A combined cold and hot gas attitude control power system

Abstract

The present invention discloses a combined cold and hot gas attitude control power system, which is a power system applicable to the attitude adjustment control and stabilization of various missiles during operation, providing pitch, roll and yaw control capabilities. The system consists of a gas attitude control system, a cold gas attitude control system, a drive control system, etc. The advantages of this system are as follows: it can achieve the small-thrust three-channel attitude control function, and at the same time has the control function of large-thrust pitch, roll and yaw within multiple intermittent short time periods, and has the ability to adjust the thrust magnitude and action frequency according to requirements, meeting the multiple long-endurance attitude adjustment capabilities required during the operation of various ballistic missiles. The present invention has high performance reliability, simple structure, strong designability, high safety, simple maintenance and wide application range.

Description

Technical Field

[0001] The present invention relates to a combined cold and hot gas attitude control power system, belonging to the technical field of attitude and orbit control of solid rocket devices. Background Art

[0002] With the rapid development of the technology of the new generation of weaponry and equipment, which has currently become the focus of military attention, the attitude and orbit control power system is an essential device for weapons.

[0003] Conventional attitude and orbit control generally falls into two types. One uses a solid rocket engine as the power source, and this type of attitude and orbit control is mostly used for the terminal attitude adjustment of medium- and long-range missiles. Its advantages are non-toxicity, high energy density, and the ability to provide a large thrust. Its disadvantages are that it can only achieve single ignition, and once ignited, it cannot be extinguished, is difficult to control, and has a limited working time. The other uses a liquid rocket engine as the power source, and this type of attitude and orbit control is mostly used for attitude adjustment of high-altitude aircraft such as satellites. Its advantages are good controllability of liquid fuel, ready-to-use, and long-term storage of fuel, which is suitable for providing attitude adjustment power for long-endurance aircraft. Its disadvantages are that liquid fuel is mostly highly toxic, causes relatively large environmental pollution, and the thrust it generates is usually small, with a limited scope of application.

[0004] Therefore, designing an attitude control power system that can provide a large thrust, is convenient for storage, ready-to-use, has clean energy, is suitable for long endurance, can be ignited multiple times, can be used for medium- and long-range applications, has a wide thrust gradient range, and can achieve attitude adjustment capabilities such as pitch, roll, and yaw is the problem to be solved by the present invention. Summary of the Invention

[0005] The technical problem solved by the present invention is: to overcome the problems of the prior art and provide an attitude control power system applicable to long endurance, wide thrust range, and clean energy. Specifically, it solves the following problems: First, the attitude adjustment capabilities such as pitch, roll, and yaw required by missiles or other aircraft; Second, the different thrust requirements for attitude adjustment at various flight stages of various aircraft; Third, the characteristic that the attitude and orbit control power system used by the aircraft needs to have clean energy; Fourth, the aircraft needs to operate in the air for a long time with high energy requirements; Fifth, it is required that the device is safe, harmless, easy to use, and durable in storage. The above problems commonly exist in current various attitude and orbit control power systems and urgently need to be solved.

[0006] The technical solution adopted by the present invention is:

[0007] A combined cold and hot gas attitude control power system, including a gas attitude control system, a cold gas attitude control system, and a drive control system; the gas attitude control system, the cold gas attitude control system, and the drive control system are all fixedly installed in the cabin;

[0008] The gas attitude control system includes a gas generator, a gas valve, and a pipeline assembly;

[0009] The cold gas attitude control system includes a high-pressure gas cylinder, a cold gas engine, a pressure reducing valve, an electric explosion valve, and a cold gas pilot valve;

[0010] Multiple cold gas engines are evenly distributed in pairs on the inner wall of the cabin. Multiple gas generators are also evenly distributed on the inner wall of the cabin, and the cold gas engines and gas generators are orthogonally distributed;

[0011] After the cold gas attitude control system receives a control command, the electric explosion valve explodes electrically, forming a passage between the high-pressure gas cylinder and the downstream pipeline assembly. The high-pressure gas is reduced to a constant pressure by the pressure reducing valve. Part of the gas is supplied to the cold gas engine, and the other part is supplied to the cold gas pilot valve as the actuation switch of the gas valve; a system that combines cold and hot gas operation is formed.

[0012] Furthermore, the cold gas pilot valve opens and closes according to the control command of the drive control system. Gas enters the valve cavity of the cold gas pilot valve to generate a certain pressure, thereby opening the overall gas valve. At this time, the gas generator receives the control command of the drive control system to ignite, and the gas is ejected through the gas valve orifice to form a thrust.

[0013] Furthermore, the drive control system controls the electrical signals of the entire power system, including: the actuation timing of the cold gas engine, the actuation timing of the cold gas pilot valve, the ignition zero point of the electric explosion valve, and the ignition zero point of the gas generator, and receives the feedback signal in real time to feedback the actual working state of the engine.

[0014] Furthermore, the cold gas engine in the cold gas attitude control system can operate independently to provide a deflection torque, and the torque size can be adjusted and controlled by adjusting the opening of the pressure reducing valve;

[0015] The cold gas attitude control system and the gas attitude control system can work simultaneously to provide roll, pitch, and yaw torques at the same time.

[0016] Furthermore, in the cold gas attitude control system, the number and size of the cold gas engines can be adjusted according to the working duration and the required thrust size; in the gas attitude control system, the number of gas generators and the amount of loaded gunpowder can also be designed and adjusted according to the required thrust size and working duration.

[0017] Furthermore, the gas valve and the cold gas pilot valve form a combined device that controls the gas flow velocity and frequency after the gas generator ignites; the valve core of the cold gas pilot valve is controlled by an electromagnetic valve to move. The cold gas flows from the high-pressure gas cylinder into the cold gas pilot valve through the pipeline, controlling the lifting of the valve rod of the gas valve, thereby controlling the opening and closing of the gas valve orifice, so that the gas flows out of the gas valve orifice at the designed frequency to generate a thrust and control the cabin to generate a pitch torque.

[0018] Further, the high-pressure gas cylinder is a high-pressure-bearing device, made by using a carbon fiber winding process with a thin metal inner liner, and is filled with high-pressure nitrogen gas inside; the pipeline assembly uses an integrated material with heat insulation and heat prevention structures.

[0019] Further, the cold gas attitude control system further includes a safety valve for controlling the maximum threshold pressure of the outlet of the high-pressure gas cylinder. When the cold gas engine pauses and the gas release after pressure reduction by the pressure reducing valve slows down, the air pressure in the pipeline will be greater than the safety threshold, which will affect the response time of the gas valve. At this time, the safety valve automatically opens to release the gas in the pipeline, reducing the pressure to the rated working pressure.

[0020] Further, the cold gas attitude control system further includes a high-pressure sensor and a low-pressure sensor for monitoring the high pressure and low pressure in the high-pressure gas cylinder and the pipeline assembly, and transmitting the data to the drive control system in real time through a cable.

[0021] Further, each gas generator in the gas attitude control system has an ignition structure and a sealing structure, and can work independently without affecting each other; after a single gas generator is ignited, the generated gas is transmitted to the nozzles of each gas valve through the pipeline assembly to generate thrust. At the same time, under the action of the sealing structure, the hot gas will not enter the combustion chamber of the unignited gas generator.

[0022] Further, the gas system can achieve safety by reasonably setting the proportional relationship between the working pressure of the pilot valve and the main valve pressure. When the pressure of the gas generator is too high, it can push open the valve core of the gas valve to release the gas system pressure.

[0023] Further, the gas attitude control system can be designed to be single-open, double-open, or switched to more valves fully open, enabling the gas generator to enter the low-pressure standby state, further improving the energy utilization rate. It can also have multiple combustion chambers and multiple valves working simultaneously to improve the attitude control force.

[0024] The beneficial effects of the present invention compared with the prior art are as follows:

[0025] (1) The present invention can achieve the small-thrust three-channel attitude control function, and at the same time has the control function of large thrust pitch, roll, and yaw in multiple intermittent short time periods.

[0026] (2) The present invention has the ability to adjust the thrust magnitude and action frequency according to requirements, meeting the multiple long-endurance attitude adjustment capabilities required for various ballistic missile operations.

[0027] (3) The present invention has high performance reliability, simple structure, strong designability, high safety, simple maintenance, and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a cold and hot gas composite attitude control power system;

[0029] Figure 2 It is a top - view schematic diagram of the structure of a combined cold - and - hot - gas attitude control power system;

[0030] Figure 3 It is a working principle diagram of a combined cold - and - hot - gas attitude control power system;

[0031] Figure 4 It is a working principle diagram of the gas generator, gas valve, cold - gas pilot valve gas attitude control system;

[0032] Figure 5 It is a working principle diagram of the cold - gas engine, electric blasting valve and other cold - gas attitude control systems;

[0033] In the figure, 1 - gas generator, 2 - gas valve, 3 - high - pressure gas cylinder, 4 - cold - gas engine, 5 - pressure reducing valve, 6 - electric blasting valve, 7 - cold - gas pilot valve, 8 - safety valve, 9 - high - pressure sensor, 10 - low - pressure sensor, 11 - pipeline assembly, 12 - drive control system, 13 - cabin Specific implementation manners

[0034] The following further describes the specific implementation manners of the present invention in conjunction with the attached drawings.

[0035] As Figure 1 and Figure 2 shown, the present invention provides a combined cold - and - hot - gas attitude control power system, including a gas generator 1, a gas valve 2, a high - pressure gas cylinder 3, a cold - gas engine 4, a pressure reducing valve 5, an electric blasting valve 6, a cold - gas pilot valve 7, a safety valve 8, a high - pressure sensor 9, a low - pressure sensor 10, a pipeline assembly 11, a drive control system 12, and a cabin 13.

[0036] The gas generator 1, the gas valve 2, and the pipeline assembly 11 belong to the gas attitude control system;

[0037] The high - pressure gas cylinder 3, the cold - gas engine 4, the pressure reducing valve 5, the electric blasting valve 6, the cold - gas pilot valve 7, the safety valve 8, the high - pressure sensor 9, and the low - pressure sensor 10 belong to the cold - gas attitude control system.

[0038] The gas attitude control system, the cold - gas attitude control system, and the drive control system together constitute a combined attitude control power system, and this system is placed inside the cabin 13.

[0039] The assembly sequence of the structural model given in this example should be: First, form the cold - gas attitude control system with the high - pressure gas cylinder 3, the cold - gas engine 4, the pressure reducing valve 5, the electric blasting valve 6, the cold - gas pilot valve 7, the safety valve 8, the high - pressure sensor 9, and the low - pressure sensor 10, put it into the cabin 13, and tightly connect it to the cabin through screws;

[0040] Then, place the gas attitude control system composed of the gas generator 1, the gas valve 2, and the pipeline assembly 11 into the cabin 13, fasten it to the cabin 13 with screws, and finally place the drive control system 12 into the cabin 13 and fasten it with screws, as Figure 1 shown.

[0041] In the embodiment of the present invention, a total of 8 cold gas engines 4 are installed, evenly distributed in pairs on the inner wall of the cabin. A total of 4 gas generators 1 are installed, evenly distributed on the inner wall of the cabin. The cold gas engines and the gas generators are orthogonally distributed, as Figure 1 shown on the left. This installation method is convenient for assembly and improves the space utilization rate at the same time. In particular, the quantity and size of the cold gas engines and the gas generators can be designed according to the thrust and time requirements, including but not limited to the structural form in this embodiment.

[0042] In the embodiment of the present invention, the working principle of the composite attitude control power system is as Figure 3 shown. After the cold gas system receives the control instruction, the electric blasting valve 6 explodes electrically, and a passage is formed between the high-pressure gas cylinder 3 and the downstream pipeline. The high-pressure gas is reduced to a constant pressure by the pressure reducing valve 5, and the gas is supplied to the front of the cold gas engine 4 and the cold gas pilot valve 7. Each engine solenoid valve is opened and closed according to the control instruction, directly controlling the nitrogen gas to be ejected to form thrust. The cold gas pilot valve 7 is opened and closed according to the instruction of the drive control system 12. Nitrogen gas enters the valve cavity of the cold gas pilot valve 7 to generate a certain pressure, thereby opening the overall gas valve 2. At this time, the gas generator 1 receives the instruction of the drive control system 12 to ignite, and the gas is ejected from the orifice of the gas valve 2 to form thrust.

[0043] The drive control system 12 controls the electrical signals of the entire power system, including: the actuation timing of the cold gas engine 4, the actuation timing of the cold gas pilot valve 7, the ignition zero point of the electric blasting valve 6, and the ignition zero point of the gas generator 1, and receives the feedback signal in real time to feedback the actual working state of the engine.

[0044] In the embodiment of the present invention, the working principle diagram of the gas generator, the gas valve, and the cold gas pilot valve gas attitude control system is as Figure 4 shown. The electromagnet in the cold gas pilot valve 7 receives the instruction of the drive control system 12, emits a on-off current, the spool of the cold gas pilot valve 7 moves, driving the valve rod of the gas valve 2 to move, so that the hot gas at the nozzle of the gas valve sprays out at a specified frequency to form a regular thrust. In this embodiment, the form of the cold gas pilot valve 7 pushing to control the opening and closing of the gas valve 2 includes but is not limited to that shown in this embodiment.

[0045] In the embodiment of the present invention, the pipeline assembly 11 is made of a material with integrated anti-heat insulation structure function, with low ablation amount. While reducing the number of components, the risk of blocking the valve outlet is reduced.

[0046] In the embodiment of the present invention, the high-pressure gas cylinder 3 is made by a carbon fiber winding process with a thin metal inner liner. The gas cylinder is filled with high-pressure nitrogen, and the materials of the gas cylinder and the gas filled in the gas cylinder include but are not limited to the materials and gas types in this embodiment.

[0047] In the embodiment of the present invention, the safety valve 8 functions to control the highest pressure threshold at the outlet of the high-pressure gas cylinder. When the cold gas engine 4 pauses working, resulting in a slow release of the gas after the pressure reducing valve 5 reduces the pressure, the air pressure in the pipeline will be greater than the safety threshold, which will in turn affect the response time of the gas valve 2. At this time, the safety valve 8 automatically opens to release the gas in the pipeline, reducing the pressure to the rated working pressure.

[0048] In the embodiment of the present invention, the cold gas attitude control system such as the cold gas engine and the electric explosion valve can work independently to provide thrust, and its working principle is as Figure 5 shown. The cold gas engine 4 works alone to provide a deflection moment, and the magnitude of the moment can be adjusted and controlled by adjusting the opening degree of the pressure reducing valve 5; the cold gas attitude control system and the gas attitude control system can work simultaneously to provide roll, pitch, and yaw moments at the same time.

[0049] In the cold gas attitude control system, the quantity and size of the cold gas engines 4 can be adjusted according to the working duration and the required thrust magnitude; in the gas attitude control system, the quantity and the propellant charge of the gas generators 1 can also be designed and adjusted according to the required thrust magnitude and the working duration.

[0050] In the embodiment of the present invention, both a high-pressure sensor 9 and a low-pressure sensor 10 are provided to monitor the pressure in the high-pressure gas cylinder 3 and the pipeline assembly 11, and at the same time transmit the data to the drive control system 12 in real time through a cable, which is convenient for timely feedback and adjustment.

[0051] In the embodiment of the present invention, the gas attitude control system has multiple gas generators 1. Each gas generator 1 has an ignition structure and a sealing structure and can work independently without mutual influence. After the gas generator 1 is ignited, the generated gas can be transmitted to the nozzle of each gas valve 2 through the pipeline assembly 11 to generate thrust. At the same time, under the action of the sealing structure, the hot gas will not enter the combustion chamber of the unignited gas generator 1.

[0052] The cold and hot gas composite attitude control power system described in the present invention has completed the product development. The product processability and producibility have been verified, and at the same time, the system ground test assessment has been carried out, meeting the working performance requirements for the attitude adjustment of a certain type of engine.

[0053] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0054] The content not detailed in the specification of the present invention belongs to the well-known technology of those skilled in the art.

Claims

1. A cold and hot gas composite attitude control power system, characterized in that, It includes a gas attitude control system, a cold gas attitude control system, and a drive control system (12); the gas attitude control system, the cold gas attitude control system, and the drive control system (12) are all fixedly installed inside the cabin body (13); The gas attitude control system includes a gas generator (1), a gas valve (2), and a pipeline assembly (11); The cold gas attitude control system includes a high-pressure gas cylinder (3), a cold gas engine (4), a pressure reducing valve (5), an electric explosion valve (6), and a cold gas pilot valve (7); Multiple cold gas engines (4) are evenly distributed in pairs on the inner wall of the cabin, and multiple gas generators (1) are also evenly distributed on the inner wall of the cabin, and the cold gas engines (4) and the gas generators (1) are orthogonally distributed; After the cold gas attitude control system receives a control command, the electric explosion valve (6) explodes electrically, and the high-pressure gas cylinder (3) forms a passage with the downstream pipeline assembly (11). The high-pressure gas is reduced to a constant pressure through the pressure reducing valve (5). Part of the gas is supplied to the cold gas engine (4), and the other part is supplied to the cold gas pilot valve (7) as the actuation switch of the gas valve (2); a cold and hot gas combined working system is formed.

2. The cold and hot gas composite attitude control power system according to claim 1, characterized in that: The cold gas pilot valve (7) opens and closes according to the control command of the drive control system (12). Gas enters the valve cavity of the cold gas pilot valve (7) to generate a certain pressure, thereby opening the overall gas valve (2). At this time, the gas generator (1) receives the control command of the drive control system (12) to ignite, and the gas is ejected through the orifice of the gas valve (2) to form a thrust.

3. The cold and hot gas composite attitude control power system according to claim 1, characterized in that: The drive control system (12) controls the electrical signals of the entire power system, including: the actuation timing of the cold gas engine (4), the actuation timing of the cold gas pilot valve (7), the ignition zero point of the electric explosion valve (6), and the ignition zero point of the gas generator (1), and receives the feedback signal in real time to feedback the actual working state of the engine.

4. The cold and hot gas composite attitude control power system according to claim 1, characterized in that: The cold gas engine (4) in the cold gas attitude control system can operate independently to provide a deflection torque, and the torque magnitude is adjusted and controlled by adjusting the opening of the pressure reducing valve (5); The cold gas attitude control system and the gas attitude control system can work simultaneously to provide roll, pitch, and yaw torques at the same time.

5. The cold and hot gas composite attitude control power system according to claim 1, characterized in that: In the cold gas attitude control system, the quantity and size of the cold gas engines (4) are adjusted according to the working duration and the required thrust magnitude; in the gas attitude control system, the quantity and the charge amount of the gas generators (1) are also designed and adjusted according to the required thrust magnitude and the working duration.

6. The cold and hot gas composite attitude control power system according to claim 2, characterized in that: The gas valve (2) and the cold gas pilot valve (7) form a combined device for controlling the gas flow velocity and frequency after the gas generator (1) ignites; the valve core of the cold gas pilot valve (7) is controlled by an electromagnetic valve to move. Cold gas flows from the high-pressure gas cylinder (3) through the pipeline into the cold gas pilot valve (7) to control the lifting of the valve stem of the gas valve (2), thereby controlling the opening and closing of the nozzle of the gas valve (2), so that the gas flows out of the nozzle of the gas valve (2) at a designed frequency to generate a thrust and control the cabin to generate a pitch torque.

7. The cold and hot gas composite attitude control power system according to claim 1, characterized in that: The high-pressure gas cylinder (3) is a high-pressure bearing device, made by using a carbon fiber winding process with a thin metal inner liner, and the gas cylinder is filled with high-pressure nitrogen; the pipeline assembly (11) uses an integrated material with heat insulation and heat protection functions.

8. The cold and hot gas composite attitude control power system according to any one of claims 1-7, characterized in that: The cold gas attitude control system further includes a safety valve (8) for controlling the highest threshold of the outlet pressure of the high-pressure gas cylinder. When the cold gas engine (4) pauses working, resulting in a slow release of the gas after pressure reduction by the pressure reducing valve (5), the air pressure in the pipeline will be greater than the safety threshold, which will in turn affect the response time of the gas valve (2). At this time, the safety valve (8) automatically opens to release the gas in the pipeline, reducing the pressure to the rated working pressure.

9. The cold and hot gas composite attitude control power system according to any one of claims 1-7, characterized in that: The cold gas attitude control system further includes a high-pressure sensor (9) and a low-pressure sensor (10) for monitoring the high pressure and low pressure in the high-pressure gas cylinder (3) and the pipeline assembly (11), and simultaneously transmitting the data to the drive control system (12) in real time through a cable.

10. The cold and hot gas composite attitude control power system according to any one of claims 1-7, characterized in that: Each gas generator (1) in the gas attitude control system has an ignition structure and a sealing structure, and works independently without affecting each other. After a single gas generator (1) is ignited, the generated gas is transmitted to the nozzle of each gas valve (2) through the pipeline assembly (11) to generate thrust. At the same time, under the action of the sealing structure, the hot gas will not enter the combustion chamber of the unignited gas generator (1).

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