Title:
COMBINED PIPE FITTING AND AIR CONDITIONING SYSTEM PIPELINE
Document Type and Number:
WIPO Patent Application WO/2024/021415
Kind Code:
A1
Abstract:
A combined pipe fitting and an air conditioning system pipeline. The combined pipe fitting comprises a first pipe fitting (1), a second pipe fitting (2), and a third pipe fitting (3). The first pipe fitting (1) and the second pipe fitting (2) are stainless steel tubes. A first end (21) of the second pipe fitting (2) is connected to the first pipe fitting (1). The third pipe fitting (3) is a copper tube and comprises a first connection section (31), an effective section (32), and a second connection section (33). The first connection section (31) is fitted in a second end (22) of the second pipe fitting (2). The length of the effective section (32) is L. L is the distance of axial extension of the third pipe fitting (3), from a position where the end surface of a second end (22) of the second pipe fitting (2) is located, in a direction away from the first pipe fitting (1). The fatigue life N of the combined pipe fitting is inversely proportional to √L, and L is greater than or equal to 1 mm and less than or equal to 35 mm. The second connection section (33) is connected to an external pipe fitting.
Inventors:
SI ZHUANGWEI (CN)
ZHANG DUBO (CN)
ZHANG DUBO (CN)
Application Number:
PCT/CN2022/135397
Publication Date:
February 01, 2024
Filing Date:
November 30, 2022
Export Citation:
Assignee:
HANSHAN RUIKE METAL CO LTD (CN)
International Classes:
F16L13/02
Foreign References:
| CN115306961A | 2022-11-08 | |||
| CN208282360U | 2018-12-25 | |||
| CN108318356A | 2018-07-24 | |||
| CN106033498A | 2016-10-19 | |||
| CN113236879A | 2021-08-10 | |||
| US20170175460A1 | 2017-06-22 |
Attorney, Agent or Firm:
HANGZHOU TIANHAO PATENT AGENCY CO., LTD. (CN)
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