Title:
HEAT TRANSFER PIPE, HEAT EXCHANGER, PIPE EXPANDING TOOL, PIPE EXPANDING DEVICE, METHOD FOR CONNECTING HEAT TRANSFER PIPE AND PIPE, AND METHOD FOR MANUFACTURING HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2023/223831
Kind Code:
A1
Abstract:
A heat transfer pipe (1A) is provided with a flared portion (30) which has a spherical-zone shape and in which an inner diameter of a leading end is larger than that of a base end. A pipe as a connection target is passed through the flared portion (30). Further, the flared portion (30) is connected to the pipe by a brazing material with which a gap between the pipe and the inner wall of the flared portion (30) is filled.
Inventors:
TACHIBANA NOBUHIRO (JP)
SAITO TAKUYA (JP)
CHIMURA HIROSHI (JP)
SAITO TAKUYA (JP)
CHIMURA HIROSHI (JP)
Application Number:
PCT/JP2023/017110
Publication Date:
November 23, 2023
Filing Date:
May 02, 2023
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B23K1/00; B23K1/18; B23K33/00; F16L13/08; F28F1/00; F28F1/32
Foreign References:
| US20160290741A1 | 2016-10-06 | |||
| JPS55148862U | 1980-10-27 | |||
| JPS5346457A | 1978-04-26 | |||
| JPH07236968A | 1995-09-12 | |||
| JPH09192759A | 1997-07-29 |
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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