DE10306245A1 - Leak test apparatus, e.g. in automotive climate control systems, whereby a flushing gas arrangement is used to ensure that there is no background concentration of test gas in the testing area - Google Patents
Leak test apparatus, e.g. in automotive climate control systems, whereby a flushing gas arrangement is used to ensure that there is no background concentration of test gas in the testing area Download PDFInfo
- Publication number
- DE10306245A1 DE10306245A1 DE10306245A DE10306245A DE10306245A1 DE 10306245 A1 DE10306245 A1 DE 10306245A1 DE 10306245 A DE10306245 A DE 10306245A DE 10306245 A DE10306245 A DE 10306245A DE 10306245 A1 DE10306245 A1 DE 10306245A1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- housing
- leak
- test
- sniffer probe
- 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.)
- Withdrawn
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000011010 flushing procedure Methods 0.000 title 1
- 239000000523 sample Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000011156 evaluation Methods 0.000 claims abstract description 5
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 53
- 238000010926 purge Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 238000001310 location test Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erkennung bzw. Bewertung von Lecks eines nachzuweisenden Leckgases unter Verwendung eines Lecksuchgerätes, das eine auf das Leckgas reagierende Schnüffelsonde aufweist.The invention relates to a method and a device for detecting or evaluating leaks Leakage gas to be detected using a leak detector, the has a sniffer probe reacting to the leak gas.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Erkennung bzw. Bewertung von Lecks eines nachzuweisenden Leckgases derart auszubilden, dass Untergrundkonzentrationen der Umgebung ausgesperrt werden, so dass selbst kleinste Konzentrationen oder Leckraten ermittelt werden können.The invention is based on the object Procedure for the detection or evaluation of leaks of a detected Form leak gas in such a way that underground concentrations of the environment be locked out so that even the smallest concentrations or Leakage rates can be determined.
Eine erste Variante des erfindungsgemäßen Verfahrens weist die Merkmale des Patentanspruchs 1 auf. Hiernach wird bei einer an einem Funktionsort installierten Klimaanlage ein offenes Prüfvolumen mit einem von dem Leckgas freien Gasstrom beschickt. Die Messung mit der Schnüffelsonde erfolgt am Aufstellungsort der installierten Klimaanlage an dem aus dem Messvolumen austretenden Gasstrom. Ein derartiges Verfahren erfordert keine Umschließung des Messvolumens. Es wird auch als "Frischgasdusche" bezeichnet. Um die zu untersuchende Stelle herum wird eine Gasspülung erzeugt. Vorzugsweise ist das Spülgas leichter als Luft, so dass es das Volumen von unten nach oben durchströmt. Oberhalb des Prüfvolumens kann dann mit einer Schnüffelsonde ermittelt werden, ob sich Leckgas in dem Gasstrom befindet. Dabei kann auch zugleich der Ort des Austretens von Leckgas lokalisiert werden. Diese Art der Lecksuche ist außerordentlich einfach und benötigt keine aufwendige Apparatur. Zweckmäßigerweise wird reine Luft oder Stickstoff für die Gasspülung benutzt, so dass Personen durch den Gasstrom nicht gefährdet werden.A first variant of the method according to the invention has the features of claim 1. After that, at an open air conditioning system installed at a functional location Test volume charged with a gas stream free of the leak gas. The measurement with the sniffer probe takes place at the installation site of the installed air conditioning system on the gas flow emerging from the measuring volume. Such a process does not require an enclosure of the measurement volume. It is also known as a "fresh gas shower". To the one to be examined There is a gas purge around generated. The purge gas is preferably lighter than air so that it flows through the volume from bottom to top. Above of the test volume can then be determined with a sniffer probe whether there is a leak gas in the gas stream. It can also at the same time the location of leakage gas leakage can be localized. This type of leak detection is extraordinary easy and doesn't need any complex equipment. Expediently pure air or nitrogen for the gas purge used so that people are not endangered by the gas flow.
Eine zweite Variante des erfindungsgemäßen Verfahrens sieht vor, dass am Funktionsort um die Messstelle herum ein Gehäuse angeordnet wird, das ein Prüfvolumen gegen die Umgebung abgrenzt. Dies ermöglicht die Leckerkennung am Funktionsort des Aggregates. Es ist also nicht erforderlich, das Aggregat in der Fabrik zu überprüfen oder, falls es bereits installiert ist, zu demontieren und in eine Messkammer zu überführen.A second variant of the method according to the invention provides for a housing to be arranged around the measuring point at the functional location that is a test volume delimited from the environment. This enables the leak detection on Function location of the unit. So it is not necessary that Check the unit in the factory or, if it is already installed, dismantle it and place it in a measuring chamber to convict.
Dadurch, dass an der Messstelle ein Gehäuse angeordnet wird, in dem die Messung erfolgt, kann das Aggregat am Einsatzort im installierten Zustand geprüft werden. Hierbei gibt es zwei Varianten. Bei der ersten Variante ist das Gehäuse zangenartig aufklappbar, so dass es vorübergehend an dem Aggregat, das am Funktionsort installiert ist, angebracht werden kann. Bei der zweiten Variante ist mindestens ein Teil des Gehäuses am Funktionsort des Aggregates fest installiert. Bei der zweiten Variante ist die Umgebung des zu prüfenden Aggregates als ein Teil des Gehäuses oder als gesamtes Gehäuse ausgebildet und somit für eine Leckgasprüfung vorbereitet. Dies ist oftmals dann zweckmäßig, wenn das Aggregat in der Nähe einer Wand oder anderer Komponenten derart angeordnet ist, dass für ein vorübergehend anzubringendes Gehäuse kein Platz besteht.The fact that at the measuring point casing is arranged, in which the measurement takes place, the unit on Check the place of use in the installed state. Here there is two options. In the first variant, the housing is pliers-like hinged so that it is temporary be attached to the unit that is installed at the functional location can. In the second variant, at least part of the housing is on Functional location of the unit permanently installed. In the second variant is the environment of the test item Aggregates as part of the housing or as an entire housing trained and thus for a leak test prepared. This is often useful when the unit in the Close to one Wall or other components are arranged so that for a temporary housing to be attached there is no space.
Das erfindungsgemäße Verfahren kann derart durchgeführt werden, dass das Ansammeln von Leckgas in dem Gehäuse durch Konzentrationsmessung festgestellt wird. Im Falle einer Klimaanlage sammelt sich austretendes Kältemittel im Prüfvolumen. Dabei werden Untergrundkonzentrationen aus der Umgebung durch die Umgrenzung des Prüfvolumens ausgesperrt. Die Leckgaskonzentration kann selbstverständlich bei kleinsten Leckraten – abhängig von der Wartezeit – gemessen werden.The method according to the invention can be carried out in such a way that the leakage gas accumulation in the housing by concentration measurement is detected. In the case of air conditioning, leaking accumulates refrigerant in the test volume. In doing so, underground concentrations from the environment are determined by the Delimitation of the test volume locked out. The leakage gas concentration can of course be smallest leak rates - depending on the waiting time - measured become.
Eine zweite Alternative sieht vor, dass aus dem Gehäuse das Gas abgesaugt wird und dass anschließend im Gehäuse eine Leckratenmessung erfolgt. Zunächst wird aus dem Prüfvolumen Gas abgesaugt, wodurch ein Unterdruck entsteht. Nach einiger Zeit wird nur noch austretendes Leckgas gemessen, da die Umgebungsgase ferngehalten werden. Das Absaugen erfolgt vorzugsweise durch die Schnüffelsonde hindurch.A second alternative provides that from the housing the gas is drawn off and then a leak rate measurement is carried out in the housing. First becomes from the test volume Aspirated gas, which creates a negative pressure. After some time only leaking gas is measured as the ambient gases be kept away. The suction is preferably carried out by the sniffer probe therethrough.
Die Erfindung betrifft ferner eine Vorrichtung zur Erkennung bzw. Bewertung von Lecks eines nachzuweisenden Leckgases. Die Vorrichtung weist ein Gehäuse zur Bildung einer gasdichten Umschließung eines Prüfvolumens und eine an dem Gehäuse montierte Schnüffelsonde auf. Der Saugstutzen der Schnüffelsonde ragt in das Gehäuseinnere hinein. Die Schnüffelsonde kann permanent an dem Gehäuse angebracht sein, wobei sie auch zum Absaugen geeignet ist und an eine Saugquelle angeschlossen werden kann, oder sie kann abnehmbar in eine entsprechende Ausnehmung des Gehäuses eingesetzt werden.The invention further relates to a Device for the detection or evaluation of leaks of a detected Leak gas. The device has a housing for forming a gas-tight enclosure a test volume and one mounted on the case sniffer probe on. The suction nozzle of the sniffer probe protrudes into the interior of the housing into it. The sniffer probe can permanently on the housing be attached, it is also suitable for suction and on a suction source can be connected, or it can be removable be inserted into a corresponding recess in the housing.
Im Falle eines zangenartig aufklappbaren Gehäuses kann das Gehäuse vorübergehend an einem Aggregat angebracht werden, dessen Umgebung hinreichend Freiraum aufweist. Das Gehäuse ermöglicht die einfache Anbringung am Funktionsort des zu prüfenden Aggregates.In the case of a case that can be opened like a pliers the housing temporarily be attached to a unit, the surroundings of which are sufficient Has free space. The housing enables that easy installation at the functional location of the unit to be tested.
Bei der zweiten Alternative ist mindestens ein Teil des Gehäuses an dem zu prüfenden Aggregat fest installiert. Dies bedeutet, dass die Umgebung des Aggregates zur abdichtenden Umschließung des Aggregates dauerhaft vorbereitet ist. Der Funktionsort ist also mit einer entsprechenden Vorrüstung versehen.The second alternative is at least one Part of the housing on the test item Fixed unit installed. This means that the environment of the Unit for the permanent sealing of the unit is prepared. The function location is therefore with a corresponding one Provision Mistake.
Im folgenden werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen näher erläutert.In the following, embodiments of the Invention explained with reference to the drawings.
Es zeigen:Show it:
In
Der Gasstrom
Bei dem Ausführungsbeispiel von
Die Gehäusehälften
Die Schnüffelsonde
Das Ausführungsbeispiel von
Claims (11)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10306245A DE10306245A1 (en) | 2003-02-14 | 2003-02-14 | Leak test apparatus, e.g. in automotive climate control systems, whereby a flushing gas arrangement is used to ensure that there is no background concentration of test gas in the testing area |
KR1020057014950A KR20050098930A (en) | 2003-02-14 | 2004-01-08 | Method and device for recognizing leaks |
EP04700690A EP1599713A2 (en) | 2003-02-14 | 2004-01-08 | Method and device for recognizing leaks |
CNA2004800040681A CN1748134A (en) | 2003-02-14 | 2004-01-08 | Method and device for recognizing leaks |
PCT/EP2004/000062 WO2004072601A2 (en) | 2003-02-14 | 2004-01-08 | Method and device for recognizing leaks |
MXPA05007774A MXPA05007774A (en) | 2003-02-14 | 2004-01-08 | Method and device for recognizing leaks. |
JP2006501537A JP2006517658A (en) | 2003-02-14 | 2004-01-08 | Method and apparatus for recognizing leaks |
BRPI0407500-5A BRPI0407500A (en) | 2003-02-14 | 2004-01-08 | leak detection process and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10306245A DE10306245A1 (en) | 2003-02-14 | 2003-02-14 | Leak test apparatus, e.g. in automotive climate control systems, whereby a flushing gas arrangement is used to ensure that there is no background concentration of test gas in the testing area |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10306245A1 true DE10306245A1 (en) | 2004-08-26 |
Family
ID=32747857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10306245A Withdrawn DE10306245A1 (en) | 2003-02-14 | 2003-02-14 | Leak test apparatus, e.g. in automotive climate control systems, whereby a flushing gas arrangement is used to ensure that there is no background concentration of test gas in the testing area |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1599713A2 (en) |
JP (1) | JP2006517658A (en) |
KR (1) | KR20050098930A (en) |
CN (1) | CN1748134A (en) |
BR (1) | BRPI0407500A (en) |
DE (1) | DE10306245A1 (en) |
MX (1) | MXPA05007774A (en) |
WO (1) | WO2004072601A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005007609A1 (en) * | 2005-02-18 | 2006-08-31 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gas supply device for cold leak testing at vacuum device, has housing, attachable on vacuum device`s welded joint to be tested for creating gas space, having inlet and outlet for supply and removal of gases into and from space, respectively |
DE102006016747A1 (en) * | 2006-04-10 | 2007-10-18 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Method and device for leak testing |
DE102008037300A1 (en) | 2008-08-11 | 2010-02-25 | Robert Brockmann | Production of a clean gas, in particular for the leak test on a pressurized component |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006028778A1 (en) * | 2006-06-23 | 2007-12-27 | Inficon Gmbh | Leak Detector |
JP5198946B2 (en) * | 2008-06-20 | 2013-05-15 | ニチアス株式会社 | Thermal insulation material, thermal insulation structure and moisture leakage detection method of thermal insulation structure |
KR101353906B1 (en) * | 2011-08-05 | 2014-01-22 | 김학성 | Presure sensing apparatus for gas case |
CN102889966B (en) * | 2012-09-28 | 2015-06-24 | 西安电力高等专科学校 | Auxiliary tool for pressure container detection and detection method using auxiliary tool |
KR101349313B1 (en) * | 2013-01-10 | 2014-01-16 | 주식회사 사람들 | Joint member for vacuum pipe capable of sensing leak |
FR3110968B1 (en) * | 2020-05-29 | 2022-07-29 | Grtgaz | Gas leak sampling device with high flow rate |
Citations (8)
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DE2009197A1 (en) * | 1970-02-27 | 1971-09-09 | Volkswagenwerk Ag | Gas leak testing device |
US3837228A (en) * | 1973-04-09 | 1974-09-24 | Vacuum Inst Corp | Tracer gas-permeable probe for leak detectors |
US4282743A (en) * | 1979-09-18 | 1981-08-11 | The United States Of America As Represented By The United States Department Of Energy | Leak test fitting |
US4557139A (en) * | 1984-07-31 | 1985-12-10 | Loomis International Inc. | Leak detection method and apparatus |
US5563335A (en) * | 1995-02-28 | 1996-10-08 | Gas Research Institute | High flow rate sampler for measuring emissions at process components |
US20020073767A1 (en) * | 1999-09-28 | 2002-06-20 | Michael Webb | Method for measuring chemical emissions |
DE10207972A1 (en) * | 2001-02-26 | 2002-10-10 | Frape Behr Sa | Detector comprises two gas sources, inlet lines forming connection between sources with inlet, gas detector, outlet line forming connection between outlet and gas detector, and analyzer |
JP2003035622A (en) * | 2001-07-19 | 2003-02-07 | Yamaha Fine Technologies Co Ltd | Apparatus for inspecting leakage of work, chamber for leakage-inspecting apparatus and method for inspecting leakage |
Family Cites Families (10)
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US3949596A (en) * | 1974-12-11 | 1976-04-13 | The United States Of America As Represented By The United States Energy Research And Development Administration | Leak test fixture and method for using same |
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US5309752A (en) * | 1992-07-17 | 1994-05-10 | Praxair Technology, Inc. | Leakage measurement into a gas-charged collapsible container |
US5330720A (en) * | 1993-02-23 | 1994-07-19 | Hughes Aircraft Company | System for detecting fugitive emissions |
US5520003A (en) * | 1994-12-01 | 1996-05-28 | Cornfield; Lloyd | Leak container and method |
US5553483A (en) * | 1995-08-15 | 1996-09-10 | Pilot Industries, Inc. | Leak detection system |
DE19813432A1 (en) * | 1998-03-27 | 1999-09-30 | Michael Stetter | Gas leak detection apparatus for testing of components, such as automobile radiators and oil-coolers |
US6196056B1 (en) * | 1998-04-15 | 2001-03-06 | Vacuum Instrument Corp. | System for determining integrity of a gas-sealed compartment |
-
2003
- 2003-02-14 DE DE10306245A patent/DE10306245A1/en not_active Withdrawn
-
2004
- 2004-01-08 MX MXPA05007774A patent/MXPA05007774A/en unknown
- 2004-01-08 WO PCT/EP2004/000062 patent/WO2004072601A2/en not_active Application Discontinuation
- 2004-01-08 BR BRPI0407500-5A patent/BRPI0407500A/en not_active Application Discontinuation
- 2004-01-08 KR KR1020057014950A patent/KR20050098930A/en not_active Application Discontinuation
- 2004-01-08 JP JP2006501537A patent/JP2006517658A/en active Pending
- 2004-01-08 EP EP04700690A patent/EP1599713A2/en not_active Withdrawn
- 2004-01-08 CN CNA2004800040681A patent/CN1748134A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2009197A1 (en) * | 1970-02-27 | 1971-09-09 | Volkswagenwerk Ag | Gas leak testing device |
US3837228A (en) * | 1973-04-09 | 1974-09-24 | Vacuum Inst Corp | Tracer gas-permeable probe for leak detectors |
US4282743A (en) * | 1979-09-18 | 1981-08-11 | The United States Of America As Represented By The United States Department Of Energy | Leak test fitting |
US4557139A (en) * | 1984-07-31 | 1985-12-10 | Loomis International Inc. | Leak detection method and apparatus |
US5563335A (en) * | 1995-02-28 | 1996-10-08 | Gas Research Institute | High flow rate sampler for measuring emissions at process components |
US20020073767A1 (en) * | 1999-09-28 | 2002-06-20 | Michael Webb | Method for measuring chemical emissions |
DE10207972A1 (en) * | 2001-02-26 | 2002-10-10 | Frape Behr Sa | Detector comprises two gas sources, inlet lines forming connection between sources with inlet, gas detector, outlet line forming connection between outlet and gas detector, and analyzer |
JP2003035622A (en) * | 2001-07-19 | 2003-02-07 | Yamaha Fine Technologies Co Ltd | Apparatus for inspecting leakage of work, chamber for leakage-inspecting apparatus and method for inspecting leakage |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005007609A1 (en) * | 2005-02-18 | 2006-08-31 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Gas supply device for cold leak testing at vacuum device, has housing, attachable on vacuum device`s welded joint to be tested for creating gas space, having inlet and outlet for supply and removal of gases into and from space, respectively |
DE102006016747A1 (en) * | 2006-04-10 | 2007-10-18 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Method and device for leak testing |
WO2007118615A2 (en) * | 2006-04-10 | 2007-10-25 | Robert Brockmann | Method and apparatus for the detection of leaks |
WO2007118615A3 (en) * | 2006-04-10 | 2008-01-31 | Robert Brockmann | Method and apparatus for the detection of leaks |
US8074492B2 (en) | 2006-04-10 | 2011-12-13 | Robert Brockmann | Method and apparatus for the detection of leaks |
DE102008037300A1 (en) | 2008-08-11 | 2010-02-25 | Robert Brockmann | Production of a clean gas, in particular for the leak test on a pressurized component |
US8661847B2 (en) | 2008-08-11 | 2014-03-04 | Robert Brockmann | Production of a clean gas, in particular for testing a pressurized construction component for leaks |
Also Published As
Publication number | Publication date |
---|---|
JP2006517658A (en) | 2006-07-27 |
MXPA05007774A (en) | 2005-09-30 |
EP1599713A2 (en) | 2005-11-30 |
BRPI0407500A (en) | 2006-02-14 |
KR20050098930A (en) | 2005-10-12 |
WO2004072601A2 (en) | 2004-08-26 |
WO2004072601A3 (en) | 2005-09-22 |
CN1748134A (en) | 2006-03-15 |
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