Chapter 1219 Strange Compressor and Strange Data

When the translator conveyed Ren Bingda's answer to Bodi, the latter's expression even showed a moment of confusion.

Then he turned around and glanced at Ren Bingda next to him.

I found that the other party looked normal and didn't seem to be joking.

"Yourselves?"

He tried to confirm it again.

"Yes."

Ren Bingda showed a matter-of-fact expression:

"Since it is the industry standard proposed by Huaxia, then we, as a Chinese enterprise, should naturally take the lead and set an example."

This time, Bodi did not respond immediately. He just picked up the water cup and half-drooped his eyelids, pretending to drink water.

But even from Ren Bingda's perspective, he could see that the water level in the cup had not changed for half a day.

Obviously he was taking the opportunity to think of a countermeasure.

This is actually the case.

As a supervisor with a technical background, Bodi almost instinctively began to think, if the Chinese were serious, then whether it would be possible to achieve it by simply modifying the existing models, or at least to meet the other party's requirements on paper.

The energy consumption and emission testing of aircraft engines is the same as that of automobiles, and there are many specially developed "test-taking" skills.

Anyway, it is impossible for anyone to follow a flying plane to check emissions, so as long as it can pass the inspection process, everything will be fine.

But this is like a final exam in college, the score on paper cannot be too far away from the passing line.

Otherwise, even if the teacher wants to save the child, it is likely that he or she will not be able to do so.

After some thought, Bodi came to the conclusion that -

It's hard.

The Trent 900 is already one of the models with the lowest unit emissions and fuel consumption in the aero-engine industry, and even met the data specified in the CAEP6 standards three years ahead of schedule.

Including the NGME project he is currently in charge of, it is also designed around the requirements of CAEP6.

There are three ways to further improve efficiency and reduce emissions.

First, great force can achieve miracles by continuing to increase the temperature before the turbine, reducing the fuel consumption per unit thrust, and inhibiting the production of thermal nitrogen oxides.

The second is to improve the structure of the combustion chamber to allow the fuel and air to be fully pre-mixed as much as possible, improve the degree of combustion, and reduce the production of rapid nitrogen oxides.

The third is to directly change the fuel, such as changing from burning aviation kerosene to burning methane or hydrogen, which can solve all problems in principle.

But either way, it is easier said than done.

At the very least, they will need to start from scratch and design a completely new aero engine core.

This is not an effect that can be achieved by simply patching up existing models.

After figuring this out, Bodie actually relaxed.

He naturally knew that the Chinese did have some unique skills in the field of aero engine design and manufacturing, otherwise the two sides would not have had a series of collaborations that have continued to this day.

But unique skills are still unique skills.

The above three points are all extreme tests of the basic skills of aero-engine design.

Taking the combustion chamber structure as an example, Rolls-Royce referred to the proposal of GE next door and used three annular cavity structures and a total of 90 fuel premixing nozzles of different sizes in its new generation of products. It controlled the combustion through 12-way fuel control valves, and accurately adjusted the combustion mode in the combustion chamber under different power conditions. A newly designed split-tube combustion chamber structure was used to provide sufficient combustion space for premixed combustion.

Although Bodi has not seen the specific structures of China's several self-developed aircraft engines, considering that they introduced and produced the PS90A and D436 aircraft engines with the technical level of the early and mid-90s at the turn of the century, it is hard to believe that the other party could surpass them at the basic level in just five or six years.

This is not to mention the difficulties at the production level.

Although Rolls-Royce's technical department has not yet figured out how the air film holes of the Trent 900 turbine blades are processed, it is certain that China still does not have the ability to produce the blade body.

In short, like many of their other industries, there are obvious signs of very uneven development.

Of course, considering the previous experience of Panos Watson being hit by a boomerang, Bodie was not prepared to say anything final.

Instead, I decided to wait and see.

"All right……"

He put the still almost full glass back on the table:

"Although I still think this option is a bit too radical, I wish you all the best, and if necessary, we are willing to provide partners with..."

Ren Bingda could tell that this meant he was no longer going to dwell on this topic.

Apparently after a round of analysis, Bodi did not think that he could really come up with a product that met the new standards.

In fact, to some extent, the latter speculation is indeed correct.

Since the domestically produced WS-20 is intended for military use, some standards have been relaxed in terms of emissions and fuel economy.

If AE1500 wants to achieve its goal of being put on the market before 2010, it will need the help and cooperation of Rolls-Royce.

This is why President Chang always sets such high reception standards for Bodi.

However, the cooperation methods are completely different from those of previous models such as M88, Sea650, Trent 900, etc.

This time, from models to technology, China needs to take the lead.

Therefore, Ren Bingda had already prepared a draft in mind.

He was not in a hurry to argue with Bodie, but just continued to chat about some trivial topics.

Then, taking advantage of a moment when both parties were silent, he suddenly changed the subject:

"Mr. Bodi, I think you should have rested enough. Next, according to the principle of reciprocity, there is another itinerary to visit our R&D center..."

The so-called principle of reciprocity refers to the fact that when Ren Bingda went on a business trip to Rolls-Royce, the latter also opened part of its R&D area to him.

Now that courtesy is reciprocity, it is natural that one must also show some appreciation in return.

There was no movement on Bodie's face, he just raised his eyebrows subconsciously.

In the itinerary schedule given by China in advance, there is indeed an item called "visiting the production and R&D center".

But because they were written together, he thought that he had completed the tour at the factory.

I didn't expect there would be a separate program later.

……

The development process of aircraft engines involves many people. The entire industry chain contains hundreds of upstream and midstream suppliers and partners, and the number of departments involved in R&D work is countless.

The so-called "R&D center" that Ren Bingda took Bodi to visit was actually a testing workshop.

It is also a place that is relatively easy to reflect product performance without being overly sensitive.

The group left the meeting room, put on their work clothes, and soon arrived at a three-story building next door.

A dozen technicians dressed identically were gathered around a hanger-mounted device, apparently conducting performance tests on a certain model of engine components.

It's just that the distance is too far, so I can't see clearly what it is.

There is a row of railings behind the operating table, with a yellow and black sign hanging on it.

Bodi couldn't understand Chinese, but it was not difficult to guess from the huge exclamation mark and symbol signs that they should mean something like "Do not approach" and "Be careful of hot surfaces".

Ren Bingda stopped and turned to introduce the British delegation behind him:

"Gentlemen, our technicians are testing the cycle performance of the new large bypass ratio turbofan engine. You can visit freely in the blue ground area without interfering with their work..."

After hearing this, Bodi realized that what was hanging on the hanger should be a set of blades for a high-pressure compressor.

However, the appearance is quite different from any other common similar products.

He originally thought that this trip was just a routine matter, but now he suddenly became interested.

The entire test workshop is very large, with about twenty workbenches. But perhaps because it is already time to get off work, or perhaps it is specially for welcoming visitors, in short, less than half of them are in operation.

Only about one-third of them had staff operating or observing.

Although these workbenches are also outside the blue zone where they can move freely, the level of security is far less stringent than that of the components being tested.

At least it's not difficult to see what's displayed on the screen when you walk by.

After realizing this, Bodi immediately said that he wanted to take a look around, and then pretended to walk back and forth in the workshop casually.

He did not deliberately stop at any place during the whole process, and even asked some trivial questions to the accompanying personnel from time to time.

But his eyes kept glancing at the screens on both sides.

Hard work pays off.

On a computer deep in the workshop, he actually saw a page that he was extremely familiar with -

That is the online gas composition detection software from Swiss company Rotronic.

Previously, the same equipment was used to test exhaust emissions during the Trent 900's ground testing and test flights.

So it only took Bodie a glance to recognize it.

It is obvious that the Chinese are indeed paying attention to aviation engine emission reduction technology.

I just don't know the exact progress.

The software is running at this time, and it looks like the operator started the data processing program and then freed up his hands to do something else.

This allowed Bodi to seize the opportunity.

Sure enough, the man following behind him froze, and then made a gesture to another engineer.

The latter immediately understood, and hurried to the computer and switched the software window to minimized state.

This set of actions was smooth and flowing, but Bodi still wrote down the voltage data corresponding to the two sets of probes RS325 and HC402.

Rolls-Royce is also using the same probe and analysis program. As long as a calibration is performed using nitrogen data, the gas concentration corresponding to this specific voltage can be roughly calculated.

Of course, there are slight differences in composition between the air in the UK and the air in China, but they will not have a significant impact on the results.

After receiving this unexpected surprise, Bodi was worried that he would forget the two sets of numbers later, so he was a little absent-minded during the entire process.

In the end, he even used the excuse of feeling unwell and took the initiative to end today's trip early...