Heat conductive pipe

摘要

A heat conductive pipe ( 1 ) includes a heat conductive body ( 3 ), a quantity of working fluid ( 4 ) contained in the body, and a chamber ( 610 ). The body defines a first end and a second end. The chamber is located at one end of the body. The volume of the chamber is changeable under control, wherein the working fluid flows from the first end to the second end when the volume is increasing and the working fluid flows from the second end to the first end when the volume is decreasing.