An engine including a means for supplying fuel to the combustion chamber of the fire tube, that includes a variable-volume transfer chamber for receiving fuel, a fuel transfer means from the tank of the engine towards the transfer chamber, and injection means for injecting fuel into the combustion c
An engine including a means for supplying fuel to the combustion chamber of the fire tube, that includes a variable-volume transfer chamber for receiving fuel, a fuel transfer means from the tank of the engine towards the transfer chamber, and injection means for injecting fuel into the combustion chamber from the transfer chamber. The engine further includes an elastic return at least partially defined by the fuel contained in the transfer chamber.
대표청구항▼
1. A pulsed detonation engine operating with a fuel-air detonating mixture and comprising: at least one flame tube with a mobile transversal bottom, so as to be able to occupy a first and a second limit position, and closed by a transversal support being opposite to said mobile transversal bottom; a
1. A pulsed detonation engine operating with a fuel-air detonating mixture and comprising: at least one flame tube with a mobile transversal bottom, so as to be able to occupy a first and a second limit position, and closed by a transversal support being opposite to said mobile transversal bottom; an elastic return acting on said mobile transversal bottom and being able to propel the mobile transversal bottom from the first limit position to the second limit position and to slow the mobile transversal bottom down at an end of travel from the second limit position to the first limit position;at least one fuel tank; anda fuel supplying assembly for supplying fuel to a pulsed detonation combustion chamber of said flame tube;wherein said fuel supplying assembly comprises: a transfer chamber being variable in volume, bounded by a side wall of said flame tube, by said mobile transversal bottom and by said transversal support and adapted to receive fuel from said fuel tank;a fuel transferring assembly being able to transfer fuel from said tank to said transfer chamber; anda fuel injecting assembly adapted to inject fuel into said pulsed detonation combustion chamber from said transfer chamber;and in that said elastic return comprise fuel contained in said transfer chamber;wherein said fuel tank being arranged at the rear of said transversal support coaxially to said flame tube, said transversal support comprises said fuel transferring assembly. 2. An engine according to claim 1, wherein said elastic return further comprise at least one auxiliary compression spring being able to help propelling said mobile transversal bottom from the first position to the second one and slowing down the mobile transversal bottom at the end of the travel from the second position to the first one. 3. An engine according to claim 1, wherein said fuel transferring assembly comprises at least one pressure reducer comprising nozzles. 4. An engine according to claim 1, wherein said fuel transferring assembly comprises at least one venturi effect carburetor. 5. An engine according to claim 1, wherein at least one intake port being arranged in the side wall of said flame tube: said mobile transversal bottom, sliding between the first limit position and the second limit position, has the shape of a piston with a transversal wall oriented to said pulsed detonation combustion chamber and a side skirt cooperating with the side wall of said flame tube; andwherein a ring is integral with the transversal wall of said piston and cooperates with the side wall of said flame tube so as to plug said intake port in the second limit position of said mobile transversal bottom. 6. An engine according to claim 5, wherein: said fuel injecting assembly comprises at least in one injector provided on the side wall of said flame tube and a first hole of which opens at a level of said intake port;at least one injection port is arranged in the side wall of said flame tube, said injection port cooperating with a second hole of said fuel injector;and the side skirt of said piston comprises at least one injection window, being able to cooperate with said injection port, upon travel of said mobile transversal bottom from the first limit position to the second limit position, so as to enable fuel injection into said pulsed detonation combustion chamber from the transfer chamber. 7. An engine according to claim 5, wherein said fuel injecting assembly comprises at least one check valve with a spring, housed in the transversal wall of said piston, enabling fuel injection into said pulsed detonation combustion chamber upon the travel of said mobile transversal bottom from the second limit position to the first limit position. 8. An engine according to claim 1, comprising a temporary blocking assembly adapted to block said mobile transversal bottom when the mobile transversal bottom is in the first limit position. 9. A pulsed detonation engine operating with a fuel-air detonating mixture and comprising: at least one flame tube with a mobile transversal bottom, so as to be able to occupy a first and a second limit position, and closed by a transversal support being opposite to said mobile transversal bottom;an elastic return acting on said mobile transversal bottom and being able to propel the mobile transversal bottom from the first limit position to the second limit position and to slow the mobile transversal bottom down at an end of travel from the second limit position to the first limit position;at least one fuel tank; anda fuel supplying assembly for supplying fuel to a pulsed detonation combustion chamber of said flame tube; wherein said fuel supplying assembly comprises: a transfer chamber being variable in volume, bounded by a side wall of said flame tube, by said mobile transversal bottom and by said transversal support and adapted to receive fuel from said fuel tank;a fuel transferring assembly being able to transfer fuel from said fuel tank to said transfer chamber; anda fuel injecting assembly adapted to inject fuel into said pulsed detonation combustion chamber from said transfer chamber;and in that said elastic return comprises fuel contained in said transfer chamber;wherein at least one intake port being arranged in the side wall of said flame tube: said mobile transversal bottom, sliding between the first limit position and the second limit position, has the shape of a piston with a transversal wall oriented to said pulsed detonation combustion chamber and a side skirt cooperating with the side wall of said flame tube; andwherein a ring is integral with the transversal wall of said piston and cooperates with the side wall of said flame tube so as to plug said intake port in the second limit position of said mobile transversal bottom. 10. An engine according to claim 9, wherein said elastic return further comprise at least one auxiliary compression spring being able to help propelling said mobile transversal bottom from the first limit position to the second limit position and slowing down the mobile transversal bottom at the end of travel from the second limit position to the first limit position. 11. An engine according to claim 9, wherein said fuel transferring assembly comprises at least one pressure reducer comprising nozzles. 12. An engine according to claim 9, wherein said fuel transferring assembly comprises at least one venturi effect carburetor. 13. An engine according to claim 9, wherein: said fuel injecting assembly comprises at least in one injector provided on the side wall of said flame tube and a first hole of which opens at the level of said intake port;at least one injection port is arranged in the side wall of said flame tube, said injection port cooperating with a second hole of said fuel injector;and the side skirt of said piston comprises at least one injection window, being able to cooperate with said injection port, upon the travel of said mobile transversal bottom from the first limit position to the second limit position, so as to enable fuel injection into said pulsed detonation combustion chamber from the transfer chamber. 14. An engine according to claim 9, wherein said fuel injecting assembly comprises at least one check valve with a spring, housed in the transversal wall of said piston, enabling fuel injection into said pulsed detonation combustion chamber upon the travel of said mobile transversal bottom from the second limit position to the first limit position. 15. An engine according to claim 9, comprising a temporary blocking assembly adapted to block said mobile transversal bottom when said mobile transversal bottom is in the first limit position.
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