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:
Feb. 18, 2020
Filed:
Jul. 03, 2018
Mitsubishi Electric Corporation, Tokyo, JP;
Shin Nakamura, Tokyo, JP;
Akira Ishibashi, Tokyo, JP;
Shinya Higashiiue, Tokyo, JP;
Daisuke Ito, Tokyo, JP;
Shigeyoshi Matsui, Tokyo, JP;
Yuki Ugajin, Tokyo, JP;
Takashi Okazaki, Tokyo, JP;
Atsushi Mochizuki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Plate-shaped fins of a heat exchanger each include, at circumferential portions thereof defining a notch in which a heat transfer tube having a flattened shape is disposed, fin collars formed by being raised from the circumferential portions. Each of the fin collars includes, in a position that faces a long axis side surface of the heat transfer tube, at least one reflare section bent in a direction opposite to the side surface. At least one of the reflare sections defining fin pitches between the adjoining plate-shaped fins is formed so that a reflare tip portion, which is a tip portion of the reflare section, is drawn apart from a contact side surface of the plate-shaped fin with which the reflare section comes into contact.