Turboramjet engine
OwnerPradeep DASSinventor
Life of this patent
Estimating the term…
Abstract
A turboramjet has a housing with an intake and an exhaust. The housing houses a heat exchanger, a turbojet section and a ramjet section downstream of the turbojet section. The heat exchanger has an air path and a coolant path. The air path is configured to receive air from the air intake. The heat exchanger has a first section made from a first material and a second section made from a second material, the second material having a lower melting point and a lower density relative to the first material. A bypass air passage selectively bypasses the turbojet section to supply air to the ramjet section, and the coolant path uses fuel as a coolant and is configured to supply the fuel to the turbojet section.
Claims13
A turboramjet engine, comprising:
- a housing having an air intake and an exhaust, wherein the housing houses:
- a heat exchanger having an air path and a coolant path, the air path configured to receive air from the air intake, the heat exchanger having a first section made from a first material and a second section made from a second material, the second material having a lower melting point and a lower density relative to the first material;
- a turbojet section configured to receive air from the air path of the heat exchanger;
- a ramjet section downstream from the turbojet section;
- a bypass air passage that selectively bypasses the turbojet section to supply air to the ramjet section;
- and
- wherein the coolant path uses fuel as a coolant and is configured to supply the fuel to the turbojet section.
A method of using a turboramjet engine, the method comprising:
- using a heat exchanger, cooling air and warming a cryogenic fuel, the heat exchanger comprising an air path and a coolant path, the air being cooled in the air path, the heat exchanger having a first section made from a first material and a second section made from a second material, the second material having a lower melting point and a lower density relative to the first material;
- and
- mixing and combusting the cooled air and the warmed cryogenic fuel in a turbojet section, a ramjet section, or both the turbojet section and ramjet section of the turboramjet engine.
Dependencies are inferred from the claim text.