Integrated fuel injector igniters configured to inject multiple fuels and/or coolants and associated methods of use and manufacture

摘要

Embodiments of injectors configured for adaptively injecting multiple different fuels and coolants into a combustion chamber, and for igniting the different fuels, are disclosed herein. An injector according to one embodiment includes a body having a first end portion and a second end portion. The injector further includes a first flow channel extending through the body, and a second flow channel extending through the body that is separate from the first flow channel and electrically isolated from the first flow channel. The first flow channel is configured to receive a first fuel, and the second flow channel is configured to receive at least one of a second fuel and a coolant. The injector further comprises a valve carried by the body that is movable between a closed position and an open position to introduce at least one of the second fuel and the coolant into a combustion chamber.

主权项

1. An injector comprising:
an injector body including—
a base portion configured to receive a first fuel and at least one of a second fuel and a coolant into the body; anda nozzle portion coupled to the base portion, wherein the nozzle portion is configured to be positioned proximate to a combustion chamber for injecting the first fuel and at least one of the second fuel and the coolant into the combustion chamber; a valve seal positioned at or proximate to the nozzle portion; an ignition rod extending from the base portion to the nozzle portion; a valve coaxially disposed over at least a portion of the ignition rod, wherein the valve includes a sealing head and moves between an open position in which the sealing head is spaced apart from the valve seal, and a closed position in which the sealing head at least partially contacts the valve seal; a first flow channel extending longitudinally through a center portion of the ignition rod, wherein the first flow channel is configured to deliver the first fuel to the nozzle portion; a second flow channel fluidly separated from the first flow channel and extending longitudinally through the body and disposed radially outward from the valve and the first flow channel, wherein the second flow channel is configured to deliver at least one of the second fuel and the coolant to the nozzle portion when the valve is in the open position; a first coupling fluidly coupled to the first flow channel to deliver the first fuel to the first flow channel; and a second coupling fluidly coupled to the second flow channel to deliver at least one of the second fuel and the coolant to the second flow channel.