| 发明名称 |
Inner surface grooved heat transfer tube |
| 摘要 |
In an inner surface-grooved heat transfer tube, a plurality of fins is formed on the inner surface thereof along a line forming a first predetermined angle with respect to the longitudinal axis of the tube, a plurality of notches is defined on the fins along a line forming a second predetermined angle with respect to the longitudinal axis, and the depth Hf' of the notches is specified to be 20% or more and below 40% (0.2</=Hf'/Hf<0.4) with respect to the height Hf of the fins, to provide an inner surface-grooved heat transfer tube which can suppress pressure loss of a refrigerant, and by which improvements in performance of condensation and evaporation are intended. In addition no increase of power consumption is required for the pump.
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| 申请公布号 |
US5992513(A) |
申请公布日期 |
1999.11.30 |
| 申请号 |
US19980065580 |
申请日期 |
1998.04.24 |
| 申请人 |
HITACHI CABLE, LTD. |
发明人 |
SUZUKI, YOSHIO;INUI, KENICHI;TOBE, MASAKAZU;OTANI, TADAO |
| 分类号 |
F28F1/40;(IPC1-7):F28F1/40 |
主分类号 |
F28F1/40 |
| 代理机构 |
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