JPH0531426Y2 - - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案はエンジンオイルや作動用オイルを冷却
するオイルクーラのエレメントに係、特に該エレ
メントが偏平に形成されたものに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an oil cooler element for cooling engine oil or working oil, and particularly relates to an element in which the element is formed flat.

〔従来技術〕[Prior art]

従来のオイルクーラのエレメントは、上下一対
の皿状に形成された金属板を互いに逆向きに重ね
合わせ、その周縁部を液密にろう付け固定すると
共に、その長手方向両端部に連通孔を形成し、内
部にインナーフインを介装していた。そしてこの
ようなエレメントをスペーサを介し多段にその厚
み方向に積層し、一方の連通孔からオイルを流入
し他方からそれを流出させると共に、各エレメン
トの外周に冷却水を流通させて両者の間に熱交換
を行わせていた。 Conventional oil cooler elements consist of a pair of upper and lower dish-shaped metal plates stacked in opposite directions, their peripheral edges liquid-tightly brazed, and communicating holes formed at both longitudinal ends. However, an inner fin was inserted inside. Then, such elements are stacked in multiple stages in the thickness direction with spacers interposed between them, allowing oil to flow in through one communication hole and flow out from the other, and cooling water to flow around the outer periphery of each element to create a gap between the two. Heat exchange was performed.

〔解決しようとする問題点〕[Problem to be solved]

このようなエレメントは、その部品点数が多く
製作に多くの工数がかかりコスト高にならざるを
得なかつた。 Such an element has a large number of parts, requires many man-hours to manufacture, and is inevitably expensive.

〔問題点を解決するための手段〕[Means for solving problems]

そこで本考案は以上の問題点を取り除くため、
次の構成をとる。 Therefore, this invention aims to eliminate the above problems.
It has the following configuration.

即ち、少なくとも一方が皿状に形成された一対
の金属板を重ね合わせて周縁を互いに液密に接合
し、両端部に流入孔１と流出孔２とを形成する。
そして流入孔１、流出孔２間の内部に偏平なオイ
ル流路を形成し、外周に冷却水が流通するように
構成する。ここにおいて本考案の特徴とするとこ
ろは、流入孔１、流出孔２間で夫々の前記金属板
に互いに整合する複数の長孔３を前記流路の流通
方向に交差し、その孔縁部を内面側にバーリング
加工して配設する。そして夫々の金属板に互いに
整合する長孔３，３の孔縁同志を互いに液密に接
合して両金属板間に複数の貫通流路４を形成し、
該貫通流路４を冷却水が流通し得るように構成し
たものである。 That is, a pair of metal plates, at least one of which is formed in a dish shape, are stacked one on top of the other, their peripheral edges are liquid-tightly joined to each other, and an inflow hole 1 and an outflow hole 2 are formed at both ends.
A flat oil flow path is formed inside between the inflow hole 1 and the outflow hole 2, and the cooling water is configured to flow around the outer periphery. Here, the feature of the present invention is that a plurality of long holes 3 that are aligned with each other are formed in each of the metal plates between the inlet hole 1 and the outlet hole 2, so that the hole edges intersect with each other in the flow direction of the flow path. The inner surface is burred and installed. Then, the edges of the long holes 3, 3 that are aligned with each other in each metal plate are liquid-tightly joined to each other to form a plurality of through passages 4 between the two metal plates,
The through passage 4 is configured so that cooling water can flow therethrough.

〔実施例〕 次に図面に基づいて本考案の実施例につき説明
する。[Example] Next, an example of the present invention will be described based on the drawings.

第１図は本考案のエレメントの分解説明図であ
り、第２図は第３図の−矢視断面略図であ
る。そして第３図は本エレメントを有するオイル
の要部縦断面図である。このエレメントは第１図
に示す如く上下一対の皿状に形成された金属板か
らなり、その両端部に流入孔１、流出孔２が夫々
穿設されると共に、両孔間に複数の長孔３が夫々
幅方向に互いに千鳥状に配設される。そして該長
孔３の孔縁部は内面側にバーリング形成されてい
る。このようにしてなる一対の金属板を互いに逆
向きに重ね合わせ両周縁部同志及び長孔３，３間
を互いに嵌着し、該嵌着部を液密にろう付け固定
してエレメントを構成する。このようにしてなる
エレメントは第３図に示す如く流入孔１、流出孔
２の孔縁部に環状のスペーサ６を介して多段に積
層され、各接触部間が液密にろう付け固定される
と共に、図において最上段のエレメントには、そ
の流入孔１、流出孔２に夫々ボス部５がろう付け
固定される。又、最下段のエレメントの下面側金
属板には流入孔及び流出孔を穿設しないものが用
いられる。このようにしてなる熱交換器には流入
孔１側のボス部５よりオイルが流入し、各エレメ
ント内を第１図の如く蛇行状にそれが流通し、流
出孔２に達し、そこからボス部５を介して流出す
る。そしてオイルクーラを内装するケーシング７
内にその長手方向に冷却水８が流通する。すると
この冷却水８は各エレメント間を流通すると共
に、各エレメントに形成された貫通流路４を介し
攪拌され厚み方向に互いに混じり合いつつ、その
長手方向に流通する。そしてこの冷却水８とオイ
ル９との間に熱交換が行われるものである。 FIG. 1 is an exploded explanatory view of an element of the present invention, and FIG. 2 is a schematic cross-sectional view taken along the - arrow in FIG. 3. FIG. 3 is a longitudinal cross-sectional view of the main part of the oil having this element. As shown in Fig. 1, this element consists of a pair of upper and lower dish-shaped metal plates, each having an inflow hole 1 and an outflow hole 2 at both ends, and a plurality of elongated holes between the two holes. 3 are arranged in a staggered manner in the width direction. The edge of the elongated hole 3 is burred on the inner surface. A pair of metal plates formed in this manner are stacked in opposite directions, and the two peripheral edges and the slots 3 and 3 are fitted into each other, and the fitting parts are brazed and fixed in a fluid-tight manner to form an element. . The elements constructed in this way are stacked in multiple stages on the edges of the inflow hole 1 and the outflow hole 2 with annular spacers 6 interposed therebetween, as shown in FIG. At the same time, boss portions 5 are brazed and fixed to the inflow hole 1 and the outflow hole 2 of the uppermost element in the figure, respectively. In addition, a metal plate on the lower surface side of the element at the lowest stage does not have an inflow hole or an outflow hole. Oil flows into the heat exchanger constructed in this manner from the boss portion 5 on the inlet hole 1 side, flows through each element in a meandering manner as shown in Figure 1, reaches the outlet hole 2, and from there flows through the boss portion 5 on the side of the inlet hole 1. It flows out through part 5. And casing 7 that houses the oil cooler
Cooling water 8 flows therein in the longitudinal direction. Then, this cooling water 8 flows between each element, is stirred through the through passage 4 formed in each element, and flows in the longitudinal direction while being mixed with each other in the thickness direction. Heat exchange is performed between the cooling water 8 and the oil 9.

〔考案の効果〕[Effect of idea]

本考案のエレメントは以上のような構成からな
り、次の効果を有する。 The element of the present invention has the above configuration and has the following effects.

本エレメントはその両端部に形成された流入孔
１と流出孔２との中間に内部流路に交差して複数
の長孔３が設けられ、該長孔３により貫通流路４
が形成されたから、該貫通流路４自体でオイルを
攪拌し伝熱性を向上し得る。、又、貫通流路４に
冷却水が流通し得るように形成したから、冷却水
がエレメントの厚み方向に互いに入り混じること
になり、貫通流路４を介して伝熱性が向上し得
る。又、貫通流路４自体が冷却水の攪拌効果を生
じさせ、この点からも伝熱性が高められる。それ
と共に部品点数の少ないエレメントを形成でき
る。 This element is provided with a plurality of elongated holes 3 intersecting the internal flow path between an inflow hole 1 and an outflow hole 2 formed at both ends thereof, and the elongated holes 3 form a through flow path 4.
Since this is formed, the oil can be agitated in the through flow path 4 itself and heat transfer properties can be improved. Furthermore, since the through-flow passages 4 are formed so that cooling water can flow therethrough, the cooling water mixes with each other in the thickness direction of the element, and heat transfer properties can be improved through the through-flow passages 4. Further, the through flow path 4 itself produces a stirring effect of the cooling water, and from this point as well, the heat transfer performance is improved. At the same time, it is possible to form an element with a small number of parts.

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

第１図は本考案のオイルクーラのエレメントの
分解説明図、第２図は第３図の−矢視断面略
図、第３図は本考案のエレメントを用いたオイル
クーラの要部縦断面図。 １……流入孔、２……流出孔、３……長孔、４
……貫通流路、５……ボス部、６……スペーサ、
７……ケーシング、８……冷却水、９……オイ
ル。 FIG. 1 is an exploded explanatory view of an element of an oil cooler of the present invention, FIG. 2 is a schematic cross-sectional view taken along the - arrow in FIG. 3, and FIG. 3 is a longitudinal cross-sectional view of a main part of an oil cooler using the element of the present invention. 1... Inflow hole, 2... Outflow hole, 3... Long hole, 4
...Through passage, 5...Boss part, 6...Spacer,
7...Casing, 8...Cooling water, 9...Oil.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 少なくとも一方が皿状に形成された一対の金属
板を重ね合わせて周縁を互いに液密に接合し、両
端部に流入孔１と流出孔２を形成し、両孔１，２
間の内部に偏平なオイル流路を形成し外周に冷却
水が流通するように構成したオイルクーラのエレ
メントにおいて、前記両孔１，２間で夫々の前記
金属板に互いに整合する複数の長孔３を前記流路
の流通方向に交差し、その孔縁部を内面側にバー
リング加工して配設し、整合する両孔３の孔縁同
志を互いに液密に接合して前記両金属板間に複数
の貫通流路４を形成し、該貫通流路４を前記冷却
水が流通し得るように構成したことを特徴とする
オイルクーラのエレメント。 A pair of metal plates, at least one of which is formed in a dish shape, are overlapped and their peripheral edges are liquid-tightly joined to each other, an inflow hole 1 and an outflow hole 2 are formed at both ends, and both holes 1, 2 are formed.
In an oil cooler element configured such that a flat oil flow path is formed inside the space and cooling water flows around the outer periphery, a plurality of elongated holes aligned with each other in each of the metal plates between the holes 1 and 2; 3 are arranged to intersect with the flow direction of the flow path, and the hole edges thereof are burred on the inner surface side, and the hole edges of the matching holes 3 are liquid-tightly joined to each other to form a gap between the two metal plates. An element for an oil cooler, characterized in that a plurality of through passages 4 are formed in the through passages 4, and the through passages 4 are configured so that the cooling water can flow therethrough.