Heat pipe type heat transfer device

Abstract

An object of the present invention is to provide a heat transfer device succeeded in satisfying both the reduction in size and weight and the high heat transfer performance by incorporating an organic fine particle into a working fluid and optimizing its size, mixing ratio, composition, surface properties and the like. The heat transfer device of the present invention is a heat pipe type heat transfer device comprising a closed container having housed therein a working fluid containing from 0.001 to 5 wt % of an organic fine particle having an average particle diameter of 1 to 1,000 nm.

1 . A heat pipe type heat transfer device comprising a closed container having housed therein a working fluid containing from 0.001 to 5 wt % of an organic fine particle having an average particle diameter of 1 to 1,000 nm. 
     
     
         2 . The heat pipe type heat transfer device according to  claim 1 , wherein the working fluid is an aqueous fluid and the organic fine particles are surface-hydrophilic.