Title:
HEAT EXCHANGER
Document Type and Number:
Japanese Patent JP2019132531
Kind Code:
A
Abstract:
To solve the problem in which throttling and closing an end part of a pipe is difficult in the case where an aluminum pipe different from a conventional copper pipe is used in a header part of a heat exchanger.SOLUTION: A header part 100 of heat exchanger includes: a pipe 101 made of aluminum or aluminum alloy which has an opening 121 at an end; and a welded part 201 for closing the opening 121. The pipe 101 includes: a body 111 in which the diameter of the cross section is constant; a first annular part 112 which is closer to the opening 121 than the body 111, which is annular and which protrudes to the outside; and a second annular part 113 which is closer to the opening 121 than the first annular part 112, which is annular and which protrudes to the inside.SELECTED DRAWING: Figure 8
Inventors:
SATO TAKESHI
SHINDO MASANORI
YAMADA KOKI
MATSUDA HIROAKI
ORITANI YOSHIO
SHINDO MASANORI
YAMADA KOKI
MATSUDA HIROAKI
ORITANI YOSHIO
Application Number:
JP2018015300A
Publication Date:
August 08, 2019
Filing Date:
January 31, 2018
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F28F9/18; B23K9/00; F28F19/06; F28F21/08
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation