Patent ID: 6536217
Filing Date: 2003-03-25
Classification: F02C,F05D

Abstract:
A liquid fuel reverse purge control system for purging a turbine fuel manifold on shutdown of a turbine, the system comprising:a reversible fuel pump for pressurizing fuel from a fuel supply; a fuel manifold in fluidic connection with the reversible fuel pump; at least one solenoid-controlled shutoff valve located in fluidic connection between the reversible fuel pump and the fuel manifold; and an electronic control unit and associated software logic, which electronic control unit is in electronic contact with the reversible fuel pump and the at least one solenoid-controlled shutoff valve, so that on system shutdown the electronic control unit and associated software logic commands the reversible fuel pump to reverse the direction of pumping for a set period of time to purge residual fuel from the fuel manifold, and after such set period of time commands the at least one solenoid-controlled shutoff valve to close.