Patent ID: 6889753
Filing Date: 2005-05-10
Classification: F28D,H01L

Abstract:
1. A capillary tube heat pipe having a heat receiving portion, a heat radiating portion and a heat transfer portion connecting said heat receiving portion and said heat radiating portion, the capillary tube heat pipe comprising: a capillary tube which forms a closed loop; wherein the capillary tube has an inner diameter which is less than a maximum diameter which enables the working fluid to circulate in the capillary tube while being sealed inside the capillary tube; wherein said heat transfer portion is constructed from only one pair of going and returning passages; wherein the working fluid is capable of alternately flowing in a forward direction and a reverse direction within the capillary tube; and wherein the heat receiving portion and heat radiating portion comprise a high heat conductive material, and the heat transfer portion comprises a low heat conductive material.