Multi-channeled loop heat transfer device with high efficiency fins

A multi-channeled loop heat transfer device designed to transport heat through phase change of working fluid within one loop, comprising:

• an evaporating section and a condensing section, each of said evaporating and condensing sections consisting of a plurality of fluid supply flattened tubes, with a plurality of oblique louver fins externally attached to said flattened tubes and individually having a plurality of strips cut at an angle of attack relative to a main gas flow, each of said flattened tubes having a multi-channeled fluid path therein for accomplishing both capillary pumping effect and vapor feeding effect with a wick structure being set within the multi-channeled fluid path, said flattened tubes being parallely arranged between upper and lower fluid supply headers while being inserted into and held by the headers at opposite ends thereof;
• and
• a vapor pipe and a liquid pipe individually extending between said evaporating and condensing sections, thus forming a closed circuit for heat transfer working fluid,
• whereby said device forms active vortices and breaks boundary layer growth on the fin outside of the flattened tubes, thus having an improved heat transfer rate.