Title:
VALVE NEEDLE ASSEMBLY, ELECTRONIC EXPANSION VALVE, AND REFRIGERATION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2023/142222
Kind Code:
A1
Abstract:
A valve needle assembly, an electronic expansion valve, and refrigeration equipment. The valve needle assembly comprises a valve needle (500), a bearing (600), and a valve rod (300). The valve needle (300) has a first end (501) and a second end (502) opposite to each other. The first end (501) is detachably mounted on a valve port (104) of the electronic expansion valve. The bearing (600) is fixedly mounted at the second end (502) by means of an outer ring. The valve rod (300) is inserted into an inner ring of the bearing (600). The technical solution aims to solve the technical problem in the prior art that a valve needle is prone to abrasion due to the fact that the valve needle rotates relative to a valve port.
Inventors:
CHEN CHAO (CN)
ZENG QINGJUN (CN)
YANG MAO (CN)
ZENG QINGJUN (CN)
YANG MAO (CN)
Application Number:
PCT/CN2022/079334
Publication Date:
August 03, 2023
Filing Date:
March 04, 2022
Export Citation:
Assignee:
GUANGDONG WELLING MOTOR MFG CO (CN)
International Classes:
F16K1/38; F16K1/02; F16K1/32; F16K1/48; F16K1/50; F25B41/345
Foreign References:
| CN110345267A | 2019-10-18 | |||
| CN111365466A | 2020-07-03 | |||
| CN111486238A | 2020-08-04 | |||
| CN109014859A | 2018-12-18 | |||
| CN109707754A | 2019-05-03 | |||
| CN209012510U | 2019-06-21 | |||
| US5687949A | 1997-11-18 | |||
| DE102019211552A1 | 2021-02-04 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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