Patent ID: 7874310

Claim:
A combination distributor purge valve unit for a turbine engine, comprising: a fuel section having a fuel inlet; a purge air section having an air inlet; a distributor section disposed between the fuel section and the purge air section and having a plurality of outlets; a spool movable along a spool axis from a first position in which the plurality of outlets are in communication with the air inlet and closed off from the fuel inlet to a second position in which the plurality of outlets are in communication with the fuel inlet and closed off from the air inlet; and a water cooling circuit in communication with a coolant supply port and a coolant return port defined at the exterior of the valve, the water cooling circuit having passageways within at least one of the fuel, purge air, and distributor sections and in contact with an internal component of the valve within an interior defined by the at least one fuel, purge air and distributor sections for carrying coolant that is isolated from the fuel and the purge air to receive and carry away heat from the internal component.