Title:
HEAT PIPE
Document Type and Number:
Japanese Patent JP2022096268
Kind Code:
A
Abstract:
To provide a heat pipe having sufficient heat exchange performance.SOLUTION: A heat pipe includes: an outer pipe buried in the ground, formed into a cylindrical shape extending in a vertical direction, and having a heat reception surface exposed to the ground surface by facing upward and a heat radiation surface facing downward; an inner pipe coaxially disposed inside of the outer pipe; and fine particles charged in at least a part of one of regions between the outer pipe and the inner pipe, and inside of the inner pipe. First fine particles charged between the outer pipe and the inner pipe or inside of the inner pipe, among the fine particles have a small particle diameter, and second fine particles charged at a radiation surface side, and third fine particles charged at a heat receiving surface side have particle sizes larger than that of the first fine particles.SELECTED DRAWING: Figure 2
Inventors:
TSUCHIYAMA YOSHIHIKO
FUKUNAGA KOICHI
FUKUNAGA KOICHI
Application Number:
JP2020209283A
Publication Date:
June 29, 2022
Filing Date:
December 17, 2020
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F28D15/04; F24T10/40; F28D15/02; F28D21/00
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada