JPS57175896A - Heat transmission pipe - Google Patents

Heat transmission pipe

Info

Publication number
JPS57175896A
JPS57175896A JP6114281A JP6114281A JPS57175896A JP S57175896 A JPS57175896 A JP S57175896A JP 6114281 A JP6114281 A JP 6114281A JP 6114281 A JP6114281 A JP 6114281A JP S57175896 A JPS57175896 A JP S57175896A
Authority
JP
Japan
Prior art keywords
heat transmission
another
transmission pipe
heat
grooves
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.)
Pending
Application number
JP6114281A
Other languages
Japanese (ja)
Inventor
Tamio Innami
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP6114281A priority Critical patent/JPS57175896A/en
Publication of JPS57175896A publication Critical patent/JPS57175896A/en
Pending 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

Abstract

PURPOSE:To promote heat transmission efficiency of heat transmission pipes through which fluid flows in both gaseous and liquid phases for heat exchangers for air conditioners or the like by a method wherein adjoining spiral grooves provided on the inside wall of a heat transmission pipe are made to have difference depths or widths from one another. CONSTITUTION:Many spiral grooves 2 of optional angles are provided on the inside wall of the heat transmission pipe 1, and adjoining grooves are formed into different groove depths or widths from one another. Such features can cause fluid flowing along the grooves to interfere one another enlarging flow turbulences so that heat transfer rate is increased to promote heat exchange.
JP6114281A 1981-04-24 1981-04-24 Heat transmission pipe Pending JPS57175896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6114281A JPS57175896A (en) 1981-04-24 1981-04-24 Heat transmission pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6114281A JPS57175896A (en) 1981-04-24 1981-04-24 Heat transmission pipe

Publications (1)

Publication Number Publication Date
JPS57175896A true JPS57175896A (en) 1982-10-28

Family

ID=13162547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6114281A Pending JPS57175896A (en) 1981-04-24 1981-04-24 Heat transmission pipe

Country Status (1)

Country Link
JP (1) JPS57175896A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0753709A2 (en) * 1995-07-12 1997-01-15 Sanyo Electric Co., Ltd. Heat exchanger for refrigeration circuit
EP0798529A1 (en) * 1996-03-28 1997-10-01 KM Europa Metal Aktiengesellschaft Heat transfer tube
US5692560A (en) * 1993-06-07 1997-12-02 Trefimetaux Grooved tubes for heat exchangers in air conditioning equipment and refrigerating equipment, and corresponding exchangers
CN104197753A (en) * 2014-09-18 2014-12-10 苏州新太铜高效管有限公司 Heat exchanging tube for condenser

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692560A (en) * 1993-06-07 1997-12-02 Trefimetaux Grooved tubes for heat exchangers in air conditioning equipment and refrigerating equipment, and corresponding exchangers
EP0753709A2 (en) * 1995-07-12 1997-01-15 Sanyo Electric Co., Ltd. Heat exchanger for refrigeration circuit
EP0753709A3 (en) * 1995-07-12 1997-09-03 Sanyo Electric Co Heat exchanger for refrigeration circuit
US5862857A (en) * 1995-07-12 1999-01-26 Sanyo Electric Co., Ltd Heat exchanger for refrigerating cycle
EP0798529A1 (en) * 1996-03-28 1997-10-01 KM Europa Metal Aktiengesellschaft Heat transfer tube
CN104197753A (en) * 2014-09-18 2014-12-10 苏州新太铜高效管有限公司 Heat exchanging tube for condenser

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