C1139 Major Malfunctions after Ignition
"President Qin, you have come at the right time." Elder Wu was currently directing the preparations in front of the ignition test car. When he heard Qin Guan's arrival, he was very happy and immediately ran over.
Qin Guan looked at the engine on the test drive and his face was also filled with joy. "Our progress is not bad."
It would take a long time to research an engine. The F110 of Y Country came from the F101, while the F101 came from the F101. It could be said that it took decades for it to mature.
Now that they had directly started the F110 engine, they naturally stood on the shoulders of the giant. They already had the full set of technical data for the F110, which was equivalent to the highest level of imitation. It was the same as introducing Spey technology to produce Spey Engine.
However, the Spey was personally taught by the people in Cattle Country. It was the form of a teacher taking care of a disciple. The new Third-generation Engine was equivalent to a student reading a book and learning by himself.
"Yes, we know that the gap in our country is very big. Especially our J-10 Fighter, it has already started to use the Spey to change its shape. We have sent a small number of troops, but after all, the propulsion of the engine of this aircraft is not that great. It has severely limited the performance of the aircraft. We urgently need the advanced Third-generation Engine. " Elder Wu said.
A double engine J-11 could still be used to make do with a modified Spey. After all, its prototype power was not enough. However, the design of its variable wings was very good.
However, the J-10 was different. Its maximum thrust was only 11. A 5 ton Spey modification could not meet the requirements of the J-10. What the J-10 needed was a maximum force of at least 12 tons.
They urgently needed a new engine to be changed. Now, the 4430 factory was also constantly researching and developing the engine day and night.
Once the experiment on the Core Fighter was completed and there were no problems, it would be much easier to develop the Turbofan Engine.
"That's right. Other than our fighter jets needing advanced engines, our passenger planes also need it." Qin Guan said.
Now, the passenger planes also urgently needed advanced engines. Shipping Ten relied on imported engines to test the flight, and the Civil Aviation Department was not satisfied with it. The side passenger plane developed by the Hans also needed advanced engines. It could be said that other than the fighter engine of Little Han, the passenger plane engine of the Great Hando Competition was also imminent.
"So we're going to wear the stars and moon and try to make it in the shortest time possible" Elder Wu said.
As he spoke, an assistant reported, "The lubricant has been added. The fuel pump is ready to start. It can be turned on at any time."
"Ignite!" Elder Wu said.
Following Elder Wu's order, they heard the shrill cry of the turbine. Under the driving force of the engine, the Core Fighter spun rapidly. When the turbine reached its maximum speed, the fuel began to spray into the combustion room. Under the ignition of the spark plugs, it produced high-temperature and high-pressure gas. It pushed the turbine leaves behind it to rotate.
Scorching flames spurted out from the tail, forming a beautiful flame. Looking at the flame, Qin Guan's face was full of joy. "The ignition was successful?"
"Slow car state." Elder Wu said and nodded vigorously.
An engine Core Fighter should at least be able to be lit first.
After the research and development of the Spey's imitation and the modified Spey, Elder Wu's team had a clear understanding of how to develop the engine. Elder Wu was also very excited about the normal start of the engine.
Next, it was time to test the engine. All kinds of work was normal under all kinds of speeds. If the test car could pass the test of endurance, then the Core Fighter would be considered to have been successfully developed.
"Bang." At this moment, the engine on the test bench suddenly made a sound. Following this sound, the outer shell of the engine broke, and a piece of debris flew directly to the ceiling.
The Elementary Scholar beside Qin Guan came up with quick steps and immediately protected Qin Guan. He looked at the engine on the test bench and saw that the engine was already on fire.
This was too embarrassing, wasn't it?
The person beside him carried a fire extinguisher and rushed forward, wanting to extinguish the flames on the engine. The roaring sound of the engine gradually disappeared and it had already stopped.
No one would have thought that after testing the engine, in just a few minutes, there would be a major malfunction.
What malfunction?
"The engine pressure leaf is broken." Elder Wu said. Although he had yet to disassemble the engine, just by looking at the situation, he already knew it.
The high-speed spinning leaf broke like a knife, hitting the outer shell of the engine and shattering the outer shell of the engine. If it flew to his side, someone might be cut into two pieces.
When the engine stopped spinning, Elder Wu had already rushed over. Looking at the pressure leaf in front of him, he saw that there were already three pieces of broken leaf. The rest that were not broken also had obvious cracks.
Looking at these leaves, Elder Wu's face was full of shame. "It seems that the compressor leaves that we used Spey to process are not enough to satisfy the requirements."2
Back then, when the technology was introduced to produce the Spey Engine, an important obstacle was the production of the pressure leaves. In China, it was still the refinement process, but overseas, it had already been refined. At that time, for the sake of these techniques, Qin Guan brought everyone to the Rolo Company to negotiate. And with the help of the quality manager of the other side's leaf workshop, Robert, he was able to master this technique.
This was merely a technique from the 60s of Western World. It wouldn't be a problem to use it on the Spey, but when it was used on the newly developed Third-generation Engine's Core Fighter, it showed its drawbacks.
Just the first test car, all the leaves were broken!
"I've said it before. If we want to build the engine of this third-generation machine, we can only use titanium alloy. We can't use the special alloy of the Spey Engine to compress the air. That strength is not enough." At this time, Robert's voice sounded.
Robert was already used to life here. He gave up everything in Rolo Company and came to Han Country. He joined the research team of the 4430 factories. Everyone also attached great importance to him.
Robert was in charge of the leaf technology. Now that there was a problem with the leaf, it was naturally his responsibility. If he looked for the reason in detail, it was because the material used for the leaf was not qualified.
It had to be titanium alloy!
"Other than titanium alloy, we also need to improve the processing process. We absolutely can't use solid leaves anymore. The solid fans' leaves are heavy. The centrifugal force is great, the vibration and vibration problems are prominent, and we can't satisfy the requirements. Now, the Rolo Company had already started the second generation of the titanium alloy hollow fans' leaves. We can't continue to waste time on this solid leaf."
"The first generation of the Rolo Company's broad-chord hollow fan leaf is connected to a honeycomb inside the titanium plate in the shape of two hot leaves using an active or liquid diffusion welding method, forming a complete leaf in the shape of a sandwich. The second generation hollow leaf was made using advanced super molding and diffusion connection technology. The core used Warren structure to replace the original honeycomb structure. The advantage was that the structure was good overall. All the connecting interfaces are spread and connected into a whole. The weight of the leaf is lighter, and the cost is lower. "
"But we don't have the processing equipment that we need." We don't have the processing equipment, Elder Wu said.
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