Injection manifold with tesla valves for rotating detonation engines
AssigneePurdue Research Foundation
InventorsQili Liu, Li Qiao
Life of this patent
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Abstract
A rotating detonation engine (RDE) is disclosed which includes a housing, an injector assembly disposed within the housing, the injector assembly includes a fuel manifold, an oxidizer manifold, and a combustion chamber, fuel from the fuel manifold and an oxidizer from the oxidizer manifold are combined and combusted in the combustion chamber, each of the fuel and oxidizer manifolds communicates with the combustion chamber via a plurality of Tesla valves each via a corresponding port, wherein the plurality of Tesla valves substantially eliminate reverse flow of exhaust gases from the combustion chamber back to the fuel manifold or the oxidizer manifold.
Claims18
A rotating detonation engine (RDE), comprising:
- a housing,
- an injector assembly disposed within the housing, the injector assembly, comprising
- a fuel manifold,
- an oxidizer manifold, and
- a combustion chamber, wherein fuel from the fuel manifold and an oxidizer from the oxidizer manifold are combined and combusted in the combustion chamber, and
- wherein each of the fuel and oxidizer manifolds communicates with the combustion chamber via a plurality of dedicated radially disposed Tesla valves around the combustion chamber each via a corresponding port with only one Tesla valve between the fuel manifold and the corresponding port on the combustion chamber and with only one Tesla valve between the oxidizer manifold and the corresponding port on the combustion chamber, wherein the plurality of Tesla valves substantially eliminate reverse flow of exhaust gases from the combustion chamber back to the fuel manifold or the oxidizer manifold.
A reverse flow prevention arrangement, consisting of:
- a first chamber;
- a second chamber;
- and
- a plurality of dedicated Tesla valves disposed between the first chamber and the second chamber each terminating at a port radially disposed around the second chamber, each dedicated Tesla valve having an inlet coupled to the first chamber and an outlet coupled to the second chamber via its corresponding port without any moving parts such that forward flow from the first chamber to the second chamber is allowed by the plurality of Tesla valves but reverse flow is prevented from the second chamber to the first chamber.
Dependencies are inferred from the claim text.