Evidence map›Paper›PMID 40594402›Full record

ArticleScientific reports2025

Experimental study on a three-position four-way water hydraulic directional valve with a novel sealing structure.

Xi Zhang, Xijie Fan, Jiawei Liang, Kailu Chen, Daoying Gao, Zeqian Wang, Hongyu Xu, Miaomiao Gao

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Xi ZhangSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Xijie FanSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China. bqt2200401004@student.cumtb.edu.cn.
Jiawei LiangSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Kailu ChenSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Daoying GaoSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Zeqian WangSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Hongyu XuSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.
Miaomiao GaoSchool of Mechanical and Electrical Engineering, China University of Mining & Technology-Beijing, Beijing, 100083, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Water is a clean and pollution-free medium, making it an excellent alternative to hydraulic oil as a transmission medium. However, the widespread application of water hydraulic systems is currently hindered by poor sealing performance and the complex structure of control components. To address these challenges, this study introduces an innovative 4/3 water hydraulic directional valve. The proposed valve adopts a contact-type dynamic sealing structure, which offers superior sealing performance and the ability to withstand a wider range of high pressures. Additionally, it features a simple structure and low manufacturing cost. A prototype was developed and subjected to rigorous performance testing. The experimental results demonstrate that the valve realizes reliable directional control functions, exhibits excellent dynamic characteristics, and ensures safe and reliable control of hydraulic cylinders. Under different pressure conditions, the valve maintains ideal sealing performance both in the neutral and working positions after directional switching. The development of the novel 4/3 water hydraulic directional valve not only enriches the range and application scope of water hydraulic components but also shows significant potential for advancing hydraulic transmission technology from oil-based to water-based systems.

Indexed as

Directional valveDynamic characteristicsSealingSpool valveWater hydraulic

Identifiers

PMID40594402
PMCPMC12214617

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.