JPH0520569B2 - - Google Patents
Info
- Publication number
- JPH0520569B2 JPH0520569B2 JP60181585A JP18158585A JPH0520569B2 JP H0520569 B2 JPH0520569 B2 JP H0520569B2 JP 60181585 A JP60181585 A JP 60181585A JP 18158585 A JP18158585 A JP 18158585A JP H0520569 B2 JPH0520569 B2 JP H0520569B2
- Authority
- JP
- Japan
- Prior art keywords
- nacelle
- leakage
- air
- signal
- ratio
- 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
Links
- 238000000034 method Methods 0.000 claims description 4
- 238000001595 flow curve Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 claims 2
- 230000003068 static effect Effects 0.000 claims 2
- 239000000446 fuel Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US655123 | 1984-09-26 | ||
| US06/655,123 US4621520A (en) | 1984-09-26 | 1984-09-26 | Leakage detection and tracking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6183457A JPS6183457A (ja) | 1986-04-28 |
| JPH0520569B2 true JPH0520569B2 (cg-RX-API-DMAC7.html) | 1993-03-19 |
Family
ID=24627625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60181585A Granted JPS6183457A (ja) | 1984-09-26 | 1985-08-19 | ナセルからの空気漏洩の監視方法及び装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4621520A (cg-RX-API-DMAC7.html) |
| EP (1) | EP0177433B1 (cg-RX-API-DMAC7.html) |
| JP (1) | JPS6183457A (cg-RX-API-DMAC7.html) |
| DE (2) | DE3573475D1 (cg-RX-API-DMAC7.html) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3344046B2 (ja) * | 1993-12-22 | 2002-11-11 | 豊田合成株式会社 | リーク量検出装置 |
| AUPQ726600A0 (en) | 2000-05-03 | 2000-05-25 | Structural Monitoring Systems Ltd | System and method for continuous monitoring of the structural integrity of a component or structure |
| AUPQ788000A0 (en) | 2000-05-30 | 2000-06-22 | Structural Monitoring Systems Ltd | Apparatus and method for measurement of the permeability of materials |
| AUPQ823500A0 (en) | 2000-06-19 | 2000-07-13 | Structural Monitoring Systems Ltd | Apparatus for condition monitoring the integrity of fasteners and fastened joints |
| AUPR260301A0 (en) | 2001-01-18 | 2001-02-15 | Structural Monitoring Systems Ltd | Method and apparatus for remote continuous condition monitoring of a structure |
| US7500383B2 (en) | 2001-07-13 | 2009-03-10 | Structural Monitoring Systems, Ltd. | Method and apparatus for monitoring the integrity of components and structures |
| JP4770201B2 (ja) * | 2005-03-08 | 2011-09-14 | パナソニック株式会社 | 電気集塵ユニット |
| JP2006224054A (ja) * | 2005-02-21 | 2006-08-31 | Matsushita Electric Ind Co Ltd | 電気集塵ユニット |
| US8562289B2 (en) * | 2010-02-26 | 2013-10-22 | Ge Aviation Systems, Llc | Method and system for a leakage controlled fan housing |
| US9458855B2 (en) * | 2010-12-30 | 2016-10-04 | Rolls-Royce North American Technologies Inc. | Compressor tip clearance control and gas turbine engine |
| US11300365B2 (en) * | 2018-06-19 | 2022-04-12 | General Electric Company | Heat exchanger and leak detection system |
| US11846568B2 (en) * | 2021-06-09 | 2023-12-19 | Pratt & Whitney Canada Corp. | Leak detection for pressurized fluid systems |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3593567A (en) * | 1969-06-09 | 1971-07-20 | Ezra D Hartley | Leak checker |
| US3673855A (en) * | 1971-03-10 | 1972-07-04 | Lockheed Aircraft Corp | Leakage flow monitor |
| US3918291A (en) * | 1973-03-05 | 1975-11-11 | Sterer Engineering & Mfg Co | Method and apparatus for testing leakage rate |
| JPS5566730A (en) * | 1978-10-30 | 1980-05-20 | Sumitomo Metal Ind Ltd | Micro leakage detector for pipeline |
| US4363236A (en) * | 1980-04-28 | 1982-12-14 | Meyers Harry W | Method and apparatus for detecting leaks in a structure |
| DE8023502U1 (de) * | 1980-09-03 | 1981-01-22 | Alkem Gmbh, 6450 Hanau | Transportables dichtheitspruefgeraet |
-
1984
- 1984-09-26 US US06/655,123 patent/US4621520A/en not_active Expired - Lifetime
-
1985
- 1985-08-01 EP EP85630121A patent/EP0177433B1/en not_active Expired
- 1985-08-01 DE DE8585630121T patent/DE3573475D1/de not_active Expired
- 1985-08-01 DE DE198585630121T patent/DE177433T1/de active Pending
- 1985-08-19 JP JP60181585A patent/JPS6183457A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| EP0177433A2 (en) | 1986-04-09 |
| DE3573475D1 (en) | 1989-11-09 |
| US4621520A (en) | 1986-11-11 |
| DE177433T1 (de) | 1986-07-24 |
| JPS6183457A (ja) | 1986-04-28 |
| EP0177433B1 (en) | 1989-10-04 |
| EP0177433A3 (en) | 1987-09-16 |
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