Title:
ELECTRO-HYDRAULIC PROPORTIONAL VALVE AND SHOCK ABSORBER HAVING CONTINUOUS DAMPING CONTROL
Document Type and Number:
WIPO Patent Application WO/2021/249219
Kind Code:
A1
Abstract:
An electro-hydraulic proportional valve and a shock absorber having continuous damping control; the electro-hydraulic proportional valve (3) is provided with a first inlet/outlet (31) and a second inlet/outlet (32); a filtration device (4) is provided within each of the first inlet/outlet (31) and the second inlet/outlet (32), and the filtration devices (4) each comprise: a housing (41), which is provided with an accommodating chamber; and a filtration assembly (42), which is disposed within the accommodating chamber and is configured to filter oil that enters the electro-hydraulic proportional valve (3). The filtration devices (4) can effectively prevent impurities in the oil from entering the electro-hydraulic proportional valve (3), and thus the electro-hydraulic proportional valve (3) can consistently operate normally.
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Inventors:
DOU KAIFANG (CN)
ZHENG WENBO (CN)
ZHAO HAOXING (CN)
LI JUNWEI (CN)
WANG SHIWEI (CN)
ZHENG WENBO (CN)
ZHAO HAOXING (CN)
LI JUNWEI (CN)
WANG SHIWEI (CN)
Application Number:
PCT/CN2021/097132
Publication Date:
December 16, 2021
Filing Date:
May 31, 2021
Export Citation:
Assignee:
CHINA FAW CO LTD (CN)
International Classes:
F16F9/34; B01D29/03; B01D29/05; B01D29/56; B01D35/04; F16F9/32
Foreign References:
| CN111692266A | 2020-09-22 | |||
| CN205977858U | 2017-02-22 | |||
| CN102678683A | 2012-09-19 | |||
| CN202579469U | 2012-12-05 | |||
| CN201027725Y | 2008-02-27 | |||
| CN104083917A | 2014-10-08 | |||
| US20170119205A1 | 2017-05-04 | |||
| US6800194B1 | 2004-10-05 | |||
| US6722384B2 | 2004-04-20 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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