JPS5726394A - Heat conduction pipe with grooves in internal surface - Google Patents

Heat conduction pipe with grooves in internal surface

Info

Publication number
JPS5726394A
JPS5726394A JP10010080A JP10010080A JPS5726394A JP S5726394 A JPS5726394 A JP S5726394A JP 10010080 A JP10010080 A JP 10010080A JP 10010080 A JP10010080 A JP 10010080A JP S5726394 A JPS5726394 A JP S5726394A
Authority
JP
Japan
Prior art keywords
heat conduction
pipe
grooves
conduction pipe
internal surface
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
JP10010080A
Other languages
Japanese (ja)
Other versions
JPS6239359B2 (en
Inventor
Katsuaki Bandai
Aritaka Tatsumi
Kiyoshi Oizumi
Yoshihiro Shinohara
Makoto Hori
Koichi Matsukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 by Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP10010080A priority Critical patent/JPS5726394A/en
Publication of JPS5726394A publication Critical patent/JPS5726394A/en
Publication of JPS6239359B2 publication Critical patent/JPS6239359B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metal Extraction Processes (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To provide a heat conduction pipe, for use with air conditioner which has an improved heat conduction rate and balance, by a method wherein 2 fine grooves having given tilting angles to an pipe axis in the same direction, cross each other and are formed in an inner wall of heat conduction pipe conducting a latent heat followed by a phase change of a liquid. CONSTITUTION:Fine recesses 6 and 7, having spiral angles of theta3 and theta4 to a pipe axis, cross each other and are formed in an inner wall of a pipe 1. The spiral angles are set within a range of 0 deg.-45 deg. in the same direction. This permits the improvement of the balance of a condensing property and an evaporating property, the use of the pipe with a heat pump, and the improvement of a heat conduction rate.
JP10010080A 1980-07-22 1980-07-22 Heat conduction pipe with grooves in internal surface Granted JPS5726394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10010080A JPS5726394A (en) 1980-07-22 1980-07-22 Heat conduction pipe with grooves in internal surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10010080A JPS5726394A (en) 1980-07-22 1980-07-22 Heat conduction pipe with grooves in internal surface

Publications (2)

Publication Number Publication Date
JPS5726394A true JPS5726394A (en) 1982-02-12
JPS6239359B2 JPS6239359B2 (en) 1987-08-22

Family

ID=14264972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10010080A Granted JPS5726394A (en) 1980-07-22 1980-07-22 Heat conduction pipe with grooves in internal surface

Country Status (1)

Country Link
JP (1) JPS5726394A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658892A (en) * 1983-12-28 1987-04-21 Hitachi Cable, Ltd. Heat-transfer tubes with grooved inner surface
FR2623893A1 (en) * 1987-11-30 1989-06-02 American Standard Inc HEAT EXCHANGER HAVING TUBES HAVING INNER FINS
US5975196A (en) * 1994-08-08 1999-11-02 Carrier Corporation Heat transfer tube
US5992512A (en) * 1996-03-21 1999-11-30 The Furukawa Electric Co., Ltd. Heat exchanger tube and method for manufacturing the same
EP1312885A3 (en) * 2001-11-16 2004-08-18 Wieland-Werke AG Heat exchange tube structured on both sides and process for making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63227165A (en) * 1987-03-17 1988-09-21 Toshiba Corp Terminal equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521914A (en) * 1975-06-23 1977-01-08 Asahi Chemical Ind Sound insulation panel
JPS5325881A (en) * 1976-08-21 1978-03-10 Motomu Miyamoto Contact device for switch
JPS54116765A (en) * 1978-03-02 1979-09-11 Daikin Ind Ltd Heat exchange tube
JPS555176A (en) * 1978-06-29 1980-01-16 Sumitomo Light Metal Ind Ltd Production of heat transer pipe
JPS56117097A (en) * 1980-02-20 1981-09-14 Hitachi Ltd Heat transferring pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521914A (en) * 1975-06-23 1977-01-08 Asahi Chemical Ind Sound insulation panel
JPS5325881A (en) * 1976-08-21 1978-03-10 Motomu Miyamoto Contact device for switch
JPS54116765A (en) * 1978-03-02 1979-09-11 Daikin Ind Ltd Heat exchange tube
JPS555176A (en) * 1978-06-29 1980-01-16 Sumitomo Light Metal Ind Ltd Production of heat transer pipe
JPS56117097A (en) * 1980-02-20 1981-09-14 Hitachi Ltd Heat transferring pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658892A (en) * 1983-12-28 1987-04-21 Hitachi Cable, Ltd. Heat-transfer tubes with grooved inner surface
FR2623893A1 (en) * 1987-11-30 1989-06-02 American Standard Inc HEAT EXCHANGER HAVING TUBES HAVING INNER FINS
US5975196A (en) * 1994-08-08 1999-11-02 Carrier Corporation Heat transfer tube
US5992512A (en) * 1996-03-21 1999-11-30 The Furukawa Electric Co., Ltd. Heat exchanger tube and method for manufacturing the same
EP1312885A3 (en) * 2001-11-16 2004-08-18 Wieland-Werke AG Heat exchange tube structured on both sides and process for making same

Also Published As

Publication number Publication date
JPS6239359B2 (en) 1987-08-22

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