Patent ID: 8820295

Claim:
A fuel injector comprising: an injector body defining a liquid fuel inlet, a gaseous fuel inlet and a nozzle outlet; a needle control valve disposed within a cavity formed in the injector body, the needle control valve including a proximal end and a distal end, the distal end being disposed adjacent to the nozzle outlet, the distal end including a valve seat for releasably engaging the closing surface and for releasably sealing the nozzle outlet; a liquid fuel control valve disposed within the injector body and providing selective communication between the liquid fuel inlet and a first liquid fuel passage; a liquid fuel check valve disposed within the injector body, the liquid fuel check valve in selective communication with the liquid fuel inlet and the liquid fuel control valve via the first liquid fuel passage that extends from the liquid fuel control valve through the injector body and to the liquid fuel check valve and the liquid fuel check valve in selective communication with the cavity via a second liquid fuel passage that extends from the liquid fuel check valve through the injector body to the cavity; an actuator for moving the liquid fuel check valve between an open position where the liquid fuel check valve provides communication between the liquid fuel inlet and the cavity and a closed position where the liquid fuel check valve isolates the liquid fuel inlet from the cavity; the gaseous fuel inlet in communication with the cavity.