Chapter 258: A Woman Transmigrated into a Man and Engaged in Technology in the 1970s and 1980s 12

Jiang Tian and the Jiang family’s affairs had no impact on Jiang Lan.

But considering the issues of reputation and influence, Jiang Lan still asked about the progress of the matter.

Then he sent 100 yuan and some local specialties to the Jiang family.

The original owner of this plane was like being covered by a veil all his life, not knowing what he should do.

After Jiang Lan came, he also thought for a long time about which route to take that would be more in line with the original owner’s wishes.

In the 1970s, the Flower Kingdom was in ruins and waiting to be rebuilt. It can be said that everything was lacking and everything was needed, which caused Jiang Lan to suffer from choice difficulties.

Since he had come, he might as well make the best of it. Before he figured it out, Jiang Lan decided to stay put and be an ordinary student who studied hard.

"Hey, Jiang Lan, do you want to play basketball?"

Facing the call of his roommate, Jiang Lan honestly chose to refuse.

"I won't go, thank you."

As a woman at heart, Jiang Lan has a certain otaku attribute.

Things like playing basketball are still not very interesting.

Jiang Lan has become a man now, but he still doesn't understand.

Why do many people start shooting while walking? It looks really stupid.

There are four boys living in their dormitory, all of whom are from the Department of Physics.

Among them, He Yan is from S Province, Yu Menggu is from Q Province, and Feng Yuming is from Kyoto.

Jiang Lan observed and found that the law that it is difficult for a poor family to produce a noble son has already appeared in this era.

He Yan's family is in business, and they suffered in the early years, but now they live better. After all, the family foundation is still there, which is better than most people.

Yu Menggu is very low-key and rarely mentions family matters, but his dress, speech and behavior reveal a sense of nobility, and he is obviously not a child from an ordinary family.

Feng Yuming is a local of Kyoto. His family is very good and can be ranked among the well-known in Kyoto. He is definitely a second-generation.

Only Jiang Lan is a real mud-legged poor family. His family has been farmers digging for food in the soil for several generations.

If he hadn't been admitted to Tsinghua University, he probably wouldn't have had any intersection with this group of people in his life.

The gold content of college students in this era is very high.

Those who can pass the exam have truly transformed themselves and changed their fate through studying.

"Professor Liu's class is so difficult. His dialect is so strong that I can hardly understand him."

"Let's not talk about this. Are there any pretty girls in our physics department?"

"What are you thinking about? Nine out of ten people in the physics department are men. Even if there are girls, they are almost the same as men. If you want to find a pretty one, go to another department."

Jiang Lan is very embarrassed every time this happens.

Although he is a man in appearance, he is a woman in his heart. He doesn't want to discuss women with a group of men at all.

That's enough. He really doesn't want to YY cute girls.

"Jiang Lan, do you want to take a shower? Let's go together."

Okay, the embarrassing thing is here again.

Nowadays, schools are all public bathhouses, and there are no independent toilets. Every time you take a shower, you will see some...

well, some pictures that are not suitable for children.

Jiang Lan has some of these things himself.

He doesn't even want to see his own, let alone others'.

"I'll go later, you guys go first."

God knows he doesn't want to be shirtless with a group of men, rubbing each other's backs. It's too suffocating.

"Oh, I see."

Every time Jiang Lan was invited, he was rejected. Gradually, the other three people in the dormitory got used to acting in a group and no longer invited him.

Faced with such a situation, Jiang Lan was also helpless, but he also understood that this was his own problem.

His roommates really didn't mean to look down on him. It was just that he couldn't play with a few people.

To be more precise, Jiang Lan, a fake man, and a real man often can't play together.

Playing is nothing, he decided to do scientific research honestly.

So when he was free, he went into the library and started reading.

Many people are very vague about this period of history. Only by being in it can you know how hard the predecessors worked.

Two gray-haired professors sat next to Jiang Lan, and the two were discussing something in a low voice.

"This can't be drawn like this, this engine should be drawn like this..."

"No, you are wrong, the energy utilization rate is too low..."

Jiang Lan took a casual look and found that this was a simple drawing of an engine.

The car engines of this era have high energy consumption, large size and are more prone to wear, so they will be gradually eliminated in the later period.

"Student, are you also interested in engines? Do you understand this diagram?"

Both professors were experienced people, and they could tell whether a student understood something just by looking at their eyes.

After discussing for a long time, they were a little dry-mouthed and didn't plan to continue the argument. They

grabbed a student and started asking questions.

"I understand a little bit." Jiang Lan was still very humble.

"Okay, tell me what you think."

Under the burning gazes of the two professors, Jiang Lan calmly began to answer.

"This should be a direct injection engine. Gasoline is directly injected into the cylinder, and the pressure is increased by a high-pressure oil pump. During the intake stroke, only air enters the intake valve, and gasoline is directly injected into the cylinder from the nozzle on the cylinder head..."

The two professors originally wanted to give it a try, but they didn't expect to catch someone who knows the business.

"My classmate, you are right. This should be the most advanced engine in the world."

If it is based on the production level of this world, it is indeed quite advanced, but in Jiang Lan's eyes, it is still a little lacking.

"The energy consumption of this engine is too high. It is estimated that less than 30% of the potential chemical energy in gasoline will be converted into energy to actually drive the car. The rest will be lost due to idling, parasitic losses, heat and friction."

The two professors nodded in agreement. This problem does exist.

Jiang Lan took the drawing and drew a few lines on it with a pencil.

"In fact, we can have a better solution, such as extracting as much energy as possible from the fuel. What we need to solve is that the fuel and air will not be premixed before reaching the cylinder, instead of being injected directly into the cylinder."

The two professors nodded repeatedly, and one of them asked tentatively.

"Student, do you have any good ideas?"

"I think we can add a turbocharger..." Jiang Lan drew it directly on the side.

"Use a turbocharger to use the exhaust gas to power the turbine, and the extra exhaust gas..."

"Besides, this engine is too big. I suggest using electronic parts to replace mechanical parts..."

After Jiang Lan said a lot, he felt a little thirsty, so he lowered his head and drank a sip of water.

When he looked up, he found that the eyes of the two professors were amazingly bright.