Patent ID: 6725907
Filing Date: 2004-04-27
Classification: F25B,F28D

Abstract:
A thermosiphon comprising:a condenser attached to a refrigerator for condensing a working fluid; a liquid pipe for discharging the working fluid condensed in the condenser; an evaporating pipe for vaporizing the working fluid fed from the liquid pipe in order to deprive an inside of a container of heat; and a gas pipe for returning the working fluid vaporized inside the evaporating pipe to said condenser, wherein said condenser is made up of: a condensing section made of an extruded member where a plurality of fine pores are formed; a branching section provided on an upstream side of the fine pores of the condensing section to supply the gaseous working fluid returned from the gas pipe to each of the fine pores of the condensing section; and a collecting section provided on a downstream side of the fine pores of the condensing section to collect the working fluid condensed in the fine pores of the condensing section and then supply the working fluid into the liquid pipe, wherein the gas pipe is connected to an upper portion of the branching section while the liquid is connected to an lower portion of the collecting section; and wherein said plurality of fine pores of said condensing section are arranged to extend in parallel along a longitudinal direction of the condensing section, said fine pores being vertically aligned in a cross section of the condensing section.