Integrated Verification Method for Hydrogen Micro-mixing Combustion Chamber

Abstract

This invention provides an integrated verification method for a hydrogen micro-mixing combustor, relating to the field of engine testing technology. The verification method includes: designing the combustor according to the engine's performance requirements and size constraints; designing the locations and leads of various test points on the engine for the deployment of the test system; designing a lubrication system to improve the lifespan of engine bearings; designing a hydrogen supply system and an ignition system based on the characteristics of hydrogen; assembling the designed combustor, test system, lubrication system, hydrogen supply system, and ignition system together and designing a control system to build an integrated verification platform; and conducting engine tests on the built integrated verification platform. Before building the integrated verification platform, the combustor, test system, lubrication system, hydrogen supply system, ignition system, and control system are designed to ensure safety and reliability, realistically simulating the operating environment of the hydrogen micro-mixing combustor, thereby completing engine development at minimal cost and meeting the verification requirements of the entire engine.

Description

Technical Field

[0001] This invention relates to the field of engine testing technology, and in particular to an integrated verification method for a hydrogen micro-mixing combustion chamber. Background Technology

[0002] One of the byproducts of hydrogen combustion is water vapor, which does not produce greenhouse gases or harmful substances such as carbon dioxide, thus offering the advantage of zero carbon emissions and contributing to low-carbon aviation. Simultaneously, hydrogen has a high calorific value; compared to traditional petroleum fuels, a unit mass of hydrogen contains more energy, providing greater thrust and flight range. With the continuous development and advancement of hydrogen energy technology, hydrogen, as a clean, high-energy-density fuel, has broad application prospects in the aviation field.

[0003] Compared to high-thrust engines, micro turbojet engines allow for rapid research and verification of hydrogen technology. However, existing micro turbojet engines all use aviation kerosene as fuel, resulting in relatively small combustion chambers. They typically employ compact designs to accommodate the overall engine's small size and weight requirements, and the combustion chambers must possess excellent sealing and high-temperature resistance. To ensure complete fuel combustion, the combustion chambers usually employ fuel-rich combustion. Overall, the design of micro turbojet engine combustion chambers emphasizes miniaturization, rich combustion conditions, and spray combustion to meet the requirements of high efficiency and compact structure for small engines. Reducing greenhouse gas emissions necessitates the use of green and renewable energy sources. However, the integrated verification of hydrogen micro-mixing combustion chambers remains a problem that needs to be solved. Summary of the Invention

[0004] This invention provides an integrated verification method for hydrogen micro-mixing combustors to solve the problem that the existing technology cannot perform integrated verification of hydrogen micro-mixing combustors.

[0005] This invention provides an integrated verification method for a hydrogen micro-mixing combustion chamber, the verification method comprising:

[0006] The combustion chamber is designed according to the engine's performance requirements and size constraints; the location and lead wires of each test point on the engine are designed to facilitate the installation of the test system; the lubrication system is designed to improve the life of the engine bearings; and the hydrogen supply system and ignition system are designed according to the characteristics of hydrogen.

[0007] The designed combustion chamber, testing system, lubricating oil system, hydrogen supply system and ignition system are assembled together, and a control system is designed to build an integrated verification platform.

[0008] Engine tests were conducted on the established integrated verification platform.

[0009] According to the present invention, an integrated verification method for a hydrogen micro-mixing combustion chamber is provided, wherein the lubricating oil system includes an oil tank, an oil outlet pipe, and an oil return pipe. One end of the oil outlet pipe is connected to the oil outlet of the oil tank, and the other end is connected to the lubrication cavity of the engine bearing. One end of the oil return pipe is connected to the lubrication cavity of the engine bearing, and the other end is connected to the oil inlet of the oil tank.

[0010] According to the integrated verification method of hydrogen micro-mixing combustion chamber provided by the present invention, if the performance of the lubricating oil system is found to be unsatisfactory during engine testing, the lubricating oil system is redesigned and the engine test is conducted again.

[0011] If the operating characteristics of the engine under the control of the control system are inconsistent with those of an aviation kerosene turbine engine, then the control system shall be redesigned.

[0012] According to the present invention, a hydrogen micro-mixing combustion chamber integrated verification method is provided, wherein the various test points on the engine include: the inlet and outlet of the fan, the inlet and outlet of the combustion chamber, the inlet and outlet of the compressor, the inlet and outlet of the turbine, and the inlet and outlet of the nozzle, and temperature sensors and pressure sensors are arranged at each of the test points.

[0013] According to the integrated verification method of hydrogen micro-mixing combustion chamber provided by the present invention, each test point on the engine further includes the pollutant emission port of the combustion chamber and the pollutant emission port of the nozzle.

[0014] According to the integrated verification method of hydrogen micro-mixing combustion chamber provided by the present invention, when the outlet temperature of the nozzle is greater than or equal to 1500K, the control system controls the engine to stop running; in the event of detonation and flame ejection in the engine, the control system controls the engine to stop running based on a stop signal input by the user.

[0015] According to the present invention, an integrated verification method for a hydrogen micro-mixing combustion chamber is provided. The hydrogen supply system includes a hydrogen cylinder and a supply pipe. The inlet of the supply pipe is connected to the hydrogen cylinder, and the outlet of the supply pipe has multiple branch pipes. Each branch pipe is connected to the hydrogen inlet of the combustion chamber. A flow meter, a servo valve, a check valve, a one-way valve, and a flame arrester are installed on the supply pipe.

[0016] According to the hydrogen micro-mixing combustion chamber integrated verification method provided by the present invention, engine testing on the assembled integrated verification platform specifically includes:

[0017] The control system controls the motor to rotate the engine rotor based on the start signal, and controls the ignition system to ignite. After successful ignition, the hydrogen supply system is controlled to supply hydrogen to the combustion chamber, so that the engine starts to accelerate under the action of hydrogen and motor. When the rotor speed of the engine reaches a preset value, the motor is controlled to shut off, and the engine continues to accelerate to idle speed under the action of hydrogen alone. The test data obtained in each process are recorded.

[0018] According to the present invention, an integrated verification method for a hydrogen micro-mixing combustion chamber is provided, which controls the gas supply of the hydrogen supply system based on the control signal of the control system to achieve the acceleration and deceleration of the engine.

[0019] The hydrogen micro-mixing combustion chamber integrated verification method provided by the present invention further includes:

[0020] After the engine test is completed, the test system, the lubricating oil system, the ignition system and the control system are packaged to form engine test software.

[0021] The hydrogen micro-mixing combustor integrated verification method provided by this invention designs the combustor, testing system, lubricating oil system, hydrogen supply system, ignition system, and control system before building the integrated verification platform. This ensures safety and reliability, realistically simulates the operating environment of the hydrogen micro-mixing combustor, and enables the testing of hydrogen-fueled engines. This allows for engine development at minimal cost and fulfills the verification requirements of the entire engine. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating the integrated verification method for hydrogen micro-mixing combustion chambers provided by the present invention.

[0024] Figure 2 This is a schematic diagram of the hydrogen supply system provided by the present invention. Attached Figure Description

[0026] 10. Gas supply pipe; 20. Flow meter; 30. Check valve; 40. Servo valve. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] The following is combined Figures 1-2 The present invention describes the integrated verification method for hydrogen micro-mixing combustion chamber.

[0029] like Figure 1 As shown, this invention provides an integrated verification method for a hydrogen micro-mixing combustion chamber, comprising:

[0030] Step 110: Design the combustion chamber according to the engine's performance requirements and size constraints; design the location and leads of each test point on the engine to facilitate the installation of the test system; design the lubrication system to improve the life of the engine bearings; and design the hydrogen supply system and ignition system based on the characteristics of hydrogen. Step 120: Assemble the designed combustion chamber, test system, lubrication system, hydrogen supply system, and ignition system together and design the control system to build an integrated verification platform. Step 130: Conduct engine tests on the built integrated verification platform.

[0031] The design of the combustion chamber based on the engine's performance requirements and dimensional constraints includes: designing the overall combustion chamber scheme based on these requirements; and refining the combustion chamber structure based on the overall design. During the overall combustion chamber design phase, optimization designs for the micro-mixing head, flame tube cooling, main combustion orifice, and mixing orifice are carried out simultaneously to ensure that combustion chamber performance parameters such as pressure loss, combustion efficiency, and outlet temperature distribution coefficient meet requirements. The refinement of the combustion chamber structure includes the design of the connection structure between the combustion chamber and the compressor, the connection structure between the combustion chamber and the turbine, the design of the hydrogen pipeline on the combustion chamber, the material selection design for the combustion chamber, the tolerance design of components, and the connection design of assemblies. A three-dimensional model is created during the refinement of the combustion chamber structure to facilitate adjustments and simulations, improving design efficiency.

[0032] The location and wiring of various test points on the engine are designed to facilitate the deployment of the test system for collecting relevant information. The engine includes a fan, combustion chamber, compressor, turbine, and nozzle. The fan is installed at the front of the combustion chamber and connects to the combustion chamber's intake via the compressor, thus providing compressed air to the combustion chamber through the cooperation of the fan and compressor. The turbine is installed at the combustion chamber outlet, and the nozzle is installed at the turbine outlet. Key performance parameters and failure mode-related parameters are selected as test objects. Specifically, the test objects in this embodiment include temperature, pressure, and pollutant emissions. The location of the test points reflects the engine's operating state and performance; therefore, test points are set at key components such as the engine's fan, compressor, combustion chamber, turbine, and nozzle. The test system includes test points at the inlet and outlet of the fan, combustion chamber, compressor, turbine, and nozzle. The test points also include combustion chamber pollutant emission test points and nozzle pollutant emission test points to facilitate the detection of whether the pollutant emissions from the combustion chamber and nozzle meet emission standards.

[0033] To ensure accurate and stable transmission of collected information, the lead wire material, routing location, and fixing method all need to be designed. Lead wires should be made of materials with good conductivity, high temperature resistance, and corrosion resistance, such as copper, silver, or nickel-chromium alloys. Lead wires should avoid the connection gaps of various accessories in the engine, and the wiring should be as short and straight as possible to reduce signal attenuation and interference. The lead wire fixing method should ensure that the lead wires will not loosen or break due to vibration or impact during engine operation; welding, crimping, or plug-in methods can be used for secure fixing.

[0034] Lubricating oil systems can employ either a circulating or non-circulating method.

[0035] The hydrogen supply system design includes storage device design, pressure reducing device design, flow control design, and safety protection device design. Specifically, hydrogen is typically stored in high-pressure gaseous or liquid form, and the storage device uses a well-sealed hydrogen cylinder. The pressure reducing device reduces the pressure of the high-pressure hydrogen to the pressure range required by the engine; for this purpose, a pressure reducing valve is installed on the hydrogen cylinder's supply pipe 10. In the flow control design, a flow meter 20 and a servo valve 40 are installed on the hydrogen cylinder's supply pipe 10 for flow control. A check valve 30, a flame arrestor valve, and a one-way valve are also installed on the hydrogen cylinder's supply pipe 10 as safety protection devices.

[0036] The ignition system design includes the selection of the igniter, the design of the ignition location, and the design of the ignition fuel. Specifically, hydrogen has a low ignition energy and a fast combustion rate; therefore, the ignition system needs to provide sufficient energy to ignite the hydrogen and precisely control the ignition process to ensure combustion stability. Optionally, a spark plug can be used for the ignition system, and propane can be used as the ignition fuel. In use, hydrogen should only be supplied after successful propane ignition.

[0037] The entire engine is fixed to a test bench, which in turn is fixed to the ground, thus supporting the engine. Understandably, the test bench is versatile and can be matched with different engines. The control system is connected to the testing system, hydrogen supply system, lubrication system, igniter, and engine. The control system is responsible for monitoring and controlling various engine parameters to ensure safe and stable engine operation. The control system design includes both hardware and software design. The hardware design includes a controller, various sensors, and actuators. The sensors are deployed according to the designed testing system, and the sensors and actuators are connected to the controller. The software program is integrated within the controller, including detection programs, fault diagnosis and display, and protection programs.

[0038] The pre-designed combustion chamber, testing system, lubrication system, hydrogen supply system, and ignition system are assembled together, ensuring a tight, leak-proof connection between all components. Specifically, the testing system is installed at pre-designed test points and connected by pre-designed leads to monitor the temperature and pressure at the boundaries between engine components. This allows for real-time monitoring of the engine's internal temperature and performance, ensuring the engine operates within its limits. During assembly, the electric motor is installed at the front of the engine to assist in starting. The turbine is installed at the combustion chamber outlet, and the nozzle is installed at the turbine outlet. The hydrogen supply system is connected to the combustion chamber to provide hydrogen as fuel. The lubrication system provides lubricating oil to the engine bearings, and the igniter ignites the fuel within the combustion chamber. This forms an integrated verification platform. Engine tests are then conducted on this platform, simulating the engine's start-up, low-speed, acceleration, high-speed, and shutdown processes. The control system controls the engine's operating parameters and receives real-time data from the testing system to confirm the engine's operating characteristics.

[0039] The hydrogen micro-mixed combustion chamber integrated verification method provided in this invention designs the combustion chamber, testing system, lubricating oil system, hydrogen supply system, ignition system, and control system before building the integrated verification platform. This ensures safety and reliability, realistically simulates the operating environment of the hydrogen micro-mixed combustion chamber, and enables the testing of hydrogen-fueled engines. This allows for engine development at minimal cost and fulfills the verification requirements of the entire engine.

[0040] The lubrication system includes an oil tank, an oil outlet pipe, and an oil return pipe. One end of the oil outlet pipe is connected to the oil outlet of the oil tank, and the other end is connected to the lubrication chamber of the engine bearing. One end of the oil return pipe is connected to the lubrication chamber of the engine bearing, and the other end is connected to the oil inlet of the oil tank.

[0041] The oil tank contains lubricating oil, which flows along the oil outlet pipe into the engine bearings to lubricate them, reducing frictional heat generated during engine operation and extending the bearings' lifespan. The lubricating oil, after lubricating the bearings, returns to the oil tank along the return pipe, achieving recycling. An oil supply pump is installed on the oil outlet pipe, and a return pump is installed on the return pipe. By controlling the operation of the oil supply and return pumps, the amount of lubricating oil in the engine bearings is adjusted, thereby controlling the temperature at the engine bearings.

[0042] If the performance of the lubricating oil system does not meet the requirements during engine testing, the lubricating oil system will be redesigned until it can circulate; if the engine's operating characteristics under the control of the control system are inconsistent with those of an aviation kerosene turbine engine, the control system will be redesigned.

[0043] During engine testing, the performance of the lubricating oil system, including lubrication, cooling, and sealing, is determined based on the test system's results. Taking cooling as an example, if the lubricating oil system's cooling effect meets the requirements, it indicates that the operation of both the oil supply and return pumps in the lubricating oil system is compatible with the engine's operation, and no adjustment to the lubricating oil system is needed. In this case, the designed lubricating oil system can be directly packaged into the engine testing software. If the lubricating oil system's cooling effect does not meet the requirements, it indicates that the operation of both the oil supply and return pumps in the lubricating oil system is incompatible with the engine's operation, and the lubricating oil system needs to be redesigned. After redesigning the lubricating oil system, the engine testing process is repeated to verify it until the lubricating oil system's cooling effect meets the requirements. The verification process for lubrication and sealing effects is similar to that for cooling. Therefore, through engine testing, the lubricating oil system can be adjusted until its cooling, lubrication, and sealing effects all meet the requirements.

[0044] During engine testing, operating commands are input into the control system, and the engine's operating characteristics under different operating conditions are determined based on the engine's output data. If the engine's operating characteristics are found to be inconsistent with those of an aviation fuel turbine engine, the control system is redesigned. After the control system is redesigned, engine testing is conducted again. This process is repeated multiple times until the engine's operating characteristics, under the control of the latest control system, are consistent with those of an aviation fuel turbine engine. At this point, the control system is considered validated and is encapsulated in the engine test software.

[0045] In one embodiment, if the nozzle exit temperature is greater than or equal to 1500K, the control system automatically stops the engine and suspends the test. Specifically, a temperature sensor is installed at the nozzle exit, and the control system is communicatively connected to the temperature sensor. Based on the temperature information collected by the temperature sensor, the control system automatically monitors the system, thereby ensuring test safety and reducing the risk of test runs.

[0046] In the event of engine detonation or flame ejection, the control system will stop the engine based on a user-inputted stop command to interrupt the test. During the test, if the operator observes engine detonation or flame ejection, they can input a stop command via the emergency stop button or other input device. The control system will then stop the engine based on the user-inputted stop command, thereby reducing the risk of engine failure during the test.

[0047] like Figure 2 As shown, the hydrogen supply system includes a hydrogen cylinder and a supply pipe 10. The inlet of the supply pipe 10 is connected to the hydrogen cylinder, and the outlet of the supply pipe 10 has multiple branch pipes, each of which is connected to the hydrogen inlet of the combustion chamber.

[0048] like Figure 2 As shown, the gas outlet is connected to an annular pipe, and multiple branch pipes are installed on the annular pipe. Each branch pipe is connected to a hydrogen inlet, thereby supplying gas evenly to all parts of the combustion chamber through multiple branch pipes, avoiding excessive hydrogen concentration in any part of the combustion chamber.

[0049] Based on the above embodiment, a flow meter 20, a servo valve 40, a check valve 30, a one-way valve, and a flame arrester are installed on the gas supply pipe 10. The servo valve 40 controls the opening of the gas supply pipe 10, thereby regulating the hydrogen flow rate. The flow meter 20 is used to detect the hydrogen flow rate to provide flow control parameters for the hydrogen supply. The check valve 30 and the one-way valve work together to prevent reverse hydrogen flow, and the flame arrester prevents the high-temperature flame in the combustion chamber from entering the hydrogen cylinder along the gas supply pipe 10, providing safety protection for the hydrogen cylinder.

[0050] The engine test on the established integrated verification platform specifically includes: controlling the motor to rotate the engine rotor based on the start signal of the control system, and controlling the ignition system to ignite. After successful ignition, the hydrogen supply system is controlled to deliver hydrogen to the combustion chamber, so that the engine begins to accelerate under the action of hydrogen and motor. When the engine rotor speed reaches the preset value, the motor is controlled to shut off, and the engine continues to accelerate to idle speed under the action of hydrogen alone. The test data acquired by the test system during each process is recorded.

[0051] Specifically, the ignition system uses spark plugs for ignition and propane as the ignition fuel. During ignition, the motor starts based on a start signal and rotates the engine rotor at a high speed to expel residual gases from the engine. The motor is then controlled to rotate the rotor at fluctuating speeds, for example, 2000-4000 rpm. At this time, the propane control solenoid valve is energized and opens, and the spark plug is simultaneously energized. The spark from the spark plug ignites the propane. If the inlet temperature in the combustion chamber rises to a preset value, it indicates successful ignition. After successful ignition, the servo valve 40 on the gas supply pipe 10 opens, introducing hydrogen into the combustion chamber. The preset value can be 10°C; if the inlet temperature of the combustion chamber rises by 10°C, it indicates successful ignition. During ignition, the motor adjusts its operating power according to the actual rotor speed of the engine.

[0052] After successful ignition, the control system gradually opens servo valve 40. Once the hydrogen is ignited, the propane solenoid valve closes. At this point, the engine begins to accelerate under the combined action of hydrogen and the electric motor. Once the engine rotor accelerates to a preset value, the electric motor shuts off. Optionally, the preset value is 30,000 rpm. Of course, other values ​​are also possible. It should be noted that the engine rotor acceleration rate during electric motor operation is controlled by the motor. Slow acceleration results in a rapid temperature rise, and vice versa. Therefore, temperature can be used as a reference to adjust the acceleration rate. For example, the acceleration rate can be adjusted at 20°C / 1000 rpm. After the electric motor shuts off, the engine accelerates only under the influence of hydrogen until idling. The control system collects test data during ignition, low speed, acceleration, and idling.

[0053] The control signals from the control system control the amount of hydrogen supplied to the hydrogen supply system to achieve engine acceleration and deceleration. Specifically, the control signals from the control system control the opening of the servo valve 40 to adjust the flow rate of hydrogen entering the combustion chamber.

[0054] The control system has an operating interface with a throttle lever button. Pressing the throttle lever button increases the hydrogen flow to the engine, providing greater engine speed and thrust. When the engine needs to be stopped, pressing the throttle lever button decreases the hydrogen flow until the engine stops.

[0055] In one specific embodiment, the hydrogen micro-hybrid combustion chamber integration verification method further includes: after the engine test is completed, the lubricating oil system, ignition system, control system and test steps are packaged to form engine test software.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated verification method for a hydrogen micro-mixing combustion chamber, characterized in that, The verification method includes: The combustion chamber is designed according to the engine's performance requirements and size constraints; the location and lead wires of each test point on the engine are designed to facilitate the installation of the test system; the lubrication system is designed to improve the life of the engine bearings; and the hydrogen supply system and ignition system are designed according to the characteristics of hydrogen. The designed combustion chamber, testing system, lubricating oil system, hydrogen supply system and ignition system are assembled together, and a control system is designed to build an integrated verification platform. Engine testing was conducted on the established integrated verification platform, specifically including: controlling the motor to rotate the engine rotor based on the start signal of the control system, and controlling the ignition system to ignite; after successful ignition, controlling the hydrogen supply system to deliver hydrogen to the combustion chamber, so that the engine begins to accelerate under the action of hydrogen and motor; when the rotor speed of the engine reaches a preset value, controlling the motor to shut down, and controlling the engine to continue accelerating to idle speed under the action of hydrogen alone, and recording the test data obtained in each process; If the performance of the lubricating oil system is found to be unsatisfactory during engine testing, the lubricating oil system will be redesigned and the engine test will be conducted again. If the operating characteristics of the engine under the control of the control system are inconsistent with those of the aviation kerosene turbine engine, the control system shall be redesigned and the engine test shall be repeated until the operating characteristics of the engine are consistent with those of the aviation kerosene turbine engine.

2. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 1, characterized in that, The lubricating oil system includes an oil tank, an oil outlet pipe, and an oil return pipe. One end of the oil outlet pipe is connected to the oil outlet of the oil tank, and the other end is connected to the lubrication chamber of the engine bearing. One end of the oil return pipe is connected to the lubrication chamber of the engine bearing, and the other end is connected to the oil inlet of the oil tank.

3. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 1, characterized in that, The various test points on the engine include: the inlet and outlet of the fan, the inlet and outlet of the combustion chamber, the inlet and outlet of the compressor, the inlet and outlet of the turbine, and the inlet and outlet of the nozzle. Temperature sensors and pressure sensors are installed at each of the test points.

4. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 3, characterized in that, The various test points on the engine also include the pollutant discharge port of the combustion chamber and the pollutant discharge port of the nozzle.

5. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 3, characterized in that, When the nozzle outlet temperature is greater than or equal to 1500K, the control system controls the engine to stop running; in the event of engine detonation and flame ejection, the control system controls the engine to stop running based on a stop signal input by the user.

6. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 1, characterized in that, The hydrogen supply system includes a hydrogen cylinder and a supply pipe. The inlet of the supply pipe is connected to the hydrogen cylinder, and the outlet of the supply pipe has multiple branch pipes. Each branch pipe is connected to the hydrogen inlet of the combustion chamber. The supply pipe is equipped with a flow meter, a servo valve, a check valve, a one-way valve, and a flame arrestor valve.

7. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 6, characterized in that, The control signal from the control system controls the amount of hydrogen supplied to the hydrogen supply system to achieve the acceleration and deceleration of the engine.

8. The integrated verification method for hydrogen micro-mixing combustion chamber according to claim 6, characterized in that, Also includes: After the engine test is completed, the test system, the lubricating oil system, the ignition system and the control system are packaged to form engine test software.

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