Igniter
AssigneeROLLS-ROYCE plc
InventorsBasile Vigneron, Richard J. Tunstall
Life of this patent
Estimating the term…
Abstract
An igniter arranged to ignite combustion in a primary flow including a fuel and air mixture, the igniter including one or more geometric features arranged to: induce a shockwave flow structure at least partially disposed in the primary flow; and ignite the fuel and air mixture by virtue of the shockwave flow structure. The present disclosure also relates to a method of igniting combustion in a primary flow including a fuel and air mixture, the method including: providing one or more geometric features arranged to induce a shockwave flow structure; inducing the shockwave flow structure at least partially in the primary flow; and igniting the fuel and air mixture by virtue of the shockwave flow structure.
Claims16
An igniter arranged to ignite combustion in a primary flow including a fuel and air mixture, the igniter comprising:
- one or more geometric features including a convergent-divergent nozzle, the one or more geometric features being arranged to:
- induce a shockwave flow structure at least partially disposed in the primary flow;
- and
- ignite the fuel and air mixture based on a presence of the shockwave flow structure,
- wherein:
- (i) the convergent-divergent nozzle is configured to provide a secondary flow through the convergent-divergent nozzle to the primary flow, (ii) in use, the secondary flow through the convergent-divergent nozzle is separate from the primary flow, and (iii) the shockwave structure resides at least partially in the primary flow.
A method of igniting combustion in a primary flow including a fuel and air mixture, the method comprising:
- providing one or more geometric features including a convergent-divergent nozzle, the one or more geometric features being arranged to induce a shockwave flow structure;
- providing a secondary flow through the convergent-divergent nozzle, the secondary flow through the convergent-divergent nozzle being separate from the primary flow;
- mixing the secondary flow with the primary flow;
- inducing the shockwave flow structure at least partially in the primary flow;
- and
- igniting the fuel and air mixture based on a presence of the shockwave flow structure.
Dependencies are inferred from the claim text.