01 2018-06-26 赵炜 A kind of Gothic channel heat radiator
CN105157463A (en) * 2015-09-01 2015-12-16 赵炜 Heat-dissipating tube set with two circular arc shaped channels
CN105973033B (en) * 2015-09-01 2018-06-22 赵炜 A kind of radiator of arc-shaped heat-dissipating pipe
CN106052459B (en) * 2015-09-01 2018-06-22 赵炜 A kind of arc-shaped heat-dissipating pipe of augmentation of heat transfer
CN106123665A (en) * 2015-09-01 2016-11-16 赵炜 A kind of circular arc radiating tube of augmentation of heat transfer structure optimization
CN105973033A (en) * 2015-09-01 2016-09-28 赵炜 Heat sink with arc-shaped heat dissipating tube
CN105135926A (en) * 2015-09-01 2015-12-09 赵炜 Radiating tube for triangular duct
CN106091780A (en) * 2015-09-01 2016-11-09 赵炜 The circular arc radiating tube that fin pitch changes from rule
CN106052461A (en) * 2015-09-01 2016-10-26 赵炜 Circular arc-shaped radiating tube with optimized size and structure
CN106052459A (en) * 2015-09-01 2016-10-26 赵炜 Circular arc-shaped radiating tube capable of strengthening heat transfer
CN106091783A (en) * 2015-09-01 2016-11-09 赵炜 The circular arc radiating tube of fin width rule change
CN106091781A (en) * 2015-09-01 2016-11-09 赵炜 A kind of Gothic channel heat radiator
CN105973032A (en) * 2015-10-13 2016-09-28 赵炜 Four-channel circular arc-shaped radiator
CN105180701A (en) * 2015-10-13 2015-12-23 赵炜 Arc-shaped radiating tube set arranged in corner
CN105241276B (en) * 2015-10-13 2017-01-25 赵炜 Triangular radiating pipe set placed in wall corner
CN105371681B (en) * 2015-10-13 2017-01-25 赵炜 Four-channel triangular radiating tube set
CN105371681A (en) * 2015-10-13 2016-03-02 赵炜 Four-channel triangular radiating tube set
CN105973032B (en) * 2015-10-13 2018-03-20 青岛酒店管理职业技术学院 A kind of four-way circular arc radiator
CN105157449A (en) * 2015-10-13 2015-12-16 赵炜 Four-passageway arc-shaped cooling tube bundle
CN105241276A (en) * 2015-10-13 2016-01-13 赵炜 Triangular radiating pipe set placed in wall corner
US20170314871A1 (en) * 2016-04-29 2017-11-02 Intel Corporation Wickless capillary driven constrained vapor bubble heat pipes for application in heat sinks
US10694641B2 (en) 2016-04-29 2020-06-23 Intel Corporation Wickless capillary driven constrained vapor bubble heat pipes for application in electronic devices with various system platforms
US10917994B2 (en) 2016-04-29 2021-02-09 Intel Corporation Wickless capillary driven constrained vapor bubble heat pipes for application in rack servers
US11324139B2 (en) 2016-04-29 2022-05-03 Intel Corporation Wickless capillary driven constrained vapor bubble heat pipes
US20180164046A1 (en) * 2016-12-14 2018-06-14 Noritz Corporation Heat exchanger, hot water apparatus, and method of manufacturing heat exchanger
US10408549B2 (en) * 2016-12-14 2019-09-10 Noritz Corporation Heat exchanger, hot water apparatus, and method of manufacturing heat exchanger
US11774187B2 (en) * 2018-04-19 2023-10-03 Kyungdong Navien Co., Ltd. Heat transfer fin of fin-tube type heat exchanger

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