Title:
冷媒配管、及び、冷凍装置
Document Type and Number:
Japanese Patent JP7477777
Kind Code:
B2
Abstract:
To facilitate connection between a refrigerant pipe made of stainless steel and a refrigerant pipe made of a material other than the stainless steel.SOLUTION: A refrigerant pipe 10A comprises a first pipe 21 and a second pipe 22. The first pipe 21 comprises: a pipe body 21a made of stainless steel; and a connecting pipe 21b provided at an end part in a pipe axis direction of the pipe body 21a, and made of a material different from the stainless steel. The connecting pipe 21b comprises a protruding part 21b1 protruding in the pipe axis direction from the end part of the pipe body 21a. The second pipe 22 comprises: a second large diameter part 22a made of the same material as that of the connecting pipe 21b, and arranged at an end part in the pipe axis direction; a second small diameter part 22b having a smaller diameter than that of the second large diameter part 22a, and a step part 22c arranged between the second large diameter part 22a and the second small diameter part 22b. The connecting pipe 21b is inserted into the second large diameter part 22a. The protruding part 21b1 is in contact with the step part 22c. An outer peripheral surface of the connecting pipe 21b is connected to an inner peripheral surface of the second large diameter part 22a.SELECTED DRAWING: Figure 2
Inventors:
Junichi Hamadate
Yoshihiro Teramoto
Masanori Kondo
Hiroaki Matsuda
Masato Okuno
Yoshihiro Teramoto
Masanori Kondo
Hiroaki Matsuda
Masato Okuno
Application Number:
JP2021080648A
Publication Date:
May 02, 2024
Filing Date:
May 11, 2021
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B41/40; F16L13/08
Domestic Patent References:
| JP61037484U | ||||
| JP2010151327A | ||||
| JP5094593U | ||||
| JP2017137961A | ||||
| JP6041014B1 | ||||
| JP2016205610A |
Foreign References:
| US8876425 |
Attorney, Agent or Firm:
Patent Attorney Corporation Suncrest International Patent Office