The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2001
Filed:
May. 15, 1997
Rohana Chandratilleke, Tokyo, JP;
Yasumi Ohtani, Yokohama, JP;
Masahiko Takahashi, Yokohama, JP;
Hideki Nakagome, Tokyo, JP;
Tatsuya Yoshino, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In a cryogenic loop heat pipe, a working fluid for heat transport is contained in a loop capillary tube, and a portion of the loop capillary tube is used as a heat absorbing portion (A) while a portion other than the heat absorbing portion (A) is used as a heat dissipating portion (B). In this heat pipe, when the heat exchange length of the heat absorbing portion A of the capillary tube is represented by l, and the inner diameter of the capillary tube at the heat absorbing portion A is represented by d, l and d satisfy,<l<,. When a Laplace constant L is given by L=[&sgr;/{(&rgr;,−&rgr;,)g}],, the inner diameter d satisfies L<d<3L.