| 摘要 |
<p>The heat exchanger is used in the heat generation and refrigeration engineering. It increases the efficiency of heat rendering and the irradiation surfaces. It consists of a tube (1) and a spirally wound rib (2) around it having a lateral step (3) fixed to tube (1). Rib (2) is a dovetail-like folded strip the one end of which is in the form of a closely pressed articulation and is bent in such a way as to form the step (3). 1 claim, 2 figures</p> |
