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US 2021/0047985 A1Published application
Selectable mode ramjet/rocket jet engine
Assignee8801541 Canada Inc.
InventorsLuc Laforest, Timothy S. Rupcich
Life of this patent
Estimating the term…
Abstract
The jet engine comprising a ramjet air path extending from an intake, into a combustion chamber, and out an exhaust nozzle, a fuel inlet leading into the combustion chamber, an oxidizer inlet leading into the combustion chamber and a partition being operable to selectively close the ramjet air path upstream of the combustion chamber to allow operation of the jet engine in rocket mode and open the ramjet air path to allow operation of the jet engine in ramjet mode.
Claims15
A jet engine comprising:
- a ramjet air path extending from an intake, into a combustion chamber, and out an exhaust nozzle;
- a fuel inlet leading into the combustion chamber;
- an oxidizer inlet leading into the combustion chamber;
- and
- a partition being operable to selectively close the ramjet air path upstream of the combustion chamber to allow operation of the jet engine in rocket mode, and to selectively open the ramjet air path to allow operation of the jet engine in ramjet mode.
2 more elements
A method of operating a jet engine, comprising:
- providing a ramjet air path extending from an intake, into a combustion chamber, and out an exhaust nozzle;
- providing a fuel Inlet leading into the combustion chamber;
- providing an oxidizer inlet leading into the combustion chamber;
- providing a partition being operable to selectively close the ramjet air path upstream of the combustion chamber to allow operation of the jet engine in rocket mode, and to selectively open the ramjet air path to allow operation of the jet engine in ramjet mode;
- operating the jet engine in a ramjet mode including supplying fuel through the fuel inlet and maintaining the partition open;
- and
- operating the jet engine in a rocket mode by supplying fuel through the fuel inlet and oxidizer through the oxidizer inlet and maintaining the partition closed,
- wherein the step of operating the jot engine in the rocket mode is performed after the step of operating the jet engine in the ramjet mode.
5 more elements
Dependencies are inferred from the claim text.