Then, Yi Zhonghai took the letter of understanding and went out.

As night fell, there was a lot of discussion in the courtyard. Everyone was more satisfied with what happened in these two days than watching a movie.

At Jia's house, Qin Huairu closed the door tightly before starting to eat.

A roast duck was chopped into two halves by Qin Huairu, keeping half of it and putting the rest in the pot for stew.

That night, the Jia family finally got some food.

Jia Zhang even drank three bowls of soup, and even Jia Dongxu ate more than usual.

The Jia family finished eating and rested contentedly, but Xu Damao in the backyard was groaning and cursing that Silly Zhu had diarrhea and died of diarrhea after eating roast duck.

The night passed and morning came, Shazhu walked back to the courtyard from outside the courtyard.

Yesterday, Yi Zhonghai came to the police station with a letter of understanding. After some education, Shazhu paid the fine and was detained for one night and then released.

However, after a night trip to the detention center, Si Zhu was obviously much calmer. Although he still looked ruthless, he was not worried about being beaten for no reason.

Of course, except Xu Damao.

…

Yang Xiaotao came to the steel rolling mill as usual, sat in the office, and was busy alone.

As for Lou Xiao'e, after understanding what Yang Xiaotao was doing, she also found two books on steam engines. It seemed that for her, being able to keep up with Yang Xiaotao's pace was the greatest pleasure.

Unfortunately, reading is not something everyone can enjoy.

Lou Xiao'e had no basic theoretical knowledge, so she just looked at pictures of steam engines. As for the words "principle", she knew them all, but she didn't know them all.

There was no other way, Lou Xiao'e continued to repeat the past days.

In the next few days, she felt that Yang Xiaotao was crazy. Sometimes he would not even eat lunch. She would go and bring the food back, and Yang Xiaotao would eat some and continue working.

At this time, Lou Xiao'e finally found a job, that is, working for Yang Xiaotao.

When the water in the tank ran low, she would fill it up. During lunch, she would fetch rice, even putting money on it, and she would take the initiative to wash the lunch box after the meal...

It's not that Yang Xiaotao didn't notice it, he also wanted to come by himself, but he forgot about it when he got busy, and gradually got used to it.

On Friday, Yang Xiaotao's steam engine design was finally completed.

Although the steam engine had been invented a long time ago, and domestic steam engines had been studied for a long time, judging from the channels he knew, the research and development of steam engines was not satisfactory.

This can be seen from the development of locomotives. Domestic research and development of steam engines is still insufficient.

Moreover, most of the targets of attention are heavy-duty and large-scale steam engines, and the development of small-scale steam engines has not been paid attention to.

Yang Xiaotao didn't know if it was meaningful to build a small steam engine, but he knew that the well-drilling machine would be enough.

After some modifications, including reference to the design ideas of diesel engines, Yang Xiaotao finally designed a two-cylinder reciprocating small steam engine.

The machine is mainly composed of cylinder, base, piston, crank connecting rod mechanism, slide valve steam distribution mechanism, speed regulating mechanism and flywheel.

This is already the result of streamlining while ensuring sufficient power.

Of course, some of these technologies have considerable requirements for accessories. For example, the cylinder requires extremely high processing accuracy, and the smoothness of the cylinder must be ensured.

According to the design, after the water in the boiler is boiled, high-temperature and high-pressure steam is generated, which passes through the air inlet valve and finally enters the cylinder of the steam engine along the pipe.

In this way, the steam drives the piston to move, and the piston drives the connecting rod to move.

The connecting rod drives the flywheel through the crankshaft, and the flywheel begins to rotate highly.

On the other side, when the connecting rod moves, it automatically opens the valve of the cylinder.

The valve controls the time when the steam reaches the cylinder, enters the slide valve chamber through the main steam valve and the throttle valve, and is controlled by the slide valve to alternately enter the right side of the cylinder to push the piston to move.

The steam pushes the piston in the cylinder to do work, and the cooled steam is introduced into the condenser through the pipe to condense back into water.

This process is repeated continuously when the steam engine is in motion, continuously gaining mechanical power.

The entire steam engine is about one meter long and half a meter high, and the power it generates is expected to be about 15 horsepower.

The specifics still need to be tested.

"finished!"

Yang Xiaotao moved his body, habitually picked up the enamel jar, drank a sip of water, and felt that his whole body was smooth.
Chapter completed!