Title:
ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2020/259656
Kind Code:
A1
Abstract:
Provided is an electronic expansion valve, the valve needle screw assembly (1) also includes an outer edge guide section (16), the electronic expansion valve includes an inner edge guide section (12A) matched with the outer edge guide section (16), in the process of the action of the valve needle (11) of the electronic expansion valve, the outer edge guide section (16) of the valve needle screw assembly (1) is matched with the inner edge guide section (12A) of the electronic expansion valve, to provide the guide for the valve needle (11), relatively reducing the deviation of the valve needle (11) relative to the valve port, thereby reducing the eccentric wear of the valve needle.
Inventors:
WEI XIANRANG (CN)
Application Number:
PCT/CN2020/098380
Publication Date:
December 30, 2020
Filing Date:
June 28, 2020
Export Citation:
Assignee:
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD (CN)
International Classes:
F16K1/32
Foreign References:
| CN208634406U | 2019-03-22 | |||
| CN209012452U | 2019-06-21 | |||
| JP2004169920A | 2004-06-17 | |||
| JPH08159617A | 1996-06-21 | |||
| KR20020000089A | 2002-01-04 | |||
| CN201910574593A | 2019-06-28 |
Other References:
See also references of EP 3992501A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF:
Previous Patent: IMAGE PHOTOGRAPHING METHOD AND ELECTRONIC DEVICE
Next Patent: ELECTRONIC EXPANSION VALVE
Next Patent: ELECTRONIC EXPANSION VALVE