发明名称 |
HEAT TRANSFER TUBE WITH CRACK-LIKE CAVITIES TO ENHANCE PERFORMANCE THEREOF |
摘要 |
A heat transfer tube (20) having an inner surface (24) provided with a dense pattern of polyhedrons (100) having crack-like cavities (80) on at least two surfaces of a single polyhedron (100), forming three-dimensional crack-like cavities (80) that enhance flow evaporator heat transfer. The tube (20) is made by (a) forming in an inner surface for the tube a plurality of generally parallel first grooves (70), (b) forming in the inner surface (24) and over the first grooves (70) a plurality of generally parallel second fins (64) extending at a first angle of between 0 and about 25 degrees relative to a longitudinal axis (26) for the tube (20) to thereby devolve the second fins (64) into the pattern of cavities, and (c) forming in the second fins (64) a pattern of generally parallel crosshatches extending cross-wise thereto.
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申请公布号 |
WO0034730(A1) |
申请公布日期 |
2000.06.15 |
申请号 |
WO1999US28461 |
申请日期 |
1999.12.02 |
申请人 |
OUTOKUMPU COPPER FRANKLIN, INC. |
发明人 |
BENNETT, DONALD, L.;TANG, LIANGYOU |
分类号 |
F28F1/40;(IPC1-7):F28F13/18;F28F1/14;F28F1/20 |
主分类号 |
F28F1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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