Fuel flowmeter
US6796173B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1999 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fuel flowmeter has a flowmeter with rotating impellers with meshed lobes rotatable in partially cylindrical housings joined in a case having an inlet at one side and an outlet at an opposite side. Fuel moves in the inlet filling voids between lobes in both impellers and moves cylindrically around opposite partially cylindrical walls and turning the impellers until reaching the outlet. Flow conditioners in the inlet and outlet allows smooth flow, reducing turbulence and promoting lamellar flow into and out of the case. One of the rotors may have a magnetic marker. A transmitter with a Hall effect sensor is mounted on the case. A signal conditioning software is connected to the Hall effect sensor for adjusted transmitted information according to measured pulse rate and a standard flow. The transmitter has a temperature sensor, and a second signal conditioning software connected to the temperature sensor for adjusting transmitted flow rate signals according to a difference between sensed temperature and standard temperature. A signal cable is provided, and a junction box is connected to the signal cable. A flow computer is connected to the junction box for indicating fuel consumptio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.