Liquid fuel reverse purge
US6536217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Dec 20, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/602
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Devices and methods for liquid fuel reverse purge on shutdown of turbines are provided. The device and method may utilize a liquid fuel reverse purge control system that includes an induction motor associated with a pump, together with fuel system solenoid valves, an electronic control unit and associated software logic. The device and method may alternative utilize a liquid fuel valve manifold including an assembly for mechanical reverse purging of liquid fuel from the atomizer fuel manifold and supply lines thereto, optionally together with an assembly for controlling the flow of the reverse-purged fuel through a re-circulation circuit used to preheat fuel prior to system start-up under cold conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.