JPH11287114A - Cooling element of oil cooler for vehicle - Google Patents

Cooling element of oil cooler for vehicle

Info

Publication number
JPH11287114A
JPH11287114A JP10104167A JP10416798A JPH11287114A JP H11287114 A JPH11287114 A JP H11287114A JP 10104167 A JP10104167 A JP 10104167A JP 10416798 A JP10416798 A JP 10416798A JP H11287114 A JPH11287114 A JP H11287114A
Authority
JP
Japan
Prior art keywords
plate
sides
hole
flange
cooling element
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.)
Granted
Application number
JP10104167A
Other languages
Japanese (ja)
Other versions
JP3896515B2 (en
Inventor
Takayuki Ichihara
孝之 市原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Filter Systems Japan Corp
Original Assignee
Tennex Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tennex Corp filed Critical Tennex Corp
Priority to JP10416798A priority Critical patent/JP3896515B2/en
Publication of JPH11287114A publication Critical patent/JPH11287114A/en
Application granted granted Critical
Publication of JP3896515B2 publication Critical patent/JP3896515B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007Auxiliary supports for elements
    • F28F9/0075Supports for plates or plate assemblies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031Heat-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
    • F28D9/0043Heat-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089Oil coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00Reinforcing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10Particular pattern of flow of the heat exchange media
    • F28F2250/104Particular pattern of flow of the heat exchange media with parallel flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

PROBLEM TO BE SOLVED: To hardly generate rocking in a cooling element of oil cooler for a vehicle and prevent a fin plate and a plate member surrounding same from being damaged even if vibration of an engine and pulsation of oil as well as dynamic pressure of cooling water are applied thereto at the time of use. SOLUTION: A fin plate 13 is provided between a first plate 11 in a downward disc shape haivng an upward pipe part 11a and a second plate in an upward disc shape having a downward pipe part 12a and serves as a unit plate member. An upward pipe part 11a at an upper stage is fitted to a downward pipe part 12a at an upper stage, and an interval ring 14 is fitted thereto, whereby unit plate members are stacked in multiple stages and fixed. A flange 15 having a center through hole 15a is fixed onto the upper most first plate 11. A semi-circle type column part 16b of a reinforcing member 16 is inserted into an oil distribution hole formed of apertures of the first plate 11, second plate 12 and fin plate 13. An end of the column part 16b is fitted into and fixed to the center through hole. With the constitution, a cooling element is given rigidity.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は車両の軽量化に役
立つと共に剛性を備えて破損しにくいように改良したオ
イルクーラの冷却エレメントに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling element for an oil cooler, which is useful for reducing the weight of a vehicle, has rigidity and is hardly damaged.

【0002】[0002]

【従来の技術】バス、トラック及び産業車両等に搭載さ
れるディーゼルエンジンでは図7のようにエンジンブロ
ックBの側面にオイルクーラOcを配設し、その冷却エ
レメントOeを図8(a)のようにエンジンブロックB
の側壁から突出させてシリンダ周囲のウォータジャケッ
トBaに臨ませる(いわゆる外置き型)か、又は同図
(b)のように側壁内に埋込んでウォータジャケットB
aに臨ませる(いわゆる内蔵型)かし、ラジエータRか
らポンプPにより循環させられる冷却水を実線矢印のよ
うに取入れる一方、オイルOpからエンジンの摺動部分
や軸受部分に送られるオイルを点線矢印のように対向さ
せて取入れて熱交換させ、オイルの温度を所定に保つよ
うにしている。
2. Description of the Related Art In a diesel engine mounted on a bus, truck, industrial vehicle or the like, an oil cooler Oc is disposed on the side of an engine block B as shown in FIG. 7 and its cooling element Oe is arranged as shown in FIG. Engine block B
(So-called external type) by projecting from the side wall of the cylinder and facing the water jacket Ba around the cylinder, or embedded in the side wall as shown in FIG.
a (so-called built-in type), while the cooling water circulated by the pump P is taken in from the radiator R as shown by the solid arrow, and the oil sent from the oil Op to the sliding portion and the bearing portion of the engine is shown by the dotted line. As shown by the arrows, they are taken in opposite directions to exchange heat and keep the oil temperature at a predetermined level.

【0003】その外置き型のオイルクーラOcの一例を
示せば図9のとおりであり、多板式の冷却エレメントE
と、これをおおいエンジンロックBに取付ける帽子状の
カバー体Cからなり、カバー体Cは肉厚が5ないし10
mm程度のアルミニウム鋳物製で、平面長方形又は楕円
形をなし、開放端部周辺にフランジ部Cfを備え、一側
壁には冷却水の取入れ口Caが設けられ、上壁にはオイ
ルの入口Cbが冷却水の取入れ口Caの反対側にはあ
り、出口Cdが同じ側にあるように設けられている。
FIG. 9 shows an example of the externally mounted oil cooler Oc, which is a multi-plate type cooling element E.
And a cap-shaped cover C for attaching the cover C to the engine lock B. The cover C has a thickness of 5 to 10 mm.
mm of aluminum casting, has a flat rectangular or elliptical shape, is provided with a flange portion Cf around the open end, a cooling water intake Ca is provided on one side wall, and an oil inlet Cb is provided on the upper wall. The cooling water intake port Ca is provided on the opposite side, and the outlet Cd is provided on the same side.

【0004】一方、多板式の冷却エレメントEはこれま
ではステンレス鋼板製であったが、最近では車両の軽量
化とコスト低減のためにアルミニウム製とすることが進
められており、平面形状をカバー体Cと同じくする下向
き皿状の第1プレート1と上向き皿状の第2プレート2
及び両者の間に配設される多孔のフィンプレート3から
なるが、第1,第2のプレート1,2は厚さが0.5ない
し0.7mm程度のアルミニウム心板(例えばAl−Mn
系、JIS.3003)も一面(オイルに接する面)に
厚さが0.1ないし0.2mm程度のろう材層(例えばAl−
Si合金、JIS.4045,4343)が被着される
と共に他面(冷却水に接する面)には腐食防止と他部材
の接合を考慮して厚さが0.1ないし0.2mm程度の犠牲腐
食材層(例えばAl−Zn系合金、JIS.7072)
とその上に上記ろう材層が被着されてアルミニウムのク
ラッド材をなしており、又フィンプレート3は上記アル
ミニウム心板の両面にろう材質が被着されたクラッド材
をなしている。
On the other hand, the multi-plate type cooling element E has been made of a stainless steel plate until now, but recently, it has been made of aluminum in order to reduce the weight and cost of the vehicle, and the flat shape of the cooling element E has been increased. A downward plate-like first plate 1 and an upward plate-like second plate 2 similar to the body C
And a porous fin plate 3 disposed between the two, and the first and second plates 1 and 2 have an aluminum core plate (for example, Al-Mn) having a thickness of about 0.5 to 0.7 mm.
System, JIS. 3003) also has a brazing material layer having a thickness of about 0.1 to 0.2 mm (for example, Al-
Si alloy, JIS. 4045, 4343) and a sacrificial corrosive material layer (for example, Al-Zn) having a thickness of about 0.1 to 0.2 mm on the other surface (the surface in contact with the cooling water) in consideration of corrosion prevention and joining of other members. System alloy, JIS.7072)
And the above-mentioned brazing material layer is adhered thereon to form an aluminum cladding material, and the fin plate 3 is a cladding material in which a brazing material is adhered to both surfaces of the aluminum core plate.

【0005】そして、第1プレート1は長手方向の両側
部にカバー体Cのオイル入口Cb又は出口Cdに整列す
る上向きパイプ部1aを備えると共に周辺につば部1b
を持ち、最上段以外のものは上面にプレス加工した多数
の間隔維持用の突子1cを有し、又第2プレート2は最
下段のものを除いて長手方向の両側部に下向きパイプ部
2aを備えると共に周辺につば部2bを持ち、かつ下面
には多数の間隔維持用の突子2cを有している。フィン
プレート3は図10のように各折りひだ片の側面に多数
の通孔を有すると共に長手方向の両側部にはカバー体の
オイルの入,出口Cb,Cdに整列する円形の窓孔3a
が穿設されている。
[0005] The first plate 1 is provided with an upward pipe portion 1a aligned with the oil inlet Cb or the outlet Cd of the cover body C on both sides in the longitudinal direction, and a flange portion 1b around the periphery.
Other than the uppermost row, the upper surface has a large number of spacing-maintaining protrusions 1c formed on the upper surface, and the second plate 2 has a downward pipe section 2a on both sides in the longitudinal direction except for the lowermost row. And has a flange 2b around the periphery, and a number of protrusions 2c for maintaining the interval on the lower surface. As shown in FIG. 10, the fin plate 3 has a large number of through holes on the side surfaces of each folded piece, and circular window holes 3a aligned with the oil inlet and outlet Cb and Cd of the cover on both sides in the longitudinal direction.
Are drilled.

【0006】第1プレート1と第2プレート2は内側に
フィンプレート3を介在させつつ向い合せて熱交換用の
単位プレート部材となし、上段の単位プレート部材の第
2プレート2の下向きパイプ部2aに下段の単位プレー
ト部材の第1プレート1の上向きパイプ部1aを嵌挿
し、かつその外側にアルミニウム(例えばAl−Mn系
合金、JIS.3003)製の間隔リング4嵌め合せな
がら複数段積層し、最上段の第1プレート1の上向きパ
イプ部1aにはアルミニウム(例えばAl−Mn系合
金、JIS.3003) 製菱形状の肉厚なカバー体結合
用のフランジ5の中央通孔5aを嵌合し、最下段の第2
プレート2の両側部下面には同じアルミニウム製の補強
用のプレート6(厚さ3ないし5mm)を添設し、それ
ら全体が炉中でろう付けされて冷却エレメントEをなし
ている。
The first plate 1 and the second plate 2 face each other with a fin plate 3 interposed therebetween to form a unit plate member for heat exchange, and a downward pipe portion 2a of the second plate 2 of the upper unit plate member. The upper plate portion 1a of the first plate 1 of the lower unit plate member is fitted into the lower stage plate member, and a plurality of stages are laminated while fitting a spacing ring 4 made of aluminum (for example, an Al-Mn alloy, JIS.3003) to the outside thereof, The upper through-hole 1a of the first plate 1 at the uppermost stage is fitted with a central through hole 5a of a thick flange 5 for connecting a diamond-shaped thick cover body made of aluminum (for example, an Al-Mn alloy, JIS.3003). 2nd at the bottom
The same aluminum reinforcing plate 6 (thickness 3 to 5 mm) is attached to the lower surface on both sides of the plate 2, and the whole of them is brazed in a furnace to form a cooling element E.

【0007】上記のような冷却エレメントEがカバー体
C内に収容され、両側のフランジ5の上にシール用のガ
スケット8を介在させると共にその中央通孔5aをオイ
ルの入口Cb又は出口Cdに合せつつカバー体Cの上壁
内面に当接され、各フランジ5の一対のねじ孔に鉄製の
ボルト7がねじ込まれてカバー体Cに組付けられ、又カ
バー体Cの開放端部に冷却水ガイド用のステンレス鋼板
製の仕切板9がビス止めされてオイルクーラOcをな
し、このオイルクーラOcはカバー体周辺のフランジ部
Cfが複数箇所においてガスケット8介在のもとにボル
ト7によりエンジンブロックBの壁面に取付けられる。
The above-described cooling element E is housed in the cover body C, and a gasket 8 for sealing is interposed on the flanges 5 on both sides, and the central through hole 5a is aligned with the oil inlet Cb or the oil outlet Cd. An iron bolt 7 is screwed into a pair of screw holes of each flange 5 to be mounted on the cover C, and is attached to the open end of the cover C for cooling water guide. A stainless steel plate partition plate 9 is screwed to form an oil cooler Oc. The oil cooler Oc has a plurality of flanges Cf around the cover body at a plurality of locations with a gasket 8 interposed therebetween by bolts 7 and wall surfaces of the engine block B. Attached to

【0008】その使用時には、オイルパンから吸い上げ
られたオイルがカバー体Cの入口CbからエレメントE
の各単位プレート部材中に流入する一方、ラジエータ側
の冷却水が反対側の取入れ口Caから導入され、各単位
プレート部材同士の間隙及び周囲を流れてオイルとの熱
交換が行われ、冷却されたオイル出口Cdからエンジン
の摺動部や軸受部に送られ、冷却水は仕切板9の反対側
に設けられた流出口9aからウォータジャケットBaに
出てシリンダー周面に流れていく。
In use, the oil sucked up from the oil pan flows from the inlet Cb of the cover C to the element Eb.
While cooling water flows into each unit plate member, cooling water on the radiator side is introduced from the intake Ca on the opposite side, flows through gaps between and around the unit plate members, exchanges heat with oil, and is cooled. The cooling water is sent from the oil outlet Cd to the sliding portion and the bearing portion of the engine, and the cooling water flows out from the outlet 9a provided on the opposite side of the partition plate 9 to the water jacket Ba and flows to the cylinder peripheral surface.

【0009】[0009]

【発明が解決しようとする課題】 ところ
で、使用中には冷却エレメントEにエンジンの振動や冷
却水の動圧及びポンプアップされるオイルの脈動圧が作
用することになり、そのため、積層プレート部はフラン
ジ5に対する固着部を基点として左右前後に微細に揺動
する状態になり、その影響で剛性の小さいフィンプレー
ト3の窓孔3aの周縁部に亀裂が生じ易く、これを原因
として第1,第2のプレート1,2が変形したり、破断
したりして、オイル洩れを引き起こす恐れがある。
During use, the vibration of the engine, the dynamic pressure of the cooling water, and the pulsating pressure of the oil to be pumped up act on the cooling element E. A state in which the fin plate 3 swings finely right and left and back and forth with the fixing portion to the flange 5 as a base point, and cracks are easily generated in the peripheral portion of the window hole 3a of the fin plate 3 having low rigidity due to the influence thereof. The plates 1 and 2 may be deformed or broken, causing oil leakage.

【0010】そこで、この発明は冷却エレメントが使用
中に、エンジンの振動や冷却水の動圧及びオイルの脈動
を受けたにしても、揺動しにくくすると共にフィンプレ
ートに亀裂を生ぜず、第1,第2プレートの破損を招く
ことなくオイル洩れを起こさないようにすることを課題
とする。
Therefore, the present invention makes it difficult for the cooling element to oscillate and does not cause cracks in the fin plate even if it is subjected to vibration of the engine, dynamic pressure of the cooling water and pulsation of oil during use of the cooling element. An object is to prevent oil leakage without causing damage to the first and second plates.

【0011】[0011]

【課題を解決するための手段】上記課題のもとにこの発
明は車両用オイルクーラの冷却エレメントとして、第1
に、両側部に上向きパイプ部を有する下向き皿状の第1
プレートと両側部に下向きパイプ部を有する上向き皿状
の第2プレートとの間に、両側部に窓孔を有する波状多
孔のフィンプレートを介させた単位プレート部材を両側
部に間隔リングを介在させて複数段に積層固定し、最上
段の第1プレート上の両側部には中央通孔を有するブロ
ック状のフランジを固着し、各第1プレートの上向きパ
イプ部と第2プレートの下向きパイパ及び各インプレー
トの窓孔で形成されるオイルの流通孔には基板部と半円
状の柱部からなる補強部材の柱部を下側からそれぞれ挿
通し、各基板部を最下段の第2プレートの両側部下面に
固着すると共に各柱部の先端部を上記フランジの中央通
孔に嵌合固定するようにしたことを特徴とし、第2に
は、両側部に上向きパイプ部を有する下向き皿状の第1
プレートと両側部に下向きパイプ部を有する上向き皿状
の第2プレートとの間に、両側部に窓孔を有する波状多
孔のフィンプレートを介在させると共にフィンプレート
の両側窓孔部に肉厚な補強用の半円状体を配設して単位
プレート部材となし、この単位プレート部材を両側部に
間隔リングを介在させて複数段に積層固定し、最上段の
第1プレート上の両側部には中央通孔を有するブロック
状のフランジを固着し、各第1プレートの上向きパイプ
部と第2プレートの下向きパイプ部及び各プレートの半
円状体を介在させた窓孔とでフランジの中央通孔に通じ
るオイルの流通孔を形成し、最下段の第2プレートの下
面両側部には補強基板を固着したことを特徴とし、第3
には、上記第1プレート,第2プレート及びフィンプレ
ートをアルミニウムのクラッド材で形成すると共に上記
間隔リング,フランジ及び補強部材をアルミニウムで形
成したことを特徴とするものである。
SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a first cooling element for an oil cooler for a vehicle.
And a first dish-shaped downward dish having upward pipe sections on both sides.
A unit plate member having a wavy porous fin plate having window holes on both sides is interposed between the plate and a second upward plate-shaped second plate having a downward pipe portion on both sides, and a spacing ring is interposed on both sides. And a block-like flange having a central through hole is fixed to both sides of the uppermost first plate, and an upward pipe portion of each first plate, a downward pipe of the second plate, and each inner plate. The pillars of the reinforcing member consisting of the board and the semicircular pillar are inserted from below into the oil flow holes formed by the window holes of the plate, and each board is passed through both sides of the lowermost second plate. The lower end of each column is fixed to the center through hole of the flange, and the first end of each column has a downward dish-shaped first portion having an upward pipe portion on both sides.
A corrugated fin plate having window holes on both sides is interposed between the plate and an upward dish-shaped second plate having a downward pipe portion on both sides, and thick reinforcement is provided on both side window holes of the fin plate. A semi-circular body is provided to form a unit plate member, and the unit plate member is fixedly stacked and fixed in a plurality of stages with a spacing ring interposed on both sides, and on both sides on the uppermost first plate. A block-shaped flange having a central through hole is fixed, and an upward pipe portion of each first plate, a downward pipe portion of the second plate, and a window hole interposing a semicircular body of each plate communicate with the central through hole of the flange. The oil circulation hole is formed, and a reinforcing substrate is fixed to both sides of the lower surface of the lowermost second plate.
Is characterized in that the first plate, the second plate and the fin plate are formed of aluminum clad material, and the spacing ring, flange and reinforcing member are formed of aluminum.

【0012】[0012]

【発明の実施の形態】図1はこの発明に係る冷却エレメ
ントEの一例をカバー体Cに組付けた際の一部切断側面
を示し、図2はそのフィンプレート13と第1,第2の
プレート11,12及びフランジ15との関係を示す右
半部の平面を示し、図3は補強部材16を示す。冷却エ
レメントEは多板式のもので、平面長方形又は楕円形の
下向き皿状の第1プレート11と上向き皿状の第2プレ
ート12及び両者の間に配設される多孔波状のフィンプ
レート13からなり、第1,第2のプレート11,12
は厚さが0.5ないし0.7mm程度のアルミニウム心板(例
えばAl−Mn合金、JIS.3003)の一面(オイ
ルに接する面)に厚さが0.1ないし0.2mm程度のろう材
層(例えばAl−Zi系合金、JIS.4045,43
43)が被着されると共に他面(冷却水に接する面)に
は腐食防止と他部材との接合を考慮して厚さが0.1ない
し0.2mm程度の犠牲腐食材層(例えばAl−Zn系合
金、JIS.7072)とその上に上記ろう材質が被着
されて、肉厚が0.8ないし1mm程度のアルミニウムのク
ラッド材をなしており、フィンプレート13は上記アル
ミニウム心板の両面にろう材層が被着されて肉厚が0.7
ないし0.9mm程度のアルミニウムのクラッド材をなし
ている。
FIG. 1 shows a partially cut side view when an example of a cooling element E according to the present invention is assembled to a cover C. FIG. 2 shows the fin plate 13 and first and second fins. FIG. 3 shows a right half plane showing the relationship between the plates 11, 12 and the flange 15, and FIG. The cooling element E is of a multi-plate type, and includes a flat rectangular or elliptical downward dish-shaped first plate 11, an upward dish-shaped second plate 12, and a perforated fin plate 13 disposed therebetween. , First and second plates 11 and 12
Is a brazing material layer (for example, Al-Zi) having a thickness of about 0.1 to 0.2 mm on one surface (a surface in contact with oil) of an aluminum core plate (for example, Al-Mn alloy, JIS.3003) having a thickness of about 0.5 to 0.7 mm. Based alloy, JIS 4045, 43
43) and a sacrificial corrosive material layer (for example, Al-Zn based) having a thickness of about 0.1 to 0.2 mm on the other surface (the surface in contact with the cooling water) in consideration of corrosion prevention and bonding with other members. Alloy, JIS.7072) and the above brazing material is applied thereon to form an aluminum cladding material having a thickness of about 0.8 to 1 mm, and the fin plate 13 has a brazing material layer on both sides of the aluminum core plate. Is applied and the wall thickness is 0.7
Or about 0.9 mm of aluminum clad material.

【0013】第1プレート11は長手方向の両側部にカ
バー体Cのオイル入口Cb 又は出口Cdに整列する上向
きパイプ部11aを備えると共に周辺につば部11bを
持ち、最上段以外のものは上面にプレス加工した多数の
間隔維持用の突子11cを有し、又第2プレート12は
すべて長手方向の両側部に下向きパイプ部12aを備え
ると共に周辺につば部12bを持ち、下面には最下段の
ものを除いて多数のプレス加工による間隔維持用の突子
12cを有しており、フィンプレート13は図2のよう
に各折りひだ部の側面に多数の通孔を有すると共に長手
方向の両側部にはカバー体Cのオイルの入口,出口C
b,Cdに整列する円形の窓孔13aが設けられてい
る。
The first plate 11 is provided with an upwardly directed pipe portion 11a aligned with the oil inlet Cb or the outlet Cd of the cover body C on both sides in the longitudinal direction, and has a flange portion 11b around the periphery. The second plate 12 has a downwardly directed pipe portion 12a on both sides in the longitudinal direction, has a flange portion 12b on the periphery, and has a lowermost portion on the lower surface. The fin plate 13 has a large number of through-holes 12c for maintaining the interval by press working, and the fin plate 13 has a large number of through-holes on the side surface of each folded portion as shown in FIG. Is the oil inlet and outlet C of the cover body C
A circular window hole 13a aligned with b and Cd is provided.

【0014】第1プレート11と第2プレート12から
なる単位プレート部材間に介在される間隔リング14
(厚さ約3mm)と最上段の第1プレート11上の両側
部に配設される菱形ブロック状のフランジ15(厚さ約
10mm)はアルミニウム(例えばAl−Mn合金、J
IS.3003)からなり、フランジ15はカバー体の
オイルの入口Cb又は出口Cdに整列する段付けられた
中央孔15aを有すると共に図2のように両側部には段
付けられたボルト挿通孔15bが設けられ、そこには亜
鉛メッキした鉄製のボルト17が頭部を下にして貫通状
態に嵌め込まれ、下面には両面にろう材をクラッドした
アルミニウムからなるシール板19が取付けられてい
る。
Spacing ring 14 interposed between unit plate members consisting of first plate 11 and second plate 12
(Thickness: about 3 mm) and rhombic block-like flanges 15 (thickness: about 10 mm) disposed on both sides of the uppermost first plate 11 are made of aluminum (for example, Al-Mn alloy, J
IS. The flange 15 has a stepped central hole 15a aligned with the oil inlet Cb or outlet Cd of the cover body, and stepped bolt insertion holes 15b are provided on both sides as shown in FIG. A zinc-plated iron bolt 17 is fitted in a penetrating state with its head down, and a seal plate 19 made of aluminum clad with brazing material on both surfaces is attached to the lower surface.

【0015】又、最下段の第2プレート12の下面の両
側部に配設される補強部材16もアルミニウム(例えば
Al−Mn合金、JIS.3003)からなり、図3に
みられるように円形の基板部16aと半円形の柱部16
bで形成され、基板部16aは間隔リング14と直径及
び肉厚をほぼ同じくし、板面には最下段の第2プレート
12の下向きパイプ部12aが係合できる環状みぞ16
cを備えており、柱部16bは内向き開いた半円状をな
し、肉厚は約2mm程度で、内半径はオイルの入出口C
b,Cdの半径にほぼ一致し、かつ外半径は第1プレー
ト11の上向きパイプ部11aの上縁の内半径にほぼ一
致し、高さは組付け時においてフランジ15の段付中央
孔15aの半分高さに達するようになされている。
The reinforcing members 16 provided on both sides of the lower surface of the lowermost second plate 12 are also made of aluminum (for example, Al-Mn alloy, JIS.3003), and have a circular shape as shown in FIG. Substrate 16a and semicircular pillar 16
b, the substrate portion 16a has substantially the same diameter and thickness as the spacing ring 14, and the plate surface has an annular groove 16 with which the downward pipe portion 12a of the lowermost second plate 12 can be engaged.
c, the column 16b has a semicircular shape with an inward opening, a wall thickness of about 2 mm, and an inner radius of oil inlet / outlet C.
b, Cd, the outer radius substantially matches the inner radius of the upper edge of the upward pipe portion 11a of the first plate 11, and the height of the stepped central hole 15a of the flange 15 at the time of assembly. It is made to reach half height.

【0016】そこで、第1プレート11と第2プレート
12は内側にフィンプレート13を介在させながら向い
合せて熱交換用の単位プレート部材となし、上段の単位
プレート部材の第2プレート2の下向きパイプ部2aに
下段の単位プレート部材の第1プレート11の上向きパ
イプ部1aを嵌挿し、かつその外側に間隔リング14を
嵌め合せながら複数段積層し、その後、両側部において
上向き,下向きパイプ部11a,12aの嵌合関係で形
成される孔部に、補強部材16の半円状の柱部16bを
下側からそれぞれ挿通し、かつ基板部16aに設けた位
置決め用の環状みぞ16cに最下段の第2プレートの下
向きパイプ部12aをそれぞれ係合させて基板部16a
をプレート下面に当接させ、次いで、最上段の第1プレ
ート11の両側部上に、プレートから突出している上向
きパイプ11aと補強部材の柱部16bに段付中央通孔
15aを嵌め合せつつボルト付のフランジ15をそれぞ
れ配設し、その際、柱部16bの先端部と中央通孔15
aとの間にろう材を介在させ、このようにした全体が炉
中でろう付けされて冷却エレメントEをなしている。
Therefore, the first plate 11 and the second plate 12 face each other with the fin plate 13 interposed therebetween to form a unit plate member for heat exchange, and the downward pipe of the second plate 2 of the upper unit plate member is formed. The upward pipe portion 1a of the first plate 11 of the lower unit plate member is inserted into the portion 2a, and a plurality of layers are laminated while fitting the spacing ring 14 outside thereof, and thereafter, the upward and downward pipe portions 11a, The semicircular pillar portions 16b of the reinforcing member 16 are inserted from below into the holes formed in the fitting relationship of 12a, respectively, and the lowermost first groove 16c is inserted into the positioning annular groove 16c provided in the substrate portion 16a. The downwardly facing pipe portions 12a of the two plates are engaged with each other to
Abuts on the lower surface of the plate. Then, on both sides of the uppermost first plate 11, the upwardly-facing pipe 11a protruding from the plate and the stepped central through-hole 15a are fitted into the pillar portion 16b of the reinforcing member, and the bolts are attached. Flanges 15 are arranged, and at this time, the front end of the pillar 16b and the central through hole 15 are provided.
The brazing material is interposed between the cooling element E and the cooling element E.

【0017】上記のような冷却エレメントEは、両側の
フランジ15上にシール用の非金属ガスケット18を施
した上でカバー体C内に収容され、その中央通孔15a
をオイルの入口Cb又は出口Cdに合せると共に各ボル
ト17をカバー体Cのボルト挿通孔にそれぞれ挿通し
て、カバー体Cの上壁内面に当接され、各ボルト17の
突出部にそれぞれナット21がねじ込まれてカバー体C
に一体に組付けられ、このような結合手段をとることに
より、アルミニウム製のフランジに上からボルトをねじ
込む従来のものに比べ、ねじをつぶすことなく、強く締
付けることができる)、又、カバー体Cの開放端部には
冷却水ガイド用のステンレス鋼板製の仕切板20がビス
止めされてオイルクーラOcをなし、このオイルクーラ
Ocはカバー体周辺のフランジ部Cfが複数箇所におい
てガスケット18介在のもとにボルト17によりエンジ
ンブロックBの壁面に取付けられる。
The cooling element E as described above is accommodated in a cover body C after a non-metallic gasket 18 for sealing is provided on the flanges 15 on both sides, and the central through hole 15a is provided.
With the oil inlet Cb or the outlet Cd, and each bolt 17 is inserted into a bolt insertion hole of the cover body C so as to be brought into contact with the inner surface of the upper wall of the cover body C. Is screwed into the cover body C
By adopting such a connecting means, it is possible to tighten tightly without crushing the screw as compared with the conventional one in which a bolt is screwed into an aluminum flange from above). At the open end of C, a partition plate 20 made of stainless steel plate for cooling water guide is screwed to form an oil cooler Oc, and the oil cooler Oc has a plurality of flange portions Cf around the cover body with gaskets 18 interposed at a plurality of locations. Originally, it is attached to the wall surface of the engine block B by bolts 17.

【0018】そして、使用時にはオイルパンから吸い上
げられたオイルが点線矢印のようにカバー体Cの入口C
bから冷却エレメントEの各単位プレート部材中に流入
する一方、ラジエータ側の冷却水が実線矢印のように反
対側の取入れ口Cbからカバー体C内に導入され、各単
位プレート部材同士の間隙及び周囲を流れてオイルとの
熱交換が行われ、オイルは出口Cdからエンジンの摺動
部や軸受部に送られ、冷却水は仕切板20の流出口20
aからエンジン周囲のウォータジャケットBaに流れて
いく。
At the time of use, the oil sucked up from the oil pan is filled with the inlet C of the cover body C as shown by a dotted arrow.
b flows into each unit plate member of the cooling element E, while cooling water on the radiator side is introduced into the cover body C from the intake port Cb on the opposite side as shown by the solid line arrow, and the gap between the unit plate members and Heat exchanges with the oil flowing around, and the oil is sent from the outlet Cd to a sliding portion or a bearing portion of the engine, and the cooling water is discharged from the outlet 20 of the partition plate 20.
a flows into the water jacket Ba around the engine.

【0019】その際、冷却エレメントEにエンジンの振
動や冷却水の動圧及びオイル脈動圧が作用したにして
も、積層プレート部材の両側部に作られているオイル流
通用の孔部には下側から挿通された補強部材16の柱部
16bにとって補強され、剛性が付与されているので揺
動にくく、フィンプレート13に亀裂を生じることな
く、第1,第2プレート11,12の破損が防がれる。
At this time, even if the vibration of the engine, the dynamic pressure of the cooling water, and the oil pulsation pressure act on the cooling element E, the oil circulation holes formed on both sides of the laminated plate member have lower holes. The column member 16b of the reinforcing member 16 inserted from the side is reinforced and provided with rigidity, so that it is difficult to swing, the fin plate 13 is not cracked, and the first and second plates 11, 12 are prevented from being damaged. Can come off.

【0020】図4は、菱形状のフランジ15をその長手
軸線を冷却エレメントEの長手軸線に一致させて最上段
の第1プレート11上に取付け、カバー体Cのオイルの
入口Cb又は出口Cdがカバー体Cの長手軸線に直交又
は交差状態に設けられた場合に、冷却エレメントAをカ
バー体Cに支障なく組付けられるようにした例を示す。
FIG. 4 shows that the diamond-shaped flange 15 is mounted on the uppermost first plate 11 with its longitudinal axis coinciding with the longitudinal axis of the cooling element E, and the oil inlet Cb or outlet Cd of the cover body C is An example in which the cooling element A can be assembled to the cover C without any trouble when provided in a state orthogonal or intersecting with the longitudinal axis of the cover C is shown.

【0021】図5,図6は他の変更例を示すもので、こ
の場合には図4の例と同じくフランジ15は横に張り出
させて最上段の第1プレート11上に取付けるが、基板
部16aと柱部16b からなる補強部材16は、同じア
ルミニウムからなる補強基板26aと内外径を間隔リン
グ14の内外径にほぼ一致しこれと同数の肉厚な補強半
円状体26bに分けたものとなし、又、これに対応させ
てフィンプレート13の両側部に設けられるオイル流通
用の窓孔13aの外向き半円部は図6のように半円状体
26bの外径にほぼ一致するように大径に形成し、第
1,第2プレート11,12、フィンプレート13及び
間隔リング14の組付け時に、補強基板26aは最下段
の第2プレート12の下面両側部に取付ける一方、半円
状体26bは各フィンプレート13の窓孔13aの大径
半部内に嵌め合せ即ち間隔リング14上に位置するよう
にして、フィンプレート13と共に第1,第2プレート
11,12の間に介在させて所要段数積層し、全体をろ
う付け一体化してある。その使用上の機能は上述の例と
変わりない。
FIGS. 5 and 6 show another modification. In this case, the flange 15 is extended laterally and attached to the uppermost first plate 11 as in the example of FIG. The reinforcing member 16 composed of the portion 16a and the column portion 16b is divided into a reinforcing substrate 26a made of the same aluminum and a thick reinforcing semi-circular body 26b whose inner and outer diameters are almost equal to the inner and outer diameters of the spacing ring 14 and are the same number. In correspondence with this, the outward semicircular portion of the oil circulation window hole 13a provided on both sides of the fin plate 13 corresponds to the outer diameter of the semicircular body 26b as shown in FIG. When the first and second plates 11 and 12, the fin plate 13 and the spacing ring 14 are assembled, the reinforcing substrate 26 a is attached to both sides of the lower surface of the lowermost second plate 12. The semicircular body 26b is The plate 13 is fitted in the large-diameter half of the window hole 13a, that is, is positioned on the spacing ring 14, and is interposed between the first and second plates 11 and 12 together with the fin plate 13 to stack the required number of steps. The whole is brazed and integrated. Its use function is the same as the above-mentioned example.

【0022】なお、上述の例では冷却エレメントEを帽
子状のカバー体Cに取付けてエンジンブロックBの側壁
上に突出させて用いるようにしたものを示したが、平板
状のカバー体に取付けてエンジンブロックEbの側壁内
に全体又は一部を埋込んで用いようにしてもよく、又冷
却エレメントAを専用のウォータケーシング内に配設し
て用いるようにしてもよい。そして、図1のようにフラ
ンジ15が最上段の第1プレート11内に収まる場合に
は、フランジ15を直接プレートにろう付けしてもすむ
ので、フランジ下面のシール板19は必ずしも必要とし
ない。更に上述の例では冷却エレメントA全体をアルミ
ニウムとしたものを示したが、その重量を問題としない
ならば、第1,第2のプレート11,12、フィンプレ
ート13等の構成部品をステンレス鋼製としたものにも
この発明は適用することができる。また、上述の例で
は、第1プレートと第2プレートそれぞれの外周に形成
されたつば部同士を互いに向い合せて単位プレート部材
を形成したものを示したが、第1プレートと第2プレー
トとの外周部を互に加締める構造として、単位プレート
部材を形成するようにしてもよい。
In the above-described example, the cooling element E is mounted on the hat-shaped cover body C so as to protrude from the side wall of the engine block B. However, the cooling element E is mounted on the flat cover body. The whole or a part may be used by being buried in the side wall of the engine block Eb, or the cooling element A may be provided and used in a dedicated water casing. When the flange 15 fits in the uppermost first plate 11 as shown in FIG. 1, the flange 15 can be directly brazed to the plate, so that the seal plate 19 on the lower surface of the flange is not necessarily required. Further, in the above example, the entire cooling element A is made of aluminum. However, if the weight is not a problem, the components such as the first and second plates 11, 12 and the fin plate 13 are made of stainless steel. The present invention can also be applied to those described above. Further, in the above-described example, the unit plate member is formed by facing the flange portions formed on the outer periphery of each of the first plate and the second plate with each other, but the unit plate member is formed by the first plate and the second plate. A unit plate member may be formed as a structure in which the outer peripheral portions are swaged together.

【0023】[0023]

【発明の効果】この発明は車両用オイルクーラの冷却エ
レメントとして、請求項1又は請求項2のように構成さ
れているので、使用時に冷却エレメントにエンジンの振
動や冷却水の動圧並びにポンプアップされるオイルの脈
動圧が作用したにしても、積層プレート部材の両側部に
あるオイルの流通孔の部分は半円状の柱部又は半円状体
によって補強され、剛性を備えて揺動しにくく、これま
でのようにフィンプレートの窓孔縁辺に亀裂を生じるこ
となく第1プレートと第2プレートの破損を招かず、オ
イル洩れを引き起こす恐れはない。そして、請求項3の
ように構成すれば車両の軽量化とコストの低減に役立つ
ことができる。
According to the present invention, as a cooling element for an oil cooler for a vehicle, the cooling element is constructed as described in claim 1 or 2, so that the vibration of the engine, the dynamic pressure of the cooling water and the pump-up are applied to the cooling element during use. Even if the pulsating pressure of the applied oil acts, the portions of the oil flow holes on both sides of the laminated plate member are reinforced by a semicircular column or a semicircular body and swing with rigidity. As a result, the first plate and the second plate are not damaged without causing cracks at the edges of the window holes of the fin plate, and there is no possibility of causing oil leakage. The configuration according to the third aspect can help reduce the weight and cost of the vehicle.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明に係る冷却エレメントの一例の使用状
態を示す一部切断側面図。
FIG. 1 is a partially cut-away side view showing a use state of an example of a cooling element according to the present invention.

【図2】フィンプレートと第1,第2プレート及びフラ
ンジとの関係を示す右半部の平面図。
FIG. 2 is a plan view of a right half showing a relationship between a fin plate, first and second plates, and a flange.

【図3】補強部材の一例の斜視図。FIG. 3 is a perspective view of an example of a reinforcing member.

【図4】フランジを横に張り出させた例の右半部の一部
切断側面図。
FIG. 4 is a partially cut-away side view of a right half of an example in which a flange is laterally extended.

【図5】他の変更例の右半部の一部切断側面図。FIG. 5 is a partially cut-away side view of a right half of another modification.

【図6】図5のもののフィンプレートと第1,第2プレ
ート及びフランジとの関係を示す右半部の平面図。
6 is a plan view of the right half showing the relationship between the fin plate and the first and second plates and the flange of FIG. 5;

【図7】オイルクーラの使用状態を示す斜視図。FIG. 7 is a perspective view showing a use state of the oil cooler.

【図8】(a)は外置き型の状態を示す説明図。(b)
は内蔵型の状態を示す説明図。
FIG. 8A is an explanatory view showing a state of an external type. (B)
FIG. 3 is an explanatory diagram showing a built-in type.

【図9】従来の冷却エレメントの使用状態を示す一部切
断側面図。
FIG. 9 is a partially cut-away side view showing a usage state of a conventional cooling element.

【図10】フィンプレートの一部の斜視図。FIG. 10 is a perspective view of a part of the fin plate.

【符号の説明】[Explanation of symbols]

E 冷却エレメント C カバー体 Oc オイルクーラ 11 第1プレート 11a 上向きパイプ部 12 第2プレート 12a 下向きパイプ部 13 フィンプレート 13a 窓孔 14 間隔リング 15 フランジ 15a 中央通孔 16 補強部材 16a 基板部 16b 柱部 E Cooling element C Cover body Oc Oil cooler 11 First plate 11a Upward pipe section 12 Second plate 12a Downward pipe section 13 Fin plate 13a Window hole 14 Spacing ring 15 Flange 15a Central through hole 16 Reinforcement member 16a Substrate section 16b Column section

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 両側部に上向きパイプ部を有する下向き
皿状の第1プレートと両側部に下向きパイプ部を有する
上向き皿状の第2プレートとの間に、両側部に窓孔を有
する波状多孔のフィンプレートを介させた単位プレート
部材を両側部に間隔リングを介在させて複数段に積層固
定し、最上段の第1プレート上の両側部には中央通孔を
有するブロック状のフランジを固着し、各第1プレート
の上向きパイプ部と第2プレートの下向きパイプ及び各
フィンプレートの窓孔で形成されるオイル流通孔には基
板部と半円状の柱部からなる補強部材の柱部を下側から
それぞれ挿通し、各基板部を最下段の第2プレートの両
側部下面に固着すると共に各柱部の先端部を上記フラン
ジの中央通孔に嵌合固定するようにしたことを特徴とす
る車両用オイルクーラの冷却エレメント。
1. A corrugated porous plate having window holes on both sides between a downward plate-like first plate having upward pipe portions on both sides and a second plate having an upward plate portion on both sides. The unit plate members with the fin plates interposed therebetween are stacked and fixed in a plurality of stages with spacing rings on both sides, and a block-like flange having a central through hole is fixed to both sides on the uppermost first plate. An oil flow hole formed by an upward pipe portion of each first plate, a downward pipe of the second plate, and a window hole of each fin plate is provided with a pillar portion of a reinforcing member composed of a substrate portion and a semicircular pillar portion. A vehicle, wherein each of the board portions is fixed to the lower surface of both side portions of the lowermost second plate, and the front end portion of each of the pillar portions is fitted and fixed to the central through hole of the flange. Oil cooler LA cooling element.
【請求項2】 両側部に上向きパイプ部を有する下向き
皿状の第1プレートと両側部に下向きパイプ部を有する
上向き皿状の第2プレートとの間に、両側部に窓孔を有
する波状多孔のフィンプレートを介在させると共にフィ
ンプレートの両側窓孔部に肉厚な補強用の半円状体を配
設して単位プレート部材となし、この単位プレート部材
を両側部に間隔リングを介在させて複数段に積層固定
し、最上段の第1プレート上の両側部には中央通孔を有
するブロック状のフランジを固着し、各第1プレートの
上向きパイプ部と第2プレートの下向きパイプ部及び各
プレートの半円状体を介在させた窓孔とでフランジの中
央通孔に通じるオイルの流通孔を形成し、最下段の第2
プレートの下面両側部には補強基板を固着したことを特
徴とする車両用オイルクーラの冷却エレメント。
2. A corrugated porous plate having window holes on both sides between a downward plate-like first plate having upward pipe portions on both sides and a upward plate-like second plate having downward pipe portions on both sides. A thick semicircular body for reinforcement is arranged at both side window holes of the fin plate and a unit plate member is formed, and the unit plate member is provided with a spacing ring on both sides. A plurality of stages are stacked and fixed, and a block-like flange having a central through hole is fixed to both sides of the uppermost first plate, and an upward pipe portion of each first plate, a downward pipe portion of the second plate, and each plate And a window through which a semicircular body is interposed to form an oil flow hole communicating with the center through hole of the flange.
A cooling element for an oil cooler for a vehicle, wherein a reinforcing substrate is fixed to both sides of a lower surface of the plate.
【請求項3】 上記第1プレート,第2プレート及びフ
ィンプレートをアルミニウムのクラッド材で形成すると
共に上記間隔リング,フランジ及び補強部材をアルミニ
ウムで形成したことを特徴とする請求孔1又は2記載の
車両用オイルクーラの冷却エレメント。
3. The hole according to claim 1, wherein the first plate, the second plate, and the fin plate are formed of aluminum clad material, and the spacing ring, the flange, and the reinforcing member are formed of aluminum. Cooling element for oil cooler for vehicles.
JP10416798A 1998-03-31 1998-03-31 Cooling element for oil cooler for vehicles Expired - Fee Related JP3896515B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10416798A JP3896515B2 (en) 1998-03-31 1998-03-31 Cooling element for oil cooler for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10416798A JP3896515B2 (en) 1998-03-31 1998-03-31 Cooling element for oil cooler for vehicles

Publications (2)

Publication Number Publication Date
JPH11287114A true JPH11287114A (en) 1999-10-19
JP3896515B2 JP3896515B2 (en) 2007-03-22

Family

ID=14373498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10416798A Expired - Fee Related JP3896515B2 (en) 1998-03-31 1998-03-31 Cooling element for oil cooler for vehicles

Country Status (1)

Country Link
JP (1) JP3896515B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11351766A (en) * 1998-06-15 1999-12-24 Ishikawajima Harima Heavy Ind Co Ltd Header structure for plate fin type heat exchanger and method for mounting header
JP2007003027A (en) * 2005-06-21 2007-01-11 Calsonic Kansei Corp Oil cooler
JP2014095492A (en) * 2012-11-08 2014-05-22 Mahle Filter Systems Japan Corp Multiple-plate type oil cooler
CN109751101A (en) * 2018-12-27 2019-05-14 隆鑫通用动力股份有限公司 Engine oil cooler protective cover and engine
DE112008001056B4 (en) 2007-05-10 2022-03-31 Alfa Laval Corporate Ab plate heat exchanger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11351766A (en) * 1998-06-15 1999-12-24 Ishikawajima Harima Heavy Ind Co Ltd Header structure for plate fin type heat exchanger and method for mounting header
JP2007003027A (en) * 2005-06-21 2007-01-11 Calsonic Kansei Corp Oil cooler
JP4722577B2 (en) * 2005-06-21 2011-07-13 カルソニックカンセイ株式会社 Oil cooler
DE112008001056B4 (en) 2007-05-10 2022-03-31 Alfa Laval Corporate Ab plate heat exchanger
JP2014095492A (en) * 2012-11-08 2014-05-22 Mahle Filter Systems Japan Corp Multiple-plate type oil cooler
CN109751101A (en) * 2018-12-27 2019-05-14 隆鑫通用动力股份有限公司 Engine oil cooler protective cover and engine

Also Published As

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