Method and apparatus for testing of tank integrity of vehicle fuel systems
US5369984A · kind A · utility
25Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/3263
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for testing vehicle fuel tank integrity determines the free space in the system by pressurizing the system with a known quantity of gas. The loss in pressure over a test period is then monitored. These data are used to calculate the size of the leak. Alternatively, the free volume is compared to a reference volume and a normalized leak rate computed for comparison to reference values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.