DD281232A5 - Verfahren und vorrichtung zur leckpruefung an mit daempfen und/oder fluessigkeiten gefuellten systemen - Google Patents
Verfahren und vorrichtung zur leckpruefung an mit daempfen und/oder fluessigkeiten gefuellten systemen Download PDFInfo
- Publication number
- DD281232A5 DD281232A5 DD88314212A DD31421288A DD281232A5 DD 281232 A5 DD281232 A5 DD 281232A5 DD 88314212 A DD88314212 A DD 88314212A DD 31421288 A DD31421288 A DD 31421288A DD 281232 A5 DD281232 A5 DD 281232A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- test gas
- liquid
- leak
- helium
- leaks
- Prior art date
Links
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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
- G01M3/228—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for radiators
-
- 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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
-
- 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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
- G01M3/205—Accessories or associated equipment; Pump constructions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP87104737 | 1987-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
DD281232A5 true DD281232A5 (de) | 1990-08-01 |
Family
ID=8196883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD88314212A DD281232A5 (de) | 1987-03-31 | 1988-03-30 | Verfahren und vorrichtung zur leckpruefung an mit daempfen und/oder fluessigkeiten gefuellten systemen |
Country Status (5)
Country | Link |
---|---|
US (1) | US4918975A (fr) |
EP (2) | EP0365042A1 (fr) |
JP (1) | JPS63256833A (fr) |
DD (1) | DD281232A5 (fr) |
DE (1) | DE3870299D1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9010175B2 (en) | 2012-01-06 | 2015-04-21 | GM Global Technology Operations LLC | Die coolant system with an integral and automatic leak test |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4898021A (en) * | 1988-11-30 | 1990-02-06 | Westinghouse Electric Corp. | Quantitative air inleakage detection system and method for turbine-condenser systems |
DE9202350U1 (de) * | 1992-02-24 | 1992-04-16 | Leybold AG, 6450 Hanau | In Flüssigkeiten einsetzbare Gassonde |
US5369983A (en) * | 1992-04-17 | 1994-12-06 | Minnesota Mining And Manufacturing Company | Detection medium and method for use in hermetic seal testing |
DE4228085A1 (de) * | 1992-08-24 | 1994-03-03 | Leybold Ag | Verfahren und Vorrichtung zum Nachweis eines leichten Testgases in einer Flüssigkeit |
DE4326264A1 (de) * | 1993-08-05 | 1995-02-09 | Leybold Ag | Testgasdetektor mit Vakuumpumpe sowie Verfahren zum Betrieb eines Testgasdetektors dieser Art |
DE4326265A1 (de) * | 1993-08-05 | 1995-02-09 | Leybold Ag | Testgasdetektor, vorzugsweise für Lecksuchgeräte, sowie Verfahren zum Betrieb eines Testgasdetektors dieser Art |
CH688978A5 (de) * | 1994-07-11 | 1998-06-30 | Escher Wyss Gmbh | Verfahren und Vorrichtung zur Ueberwachung von mit Gas beaufschlagten Fluessigkeiten . |
US5608167A (en) * | 1995-02-21 | 1997-03-04 | Orbisphere Laboratories Neuchatel Sa | Membrane-enclosed sensor, flow control element and analytic method |
FR2734633B1 (fr) * | 1995-05-24 | 1997-06-20 | Cit Alcatel | Installation pour detecter la presence d'helium dans un circuit de fluide |
NL1002377C2 (nl) * | 1996-02-19 | 1997-08-20 | Hoogovens Staal Bv | Werkwijze, blaasvorm en systeem voor het detecteren van een lek in een met vloeistof gekoeld gedeelte van een blaasvorm van een hoogoven. |
DE19651073A1 (de) * | 1996-12-09 | 1998-06-10 | Asea Brown Boveri | Verfahren zur Ermittlung von Lecks im geschlossenen oder halboffenen Kühlsystem einer Gasturbine |
US6067844A (en) * | 1997-08-15 | 2000-05-30 | Shell Oil Company | Nondestructive method for detection of defects and the condition of liners in polymer-lined pipes and equipment |
GB2338072A (en) * | 1998-06-04 | 1999-12-08 | Aea Technology Plc | Leak detection |
DE19846799A1 (de) * | 1998-10-10 | 2000-04-13 | Leybold Vakuum Gmbh | Verfahren zum Betrieb eines Folien-Lecksuchers sowie für die Durchführung dieses Verfahrens geeigneter Folien-Lecksucher |
US6401465B1 (en) * | 2000-10-19 | 2002-06-11 | Carrier Corporation | Absorption chiller leak detection and location and checking hydrogen removing cells |
US6766259B2 (en) * | 2002-07-29 | 2004-07-20 | Baxter International Inc. | System and a method for detecting fiber damage in a dialyzer |
US7320243B2 (en) * | 2003-06-11 | 2008-01-22 | Varian, Inc. | Methods and apparatus for detection of large leaks in sealed articles |
EP1631805B1 (fr) * | 2003-06-11 | 2016-07-20 | Agilent Technologies, Inc. | Procedes et appareil de detection de fuites par la technique d'accumulation |
WO2004113862A1 (fr) * | 2003-06-11 | 2004-12-29 | Varian, Inc. | Procedes et appareil de detection des fuites dans des environnements contamines |
US20050050943A1 (en) * | 2003-09-08 | 2005-03-10 | Tom Barber | Dry aerosol leak detection for dialyzers |
US7134322B1 (en) * | 2004-09-02 | 2006-11-14 | Equipment Imaging And Solutions, Inc. | Locating one or more leaks in a power generating system while the power generating system is online |
US7263873B2 (en) | 2005-03-04 | 2007-09-04 | Robert Charles Richey | System and method for detecting leaks in pressurized piping systems |
JP4793258B2 (ja) * | 2006-12-26 | 2011-10-12 | 株式会社デンソー | 密閉品の製造方法 |
US7886580B2 (en) * | 2007-12-06 | 2011-02-15 | Apv North America, Inc. | Heat exchanger leak testing method and apparatus |
US20110048111A1 (en) * | 2009-08-31 | 2011-03-03 | United Technologies Corporation | Method of leak testing aerospace components |
DE102010005494A1 (de) * | 2009-11-27 | 2011-06-01 | Inficon Gmbh | Verfahren zur Dichtheisprüfung von wasserführenden Komponenten in einem Gehäuse |
CN102667467B (zh) * | 2009-12-22 | 2016-01-20 | Ima生命北美股份有限公司 | 使用对真空泵排气的气体测量来监控冷冻干燥 |
US20110308301A1 (en) * | 2010-06-16 | 2011-12-22 | James Glover | Leak detection system |
CN101975643B (zh) * | 2010-09-01 | 2011-12-28 | 李金山 | 一种罐体试水检漏自动化生产线及方法 |
US9243186B2 (en) | 2012-08-17 | 2016-01-26 | Suncoke Technology And Development Llc. | Coke plant including exhaust gas sharing |
US9359554B2 (en) | 2012-08-17 | 2016-06-07 | Suncoke Technology And Development Llc | Automatic draft control system for coke plants |
CA2896478C (fr) | 2012-12-28 | 2016-06-07 | Suncoke Technology And Development Llc. | Couvercles de colonne de ventilation et systemes et procedes associes |
US10760002B2 (en) | 2012-12-28 | 2020-09-01 | Suncoke Technology And Development Llc | Systems and methods for maintaining a hot car in a coke plant |
CA2896475C (fr) | 2012-12-28 | 2020-03-31 | Suncoke Technology And Development Llc. | Systemes et procedes de suppression du mercure des emissions |
US10883051B2 (en) | 2012-12-28 | 2021-01-05 | Suncoke Technology And Development Llc | Methods and systems for improved coke quenching |
EP2778644A1 (fr) * | 2013-03-11 | 2014-09-17 | Inficon GmbH | Procédé de recherche précise sélective de fuites de gaz de distribution publique |
US9273250B2 (en) | 2013-03-15 | 2016-03-01 | Suncoke Technology And Development Llc. | Methods and systems for improved quench tower design |
CN112251246B (zh) | 2013-12-31 | 2022-05-17 | 太阳焦炭科技和发展有限责任公司 | 用于焦炉脱碳的方法及相关系统和装置 |
WO2016044347A1 (fr) | 2014-09-15 | 2016-03-24 | Suncoke Technology And Development Llc | Fours à coke à composants monolithiques |
KR102531894B1 (ko) | 2015-01-02 | 2023-05-11 | 선코크 테크놀러지 앤드 디벨로프먼트 엘엘씨 | 고급 제어 및 최적화 기술을 이용한 통합형 코크스 플랜트 자동화 및 최적화 |
WO2017117282A1 (fr) | 2015-12-28 | 2017-07-06 | Suncoke Technology And Development Llc | Procédé et système de charge de manière dynamique d'un four à coke |
CH712471A1 (de) * | 2016-05-18 | 2017-11-30 | Joulia Ag | Vorrichtung zur Detektion und Signalisierung eines Lecks und Wärmetauscher. |
JP7109380B2 (ja) | 2016-06-03 | 2022-07-29 | サンコーク テクノロジー アンド ディベロップメント リミテッド ライアビリティ カンパニー | 産業施設において改善措置を自動的に生成する方法およびシステム |
US10113797B2 (en) * | 2016-09-09 | 2018-10-30 | Sp Industries, Inc. | Energy recovery in a freeze-drying system |
UA126400C2 (uk) | 2017-05-23 | 2022-09-28 | Санкоук Текнолоджі Енд Дівелепмент Ллк | Система та спосіб ремонту коксової печі |
CN109341971B (zh) * | 2018-11-13 | 2021-02-05 | 北京宇航系统工程研究所 | 一种低冲击空间对接密封泄漏测试系统 |
CA3125279A1 (fr) | 2018-12-28 | 2020-07-02 | Suncoke Technology And Development Llc | Montees de gaz de four ameliorees |
US11261381B2 (en) | 2018-12-28 | 2022-03-01 | Suncoke Technology And Development Llc | Heat recovery oven foundation |
US11021655B2 (en) | 2018-12-28 | 2021-06-01 | Suncoke Technology And Development Llc | Decarbonization of coke ovens and associated systems and methods |
WO2020140095A1 (fr) | 2018-12-28 | 2020-07-02 | Suncoke Technology And Development Llc | Système et procédé de four de récupération de chaleur à ressort |
BR112021012598B1 (pt) | 2018-12-28 | 2024-01-23 | Suncoke Technology And Development Llc | Método para detectar um vazamento em um sistema para coqueificar carvão, método para detectar um vazamento de ar em um sistema para coqueificar carvão, método para detectar um vazamento de ar em um sistema para coqueificar carvão sob uma pressão negativa e método para detectar um vazamento de ar entre um sistema de alta pressão e um sistema de baixa pressão |
WO2020142391A1 (fr) | 2018-12-31 | 2020-07-09 | Suncoke Technology And Development Llc | Procédés et systèmes pour fournir des surfaces résistantes à la corrosion dans des systèmes de traitement de contaminants |
CA3125585C (fr) | 2018-12-31 | 2023-10-03 | Suncoke Technology And Development Llc | Systemes et procedes ameliores permettant d'utiliser un gaz de combustion |
US11519813B2 (en) * | 2019-08-08 | 2022-12-06 | Advanced Pressure Technology | Method for pressurized leak testing |
US11441968B2 (en) * | 2020-02-28 | 2022-09-13 | Rolls-Royce North American Technologies Inc. | System and method for detecting leaks in a sealed coolant system |
US11767482B2 (en) | 2020-05-03 | 2023-09-26 | Suncoke Technology And Development Llc | High-quality coke products |
US20220065727A1 (en) * | 2020-08-28 | 2022-03-03 | Kla Corporation | Coolant Microleak Sensor for a Vacuum System |
US11946108B2 (en) | 2021-11-04 | 2024-04-02 | Suncoke Technology And Development Llc | Foundry coke products and associated processing methods via cupolas |
CN117120581A (zh) | 2021-11-04 | 2023-11-24 | 太阳焦炭科技和发展有限责任公司 | 铸造焦炭产品以及相关系统、装置和方法 |
SE2250500A1 (en) * | 2022-04-26 | 2023-10-27 | Qtf Sweden Ab | Gas leak detector |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2504530A (en) * | 1946-06-12 | 1950-04-18 | Atomic Energy Commission | Vacuum leak detector method |
DE1835616U (de) * | 1960-02-18 | 1961-07-27 | Siemens Schukkertwerke Ag | Anordnung zur dichtigkeitspruefung von fluessigkeitsleitungen in vakuumanlagen. |
DE1903765U (de) * | 1963-02-23 | 1964-11-05 | Siemens Schukkertwerke Ag | Vorrichtung zur dichtigkeitspruefung von schweissnaehten. |
CH445218A (de) * | 1965-10-05 | 1967-10-15 | Sulzer Ag | Verfahren zur Ortung eines Lecks in einem Wärmeübertrager sowie Vorrichtung zur Ausführung des Verfahrens |
US3939695A (en) * | 1974-02-26 | 1976-02-24 | The United States Of America As Represented By The United States Energy Research And Development Administration | Apparatus for detecting leaks |
DE2511759A1 (de) * | 1975-03-18 | 1976-10-07 | Leybold Heraeus Gmbh & Co Kg | Vakuumlecksuchverfahren an ausgedehnten systemen |
UST955004I4 (en) * | 1976-04-05 | 1977-02-01 | Westinghouse Electric Corporation | Method for heat exchanger leak detection in a liquid metal cooled nuclear reactor |
CH626974A5 (fr) * | 1978-03-21 | 1981-12-15 | Bbc Brown Boveri & Cie | |
JPS556039A (en) * | 1978-06-27 | 1980-01-17 | Sumitomo Electric Ind Ltd | Leack point detection method for burried tubular body |
DE2926112A1 (de) * | 1979-06-28 | 1981-01-08 | Bosch Gmbh Robert | Testleck-sonde |
JPS56126733A (en) * | 1980-03-10 | 1981-10-05 | Nippon Sanso Kk | Detecting method for leakage of helium |
FR2492979A1 (fr) * | 1980-10-24 | 1982-04-30 | Cit Alcatel | Vanne de prelevement de gaz a gamme de pressions etendue |
JPS5782738A (en) * | 1980-11-11 | 1982-05-24 | Toshiba Corp | Testing method for liquid leakage of liquid-tight container |
US4409817A (en) * | 1981-03-25 | 1983-10-18 | Edwards Jr David | Vacuum leak detector and method |
US4524607A (en) * | 1982-04-05 | 1985-06-25 | Science Applications International Corporation | System and method for locating leaking tubes |
US4459844A (en) * | 1982-06-17 | 1984-07-17 | Smith & Denison | Gas separation chamber and portable leak detection system |
JPS593345A (ja) * | 1982-06-30 | 1984-01-10 | Hitachi Ltd | 妨害成分除去用電極を装備した溶存酸素計 |
DE8222870U1 (de) * | 1982-08-13 | 1982-11-25 | Leitenberger, Meß- und Regeltechnik GmbH, 7415 Wannweil | Vorrichtung zum Prüfen der Dichtigkeit von Kühlsystemen od. dgl. |
JPS5984135A (ja) * | 1982-11-08 | 1984-05-15 | Toshiba Corp | 極低温装置の漏洩試験方法 |
JPS6046373A (ja) * | 1983-08-22 | 1985-03-13 | Yanako Keisoku:Kk | 蒸着材料ガス化装置 |
FR2558592A1 (fr) * | 1984-01-19 | 1985-07-26 | Plastiques Agricoles Ste Medit | Procedes et dispositifs pour verifier en continu l'etancheite des tubes extrudes en matiere plastique |
JPS60171448A (ja) * | 1984-02-17 | 1985-09-04 | Hitachi Ltd | 溶存物質の濃度測定装置 |
US4583394A (en) * | 1984-08-07 | 1986-04-22 | Japan Atomic Energy Research Institute | Device and method for leak location |
FR2574545B1 (fr) * | 1984-12-06 | 1987-02-13 | Electricite De France | Procede de detection des fuites dans un echangeur de chaleur en fonctionnement |
JPS6238344A (ja) * | 1985-08-14 | 1987-02-19 | Hitachi Ltd | 不純物センサ |
JPS6318712A (ja) * | 1986-07-10 | 1988-01-26 | Matsushita Electric Ind Co Ltd | 選局装置 |
SU1379661A1 (ru) * | 1986-09-25 | 1988-03-07 | Предприятие П/Я М-5671 | Способ контрол герметичности полых изделий |
-
1988
- 1988-03-15 EP EP89120855A patent/EP0365042A1/fr not_active Withdrawn
- 1988-03-15 DE DE8888104075T patent/DE3870299D1/de not_active Expired - Lifetime
- 1988-03-15 EP EP88104075A patent/EP0285864B1/fr not_active Expired - Lifetime
- 1988-03-29 JP JP63073494A patent/JPS63256833A/ja active Pending
- 1988-03-30 DD DD88314212A patent/DD281232A5/de not_active IP Right Cessation
- 1988-03-31 US US07/175,800 patent/US4918975A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9010175B2 (en) | 2012-01-06 | 2015-04-21 | GM Global Technology Operations LLC | Die coolant system with an integral and automatic leak test |
DE102013200042B4 (de) * | 2012-01-06 | 2017-01-19 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Formwerkzeugkühlsystem |
Also Published As
Publication number | Publication date |
---|---|
EP0285864A1 (fr) | 1988-10-12 |
US4918975A (en) | 1990-04-24 |
JPS63256833A (ja) | 1988-10-24 |
EP0365042A1 (fr) | 1990-04-25 |
EP0285864B1 (fr) | 1992-04-22 |
DE3870299D1 (de) | 1992-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DD281232A5 (de) | Verfahren und vorrichtung zur leckpruefung an mit daempfen und/oder fluessigkeiten gefuellten systemen | |
EP1238253B1 (fr) | Procede pour detecter et localiser des fuites, et dispositif pour mettre en oeuvre ledit procede | |
DE102007036682B3 (de) | Verfahren und Vorrichtung zur Detektion einer Leckage an einem Doppelrohr | |
EP0224692B1 (fr) | Appareil pour le prélèvement d'échantillons sans émission de liquides facilement évaporables | |
DE1573799C3 (de) | Verfahren zur Ortung eines Lecks in einem Wärmeübertrager sowie Vorrichtung zur Ausführung des Verfahrens | |
DE3421533A1 (de) | Gegenstrom-leckdetektor mit kuehlfalle | |
EP0750738B1 (fr) | Dispositif de recherche de fuite sensible a un gaz temoin | |
WO2007118615A2 (fr) | Procédé et dispositif de contrôle des fuites | |
DE102015222213A1 (de) | Druckmessung am Prüfgaseinlass | |
DE2815367A1 (de) | Rohrleckagepruefeinrichtung, insbesondere fuer wasserabscheider-zwischenueberhitzer | |
DE69819493T2 (de) | Verfahren zum prüfen von tanks | |
DE2441124A1 (de) | Lecksucheinrichtung | |
DE2403360A1 (de) | Leckpruefverfahren | |
DE69605122T2 (de) | Verfahren und vorrichtung zur prüfung von gewindeverbindungen und gewindeteilen | |
EP0031048A1 (fr) | Dispositif et procédé pour le stockage d'éléments combustibles irradiés | |
DE2151211A1 (de) | Verfahren und vorrichtung zur dichtheitspruefung von aerosoldosen | |
DE102005008308B4 (de) | Verfahren zur Lecksuche an Leckschutzauskleidungen von Tanks und Behältern o. dgl. | |
DE3011958C2 (de) | Verfahren und Vorrichtung zum Ermitteln von Kühlwasserleckagen für große CO-Mengen enthaltende Einrichtungen | |
DE102016118701B4 (de) | Verfahren zur Prüfung einer unter Druck stehenden Flüssigkeit auf gelöste und/oder mitgeführte Gase | |
EP1240491B1 (fr) | Procede d'exploitation d'un detecteur pelliculaire de fuites et detecteur pelliculaire de fuites correspondant pour mettre ledit procede en oeuvre | |
WO2000022400A1 (fr) | Dispositif de detection integrale de fuites de gaz d'essai et procede d'exploitation approprie | |
EP1544615A1 (fr) | Méthode et appareil pour surveiller le gaz de défaut dans un dispositif à haute tension rempli de liquide | |
DE102019006343A1 (de) | Messkammer und Messstand | |
DE10163615B4 (de) | Verfahren und Vorrichtung zur Detektion von Leckagen in wassergekühlten elektrischen Maschinen | |
DE4228085A1 (de) | Verfahren und Vorrichtung zum Nachweis eines leichten Testgases in einer Flüssigkeit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENJ | Ceased due to non-payment of renewal fee |