US20240199509A1 - Propellant for a projectile - Google Patents
Propellant for a projectile Download PDFInfo
- Publication number
- US20240199509A1 US20240199509A1 US18/681,900 US202118681900A US2024199509A1 US 20240199509 A1 US20240199509 A1 US 20240199509A1 US 202118681900 A US202118681900 A US 202118681900A US 2024199509 A1 US2024199509 A1 US 2024199509A1
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- US
- United States
- Prior art keywords
- explosive
- liquid
- container
- projectile
- ammunition round
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003380 propellant Substances 0.000 title claims abstract description 24
- 239000002360 explosive Substances 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000004880 explosion Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 3
- 238000005474 detonation Methods 0.000 claims description 2
- 239000004450 Cordite Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000003721 gunpowder Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
- C06B47/14—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
- C06B25/24—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with nitroglycerine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
- F42B1/02—Shaped or hollow charges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/38—Range-increasing arrangements
- F42B10/42—Streamlined projectiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/16—Cartridges, i.e. cases with charge and missile characterised by composition or physical dimensions or form of propellant charge, with or without projectile, or powder
Definitions
- the present invention relates to an ammunition round with a propellant and a method for propulsion of ammunition rounds and projectiles, including shells and bullets.
- FIG. 1 A typical ammunition round 10 is shown in FIG. 1 and includes a bullet or shell 12 and a casing 14 .
- FIG. 2 shows a longitudinal cross-section in which the bullet 12 sits on top of the casing.
- the casing is hollow and is filled with cordite or gunpowder 16 which is ignited by ignition switch 18 to fire the gun and launch the round.
- the round is typically placed in the barrel of a gun.
- the present embodiments may replace the cordite with the combination of an explosive charge and a fluid.
- the explosive may be conventional cordite or gunpowder or may be high explosive, and the high explosive may be a shaped charge, the shape for additional effect in focusing the directionality of the explosion.
- the liquid may for example be water. The liquid can be compressed by the explosion and then evaporate to amplify the effect of the explosion in propelling the projectile from the gun. It is believed that a focused explosion with suitably shaped high explosive will not produce greater wear on the barrel than a standard cordite explosion and may even do less damage to the barrel because of the focusing of the explosion, which is not possible with cordite, allowing the weapon to remain accurate and serviceable for a longer period of time.
- an ammunition round comprising a head, a casing and a propellant, the propellant comprising an explosive and a liquid.
- the explosive is a high explosive charge.
- the high explosive charge is a shaped charge.
- the explosive round and the liquid are contained in respective first and second compartments within the casing.
- the first and second compartments are located one in front of the other along the axis of the casing.
- Embodiments may comprise a divider between said first and second compartments.
- said divider has a center and a circumference and is shaped to extend towards a base of said round at said center and towards a tip of said round at said circumference, thereby to accommodate a shaped charge in said first compartment.
- Embodiments may comprise a baffle along said divider between said first and second compartments.
- the liquid is water.
- the head has a base towards the propellant, the base having a convex shape.
- the head has a base towards the propellant, the base having a concave shape.
- the head has a base towards the propellant, the base having a flat shape.
- An aspect of the present invention relates to a gun with the ammunition round described herein.
- a further aspect of the present invention relates to a method of firing a gun to launch a projectile, the method comprising:
- the method may comprise shaping the explosive charge to focus the explosion axially along a casing of the projectile.
- the method may comprise placing a baffle between the explosive charge and the liquid to compress the liquid over an extent of a surface.
- the method may comprise shaping a base of the head of the projectile into a concave shape to amplify an explosive force, or shaping a base of the head of the projectile into a convex shape to moderate an explosive force.
- an ammunition round comprising a head and a casing, the casing having two chambers for a propellant.
- one of said chambers contains explosive and a second of said chambers comprises a fluid.
- the round may have a base and a tip and an axial direction between said base and said tip, and the one of said chambers containing said explosive is located towards said base in said axial direction and said second of said chambers is axially adjacent said first of said chambers towards said tip.
- a gun containing an ammunition round, a container of explosive and a container of liquid.
- the container of liquid is located between said ammunition round and said container of explosive.
- the container of liquid is located is located between said container of explosive and a rear of said gun.
- the container of liquid comprises a jacket around said container of explosive.
- the container of liquid comprises a jacket around said container of explosive, said jacket extending over one or both ends of said container of explosive.
- said container of explosive is shaped to focus explosive energy.
- FIG. 1 is simplified diagram showing a bullet as known in the prior art
- FIG. 2 is a longitudinal cross-section of the bullet of FIG. 1 ;
- FIG. 3 is a longitudinal cross-sectional diagram showing an ammunition round according to an embodiment of the present invention.
- FIG. 4 is a view of the longitudinal cross-sectional view of FIG. 3 wherein the propellant chambers are filled with high explosive and fluid;
- FIG. 5 is an exploded diagram showing parts of the ammunition round of FIG. 3 .
- the present invention relates to an ammunition round.
- the ammunition round is provided with a two-part propellant.
- the two-part propellant may be provided within two compartments in the casing.
- One of the parts of the propellant is a fluid, for example a liquid and for example water.
- the other part is an explosive, such as high explosive and for example a shaped charge.
- the explosive is detonated into the liquid and compresses the liquid and also superheats it to form high pressure steam.
- the continuing force of the explosive is then amplified by the expansion force of the steam, and the propellant thus makes use of both the thermal and kinetic energy of the explosion to provide kinetic energy for launch of the round. Expansion of the steam may in fact serve to cool the barrel.
- FIGS. 1 and 2 show a round of ammunition according to the existing art and have been discussed in the background.
- FIGS. 3 and 4 illustrates a round of ammunition 30 according to embodiments of the present invention.
- the round 30 comprises a bullet 32 fixed to a casing 34 .
- the casing 34 is hollow as before but the hollow is made of two compartments, an upper compartment 36 which is filled with fluid 44 and a lower compartment 38 that comprises an explosive charge 46 .
- the fluid may be a liquid or a gas, and the liquid may be water, including demineralized water and reduced mineral water, and alcohol, or water with additives, and the explosive may be a high explosive.
- a detonating pin 40 may detonate the charge.
- FIG. 4 shows the two propellant compartments filled with fluid and explosive respectively.
- the high explosive is shaped and the divider wall between the explosive and liquid chambers is indicated by reference numeral 42 .
- the shape is such as to provide a central hollow to support focusing of the explosion.
- the focused explosion spreads axially up the shell and into the liquid containing compartment.
- the liquid may serve to amplify the detonation, for example by being compressed or by evaporating or both.
- FIG. 5 is a simplified exploded diagram showing the separate parts of the round 30 according to various embodiments of the present invention.
- the interior of the shell 34 is made up of two compartments.
- the two compartments 36 and 38 may be a single structure with a divider 42 in between. Alternatively they may be two separate capsules.
- a baffle 50 may be placed in between the two compartments. The baffle may serve as a plunger that is launched by the high explosive into the liquid and provides a solid front to the liquid, causing compression and then adding additional spring force to launch the bullet.
- the bullet itself may be shaped to manage or compound the launch force of the explosion.
- Bullet 32 . 1 has a concave shape.
- Bullet 32 . 2 has a convex shape and bullet 32 . 3 has a flat shape.
- the propellant is not necessarily built into a casing but rather shells and propellants may be placed separately into the barrels.
- a shaped charge or a sack of cordite or gunpowder or the like may be placed in the barrel along with a container of fluid.
- the liquid container may be adjacent the projectile. Additionally or alternatively a liquid container may also be provided behind the explosive in the gun barrel.
- the water may usefully be demineralized, so as not to leave mineral deposits lining the gun barrel.
- the liquid may alternatively be an alcohol, which has a lower density than water but also a lower boiling point.
- the liquid may be both water and alcohol, each being kept in a separate container or in a separate chamber in a casing.
- the liquid may be kept in a container made of a material that is waterproof but evaporates with the heat of the explosion so as not to leave traces on the barrel.
- any other liquid may be used, especially those liquids whose molecular merits allow it to dissolve in water.
- the liquids may have additives which influence the mechanical or thermal properties of the liquids.
- the liquid may also be placed in longitudinal containers alongside the explosive in the barrel.
- the present embodiments may be applied to those types of ammunition known in the art where the casing is degradable on firing.
- the same construction may be used in conventional casing type ammunition.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
An ammunition round comprises a projectile, and a propellant, the propellant comprising both an explosive and a liquid. The explosive and liquid may be provided in two containers in a gun barrel or in two compartments in a casing.
Description
- This application claims the benefit of priority of Israel Patent Application No. 278275 filed on 25 Oct. 2020, the contents of which are incorporated herein by reference in their entirety.
- The present invention relates to an ammunition round with a propellant and a method for propulsion of ammunition rounds and projectiles, including shells and bullets.
- A
typical ammunition round 10 is shown inFIG. 1 and includes a bullet orshell 12 and acasing 14.FIG. 2 shows a longitudinal cross-section in which thebullet 12 sits on top of the casing. The casing is hollow and is filled with cordite orgunpowder 16 which is ignited byignition switch 18 to fire the gun and launch the round. The round is typically placed in the barrel of a gun. - The ability of the cordite or gunpowder to launch the projectile is sufficient for most purposes but is limited, and a more powerful launch system is sought.
- The present embodiments may replace the cordite with the combination of an explosive charge and a fluid. The explosive may be conventional cordite or gunpowder or may be high explosive, and the high explosive may be a shaped charge, the shape for additional effect in focusing the directionality of the explosion. The liquid may for example be water. The liquid can be compressed by the explosion and then evaporate to amplify the effect of the explosion in propelling the projectile from the gun. It is believed that a focused explosion with suitably shaped high explosive will not produce greater wear on the barrel than a standard cordite explosion and may even do less damage to the barrel because of the focusing of the explosion, which is not possible with cordite, allowing the weapon to remain accurate and serviceable for a longer period of time.
- According to an aspect of some embodiments of the present invention there is provided an ammunition round comprising a head, a casing and a propellant, the propellant comprising an explosive and a liquid.
- In an embodiment, the explosive is a high explosive charge.
- In an embodiment, the high explosive charge is a shaped charge.
- In an embodiment, the explosive round and the liquid are contained in respective first and second compartments within the casing.
- In an embodiment, the first and second compartments are located one in front of the other along the axis of the casing.
- Embodiments, may comprise a divider between said first and second compartments.
- In an embodiment, said divider has a center and a circumference and is shaped to extend towards a base of said round at said center and towards a tip of said round at said circumference, thereby to accommodate a shaped charge in said first compartment.
- Embodiments may comprise a baffle along said divider between said first and second compartments.
- In an embodiment, the liquid is water.
- In an embodiment, the head has a base towards the propellant, the base having a convex shape.
- In an embodiment, the head has a base towards the propellant, the base having a concave shape.
- In an embodiment, the head has a base towards the propellant, the base having a flat shape.
- An aspect of the present invention relates to a gun with the ammunition round described herein.
- A further aspect of the present invention relates to a method of firing a gun to launch a projectile, the method comprising:
-
- detonating an explosive charge;
- launching the explosive charge into a liquid;
- launching the liquid into a head of the projectile to launch the projectile.
- The method may comprise shaping the explosive charge to focus the explosion axially along a casing of the projectile.
- The method may comprise placing a baffle between the explosive charge and the liquid to compress the liquid over an extent of a surface.
- The method may comprise shaping a base of the head of the projectile into a concave shape to amplify an explosive force, or shaping a base of the head of the projectile into a convex shape to moderate an explosive force.
- According to a further aspect of the present invention there is provided an ammunition round comprising a head and a casing, the casing having two chambers for a propellant.
- In an embodiment, one of said chambers contains explosive and a second of said chambers comprises a fluid.
- The round may have a base and a tip and an axial direction between said base and said tip, and the one of said chambers containing said explosive is located towards said base in said axial direction and said second of said chambers is axially adjacent said first of said chambers towards said tip.
- According to a third aspect of the present invention there is provided a gun containing an ammunition round, a container of explosive and a container of liquid.
- In an embodiment, the container of liquid is located between said ammunition round and said container of explosive.
- In an embodiment, the container of liquid is located is located between said container of explosive and a rear of said gun.
- In an embodiment, the container of liquid comprises a jacket around said container of explosive.
- In an embodiment, the container of liquid comprises a jacket around said container of explosive, said jacket extending over one or both ends of said container of explosive.
- In an embodiment, said container of explosive is shaped to focus explosive energy.
- Unless otherwise defined, all technical and/or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention pertains. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments of the invention, exemplary methods and/or materials are described below. In case of conflict, the patent specification, including definitions, will control. In addition, the materials, methods, and examples are illustrative only and are not intended to be necessarily limiting.
- Some embodiments of the invention are herein described, by way of example only, with reference to the accompanying drawings. With specific reference now to the drawings in detail, it is stressed that the particulars shown are by way of example and for purposes of illustrative discussion of embodiments of the invention. In this regard, the description taken with the drawings makes apparent to those skilled in the art how embodiments of the invention may be practiced.
- In the drawings:
-
FIG. 1 is simplified diagram showing a bullet as known in the prior art; -
FIG. 2 is a longitudinal cross-section of the bullet ofFIG. 1 ; -
FIG. 3 is a longitudinal cross-sectional diagram showing an ammunition round according to an embodiment of the present invention; -
FIG. 4 is a view of the longitudinal cross-sectional view ofFIG. 3 wherein the propellant chambers are filled with high explosive and fluid; and -
FIG. 5 is an exploded diagram showing parts of the ammunition round ofFIG. 3 . - The present invention relates to an ammunition round.
- The ammunition round is provided with a two-part propellant. In conventional ammunition that comes in a casing, the two-part propellant may be provided within two compartments in the casing. One of the parts of the propellant is a fluid, for example a liquid and for example water. The other part is an explosive, such as high explosive and for example a shaped charge. The explosive is detonated into the liquid and compresses the liquid and also superheats it to form high pressure steam. The continuing force of the explosive is then amplified by the expansion force of the steam, and the propellant thus makes use of both the thermal and kinetic energy of the explosion to provide kinetic energy for launch of the round. Expansion of the steam may in fact serve to cool the barrel.
- Before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not necessarily limited in its application to the details of construction and the arrangement of the components and/or methods set forth in the following description and/or illustrated in the drawings and/or the Examples. The invention is capable of other embodiments or of being practiced or carried out in various ways.
- Referring now to the drawings,
FIGS. 1 and 2 show a round of ammunition according to the existing art and have been discussed in the background. -
FIGS. 3 and 4 illustrates a round ofammunition 30 according to embodiments of the present invention. As shown inFIG. 3 , theround 30 comprises abullet 32 fixed to acasing 34. Thecasing 34 is hollow as before but the hollow is made of two compartments, anupper compartment 36 which is filled withfluid 44 and alower compartment 38 that comprises anexplosive charge 46. The fluid may be a liquid or a gas, and the liquid may be water, including demineralized water and reduced mineral water, and alcohol, or water with additives, and the explosive may be a high explosive. A detonatingpin 40 may detonate the charge.FIG. 4 shows the two propellant compartments filled with fluid and explosive respectively. - In the example shown, the high explosive is shaped and the divider wall between the explosive and liquid chambers is indicated by
reference numeral 42. As defined by the wall the shape is such as to provide a central hollow to support focusing of the explosion. The focused explosion spreads axially up the shell and into the liquid containing compartment. The liquid may serve to amplify the detonation, for example by being compressed or by evaporating or both. - Reference is now made to
FIG. 5 , which is a simplified exploded diagram showing the separate parts of theround 30 according to various embodiments of the present invention. As discussed, the interior of theshell 34 is made up of two compartments. As shown inFIG. 5 , the twocompartments divider 42 in between. Alternatively they may be two separate capsules. In one embodiment abaffle 50 may be placed in between the two compartments. The baffle may serve as a plunger that is launched by the high explosive into the liquid and provides a solid front to the liquid, causing compression and then adding additional spring force to launch the bullet. - The bullet itself may be shaped to manage or compound the launch force of the explosion. Bullet 32.1 has a concave shape. Bullet 32.2 has a convex shape and bullet 32.3 has a flat shape.
- In the case of large artillery pieces, the propellant is not necessarily built into a casing but rather shells and propellants may be placed separately into the barrels. In such a case a shaped charge or a sack of cordite or gunpowder or the like may be placed in the barrel along with a container of fluid.
- The liquid container may be adjacent the projectile. Additionally or alternatively a liquid container may also be provided behind the explosive in the gun barrel.
- In the case that the liquid is water, the water may usefully be demineralized, so as not to leave mineral deposits lining the gun barrel.
- The liquid may alternatively be an alcohol, which has a lower density than water but also a lower boiling point.
- The liquid may be both water and alcohol, each being kept in a separate container or in a separate chamber in a casing.
- The liquid may be kept in a container made of a material that is waterproof but evaporates with the heat of the explosion so as not to leave traces on the barrel.
- As well as alcohol, any other liquid may be used, especially those liquids whose molecular merits allow it to dissolve in water. The liquids may have additives which influence the mechanical or thermal properties of the liquids.
- The liquid may also be placed in longitudinal containers alongside the explosive in the barrel.
- The present embodiments may be applied to those types of ammunition known in the art where the casing is degradable on firing.
- The same construction may be used in conventional casing type ammunition.
- As used herein the terms “comprises”, “comprising”. “includes”, “including”, “having” and their conjugates mean “including but not limited to”.
- The term “consisting of” means “including and limited to”.
- As used herein, the singular form “a”, “an” and “the” include plural references unless the context clearly dictates otherwise.
- It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment, and the text is to be construed as if such a single embodiment is explicitly written out in detail. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the invention, and the text is to be construed as if such separate embodiments or sub combinations are explicitly set forth herein in detail.
- Although the invention has been described in conjunction with specific embodiments thereof it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, it is intended to embrace all such alternatives, modifications and variations that fall within the spirit and broad scope of the appended claims.
- All publications, patents and patent applications mentioned in this specification are herein incorporated in their entirety by reference into the specification, to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated herein by reference. In addition, citation or identification of any reference in this application shall not be construed as an admission that such reference is available as prior art to the present invention. To the extent that section headings are used, they should not be construed as necessarily limiting.
- In addition, any priority document(s) of this application is/are hereby incorporated herein by reference in its/their entirety.
Claims (27)
1. An ammunition round comprising a projectile and a propellant, the propellant comprising an explosive and a liquid.
2. The ammunition round of claim 1 , wherein the explosive is a high explosive charge.
3. The ammunition round of claim 1 , wherein the high explosive charge is a shaped charge.
4. The ammunition round of claim 1 , wherein the explosive charge and the liquid are contained in respective first and second compartments within a casing.
5. The ammunition round of claim 4 , wherein the first and second compartments are located one in front of the other along the axis of the casing.
6. The ammunition round of claim 5 , comprising a divider between said first and second compartments.
7. The ammunition round of claim 6 , wherein said divider has a center and a circumference and is shaped to extend towards a base of said round at said center and towards a tip of said round at said circumference, thereby to accommodate a shaped charge in said first compartment.
8. The ammunition round of claim 6 comprising a baffle along said divider between said first and second compartments.
9. The ammunition round of claim 1 , wherein the liquid is one member of the group comprising water, demineralized water and alcohol.
10. The ammunition round of claim 1 , wherein the projectile has a base towards the propellant, the base having a convex shape.
11. The ammunition round of claim 1 , wherein the projectile has a base towards the propellant, the base having a concave shape or a flat shape.
12-13. (canceled)
14. A method of firing a gun to launch a projectile, the method comprising: detonating an explosive charge;
directing a blast of the detonation into a liquid;
launching the liquid into the projectile to launch the projectile.
15. The method of claim 14 , comprising shaping the explosive charge to focus the explosion axially along a casing of the projectile.
16. The method of claim 14 , comprising placing a baffle between the explosive charge and the liquid to compress the liquid over an extent of a surface.
17. The method of claim 14 , comprising shaping a base of the head of the projectile into a concave shape to amplify an explosive force.
18. The method of claim 14 , comprising shaping a base of the head of the projectile into a convex shape to moderate an explosive force.
19. An ammunition round comprising a projectile and a casing, the casing having at least two chambers for a propellant.
20. The ammunition round of claim 19 , wherein one of said chambers contains explosive and a second of said chambers comprises a fluid.
21. The ammunition round of claim 20 , having a base and a tip and an axial direction between said base and said tip, and wherein the one of said chambers containing said explosive is located towards said base in said axial direction and said second of said chambers is axially adjacent said first of said chambers towards said tip.
22. A gun containing an ammunition round comprising a projectile and a casing, the casing having at least two chambers for a propellant.
23. The gun of claim 22 , wherein said at least two chambers comprise a container of explosive and a container of liquid.
24. The gun of claim 23 , wherein the container of liquid is located between said ammunition round and said container of explosive, or wherein the container of liquid is located is located between said container of explosive and a rear of said gun.
25. (canceled)
26. The gun of claim 23 , wherein the container of liquid comprises a jacket around said container of explosive, or wherein said container of explosive is shaped to focus explosive energy.
27. The gun of claim 23 , wherein the container of liquid comprises a jacket around said container of explosive, said jacket extending over one or both ends of said container of explosive.
28. (canceled)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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IL27827520 | 2020-10-25 | ||
IL278275 | 2020-10-25 | ||
PCT/IL2021/051261 WO2022085011A1 (en) | 2020-10-25 | 2021-10-25 | Propellant for a projectile |
Publications (1)
Publication Number | Publication Date |
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US20240199509A1 true US20240199509A1 (en) | 2024-06-20 |
Family
ID=81290194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/681,900 Pending US20240199509A1 (en) | 2020-10-25 | 2021-10-25 | Propellant for a projectile |
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US (1) | US20240199509A1 (en) |
CA (1) | CA3223749A1 (en) |
WO (1) | WO2022085011A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR538388A (en) * | 1920-01-16 | 1922-06-08 | Use of liquefied gases in firearms | |
US2960031A (en) * | 1952-09-12 | 1960-11-15 | Giles D Clift | Liquid projectile propellant for military ammunition |
US4376406A (en) * | 1981-03-02 | 1983-03-15 | The United States Of America As Represented By The Secretary Of The Navy | Hybrid gun system |
US4461214A (en) * | 1982-06-24 | 1984-07-24 | The United States Of America As Represented By The Secretary Of The Navy | Cartridge loaded hybrid propellant |
DE4128575A1 (en) * | 1990-08-31 | 1992-03-05 | Fraunhofer Ges Forschung | Gun for firing high-velocity projectile - has primary chamber for powder propellant and second chamber for liq. propellant |
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2021
- 2021-10-25 CA CA3223749A patent/CA3223749A1/en active Pending
- 2021-10-25 US US18/681,900 patent/US20240199509A1/en active Pending
- 2021-10-25 WO PCT/IL2021/051261 patent/WO2022085011A1/en active Application Filing
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CA3223749A1 (en) | 2022-04-28 |
WO2022085011A1 (en) | 2022-04-28 |
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