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. 12, 2016
Filed:
May. 12, 2010
Mamoru Hamada, Tokyo, JP;
Yusuke Tashiro, Tokyo, JP;
Hisatoshi Fukumoto, Tokyo, JP;
Koji Yamashita, Tokyo, JP;
Hiroyuki Morimoto, Tokyo, JP;
Mamoru Hamada, Tokyo, JP;
Yusuke Tashiro, Tokyo, JP;
Hisatoshi Fukumoto, Tokyo, JP;
Koji Yamashita, Tokyo, JP;
Hiroyuki Morimoto, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A plurality of heat transfer fins are arranged so as to surround straight pipe portions of heat transfer tubes connected through bends in a serpentine arrangement. Heat transfer surfaces for transferring heat between air of the heat transfer tubes and the heat transfer fins have holes each having a radius smaller than the critical radius of a nucleus that occurs upon phase change from water vapor to condensed water droplets such that the holes are filled with the air at all times. Water is allowed to move from the holes filled with the air having low surface energy to metal part having high surface energy, thus improving drainage.