Great Power Technology

"Combustion chamber temperature reading!"

"The current temperature of the combustion chamber is 1100K, the working condition of the combustion chamber is stable, no surge is found, and the operation is good!"

"Check combustion chamber pressure!"

"The combustion chamber pressure is lower than the design standard, and the load redundancy is 60%."

"Received, now conduct a regular speed change experiment and read the compressor characteristic parameters."

"The air flow, boost ratio, efficiency, and surge point calibration data have been obtained, please operate the speed change."

"Speed ​​change completed. Combustion group, synchronously monitor front gas and wall temperature data."

A series of passwords were circulated among the test team engineers. They were conducting comprehensive data monitoring on the engine. Everyone was nervously looking at the engine on the test bench, fearing that an accident would make all their hard work go to waste.

That was literally burned to the ground.

If anything goes wrong inside the engine, especially with the hot parts, even an outright explosion wouldn't be unusual.

But fortunately, this Qilian engine has always performed well.

Ye Zhou walked to the leader of the testing team and asked while looking at the data:

"Report to me the overall situation. Comparing it horizontally with the GE-9X next door, how is Qilian's data performance?"

"Reporting to Ye Gong, the two engines have not yet entered the load test, so there is not much performance difference. The data performance in all aspects is relatively stable. However, compared with the GE-9X, the Qilian has a hot component surge point. Less, and the vibration intensity of the fan blades is also lower.”

Ye Zhou nodded and continued to ask:

"When are thrust tests expected to begin?"

"Start immediately, Ye Gong, what is the target thrust set to?"

"Set it to 80. After reaching 80, conduct a comprehensive test of the engine status, and then restart the test to see if there can be a higher breakthrough on this basis."

"clear!"

Everyone waiting at the scene also heard Ye Zhou's words, and all of their faces showed a look of surprise.

80 tons of thrust means that, if it can be reached, the Qilian has surpassed the GE-9X in terms of thrust value.

Is this possible?

After all, the Qilian itself was copied according to the GE-9X drawings, so the theoretical performance data should not exceed the prototype.

However, from another perspective, the key heat-resistant components of the Qilian engine have been replaced with new materials. The high-temperature resistance of this material is more than 60% higher than that of the original titanium alloy material. In other words, the extreme situation Under this condition, the front gas temperature can be increased to nearly 1200K based on the current 2000K.

According to the basic rules of aviation engines, every time the front gas temperature increases by 100K, the thrust can increase by about 10 tons. If no other circumstances are considered, the ultimate thrust potential of this Qilian engine should be around 190 tons.

Of course, this is just an ideal model analysis, and the actual thrust is also affected by many factors such as bearing strength and blade strength.

But even if these effects are added, it seems that it is not difficult to increase the thrust by 10 tons?

Everyone looked at the display that recorded the thrust value. There was a series of inconspicuous numbers recording the current thrust.

19.79.

The current thrust has reached nearly 20 tons, which is only 10 tons away from the thrust target of CJ-1000AX.

The Qilian engine has not even started to exert force yet.

Two minutes later, the thrust test officially began.

The operator gradually pushes the joystick, fuel injection accelerates, and the temperature of the combustion chamber rises suddenly. The high-pressure air machine drives the bearings to move the turbine blades, and then transmits the power to the fan.

The engine's air intake roared with fierce air intake, and the thrust value steadily increased.

"The current thrust is 30 tons, the GE-9X thrust is 30 tons, and the data transmission has been established!"

The operator reported the situation loudly, and the data from the No. 2 test bench was transmitted to the central system and then projected onto another terminal display.

Of course, the current test team will not immediately conduct a comparative analysis of the detailed data of the two engines. They will only capture a part of the temperature, thrust, vibration and pressure data as a reference to evaluate whether the Qilian engine's operation is in a good range.

"The CJ-1000AX target of 30 tons has been exceeded. Will their project continue?"

"I guess not. After the Qilian, all high-thrust engines will be developed around the sedan project. If we do reverse engineering in the future, military small bypass ratio engines will also refer to the Qilian. I guess the turbofan 18 turbofan 20 projects also need to be restructured.”

"The sedan project will be very busy after that. 35 tons."

"It's not over yet. Now the temperature and pressure data are far away from the rated extreme values, and the fan blades are performing very well. Keep watching!"

As he spoke, the value on the screen had slowly increased to 40 tons, but under this thrust, neither the Qilian nor the GE-9X showed any abnormalities.

"GE-9X is still strong. This speed range should be the most commonly used speed. The performance in all aspects is almost perfect, there are very few surge points, and the blade tip vibration is almost negligible. This kind of processing technology is unacceptable."

"Then they have been doing it for decades. How dare they be called the number one in the world if they can't do this? Isn't it the same in Qilian? Now the data is perfect."

"Qilian should be perfect. No, why do I feel that my expectations are a bit too high?"

The colleague on the side smiled, and after a moment, replied:

"It's not just you, I am also the same. From the beginning of the test run, I felt that Qilian's performance may be much better than the design parameters we previously expected. 50 tons."

The thrust displayed on the screen had reached 50 tons, and Ye Zhou's heartbeat began to accelerate involuntarily.

50 tons.

This is a figure that the entire Chinese aviation industry has never broken through in decades, but today, it has been broken through by the sedan project team and Qilian Engine.

From the first generation of aero engines to the 50-ton thrust engine, it took the West nearly 40 years.

Although they were stepping on other people's shoulders, it only took them 7 months to achieve this level. Isn't it a huge success?

"Continue to increase power. Are the data normal?"

Ye Zhou's eyes could no longer see the chaotic data on the screen, but after he asked his question, all the monitoring personnel paid attention to reporting to him.

"The temperature is normal!"

"Surge point is normal!"

"The pressure is normal! The internal structure is normal!"

"The air intake is normal!"

"The nozzle and wall temperatures are normal!"

everything is normal.

Under the working condition of 50 tons of thrust, the performance of the Qilian engine cannot even be described as perfect, but rather, impeccable.

The number on the screen was still slowly climbing, and the rate at which it was climbing was not fluctuating at all.

Push the lever and the number immediately goes up.

At a certain moment, the operator even doubted that if he pushed the operating lever directly to the end, would the thrust of the Qilian engine immediately and smoothly soar to a height that no one could imagine?

"How much redundant load is there now?"

"The pressure is 50% and the temperature is 50%, but we can't test it to the ultimate load. It's too dangerous. We have to reserve 20% redundancy."

As he spoke, the operator continued to push the operating lever.

Thrust value increased to 60.

The thrust of the GE-9X also reaches 60, but compared with the Qilian, its thrust climbing speed has begun to decline.

"GE-9X is approaching its limit. Surge points have begun to increase and blade tip vibration has accelerated. The strength of titanium alloy materials is still not as good as our new materials."

"Qilian has also begun to experience surge points. But the range is still controllable. It feels similar to the performance of GE-9X under 30 tons of thrust."

"Indeed. It should be due to the addition of materials. We don't surpass them in terms of craftsmanship."

"It seems that Ye Gong has grasped the main contradiction correctly. It's 70 tons, damn, the GE-9X is going to die."

As he spoke, all the data transmitted by GE-9X had given alarms. The temperature and pressure were close to the warning line, and the vibration had reached the danger zone. Ye Zhou urgently stopped the test run on the test bench next door.

But at this time, no one cared about the GE-9X test run situation.

Because Qilian has broken through to a completely new field.

The thrust is 76 tons and is rising steadily.

The operator looked back at Ye Zhou and asked:

"Gong Ye, we have reached the target value soon. Do we still need to continue to use afterburner? At present, the engine performance is normal, and it doesn't feel like it is exerting any force."

"Continue to increase the power and reach 100 tons!"

The operator nodded, picked up the phone at hand, notified the emergency response team to prepare, and then continued to push the operating lever slowly but firmly.

80 tons.

Qilian easily crossed this boundary, and various data began to fluctuate, but it was still within the green threshold.

90 tons.

The temperature and pressure redundancy is all less than 35%, the numerical fluctuation range increases, and the engine working state begins to change. The first problem is the air inlet. According to the 70-ton thrust design of GE-9X, Qilian’s tapered air inlet The mouth is a little too narrow, and the thrust increase speed begins to slow down.

100 tons.

The monitoring data fluctuated violently, the redundancy dropped to 27%, the fan blades began to vibrate beyond the green threshold, and other accessories that were not designed globally began to seriously drag down the powerful core thermal components.

108 tons.

The data crossed the orange threshold, and surge points were spread throughout the engine. The operator looked at Ye Zhou, who pondered for a moment and said:

"Push it to 110 tons, enter the red zone for 30 seconds, and conduct an extreme test."

"clear!"

The operator increased the speed of pushing the operating lever, and within 1 minute, the engine thrust soared to 118 tons.

Subsequently, with the alarm light flashing wildly, the operator suddenly pulled the emergency stop linkage. Without his operation, the test bench immediately began to reduce the fuel supply and cut off some dangerous pipeline loops according to the predetermined procedure, and the thrust value dropped rapidly.

After 10 minutes, the Qilian engine returned to idling.

"Check engine data!"

"normal!"

"normal!"

A series of responses sounded, and everyone present looked at Ye Zhou.

After the extreme value test, the performance of the engine is still normal when it returns to the idle state. Then, the reliability of this engine has been verified.

Ye Zhou's heartbeat suddenly skipped several beats. He looked at the real-time statistical data handed over by the operator in a daze and said:

"I announce that the thrust test is over. The Qilian engine has a safe working thrust of 90 tons and a peak thrust of .121 tons."

Two hours later, the latest test data was delivered to the small red house.

A group of scientific researchers and key personnel of the Nantianmen project team have already gathered there.

They looked at the huge number projected on the screen with different expressions on their faces.

After a long time, a man in a navy uniform stood up, waved his arm violently, and said:

"Fuck! Give Ye Zhou a fucking medal!"

Today I am taking a break, so I will update two more chapters.

There may be fluctuations in the update next week. Fluctuation means more and less every day, but it is still guaranteed to be 10,000 words every day.

Because I want to modify the content of the previous chapters.

As for the reason, don't ask.

Anyway, you can read it again when the changes are made, which is equivalent to giving me a copy for free. No need to spend money.