Patent ID: 8438847

Claim:
A heat-pipe electric power generating device, comprising: a heat pipe having an evaporating end, a condensing end, and a confined space between the evaporating end and the condensing end, wherein a pressure difference exists between the evaporating end and the condensing end, such that a vapor flow flowing from the evaporating end to the condensing end is generated; a non-magnetic shell connected to the condensing end and communicating with the confined space; a magnetic field change generator comprising: at least a turbine disposed within the confined space; a hollow shell disposed within the confined space and located between the at least a turbine and the evaporating end, the hollow shell having a circular side wall, a vapor flow channel, and an opening located at the circular side wall, wherein an end of the hollow shell contacts the evaporating end, the vapor flow channel faces the at least a turbine, and the circular side wall is adhered to an inner wall of the heat pipe; a driving axle connected to the at least a turbine and extended into the non-magnetic shell; a magnetic element disposed at the driving axle and located within the non-magnetic shell; and a generator stator coil disposed at the outer of the non-magnetic shell, wherein the vapor flow enters the hollow shell through the opening and is guided to the at least a turbine through the vapor flow channel, such that the at least a turbine is driven to move the magnetic element, and that the generator stator coil generates electric power.