The cross sectional variation of {HEAD ~ the vapor passage} in {TAIL ~ the heat pipe} between the two outermost heat transfer zones is advantageously brought about by a displacement body arranged internally of the heat pipe with a particular surface contour 
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The cross sectional variation of { HEAD ~ the vapor passage } in { TAIL ~ the heat pipe } between the two outermost heat transfer zones is advantageously brought about by a displacement body arranged internally of the heat pipe with a particular surface contour
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH