Filter assembly for fuel supply to actuators and fuel control system of aircraft engine and method
US8647503B2 · kind B2 · utility
0Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter assembly for a fuel delivery system for actuators and fuel control system of an aircraft engine includes a wash flow filter. Fuel flow velocity is increased through the filter through use of a recirculating passage that is effectively achieved through use of an ejector pump. A portion of the pressurized fuel delivered by the main fuel pump is diverted and serves as a motive fluid that scavenges unfiltered flow from downstream of the filter and recirculates or discharges the recirculated flow to an inlet of the filter. This provides increased velocity to maintain sufficient washing of the filter openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.