JP2018112464A - 液漏れ検知装置 - Google Patents
液漏れ検知装置 Download PDFInfo
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- JP2018112464A JP2018112464A JP2017002763A JP2017002763A JP2018112464A JP 2018112464 A JP2018112464 A JP 2018112464A JP 2017002763 A JP2017002763 A JP 2017002763A JP 2017002763 A JP2017002763 A JP 2017002763A JP 2018112464 A JP2018112464 A JP 2018112464A
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- pair
- liquid leakage
- detection device
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- flat plates
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- 239000007788 liquid Substances 0.000 title claims abstract description 88
- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 24
- 239000010720 hydraulic oil Substances 0.000 abstract description 30
- 239000000428 dust Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims (5)
- シャフトを有する流体圧装置に用いられる液漏れ検知装置であって、
所定の隙間を空けて互いに対向する一対の平行平板を有する電極部と、
前記電極部における電気的特性に基づいて、前記一対の平行平板間における液体の有無を判定して液漏れを検知する検知部と、を備え、
前記電極部は、前記一対の平行平板間の前記隙間が前記シャフトの外周面に臨むように設けられることを特徴とする液漏れ検知装置。 - 前記電気的特性は、静電容量であることを特徴とする請求項1に記載の液漏れ検知装置。
- 前記一対の平行平板は、それぞれ環状に形成され前記シャフトの軸方向に並んで設けられることを特徴とする請求項1または2に記載の液漏れ検知装置。
- 前記平行平板は、周方向に分割されていることを特徴とする請求項3に記載の液漏れ検知装置。
- 前記電極部は、前記シャフトを支持する前記流体圧装置のハウジングの外部に設けられることを特徴とする請求項1から4のいずれか一つに記載の液漏れ検知装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017002763A JP6817820B2 (ja) | 2017-01-11 | 2017-01-11 | 液漏れ検知装置 |
PCT/JP2018/000169 WO2018131560A1 (ja) | 2017-01-11 | 2018-01-09 | 液漏れ検知装置 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2017002763A JP6817820B2 (ja) | 2017-01-11 | 2017-01-11 | 液漏れ検知装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018112464A true JP2018112464A (ja) | 2018-07-19 |
JP6817820B2 JP6817820B2 (ja) | 2021-01-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017002763A Active JP6817820B2 (ja) | 2017-01-11 | 2017-01-11 | 液漏れ検知装置 |
Country Status (2)
Country | Link |
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JP (1) | JP6817820B2 (ja) |
WO (1) | WO2018131560A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020031973A1 (ja) * | 2018-08-10 | 2020-02-13 | Kyb株式会社 | 流体漏れ検出システム |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11499546B2 (en) | 2018-07-31 | 2022-11-15 | Bio-Chem Fluidics, Inc. | Piston pump comprising an electro-fluidic leak detection element |
EP3767267B1 (en) * | 2019-07-19 | 2023-01-04 | ABB Schweiz AG | Oil leakage sensor for motors |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6111626A (ja) * | 1984-06-27 | 1986-01-20 | Hitachi Ltd | 液体漏れ検出装置 |
JPH0199038U (ja) * | 1987-12-23 | 1989-07-03 | ||
JPH0545246A (ja) * | 1991-08-09 | 1993-02-23 | Eagle Ind Co Ltd | 軸封装置用漏れ検出装置 |
JP2000180289A (ja) * | 1998-12-17 | 2000-06-30 | Kayaba Ind Co Ltd | 油漏れ検出器 |
US20110205072A1 (en) * | 2010-02-22 | 2011-08-25 | Rached Ben-Mansour | Leak detection band |
-
2017
- 2017-01-11 JP JP2017002763A patent/JP6817820B2/ja active Active
-
2018
- 2018-01-09 WO PCT/JP2018/000169 patent/WO2018131560A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6111626A (ja) * | 1984-06-27 | 1986-01-20 | Hitachi Ltd | 液体漏れ検出装置 |
JPH0199038U (ja) * | 1987-12-23 | 1989-07-03 | ||
JPH0545246A (ja) * | 1991-08-09 | 1993-02-23 | Eagle Ind Co Ltd | 軸封装置用漏れ検出装置 |
JP2000180289A (ja) * | 1998-12-17 | 2000-06-30 | Kayaba Ind Co Ltd | 油漏れ検出器 |
US20110205072A1 (en) * | 2010-02-22 | 2011-08-25 | Rached Ben-Mansour | Leak detection band |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020031973A1 (ja) * | 2018-08-10 | 2020-02-13 | Kyb株式会社 | 流体漏れ検出システム |
JP2020026845A (ja) * | 2018-08-10 | 2020-02-20 | Kyb株式会社 | 流体漏れ検出システム及び異常診断方法 |
CN111247347A (zh) * | 2018-08-10 | 2020-06-05 | Kyb株式会社 | 流体泄漏检测系统 |
CN111247347B (zh) * | 2018-08-10 | 2022-03-22 | Kyb株式会社 | 流体泄漏检测系统 |
Also Published As
Publication number | Publication date |
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WO2018131560A1 (ja) | 2018-07-19 |
JP6817820B2 (ja) | 2021-01-20 |
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