Title:
AIR CYLINDER AND CRYOGENIC REFRIGERATING MACHINE USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/200642
Kind Code:
A1
Abstract:
Disclosed is an air cylinder (13). A spiral groove (1321) is disposed on an outer surface of a cylinder body of the air cylinder (13); a thickness of the bottom of the spiral groove (1321) is less than a thickness of a circumferential edge (1322) of the cylinder body of the air cylinder (13); and the circumferential edge (1322) of the cylinder body constitutes a reinforcing rib spirally and continuously wounded on the cylinder body of the air cylinder (13). Further disclosed is a cryogenic refrigerating machine comprising the air cylinder (13). A spiral groove is disposed on the outer surface of the cylinder body; the thickness of the bottom of the spiral groove is less than the thickness of the circumferential edge of the cylinder body of the air cylinder; and the circumferential edge of the cylinder body constitutes a reinforcing rib spirally and continuously wounded on the cylinder body of the air cylinder; thus, the contradiction of the strength of the cylinder body of the air cylinder and heat leakage with the thickness of the cylinder body is solved and the air cylinder has the characteristics of high strength, low heat leakage and good workability.
Inventors:
LI AO (CN)
ZHOU ZHIPO (CN)
QIAN JIFENG (CN)
WANG LIZHI (CN)
ZHOU ZHIPO (CN)
QIAN JIFENG (CN)
WANG LIZHI (CN)
Application Number:
PCT/CN2018/087119
Publication Date:
October 24, 2019
Filing Date:
May 16, 2018
Export Citation:
Assignee:
CSIC PRIDE NANJING CRYOGENIC TECH CO LTD (CN)
International Classes:
F25B9/14; F16J10/02
Foreign References:
| CN208139618U | 2018-11-23 | |||
| CN102518525A | 2012-06-27 | |||
| CN106016803A | 2016-10-12 | |||
| CN102844633A | 2012-12-26 | |||
| CN201687592U | 2010-12-29 | |||
| CN103032987A | 2013-04-10 | |||
| JP3851929B2 | 2006-11-29 |
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
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