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After that, Wang Bin, Professor Zha and the others soon came to a special house not far from the test bench of the workshop, which was all made of special glass made by Wang Bin and his Tiangong Technology. If someone looked carefully, they would find that, This house is made of special glass of Tiangong Technology, and the thickness of each piece of glass reaches 30 mm thick.

It can be seen from this that the defense of this room is actually for the safety of the workers in the workshop. After all, this is a test run of an aero-engine, and if any accident occurs, it will be very fatal.

Let's not talk about other things, just take the various blades of the aero-engine as an example. Since the speed of the engine is very fast during the test run, the centrifugal force generated is also very large. Once the blade falls off, the damage caused It is very scary. Once you encounter people, the result is self-evident, let alone other accidents.

When everyone entered the room, the doors of the room also began to close automatically, and at the same time, various facilities in the room also began to operate automatically, such as the exhaust and ventilation systems.

In addition, on the glass facing the front of the test bench, a trace of light also began to shine, and at the same time, various lines appeared around the engine, as well as the current state data of the engine and so on.

That's right, the piece of glass facing the engine is not just a piece of transparent glass, in fact, there is a large transparent display screen sandwiched in the middle of this glass, a large ultra-thin transparent display screen manufactured by Qin's Industry Screen.

Of course, the glass of this display is still made by Wang Bin and Tianyuan Optics, a subsidiary of Tiangong Technology, and the display technology is Qin's own technology.

It didn't take long for all the equipment in the room to start up. At the same time, with the help of electric equipment, the various windows in the test workshop began to close and a cover was put on.

In the end, the lights in the workshop also began to dim, and soon the workshop became very dim. However, due to the dimming of the workshop, the various data and lines on the transparent glass in front of Wang Bin's room did not appear. It became extremely clear.

"Mr. Wang! Can we start the test run?" Just as Wang Bin was looking at the data on the glass in front of him, Professor Pok asked Wang Bin.

"Let's get started!" Wang Bin nodded to Professor Po and said!

After hearing Wang Bin's words, Professor Zha said to the controller beside him, "Xiao Jia! Start the test drive!"

"Okay! Poke the professor!" After speaking, the young man named Xiao Jia immediately pressed the button to start the test drive.

Following Xiao Jia's movements, the engine on the test bench started slowly.

Of course, since all the professionals present except Wang Bin naturally knew that the engine was not rotating by itself, but the power equipment on the test bench was driving the engine to rotate, accelerating the engine to a certain speed, for the engine to ignite.

As time passed, the speed of the engine on the test bench gradually increased, and at the same time, there was no abnormal data in the detection data of the display screen.

At this time, several young test drivers who were really observing the engine data began to report on the test conditions.

"The test run started normally, and the engine turned normally."

"Engine rotation data is normal!"

"Engine vibration data is normal!"

"...normal!"

"...normal!"

According to the test driver's report,

However, it is Wang Bin or Professor Poking and others, all of whom have very good faces. Although it is just a test drive to drive the test drive, there is no doubt that this is the first step to success. If even this step fails or there is a problem , then let’s not talk about it later, but fortunately, everything is normal now, which makes everyone breathe a sigh of relief.

"Start fuel input to test target."

Just after the report on the test bench, Professor Zha ordered again.

Although the sound of the engine test run is very loud, under normal circumstances, even if you are face to face, you may not be able to hear the other party's speech.

But it is different in this room. Since this room has been considered at the beginning of construction, although the sound of the engine can be heard in this room, it is not very loud.

"Fuel input is normal!"

"Target is working fine!"

"The target speed is normal!"

"Target internally normal!"

Following the report of the engine's running status, Professor Zha finally gave the order to ignite.

"ignition!"

"Understood! Light the fire!"

Following Professor Pok's order, the operator of the test bench immediately pressed the ignition switch, and the engine on the test bench immediately made a low-pitched whistling sound. It can already be heard in the strictly soundproofed room.

"Target enters idle state! Operation is normal!"

"The target speed is 20%, it is accelerating, and the speed is normal!"

"The target output power is 2%, and it is slowly increasing, and the power output is normal"

As the speed of the engine gradually increased, the output power of the engine soon reached 5% of the theoretical maximum output power, and began to maintain at this speed!

In this way, the engine was stably maintained at 5% of the thrust for about ten minutes, and after the professor found that there was no problem, he said again: "Increase the speed and enter the cruising working state."

"Yes!"

"..."

As the process of the test run was almost perfect, at this time, Wang Bin, Professor Po and others had smiles on their faces.

Although the first test run of the engine at this time is not over yet, no matter what, the fact that the engine test run has reached this point has proved that the design of this engine has no fatal flaws, at least it is feasible.

Of course, whether the specific performance of the engine can meet the design requirements will only be known after the subsequent test runs and more test runs in the future!

As the engine test items are carried out one by one, after a series of test runs, this test has finally reached the final test. If the final test items are normal, then today's test can be said to be perfect. The test is also a major test for the aero engine on the test bench.

Because the final test is the test of the maximum working state of the aero-engine, that is, the afterburning working state of the aircraft during flight, such a working state is a huge test for the state of each component of the aero-engine, and it can even be said to be a test. The limits of every part of the engine.

Of course, under the maximum working condition, the combustion temperature inside the engine will continue to rise until it reaches the limit that the engine can bear. At the same time, the pressure inside the engine will also reach the limit that the blades can bear. The professor said that the reason why the special high-temperature-resistant glass of Tiangong Technology cannot be used on turbine blades.

Although the special high-temperature-resistant glass of Tiangong Technology also has a very strong ability to withstand high temperature and high pressure, the high-pressure resistance under high temperature is not the professional attribute of this high-temperature-resistant special glass.

If it is still feasible to use special high-temperature-resistant glass under normal circumstances, that is, under the cruising state of the engine, then their special high-temperature-resistant glass will definitely not be able to withstand high temperature and pressure.

As the engine entered the maximum working state, the sound of the engine became more and more sharp. At the same time, Wang Bin and the others could clearly see the Mach rings one by one on the flames ejected by the engine.

At the same time, on the transparent display screen in front, the thrust of the engine is also rising rapidly, and soon exceeds the maximum thrust on the original drawing, which is the thrust of 120 kN, and finally stops at 130 On the maximum thrust of about 19,000 N.

However, just when Wang Bin and others were a little happy, thinking that the test run was about to be successfully completed, everyone suddenly discovered that there was a new change in the thrust data of the engine, that is, the thrust of the engine fluctuated greatly.

Seeing this situation, both Wang Bin himself and Professor Po and others felt nervous. Wang Bin, Professor Po and others knew something bad happened. There must be a problem inside the engine. Otherwise, the thrust of the engine would Certainly not the case.

So Professor Chi immediately said decisively and loudly: "Stop the car immediately!"

When the controller heard what Professor Chi said, he didn't dare to be careless at all, and immediately pressed the stop button. After the controller pressed the stop button, the flame behind the engine also disappeared, and at the same time, the sound of the engine began to appear changed.

After the controller pressed the stop button, it took five or six minutes for the engine to completely stop.

After the engine stopped, there was no sound in the control room for a long time. Even Professor Zha and the others lowered their heads, thinking about what went wrong in this test.

After all, this is the first test run of the first aero engine manufactured by Tiangong Technology, but now! Now that something went wrong during the first test run, one can imagine the mood of everyone in the control room.

Just when everyone was a little depressed, Professor Zha raised his head and said to the controller beside him, "Replay the video of the monitoring record of the last maximum power test during our test just now."

Following the words of Professor Pok, the picture of the engine’s maximum power test just now reappeared on the front transparent display screen, and at the same time, all the data of the engine also appeared on the display screen. At this time, everyone did not pay attention to the engine. Instead, he focused his gaze on the various test data on the display screen.

The time passed by one minute and one second, everything in front was very normal, and soon the screen reached about three minutes and sixteen seconds when the maximum output power test was started, which is about ten seconds before the thrust fluctuation occurred.

At this time, Professor Zhu found from the data on the screen that the temperature of the front bearing of the engine turbine had reached a very high level, far exceeding the normal maximum output power level.

Seeing this poked the professor's heart, he already had a rough judgment. This should be a problem with the engine's bearings or the cooling system.

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