JPH0356077U

JPH0356077U -

Info

Publication number: JPH0356077U
Application number: JP11404089U
Authority: JP
Priority date: 1989-09-28
Filing date: 1989-09-28
Publication date: 1991-05-29

Description

[Brief explanation of the drawing]

第１図は本考案に係る熱交換器の一実施例を示
す分解斜視図である。第２図は冷却水がコア部を
流通する経路を示す説明図である。第３図は第１
図のチユーブを拡大して示す斜視図である。第４
図は第３図のチユーブを示す縦断面図である。第
５図はチユーブとフインとの接着状態を示す縦断
面図である。第６図は本考案の熱交換器の他の実
施例のチユーブを示す斜視図である。第７図は従
来の熱交換器を示す分解斜視図である。第８図は
第７図のコア部を冷却水が流通する経路を示す説
明図である。第９図はチユーブの内面に撹拌用突
起が形成された熱交換器を示す斜視図である。第
１０図は第９図のチユーブを示す斜視図である。
第１１図は第１０図の−線に沿う横断面
図である。主要な部分の符号の説明、５３，８３……チユ
ーブ、５５……フイン、６１……上側タンク、６
３……下側タンク、７１，８１……撹拌用突起、
７３……層流域。 FIG. 1 is an exploded perspective view showing an embodiment of the heat exchanger according to the present invention. FIG. 2 is an explanatory diagram showing a path through which cooling water flows through the core section. Figure 3 is the first
It is a perspective view which expands and shows the tube of the figure. Fourth
The figure is a longitudinal sectional view showing the tube of FIG. 3. FIG. 5 is a longitudinal sectional view showing the state of adhesion between the tube and the fin. FIG. 6 is a perspective view showing a tube of another embodiment of the heat exchanger of the present invention. FIG. 7 is an exploded perspective view showing a conventional heat exchanger. FIG. 8 is an explanatory diagram showing a path through which cooling water flows through the core portion of FIG. 7. FIG. 9 is a perspective view showing a heat exchanger in which stirring protrusions are formed on the inner surface of the tube. FIG. 10 is a perspective view of the tube of FIG. 9.
FIG. 11 is a cross-sectional view taken along the - line in FIG. 10. Explanation of symbols of main parts, 53, 83...tube, 55...fin, 61...upper tank, 6
3... Lower tank, 71, 81... Stirring protrusion,
73... Laminar region.

Claims

[Claims for Utility Model Registration] (1) A heat exchanger in which a number of tubes through which cooling water flows are arranged between tanks on both sides so as to communicate with the tank, and fins are arranged between these tubes. In this step, a stirring protrusion for stirring the cooling water is formed in a laminar region of the tube where the cooling water in the tube becomes a laminar flow, and the stirring protrusion is protruded inwardly from the inner surface of the tube. A heat exchanger characterized in that it is formed by (2) The heat exchanger according to claim 1, wherein the stirring protrusions are formed more densely in the cooling water flow direction of the tube.