Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2005-01-25
2005-01-25
Garber, Charles D. (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
C702S051000
Reexamination Certificate
active
06845652
ABSTRACT:
In a method and a device for leak testing of a vessel, e.g., a tank venting system of a motor vehicle, a leak-tightness measurement is performed by introducing a positive pressure or partial vacuum and detecting the variation over time of a positive pressure or partial vacuum in the vessel, and a reference measurement is performed using a reference leak. A conclusion is drawn as to the presence of a leak in the vessel by comparing the results of the leak-tightness measurement and the reference measurement. To avoid faulty diagnoses, the positive pressure or partial vacuum during the leak-tightness measurement and the reference measurement is detected by using a single pressure measuring device.
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Fritz Thorsten
Hassdenteufel Armin
Stegmann Volk r
Streib Martin
Wiltsch Peter
Garber Charles D.
Kenyon & Kenyon
Robert & Bosch GmbH
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