Finally, before getting off work that day, all the data was roughly determined, and several pages full of pages were full of the dimensions of the joints between the parts, and it still felt like the day had not been in vain.

This is the desired research atmosphere, and although the project team does not feel like a good project compared to the 'high-thrust aero engines' in the institute, the importance of this project to the institute is not low at all.

Now it is necessary to assign several major components to the six people of the project team, of course, Yang Hui cannot be excluded, after all, it is also an important research and development force, and the most important thing is that the most official position in the scientific research institute is the boss, but if you really want to convince people, you still have to rely on the real skills in your hands, Yang Hui can't lag behind at this time.

"Everyone looks at which sub-project they want to choose, there are combustion chambers and oil supply systems, casings and guide cones, bearings and bushings, compressor wheels and diffusers, turbines and deflectors, and engine starting systems"

It's just divided into six sub-projects, and six people are just enough to score. At present, the workload should be about the same, but in fact, there must be some difficulties in research and development, but I don't know who can encounter it.

Seeing that no one took the lead in choosing, Yang Hui thought about it and felt that he was the only one who took the lead at this time, and it was good not to choose a simple one, after all, he was the project leader.

"Okay, I'll take the lead, I'll do the combustion chamber and oil supply system, and the rest of you can choose according to your own wishes, and if it's slow, you can only choose the rest in the end."

First choose a key sub-project, the difficulty coefficient of the combustion chamber depends on Yang Hui himself, the selection of the ring tube with the safety point should not be a big problem, but if you choose the annular combustion chamber, it will be difficult.

Since someone has taken the lead, it is naturally easy to say that they have chosen their own projects, Liu Wang chose the casing and deflector cone, Pan Wen chose the turbine and deflector, Zhong Jianshe chose the more difficult centrifugal compressor wheel and diffuser, Xie Lianfa calculated the bearings almost, of course, directly selected the bearing and bearing sleeve, and finally Long Derong could only make a starting system.

Each project seems to be relatively simple, for example, the engine starting system is too simple, so no one chose to fall on Long Derong's head in the end, but in the end, what I didn't expect was that it was still difficult to start the system.

Copy down some of the required data required for their respective projects, and start working hard to finalize them as soon as possible.

After all, he has been doing so many years in the test flight institute, and he has never seen any engine, as far as the various combustion chambers he has seen, he has to consult the design party with the design idea during the test flight, according to these different design ideas, Yang Hui can easily make his own project: annular combustion chamber.

In fact, in the early forties and fifties, most of the centrifugal turbojets used the split combustion chamber, which made the engine look actually quite ugly, but those are limited by the times, and can only be done that way, but now under the effect of the annular combustion chamber, the appearance of centrifugal turbojet will no longer be ugly, and the smooth ring tube combustion chamber will earn a lot of eyeballs for the engine.

It is determined that it is a ring tube combustion chamber, and then according to the characteristics of the centrifugal engine, there is only a one-stage centrifugal impeller, so it is relatively short and thick, but it leaves a lot of space for the combustion chamber, so that the combustion chamber can be made longer, so that the technical difficulty will be effectively reduced. In later generations, the further development of the annular combustion chamber was to continuously shorten it, so there was a short loop combustion chamber, but now there is no need to worry.

Since the length is relaxed, it is easy to say that in order to ensure the effective operation of the whole engine, the fuel nozzle is directly distributed in the six holes of the flame cylinder, and the flame cylinder is directly installed in the combustion chamber.

However, it was at this time that there was a big problem that Yang Hui did not expect, the conventional engine must atomize the fuel when spraying fuel to the flame cylinder, and the conventional vane vortex atomizer is more complex in structure, and it is definitely not suitable for the use of model aircraft-level vortex jet.

In front of us, the fuel must be atomized to burn effectively, and the model aircraft engine cannot use too complex atomizers, so it is now required to redesign a simple and effective atomizer that can make the fuel meet the combustion standard.

This is not ordinary, simple and effective, these four words are simple to say, but it is really not simple to realize, if it can really be designed, it would have been installed on the aero engine, and now it is still using the vortex atomizer that must be for a reason.

In fact, there have been two main ways of aero engine fuel refinement: blade vortex atomization nozzle and fuel evaporation, of which vortex atomization is not simple at all, and it is quite complicated to make. The most important thing is that if the model aircraft is finalized in two months, it is impossible to achieve the above vortex atomization method in a hurry.

So at this time, there is a crooked way, of course, it can also be said to cut corners. In the army of self-made model aircraft in later generations, for the sake of simplicity, some people came up with the idea of directly pre-heating on the ground, which can directly omit the atomization nozzle and make a simple evaporation tube.

Of course, Yang Hui also hit this idea, and there are many reasons for this: the first is to rush the schedule mentioned above, and the time is tight; The second is to minimize parts and make the engine simpler; The third is not a technical problem, who has ever seen a new product directly put out the most mature design as soon as it comes up, and the profiteers have not squeezed out the profitability of each generation of technology before launching the 'new technology' that has been in the data room for a long time. As a model aircraft developer, of course, you have to slowly make all the money you should make.

Thinking of this, the profiteer Yang Hui smiled sinisterly, these are all learned from foreign profiteers, after the reform and opening up, which of the foreign profiteers either brought the products of the generation behind the international level to the republic, or to make more money, who wants you to have no technology, now Yang Hui is taking advantage of the fact that no one abroad has done this technology to make a handful of money first, and after the same generation of technology is developed abroad, a new generation of technology is released, which is not too cool.

Thinking of this, if you look at your sketch again, it is much simpler without fuel atomization, that is, a flame cylinder is installed in the combustion chamber, plus a simple oil supply line, and then an evaporation tube and an igniter.

When the preliminary design comes out, I am looking for Wu Dabo, and the section chief of Wuhan University will take a look at it again.

However, now it is necessary to calculate some necessary data first, especially on some surfaces of the combustion chamber, which have strict requirements, perhaps the curvature here is larger, which will seriously affect the combustion stability. In severe cases, the combustion chamber will be burned directly due to uneven heating.

All kinds of methods are used together, all kinds of formulas, including some theoretical formulas that were summed up in later generations, dense start calculations, and various matrices, functions, and limits are used together. Ordinary people just have a numb scalp when they see this, but it doesn't matter to these professionals, these are just a bunch of tools.

Unconsciously, it was already past the time to get off work, the sky was a little dark, Yang Hui looked up and saw that he was working hard, no one cared if he was off work, looking at the sitting in various postures, as well as a few pieces of straw paper that fell on the ground, he stood up with a smile and went over to the door to turn on the light.

As for what kind of thing is called for everyone to get off work, it is very annoying at this time, and it will interrupt the train of thought if you are not careful, so Yang Hui will definitely not do it.

As soon as I walked to the switch by the door, the light had been turned on first, and I was surprised. It was actually Secretary Liu who came to the institute, and Secretary Liu, who was already in his fifties, looked at the only department in the institute that had not yet closed and was more curious.

When I saw that the secretary was coming, of course I wanted to say hello. Although this secretary is a bit of a black belly, and the authority of a local secretary in a place like the institute has been greatly reduced, after all, he is still one of the giants in the institute, and at least respect must be had.

"Secretary, how do you ・・・・・・?"

Before Yang Hui finished speaking, the secretary gestured to ask Yang Hui not to speak, and pointed to the people in the office, nodded with a smile, and then asked Yang Hui to go over and continue working, waved his hand and turned to leave.

After turning around, Secretary Liu was very touched, touching the scene and hurt. Yang Hui and their overtime work reminded Secretary Liu of when the institute used to work at full capacity, and it was the same. Thinking about it now, although Secretary Liu is just a political worker, but looking at the institute for so many years, how can he not be sad, although he didn't say anything, but he is more supportive of the model aircraft project, which carries the hope of the revival of the institute.