Tianfeng Technology Company.

In the huge conference room, there are 20 or 30 designers, engineers and technicians, in addition, Sun Xiaoping, the chief designer of the model, Zeng Qinghai, the minister of process technology, and Li Tianfeng, everyone is sitting in the conference room.

A projector in the conference room is projecting a 3D color picture of the turbofan engine on a snow-white screen in front of everyone. This engine looks very beautiful and visually appealing.

This turbofan engine of Tianfeng Technology is very accurately positioned, and it is powered by civil regional airliners, the fourth-generation turbofan engine.

The key is the fourth-generation turbofan engine, and the countries that develop and produce the fourth-generation turbofan engine, looking at the world, there are only a few countries, such as the United States, the United Kingdom, and Russia can also be counted as one.

Aero engines have been in service for a total of 4 generations, the standard of the generation is generally very complex, are represented by the overall performance quality of the leap, for a simple division, you can choose a parameter that can distinguish the engine capacity: thrust-to-weight ratio, both thrust and self-weight ratio, turboshaft engine power-to-weight ratio. As far as the domestic is concerned, the first generation of turbojet 5 and 6, the second generation turbojet 7, turbofan 9, the third generation turbofan 10, and the fourth generation of Huanmu have.

Tianfeng Technology's turbofan engine, a veritable fourth-generation turbofan engine, is absolutely first-class in the field of civilian turbofans when looking at the whole world.

This is the first large-scale technical meeting, the core technical personnel, the core process personnel, everyone sat together for the first time, in order to keep secret, everyone did not bring mobile phones according to the regulations, only brought notebooks and pens.

As the chief designer of the model, Sun Xiaoping's heart was slightly excited and glanced at Li Tianfeng. Seeing Li Tianfeng nodding slightly at himself, Sun Xiaoping took a deep breath and tried his best to calm his mood, introducing this excellent turbofan engine for the first time in front of so many designers and craftsmen.

The main features of this turbofan engine are as follows:

Fan: Single-stage. It has a diameter of 1420 mm and is made of titanium hollow crownless wide-chord blades.

Low-pressure compressor: 4 levels.

High-pressure compressor: 5 levels.

Combustor: Based on a high heat load combustion chamber, but with a laser-drilled, thin-film cooled wall plate structure with a composite metal/ceramic flame cylinder.

High-pressure turbine: single-stage

Low-pressure turbine: 3 stages

Engine performance: take-off thrust of 18000~23000kg.

Bypass ratio: 5.2

Total pressure ratio: 36

Engine length: 2645mm.

Net engine weight: 2185kg

……

Sun Xiaoping introduced in detail, this is the first time to officially announce to you the detailed parameters and performance of our fan engine, as a designer of course also know these, but the process technology department of the process technology department for the first time to know in such detail.

With Sun Xiaoping's introduction, the expressions on everyone's faces gradually became more and more exciting. Such a turboshaft engine is absolutely world-class, and once it is successfully developed, it will definitely put a satellite into the sky.

After Sun Xiaoping's introduction was completed, many people's faces were slightly excited, and the eyes that looked at Li Tianfeng were obviously different, full of admiration, such an engine. As we all know, the real technical helm is Li Tianfeng.

Some people even whispered to each other. or tilt your head sideways, or turn your body, communicate with the people around you, and from time to time bursts of amazement.

"Lao Yang, the fourth-generation turbofan engine!"

"yes, the thrust-to-weight ratio is 10. And the fuel consumption is a few percentage points lower than the same type of civilian turbofan engine of Pratt & Whitney, which is amazing. ”

"Not only is the fuel consumption low, but the noise is also low, and the engine vibration is also low, if there is a passenger plane with such an engine. It's definitely very comfortable to ride. ”

“…”

Li Tianfeng saw that everyone was talking in a low voice, and everyone had wonderful looks on their faces, Li Tianfeng couldn't help but smile happily, raised his hand, pressed down, and signaled everyone to keep quiet.

Soon, the entire conference room fell silent, and everyone looked at Li Tianfeng with slight excitement and joy, while Li Tianfeng cleared his throat and said loudly.

"Ladies and gentlemen, this is the first turbofan engine of our Tianfeng Technology Company, although we started late, but the technical www.biquge.info of this engine is very high, if it is successfully developed, it is definitely the trump card in the fourth generation of turbofan engines, especially in the field of civil regional airliners, I want to let our engine sit in the position of a brother."

The location of the first brother!

Suddenly, everyone was even more excited, many people clenched their fists tightly, and some even secretly waved their fists vigorously, showing the excitement in their hearts to the fullest.

Sitting in the position of a brother, that is to say, if this turbofan engine is successfully developed, will be the world's best regional airliner power.

Li Tianfeng said: "Our turbofan engine will not only use a large number of new materials, new technologies, but also in terms of overall performance, it will be very good, low fuel consumption, low noise, low vibration, high reliability, high safety, high thrust, high life, etc., which we will fully consider in the design." ”

After a pause, Li Tianfeng said: "Our turbofan engine uses a lot of new materials on the core machine, such as ceramic-based materials, titanium matrix composite materials, single-crystal superalloy materials, etc., and also adopts a lot of new design technologies. ”

After Li Tianfeng's introduction, Sun Xiaoping stood up and said happily: "Our core machine is very advanced in technology, not to mention the core machine of the fourth-generation turbofan engine, I think it is also completely competent as the core engine of the fifth-generation turbofan engine." ”

Li Tianfeng nodded a little and said: "Mr. Sun, the technical content of the core machine is extremely high, do you have any pressure, do you have confidence!" ”

Sun Xiaoping said: "Boss, under your leadership, our entire design team is full of confidence, even if there is pressure, it will turn into infinite motivation." ”

Li Tianfeng said happily: "Okay, now our core designers and core process personnel are all gathered together, everyone is confident, and I am also very happy, but there are some technical problems, I still have to give you a briefing one by one." ”

Then, Sun Xiaoping explained a series of technical problems to be overcome on this engine, and set up a technical research team on the spot, Li Tianfeng also promised at the meeting that each technical research team will receive heavy rewards for completing the task.

Of course, on some key technical issues, Li Tianfeng will definitely personally lead the team and set up so many technical research teams, the main purpose is to train everyone, improve everyone's technical level, and make technical reserves for the next higher-tech aero engine.

………

Blade processing workshop.

This professional blade processing workshop, whether it is personnel or equipment, has long been equipped in place, and has produced a large number of various types of blades, turboshaft D engine blades, Pratt & Whitney blades and so on.

Next to a large vertical machining center, several pieces of titanium alloy blade blanks are neatly placed there, and on the machine tool, a blank is being processed.

Judging from this blade blank, such a blade is not small, not only the width is relatively large, the widest place is enough to have the width of a big palm, and the length is relatively long, the visual inspection of the blank is more than 600 mm in length, and the blade shape is relatively novel.

A middle-aged worker is rough machining the blades, which is high-speed milling, inside this vertical machining center, the milky white cooling is also splashing, the milling cutter rotates at high speed, and a large number of titanium alloy metal chips are in the shape of "C", which is milled down by a large number of them.

In the metal collection tank of this vertical machining center, there will soon be a lot of titanium alloy metal chips, this middle-aged worker is obviously very experienced, take a serious look at these metal chips, nod his head, and the processing is very normal.

In another machining center next to him, a relatively young worker said loudly: "Old Tang, this is the fan blade of our new turbofan engine?" ”

The middle-aged worker said: "It is this kind of blade, you see, how big and wide each blade is, much wider than my palm, Xiao Liu, I heard that this turbofan engine of our company will be very advanced." ”

"Lao Tang, I have also heard, the engine is very advanced, such an engine is really exciting, Lao Tang, you are so lucky, the first batch of parts of this engine will be arranged for you to process."

The middle-aged worker smiled happily: "Xiao Liu, your skills are also good, it won't be long before you will arrange the processing of parts on this engine, and when the time comes, you can take out all your skills to process the most outstanding parts." ”

Xiao Liu patted his chest and said, "Old soup, that's for sure." ”

Tianfeng Technology's turboshaft engine, even if the core machine is still in the design stage, but the fan blades have been designed first, and now they have begun to be processed.

Fan blades are very critical, high-performance fan components, can provide strong thrust for the engine, but also provide strong airflow for the compressor, whether a turbofan engine is advanced, whether the performance is excellent, the fan part is crucial.

The middle-aged worker said: "Xiao Liu, I heard that this kind of fan blade is designed to be very advanced, it is a hollow blade, you look at the high-speed and high-precision vertical grinder over there, my first batch of processed fan blades have begun to be high-speed grinding." ”

Xiao Liu said: "Really, Lao Tang, there have been two batches of this kind of fan blades you have processed, and now it is the first batch, I really envy you." ”

The middle-aged worker was about to answer, when he suddenly stopped and looked in surprise at the entrance of the workshop not far away, where several people were walking towards him.

…………

Today's two watches, the first one is sent!! (To be continued......)