JPH01170880U - - Google Patents

Info

Publication number
JPH01170880U
JPH01170880U JP6848588U JP6848588U JPH01170880U JP H01170880 U JPH01170880 U JP H01170880U JP 6848588 U JP6848588 U JP 6848588U JP 6848588 U JP6848588 U JP 6848588U JP H01170880 U JPH01170880 U JP H01170880U
Authority
JP
Japan
Prior art keywords
heat exchanger
groove
exchanger tube
utility
spiral
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
JP6848588U
Other languages
English (en)
Other versions
JPH0547976Y2 (ja
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 filed Critical
Priority to JP1988068485U priority Critical patent/JPH0547976Y2/ja
Publication of JPH01170880U publication Critical patent/JPH01170880U/ja
Application granted granted Critical
Publication of JPH0547976Y2 publication Critical patent/JPH0547976Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

【図面の簡単な説明】
第1図は本考案の実施例1にかかる伝熱管の縦
断面図、第2図は第1図図示の伝熱管の部分拡大
図、第3図および第4図は本考案の実施例2およ
び3にかかる伝熱管の第2図相当図、第5図は従
来の伝熱管の第2図相当図、第6図は突条2の高
さhに対する小突条4の高さhの比h/h
と冷媒側熱伝達率αとの関係を示す特性図、第
7図は前記h/hと伝熱管単位重量当たりの
熱貫流率Kとの関係を示す特性図である。 1……管体、2……突条、3,3a,3b……
螺旋溝、4……小突条。

Claims (1)

  1. 【実用新案登録請求の範囲】 1 管体1の内周面に、複数の螺旋状の突条2,
    2…と隣合う突条2,2間に位置する断面略台形
    状の螺旋溝3,3…とを形成するとともに、該螺
    旋溝3底部に、前記突条2より高さの低い小突条
    4を形成したことを特徴とする伝熱管。 2 前記螺旋溝3,3…が幅広の底部を有するも
    の3aと幅狹の底部を有するもの3bとからなつ
    ており、幅広の底部を有する螺旋溝3a底部には
    、小突条4が形成されている前記実用新案登録請
    求の範囲第1項記載の伝熱管。 3 前記小突条4が複数個形成されている前記実
    用新案登録請求の範囲第1項および第2項記載の
    伝熱管。
JP1988068485U 1988-05-23 1988-05-23 Expired - Lifetime JPH0547976Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988068485U JPH0547976Y2 (ja) 1988-05-23 1988-05-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988068485U JPH0547976Y2 (ja) 1988-05-23 1988-05-23

Publications (2)

Publication Number Publication Date
JPH01170880U true JPH01170880U (ja) 1989-12-04
JPH0547976Y2 JPH0547976Y2 (ja) 1993-12-17

Family

ID=31293800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988068485U Expired - Lifetime JPH0547976Y2 (ja) 1988-05-23 1988-05-23

Country Status (1)

Country Link
JP (1) JPH0547976Y2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007120787A (ja) * 2005-10-25 2007-05-17 Hitachi Cable Ltd 内面溝付伝熱管
WO2010016516A1 (ja) * 2008-08-08 2010-02-11 三菱電機株式会社 熱交換器用の伝熱管、熱交換器、冷凍サイクル装置及び空気調和装置
CN102679790A (zh) * 2012-06-05 2012-09-19 金龙精密铜管集团股份有限公司 强化冷凝传热管

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5766391U (ja) * 1980-10-08 1982-04-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5766391U (ja) * 1980-10-08 1982-04-20

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007120787A (ja) * 2005-10-25 2007-05-17 Hitachi Cable Ltd 内面溝付伝熱管
JP4665713B2 (ja) * 2005-10-25 2011-04-06 日立電線株式会社 内面溝付伝熱管
US8091615B2 (en) 2005-10-25 2012-01-10 Hitachi Cable, Ltd. Heat transfer pipe with grooved inner surface
WO2010016516A1 (ja) * 2008-08-08 2010-02-11 三菱電機株式会社 熱交換器用の伝熱管、熱交換器、冷凍サイクル装置及び空気調和装置
CN102679790A (zh) * 2012-06-05 2012-09-19 金龙精密铜管集团股份有限公司 强化冷凝传热管

Also Published As

Publication number Publication date
JPH0547976Y2 (ja) 1993-12-17

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