Title:
CONSTANT VALUE PARAMETER METHOD FOR DETECTING AND EVALUATING LEAKAGE IN HYDRAULIC CYLINDER AND DETECTION DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/147740
Kind Code:
A1
Abstract:
Disclosed is a constant value parameter method for detecting and evaluating leakage in a hydraulic cylinder, comprising the following steps: step (1): measuring an accurate pressure drop value Δp of leakage in a hydraulic cylinder; and step (2) determining whether the detected hydraulic cylinder meets a standard: if the product of the accurate pressure drop value Δp of the leakage in the hydraulic cylinder and a corresponding hydraulic stroke, that is, Δp×L, is less than a standard parameter C for evaluating the leakage in the hydraulic cylinder, the leakage in the hydraulic cylinder meets the standard; otherwise, the leakage does not meet the standard. Also disclosed is a detection device suitable for the constant value parameter method for detecting and evaluating leakage in a hydraulic cylinder.
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Inventors:
XU BING (CN)
LI XUGUANG (CN)
ZHANG JUNHUI (CN)
ZONG HUAIZHI (CN)
XU XINLEI (CN)
HUANG WEIDI (CN)
LI XUGUANG (CN)
ZHANG JUNHUI (CN)
ZONG HUAIZHI (CN)
XU XINLEI (CN)
HUANG WEIDI (CN)
Application Number:
PCT/CN2022/136676
Publication Date:
August 10, 2023
Filing Date:
December 05, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
F15B19/00; F15B11/08; F15B13/04; F15B21/08
Foreign References:
| CN114483711A | 2022-05-13 | |||
| CN111692162A | 2020-09-22 | |||
| CN111271341A | 2020-06-12 | |||
| CN205780047U | 2016-12-07 | |||
| CN110608215A | 2019-12-24 | |||
| CN105298988A | 2016-02-03 | |||
| CN105526210A | 2016-04-27 | |||
| CN110552933A | 2019-12-10 | |||
| US20180128292A1 | 2018-05-10 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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