CN1095075C - Leakage fault diagnosing method for hydraulic system - Google Patents
Leakage fault diagnosing method for hydraulic system Download PDFInfo
- Publication number
- CN1095075C CN1095075C CN 98125047 CN98125047A CN1095075C CN 1095075 C CN1095075 C CN 1095075C CN 98125047 CN98125047 CN 98125047 CN 98125047 A CN98125047 A CN 98125047A CN 1095075 C CN1095075 C CN 1095075C
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- CN
- China
- Prior art keywords
- hydraulic
- formula
- delta
- integral
- leakage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Examining Or Testing Airtightness (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98125047 CN1095075C (en) | 1998-11-30 | 1998-11-30 | Leakage fault diagnosing method for hydraulic system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 98125047 CN1095075C (en) | 1998-11-30 | 1998-11-30 | Leakage fault diagnosing method for hydraulic system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1227918A CN1227918A (en) | 1999-09-08 |
CN1095075C true CN1095075C (en) | 2002-11-27 |
Family
ID=5228991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 98125047 Expired - Lifetime CN1095075C (en) | 1998-11-30 | 1998-11-30 | Leakage fault diagnosing method for hydraulic system |
Country Status (1)
Country | Link |
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CN (1) | CN1095075C (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10218830C1 (en) * | 2002-04-26 | 2003-12-18 | Siemens Ag | Diagnostic system and method for a valve |
US10338580B2 (en) | 2014-10-22 | 2019-07-02 | Ge Global Sourcing Llc | System and method for determining vehicle orientation in a vehicle consist |
US10464579B2 (en) | 2006-04-17 | 2019-11-05 | Ge Global Sourcing Llc | System and method for automated establishment of a vehicle consist |
CN101454580B (en) * | 2007-02-14 | 2012-08-01 | 费斯托股份有限两合公司 | Method for fault localization and diagnosis in a fluidic installation |
US8261595B2 (en) * | 2009-11-03 | 2012-09-11 | General Electric Company | Method and system for fluid valve leak detection |
CN102108992B (en) * | 2009-12-25 | 2013-07-03 | 鞍钢股份有限公司 | Method for determining and maintaining defect of servo valve |
CN102338137A (en) * | 2011-08-25 | 2012-02-01 | 中联重科股份有限公司 | Method for detecting hydraulic valve, controller and device, method for detecting malfunction of hydraulic loop and device and malfunction processing system |
US8984930B2 (en) * | 2011-09-15 | 2015-03-24 | General Electric Company | System and method for diagnosing a reciprocating compressor |
US9897082B2 (en) | 2011-09-15 | 2018-02-20 | General Electric Company | Air compressor prognostic system |
US20130280095A1 (en) | 2012-04-20 | 2013-10-24 | General Electric Company | Method and system for reciprocating compressor starting |
WO2014055731A1 (en) * | 2012-10-05 | 2014-04-10 | Eaton Corporation | Automatic oil spill detection system |
CN103398043B (en) * | 2013-07-31 | 2016-06-08 | 中联重科股份有限公司 | For detecting method, equipment, system and the engineering machinery let out in oil cylinder |
CN104533883B (en) * | 2014-12-30 | 2017-02-22 | 中国人民解放军理工大学 | Hydraulic diagnostic device simulating fault of hydraulic system |
CN104819836B (en) * | 2015-05-06 | 2017-04-12 | 西安航空制动科技有限公司 | Method for verifying internal leakage fault of aircraft brake valve |
CN106592676A (en) * | 2016-12-06 | 2017-04-26 | 泸州长江液压密封件有限公司 | Supporting leg hydraulic cylinder suitable for engineering machine |
JP7254745B2 (en) * | 2020-05-29 | 2023-04-10 | Ckd株式会社 | Fluid flow switching device |
CN113028299B (en) * | 2021-03-03 | 2022-04-29 | 西北工业大学 | Gas-liquid equivalent detection method and system for micro leakage of aviation hydraulic pipeline |
-
1998
- 1998-11-30 CN CN 98125047 patent/CN1095075C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1227918A (en) | 1999-09-08 |
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Legal Events
Date | Code | Title | Description |
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
ASS | Succession or assignment of patent right |
Owner name: BAOGANG STEEL CO., LTD. Free format text: FORMER OWNER: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Effective date: 20020124 Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER OWNER: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD Effective date: 20020129 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20020129 Address after: 310027 Zhejiang University, Zhejiang, Hangzhou Applicant after: ZHEJIANG University Co-applicant after: Baosteel Iron and Steel Co.,Ltd. Address before: 310027 Zhejiang University, Zhejiang, Hangzhou Applicant before: Zhejiang University Co-applicant before: BAOSHAN IRON & STEEL CO.,LTD. Effective date of registration: 20020124 Address after: 310027 Zhejiang University, Zhejiang, Hangzhou Applicant after: ZHEJIANG University Co-applicant after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 310027 Zhejiang University, Zhejiang, Hangzhou Applicant before: Zhejiang University Co-applicant before: Baosteel Group Corporation |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20021127 |