Self-excited oscillating flow heat pipe

Abstract

A self-excited oscillating flow heat pipe includes a heating unit having a wick therein; a cooling unit filled with a working fluid; a connection channel which rectilinearly connects the heating unit with the cooling unit, and has a smaller channel cross-sectional area than the channel cross-sectional area of the heating unit; a liquid plug protruding into the connection channel from the cooling unit and containing the working fluid; and a vapor plug in the heating unit containing the vaporized working fluid. The liquid plug oscillates self-excitedly in the connection channel.

1 . A self-excited oscillating flow heat pipe comprising:
 a heating unit having a wick therein;   a cooling unit filled with a working fluid;   a connection channel which rectilinearly connects the heating unit with the cooling unit, and has a smaller channel cross-sectional area than the channel cross-sectional area of the heating unit;   a liquid plug protruding into the connection channel from the cooling unit and containing the working fluid; and   a vapor plug in the heating unit containing the vaporized working fluid,   wherein the liquid plug oscillates self-excitedly in the connection channel.   
     
     
         2 . The self-excited oscillating flow heat pipe according to  claim 1 ,
 wherein the working fluid filled in the cooling unit has a free liquid level which is not bound to internal pressure.   
     
     
         3 . The self-excited oscillating flow heat pipe according to  claim 1 ,
 wherein the cooling unit has an opening, and the opening is provided with an adjustment unit which adjusts the internal volume of the cooling unit.   
     
     
         4 . The self-excited oscillating flow heat pipe according to  claim 1 ,
 wherein the ratio of the cross-sectional area of the heating unit and the cross-sectional area of the connection channel is from 10:1 to 2:1.