EP0612396B1 - In tank oil cooler - Google Patents
In tank oil cooler Download PDFInfo
- Publication number
- EP0612396B1 EP0612396B1 EP92923263A EP92923263A EP0612396B1 EP 0612396 B1 EP0612396 B1 EP 0612396B1 EP 92923263 A EP92923263 A EP 92923263A EP 92923263 A EP92923263 A EP 92923263A EP 0612396 B1 EP0612396 B1 EP 0612396B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- turbulizer
- plates
- dimples
- heat exchanger
- 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
Links
Images
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
- F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
-
- 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
- F28D9/0031—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 paired plates touching each other
- F28D9/0043—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0089—Oil coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
- F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
Definitions
- This invention relates to a method of making a heat exchanger, and to heat exchangers, and in particular to automotive oil coolers which are located inside other heat exchangers, such as automotive radiators.
- EP-A-384612 shows a plurality of stacked plate pairs having turbulizers located therebetween.
- the plate pairs in EP-A-384612 have first and second plates located back to back.
- the first plate has a planar central portion, a raised peripheral edge portion located above and in a plane parallel to the central portion, an intermediate portion between the central and edge portions, and opposed end bosses located below and in a plane parallel to the central portion.
- the second plate of each plate pair has a peripheral edge portion joined to the first plate peripheral edge portion, a central portion spaced from the first plate central portion, an intermediate portion between the central and edge portions and opposed end bosses located above and in a plane parallel to the second plate central portion.
- the first and second plate central portions have a planar expanded metal turbilizer located therebetween and a plurality of spaced-apart, outwardly disposed dimples formed therein, the dimples extending equidistant with the end bosses.
- the dimples and end bosses are joined together.
- Each plate pair has inlet and outlet openings for the flow of fluid therethrough past the turbulizer.
- a difficulty with this prior art oil cooler is that peripheral tabs are required to be crimped over to join the peripheral edge portions and form plate pair subassemblies prior to brazing the assembly together, otherwise poor joints could result between the turbulizer and the plates and between the plate peripheral edges, and this in tum results in the oil cooler not being able to withstand high enough internal pressures.
- This prior crimping step increases the cost of manufacture of the oil coolers, both in the material and time required for assembly.
- the present invention results in a plate type heat exchanger which is less expensive to produce and more effective per volume of radiator occupied, and yet is strong enough to withstand the high oil pressures that are frequently encountered in such engine oil or transmission fluid cooling systems.
- the inventive method is using the idea of having the plate peripheral edge portions separated and not mechanically joined prior to the brazing process.
- the peripheral edge portions are then melted together during the brazing process and this accommodates any misalignment and dimensional tolerance variations in the mating components.
- the peripheral edge portions are separated by placing a turbulizer in the hollow spaced between face-to-face brazing clad plates in each plate pair; the turbulizer being of a thickness equal to the distance between the plate planar central portions without the cladding layers formed thereon and thus the raised peripheral edges are separated.
- the plates are heated to melt the cladding layers causing the turbulizer to be embedded in the cladding layers and the peripheral edges to be drawn and melted together to form a fluid tight assembly.
- Heat exchanger 10 is formed of a plurality of face-to-face plate pairs 12 as described in detail below with reference to Figure 2.
- a top plate pair 14 has a smooth top plate 16 and a bottom plate pair 18 has a smooth bottom plate 20, although top and bottom plates 16, 20 could be dimpled as shown in Figure 2 if desired.
- Heat exchanger 10 also has threaded nipples 22 swaged in place in suitable circular openings in top plate 16.
- One nipple 22 serves as an inlet and the other nipple 22 serves as an outlet for the flow of oil, such as engine oil or transmission fluid through heat exchanger 10.
- Plate pair 12 includes a first or bottom plate 24 and a second or top plate 26.
- First plate 24 has a planar central portion 28, and a raised peripheral, co-planar edge portion 30 which extends above or is located in a plane above central portion 28.
- First plate 24 also includes opposed, co-planar end bosses 32 extending below or located at a lower level than central portion 28.
- first and second plates 24, 26 are identical, so the terms "below” and “above” with reference to the central portion 28 of first plate 24 would, of course, be reversed with reference to the central portion 28 of second plate 26 as seen in Figure 2.
- the ends of plates 16, 20, 24 and 26 are rounded and end bosses 32 of plates 24, 26 are formed with "D"-shaped openings 34, although any shaped opening could be used if desired.
- the "D"-shaped openings 34 have an opening edge portion 35 located around "D"-shaped openings 34.
- smooth top plate 16 has circular openings to accommodate nipples 22.
- the smooth bottom plate 20 has no openings formed therein.
- First and second plates 24, 26 are formed with a plurality of spaced-apart dimples 36 formed therein. With reference to first plate 24, dimples 36 extend below the central portion 28 equidistant or to the same planar level as end bosses 32, so that when two of the plates 24, 26 are located back-to-back as seen best in Figure 3, the respective dimples 36 and end bosses 32 are joined together along a common plane.
- a turbulizer 38 is located inside each face-to-face plate pair 12, including top and bottom plate pairs 14, 18.
- Turbulizer 38 is a strip of expanded metal. The preferred configuration is parallel rows shaped in a sinusoidal, staggered configuration, although other configurations could be used as desired.
- the length of turbulizer 38 corresponds with the length of the plate central portions 28, and the width of turbulizer 38 corresponds with the distance between peripheral edge portions 30.
- the thickness of turbulizer 38 is such that after the plate pairs are assembled and heat exchanger 10 is joined together, such as by brazing, the plate central portions 28 are joined to and in good thermal contact with turbulizer 38, as discussed further below.
- Dimples 36 are spaced uniformly over the plate central portions 28.
- One of the primary functions of dimples 36 is to support the plate central portions 28 and prevent these central portions from sagging when the plates are heated to brazing temperatures. Central portions 28 must be kept flat and in full contact with turbulizer 38 during the brazing process in order to obtain good thermal contact between the turbulizer and the plates.
- Another function of the dimples is to cause some turbulence in the coolant thereby increasing the heat transfer capabilities of the heat exchanger.
- dimples 36 maintain the back-to-back plates in spaced apart relation so that the coolant would have an effective path between the back-to-back plates.
- the height of dimples 36 should be optimized in that the dimples should be tall enough to allow the coolant to flow between the back-to-back plates but not too tall because of the overall size of heat exchanger 10 should be minimized where possible.
- Dimples 36 preferably are large enough to result in flat top surfaces to give a good joint between mating dimples 36. As seen best in Figures 3 and 4, the radius of the shoulders in the dimples should be such that sharp corners should be avoided or the dimples could break out as a result of high pressures in heat exchanger 10.
- Dimples 36 should also not be too large in diameter, because the surface area of central portion 28 occupied by dimples 36 is area that is not in contact with turbulizer 38 and this detracts from the heat transfer efficiency of heat exchanger 10. It will be apparent to those skilled in the art that the number and size of the dimples 36 should be chosen so that sufficient strength and structural support for the plate central portions is provided during the brazing process, and so that the gain in heat transfer efficiency through turbulence in the coolant is balanced against loss of heat transfer efficiency by making the dimples too numerous or too large.
- plates 24, 26 may be formed with inner tabs 42 extending transversely from opening edge portion 35.
- Inner tabs 42 are located at only one end of each plate so that upon assembly, inner tabs 42 on one plate such as first plate 24 are crimped over the opening edge portion 35 of the mating plate 26, when the plates are in a back-to-back arrangement to form a back-to-back plate pair 44. This prevents the plates of each back-to-back plate pair 44 from moving longitudinally or transversely relative to each other.
- Inner tabs 42 are not necessary, however, and may be eliminated if alignment of the plate pairs is not a problem.
- plates 24, 26 are formed with peripheral tabs 40 at opposed ends.
- Peripheral tabs 40 are located at respective diametrically opposed “corners” of each plate, so that upon assembly, the peripheral tabs 40 on one plate, such as first plate 24, are crimped over the peripheral edge portion 30 of the mating plate, such as second plate 26, when the plates are in face-to-face arrangement to form face-to-face plate pair 12 as seen best in Figure 1. This prevents the plates of each face-to-face plate pair 12 from moving longitudinally or transversely relative to each other.
- peripheral tabs 40 are not necessary and may be eliminated if alignment of the plates is not a problem.
- the inner tabs 42 can be used to maintain the first and second plates, of the back-to-back plate pairs in alignment, without crimping over the inner tabs 42.
- the peripheral tabs 40 can be used to maintain the first and second plates of the face-to-face plate pair in alignment without crimping over the peripheral tabs 40.
- the peripheral tabs 40 and the inner tabs 42 may be used to align the stacked plates or to mechanically attach the plates as desired.
- the heat exchanger can be further modified by eliminating the peripheral tabs 40 and inner tabs 42 and stacking plates in the pattern described above and shown in Figure 3.
- Nipples 22 and turbulizer 38 are formed of aluminum alloys, and plates 16, 20, 24 and 26 are formed of brazing clad aluminum, which is aluminum that has a lower melting point cladding or aluminum brazing alloy layer 50 on the outer surfaces, as seen best in Figures 5, 7 and 8 the cladding layers 50 are each about 8 to 10 per cent of the thickness of the plate.
- the thickness of turbulizer 38 is generally equal to the distance between the first and second plate central portions 28 without cladding layers 50. In other words, the thickness of turbulizer 38 is greater than the distance between the opposed cladding layers 50 of the first and second plate central portions 28 after final assembly. The reason for this is that as these cladding layers 50 melt during the brazing process, all of the high areas of turbulizer 38 are embedded in the cladding layers 50 and turbulizer 38 is brazed to the plate central portions 28 with good thermal heat transfer and minimum drag or pressure drop as the oil flows through or past turbulizer 38, as will be described further below.
- the assembly of heat exchanger 10 starts by arranging the plates 24, 26 face-to-face or back-to-back as desired, as seen best in Figure 2, so that the "D"-shaped openings 34 and the respective peripheral edge portions 30 are in registration. If inner tabs 42 are used, these tabs may be first crimped over to form back-to-back plate pairs 44. A turbulizer 38 is then inserted into the hollow space between,the central portions 28 of each face-to-face plate pair 12. If peripheral tabs 40 are used, these may then be crimped over the peripheral edge portions 30 of the respective mating plate. Alternatively several of the assembled plate pairs 12 may be formed with turbulizers in them and then stacked together, in which case tabs 42 would not be crimped over or used at all. The particular method or sequence of stacking plates 24, 26 together does not matter, the result is a plurality of stacked plate pairs as illustrated in Figures 2 and 7.
- top plate pair 14 is then formed by swaging nipples 22 onto smooth top plate 16 and stacking this on top of one of the plates as shown in Figures 1 and 3.
- Bottom plate pair 18 is then formed using a smooth bottom plate 20 located below the bottom plate 26 as shown in Figures 3 and 4.
- turbulizer 38 typically is not longitudinally straight, but has a slight transverse camber in it because the metal from which it is formed usually comes in rolled form. This causes the corners 52 and the central portions 54 to overlap or ride into the radius or intermediate portion 29 between central portion 28 and peripheral edge 30. However, cladding layers 50 and these radii themselves accommodate this overlap in the brazing process as described next below.
- the entire heat exchanger is assembled, it is then placed into a brazing furnace using a suitable fixture to maintain the orientation of the assembly, to braze together simultaneously all mating surfaces prior to entering the brazing furnace, the stacked plates appear as shown in Figure 7, with about a 0.3 m.m. gap between the peripheral edge portions 30 due to the thickness of turbulizer 38 as discussed above.
- the stacked plates are squeezed together and as the cladding layers 50 melt, peripheral edges 30 come together accommodating any misalignment and dimensional intolerances giving upon cooling a fluid tight assembly.
- nipples 22 serving as inlets and outlets for the oil.
- one nipple 22 could be positioned in the top plate 16 and the other nipple 22 in the bottom plate 20.
- a central plate with no opening at that end could be positioned in the middle portion of heat exchanger 10.
- Heat exchanger 10 can be made from other materials than aluminum, such as stainless steel or brass. In the case of stainless steel, either a brazing cladding layer of copper or thin copper sheets or shims could be used.
- cladding layer is intended to include any type material to join respective components, such as a coating or metal deposit, a discreet or separate layer of brazing material, solder or even a suitable adhesive. Obviously, any number of plate pairs could be used. Soft soldering may also be used instead of brazing, however in general, this produces a weaker connection and therefore may not meet the strength requirements.
- the length of the plates can be varied simply by repeating longitudinally the dimple diameter and spacing described above. If both the length and the width of the heat exchanger is to be varied, the diameter and spacing of the dimples may have to be varied slightly in keeping with the parameters discussed above.
- the oil cooler of the present invention is a relatively high efficiency heat exchanger which is structurally strong with relatively low pressure drop.
Abstract
Description
- Figure 1
- is a perspective view of a preferred embodiment of an in tank oil cooler according to the present invention;
- Figure 2
- is an exploded perspective view of a subassembly of the oil cooler of Figure 1;
- Figure 3
- is a partial sectional view taken along lines 3-3 of Figure 1 and showing an altemate embodiment;
- Figure 4
- is a sectional view taken along lines 4-4 of Figure 1;
- Figure 5
- is an enlarged sectional view taken along lines 5-5 of Figure 2;
- Figure 6
- is an enlarged plan view taken along lines 6-6 of Figure 2;
- Figure 7
- is a partial sectional view taken along lines 7-7 of Figure 6 but showing a plurality of stacked plate pairs prior to brazing; and
- Figure 8
- is a partial sectional view similar to Figure 7 but showing the stacked plate pairs after brazing.
Claims (20)
- A method of making a heat exchanger comprising:providing a plurality of plates (24, 26), each plate having a planar central portion (28), a raised, peripheral edge portion (30) located above and in a plane parallel to the central portion, and opposed end bosses (32) located below and in a plane parallel to the central portion, the end bosses having inlet and outlet openings (34) formed therein;arranging said plates into a face-to-face pair (12) having mating peripheral edge portions (30) and a hollow space therebetween;inserting a turbulizer (38) into said hollow space, the turbulizer being of such thickness that the mating peripheral edge portions (30) are spaced apart;heating and partially melting the plate pair (12) while said mating peripheral edge portions (30) are still spaced apart; compressing the turbulizer by pressing the plate pair (12) together thereby melting the turbulizer (38) into said plates drawing the mating peripheral edge portions together; andjoining contacting areas of the plates and turbulizer after the mating peripheral edge portions are drawn together to form a fluid tight assembly.
- A method as claimed in claim 1 wherein the step of compressing is done by squeezing together the planar central portions (28).
- A method as claimed in claim 1 or 2 and further comprising the steps of providing a cladding layer (50) on the plates, melting the cladding layer while compressing the turbulizer (38) and embedding the turbulizer in the cladding layer until the peripheral edge portions (30) come into contact.
- A method as claimed in claim 2 or 3 wherein the squeezing step is done by providing said central portions (28) with a plurality of spaced-apart, outwardly disposed dimples (36), the dimples extending equidistant with the end bosses (32); and squeezing one plate pair between two adjacent plate pairs positioned in a back-to-back arrangement, the dimples on the adjacent plate pairs being in alignment and transmitting compressive forces therebetween.
- A method as claimed in any one of the preceding claims and further comprising the steps of assembling a plurality of said plate pairs (12) into a stack with said inlet and outlet openings (34) in registration, and joining said plate pairs together in a fluid-tight assembly.
- A method as claimed in any one of the preceding claims and further comprising the step prior to compressing and heating the plate pair of assembling a plurality of said plate pairs (12) into a stack with the inlet and outlet openings (34) in registration, and then simultaneously heating and compressing all of the stacked plate pairs.
- A method as claimed in any one of the preceding claims wherein the plates are formed of brazing clad aluminium, and wherein the step of joining is done by furnace brazing.
- A method as claimed in any one of the preceding claims and further comprising the step, prior to heating and compressing all of the stacked plate pairs, of adding a top plate pair (14) having a smooth top plate (16) and a bottom plate pair (18) having a smooth bottom plate (20) to the stack of plate pairs.
- A method as claimed in claim 8 and further comprising the step of providing inlet and outlet nipples (22) on one of the smooth top and bottom plates (14, 18), said nipples having inlet and outlet openings communicating with respective inlet and outlet openings (34) of the plate pairs.
- A heat exchanger comprising:a plurality of stacked plates arranged in face-to-face pairs (12), each of said face-to-face pairs including first and second plates (24, 26);the first plate (24) having a planar central portion (28), a raised peripheral edge portion (30) located above and in a plane parallel to the central portion (28), an intermediate portion (29) between the central and edge portions, and opposed end bosses (32) located below and in a plane parallel to the central portion;the second plate (26) of each face-to-face plate pair (12) having a peripheral edge portion (30) joined to said first plate peripheral edge portion, a central portion (28) spaced from the first plate central portion, an intermediate portion (29) between the central and edge portions, and opposed end bosses (32) located above and in a plane parallel to the second plate central portion (28);a planar expanded metal turbulizer (38) located between the first and second plates (24, 26) of each face-to-face plate pair (12) and said turbulizer (38) having high areas;the first and second plate central portions (28) having a plurality of spaced-apart, outwardly disposed dimples (36) formed therein, the dimples extending equidistant with the end bosses (32);the first plate (24) of one plate pair (12) being located back-to-back with the second plate (26) of an adjacent plate pair, the respective dimples (36) and end bosses (32) being joined together; andeach plate pair defining inlet and outlet openings (34) for the flow of fluid through the plate pair (12) past the turbulizer (38);wherein the first and second plate central portions (28) have opposed cladding layers (50) formed thereon,
and wherein the thickness of the turbulizer (38) is equal to the distance between the first and second plate central portions (28) without the cladding layers generally over all of the high areas of the turbulizer except for the areas of the dimples. - A heat exchanger as claimed in claim 10 wherein the turbulizer (38) is formed of a plurality of parallel rows of metal disposed in a sinusoidal, staggered arrangement.
- A heat exchanger as claimed in claim 10 or 11 wherein the turbulizer (38) is generally the same transverse width as the distance between the plate intermediate portions (29).
- A heat exchanger as claimed in any one of claims 10 through 12 wherein the plates (24, 26) are formed of aluminium having a brazing cladding layer (50) formed thereon.
- A heat exchanger as claimed in claim 13 wherein the cladding layer (50) is 10 percent of the thickness of the plate (24, 26).
- A heat exchanger as claimed in any one of claims 10 through 14 wherein the turbulizer (38) is formed of aluminium.
- A heat exchanger as claimed in any one of claims 10 through 15 wherein the dimples (36) are spaced uniformly over the plate central portions (28).
- A heat exchanger as claimed in any one of claims 10 through 16 wherein the dimples (36) are dimensioned such that the area of the dimples not in contact with the turbulizer (38) is minimized so as not to detract materially from the heat transfer between the turbulizer (38) and the plate central portions.
- A heat exchanger as claimed in any one of claims 10 through 17 wherein the dimples are formed with generally flat tops.
- A heat exchanger as claimed in any one of claims 10 through 18 wherein the dimples are arranged symmetrically about the longitudinal and transverse axes of the plates so that when two plate pairs are positioned back-to-back the dimples on the first plate will be in alignment with the dimples on the second plate.
- A heat exchanger as claimed in any one of claims 10 through 19 wherein said inlet and outlet openings are formed in the respective opposed end bosses of each plate, so that in a stack of back-to-back plate pairs all inlet openings are in alignment and all outlet openings are in alignment.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79243591A | 1991-11-15 | 1991-11-15 | |
US792435 | 1991-11-15 | ||
PCT/CA1992/000496 WO1993010415A1 (en) | 1991-11-15 | 1992-11-13 | In tank oil cooler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0612396A1 EP0612396A1 (en) | 1994-08-31 |
EP0612396B1 true EP0612396B1 (en) | 1998-01-07 |
Family
ID=25156874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92923263A Expired - Lifetime EP0612396B1 (en) | 1991-11-15 | 1992-11-13 | In tank oil cooler |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0612396B1 (en) |
JP (1) | JP2930417B2 (en) |
AU (1) | AU670760B2 (en) |
CA (1) | CA2123701C (en) |
DE (1) | DE69223986T2 (en) |
WO (1) | WO1993010415A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3763993B2 (en) * | 1999-03-31 | 2006-04-05 | 株式会社マーレ フィルターシステムズ | Multi-plate oil cooler cooling element |
US6341649B1 (en) | 2001-02-12 | 2002-01-29 | Delphi Technologies, Inc. | Aluminum plate oil cooler |
KR100537666B1 (en) * | 2003-06-27 | 2005-12-20 | 현대자동차주식회사 | Oil-cooler in automobile |
DE102005054045A1 (en) * | 2005-11-12 | 2007-05-16 | Modine Mfg Co | Brazed plate heat exchanger |
JP6107017B2 (en) * | 2012-09-18 | 2017-04-05 | ダイキン工業株式会社 | Heat exchanger and method of manufacturing heat exchanger |
CN104576911B (en) * | 2015-01-20 | 2017-12-08 | 江苏和平动力机械有限公司 | New cooled wafer component |
JP2022001817A (en) * | 2020-06-22 | 2022-01-06 | パナソニックIpマネジメント株式会社 | Heat exchanger and manufacturing method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB904498A (en) * | 1960-02-08 | 1962-08-29 | Borg Warner | Heat exchanger and method of making same |
FR1353580A (en) * | 1963-01-15 | 1964-02-28 | Chausson Usines Sa | Heat exchanger manufacturing process and resulting product |
DE68914736T2 (en) * | 1988-07-14 | 1994-07-28 | Showa Aluminium Co Ltd | Aluminum heat exchanger. |
CA1313182C (en) * | 1989-02-24 | 1993-01-26 | Allan K. So | In tank oil cooler |
-
1992
- 1992-11-13 DE DE69223986T patent/DE69223986T2/en not_active Expired - Lifetime
- 1992-11-13 JP JP5508845A patent/JP2930417B2/en not_active Expired - Fee Related
- 1992-11-13 EP EP92923263A patent/EP0612396B1/en not_active Expired - Lifetime
- 1992-11-13 AU AU29207/92A patent/AU670760B2/en not_active Ceased
- 1992-11-13 CA CA002123701A patent/CA2123701C/en not_active Expired - Lifetime
- 1992-11-13 WO PCT/CA1992/000496 patent/WO1993010415A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE69223986T2 (en) | 1998-06-04 |
WO1993010415A1 (en) | 1993-05-27 |
AU670760B2 (en) | 1996-08-01 |
JPH07504967A (en) | 1995-06-01 |
JP2930417B2 (en) | 1999-08-03 |
DE69223986D1 (en) | 1998-02-12 |
AU2920792A (en) | 1993-06-15 |
CA2123701A1 (en) | 1993-05-27 |
CA2123701C (en) | 1999-06-08 |
EP0612396A1 (en) | 1994-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5538077A (en) | In tank oil cooler | |
US5369883A (en) | Method for making an in tank oil cooler | |
US4917180A (en) | Heat exchanger with laminated header and tank and method of manufacture | |
CA2142233C (en) | Heat exchanger with oblong grommetted tubes and locating plates | |
US5036911A (en) | Embossed plate oil cooler | |
US5172761A (en) | Heat exchanger tank and header | |
US4592414A (en) | Heat exchanger core construction utilizing a plate member adaptable for producing either a single or double pass flow arrangement | |
US5025855A (en) | Condenser for use in a car cooling system | |
US5320165A (en) | High pressure, long life, aluminum heat exchanger construction | |
GB2089692A (en) | Manufacturing heat exchangers | |
CA1313182C (en) | In tank oil cooler | |
US6364006B1 (en) | Beaded plate for a heat exchanger and method of making same | |
US20030131979A1 (en) | Oil cooler | |
EP0612396B1 (en) | In tank oil cooler | |
US20020057941A1 (en) | Connection structure between a pipe and a tube for use in a heat exchanger | |
US5373895A (en) | Heat exchanger | |
US6209629B1 (en) | Beaded plate for a heat exchanger and method of making same | |
US6571866B2 (en) | Heat exchanger and method of making same | |
KR20030051213A (en) | Oil cooler | |
JPH0719779A (en) | Manufacture of heat exchanger core | |
JP7471392B2 (en) | Heat exchanger header, heat exchanger, method for manufacturing a heat exchanger header, and method for manufacturing a heat exchanger | |
US5396949A (en) | Mesh fin type heat exchanger and method of making the same | |
EP0564449A1 (en) | Heat exchanger | |
US5881803A (en) | Heat exchanger construction | |
JPH01217195A (en) | Heat exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19940613 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 19941019 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT SE |
|
REF | Corresponds to: |
Ref document number: 69223986 Country of ref document: DE Date of ref document: 19980212 |
|
ITF | It: translation for a ep patent filed |
Owner name: STUDIO TORTA S.R.L. |
|
ET | Fr: translation filed | ||
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
26 | Opposition filed |
Opponent name: AUTOKUEHLER GMBH & CO. KG Effective date: 19981006 |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBF | Reply of patent proprietor to notice(s) of opposition |
Free format text: ORIGINAL CODE: EPIDOS OBSO |
|
PLBL | Opposition procedure terminated |
Free format text: ORIGINAL CODE: EPIDOS OPPC |
|
PLBM | Termination of opposition procedure: date of legal effect published |
Free format text: ORIGINAL CODE: 0009276 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: OPPOSITION PROCEDURE CLOSED |
|
27C | Opposition proceedings terminated |
Effective date: 20000901 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20051125 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061114 |
|
EUG | Se: european patent has lapsed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20081127 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081117 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081128 Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091127 Year of fee payment: 18 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091113 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100730 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091113 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69223986 Country of ref document: DE Effective date: 20110601 Ref country code: DE Ref legal event code: R119 Ref document number: 69223986 Country of ref document: DE Effective date: 20110531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110531 |