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Title: Dual manifold heat pipe evaporator

An improved evaporator section for a dual manifold heat pipe. Both the upper and lower manifolds can have surfaces exposed to the heat source which evaporate the working fluid. The tubes in the tube bank between the manifolds have openings in their lower extensions into the lower manifold to provide for the transport of evaporated working fluid from the lower manifold into the tubes and from there on into the upper manifold and on to the condenser portion of the heat pipe. A wick structure lining the inner walls of the evaporator tubes extends into both the upper and lower manifolds. At least some of the tubes also have overflow tubes contained within them to carry condensed working fluid from the upper manifold to pass to the lower without spilling down the inside walls of the tubes.
 [1];  [1]
  1. (Albuquerque, NM)
Issue Date:
OSTI Identifier:
Sandia National Laboratories (Albuquerque, NM) SNL
Patent Number(s):
US 5275232
Contract Number:
Research Org:
Country of Publication:
United States
dual; manifold; heat; pipe; evaporator; improved; section; upper; manifolds; surfaces; exposed; source; evaporate; fluid; tubes; tube; bank; openings; extensions; provide; transport; evaporated; condenser; portion; wick; structure; lining; inner; walls; extends; overflow; contained; carry; condensed; pass; spilling; inside; tube bank; flow tube; tubes extend; inner wall; heat pipe; heat source; inside wall; wick structure; inner walls; surfaces exposed; tubes contain; dual manifold; manifold heat; /165/122/159/