US20120325446A1 - Oil cooler - Google Patents
Oil cooler Download PDFInfo
- Publication number
- US20120325446A1 US20120325446A1 US13/336,368 US201113336368A US2012325446A1 US 20120325446 A1 US20120325446 A1 US 20120325446A1 US 201113336368 A US201113336368 A US 201113336368A US 2012325446 A1 US2012325446 A1 US 2012325446A1
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- US
- United States
- Prior art keywords
- core plate
- oil
- base wall
- core
- circumferential
- 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.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—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
- F28D9/005—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 the plates having openings therein for both heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0012—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 apparatus having an annular form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—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
- F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—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
- F28D9/0056—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 with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- 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
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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
- F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
- F28F2280/06—Adapter frames, e.g. for mounting heat exchanger cores on other structure and for allowing fluidic connections
Definitions
- the present invention relates to a so-called stacked multi-plate oil cooler that is used for cooling a vehicular oil, for instance, a lubricating oil in an internal combustion engine or a working oil in an automatic transmission.
- Japanese Patent Application Unexamined Publication No. 11-351778 discloses an oil cooler including a plurality of first plates and a plurality of second plates which are alternately stacked.
- a cooling water chamber and an oil chamber are alternately formed between the first plate and the second plate in a direction of stacking the plates.
- the oil chambers adjacent to each other in the direction of stacking the plates are communicated with each other through a pair of oil passages which are formed in the first plate and the second plate, respectively.
- the cooling water chambers adjacent to each other in the direction of stacking the plates are communicated with each other through a pair of cooling water passages which are formed in the first plate and the second plate, respectively.
- a part of each of the oil passages is closed by a given closing plate.
- a projection or a recess is formed on an outer circumferential periphery of a cylindrical wall of each of the closing plate and the first plate.
- the projection or the recess is arranged in a certain positional relationship to the oil passages and the cooling water passages.
- the recess is formed in such a manner as to cut out a portion of the outer circumferential periphery of the cylindrical wall of each of the closing plate and the first plate. Due to the thus formed recess, there will occur reduction in strength of the cylindrical wall in a position in which the recess is formed, and deterioration in anticorrosion property.
- an oil cooler including:
- the plurality of core plates each including a base wall and a circumferential wall formed along an entire outer periphery of the base wall, the circumferential wall being inclined relative to the base wall so as to outwardly extend from the entire outer periphery of the base wall, the circumferential walls of the core plates which are disposed adjacent to each other in a direction of stacking the core plates being bonded to each other, and
- the core plates include at least a first core plate and a second core plate that is different from the first core plate in construction, and the circumferential wall of the second core plate has a height being varied along a circumferential direction of the base wall, and the circumferential wall of the second core plate is partially higher than the circumferential wall of the first core plate.
- the oil cooler according to the first aspect of the present invention, wherein the height of the circumferential wall of the second core plate is continuously varied along the entire outer periphery of the base wall, and the circumferential wall of the second core plate has an upper end located on a plane.
- the oil cooler according to the first aspect of the present invention, wherein the base wall of the first core plate includes a pair of oil communication holes through which the oil passages are communicated with each other in the direction of stacking the core plates, and a pair of cooling water communication holes through which the cooling water passages are communicated with each other in the direction of stacking the core plates, the pair of oil communication holes being symmetrically arranged with respect to a center of the base wall,
- the circumferential wall of the first core plate has a constant height over the entire outer periphery of the base wall of the first core plate
- the base wall of the second core plate comprises one oil communication hole aligned with one of the pair of oil communication holes of the base wall of the first core plate, the base wall of the second core plate blocking a flow of oil passing through the other of the pair of oil communication holes of the base wall of the first core plate such that a direction of a flow of oil passing through the oil cooler is changed to a direction perpendicular to the direction of stacking the core plates.
- the oil cooler according to the present invention can serve for identifying a specific core plate on the basis of a difference in height of a peripheral wall between a plurality of core plates even after the core plates are stacked on each other. Further, a person who handles the oil cooler according to the present invention can be prevented from suffering an injury due to a configuration of the identifying portion of the core plate. Furthermore, the oil cooler according to the present invention can serve for suppressing reduction in strength of the specific core plate to be identified and deterioration of anticorrosion property.
- FIG. 1 is an exploded perspective view of an oil cooler according to a first embodiment of the present invention.
- FIG. 2 is a plan view of the oil cooler according to the first embodiment of the present invention.
- FIG. 3 is a sectional view of the oil cooler according to the first embodiment of the present invention, taken along line A-A shown in FIG. 2 .
- FIG. 4 is a perspective view of a second core plate used in the oil cooler according to the first embodiment of the present invention.
- FIG. 5 is a side view of the second core plate shown in FIG. 4 , when viewed from a direction of arrow B shown in FIG. 4 .
- FIG. 6 is a perspective view of the oil cooler according to the first embodiment of the present invention.
- FIG. 7 is a side view of the oil cooler according to the first embodiment of the present invention.
- FIG. 8 is a perspective view of a second core plate used in an oil cooler according to a second embodiment of the present invention.
- FIG. 9 is a side view of the second core plate shown in FIG. 8 , when viewed from a direction of arrow C shown in FIG. 8 .
- FIG. 10 is a side view of the oil cooler according to the second embodiment of the present invention.
- FIG. 11 is a perspective view of a second core plate used in an oil cooler according to a third embodiment of the present invention.
- FIG. 12 is a side view of the second core plate shown in FIG. 11 , when viewed from a direction of arrow D shown in FIG. 11 .
- FIG. 13 is a side view of the second core plate shown in FIG. 11 , when viewed from a direction of arrow E shown in FIG. 11 .
- FIG. 14 is a side view of the oil cooler according to the third embodiment of the present invention.
- FIG. 15 is a perspective view of a second core plate used in an oil cooler according to a fourth embodiment of the present invention.
- FIG. 16 is a side view of the second core plate shown in FIG. 15 , when viewed from a direction of arrow F shown in FIG. 15 .
- FIG. 17 is a side view of the oil cooler according to the fourth embodiment of the present invention.
- FIG. 18 is a perspective view of a second core plate used in the oil cooler according to a fifth embodiment of the present invention.
- FIG. 19 is a side view of the second core plate shown in FIG. 18 , when viewed from a direction of arrow G shown in FIG. 18 .
- FIG. 20 is side view of an oil cooler according to the fifth embodiment of the present invention.
- An oil cooler 100 according to a first embodiment of the present invention will be explained hereinafter by referring to FIG. 1 to FIG. 7 .
- FIG. 1 is an exploded perspective view of the oil cooler 100 .
- FIG. 2 is a plan view of the oil cooler 100 .
- FIG. 3 is a sectional view of the oil cooler 100 , taken along line A-A shown in FIG. 2
- the oil cooler 100 is entirely made of aluminum, for example.
- the oil cooler 100 includes a core module 1 that performs heat exchange between oil and cooling water, a top plate 2 that is mounted to a top surface of the core module 1 and has a relatively large thickness, and a bottom plate 3 mounted to a bottom surface of the core module 1 .
- the core module 1 includes four kinds of core plates 4 , 5 , 6 , 7 which basically have substantially the same shape and are stacked on each other in a predetermined order.
- the core module 1 also includes oil passages 8 and cooling water passages 9 alternately arranged in a direction of stacking the core plates 4 , 5 , 6 , 7 (hereinafter simply referred to as a core plate stacking direction).
- the core module 1 is formed by alternately stacking a first basic core plate 4 and a second basic core plate 5 on each other, each serving as a first core plate, except that the first basic core plates 4 disposed in two intermediate positions of the core module 1 in the core plate stacking direction are each replaced by a second core plate 6 .
- a third core plate 7 is disposed on an upper-most portion of the core module 1 .
- a generally rectangular fin plate 10 is disposed in the respective oil passages 8 .
- the first basic core plate 4 and the second basic core plate 5 have a generally rectangular shape in plan view.
- a pair of oil communication holes 11 are formed on one of diagonal lines of each of the first and second basic core plates 4 , 5 in a spaced relation to each other.
- a pair of cooling water communication holes 12 are formed on the other diagonal line of each of the first and second basic core plates 4 , 5 in a spaced relation to each other.
- the first basic core plate 4 includes a rectangular plate-shaped base wall 4 a, and an inclined circumferential wall 4 b that is formed along an entire outer periphery of the base wall 4 a and inclined so as to outwardly extend from an outer circumferential edge of the base wall 4 a.
- the base wall 4 a is formed with the pair of oil communication holes 11 , 11 and the pair of cooling water communication holes 12 , 12 which extend through the base wall 4 a.
- the base wall 4 a is also formed with a tapered sleeve portion 4 c that is formed along an entire periphery of a central through hole of the base wall 4 a so as to have a hollow frustoconical shape.
- the second basic core plate 5 includes a rectangular plate-shaped base wall 5 a, and an inclined circumferential wall 5 b that is formed along an entire outer periphery of the base wall 5 a and inclined so as to outwardly extend from an outer circumferential edge of the base wall 5 a.
- the base wall 5 a is formed with the pair of oil communication holes 11 , 11 and the pair of cooling water communication holes 12 , 12 which extend through the base wall 5 a.
- the base wall 5 a is also formed with a tapered sleeve portion 5 c that is formed along an entire periphery of a central through hole of the base wall 5 a so as to have a hollow frustoconical shape, and a plurality of frustoconical projections 14 upwardly projecting from the base wall 5 a.
- a boss 15 is formed along an entire periphery of the respective oil communication holes 11 , 11 .
- the boss 15 has a same height as that of the boss 13 of the first basic core plate 4 .
- the second core plate 6 has a generally rectangular shape in plan view.
- a pair of cooling water communication holes 12 , 12 are formed on one of diagonal lines of the second core plate 6 in a spaced relation to each other.
- One oil communication hole 11 is formed on the other diagonal line of the second core plate 6 .
- the second core plate 6 includes a rectangular plate-shaped base wall 6 a, and an inclined circumferential wall 6 b that is formed along an entire outer periphery of the base wall 6 a and inclined so as to outwardly extend from an outer circumferential edge of the base wall 6 a.
- the base wall 6 a is formed with the one oil communication hole 11 and the pair of cooling water communication holes 12 , 12 which extend through the base wall 6 a.
- the base wall 6 a is also formed with a tapered sleeve portion 6 c that is formed along an entire periphery of a central through hole of the base wall 6 a so as to have a hollow frustoconical shape.
- a boss 13 is formed along an entire periphery of the respective cooling water communication holes 12 , 12 .
- the boss 13 has a height equal to that of the boss 13 of the first basic core plate 4 .
- the base wall 6 a of the second core plate 6 in this embodiment has the same configuration as that of the base wall 4 a of the first basic core plate 4 except that one of the pair of oil communication holes 11 , 11 is closed.
- the third core plate 7 has a generally rectangular shape in plan view.
- a pair of cooling water communication holes 12 , 12 are formed on one of diagonal lines of the third core plate 7 in a spaced relation to each other.
- One oil communication hole 11 is formed on the other diagonal line of the third core plate 7 .
- the third core plate 7 includes a rectangular plate-shaped base wall 7 a, and an inclined circumferential wall 7 b that is formed along an entire outer periphery of the base wall 7 a and inclined so as to outwardly extend from an outer circumferential edge of the base wall 7 a.
- the base wall 7 a is formed with the oil communication hole 11 and the pair of cooling water communication holes 12 , 12 which extend through the base wall 7 a.
- the base wall 7 a is also formed with a tapered sleeve portion 7 c that is formed along an entire periphery of a central through hole of the base wall 7 a so as to have a hollow frustoconical shape. Owing to the positional relationship with the top plate 2 , the third core plate 7 has no boss formed around each of the oil communication hole 11 and the cooling water communication holes 12 , 12 .
- the circumferential walls 4 b, 5 b, 6 b, 7 b are overlapped and closely contacted with each other in the core plate stacking direction.
- the tapered sleeve portions 4 c, 5 c, 6 c, 7 c are stacked on each other to form a central oil passage 16 extending through the core module 1 in a vertical direction (i.e., in the core plate stacking direction).
- the central oil passage 16 is not directly communicated with the respective oil passages 8 formed between the core plates 4 , 5 , 6 , 7 .
- a circumferential portion that defines the respective cooling water communication holes 12 , 12 is raised from the respective base walls 4 a and 6 a so as to serve as the boss 13 projecting toward a side of the oil passages 8 .
- a circumferential portion that defines the respective oil communication holes 11 , 11 is raised from the base wall 5 a so as to serve as the boss 15 projecting toward a side of the cooling water passages 9 .
- a circumferential portion that defines the respective oil communication holes 11 of the first basic core plate 4 is contacted with the boss 15 formed around the respective oil communication holes 11 of the second basic core plate 5 disposed adjacent to the first basic core plate 4 .
- a circumferential portion that defines the respective oil communication holes 11 of the second core plate 6 is bonded to the boss 15 formed around the respective oil communication holes 11 of the second basic core plate 5 disposed adjacent to the second core plate 6 .
- the respective two oil passages 8 aligned with each other in the core plate stacking direction are communicated with each other through the oil communication holes 11 , and isolated from the cooling water passage 9 disposed between the respective two oil passages 8 . Accordingly, in the stacked condition, the respective oil passages 8 can be communicated with each other through the multiple oil communication holes 11 , and the oil is allowed to flow through the whole core module 1 in the vertical direction (i.e., in the core plate stacking direction).
- the base wall 6 a of the second core plate 6 blocks a flow of oil passing through the other of the pair of oil communication holes 11 of the base walls 4 a, 5 a of the core plates 4 , 5 in the vertical direction such that the oil is allowed to flow around rightward and leftward in a U-turn manner toward the one oil communication hole 11 of the base wall 6 a of the second core plate 6 .
- a direction of a flow of the oil passing through the core module 1 is changed to a direction perpendicular to the core plate stacking direction.
- the cooling water communication holes 12 are configured similarly to the oil communication holes 11 . That is, in the stacked condition, a circumferential portion that defines the respective cooling water communication holes 12 of the second basic core plate 5 is contacted with the boss 13 formed around the respective cooling water communication holes 12 of the first basic core plate 4 or the second core plate 6 which is disposed adjacent to the second basic core plate 5 . With this construction, the respective two cooling water passages 9 aligned with each other in the core plate stacking direction are communicated with each other through the cooling water communication holes 12 , and isolated from the oil passage 8 disposed between the respective two cooling water passages 9 .
- the respective cooling water passages 9 can be communicated with each other through the multiple cooling water communication holes 12 , and the cooling water is allowed to flow through the whole core module 1 in the vertical direction (i.e., in the core plate stacking direction).
- the projections 14 upwardly swelling from the base wall 5 a of the second basic core plate 5 are formed on the same side as the side on which the circumferential wall 5 b and the tapered sleeve portion 5 c of the second basic core plate 5 are upwardly raised from the base wall 5 a.
- the respective projections 14 have a generally frustoconical shape and a height equal to that of the bosses 13 of the first basic core plate 4 and the second core plate 6 and that of the bosses 15 of the second basic core plate 5 .
- the fin plate 10 disposed within the respective oil passages 8 includes four openings 17 of which one pair of the openings 17 are formed on one of diagonal lines of the fin plate 10 while the other pair of the openings 17 are formed on the other of the diagonal lines corresponding to the oil communication holes 11 and the cooling water communication holes 12 , respectively.
- the fin plate 10 also includes a through hole 18 formed in a central portion of the fin plate 10 corresponding to the central oil passage 16 formed by the tapered sleeve portions 4 c, 5 c, 6 c, 7 c.
- the respective openings 17 has a diameter slightly larger than the respective communication holes 11 , 12 so as to have a slight allowance relative to the respective bosses 13 .
- FIG. 1 shows a schematic perspective view of the fin plate 10 , and actually, the fin plate 10 is a so-called fin configuration as a whole having a plurality of plate fins.
- the top plate 2 is stacked on the upper-most portion of the core module 1 , i.e., on an upper surface of the third core plate 7 .
- the top plate 2 includes a cooling water introducing tube 21 communicated with one of the pair of cooling water communication holes 12 , 12 located on the upper-most portion of the core module 1 , and a cooling water discharging tube 22 communicated with the other of the pair of cooling water communication holes 12 , 12 .
- the top plate 2 also includes a swelling portion 23 on an upper side thereof which upwardly swells along one of diagonal lines of the top plate 2 having a generally rectangular shape in plan view. As shown in FIG. 3 , the swelling portion 23 defines a communication passage 24 through which the oil communication hole 11 and an upper end of the central oil passage 16 which are located in the upper-most portion of the core module 1 are communicated with each other.
- the bottom plate 3 that has a relatively large thickness and a sufficient rigidity is stacked on the lower surface of the core module 1 , i.e., on the lower surface of the first basic core plate 4 disposed at the lower-most positions among the whole first basic core plates 4 in the core module 1 .
- the bottom plate 3 includes an oil inlet 25 formed corresponding to one of the pair of oil communication holes 11 located in a lower-most portion of the core module 1 , and an oil outlet 26 formed corresponding to the central oil passage 16 .
- the bottom plate 3 is mounted to a cylinder block or the like, not shown.
- the oil whole temperature is increased during use for lubrication of respective parts of an internal combustion engine is introduced from the internal combustion engine into the respective oil passages 8 of the core module 1 through the oil inlet 25 of the bottom plate 3 , and cooled by heat exchange with the cooling water flowing in the cooling water passages 9 adjacent to the oil passages 8 .
- the oil thus cooled is flowed into the central oil passage 16 through the communication passage 24 of the swelling portion 23 of the top plate 2 , and finally is returned to the internal combustion engine through the oil outlet 26 of the bottom plate 3 .
- the oil cooler may be constructed such that the oil flow is reversed.
- the oil having a high temperature is introduced into the central oil passage 16 , and then cooled in the core module 1 by heat exchange. After that, the oil cooled is returned to the internal combustion engine through the oil communication holes 11 located in the lower-most portion of the core module 1 . Further, the cooling water is introduced into the core module 1 through the cooling water introducing tube 21 . The cooling water is distributed into the respective cooling water passages 9 through the cooling water communication holes 12 aligned with each other in the vertical direction, and at the same time, the cooling water is flowed, in each cooling water passage 9 , from one of the pair of cooling water communication holes 12 toward the other cooling water communication hole 12 . The cooling water is finally flowed out of the oil cooler 100 through the cooling water discharging tube 22 .
- the multiple core plates 4 , 5 , 6 , 7 , the fin plate 10 , the top plate 2 and the bottom plate 3 are bonded to each other by brazing and formed into an integral unit.
- these parts are formed of a so-called clad material that is an aluminum alloy mother metal covered with a brazing metal layer, and are integrally brazed by placing the parts provisionally assembled in predetermined positions within a furnace and heating the thus assembled parts together in the furnace.
- the circumferential wall 6 b of the second core plate 6 is formed such that a portion of the circumferential wall 6 b has a height larger than heights of the circumferential wall 4 b of the first basic core plate 4 , the circumferential wall 5 b of the second basic core plate 5 , and the circumferential wall 7 b of the third core plate 7 .
- the second core plate 6 is formed such that the height of the circumferential wall 6 b is varied along a circumferential direction of the base wall 6 a.
- the circumferential wall 4 b of the first basic core plate 4 , the circumferential wall 5 b of the second basic core plate 5 and the circumferential wall 7 b of the third core plate 7 have a constant height over the entire outer periphery of the respective base walls 4 a, 5 a, 7 a.
- the circumferential wall 6 b of the second core plate 6 is formed such that a height at one of four corner portions of the circumferential wall 6 b on the side of the oil communication hole 11 is larger than the height of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the circumferential wall 6 b of the second core plate 6 has two pairs of diagonally opposed corner portions 31 a, 31 b and 31 c, 31 d.
- One of the pair of diagonally opposed corner portions 31 a, 31 b, i.e., the corner portion 31 b which is located on the side of the oil communication hole 11 has a height larger than the height of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the other corner portion 31 a which is not located on the side of the oil communication hole 11 has a height equal to the height of the respective circumferential walls 4 b, 5 b, 7 b.
- the height of the circumferential wall 6 b of the second core plate 6 is varied along the circumferential direction of the base wall 6 a.
- a plane on which an upper end of the circumferential wall 6 b is located is inclined relative to a plane P parallel with the base wall 6 a.
- the circumferential wall 6 b has a maximum height at one corner portion 31 b of the pair of diagonally opposed corner portions 31 a, 31 b which is located on the side of the oil communication hole 11 .
- the circumferential wall 6 b has a minimum height at the other corner portion 31 a of the pair of diagonally opposed corner portions 31 a, 31 b which is equal to the height of the respective circumferential walls 4 b, 5 b, 7 b.
- the circumferential wall 6 b has a height smaller than the maximum height and larger than the minimum height at the pair of diagonally opposed corner portions 31 c, 31 d located on the side of the cooling water communication holes 12 , respectively.
- the height at the corner portion 31 c and the height at the corner portion 31 d are equal to each other.
- the circumferential wall 6 b of the second core plate 6 has the height continuously varied along the entire outer periphery of the base wall 6 a, it is possible to readily recognize that the height of the circumferential wall 6 b is varied when the circumferential wall 6 b is viewed from any position in a circumferential direction of the core module 1 .
- the second core plate 6 as a specific core plate can be recognized on the basis of the difference in height between the circumferential wall 6 b and the circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 . Accordingly, a person who handles the oil cooler can be prevented from being injured due to a shape or configuration of a portion serving for recognition unlike the conventional art in which a recess or a projection is provided on the specific core plate. Further, a specific core plate to be recognized can be prevented from being deteriorated in strength and anticorrosion property thereof unlike the conventional art requiring the provision of recess or projection serving for recognition of the specific core plate.
- the oil cooler 200 has the same construction as that of the above-described oil cooler 100 of the first embodiment except for configuration of a second core plate 206 .
- Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted.
- a height of the circumferential wall 6 b of the second core plate 206 in the second embodiment is varied along the circumferential direction of the base wall 6 a such that among two pairs of diagonally opposed corner portions 31 a, 31 b and 31 c, 31 d, the height at one corner portion 31 b of the pair of diagonally opposed corner portions 31 a, 31 b which is located on the side of the oil communication hole 11 and the height at the pair of diagonally opposed corner portions 31 c, 31 d respectively located on the side of the cooling water communication holes 12 are largest and equal to each other, and the height at the other corner portion 31 a of the pair of diagonally opposed corner portions 31 a, 31 b is smallest.
- the circumferential wall 6 b of the second core plate 206 is formed such that among the four corner portions 31 a, 31 b, 31 c, 31 d, one corner portion 31 a (i.e., one of the pair of diagonally opposed corner portions 31 a, 31 b ) which is not located on the side of the oil communication hole 11 has the same height as the height of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 , and the remaining corner portions 31 b, 31 c, 31 d have a height larger than the height of the respective the circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the circumferential wall 6 b is formed such that the height is continuously varied over a half range of the entire circumferential wall 6 b which extends from the corner portion 31 c to the corner portion 31 d through the corner portion 31 a, and the height is held constant over the remaining half range extending from the corner portion 31 c to the corner portion 31 d through the corner portion 31 b.
- a plane on which an upper end in the half range of the circumferential wall 6 b of the second core plate 206 which extends from the corner portion 31 c to the corner portion 31 d through the corner portion 31 a is located is inclined relative to a plane P parallel with the base wall 6 a as shown in FIG. 9 .
- a plane on which an upper end in the half range of the circumferential wall 6 b which extends from the corner portion 31 c to the corner portion 31 d through the corner portion 31 b is located lies on the plane P.
- the oil cooler 200 according to the second embodiment as shown in FIG. 10 can serve for readily recognizing a position of the second core plate 206 in the oil cooler 200 from an outer appearance thereof even after brazing.
- the oil cooler 300 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except for configuration of a second core plate 306 .
- Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted.
- a height of the circumferential wall 6 b of the second core plate 306 in the third embodiment is varied along the circumferential direction of the base wall 6 a as follows.
- the height at one corner portion 31 b of the pair of diagonally opposed corner portions 31 a, 31 b which is located on the side of the oil communication hole 11 and the height at one corner portion 31 d of the pair of diagonally opposed corner portions 31 c, 31 d which are respectively located on the side of the respective cooling water communication holes 12 are largest and equal to each other.
- the height at the other corner portion 31 a of the pair of diagonally opposed corner portions 31 a, 31 b and the height at the other corner portion 31 c of the pair of diagonally opposed corner portions 31 c, 31 d are smallest and equal to each other.
- the circumferential wall 6 b of the second core plate 306 is formed such that among the two pairs of diagonally opposed corner portions 31 a, 31 b and 31 c, 31 d, one corner portion 31 a of the pair of diagonally opposed corner portions 31 a, 31 b which is not located on the side of the oil communication hole 11 and one corner portion 31 c of the pair of diagonally opposed corner portions 31 c, 31 d which are respectively located on the side of the respective cooling water communication holes 12 have the same height as that of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 , and the other corner portion 31 b of the pair of diagonally opposed corner portions 31 a, 31 b and the other corner portion 31 d of the pair of diagonally opposed corner portions 31 c, 31 d have a height larger than that of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the circumferential wall 6 b of the second core plate 306 is formed such that the height is varied between the corner portion 31 b and the corner portion 31 c and between the corner portion 31 d and the corner portion 31 a, but the height is held constant between the corner portion 31 b and the corner portion 31 d and between the corner portion 31 c and the corner portion 31 a.
- a plane on which an upper end of a portion of the circumferential wall 6 b which extends between the corner portion 31 b and the corner portion 31 c and an upper end of a portion of the circumferential wall 6 b which extends between the corner portion 31 d and the corner portion 31 a are located is inclined relative to a plane P parallel with the base wall 6 a as shown in FIG. 13 .
- a plane on which an upper end of a portion of the circumferential wall 6 b which extends between the corner portion 31 b and the corner portion 31 d is located lies on the plane P.
- a plane on which an upper end of a portion of the circumferential wall 6 b which extends between the corner portion 31 c and the corner portion 31 a is located also lies on a plane parallel with the base wall 6 a.
- the thus constructed oil cooler 300 according to the third embodiment as shown in FIG. 14 serves for readily recognizing a position of the second core plate 306 in the oil cooler 300 from an outer appearance thereof even after brazing.
- the oil cooler 400 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except that respective core plates 4 , 5 , 7 , 406 have not a rectangular shape but a disk shape in plan view.
- respective core plates 4 , 5 , 7 , 406 have not a rectangular shape but a disk shape in plan view.
- Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted.
- the second core plate 406 includes a disk-shaped base wall 6 a formed with a pair of cooling water communication holes 12 , 12 and an oil communication hole 11 .
- the pair of cooling water communication holes 12 , 12 are formed in a diametrically opposed relation to each other so as to be symmetric with respect to the central through hole of the base wall 6 a.
- the oil communication hole 11 is disposed on an outer circumferential side of the base wall 6 a and formed on a straight line perpendicular to a diametrical line of the base wall 6 a on which the cooling water communication holes 12 , 12 are formed (i.e., a straight line extending through a center of the base wall 6 a and respective centers of the cooling water communication holes 12 , 12 ).
- the circumferential wall 6 b of the second core plate 406 is configured such that a height thereof is continuously varied along a circumferential direction of the base wall 6 a. As shown in FIG. 16 , a plane on which an upper end of the circumferential wall 6 b is located is inclined relative to a plane P parallel with the base wall 6 a. Further, the circumferential wall 6 b has a maximum height on a side of the oil communication hole 11 , and has a minimum height on a side diametrically opposed to the oil communication hole 11 with respect to the tapered sleeve portion 6 c. In other words, as a distance between the circumferential wall 6 b and the oil communication hole 11 is reduced, the height of the circumferential wall 6 b becomes larger.
- the minimum height at a portion of the circumferential wall 6 b on the side diametrically opposed to the oil communication hole 11 is equal to the height of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the thus constructed oil cooler 400 according to the fourth embodiment as shown in FIG. 17 can serve for readily recognizing a position of the second core plate 406 in the oil cooler 400 from an outer appearance thereof even after brazing.
- the oil cooler 500 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except that respective core plates 4 , 5 , 7 , 506 have not a rectangular shape but a circular shape in plan view.
- respective core plates 4 , 5 , 7 , 506 have not a rectangular shape but a circular shape in plan view.
- Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted.
- the second core plate 506 includes a disk-shaped base wall 6 a formed with a pair of cooling water communication holes 12 , 12 and an oil communication hole 11 .
- the pair of cooling water communication holes 12 , 12 are formed in a diametrically opposed relation to each other so as to be symmetric with respect to the central through hole of the base wall 6 a.
- the oil communication hole 11 is disposed on an outer circumferential side of the base wall 6 a and formed on a straight line perpendicular to a diametrical line of the base wall 6 a on which the pair of cooling water communication holes 12 , 12 are formed (i.e., a straight line extending through a center of the base wall 6 a and respective centers of the cooling water communication holes 12 , 12 ).
- the circumferential wall 6 b of the second core plate 506 is configured such that a height thereof is varied along a circumferential direction of the base wall 6 a.
- the circumferential wall 6 b of the second core plate 506 includes two circumferential halves that are disposed on both sides of a straight line extending through a center of the base wall 6 a and respective centers of the pair of cooling water communication holes 12 , 12 in a case where the circumferential wall 6 b is separated into the two halves by the straight line.
- One of the two circumferential halves is disposed on a side of the oil communication hole 11 , and has a maximum height.
- the other circumferential half is disposed on a side diametrically opposed to the oil communication hole 11 with respect to the tapered sleeve portion 6 c, and has a minimum height at a portion spaced farthest from the oil communication hole 11 (i.e., at a portion diametrically opposed to the oil communication hole 11 ).
- the height of the other circumferential half is continuously decreased to the minimum height. That is, the circumferential wall 6 b of the second core plate 506 has a constant height at the one of the two circumferential halves and a varying height continuously varied at the other thereof. Specifically, as shown in FIG.
- a plane on which an upper end of the one of the two circumferential halves is located is a plane P parallel with the base wall 6 a, and a plane on which an upper end of the other of the two circumferential halves is located is inclined relative to the plane P.
- the minimum height at a portion of the other circumferential half of the circumferential wall 6 b is equal to the height of the respective circumferential walls 4 b, 5 b, 7 b of the core plates 4 , 5 , 7 .
- the thus constructed oil cooler 500 according to the fifth embodiment as shown in FIG. 20 can serve for readily recognizing a position of the second core plate 506 in the oil cooler 500 from an outer appearance thereof even after brazing.
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Abstract
An oil cooler including a plurality of core plates stacked on each other, the plurality of core plates each including a base wall and a circumferential wall formed along an entire outer periphery of the base wall, and oil passages and cooling water passages alternately arranged in the direction of stacking the core plates. The core plates include at least a first core plate and a second core plate that is different from the first core plate in construction. The circumferential wall of the second core plate has a height being varied along a circumferential direction of the base wall. The circumferential wall of the second core plate is partially higher than the circumferential wall of the first core plate.
Description
- The present invention relates to a so-called stacked multi-plate oil cooler that is used for cooling a vehicular oil, for instance, a lubricating oil in an internal combustion engine or a working oil in an automatic transmission.
- Japanese Patent Application Unexamined Publication No. 11-351778 discloses an oil cooler including a plurality of first plates and a plurality of second plates which are alternately stacked. A cooling water chamber and an oil chamber are alternately formed between the first plate and the second plate in a direction of stacking the plates. The oil chambers adjacent to each other in the direction of stacking the plates are communicated with each other through a pair of oil passages which are formed in the first plate and the second plate, respectively. The cooling water chambers adjacent to each other in the direction of stacking the plates are communicated with each other through a pair of cooling water passages which are formed in the first plate and the second plate, respectively. A part of each of the oil passages is closed by a given closing plate.
- In the above conventional art, a projection or a recess is formed on an outer circumferential periphery of a cylindrical wall of each of the closing plate and the first plate. The projection or the recess is arranged in a certain positional relationship to the oil passages and the cooling water passages. With the provision of the projection or the recess, it is possible to recognize that the first plates and the closing plates are stacked on each other in a certain positional relationship to each other by visual observation from an outside of the oil cooler.
- However, in the above-described conventional art, in a case where the projection is formed on the outer circumferential periphery of each of the closing plate and the first plate, the projection projects from the outer circumferential periphery of each of the closing plate and the first plate. Therefore, there is a possibility that a person who handles the oil cooler is accidentally injured. On the other hand, in a case where the recess is formed on the outer circumferential periphery of each of the closing plate and the first plate, there is also a possibility that a person who handles the oil cooler is accidentally injured with a corner edge of the recess. Further, in such a case, the recess is formed in such a manner as to cut out a portion of the outer circumferential periphery of the cylindrical wall of each of the closing plate and the first plate. Due to the thus formed recess, there will occur reduction in strength of the cylindrical wall in a position in which the recess is formed, and deterioration in anticorrosion property.
- It is an object of the present invention to solve the above-described problems encountered in the technologies of the conventional art.
- In a first aspect of the present invention, there is provided an oil cooler including:
- a plurality of core plates stacked on each other, the plurality of core plates each including a base wall and a circumferential wall formed along an entire outer periphery of the base wall, the circumferential wall being inclined relative to the base wall so as to outwardly extend from the entire outer periphery of the base wall, the circumferential walls of the core plates which are disposed adjacent to each other in a direction of stacking the core plates being bonded to each other, and
- oil passages and cooling water passages alternately arranged in the direction of stacking the core plates, the respective oil passages and the respective cooling water passages being formed in a clearance between the base walls adjacent to each other in the direction of stacking the core plates,
- wherein the core plates include at least a first core plate and a second core plate that is different from the first core plate in construction, and the circumferential wall of the second core plate has a height being varied along a circumferential direction of the base wall, and the circumferential wall of the second core plate is partially higher than the circumferential wall of the first core plate.
- In a second aspect of the present invention, there is provided the oil cooler according to the first aspect of the present invention, wherein the height of the circumferential wall of the second core plate is continuously varied along the entire outer periphery of the base wall, and the circumferential wall of the second core plate has an upper end located on a plane.
- In a third aspect of the present invention, there is provided the oil cooler according to the first aspect of the present invention, wherein the base wall of the first core plate includes a pair of oil communication holes through which the oil passages are communicated with each other in the direction of stacking the core plates, and a pair of cooling water communication holes through which the cooling water passages are communicated with each other in the direction of stacking the core plates, the pair of oil communication holes being symmetrically arranged with respect to a center of the base wall,
- the circumferential wall of the first core plate has a constant height over the entire outer periphery of the base wall of the first core plate, and
- the base wall of the second core plate comprises one oil communication hole aligned with one of the pair of oil communication holes of the base wall of the first core plate, the base wall of the second core plate blocking a flow of oil passing through the other of the pair of oil communication holes of the base wall of the first core plate such that a direction of a flow of oil passing through the oil cooler is changed to a direction perpendicular to the direction of stacking the core plates.
- The oil cooler according to the present invention can serve for identifying a specific core plate on the basis of a difference in height of a peripheral wall between a plurality of core plates even after the core plates are stacked on each other. Further, a person who handles the oil cooler according to the present invention can be prevented from suffering an injury due to a configuration of the identifying portion of the core plate. Furthermore, the oil cooler according to the present invention can serve for suppressing reduction in strength of the specific core plate to be identified and deterioration of anticorrosion property.
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FIG. 1 is an exploded perspective view of an oil cooler according to a first embodiment of the present invention. -
FIG. 2 is a plan view of the oil cooler according to the first embodiment of the present invention. -
FIG. 3 is a sectional view of the oil cooler according to the first embodiment of the present invention, taken along line A-A shown inFIG. 2 . -
FIG. 4 is a perspective view of a second core plate used in the oil cooler according to the first embodiment of the present invention. -
FIG. 5 is a side view of the second core plate shown inFIG. 4 , when viewed from a direction of arrow B shown inFIG. 4 . -
FIG. 6 is a perspective view of the oil cooler according to the first embodiment of the present invention. -
FIG. 7 is a side view of the oil cooler according to the first embodiment of the present invention. -
FIG. 8 is a perspective view of a second core plate used in an oil cooler according to a second embodiment of the present invention. -
FIG. 9 is a side view of the second core plate shown inFIG. 8 , when viewed from a direction of arrow C shown inFIG. 8 . -
FIG. 10 is a side view of the oil cooler according to the second embodiment of the present invention. -
FIG. 11 is a perspective view of a second core plate used in an oil cooler according to a third embodiment of the present invention. -
FIG. 12 is a side view of the second core plate shown inFIG. 11 , when viewed from a direction of arrow D shown inFIG. 11 . -
FIG. 13 is a side view of the second core plate shown inFIG. 11 , when viewed from a direction of arrow E shown inFIG. 11 . -
FIG. 14 is a side view of the oil cooler according to the third embodiment of the present invention. -
FIG. 15 is a perspective view of a second core plate used in an oil cooler according to a fourth embodiment of the present invention. -
FIG. 16 is a side view of the second core plate shown inFIG. 15 , when viewed from a direction of arrow F shown inFIG. 15 . -
FIG. 17 is a side view of the oil cooler according to the fourth embodiment of the present invention. -
FIG. 18 is a perspective view of a second core plate used in the oil cooler according to a fifth embodiment of the present invention. -
FIG. 19 is a side view of the second core plate shown inFIG. 18 , when viewed from a direction of arrow G shown inFIG. 18 . -
FIG. 20 is side view of an oil cooler according to the fifth embodiment of the present invention. - An
oil cooler 100 according to a first embodiment of the present invention will be explained hereinafter by referring toFIG. 1 toFIG. 7 . -
FIG. 1 is an exploded perspective view of theoil cooler 100.FIG. 2 is a plan view of theoil cooler 100.FIG. 3 is a sectional view of theoil cooler 100, taken along line A-A shown inFIG. 2 - A construction of the
oil cooler 100 as a whole is explained. Theoil cooler 100 is entirely made of aluminum, for example. As shown inFIG. 1 , theoil cooler 100 includes acore module 1 that performs heat exchange between oil and cooling water, atop plate 2 that is mounted to a top surface of thecore module 1 and has a relatively large thickness, and abottom plate 3 mounted to a bottom surface of thecore module 1. - The
core module 1 includes four kinds ofcore plates core module 1 also includesoil passages 8 andcooling water passages 9 alternately arranged in a direction of stacking thecore plates FIG. 1 , thecore module 1 is formed by alternately stacking a firstbasic core plate 4 and a secondbasic core plate 5 on each other, each serving as a first core plate, except that the firstbasic core plates 4 disposed in two intermediate positions of thecore module 1 in the core plate stacking direction are each replaced by asecond core plate 6. Athird core plate 7 is disposed on an upper-most portion of thecore module 1. A generallyrectangular fin plate 10 is disposed in therespective oil passages 8. - The first
basic core plate 4 and the secondbasic core plate 5 have a generally rectangular shape in plan view. A pair ofoil communication holes 11 are formed on one of diagonal lines of each of the first and secondbasic core plates water communication holes 12 are formed on the other diagonal line of each of the first and secondbasic core plates - Specifically, the first
basic core plate 4 includes a rectangular plate-shapedbase wall 4 a, and an inclinedcircumferential wall 4 b that is formed along an entire outer periphery of thebase wall 4 a and inclined so as to outwardly extend from an outer circumferential edge of thebase wall 4 a. Thebase wall 4 a is formed with the pair of oil communication holes 11, 11 and the pair of cooling water communication holes 12, 12 which extend through thebase wall 4 a. Thebase wall 4 a is also formed with atapered sleeve portion 4 c that is formed along an entire periphery of a central through hole of thebase wall 4 a so as to have a hollow frustoconical shape. Aboss 13 is formed along an entire periphery of the respective cooling water communication holes 12, 12. The secondbasic core plate 5 includes a rectangular plate-shapedbase wall 5 a, and an inclinedcircumferential wall 5 b that is formed along an entire outer periphery of thebase wall 5 a and inclined so as to outwardly extend from an outer circumferential edge of thebase wall 5 a. Thebase wall 5 a is formed with the pair of oil communication holes 11, 11 and the pair of cooling water communication holes 12, 12 which extend through thebase wall 5 a. Thebase wall 5 a is also formed with atapered sleeve portion 5 c that is formed along an entire periphery of a central through hole of thebase wall 5 a so as to have a hollow frustoconical shape, and a plurality offrustoconical projections 14 upwardly projecting from thebase wall 5 a. Aboss 15 is formed along an entire periphery of the respective oil communication holes 11, 11. Theboss 15 has a same height as that of theboss 13 of the firstbasic core plate 4. - The
second core plate 6 has a generally rectangular shape in plan view. A pair of cooling water communication holes 12, 12 are formed on one of diagonal lines of thesecond core plate 6 in a spaced relation to each other. Oneoil communication hole 11 is formed on the other diagonal line of thesecond core plate 6. - Specifically, the
second core plate 6 includes a rectangular plate-shapedbase wall 6 a, and an inclinedcircumferential wall 6 b that is formed along an entire outer periphery of thebase wall 6 a and inclined so as to outwardly extend from an outer circumferential edge of thebase wall 6 a. Thebase wall 6 a is formed with the oneoil communication hole 11 and the pair of cooling water communication holes 12, 12 which extend through thebase wall 6 a. Thebase wall 6 a is also formed with atapered sleeve portion 6 c that is formed along an entire periphery of a central through hole of thebase wall 6 a so as to have a hollow frustoconical shape. Aboss 13 is formed along an entire periphery of the respective cooling water communication holes 12, 12. Theboss 13 has a height equal to that of theboss 13 of the firstbasic core plate 4. In other words, thebase wall 6 a of thesecond core plate 6 in this embodiment has the same configuration as that of thebase wall 4 a of the firstbasic core plate 4 except that one of the pair of oil communication holes 11, 11 is closed. - The
third core plate 7 has a generally rectangular shape in plan view. A pair of cooling water communication holes 12, 12 are formed on one of diagonal lines of thethird core plate 7 in a spaced relation to each other. Oneoil communication hole 11 is formed on the other diagonal line of thethird core plate 7. - Specifically, the
third core plate 7 includes a rectangular plate-shapedbase wall 7 a, and an inclinedcircumferential wall 7 b that is formed along an entire outer periphery of thebase wall 7 a and inclined so as to outwardly extend from an outer circumferential edge of thebase wall 7 a. Thebase wall 7 a is formed with theoil communication hole 11 and the pair of cooling water communication holes 12, 12 which extend through thebase wall 7 a. Thebase wall 7 a is also formed with atapered sleeve portion 7 c that is formed along an entire periphery of a central through hole of thebase wall 7 a so as to have a hollow frustoconical shape. Owing to the positional relationship with thetop plate 2, thethird core plate 7 has no boss formed around each of theoil communication hole 11 and the cooling water communication holes 12, 12. - In a stacked condition in which the
respective core plates circumferential walls sleeve portions central oil passage 16 extending through thecore module 1 in a vertical direction (i.e., in the core plate stacking direction). Thecentral oil passage 16 is not directly communicated with therespective oil passages 8 formed between thecore plates - In the first
basic core plate 4 and thesecond core plate 6, a circumferential portion that defines the respective cooling water communication holes 12, 12 is raised from therespective base walls boss 13 projecting toward a side of theoil passages 8. In the secondbasic core plate 5, a circumferential portion that defines the respective oil communication holes 11, 11 is raised from thebase wall 5 a so as to serve as theboss 15 projecting toward a side of the coolingwater passages 9. With the provision of thebasses core plates base wall 4 a of the firstbasic core plate 4 and thebase wall 5 a of the secondbasic core plate 5 and between thebase wall 5 a of the secondbasic core plate 5 and thebase wall 6 a of the second core plate, serving as theoil passages 8 and the coolingwater passages 9. - In the stacked condition in which the
multiple core plates basic core plate 4 is contacted with theboss 15 formed around the respective oil communication holes 11 of the secondbasic core plate 5 disposed adjacent to the firstbasic core plate 4. Similarly, in the stacked condition, a circumferential portion that defines the respective oil communication holes 11 of thesecond core plate 6 is bonded to theboss 15 formed around the respective oil communication holes 11 of the secondbasic core plate 5 disposed adjacent to thesecond core plate 6. With this construction, the respective twooil passages 8 aligned with each other in the core plate stacking direction are communicated with each other through the oil communication holes 11, and isolated from the coolingwater passage 9 disposed between the respective twooil passages 8. Accordingly, in the stacked condition, therespective oil passages 8 can be communicated with each other through the multiple oil communication holes 11, and the oil is allowed to flow through thewhole core module 1 in the vertical direction (i.e., in the core plate stacking direction). Further, in this embodiment, in the stacked condition, thebase wall 6 a of thesecond core plate 6 blocks a flow of oil passing through the other of the pair of oil communication holes 11 of thebase walls core plates oil communication hole 11 of thebase wall 6 a of thesecond core plate 6. In other words, in a vertical position of thecore module 1 in which thesecond core plate 6 is located, a direction of a flow of the oil passing through thecore module 1 is changed to a direction perpendicular to the core plate stacking direction. - The cooling water communication holes 12 are configured similarly to the oil communication holes 11. That is, in the stacked condition, a circumferential portion that defines the respective cooling water communication holes 12 of the second
basic core plate 5 is contacted with theboss 13 formed around the respective cooling water communication holes 12 of the firstbasic core plate 4 or thesecond core plate 6 which is disposed adjacent to the secondbasic core plate 5. With this construction, the respective two coolingwater passages 9 aligned with each other in the core plate stacking direction are communicated with each other through the cooling water communication holes 12, and isolated from theoil passage 8 disposed between the respective two coolingwater passages 9. Accordingly, in the stacked condition in which themultiple core plates cooling water passages 9 can be communicated with each other through the multiple cooling water communication holes 12, and the cooling water is allowed to flow through thewhole core module 1 in the vertical direction (i.e., in the core plate stacking direction). - The
projections 14 upwardly swelling from thebase wall 5 a of the secondbasic core plate 5 are formed on the same side as the side on which thecircumferential wall 5 b and the taperedsleeve portion 5 c of the secondbasic core plate 5 are upwardly raised from thebase wall 5 a. Further, therespective projections 14 have a generally frustoconical shape and a height equal to that of thebosses 13 of the firstbasic core plate 4 and thesecond core plate 6 and that of thebosses 15 of the secondbasic core plate 5. With this construction, in an assembled condition of theoil cooler 100, as shown inFIG. 3 , a top portion of therespective projections 14 is bonded to a lower surface (a flat surface) of the firstbasic core plate 4 or a lower surface (a flat surface) of thesecond core plate 6 by brazing. - The
fin plate 10 disposed within therespective oil passages 8 includes fouropenings 17 of which one pair of theopenings 17 are formed on one of diagonal lines of thefin plate 10 while the other pair of theopenings 17 are formed on the other of the diagonal lines corresponding to the oil communication holes 11 and the cooling water communication holes 12, respectively. Thefin plate 10 also includes a throughhole 18 formed in a central portion of thefin plate 10 corresponding to thecentral oil passage 16 formed by the taperedsleeve portions respective openings 17 has a diameter slightly larger than the respective communication holes 11, 12 so as to have a slight allowance relative to therespective bosses 13. Meanwhile,FIG. 1 shows a schematic perspective view of thefin plate 10, and actually, thefin plate 10 is a so-called fin configuration as a whole having a plurality of plate fins. - The
top plate 2 is stacked on the upper-most portion of thecore module 1, i.e., on an upper surface of thethird core plate 7. Thetop plate 2 includes a coolingwater introducing tube 21 communicated with one of the pair of cooling water communication holes 12, 12 located on the upper-most portion of thecore module 1, and a coolingwater discharging tube 22 communicated with the other of the pair of cooling water communication holes 12, 12. Thetop plate 2 also includes a swellingportion 23 on an upper side thereof which upwardly swells along one of diagonal lines of thetop plate 2 having a generally rectangular shape in plan view. As shown inFIG. 3 , the swellingportion 23 defines acommunication passage 24 through which theoil communication hole 11 and an upper end of thecentral oil passage 16 which are located in the upper-most portion of thecore module 1 are communicated with each other. - The
bottom plate 3 that has a relatively large thickness and a sufficient rigidity is stacked on the lower surface of thecore module 1, i.e., on the lower surface of the firstbasic core plate 4 disposed at the lower-most positions among the whole firstbasic core plates 4 in thecore module 1. Thebottom plate 3 includes anoil inlet 25 formed corresponding to one of the pair of oil communication holes 11 located in a lower-most portion of thecore module 1, and anoil outlet 26 formed corresponding to thecentral oil passage 16. Thebottom plate 3 is mounted to a cylinder block or the like, not shown. - In the thus constructed
oil cooler 100, the oil whole temperature is increased during use for lubrication of respective parts of an internal combustion engine is introduced from the internal combustion engine into therespective oil passages 8 of thecore module 1 through theoil inlet 25 of thebottom plate 3, and cooled by heat exchange with the cooling water flowing in the coolingwater passages 9 adjacent to theoil passages 8. The oil thus cooled is flowed into thecentral oil passage 16 through thecommunication passage 24 of the swellingportion 23 of thetop plate 2, and finally is returned to the internal combustion engine through theoil outlet 26 of thebottom plate 3. Meanwhile, the oil cooler may be constructed such that the oil flow is reversed. In such a case, the oil having a high temperature is introduced into thecentral oil passage 16, and then cooled in thecore module 1 by heat exchange. After that, the oil cooled is returned to the internal combustion engine through the oil communication holes 11 located in the lower-most portion of thecore module 1. Further, the cooling water is introduced into thecore module 1 through the coolingwater introducing tube 21. The cooling water is distributed into the respectivecooling water passages 9 through the cooling water communication holes 12 aligned with each other in the vertical direction, and at the same time, the cooling water is flowed, in each coolingwater passage 9, from one of the pair of cooling water communication holes 12 toward the other coolingwater communication hole 12. The cooling water is finally flowed out of theoil cooler 100 through the coolingwater discharging tube 22. - The
multiple core plates fin plate 10, thetop plate 2 and thebottom plate 3 are bonded to each other by brazing and formed into an integral unit. Specifically, these parts are formed of a so-called clad material that is an aluminum alloy mother metal covered with a brazing metal layer, and are integrally brazed by placing the parts provisionally assembled in predetermined positions within a furnace and heating the thus assembled parts together in the furnace. - Next, the
second core plate 6 as an essential part of theoil cooler 100 according to the first embodiment of the present invention will be explained hereinafter. Thecircumferential wall 6 b of thesecond core plate 6 is formed such that a portion of thecircumferential wall 6 b has a height larger than heights of thecircumferential wall 4 b of the firstbasic core plate 4, thecircumferential wall 5 b of the secondbasic core plate 5, and thecircumferential wall 7 b of thethird core plate 7. In other words, thesecond core plate 6 is formed such that the height of thecircumferential wall 6 b is varied along a circumferential direction of thebase wall 6 a. - That is, the
circumferential wall 4 b of the firstbasic core plate 4, thecircumferential wall 5 b of the secondbasic core plate 5 and thecircumferential wall 7 b of thethird core plate 7 have a constant height over the entire outer periphery of therespective base walls circumferential wall 6 b of thesecond core plate 6 is formed such that a height at one of four corner portions of thecircumferential wall 6 b on the side of theoil communication hole 11 is larger than the height of the respectivecircumferential walls core plates - Specifically, as shown in
FIG. 4 , thecircumferential wall 6 b of thesecond core plate 6 has two pairs of diagonally opposedcorner portions corner portions corner portion 31 b which is located on the side of theoil communication hole 11 has a height larger than the height of the respectivecircumferential walls core plates other corner portion 31 a which is not located on the side of theoil communication hole 11 has a height equal to the height of the respectivecircumferential walls - More specifically, as shown in
FIG. 4 andFIG. 5 , the height of thecircumferential wall 6 b of thesecond core plate 6 is varied along the circumferential direction of thebase wall 6 a. A plane on which an upper end of thecircumferential wall 6 b is located is inclined relative to a plane P parallel with thebase wall 6 a. Thecircumferential wall 6 b has a maximum height at onecorner portion 31 b of the pair of diagonally opposedcorner portions oil communication hole 11. Thecircumferential wall 6 b has a minimum height at theother corner portion 31 a of the pair of diagonally opposedcorner portions circumferential walls circumferential wall 6 b has a height smaller than the maximum height and larger than the minimum height at the pair of diagonally opposedcorner portions corner portion 31 c and the height at thecorner portion 31 d are equal to each other. - In the
oil cooler 100 using the thus configuredsecond core plate 6, as shown inFIG. 6 andFIG. 7 , it is possible to readily recognize a position of thesecond core plate 6 from an outer appearance thereof even after brazing. Further, since thecircumferential wall 6 b has the maximum height at the portion located on the side of thecorner portion 31 b formed with theoil communication hole 11, a direction of thesecond core plate 6 in thecore module 1 can be readily recognized from the outer appearance of theoil cooler 100. Furthermore, it is possible to recognize a position of theoil communication hole 11 in thesecond core plate 6 from the outer appearance of theoil cooler 100. - Further, since the
circumferential wall 6 b of thesecond core plate 6 has the height continuously varied along the entire outer periphery of thebase wall 6 a, it is possible to readily recognize that the height of thecircumferential wall 6 b is varied when thecircumferential wall 6 b is viewed from any position in a circumferential direction of thecore module 1. - Furthermore, the
second core plate 6 as a specific core plate can be recognized on the basis of the difference in height between thecircumferential wall 6 b and thecircumferential walls core plates - Referring to
FIG. 8 toFIG. 10 , an oil cooler 200 according to a second embodiment of the present invention is explained. Theoil cooler 200 has the same construction as that of the above-describedoil cooler 100 of the first embodiment except for configuration of asecond core plate 206. Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted. - As shown in
FIG. 8 andFIG. 9 , a height of thecircumferential wall 6 b of thesecond core plate 206 in the second embodiment is varied along the circumferential direction of thebase wall 6 a such that among two pairs of diagonally opposedcorner portions corner portion 31 b of the pair of diagonally opposedcorner portions oil communication hole 11 and the height at the pair of diagonally opposedcorner portions other corner portion 31 a of the pair of diagonally opposedcorner portions circumferential wall 6 b of thesecond core plate 206 is formed such that among the fourcorner portions corner portion 31 a (i.e., one of the pair of diagonally opposedcorner portions oil communication hole 11 has the same height as the height of the respectivecircumferential walls core plates corner portions circumferential walls core plates circumferential wall 6 b is formed such that the height is continuously varied over a half range of the entirecircumferential wall 6 b which extends from thecorner portion 31 c to thecorner portion 31 d through thecorner portion 31 a, and the height is held constant over the remaining half range extending from thecorner portion 31 c to thecorner portion 31 d through thecorner portion 31 b. - Specifically, a plane on which an upper end in the half range of the
circumferential wall 6 b of thesecond core plate 206 which extends from thecorner portion 31 c to thecorner portion 31 d through thecorner portion 31 a is located is inclined relative to a plane P parallel with thebase wall 6 a as shown inFIG. 9 . On the other hand, a plane on which an upper end in the half range of thecircumferential wall 6 b which extends from thecorner portion 31 c to thecorner portion 31 d through thecorner portion 31 b is located lies on the plane P. - Similarly to the
oil cooler 100 according to the first embodiment, theoil cooler 200 according to the second embodiment as shown inFIG. 10 can serve for readily recognizing a position of thesecond core plate 206 in the oil cooler 200 from an outer appearance thereof even after brazing. - Referring to
FIG. 11 toFIG. 14 , an oil cooler 300 according to a third embodiment of the present invention is explained. Theoil cooler 300 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except for configuration of asecond core plate 306. Like reference numerals denote like parts, and therefore, detailed explanations thereof are omitted. - As shown in
FIG. 11 toFIG. 13 , a height of thecircumferential wall 6 b of thesecond core plate 306 in the third embodiment is varied along the circumferential direction of thebase wall 6 a as follows. The height at onecorner portion 31 b of the pair of diagonally opposedcorner portions oil communication hole 11 and the height at onecorner portion 31 d of the pair of diagonally opposedcorner portions other corner portion 31 a of the pair of diagonally opposedcorner portions other corner portion 31 c of the pair of diagonally opposedcorner portions circumferential wall 6 b of thesecond core plate 306 is formed such that among the two pairs of diagonally opposedcorner portions corner portion 31 a of the pair of diagonally opposedcorner portions oil communication hole 11 and onecorner portion 31 c of the pair of diagonally opposedcorner portions circumferential walls core plates other corner portion 31 b of the pair of diagonally opposedcorner portions other corner portion 31 d of the pair of diagonally opposedcorner portions circumferential walls core plates circumferential wall 6 b of thesecond core plate 306 is formed such that the height is varied between thecorner portion 31 b and thecorner portion 31 c and between thecorner portion 31 d and thecorner portion 31 a, but the height is held constant between thecorner portion 31 b and thecorner portion 31 d and between thecorner portion 31 c and thecorner portion 31 a. - Specifically, a plane on which an upper end of a portion of the
circumferential wall 6 b which extends between thecorner portion 31 b and thecorner portion 31 c and an upper end of a portion of thecircumferential wall 6 b which extends between thecorner portion 31 d and thecorner portion 31 a are located is inclined relative to a plane P parallel with thebase wall 6 a as shown inFIG. 13 . On the other hand, a plane on which an upper end of a portion of thecircumferential wall 6 b which extends between thecorner portion 31 b and thecorner portion 31 d is located lies on the plane P. A plane on which an upper end of a portion of thecircumferential wall 6 b which extends between thecorner portion 31 c and thecorner portion 31 a is located also lies on a plane parallel with thebase wall 6 a. - Similarly to the
oil cooler 100 according to the first embodiment, the thus constructedoil cooler 300 according to the third embodiment as shown inFIG. 14 serves for readily recognizing a position of thesecond core plate 306 in the oil cooler 300 from an outer appearance thereof even after brazing. - Referring to
FIG. 15 toFIG. 17 , an oil cooler 400 according to a fourth embodiment of the present invention is explained. Theoil cooler 400 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except thatrespective core plates - As shown in
FIG. 15 , thesecond core plate 406 includes a disk-shapedbase wall 6 a formed with a pair of cooling water communication holes 12, 12 and anoil communication hole 11. The pair of cooling water communication holes 12, 12 are formed in a diametrically opposed relation to each other so as to be symmetric with respect to the central through hole of thebase wall 6 a. Theoil communication hole 11 is disposed on an outer circumferential side of thebase wall 6 a and formed on a straight line perpendicular to a diametrical line of thebase wall 6 a on which the cooling water communication holes 12, 12 are formed (i.e., a straight line extending through a center of thebase wall 6 a and respective centers of the cooling water communication holes 12, 12). - The
circumferential wall 6 b of thesecond core plate 406 is configured such that a height thereof is continuously varied along a circumferential direction of thebase wall 6 a. As shown inFIG. 16 , a plane on which an upper end of thecircumferential wall 6 b is located is inclined relative to a plane P parallel with thebase wall 6 a. Further, thecircumferential wall 6 b has a maximum height on a side of theoil communication hole 11, and has a minimum height on a side diametrically opposed to theoil communication hole 11 with respect to the taperedsleeve portion 6 c. In other words, as a distance between thecircumferential wall 6 b and theoil communication hole 11 is reduced, the height of thecircumferential wall 6 b becomes larger. Further, in theoil cooler 400 according to the fourth embodiment, the minimum height at a portion of thecircumferential wall 6 b on the side diametrically opposed to theoil communication hole 11 is equal to the height of the respectivecircumferential walls core plates - Similarly to the
oil cooler 100 according to the first embodiment, the thus constructedoil cooler 400 according to the fourth embodiment as shown inFIG. 17 can serve for readily recognizing a position of thesecond core plate 406 in the oil cooler 400 from an outer appearance thereof even after brazing. - Referring to
FIG. 18 toFIG. 20 , an oil cooler 500 according to a fifth embodiment of the present invention is explained. Theoil cooler 500 has the same construction as that of the above-described oil cooler 100 according to the first embodiment except thatrespective core plates - As shown in
FIG. 18 , thesecond core plate 506 includes a disk-shapedbase wall 6 a formed with a pair of cooling water communication holes 12, 12 and anoil communication hole 11. The pair of cooling water communication holes 12, 12 are formed in a diametrically opposed relation to each other so as to be symmetric with respect to the central through hole of thebase wall 6 a. Theoil communication hole 11 is disposed on an outer circumferential side of thebase wall 6 a and formed on a straight line perpendicular to a diametrical line of thebase wall 6 a on which the pair of cooling water communication holes 12, 12 are formed (i.e., a straight line extending through a center of thebase wall 6 a and respective centers of the cooling water communication holes 12, 12). - The
circumferential wall 6 b of thesecond core plate 506 is configured such that a height thereof is varied along a circumferential direction of thebase wall 6 a. As shown inFIG. 18 andFIG. 19 , thecircumferential wall 6 b of thesecond core plate 506 includes two circumferential halves that are disposed on both sides of a straight line extending through a center of thebase wall 6 a and respective centers of the pair of cooling water communication holes 12, 12 in a case where thecircumferential wall 6 b is separated into the two halves by the straight line. One of the two circumferential halves is disposed on a side of theoil communication hole 11, and has a maximum height. The other circumferential half is disposed on a side diametrically opposed to theoil communication hole 11 with respect to the taperedsleeve portion 6 c, and has a minimum height at a portion spaced farthest from the oil communication hole 11 (i.e., at a portion diametrically opposed to the oil communication hole 11). The height of the other circumferential half is continuously decreased to the minimum height. That is, thecircumferential wall 6 b of thesecond core plate 506 has a constant height at the one of the two circumferential halves and a varying height continuously varied at the other thereof. Specifically, as shown inFIG. 19 , a plane on which an upper end of the one of the two circumferential halves is located is a plane P parallel with thebase wall 6 a, and a plane on which an upper end of the other of the two circumferential halves is located is inclined relative to the plane P. Furthermore, in theoil cooler 500 according to the fifth embodiment, the minimum height at a portion of the other circumferential half of thecircumferential wall 6 b is equal to the height of the respectivecircumferential walls core plates - Similarly to the
oil cooler 100 according to the first embodiment, the thus constructedoil cooler 500 according to the fifth embodiment as shown inFIG. 20 can serve for readily recognizing a position of thesecond core plate 506 in the oil cooler 500 from an outer appearance thereof even after brazing. - This application is based on a prior Japanese Patent Application No. 2011-139976 filed on Jun. 24, 2011. The entire contents of the Japanese Patent Application No. 2011-139976 are hereby incorporated by reference.
- Although the invention has been described above by reference to certain embodiments of the invention, the invention is not limited to the embodiments described above. Modifications and variations of the embodiments described above will occur to those skilled in the art in light of the above teachings. The scope of the invention is defined with reference to the following claims.
Claims (11)
1. An oil cooler comprising:
a plurality of core plates stacked on each other, the plurality of core plates each comprising a base wall and a circumferential wall formed along an entire outer periphery of the base wall, the circumferential wall being inclined relative to the base wall so as to outwardly extend from the entire outer periphery of the base wall, the circumferential walls of the core plates which are disposed adjacent to each other in a direction of stacking the core plates being bonded to each other, and
oil passages and cooling water passages alternately arranged in the direction of stacking the core plates, the respective oil passages and the respective cooling water passages being formed in a clearance between the base walls adjacent to each other in the direction of stacking the core plates,
wherein the core plates comprise at least a first core plate and a second core plate that is different from the first core plate in construction, and the circumferential wall of the second core plate has a height being varied along a circumferential direction of the base wall, and the circumferential wall of the second core plate is partially higher than the circumferential wall of the first core plate.
2. The oil cooler as claimed in claim 1 , wherein the height of the circumferential wall of the second core plate is continuously varied along the entire outer periphery of the base wall, and the circumferential wall of the second core plate has an upper end located on a plane.
3. The oil cooler as claimed in claim 2 , wherein the plane is inclined relative to a plane parallel with the base wall of the second core plate.
4. The oil cooler as claimed in claim 3 , wherein the base wall of the second core plate has a disk shape.
5. The oil cooler as claimed in claim 1 , wherein the circumferential wall of the second core plate comprises a portion at which the height is continuously varied, and the portion has an upper end located on a plane.
6. The oil cooler as claimed in claim 5 , wherein the plane is inclined relative to a plane parallel with the base wall of the second core plate.
7. The oil cooler as claimed in claim 5 , wherein the portion of the circumferential wall of the second core plate is a half range of the entire circumferential wall along the circumferential direction of the base wall.
8. The oil cooler as claimed in claim 6 , wherein the base wall of the second core plate has a disk shape.
9. The oil cooler as claimed in claim 5 , wherein the circumferential wall of the second core plate comprises a portion at which the height is held constant, the portion having an upper end located on a plane that lies on a plane parallel with the base wall.
10. The oil cooler as claimed in claim 1 , wherein the base wall of the first core plate comprises a pair of oil communication holes through which the oil passages are communicated with each other in the direction of stacking the core plates, and a pair of cooling water communication holes through which the cooling water passages are communicated with each other in the direction of stacking the core plates, the pair of oil communication holes being symmetrically arranged with respect to a center of the base wall,
the circumferential wall of the first core plate has a constant height over the entire outer periphery of the base wall of the first core plate, and
the base wall of the second core plate comprises one oil communication hole aligned with one of the pair of oil communication holes of the base wall of the first core plate, the base wall of the second core plate blocking a flow of oil passing through the other of the pair of oil communication holes of the base wall of the first core plate such that a direction of a flow of oil passing through the oil cooler is changed to a direction perpendicular to the direction of stacking the core plates.
11. The oil cooler as claimed in claim 1 , wherein the circumferential wall of the second core plate includes a portion at which the height is a minimum equal to a height of the circumferential wall of the first core plate.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-139976 | 2011-06-24 | ||
JP2011139976A JP5838048B2 (en) | 2011-06-24 | 2011-06-24 | Oil cooler |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120325446A1 true US20120325446A1 (en) | 2012-12-27 |
Family
ID=47360724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/336,368 Abandoned US20120325446A1 (en) | 2011-06-24 | 2011-12-23 | Oil cooler |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120325446A1 (en) |
JP (1) | JP5838048B2 (en) |
CN (1) | CN102840776A (en) |
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US20150211810A1 (en) * | 2012-08-01 | 2015-07-30 | Calsonic Kansei Corporation | Heat exchanger |
US20150292803A1 (en) * | 2012-11-07 | 2015-10-15 | Alfa Laval Corporate Ab | Method of making a plate package for a plate heat exchanger |
US20150300743A1 (en) * | 2012-12-10 | 2015-10-22 | Danfoss Micro Channel Heat Exchange (Jiaxing) Co. Ltd. | Plate heat exchanger |
US20160138873A1 (en) * | 2014-11-13 | 2016-05-19 | Hamilton Sundstrand Corporation | Round heat exchanger |
US20160187067A1 (en) * | 2014-12-26 | 2016-06-30 | Mahle Filter Systems Japan Corporation | Oil cooler |
US20170030661A1 (en) * | 2015-07-30 | 2017-02-02 | Mahle Filter Systems Japan Corporation | Heat exchanger |
USD798908S1 (en) * | 2016-03-31 | 2017-10-03 | D&J Diesel Performance And Repair, Llc | Oil cooler plate |
US10207376B2 (en) | 2013-08-22 | 2019-02-19 | Mahle Filter Systems Japan Corporation | Heat exchanger |
US10228192B2 (en) | 2015-12-28 | 2019-03-12 | Mahle Filter Systems Japan Corporation | Heat exchanger |
US11118842B2 (en) * | 2018-08-09 | 2021-09-14 | Rinnai Corporation | Heat exchanger with a plurality of non-communicating gas vents |
DE102018110370B4 (en) | 2017-11-28 | 2023-06-07 | Hanon Systems | Heat exchanger for a vehicle |
WO2024110123A1 (en) * | 2022-11-22 | 2024-05-30 | Mahle International Gmbh | Oil cooler |
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JP6126358B2 (en) * | 2012-11-08 | 2017-05-10 | 株式会社マーレ フィルターシステムズ | Multi-plate oil cooler |
JP6153818B2 (en) * | 2013-08-27 | 2017-06-28 | 株式会社ティラド | Oil cooler |
JP6986431B2 (en) * | 2017-12-14 | 2021-12-22 | 株式会社マーレ フィルターシステムズ | Oil cooler |
KR102562748B1 (en) * | 2018-12-27 | 2023-08-02 | 한온시스템 주식회사 | Heat exchange moudle plate type heat exchanger |
JP7215280B2 (en) * | 2019-03-26 | 2023-01-31 | 株式会社アイシン | oil cooler |
JP7431599B2 (en) | 2020-02-07 | 2024-02-15 | マーレジャパン株式会社 | How to braze a heat exchanger |
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US20150292803A1 (en) * | 2012-11-07 | 2015-10-15 | Alfa Laval Corporate Ab | Method of making a plate package for a plate heat exchanger |
US20150300743A1 (en) * | 2012-12-10 | 2015-10-22 | Danfoss Micro Channel Heat Exchange (Jiaxing) Co. Ltd. | Plate heat exchanger |
US10605534B2 (en) * | 2012-12-10 | 2020-03-31 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Plate heat exchanger |
US10207376B2 (en) | 2013-08-22 | 2019-02-19 | Mahle Filter Systems Japan Corporation | Heat exchanger |
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USD798908S1 (en) * | 2016-03-31 | 2017-10-03 | D&J Diesel Performance And Repair, Llc | Oil cooler plate |
DE102018110370B4 (en) | 2017-11-28 | 2023-06-07 | Hanon Systems | Heat exchanger for a vehicle |
US11118842B2 (en) * | 2018-08-09 | 2021-09-14 | Rinnai Corporation | Heat exchanger with a plurality of non-communicating gas vents |
WO2024110123A1 (en) * | 2022-11-22 | 2024-05-30 | Mahle International Gmbh | Oil cooler |
Also Published As
Publication number | Publication date |
---|---|
JP5838048B2 (en) | 2015-12-24 |
CN102840776A (en) | 2012-12-26 |
JP2013007516A (en) | 2013-01-10 |
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Owner name: MAHLE FILTER SYSTEMS JAPAN CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WAKAMATSU, SHOZO;ARIYAMA, MASAHIRO;SATO, JUNKO;SIGNING DATES FROM 20120126 TO 20120215;REEL/FRAME:027826/0376 |
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