Method and apparatus for determining the volume of fuel in a vehicle fuel tank
US7621178B2 · kind B2 · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jul 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining the volume of fuel in a vehicle fuel tank comprising the steps of determining the volume of vapor/air in the fuel tank and calculating the volume of fuel in the tank based upon the determined volume of vapor/air. The volume of vapor/air is determined by the steps of closing the fuel tank, pumping air into or out of the closed volume of the fuel tank and measuring the change in pressure in the fuel tank as a function of time during said pumping to determine the volume of vapor/air in the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.