WO2017018431A1 - 水冷エアークーラの取付構造 - Google Patents

水冷エアークーラの取付構造 Download PDF

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Publication number
WO2017018431A1
WO2017018431A1 PCT/JP2016/071940 JP2016071940W WO2017018431A1 WO 2017018431 A1 WO2017018431 A1 WO 2017018431A1 JP 2016071940 W JP2016071940 W JP 2016071940W WO 2017018431 A1 WO2017018431 A1 WO 2017018431A1
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WIPO (PCT)
Prior art keywords
casing
water
opening
mounting structure
cooled air
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PCT/JP2016/071940
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English (en)
French (fr)
Inventor
小野　純
小室　朗
大久保　厚
喜彦 佐々木
吉野　靖
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株式会社ティラド
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Priority to EP16830536.5A priority Critical patent/EP3327396B1/en
Priority to JP2017530890A priority patent/JP6755871B2/ja
Publication of WO2017018431A1 publication Critical patent/WO2017018431A1/ja

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10268—Heating, cooling or thermal insulating means
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • F28D1/0341—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies
    • 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
    • F28D2021/0082—Charged air coolers
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a mounting structure for a water-cooled air cooler.
  • the conventional water-cooled air cooler includes a plurality of flat tubes 1, and an air passage 2 is formed between the flat tubes 1 to constitute a core 3. And the end cover 4 is attached to the edge part of the lamination direction, and the main body of a cooler is formed. Then, the core 3 is inserted from the opening of the casing 6, and the end lid 4 is fixed to the opening of the casing 6. An annular groove 25 into which the sealing O-ring 10 is fitted is formed at the opening edge of the casing 6, and the thickness of the casing 6 is increased by that much. Cooling water is supplied into each flat tube 1, and air 12 for cooling is supplied to the air passage 2 between the flat tubes 1, and heat exchange is performed between the cooling water and the air.
  • an object of the present invention is to improve the air flow in the vicinity of the end lid 4.
  • a plurality of flat tubes (1) are arranged in parallel, and an air passage (2) is arranged between the flat tubes (1) to form a core (3).
  • An end lid (4) is arranged at one end in the parallel direction of (1) to constitute the main body (26) of the cooler,
  • the core (3) is housed inside and has a casing (6) provided with an opening (5) on the outer periphery, and the end cover (4) is attached to the opening (5),
  • the front edge (5a) in the depth direction of the opening (5) of the casing (6) and the bottom surface (4a) of the end lid (4) are flush with each other, or the bottom surface (4a) is the front edge ( It is the attachment structure of the water cooling air cooler arrange
  • the end cover (4) includes an outer flange portion (7) provided on the four circumferences thereof, and a flat recess (8) recessed in the depth direction from the outer flange portion (7).
  • (7) is a water-cooled air cooler mounting structure formed so as to be fixed to the hole edge (9) of the opening (5).
  • an annular groove (25) into which a sealing O-ring (10) is fitted is formed on the hole edge on the outer surface side of the opening (5), and the opening (
  • This is a water-cooled air cooler mounting structure in which the thickness of 5) is formed thicker and the bottom surface (4a) protrudes to the inside of the casing (6) at least for the entire thickness.
  • the front end edge 5a in the depth direction of the opening 5 of the casing 6 and the bottom surface 4a of the end lid 4 are flush with each other, or the bottom surface 4a is disposed inside the casing 6 from the front end edge 5a. Therefore, air can be smoothly circulated through the air passage 2 in the vicinity of the end lid 4 to promote heat exchange.
  • the structure is simple. Air can be smoothly circulated through the air passage 2 adjacent to the end lid 4 to promote heat exchange.
  • the opening is formed thicker by the depth of the annular groove 25 for the O-ring 10, and the bottom surface 4 a protrudes to the inside of the casing 6 by the total thickness.
  • the air can be smoothly circulated and heat exchange can be promoted while ensuring the sealing performance.
  • FIG. 1 is a cross-sectional view of the water-cooled air cooler mounting structure of the present invention, and is a view taken along the line II-II in FIG.
  • FIG. 2 is an exploded perspective view of the mounting structure.
  • 3 is a view taken in the direction of arrows III-III in FIG.
  • FIG. 4 is a cross-sectional view of a conventional water-cooled air cooler mounting structure.
  • the water-cooled air cooler of the present invention has a structure in which a main body 26 of the cooler is inserted into the casing 6 and assembled by an end lid attached to the upper end of the main body.
  • the core 3 is formed by a laminated body of the flat tubes 1 having the bulging portion 22 at one end in the longitudinal direction, and the end lid 4 is disposed at the upper end in the stacking direction of the core 3.
  • the end cover 4 is provided with an outer flange portion 7 on the periphery, and has a concave portion 8 that is flat from the outer flange portion 7 in the depth direction of the casing 6.
  • Bolt holes 18 are formed in the outer periphery of the outer flange portion 7.
  • the flat tube 1 has a pair of plates 1a facing each other in opposite directions.
  • Each plate 1a has a bulging portion 22 at one end in the longitudinal direction, a pair of communication holes 24 is formed there, and a partitioning portion 16 is provided in the middle in the width direction.
  • only one plate 1 a is directly joined to the lower surface of the end lid 4 at the upper end position in the stacking direction of the flat tubes 1.
  • only one plate 1 a is joined to the lower end plate 23 at the lower end in the stacking direction.
  • each flat tube 1 is brazed integrally by the bulging part 22 of the edge part of the longitudinal direction.
  • an air passage 2 is formed between the outer surfaces of the flat tubes 1.
  • An opening 5 is formed on the outer periphery of the casing 6, and the end lid 4 is fitted into the opening 5 so that the core 3 is accommodated in the casing 6.
  • the lower end plate 23 positioned at the lower end of the flat tube 1 in the stacking direction is fitted into a groove provided on the bottom of the casing 6.
  • An annular groove 25 is formed at the opening edge of the opening 5 of the casing 6, and the O-ring 10 is fitted therein.
  • the bolt holes 18 provided in the outer flange portion 7 are aligned with the bolt holes 18 provided in the casing 6, and the bolts 11 are screwed into the bolt holes 18, whereby the casing 6 and the main body 26 are integrated. It becomes.
  • the bottom surface 4a of the end lid 4 and the tip edge 5a of the opening 5 are arranged flush with each other.
  • the bottom surface 4 a is the same as the position formed thick in the depth direction by the annular groove 25 of the casing 6. Therefore, the air 12 flowing in from one air manifold 13 of the casing 6 flows smoothly through the air passage 2 adjacent to the bottom surface 4a without being obstructed by the front edge 5a of the opening 5.
  • the bottom surface 4a and the tip edge 5a of the opening 5 are formed flush with each other, but the bottom surface 4a may be positioned further downward in FIG. Cooling water 15 is supplied to each flat tube 1 and the plate 1 a via the cooling water manifold 14.
  • the cooling water 15 makes a U-turn around the partition 16 and is guided from one communication hole 24 to the other communication hole 24. Heat exchange is performed between the cooling water 15 and the air 12. Then, the cooled air 12 is guided from the air manifold 13 of the casing 6 to the outlet 20.
  • the manifold on the inlet 21 side of the casing 6 is formed in a trapezoidal shape in plan view, and a plurality of outlets 20 are arranged on the outlet side via partitioning portions.
  • the said embodiment although it has set as the structure which does not provide anything in the air passage 2 between each flat tube 1 laminated
  • the fin is disposed so as to contact the outer surface side of the flat tube and is integrally brazed in the furnace.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

ケーシング（６）の開口部（５）に端蓋（４）が固定され、その内部にコアが配置される水冷エアークーラの取付構造において、コア（３）を構成する全ての偏平チューブ（１）間にエアー（１２）を円滑に流通させる。端蓋（４）として、外周に外フランジ部（７）を有し、その外フランジ部（７）の内側に平坦な凹部を形成し、外フランジ部（７）の底面（４ａ）を、ケーシング（６）の開口部（５）の先端縁（５ａ）と面一又はそれよりも内側に配置する。

Description

水冷エアークーラの取付構造
　本発明は、水冷エアークーラの取付構造に関する。
　従来の水冷エアークーラは、図４に示す如く、多数の偏平チューブ１を積層し、各偏平チューブ１間にエアー通路２を形成してコア３を構成する。そして、その積層方向の端部に端蓋４を取付けてクーラの本体を形成する。そして、コア３をケーシング６の開口から挿入し、端蓋４をケーシング６の開口に固定する。
　ケーシング６の開口縁には、シール用のＯリング１０が嵌着される環状溝２５が形成され、その分だけ開口縁はケーシング６の厚みが厚くなっている。そして、各偏平チューブ１内に冷却水が供給されると共に、偏平チューブ１間のエアー通路２に被冷却用のエアー１２が供給され、冷却水とエアーとの間に熱交換が行われる。
特開２０１４−９８４９６号公報
　しかし、図４の端蓋４の近傍において、端蓋４に隣接するエアー通路２にはエアー１２が流通し難くなっている。そのため、端蓋４の近傍での熱交換量が小さくなり、全体として熱交換量が低下する欠点があった。
　そこで、本発明は端蓋４の近傍のエアーの流通を改善することを課題とする。
　請求項１に記載の本発明は、複数の偏平チューブ（１）が並列されると共に、各偏平チューブ（１）間にエアー通路（２）が配置されてコア（３）を形成し、偏平チューブ（１）の並列方向の一端に端蓋（４）が配置されてクーラの本体（２６）を構成し、
　そのコア（３）が内部に収納されると共に、外周に開口部（５）が設けられたケーシング（６）を有し、その開口部（５）に前記端蓋（４）が被着され、偏平チューブ（１）の平面に平行に、被冷却用エアーが導かれる水冷エアークーラの取付構造において、
　前記ケーシング（６）の開口部（５）の深さ方向の先端縁（５ａ）と、前記端蓋（４）の底面（４ａ）とが面一または、その底面（４ａ）が前記先端縁（５ａ）よりケーシング（６）の内側に配置された水冷エアークーラの取付構造である。
　請求項２に記載の本発明は、請求項１に記載の水冷エアークーラの取付構造において、
　前記端蓋（４）は、その四周に設けた外フランジ部（７）と、その外フランジ部（７）から前記深さ方向に凹陥した平坦な凹部（８）とを具備し、外フランジ部（７）が前記開口部（５）の孔縁（９）に固定されるように形成された水冷エアークーラの取付構造である。
　請求項３に記載の本発明は、請求項２に記載の水冷エアークーラの取付構造において、
　前記開口部（５）の外面側の孔縁には、シール用のＯリング（１０）が嵌着する環状溝（２５）が形成され、その環状溝（２５）の深さ分、開口部（５）の厚みがより厚く形成され、少なくともその全厚み分、前記底面（４ａ）がケーシング（６）の内側に突出している水冷エアークーラの取付構造である。
　本発明の取付構造は、ケーシング６の開口部５の深さ方向の先端縁５ａと、端蓋４の底面４ａとを面一または、その底面４ａを先端縁５ａよりケーシング６の内側に配置したから、端蓋４の近傍のエアー通路２にもエアーを円滑に流通させて、熱交換を促進できる。
　請求項２に記載のように、上記構成において、端蓋４の四周に外フランジ部７を設け、そのフランジ部７から深さ方向に平坦な凹部８を形成した場合には、簡単な構造で端蓋４に近接したエアー通路２にエアーを円滑に流通させて、熱交換を促進できる。
　請求項３に記載のように、上記構成において、Ｏリング１０用の環状溝２５の深さ分、開口部の厚みがより厚く形成され、その全厚み分、底面４ａがケーシング６の内側に突出している場合には、シール性を確保しつつ、エアーを円滑に流通させて、熱交換を促進できる。
　図１は本発明の水冷エアークーラの取付構造の横断面図であって、図２のＩＩ−ＩＩ矢視図である。
　図２は同取付構造の分解斜視図である。
　図３は図２のＩＩＩ−ＩＩＩ矢視図である。
　図４は従来の水冷エアークーラの取付構造の横断面図である。
　次に、図面に基づいて本発明の実施の形態を説明する。
　本発明の水冷エアークーラは、クーラの本体２６をケーシング６に挿入し、本体の上端に取付けられた端蓋により、組み付けられる構造を有する。
　この本体２６は、長手方向の一端に膨出部２２を有する偏平チューブ１の積層体によりコア３を形成し、そのコア３の積層方向の上端に端蓋４を配置する。その端蓋４は、周縁に外フランジ部７が設けられ、その外フランジ部７からケーシング６の深さ方向に平坦な凹部８を有する。その外フランジ部７の外周には、ボルト孔１８が穿設されている。
　次に、偏平チューブ１は一対のプレート１ａを互いに逆向きに対向させたものである。
　各プレート１ａは、長手方向の一端に膨出部２２を有し、そこに一対の連通孔２４が形成されると共に、その幅方向中間に仕切部１６が設けられている。
　なお、この例では、偏平チューブ１の積層方向の上端位置には一枚のプレート１ａのみが直接、端蓋４の下面に接合される。同様に、積層方向の下端にも一枚のプレート１ａのみが、下端板２３に接合されている。
　そして、各偏平チューブ１がその長手方向の端部の膨出部２２で一体的にろう付けされる。図１及び図３に示すように、各偏平チューブ１の外面の間には、エアー通路２が形成される。
　ケーシング６の外周には開口部５が形成され、その開口部５に端蓋４が嵌着して、コア３がケーシング６の内部に収納される。この例では、偏平チューブ１の積層方向の下端に位置する下端板２３が、ケーシング６の底に設けた溝部に嵌着する。
　なお、ケーシング６の開口部５の開口縁には環状溝２５が形成され、そこにＯリング１０が嵌着される。
　そして、外フランジ部７に設けたボルト孔１８がケーシング６に設けられたボルト孔１８に整合され、それらのボルト孔１８にボルト１１が螺着されることにより、ケーシング６と本体２６とが一体化される。
　このとき、端蓋４の底面４ａと、開口部５の先端縁５ａとが面一に配置される。この底面４ａは、ケーシング６の環状溝２５によって深さ方向に厚く形成された位置と同一である。
　そのため、ケーシング６の一方のエアーマニホールド１３から流入したエアー１２は、底面４ａに隣接するエアー通路２内を開口部５の先端縁５ａに邪魔されることなく、円滑に流通する。
　この例では、底面４ａと開口部５の先端縁５ａとが面一に形成されているが、図１において底面４ａをさらに下方に位置させてもよい。
　各偏平チューブ１及びプレート１ａには、その冷却水マニホールド１４を介して冷却水１５が供給される。その冷却水１５は、仕切部１６の周りをＵターンし、一方の連通孔２４から他方の連通孔２４に導かれる。その冷却水１５とエアー１２との間に熱交換が行われる。
　そして、冷却されたエアー１２がケーシング６のエアーマニホールド１３から出口２０に導かれる。
　図２に示す如く、この例では、ケーシング６の入口２１側のマニホールドが平面視で台形状に形成され、その出口側に複数の出口２０が仕切部を介して配置されている。
　また、上記実施形態では、積層された各偏平チューブ１間のエアー通路２には何も備えない構成としているが、各エアー通路２にフィン（コルゲートフィン、オフセットフィン等）を介装する構成としてもよい。これにより、エアーの冷却効率を高めることができる。この場合、フィンは偏平チューブの外面側に接触するように配置され、炉内で一体的にろう付けされる。
　１　偏平チューブ
　１ａ　プレート
　２　エアー通路
　３　コア
　４　端蓋
　４ａ　底面
　５　開口部
　５ａ　先端縁
　６　ケーシング
　７　外フランジ部
　８　凹部
　９　孔縁
　１０　Ｏリング
　１１　ボルト
　１２　エアー
　１３　エアーマニホールド
　１４　冷却水マニホールド
　１５　冷却水
　１６　仕切部
　１７　パイプ
　１８　ボルト孔
　２０　出口
　２１　入口
　２２　膨出部
　２３　下端板
　２４　連通孔
　２５　環状溝
　２６　本体

Claims (3)

  1. 　複数の偏平チューブ（１）が並列されると共に、各偏平チューブ（１）間にエアー通路（２）が配置されてコア（３）を形成し、偏平チューブ（１）の並列方向の一端に端蓋（４）が配置されてクーラの本体（２６）を構成し、
    　そのコア（３）が内部に収納されると共に、外周に開口部（５）が設けられたケーシング（６）を有し、その開口部（５）に前記端蓋（４）が被着され、偏平チューブ（１）の平面に平行に、被冷却用エアーが導かれる水冷エアークーラの取付構造において、
    　前記ケーシング（６）の開口部（５）の深さ方向の先端縁（５ａ）と、前記端蓋（４）の底面（４ａ）とが面一または、その底面（４ａ）が前記先端縁（５ａ）よりケーシング（６）の内側に配置された水冷エアークーラの取付構造。
  2. 　請求項１に記載の水冷エアークーラの取付構造において、
    　前記端蓋（４）は、その四周に設けた外フランジ部（７）と、その外フランジ部（７）から前記深さ方向に凹陥した平坦な凹部（８）とを具備し、外フランジ部（７）が前記開口部（５）の孔縁（９）に固定されるように形成された水冷エアークーラの取付構造。
  3. 　請求項２に記載の水冷エアークーラの取付構造において、
    　前記開口部（５）の外面側の孔縁には、シール用のＯリング（１０）が嵌着する環状溝（２５）が形成され、その環状溝（２５）の深さ分、開口部（５）の厚みがより厚く形成され、少なくともその全厚み分、前記底面（４ａ）がケーシング（６）の内側に突出している水冷エアークーラの取付構造。
PCT/JP2016/071940 2015-07-24 2016-07-19 水冷エアークーラの取付構造 WO2017018431A1 (ja)

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EP3327396A4 (en) 2019-03-06

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