JPS60105974U

JPS60105974U - Needle fins for heat exchangers

Info

Publication number: JPS60105974U
Application number: JP19490083U
Authority: JP
Inventors: 美昭青木; 吉典渡辺
Original assignee: 三菱重工業株式会社
Priority date: 1983-12-20
Filing date: 1983-12-20
Publication date: 1985-07-19
Also published as: JPH0356771Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はコルゲート型熱交換器の外観を表す正面図、第
２図はそのコルゲートフィンの外観を表す斜視図、第３
図は第１図中の■−■矢視断面図、第４図は本考案によ
る熱交換器用針状フィンの一実施例の断面構造を表す原
理図であり、図中の符号で１は偏平伝熱管、４はコルゲートフィン、６は針状フィ
ン、７は針状フィン素材、８は針状フィン部、９は塗料
である。補正　昭５９．１．２１実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲伝熱管に針状フィンを接合した熱交換器において、帯状
をなす金属薄板材を打ち抜いて形成したｕ伏矩形断面５
いは円形化が不充分な断　の針状フィン素材に表面張力
により前記針状フィンの断面を円形化させる塗料を塗布
したことを特徴とする熱交換器用針状フィン。Figure 1 is a front view showing the appearance of a corrugated heat exchanger, Figure 2 is a perspective view showing the appearance of its corrugated fins, and Figure 3 is a front view showing the appearance of the corrugated heat exchanger.
The figure is a sectional view taken along the arrow ■-■ in FIG. A heat exchanger tube, 4 is a corrugated fin, 6 is a needle fin, 7 is a needle fin material, 8 is a needle fin portion, and 9 is a paint. Amendment January 21, 1980 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims U-shaped rectangular cross section 5 formed by punching out a strip-shaped thin metal plate in a heat exchanger in which needle-like fins are joined to heat exchanger tubes.
Alternatively, a needle fin for a heat exchanger is characterized in that a paint that makes the cross section of the needle fin circular due to surface tension is applied to a needle fin material whose cut is insufficiently circularized.

Claims

[Scope of utility model registration request]

In a heat exchanger in which needle-like fins are joined to heat transfer tubes, a paint is applied to the needle-like fin material with a rectangular cross section, which is formed by punching out a strip-shaped metal sheet material, to make the cross section of the needle-like fin circular due to surface tension. A needle-like fin for a heat exchanger, which is characterized by: