FR2894022A1 - Electrical energy producing and storing device for e.g. automatic repeating firearm, has wire-wound piston retreating within pressure chamber under effect of combustion gas to create electric current that is stored in battery - Google Patents

Abstract

The device has a wire-wound piston (5) resetting a firearm using the pressure of combustion gas provided from a barrel (1) through an orifice (2) and a conduit (3), where the gas is evacuated through a flash hole (13). The piston retreats within a pressure chamber (4) under the effect of the gas for creating ,by electromagnetic induction, an electric current which is stored in a low power battery (10). The piston acts as a rotor and the chamber acts as a stator.

Description

DESCRIPTION

  The present invention relates to a device for use; for electricity generation and storage purposes; a portion of the combustion gases of the powder when firing with a hand-held firearm (variant No. 1) and when firing with an automatic or semi-automatic weapon (variant No. 2).

  At the moment, firearms and shooters themselves are using more and more electricity. 1_soit for the internal operation of the weapon: -Perms retained or electro-powered magnet (for a dry start and faster shot). - Electric fire (or electronic) by arc or electrical contact for special primer ammunition (cartridges without cases for example). 2_either for the operation of devices mounted on the weapon: -light shotgun reticle, infrared vision. red dot viewers, laser sights, holosight type sights. 3-for the operation of devices carried by the shooter: -night-vision devices, laser rangefinders mounted on tactical helmets. - devices of radio links, GPS etc .... Or the electric energy used is in most cases provided by batteries and batteries which can be defective at the crucial moment by: - lack of spare parts. - delicate storage (sensitivity to humidity, weight, volume on difficult terrain and far from logistic centers).

  The device of the invention overcomes these disadvantages by using the pressure of the gas to provide electrical energy for the purpose of a better autonomy in the field.

  VARIANT N 1: (manual repetition or tilting weapon)

  Diagram No. 1 attached and an embodiment of the invention without limitation.

  It comprises in fact according to a first characteristic: an electric generator (5) whose rotor shaft is driven by a mini finned turbine (4) which rotates under the effect of the pressure of the gases coming from the barrel (1) at the start of the stroke.These gases passing first through the orifice (2) and then through the tube (3) and out through the vent (11).

  The second characteristic is a low power battery (8) charged by the generator (5) and whose load is limited by a switch (6) (load limiter) acting on the circuit (7) between the generator (5) and the battery (8).

  The third feature is an internal use circuit (9) associated with a parallel-mounted plug socket (10) for use externally.

  Operation: At the start of the stroke between the moment the ball (or the load of sinkers + wad) exceeds the orifice (2) and the moment of its exit from the barrel (1), the pressure of the order of 500 bar allows a part of the gases to rotate the mini turbine (4) which drives the rotor of the electric generator (5). This provides an electrical current which is stored in the battery (8). Through the internal electrical circuit (9) it is possible to feed the weapon or associated accessories. Through the plug of the external circuit (10) can be connected a cord that will power devices worn and used by the shooter.

  VARIANT N 2: (automatic or semi-automatic weapon)

  The goal is the same as for variant n 1 except that here we will use the maximum mechanism dedicated to the automatic or semi-automatic repetition of the weapon: piston (5) and pressure chamber (4).

  Diagram No. 2 attached and an embodiment of the invention without limitation.

  1511 comprises in fact according to a first characteristic: a wound piston (5) in such a way that it behaves like a rotor (by electromagnetic effect) during its translation under the effect of the pressure of the gases (coming from the barrel (1 ) by the orifice (2) and the duct (3)). The gases evacuating through the vent (13).

  The second feature is a pressure chamber (4) whose walls are wound in such a way that it behaves like a stator with respect to the piston (5).

  The third feature is a low power battery (10) associated with a circuit (8) and a load limiter (9).

  The fourth feature is an internal use circuit (11) with a parallel-mounted plug socket (12) for external use.

  Operation: When the stroke starts, the gases act on the piston (5) which moves back into the pressure chamber (4) creating, by electromagnetic induction, an electric current (the gases evacuating through the vent (13)) . This current is stored in the battery (10) for use by the weapon or its accessories 30 by the internal circuit (11) or by devices used and worn by the shooter through the plug socket (12) (circuit external).

  NB: the main function of the wound piston (5) and the wound pressure chamber (4) remains the conventional rearming of the weapon: action on the rod (6) and thus on the cylinder head (7).

Claims (7)

  1) Device for producing and storing electrical energy from the action of the gases resulting from the combustion of the powder in hand-held or rocking firearms, characterized in that it comprises an electric generator ( 5) driven by the gas pressure by means of a mini finned turbine (4), the gases from the barrel (1) through an orifice (2) and a tube (3) and evacuated by a vent (11). ).   2) Device according to claim 1 characterized in that it comprises a low power battery (8) charged by the electric generator (5) and associated with a load limiter (6) located on the circuit (7).   3) Device according to claim 1 or claim 2 characterized in that it comprises an internal use circuit (9) associated with a plug socket (10) connected in parallel for use externally. VARIANT 2 (DRAWING 2)   4) Device for producing and storing electrical energy from the action of the gases resulting from the combustion of the powder in automatic or semi-automatic repetition firearms, characterized in that it comprises a wound piston (5) which acts (by electromagnetism) the role of rotor in addition to its mechanical role of rearming the weapon by the pressure of the gases from the barrel (1) through an orifice (2) and a duct (3) and venting through a vent (13).   5) Device according to claim 4 characterized in that it comprises a wound pressure chamber (4) which plays (electromagnetism) the role of stator relative to the wound piston (5) in addition to its role of rearming the armed.   6) Device according to claim 4 or claim 5 characterized in that it comprises a battery (10) associated with a circuit (8) and a load limiter (9).   7) Device according to any one of the claims characterized in that it comprises an internal use circuit (11) associated with a plug socket mounted in parallel for use externally (12).