Chapter 915

Lin Guanghua is right. As early as the end of 1980s, Tengfei group began to track the relevant foundation of the full digital electronic control system of foreign aero engines.

At the beginning, Tengfei group didn't want to choose the main beam by itself, but hoped for international cooperation.

It's not that Tengfei group didn't want to be independent, but at that time, Tengfei group spread out too many stalls, and all aspects of resources were a little tight, so it didn't have the energy to invest more in the full digital electronic control system. In this case, the full digital electronic control system in the form of international cooperation is a quick measure to fill the gap.

So Zhuang Jianye found Ge and Pratt Whitney through McDonnell Douglas and other American partners who had a good cooperative relationship with Tengfei group at that time, hoping to cooperate in the full digital electronic control system of aeroengine.

As a result, GM and Pratt Whitney read the letter of intent handed over by Tengfei group, but they didn't immediately refuse it. Instead, they gave detailed introductions of similar products to the two aviation giants of Tengfei group, and bluntly told Tengfei group: "don't build your aeroengine and gas turbine. Take a look at our products. They are much better than yours. What's the matter? Let's do OEM work for our two brothers. Let's hang out with my elder brother, and make sure that you drink a little wine every day, xiaohuazi smokes, big gold chains, small watches, and little girls act as cotton padded jackets! "

Zhuang Jianye is ready to cooperate. On this premise, he would not mind if he could undertake some OEM of aero-engine parts of General Motors and Pratt Whitney and earn some pocket money. The problem is that general motors and Pratt Whitney directly regard Tengfei group as their younger brother, and they want to join the group without saying anything, and they begin to squeeze ruthlessly.

Where can Zhuang Jianye stand? Of course, he has to point out his attitude.

GM and Pratt & Whitney originally thought that Tengfei group was coming to pay homage to the wharf and be their younger brother. Naturally, they were polite. However, it turns out that Tengfei group is not a member of the society, but is prepared to steal teachers and learn arts. If this gives a good face, what should the other younger brothers of the two brothers think?

What's more, the full digital electronic control system is another global leading black technology of General Motors and Pratt Whitney in Aeroengine core materials.

It is of great significance for the two of them to open up the gap with other countries and maintain the leading edge in aeroengine in the next 20 years.

In fact, it is.

Different from the traditional hydraulic mechanical control system, which needs a set of complex mechanical components and accessories, which are installed on the lower or side of the aero-engine, the full digital electronic control system only needs a core electronic control box, combined with the precision servo control mechanism and sensors integrated with the aero-engine, which can control the turbine temperature, turbine speed and fuel injection of the aero-engine The oil rate and the fan count are controlled.

One is a huge and complex mechanical structure accessory that almost occupies half of the body position of the aeroengine, and the other is an electronic control box with the size of a computer screen.

No other consideration, just to reduce the weight of the aero-engine itself makes the full digital electronic control system immediately become the synonym of Zhenxiang.

What's more, the maintainability of the digital electronic control system is much better than that of the traditional hydraulic mechanical control system.

There is no way that the mechanical structure is already complex, and it serves for the existence of aero-engine. Naturally, its own coffee seat is also an uncle. Therefore, the required accuracy and maintenance frequency can make the ground service engineer collapse to tears.

The full digital electronic control system is different. A master electronic controller is not only exquisite, but also can check the internal nodes through an external computer. The specially designed control software has the function of fault prediction and independent detection, so that in many cases, the full digital electronic control system does not need to be checked by the ground crew The fault position has been displayed.

According to the location of the display, the ground service can either adjust or repair, which can be said to point to the key, efficient and rapid.

Of course, this is only one aspect of the many benefits of the full digital electronic control system, and what really makes this technology the treasure of American aviation giants is the qualitative improvement of flight quality by the full digital electronic control system.

Due to the complex mechanical structure of the traditional hydraulic mechanical control system, the pilot always has an unavoidable lag when controlling the engine output.

So that when the plane is flying, it always gives people a sense of weakness.

It's just like a car with a rubbish gearbox. The frustration of shifting gears can make the old driver crazy.

Civil aircraft is OK, it doesn't matter if it lags behind. Anyway, you don't need to make a difficult maneuver, just follow the route smoothly to the destination.

The fighters used in air combat are going to die.

You should know that air combat is fast changing. If you delay it a little, you may be locked by the enemy and enter the soul.

Because of this, there is a big difference between the combat effectiveness of using the full authority digital electronic control system and the unused fighter, because the full authority digital electronic control system can be seamlessly connected to the fly by wire flight control system of the aircraft, so as to optimize the performance output of the aeroengine to the whole fighter as a whole.In this way, the pilot only needs to move the joystick, and everything on the plane will be processed efficiently and automatically.

In contrast to the traditional hydro mechanical control system, the pilot is a throttle, a valve, a regulator and a joystick

After a set of actions, the flight attitude may not be adjusted, but the pilot has been in a hurry and tired to death.

The most typical is the SU-30MKI multi-purpose fighter introduced from Russia by New Delhi. On paper, this combat aircraft is equipped with the world's leading vector engine.

However, Russia is not qualified in the full digital electronic control system, so it can only use the traditional hydro mechanical structure to control the complex structure of vectoring nozzle.

As a result, the weight of SU-30MKI structure increased sharply, and at the same time, it also brought unnecessary trouble to the pilot's control, because the New Delhi pilot of SU-30MKI multi-purpose fighter needs to hold the control lever with one hand, control the control valve with the other hand, and start the hydraulic button, and then grasp the balance according to the feeling, so as to achieve the deflection of the vectoring nozzle and the engine The thrust is increased.

The F-22, which also uses vectoring engine, has a seamless connection between the full digital electronic control system of the engine and the fly by wire control system of the aircraft, which makes the pilot of the F-22 want to realize the deflection of the vectoring nozzle, and directly pull the control lever to achieve the perfect output.

With such a huge performance advantage, how can GM and Pratt Whitney cooperate with each other? Of course, it is cost-effective to cover up monopoly.

To tell you the truth, at that time, one of GM and Pratt & Whitney could tell Tengfei group: "young man, it's not easy. OK, big brother, help you."

Zhuang Jianye is able to take advantage of Tengfei group.

As a result, no one would like to see Tengfei group. In the corner, Zhuang Jianye either became a little brother or was abandoned as a piece of shit. Unfortunately, he chose the third way. He was not only a member of the world, but also a big brother!