bonanza

Chapter 835 The Biggest Difficulty
The little tiger raised his dirty little face.

Yang Dongsheng wiped her face for her, took the small shovel, grabbed the little tiger's little hand and turned it over, there were really two blisters on it.

"Does it hurt?" Yang Dongsheng asked.

"Yeah!" Little Tiger nodded.

"Do you still dig when it hurts?"

"Yeah!" The little tiger nodded seriously.

Women's obsession with diamonds really doesn't matter age.

"Your mother is also really good at taking care of other people's affairs, even if her daughter's hands are blistered, she doesn't care!"

Yang Dongsheng snorted dissatisfiedly, and brought up a small diamond again.

Looking at the thin smoke rising from the ground again, the little tiger's eyes widened.

Yang Dongsheng pulled it twice with a small shovel, revealing a diamond the size of an egg.

The little tiger rushed forward and hugged the diamond in his arms, rubbing his face against the diamond vigorously.

"Does your hand still hurt?" Yang Dongsheng asked.

"..." The little tiger ignored him.

Zhou Ying's handling is correct!

The plane landed in Shanghai, and Director Li came to pick it up.

The little tiger jumped into the car, with its two claws raised, and ran like a penguin.

Yang Dongsheng got into the same car as Director Li, "How is the Internet going?"

Director Li turned his head from the co-pilot and said, "The Internet Public Opinion Office has worked hard to guide, but it seems to have no effect. A little rational speech will be buried soon!"

Dongsheng Technology itself is the largest Internet company in the country, so this has no effect, and there are many reasons.

One is that Director Li and the others have no experience.

The method of controlling public opinion in the Internet age is different from that in the age of newspapers and television.

Many former big cows were eliminated in this process.

Second, the public is willing to believe.

The previous president Ren and his company repeatedly refuted rumors about the return of the Kirin chip.

The third is that it is not ruled out that someone is behind the scenes.

"Are we..."

Yang Dongsheng lowered his head and pondered for a while, "Since you can't guide, let's follow suit and blow it up. When the bubble bursts, the rumors will disappear!"

Yang Dongsheng did this, on the one hand, to muddy the water, just like what he did when he was on Yangma Street.

On the other hand, he also wanted to see what it would be like to go down to the core of the earth.

After the new year, the first day of work, accumulated a lot of work.

After Yang Dongsheng finished handling the work that needed to be dealt with immediately.

The vice presidents came to the door again with reports.

The joint machining center needs to purchase a large number of machine tools.

Yang Dongsheng discussed with Vice President Liang, who is in charge of the joint processing center, and finally cut the purchase amount by half, and promised to double the supply next year and the year after next.

Vice President Liang went out, and Vice President Wang came in.

Dongsheng Heavy Industry has the heaviest task this year, not to mention heavy production tasks, they also undertake heavy research and development tasks.

The first is the H-class gas turbine.

This is the top priority of Dongsheng Heavy Industry in the future, so there is no need for Yang Dongsheng to emphasize it.

The second is the fourth-generation high-thrust and small-bypass ratio aeroengine against the American F-119 engine.

According to the memory of Yang Dongsheng's previous life, and the information he currently has.

The turbofan-119, which is a benchmark against the F-15 undertaken by the relevant institute, has not progressed very smoothly.

This is an opportunity for Dongsheng Heavy Industry.

Moreover, based on their previous experience, based on a new small bypass ratio high thrust aeroengine, small bypass ratio medium thrust aeroengines, new aeroderivative gas turbines, and new high bypass ratio aeroengines can also be derived. engine.

Dongsheng Heavy Industry's "Pearl River" aeroderivative gas turbine is actually General Electric's LM-2500, and its core engine is the same as General Electric's F-110 aeroengine.

This core machine was developed in the 60s, and its potential has been squeezed out.

When Tongtong Electric developed the new generation of LM-2500+ and LM-2500+G4 gas turbines, it started to add zero-stage compressors in front of the original compressors, as well as the blade shape and The material is adjusted.

This is equivalent to changing the original design.

Our country's large military aircraft Yun-20 has come out ahead of schedule, and the large civil aviation aircraft C-919 should not be far away.

Dongsheng Heavy Industry is tossing behind General Electric, and will never beat General Electric.

The only way out is to start from scratch and develop a new generation of core machines.

It is also time for General Electric to give up its throne. In the past few decades, General Electric has lived too comfortably.

In addition, Dongsheng Heavy Industry is also developing a 1500-kilowatt-class turboshaft engine.

In the previous life, due to the XX PT-6 engine of Pratt & Whitney, the power of the turboshaft-9 engine developed by our country was insufficient. As a result, when the Wuzhi-10 was equipped with troops, it had to be equipped with a simplified configuration, and the aircraft did not even have basic armor.

Yang Dongsheng aimed at the market vacated after the PT-6 engine was embargoed.

A turboshaft engine of this power level can also be used for the Zhi-20 general-purpose helicopter.

According to the experience of other companies, turboprop engines can also be developed based on the core engine of the turboshaft engine.

Pratt & Whitney PT-6 series engines are divided into PT-6A turboprop engine and PT-6B turboshaft engine.

According to Yang Dongsheng's memory, our country's Yun-8 medium-sized transport aircraft is already old, and the country has long wanted to develop a new type of medium-sized transport aircraft, that is, the Yun-9 to replace the Yun-8.

Even if there is a change in this life, at least the engine will be replaced for the existing Yun-8.

There is a market, it depends on whether they can seize the opportunity.

Yang Dongsheng frowned, "Where is the biggest difficulty?"

If someone else asked this question, Vice President Wang would definitely use an official tone, saying that everything was difficult.

But facing Yang Dongsheng, he didn't dare to use an official accent.

"The biggest difficulty must be the turbine, especially the high-pressure turbine of the aero-engine!"

The structure of the turbofan engine is no secret, the basic structure is the same.

Take the current mainstream twin-rotor aeroengine as an example-F-110, F-119, WS-10, and WS-15 are all twin-rotor engines.

From front to back, there are fans, low-pressure compressors, and high-pressure compressors in sequence.

This part is equivalent to an "axial flow compressor", which sucks in air and compresses it.

Behind the compressor is the combustion chamber, where the engine injects fuel, mixes it with compressed air, and burns it to generate high-temperature, high-pressure gas, which drives the high-pressure turbine and low-pressure turbine behind it.

The high-pressure turbine and the high-pressure compressor are on the same main shaft, and the high-pressure turbine drives the high-pressure compressor to rotate. They are a rotor.

The combination of high-pressure compressor, combustion chamber and high-pressure turbine is what is commonly referred to as the core engine.

The low-pressure turbine and the low-pressure compressor are on the same main shaft, and the low-pressure turbine drives the low-pressure turbine to rotate. They are another rotor.

That's the reason for the twin-rotor engine statement.

At the end of the engine is the afterburner and the exhaust pipe.

The reason why the high-pressure turbine is the biggest difficulty is that it not only directly withstands the high-temperature gas ejected from the combustion chamber, but also withstands the high-speed rotation of tens of thousands of revolutions per minute.

(End of this chapter)