Method and device for performing a leak test on a gas generator
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United States of America Patent
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Issued Date -
Aug 19, 2004
app pub date -
Feb 14, 2003
filing date -
Feb 14, 2003
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for performing a leak test on a gas generator (1), especially for airbags, according to which: the gas generator (1) is filled with a pressurized gas mixture, among other things, helium; the gas generator (1) filled with the gas mixture is introduced into a test chamber (2); gas is evacuated from the test chamber (2); the amount of helium exiting from a possibly present leak is determined with the aid of a sensor, and; the signal furnished by the sensor is used for determining the tightness/leakage of the gas generator (1). In order to accomplish the goal of performing a cost-effective search for leaks, the invention provides that the gas generator (1) is filled with a gas mixture whose helium proportion is equal to at least 50%.
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