Kinetic energy control system and method based on chamber pressure adjustment

By adopting a kinetic energy control system based on chamber pressure adjustment in the riot gun, combined with the multi-drug chamber graded ignition and compensation mechanism of external gas cylinders, the traditional riot gun has solved the shortcomings in initial velocity control, non-lethality and safety control, the impact of chamber pressure fluctuations on performance, adaptability and shooting accuracy, and achieve higher shooting accuracy, stability and multi-scene adaptability.

CN120043395APending Publication Date: 2025-05-27ZHONGBEI UNIV
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Patent Information

Application Number
CN202510182667.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2025-05-27

AI Technical Summary

Technical Problem

Traditional riot guns have shortcomings in initial velocity control, non-lethality and safety control, the impact of chamber pressure fluctuations on performance, adaptability and shooting accuracy, and it is difficult to meet the needs of different scenarios and targets.

Method used

The kinetic energy control system based on chamber pressure adjustment is adopted to dynamically and accurately control the initial velocity of the projectile through the chamber pressure adjustment system, and combine the multi-pharmacy chamber graded ignition and compensation mechanism of external gas cylinders to achieve stable control of chamber pressure.

Benefits of technology

It significantly improves the accuracy and stability of shooting, enhances the system's multi-scene adaptability and non-fatality guarantee, and reduces shooting errors and equipment losses caused by bore pressure fluctuations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a kinetic energy control system and method based on chamber pressure adjustment, and belongs to the technical field of kinetic energy control. By means of the chamber pressure adjusting system, the initial speed of the projectile can be dynamically and accurately adjusted and controlled so as to meet the requirements of different scenes, and projectile initial speed control can be conducted on different targets at different distances; controllable grading of kinetic energy is achieved through accurate adjustment of the chamber pressure, strict control over the damage grade is facilitated, and it is ensured that the system meets the non-lethal requirement; by adjusting the chamber pressure in real time, changes of external conditions can be compensated, and it is ensured that the system always operates within design parameters; parameters can be adjusted according to different projectiles, wide adaptability is achieved, the consistency and precision of shooting are remarkably improved through accurate adjustment of the chamber pressure, and the method has the advantage especially when a specific target needs to be accurately hit.
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Description

Technical Field

[0001] The present invention relates to the technical field of kinetic energy control, and specifically to a kinetic energy control system and method based on chamber pressure regulation. Background Art

[0002] The kinetic energy control technology of launch devices is a complex technology involving multiple disciplines. Its core goal is to improve the accuracy, stability, and safety of launch devices by precisely controlling kinetic energy. With the development of materials science, control technology, and artificial intelligence, this technology is rapidly developing towards the direction of intelligence, lightweight, and multi-functionality, and has broad application prospects in the military, aerospace, and industrial fields.

[0003] Chinese Patent CN118459293A discloses a variable-power ammunition and its preparation method with controllable kinetic energy based on voltage. This method is based on a new ammunition structure using voltage, including the following components by mass percentage: binder: 10% - 20%; oxidizer: 55% - 67%; curing agent: 1% - 5%; auxiliary oxidizer 1: 16% - 24%; auxiliary oxidizer 2: 5% - 10%; functional additive: 0% - 4%. The addition of the conductive oxidizer hydroxylammonium nitrate is the basis for the conductive characteristics of this new ammunition. Since the ammunition has a certain resistance, heat is generated when an electric current passes through it. When the voltage is changed, on the one hand, the electrolysis reaction rate of the ammunition will be changed, and on the other hand, the heat generated by the ammunition when the current passes through will also change, thereby changing the internal pyrolysis reaction rate of the ammunition, and finally realizing the change of the burning rate of the propellant. Chinese Patent CN117739739A discloses an adjustable-pressure pneumatic launch device, which includes a horizontally arranged barrel. One end of the barrel is provided with a loading chamber, and a pneumatic bullet is arranged in the loading chamber; the loading chamber is connected to a gas cylinder through a working air path, and the working air path can be used to fill the gas cylinder with gas. After reaching the target pressure, the working air path can also control the high-pressure gas in the gas cylinder to flow through the pipeline to the barrel, and push the pneumatic bullet in the loading chamber to be launched along the barrel. This structure can adjust the chamber pressure according to different striking distances to achieve controllable terminal kinetic energy strikes; the structure is simple, and there is no need for a base, cartridge case, and gunpowder in ammunition design, and the gun body does not require consumable parts such as a firing pin and a hammer, with high reliability; there is no need for gunpowder launch, avoiding the erosion of the barrel and simplifying the daily maintenance process.

[0004] Based on the above content, the kinetic energy control of existing conventional launch devices mainly relies on pneumatic launch to adjust the chamber pressure. However, there is no substantial upgrade for traditional gunpowder kinetic energy weapons. To solve this problem, the present invention proposes a kinetic energy control system and method based on chamber pressure regulation. Summary of the Invention

[0005] 1. Technical Problems to be Solved by the Present Invention

[0006] The object of the present invention is to provide a kinetic energy control system and method based on chamber pressure regulation to solve the following problems:

[0007] (1) Muzzle velocity control problem:

[0008] The muzzle velocity control of traditional riot guns is limited. It is easy for the muzzle velocity of projectiles to be unstable due to chamber pressure fluctuations, which in turn affects accuracy and range of action;

[0009] (2) Non-lethality and safety control problem:

[0010] In riot scenarios, too high a muzzle velocity of the projectile may cause fatal injuries to the target, while too low a muzzle velocity may result in loss of effectiveness;

[0011] (3) Influence of chamber pressure fluctuations on performance:

[0012] Due to ammunition and environment (temperature, humidity, etc.) may cause chamber pressure changes, such fluctuations often affect the shooting accuracy and stability in traditional designs;

[0013] (4) Adaptability problem:

[0014] Riot guns may need to use different types of projectiles (such as rubber bullets, tear gas grenades, net guns, etc.), and traditional firearms often have difficulty in meeting the kinetic energy requirements of different types of ammunition;

[0015] (5) Shooting accuracy problem:

[0016] Precise control of the muzzle velocity directly affects shooting accuracy.

[0017] 2. Technical solutions

[0018] To achieve the above object, the present invention provides the following technical solutions:

[0019] The present invention proposes a kinetic energy control system and method based on chamber pressure regulation. Through the chamber pressure regulation system, the muzzle velocity of the projectile can be dynamically and precisely regulated to adapt to different scenario requirements, and the muzzle velocity of the projectile can be controlled for different distances and different targets; through precise chamber pressure regulation, controllable grading of kinetic energy is achieved, which helps to strictly control the damage level and ensure that the system meets the non-lethality requirements; by adjusting the chamber pressure in real time, the changes in external conditions can be compensated, ensuring that the system always operates within the design parameters; the present invention can adjust parameters for different projectiles to achieve wide adaptability, and also significantly improves the shooting consistency and accuracy through precise chamber pressure regulation, especially having advantages when precise hitting of specific targets is required; specifically, it includes the following content:

[0020] A kinetic energy control system based on chamber pressure regulation, including a barrel, a projectile, a chamber module, and a chamber pressure compensation module; the chamber module and the projectile are both arranged inside the barrel, and the chamber pressure compensation module is connected to one side of the barrel;

[0021] The chamber module includes several interconnected chamber bins, and propellant is arranged inside the chamber bins; an ignition coil is wound and connected to the surface of each chamber bin;

[0022] The chamber pressure compensation module includes a bracket and a gas cylinder. The bracket is fixedly connected to one side of the barrel, and the gas cylinder is fixedly installed on the barrel through the bracket. High-pressure inert gas is filled inside the gas cylinder; a gas guide pipe is also fixedly connected to the gas cylinder, and one end of the gas guide pipe away from the gas cylinder is communicated with the barrel, and a valve is also fixedly installed on the gas guide pipe.

[0023] Preferably, the projectile matches the chamber module, and the projectile contacts the end of the chamber bin near the muzzle.

[0024] Preferably, a pressure sensor is also fixedly installed on the inner wall of the barrel to monitor the pressure in the chamber inside the barrel and match the chamber pressure compensation module.

[0025] A kinetic energy control method based on chamber pressure regulation includes the following steps:

[0026] S1. Chamber pressure control preparation: preset the parameters of the kinetic energy control system, calculate the required chamber pressure by the intelligent terminal; load propellant into multiple chamber bins and set the ignition sequence; initialize the valve on the gas cylinder and set the initial gas supply pressure;

[0027] S2. Ignition and pressure release: After triggering the shooting, ignite the first chamber bin to release part of the chamber pressure to push the projectile to start accelerating; as the projectile accelerates, the chamber pressure in the chamber gradually decreases, and the control system triggers the propellant in the subsequent chamber bins to supplement the chamber pressure;

[0028] S3. Gas cylinder supplements chamber pressure: In the middle and later stages of the projectile acceleration, if the chamber pressure drops beyond the set range, the pressure sensor triggers the gas cylinder to release gas after detecting the pressure data; the released gas enters the chamber inside the barrel through the valve to achieve stable compensation of the chamber pressure and avoid initial velocity deviation caused by insufficient chamber pressure;

[0029] S4. Final control and shooting completion: At the moment before the projectile exits the barrel, the chamber pressure is adjusted to the optimal state to ensure the design accuracy and initial velocity consistency; then close the ignition coil on the chamber bin and the valve of the gas cylinder to complete the entire chamber pressure control process.

[0030] 3. Beneficial effects

[0031] (1) Significantly improved accuracy and efficiency

[0032] Precise Chamber Pressure Control: Through the multi-chamber staged ignition and the compensation mechanism of the external gas cylinder, the stability of the chamber pressure can be maintained during the entire projectile acceleration process, effectively improving the accuracy of projectile muzzle velocity control;

[0033] Shooting Consistency: Compared with the traditional single-chamber structure, this invention significantly reduces the shooting errors caused by incomplete combustion or chamber pressure fluctuations, improving shooting accuracy and stability;

[0034] Multi-Scene Adaptability: Users can flexibly adjust the chamber pressure and muzzle velocity parameters according to target requirements, making the device applicable to near, medium, and long-distance targets, enhancing the system's usage efficiency;

[0035] (2) Simplicity of Operation and Control

[0036] Intelligent Operation: The device is equipped with a pressure sensor, an ignition control system, and regulating valves to achieve closed-loop automatic regulation, reducing the complexity of manual intervention;

[0037] Quick Adjustment: The external gas cylinder and multi-chamber design enable operators to quickly adapt to different types of projectiles without replacing complex components, improving operation efficiency;

[0038] Convenient Maintenance: The modular design makes each component (such as gas cylinders, air ducts, control valves, etc.) easy to disassemble and replace, simplifying the maintenance process;

[0039] (3) Energy Consumption and Raw Material Savings

[0040] Optimized Utilization of Propellant: The multi-chamber structure supports staged combustion, avoiding resource waste caused by excessive combustion at one time, thus reducing the consumption of propellant;

[0041] Efficient Use of Gas: By precisely controlling the gas supply volume of the gas cylinder, unnecessary losses of high-pressure gas are significantly reduced, achieving efficient use of energy;

[0042] Reduction of Wear Parts: The stable chamber pressure reduces the impact and wear on the inner walls of the gun body (especially the gun chamber and chamber), extending the service life of the device and reducing long-term costs;

[0043] (4) Quality Improvement

[0044] Smooth Kinetic Energy Output: Through multi-chamber ignition and the compensation of the external gas cylinder, the chamber pressure is released more smoothly, avoiding irregular movement of the projectile caused by pressure fluctuations;

[0045] Higher Safety: Real-time monitoring and precise control of the chamber pressure can effectively avoid the risks of gun malfunctions or explosions caused by excessive pressure;

[0046] Non-Lethal Guarantee: The muzzle velocity of the projectile can be precisely controlled, making the system strictly meet non-lethal requirements and applicable to riot control, law enforcement and other scenarios;

[0047] (5) Improvements in Environment and Safety

[0048] Reduce environmental pollution: Optimize the utilization rate of propellant and the gas compensation of gas cylinders, and reduce the pollution of smoke and residues caused by incomplete combustion;

[0049] Low noise output: The segmented release of chamber pressure effectively reduces the noise pollution during shooting and improves the friendliness of the operating environment;

[0050] Non-lethal design: Precise control of chamber pressure and muzzle velocity can ensure safety in use and reduce the incidence of accidental fatal injuries;

[0051] (6) Process Optimization and Production Efficiency Improvement

[0052] Structural integration: The present invention organically combines multiple chambers, external gas cylinders and chamber pressure control systems, reducing the processing and assembly links of multiple separated structures in traditional equipment;

[0053] High productivity: The modular design simplifies the assembly and production processes of the equipment, is suitable for large-scale production, and significantly improves the manufacturing efficiency;

[0054] Reduction of processes: The design of integrating multiple functions reduces the additional processes required for component assembly and debugging.

[0055] In summary, with its significant advantages such as precise chamber pressure control, multi-scenario adaptation, high efficiency, energy conservation, safety and environmental protection, the present invention overcomes the deficiencies of existing riot gun technologies in terms of accuracy, reliability, non-lethality and ease of use, and provides a comprehensive upgrade solution for riot gun technologies. Description of the Drawings

[0056] Figure 1 It is a schematic cross-sectional view of a kinetic energy control system based on chamber pressure regulation proposed by the present invention;

[0057] Figure 2 It is a schematic cross-sectional view of the chamber module proposed in Embodiment 1 of the present invention;

[0058] Figure 3 It is a schematic cross-sectional view of the physical object of the chamber module mentioned in Embodiment 1 of the present invention;

[0059] Figure 4 It is a schematic view of the riot gun mentioned in Embodiment 1 of the present invention;

[0060] Figure 5 It is a partially enlarged structural view of the riot gun mentioned in Embodiment 1 of the present invention;

[0061] Figure 6 It is a schematic view of the physical object of the chamber pressure compensation module mentioned in Embodiment 1 of the present invention.

[0062] Description of reference numerals in the figure:

[0063] 1. Bracket; 2. High-pressure inert gas; 3. Gas cylinder; 4. Gas guide tube; 5. Valve; 6. Barrel; 7. Projectile; 8. Chamber magazine; 9. Ignition coil. Specific implementation mode

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0065] Embodiment 1:

[0066] Please refer to Figure 1-6 , and the present invention will be described by taking the riot gun designed based on the proposed kinetic energy control system as an example. The specific content is as follows.

[0067] The riot gun consists of the following parts:

[0068] (1) Gun body

[0069] Structural description: The main frame of the riot gun, including the barrel, stock, trigger mechanism, and brackets or interfaces for installing external components.

[0070] Function: Carry each key component and provide stable support for the entire system.

[0071] Connection relationship: The chamber magazine 8 and the multi-stage ignition coil 9 are integrated on the gun body, and the external gas cylinder 2 is connected through the bracket 1.

[0072] (2) External gas cylinder

[0073] Structural description: A container for storing high-pressure inert gas (such as nitrogen or compressed air), usually made of high-strength alloy material.

[0074] Function: Provide controllable high-pressure gas for compensating chamber pressure or directly participating in pushing the projectile 7.

[0075] Connection relationship: Fixed outside the gun body through the bracket 1 and connected to the valve 5 through the gas guide tube 4.

[0076] (3) Gas guide tube

[0077] Structural description: A section of high-pressure-resistant conduit connecting the external gas cylinder 2 and the chamber magazine 8, with a flexible or rigid structure.

[0078] Function: Transport the high-pressure gas released from the gas cylinder 2 to the chamber magazine 8.

[0079] Connection relationship: One end is connected to the valve 5, and the other end leads to the barrel 6.

[0080] (4) Chamber magazine

[0081] Structural description: Multiple chambers at the rear end of the barrel are divided into multiple sub-chambers according to their functions, and each chamber magazine 8 is isolated by a chamber baffle.

[0082] Function: To accommodate the propellant and release gas in stages to push the projectile.

[0083] Connection relationship:

[0084] Each sub-chamber magazine 8 is internally provided with multiple-stage ignition coils 9.

[0085] The chamber magazine 8 acts directly on the projectile 7 through the barrel.

[0086] (5) Multiple-stage ignition coil

[0087] Structural description: Multiple groups of inductive ignition devices arranged in the chamber, which sequentially ignite the propellant in each chamber.

[0088] Function: To control the combustion sequence, achieve segmented chamber pressure release, and avoid pressure peaks.

[0089] Connection relationship: Corresponding to each sub-chamber in the chamber one by one, triggered by the signal of the gun body control system.

[0090] (6) Gas cylinder bracket

[0091] Structural description: A mechanical structure for fixing the gas cylinder 2, usually made of a metal frame or high-strength polymer material.

[0092] Function: To firmly fix the external gas cylinder and ensure the overall balance and portability of the gun.

[0093] Connection relationship: Fixed on the outside of the gun body to ensure a reliable connection between the gas cylinder 2 and the gas guide pipe 4.

[0094] (7) Valve

[0095] Structural description: A group of electric or manual regulating valves with pressure regulating functions to control the gas release rate and pressure.

[0096] Function: To adjust the gas flow rate released by the gas cylinder according to the real-time chamber pressure requirement to ensure that the chamber pressure is within the designed range.

[0097] Connection relationship: Connected to the external gas cylinder 2 and the gas guide pipe 4 through pipelines and regulated by the signal of the gun control system.

[0098] (8) Chamber baffle

[0099] Structural description: An isolation structure located between the propellant chambers 8, which is resistant to high temperature and high pressure and has controllable openings (vent holes).

[0100] Function: Isolate the combustion gases of each propellant chamber 8 to prevent combustion interference with each other, and at the same time control the opening timing of the vent holes.

[0101] Connection relationship: Fastened inside the propellant chamber and connected to each sub-propellant chamber in the designed order.

[0102] Description of the working process:

[0103] 1. Preset and initialization

[0104] The operator sets the muzzle velocity parameter through the gun control panel according to the actual usage scenario (such as the target distance and non-lethal requirements). The gun control system calculates the required chamber pressure and sends commands to the control valve and ignition coil.

[0105] 2. Projectile loading and propellant chamber preparation

[0106] The projectile is loaded into the barrel, and the propellant is divided and loaded into four independent sub-propellant chambers.

[0107] The propellant chamber baffle closes the vent hole to prevent combustion gases from interfering with each other.

[0108] 3. Firing process

[0109] First-stage ignition: After the trigger is pulled, the gun control system ignites the propellant in the first propellant chamber. The combustion gas rapidly expands in the propellant chamber, generating an initial chamber pressure to push the projectile to start accelerating.

[0110] Chamber pressure monitoring and compensation: The pressure sensor continuously detects the chamber pressure. When the chamber pressure is lower than the preset value, the control system triggers the control valve to open, and the high-pressure gas in the gas cylinder enters the propellant chamber through the gas guide pipe to compensate for the chamber pressure.

[0111] Second-stage ignition: As the projectile moves forward, the chamber pressure in the first sub-propellant chamber decreases, and the gun control system ignites the propellant in the second sub-propellant chamber to further accelerate the projectile.

[0112] Final ignition and stable output: Ignite the third and fourth sub-propellant chambers in the same way, and accurately release the gas in the gas cylinder according to the change of chamber pressure to ensure that the projectile reaches the preset muzzle velocity when it exits the barrel.

[0113] 4. Projectile exit and system reset

[0114] The projectile exits the barrel under the action of the stable chamber pressure, completing the shooting.

[0115] The control system closes all the gas cylinder valves, the ignition system resets, and the gas in the propellant chamber is emptied.

[0116] Implementation effect:

[0117] This embodiment combines a multi-chamber structure and an external gas cylinder compensation, and can achieve precise adjustment of chamber pressure in various environments, achieving the following effects:

[0118] 1. Muzzle velocity control accuracy: within ±5%.

[0119] 2. Safety: The chamber pressure is always lower than the design load limit to avoid the risk of bursting.

[0120] 3. Diversified adaptability: It can be compatible with projectiles of different masses and types.

[0121] 4. High energy consumption ratio: The usage efficiency of both propellant and gas cylinder gas is increased by about 20%.

[0122] Through the above detailed description, those skilled in the art can directly manufacture a riot gun that conforms to the patented technology according to the drawings and description of the present invention, without further experiments or explorations.

[0123] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A kinetic energy control system based on chamber pressure regulation, characterized in that: It comprises a barrel (6), a projectile (7), a chamber module and a chamber pressure compensation module; the chamber module and the projectile (7) are both arranged inside the barrel (6), and the chamber pressure compensation module is connected to one side of the barrel (6); The chamber module comprises a plurality of mutually connected chamber compartments (8), wherein propellant is arranged inside the chamber compartments (8); an ignition coil (9) is wound around the surface of each chamber compartment (8); The chamber pressure compensation module comprises a bracket (1) and a gas cylinder (3), wherein the bracket (1) is fixedly connected to one side of a barrel (6), the gas cylinder (3) is fixedly mounted on the barrel (6) via the bracket (1), and the interior of the gas cylinder (3) is filled with a high-pressure inert gas (2); the gas cylinder (3) is also fixedly connected to a gas guide tube (4), the end of the gas guide tube (4) away from the gas cylinder (3) is connected to the barrel (6), and a valve (5) is also fixedly mounted on the gas guide tube (4).

2. A kinetic energy control system based on chamber pressure regulation as claimed in claim 1, characterized in that: The projectile (7) matches the chamber module, wherein the projectile (7) contacts the end of the chamber (8) close to the muzzle.

3. A kinetic energy control system based on chamber pressure regulation as claimed in claim 1, characterized in that: A pressure sensor is also fixedly mounted on the inner wall of the barrel (6) for monitoring the pressure of the chamber inside the barrel (6) and matching the chamber pressure compensation module.

4. A kinetic energy control method based on chamber pressure regulation implemented by the system according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1. Chamber pressure control preparation: preset the parameters of the kinetic energy control system, and calculate the required chamber pressure by the intelligent terminal; load propellant into multiple chambers (8), and set the ignition sequence; initialize the valve (5) on the gas cylinder (3), and set the initial gas supply pressure; S2, ignition and pressure release: after triggering the shooting, the first chamber (8) is ignited, releasing part of the chamber pressure to push the projectile (7) to start accelerating; As the projectile (7) accelerates, the chamber pressure gradually decreases, and the control system excites the propellant in the subsequent chamber (8) to replenish the chamber pressure; S3, replenishing the chamber pressure with a gas cylinder: in the middle and later stages of the acceleration of the projectile (7), if the chamber pressure drops beyond a set range, the pressure sensor detects the pressure data and triggers the gas cylinder (3) to release gas; the released gas enters the chamber in the barrel (6) through the valve (5), achieving stable compensation of the chamber pressure, thereby avoiding initial velocity deviation caused by insufficient chamber pressure; S4, final control and shooting completion: In the moment before the projectile (7) leaves the chamber, the chamber pressure is adjusted to the optimal state to ensure the design accuracy and initial velocity consistency; then the ignition coil (9) on the chamber (8) and the valve (5) of the gas cylinder (3) are closed to complete the entire chamber pressure control process.

Citation Information

Patent Citations

  • Pressure-adjustable pneumatic launching device

    CN117739739A

  • Variable-power ammunition capable of realizing kinetic energy controllability based on voltage and preparation method of variable-power ammunition

    CN118459293A