Title:
ELECTRONIC EXPANSION VALVE AND REFRIGERATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/021821
Kind Code:
A1
Abstract:
An electronic expansion valve (10), comprising a valve seat (100), a connection seat (200), a guide sleeve (300), a valve port seat (400), a valve needle assembly (500), a nut assembly (600) and a valve casing (700). By separately arranging the connection seat and the guide sleeve, the electronic expansion valve reduces the processing requirements on the connection seat and the guide sleeve, resulting in small machining allowances, low degree of cutter wear, and reduced material consumption. Meanwhile, the interior of the electronic expansion valve is further provided with a balance channel (800), so that the pressure balance in the electronic expansion valve is ensured, thus reducing the material requirements on coils and rotors. Also disclosed is a refrigeration apparatus comprising the electronic expansion valve.
Inventors:
YANG MAO (CN)
CHEN CHAO (CN)
REN WEIFENG (CN)
CHEN CHAO (CN)
REN WEIFENG (CN)
Application Number:
PCT/CN2023/096408
Publication Date:
February 01, 2024
Filing Date:
May 25, 2023
Export Citation:
Assignee:
GUANGDONG WELLING MOTOR MFG CO (CN)
International Classes:
F16K3/26; F16K3/30; F16K27/04; F16K31/50
Foreign References:
| CN217784255U | 2022-11-11 | |||
| CN106678382A | 2017-05-17 | |||
| CN216742910U | 2022-06-14 | |||
| CN109780224A | 2019-05-21 | |||
| JPH1089528A | 1998-04-10 | |||
| US5086808A | 1992-02-11 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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