Patent ID: 8739549

Claim:
A system, comprising: a solid fuel injector, comprising: a solid fuel passage disposed axially with respect to the solid fuel injector and configured to inject a solid fuel through a fuel outlet in a fuel direction; and a first gas passage configured to inject a first gas through a first gas outlet in a first gas direction, wherein the first gas direction is oriented at a first angle relative to the fuel direction; a second gas passage configured to inject a second gas through a second gas outlet in a second gas direction, wherein the second gas direction is oriented at a second angle relative to the fuel direction, and the first and second angles are different from one another, wherein the first gas passage is disposed concentrically surrounding the solid fuel passage, and the second gas passage is disposed concentrically surrounding the first gas passage; a fuel pump fluidly coupled to the solid fuel passage and communicatively coupled to a controller, wherein the fuel pump is configured to direct the solid fuel into the solid fuel passage; a first valve fluidly coupled to the first gas passage and communicatively coupled to the controller, wherein the first valve is configured to adjust a first flow of the first gas through the first passage; and a second valve fluidly coupled to the second gas passage and communicatively coupled to the controller, wherein the second valve is configured to adjust a second flow of the second gas through the second passage; and the controller configured to inject the solid fuel axially with respect to the solid fuel injector by actuating the fuel pump, inject the first gas concentrically about the solid fuel passage to impact the solid fuel by actuating the first valve, and inject the second gas concentrically about the first gas passage to impact the first gas, the solid fuel, or a combination thereof, by actuating the second valve.