JPH01170876U

JPH01170876U -

Info

Publication number: JPH01170876U
Application number: JP6490888U
Authority: JP
Priority date: 1988-05-17
Filing date: 1988-05-17
Publication date: 1989-12-04

Description

[Brief explanation of the drawing]

第１図はこの考案による２重管式熱交換器の一
部切欠正面図、第２図は第１図の―線にそう
断面図、第３図はフイン材のみを示す一部切欠き
斜視図、第４図はこの考案による２重管式熱交換
器をそなえたラジエータの概略正面図、第５図は
オイル流路内の分割フイン垂直壁部の具体的配列
を示す正面図、第６図は第５図の分割フイン垂直
壁部の内管円周方向に沿う断面図、第７図は同分
割フイン垂直壁部の配列のいま１つの例を示す正
面図、第８図は第７図の分割フイン垂直壁部の内
管円周方向に沿う断面図である。第９図は従来の
２重管式熱交換器を示す一部切欠き部分斜視図で
ある。１……内管、２……外管、３……フイン材、３
ａ……内壁部、３ｂ……外壁部、３ｃ……垂直壁
部、４……スリツト、５……オイル流路、１０…
…２重管式熱交換器、３０……ラジエータ。 Figure 1 is a partially cutaway front view of the double tube heat exchanger according to this invention, Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a partially cutaway perspective view showing only the fin material. 4 is a schematic front view of a radiator equipped with a double-tube heat exchanger according to this invention, FIG. The figure is a cross-sectional view along the circumferential direction of the inner tube of the vertical wall portion of the divided fins shown in FIG. 5, FIG. 7 is a front view showing another example of the arrangement of the vertical wall portion of the divided fins, and FIG. FIG. 3 is a cross-sectional view of the vertical wall portion of the split fin in the circumferential direction of the inner tube; FIG. 9 is a partially cutaway partial perspective view showing a conventional double tube heat exchanger. 1...Inner tube, 2...Outer tube, 3...Fin material, 3
a...Inner wall part, 3b...Outer wall part, 3c...Vertical wall part, 4...Slit, 5...Oil flow path, 10...
...double tube heat exchanger, 30...radiator.

Claims

[Claims for Utility Model Registration] (1) Comprising an inner tube 1, an outer tube 2, and a fin material 3 wound spirally around the inner tube 1 and interposed between both tubes 1 and 2. , the fin material 3 has an inner wall portion 3a that is in contact with the outer surface of the inner tube 1, and a vertical wall portion 3 that is continuous with the inner wall portion 3a and whose tip portion is in contact with the inner surface of the outer tube 2.
A double-tube heat exchanger comprising a vertical wall 3c and slits 4 extending across the vertical wall 3c at required intervals. (2) It includes an inner tube 1, an outer tube 2, and a fin material 3 that is spirally wound around the inner tube 1 and interposed between the two tubes 1 and 2. It is composed of an inner wall part 3a in contact with the outer surface of the outer tube 1, an outer wall part 3b in contact with the inner surface of the outer tube 2, and a vertical wall part 3c connecting them. A double tube heat exchanger in which slits 4 are provided at required intervals in a portion 3b and a vertical wall portion 3c to cross them.