Heat pipes for cooling pole windings of salient pole machines
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United States of America Patent
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-
Aug 18, 1992
Grant Date -
N/A
app pub date -
Jul 5, 1991
filing date -
Jul 5, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Heat pipes having predetermined configurations and positioned within the wedges and wedge retainers for maintaining the rotor field windings in position for efficiently collecting heat generated along the length of the rotor field windings and rotor surface and transporting this heat to the ends of the rotor where it is transferred to a coolant medium such as a gas or spray liquid are disclosed. The particular heat pipe positioning and configuration provides an optimal amount of heat transfer surface area for transferring heat from the wedge material to a volatile fluid within the heat pipe. Heat is thus efficiently transferred to the volatile fluid which changes the volatile fluid from a liquid phase to a vapor phase where the vapor flows at a high speed to a condenser section beyond the axial length of the rotor field windings where heat is dissipated from the volatile fluid to the cooling medium.
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