Title:
ELECTRONIC EXPANSION VALVE
Document Type and Number:
WIPO Patent Application WO/2018/188500
Kind Code:
A1
Abstract:
An electronic expansion valve (100), comprising a valve component (10) and a stator component (20); the valve component comprises a valve body assembly (1), a valve core (2), a threaded transmission assembly (3), and a rotor (4), the valve body assembly being provided with a valve opening, and the valve core, driven by the threaded transmission assembly, being able to control the opening degree of the valve opening; an abrasion resistant coating layer is arranged on the contact surface of at least one component of the components of the electronic expansion valve having relative movement, the abrasion resistant coating layer being applied by means of a spray coating method, the thickness of the abrasion resistant coating being 5 to 8 microns, and the material of the abrasion resistant coating layer comprising molybdenum disulphide material and polytetrafluoroethylene material; the provided abrasion resistant coating layer reduces wear, increasing the service life of the electronic expansion valve.
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Inventors:
ZHOU LEI (CN)
CAI JIANGNAN (CN)
LU YINGCHONG (CN)
CAI JIANGNAN (CN)
LU YINGCHONG (CN)
Application Number:
PCT/CN2018/081703
Publication Date:
October 18, 2018
Filing Date:
April 03, 2018
Export Citation:
Assignee:
HANGZHOU SANHUA RES INST CO LTD (CN)
International Classes:
F16K1/32; F16K31/50; F25B41/31
Foreign References:
| CN206874939U | 2018-01-12 | |||
| CN203009981U | 2013-06-19 | |||
| CN103711925A | 2014-04-09 | |||
| CN103711950A | 2014-04-09 | |||
| CN105255349A | 2016-01-20 | |||
| JPH10205638A | 1998-08-04 | |||
| JP2000120885A | 2000-04-28 | |||
| CN201710234824A | 2017-04-12 |
Other References:
See also references of EP 3611409A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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