456 results about "Turbojet" patented technology

The invention relates to a thrust inverter with grids (5) for a turbojet, that defines at least a portion of the downstream section (103) of a nacelle (100) housing the turbojet, comprising a front frame (105) to be secured to a fixed portion (102) of the nacelle and bearing, on the one side, cylinders (6) for the translational actuation of at least one mobile cowling (2) and, on the other side, grids for inverting the peripheral thrusts, characterised in that the front frame includes a fixed portion for securing the front frame to the fixed portion of the nacelle and bearing the diversion grids, and a portion mounted so as to be capable of translation movement along the longitudinal axis of the nacelle and on which one end of the cowling actuation cylinders is attached, wherein the fixed and mobile portions of the front frame can be removably connected to each other by locking means.

Propulsion from combustion of solid propellant pellet-projectiles for providing a useful propulsion that has the advantages of both solid and liquid propulsion engines, and also can make use of either solid chemical propellants or fissionable nuclear material as the fuel. Preferred methods and systems can include a storage chamber for storing solid propellant pellets, a feeding system having a pellet feeding channel and a pellet feeding mechanism connected to the storage chamber and to a gun assembly, which is positioned along a longitudinal axis to eject the pellets at a certain velocity. A triggering system positioned between gun assembly and thrust chamber can initiate the propellant pellet-projectile, and a thrust chamber having a combustion chamber for combustion of propellant pellet-projectile with an exhaust nozzle. Additionally, an auxiliary power system can be used to power the components and various electrical and electronic systems that may be present in the invention for controlling the engine components. The gun assembly may include an ejector mechanism for ejecting the propellant pellets through at least one barrel. The triggering system can produce a medium creating an ambience for the initiation of propellant pellet-projectiles. Methods and systems can be used for space and rocket crafts, turbojets and ramjets.