发明名称 |
Method and device for diagnosing tank leaks using a reference measuring method |
摘要 |
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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申请公布号 |
US2003015022(A1) |
申请公布日期 |
2003.01.23 |
申请号 |
US20020178459 |
申请日期 |
2002.06.24 |
申请人 |
STEGMANN VOLKER;FRITZ THORSTEN;STREIB MARTIN;WILTSCH PETER;HASSDENTEUFEL ARMIN |
发明人 |
STEGMANN VOLKER;FRITZ THORSTEN;STREIB MARTIN;WILTSCH PETER;HASSDENTEUFEL ARMIN |
分类号 |
G01M3/26;G01M3/02;G01M3/32;(IPC1-7):G01M3/02 |
主分类号 |
G01M3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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