Siheyuan Great Craftsmen

Zhou Tian didn't care about anything else. He picked up the lunch box and felt the temperature of it. It was indeed a little cold. He didn't dislike it. He opened the lunch box and sat down to eat.

After eating, he burped, took a break, and then picked up the pen to start a new round of drawing.

Time passed unknowingly, and when the music for the end of get off work sounded, he finally finished his work for the day. He put the drawings in the drawer, picked up his backpack, went downstairs, and rode his bike back home.

For the next few days, he was immersed in the design data of the bus.

Although the appearance design of the bus is not difficult, the problem is that the design data inside needs to be more scientific, reasonable and comfortable, which cannot be completed in a few days.

In particular, bus design faces many challenges in terms of spatial layout, safety, comfort and urban adaptability due to its large passenger capacity, diverse functions and complex operating environment. Its design difficulty may be more complicated than that of ordinary cars when multiple factors are taken into consideration.

It took Zhou Tiancai five full days to finalize the design of the bus.

After the design was finalized, he did not delay and immediately entered the workshop and began handing the drawings to a group of technicians, asking them to have the workers process them. He then led his people to research the bus engine.

Although the Red Star engine developed last time can also be used, after all, he did not consider the fuel consumption issue when he built the truck engine at that time. Therefore, he could only develop a more fuel-efficient engine based on this Red Star engine.

Generally speaking, if an engine wants to save fuel, it can only be improved in several aspects, such as the fuel system, engine weight, thermal management system and reducing friction losses.

Fuel system improvements include not just one direction, the combustion chamber, but three different directions.

One is to improve the shape of the combustion chamber. Generally speaking, it is necessary to design a more reasonable combustion chamber shape through precise calculation simulation and a large number of experiments so that the fuel and air can be mixed more fully to best exert the efficiency of the combustion chamber.

The second is precise fuel injection control. For fuel engines, it is crucial to develop a high-precision fuel injection system.

The high-pressure common rail fuel injection technology can accurately control the injection amount, injection time and injection pressure.

The fuel injection strategy is adjusted in real time according to the engine's operating conditions, so that the fuel is sprayed into the combustion chamber in the best atomization state, forming an ideal mixture with the air and reducing fuel waste.

The last step is to optimize the air intake system, design efficient intake ducts and intake manifolds, increase the intake volume and improve the uniformity of the intake.

Of course, these are not difficult for Zhou Tian who has brain space.

It's just that he hadn't thought about this problem at the beginning. Now with the prompts and data from the brain space, he quickly simulated the entire engine's combustion chamber in the brain space through the fuel system countless times and obtained the optimal data.

As for precise fuel injection control and optimized air intake system, experiments were conducted in the brain space and results were soon obtained.

When this step is completed, generally speaking, the consumption of an engine can be reduced a lot. According to the data he compared with the brain space, the combustion efficiency and output power of the entire engine are enough to be improved by nearly 5%.

Faced with this data, Zhou Tian was not satisfied. You know, in his previous life, even the engines of daily life had a fuel-saving efficiency of about 10%.

"Dean, what's wrong with you?"

The technician at the side looked at the dean staring at the engine on the workbench in a daze and asked in confusion.

"No, it's nothing!"

Zhou Tian shook his head, came back to his senses, and without even looking at the technician beside him, he directly ordered: "Continue!"

"Yes! Dean!"

After hearing the dean's order, everyone started to get busy again.

In a blink of an eye, the music for the end of get off work sounded, and Zhou Tian had no choice but to stop the work in his hands. He picked up the towel around his neck and wiped his hands covered with engine oil. He looked at the technicians beside him and said, "Xiao Zhang, save today's data! We will start from another aspect tomorrow!"

"Got it, Dean!"

Xiao Zhang nodded and quickly ran towards the recorder!

"As for the others, get off work first!"

"Okay, Dean, we'll be leaving first then!"

Upon hearing this, although everyone was reluctant, they still obediently put down their work, greeted Zhou Tian, ​​and turned to leave the workshop.

Zhou Tian saw that everyone had left, then he slowly walked outside, thinking as he walked, wondering where to start next. After all, the fuel system could save 5%, which could be said to have reached the limit of engines of this era.

If we want to make further improvements, not to mention that the current industrial level does not support it, even in the past, such technology would have been the core technology of a transmitter factory.

It is unrealistic to make another breakthrough in this era, so the only thing left is to improve in three other aspects: engine weight, thermal management system and reducing friction loss.

The weight of the engine involves the application of materials. This is impossible before there is a breakthrough in materials. Although he has a lot of material formulas, there are very few material formulas that can be applied to the engine.

Most of them are about improving the high temperature resistance of materials and do not involve these. So the rest can only be dealt with from two aspects: thermal management system and reducing friction loss.

"Hey, I hope tomorrow goes well!"

As I thought about it, I had a vague idea of ​​the direction in my mind. Without giving it any more thought, I walked towards the carport.

After returning home and parking the car, Zhou Tian saw his second brother Zhou Hao walking out from the backyard.

"Xiaohao, why are you back? Aren't you going to school?"

Seeing Zhou Hao, he was stunned. He remembered that his second brother Zhou Hao lived in the school dormitory. But today didn't seem to be Sunday.

"Brother, how long have you not checked the time? Today is Saturday, and tomorrow is Sunday!"

Zhou Hao couldn't help but look at his elder brother helplessly. Although he knew that his elder brother was very busy during this period, he didn't expect that he was so busy that he couldn't even remember the time.

"Saturday?"

Zhou Tian was immediately startled by his second brother's words. After thinking about it, he couldn't help but slap his forehead. Isn't it? Today is indeed Saturday. Then he thought of what he said to the technicians at the research institute, and a bad premonition suddenly arose in his heart.

"Since tomorrow is a day off, they shouldn't continue to work tomorrow! That should be the case!"

But for some reason, the bad feeling in his heart became stronger and stronger.