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:
Aug. 06, 2024
Filed:
Oct. 23, 2023
Daikin Industries, Ltd., Osaka, JP;
Hiroyuki Nakano, Osaka, JP;
Atsushi Yamamoto, Osaka, JP;
Shouta Agou, Osaka, JP;
Ryo Koyama, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A heat transfer tube as a first refrigerant pipe has a first portion, a first expansion portion, a second portion, a second expansion portion, and a third portion arranged in order. A connecting tube as a second refrigerant pipe has a fourth portion facing the second portion and a fifth portion facing the third portion. The connecting tube is inserted into the heat transfer tube. The inner diameter of the second portion is larger than the inner diameter of the first portion, and the inner diameter of the third portion is larger than the inner diameter of the second portion. The outer diameter of the fifth portion is larger than the outer diameter of the fourth portion. The fifth portion and the third portion are brazed.