Title:
SOLENOID VALVE
Document Type and Number:
WIPO Patent Application WO/2022/001873
Kind Code:
A1
Abstract:
A solenoid valve (100), comprising a piston (10) and a valve core (20); the piston (10) is provided with an inner cavity (11) for accommodating the valve core (20), the inner cavity (11) comprises a first liquid inlet (111), and the valve core (20) is movably provided in the inner cavity (11); and the solenoid valve (100) further comprises a positioning sleeve (30); the positioning sleeve (30) is provided with a first flow channel (31) in communication with the inner cavity (11), and the positioning sleeve (30) is accommodated in the inner cavity (11) and is located at the side of the valve core (20) relatively close to the first liquid inlet (111) and can stop the valve core (20). The positioning sleeve (30) will not be skewed relative to the piston (10), and therefore the positioning sleeve (30) can bear repeated impact of the valve core (20), preventing the valve core (20) from detaching from the piston (10) and even falling into a hydraulic control system to cause a failure.
Inventors:
JIN YONG (CN)
TIAN PENG (CN)
HUANG HONGFENG (CN)
ZHAO JUN (CN)
TU LIEFENG (CN)
TIAN PENG (CN)
HUANG HONGFENG (CN)
ZHAO JUN (CN)
TU LIEFENG (CN)
Application Number:
PCT/CN2021/102383
Publication Date:
January 06, 2022
Filing Date:
June 25, 2021
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F15B13/02; F16K1/42; F16K31/06
Foreign References:
| CN101893098A | 2010-11-24 | |||
| CN2135629Y | 1993-06-09 | |||
| CN103322205A | 2013-09-25 | |||
| CN111237529A | 2020-06-05 | |||
| CN204961974U | 2016-01-13 | |||
| JPS5565781A | 1980-05-17 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (HANGZHOU) (CN)
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