In the early morning, after Xu Yubo woke up, he took his hand out from under the blanket. The window was open. A bee buzzed into the room and bumped against the glass outside the window. The sunlight passed through several ginkgo trees and shone directly into the room.

On the floor inside the house. (Win phone bill,

After getting enough sleep, Xu Yubo felt that his head no longer hurt so much, and his tinnitus no longer felt. In the past month, he only slept less than three hours a day on average, or even less. In order to save time, he even slept for less than three hours a day.

He saved all the time for eating and only ate steamed buns every day. If it weren't for the fact that there was a bathroom in the lounge next to the studio, he might have considered putting a toilet in the workplace. Fortunately, he didn't need to do this.

"I wonder how the trial production is going!"

After washing up, he returned to the studio and looked at the engineering pictures scattered on the messy studio floor. Xu Yubo thought this way. As a first-year student at the School of Mechanical Engineering at Dehua University, originally, he did not have the right to enjoy a car alone.

, however, now this is his "privilege".

"We need cars. In the past, they were needed on construction sites, but that was not urgent enough. Now the army needs cars. Our country does not have a modern military horse factory. In modern times, no mules and horses that can meet the needs of the military have been bred. Now the army needs cars for transportation.

Soldiers, transporting munitions, towing artillery!”

"Don't tell me what time it is! There's no time at all now!"

"Waiting for the car factory to start production? Then the Japanese can't wait for us?"

Faced with the requirements from the military, the localization of automobiles has naturally become a top priority in all work. Lianyungang's demand for cars, especially trucks, has never been met, despite the assembly and production of imported parts and self-produced parts.

Thousands of cars have been purchased, but this obviously cannot meet the needs along the entire Longhai Railway, and now there are demands from the army.

In order to meet the needs of the army, the army even took away buses from the streets of the attached areas. The shortage of cars only had a certain impact before the "Jiao'ao Incident", but after the "Jiao'ao Incident" it became a problem.

It is a problem that must be solved before everyone's eyes.

"We need a simple car that can meet basic transportation needs and has strong passing capabilities!"

At that time, facing the requirements of the military, Xu Yubo, who was studying in the School of Mechanical Engineering, devoted himself 100% to the design together with the teachers. However, in the face of the complex cars designed by the teachers and factory engineers,

Xu Yubo always felt that what they designed simply could not meet the requirements of the army, which was "simple, practical, and quick to operate." According to the requirements of the army, they needed a vehicle that was simple enough for illiterate people to drive and maintain, and did not need too much horsepower, but it was

It is easy to produce and can provide a sufficient number of vehicles, and neither the teachers nor the engineers in the factory have got rid of the "car" thinking.

Too complicated!

As a student of Rudolf Diesel, Xu Yubo's main direction of study was diesel engines. Although the * company has manufactured many new types of automotive, marine, and electric diesel engines, one of the early designs of his teacher Rudolf Diesel was

It attracted Xu Yubo's attention. He noticed that in Diesel's early design, there was a single-cylinder diesel engine with a very simple structure. Although there were some problems in the design, that early design pointed a way for Xu Yubo.

Half of the complexity of a car is concentrated in the engine. Only by using the engine with the simplest structure can the car with the simplest structure be built. The structure of the diesel engine is simpler than that of the gasoline engine. At the same time, the diesel engine has another advantage. The price of diesel is much lower than that of gasoline.

, the same money can buy two gallons of diesel for one gallon of gasoline, and diesel is more powerful. It is for this reason that the ships manufactured by Lianyun use diesel engines. Boats can use diesel engines, why can't cars?

After realizing the reason for the complexity of the car, Xu Yubo did not hesitate to choose to design a practical single-cylinder diesel engine that could meet the needs of the car, although his teacher Rudolf Diesel did not understand his move.

, but still gave support. After Xu Yubo drew on the teacher's single-cylinder diesel engine as the basic idea, and based on the various diesel engines designed and produced by the company, it took only six days to design and draw the single-cylinder diesel engine.

With the support of the college, a single-cylinder diesel engine was produced in just two days.

Although the single-cylinder diesel engine can only provide 26 horsepower, and although it is very noisy, the extremely simple structure of the single-cylinder diesel engine still makes everyone shine. But even so, Xu Yubo is still not satisfied. In his opinion,

The single-cylinder diesel engine manufactured using existing components was still too complex, and it could be further simplified. Finally, it took him another week to remove all unnecessary parts, and the extremely simple single-cylinder diesel engine was still able to be made.

He reduced parts by 30%.

Although it is simple, in the eyes of outsiders, the single-cylinder diesel engine designed by Xu Yubo has limited horsepower and cannot meet the needs of cars, at least trucks. As the power of cars, the engine noise is too loud, so in the eyes of many people

, this extremely simple single-cylinder diesel engine is even a kind of "tasteless". Faced with other people's doubts, Xu Yubo doesn't think so. Just because his own children love him and others don't understand, it doesn't mean it is useless.

So Xu Yubo started working on car design without sleep or food. For Xu Yubo, who had never studied car design or even mechanical engineering in a systematic way, the theoretical sources for designing cars were just a few car structure diagrams and cross-sectional views.

In order to understand the principles of cars, he went to the Engineering Academy and lay down under the dissected car model for ten days and nights. After that, when he felt that he had almost figured out the mechanical principles of cars, he began to design his own car.

, for fifteen days, he overturned his own designs again and again. All the designs were the same as others' designs, with no difference at all.

If designed according to the "traditional" design, then the single-cylinder diesel engine obviously has the disadvantage of insufficient power. If he wants to use his single-cylinder diesel engine in a car, he must solve these problems, but how to solve it? There is only one way, which is to simplify the structure

, making a fuss about the simplified structure, by simplifying the structure as much as possible, transferring the simplified weight to the load capacity, although Xu Yubo clarified the idea, but did not know how simple it was, Xu Yubo was completely stumped, so much so that

For more than twenty days, his entire being was completely trapped in an unprecedented self-contradiction.

Perplexed, Xu Yubo decided to go out to relax. For the first time in twenty-five days, he left the studio and walked on the street. He found that the atmosphere in Lianyungang seemed to be obviously different from the past.

There are a lot of police, and what is different from the past is that in addition to short guns, the police also wear long guns. Even the cars on the street have disappeared. It is said that they were requisitioned by the army.

However, after cars were requisitioned, another form of transportation became popular, bicycles. Perhaps it was a coincidence that Feige Bicycle Company produced bicycles and put them on the market at this time. Although there were bicycles on the streets of Lianyungang in the past,

However, each imported vehicle costs at least 80 yuan, and not everyone is willing to spend such a huge sum of money.

Bicycles seem simple. Although they belong to the consumer goods industry, their manufacturing methods are complicated in their simplicity. For example, the flywheel and chain must be accurate and lubricated, and quenching must be experienced. For example, the steel ring must be round, accurate and hard.

The frame must be at a certain angle. Others such as gear plates, handles, flower tubes, etc. all have their own complicated manufacturing processes. It seems easy, but it is not as simple as ideal. At this time, the Western powers led by Britain

In order to maintain its dominant position in trade with China, Chinese companies have implemented a technological monopoly. Therefore, China has not had a national bicycle manufacturer in the past 50 years since bicycles were introduced. It was under this premise that Feige Bicycle Company began to produce bicycles.

Bicycles, and the reason why they chose bicycles was that the company's senior management had other considerations.

At the annual work meeting of * Company at the beginning of the year, Mu Ouchu, as the general manager of the company, proposed that because the urban area is expanding and most factories are built in the suburbs, the lagging transportation system cannot meet the growing demand, so another car factory should be built.

, to meet the needs of the people.

Li Zicheng, who was presiding over the meeting at that time, was very interested, and Mu Ouchu took the opportunity to continue:

"I suggest buying a car manufacturing plant directly from the United States, with all the production processes in place, but all complete sets of accessories will be produced in the country. After acquiring the foreign factory, we will have brand-new factory technology. If we can refer to the technology of American car factories in the future, we can build

China’s own car factory.”

As soon as he finished speaking, Li Zicheng interrupted him impatiently and said:

"No, the purchase of the car factory must be postponed."

Compared with automobile manufacturing plants, Li Zicheng values ​​​​using foreign exchange to import heavy machinery that can produce machinery and equipment.

However, Mu Ouchu refused to admit defeat and played his last trump card:

"If we want to maintain the stability of the Huaihai Voucher, we must do it as soon as possible! You know, less than 300,000 residents in Lianyungang alone now hold 100 million Huaihai Voucher in their hands. The Huaihai Voucher in their hands alone is almost equal to the amount of Huaihai Voucher held by various countries in China.

The total amount of banknotes in banks. And now the national savings along the Longhai Railway are growing explosively every month, and many people do not trust banks, so they hold cash in their hands and press it at the bottom of the box. In order to ensure the normal circulation of large-denomination banknotes

In order to circulate, the money printing press has to keep turning. The most worrying thing is that the money at the bottom of the box will become a wild beast if you are not careful, causing a huge disaster. To eliminate the potential threat of these huge sums of money, we must look for

A consumer product that can be universalized."

After hearing these words, Li Zicheng spoke and said:

"There is no need for cars now. The national income is too low to afford cars. We can postpone it for a few more years. As for official cars, we can wait until the automobile factory is completed and build a small production line. We will solve some problems first and then design them every year."

For several new cars, we need to accumulate experience first, and then expand production when the time is right in a few years. And now we have to concentrate on big things first, well, we can think of ways to do it on bicycles and motorcycles."

In this way, in the investment plan of the company in the third year of the Republic of China, a bicycle company and a motorcycle company were added. Compared with the latter, the former's technology and required machinery were simpler, and it only took a few months.

Domestic bicycles were shipped out of the factory and put on the market. Compared with imported bicycles that cost about 100 yuan each, the factory price of each Feige bicycle was only 20 yuan. This was also at a time when a large number of buses were being taken away. Therefore, as soon as it was put on the market, it was criticized by Lianyungang citizens.

Welcome, tens of thousands of units were sold in just a few months.

In response to the booming sales performance, the bicycle company not only quickly launched various types of light bicycles, but also launched three-wheeled bicycles for transporting goods and picking up passengers. It can be said that in just two months, the traffic landscape of Lianyungang has changed.

, bicycles are no longer the exclusive preserve of high-income employees, even ordinary workers can own such means of transportation.

As for Xu Yubo, who was relaxing on the street, he obviously didn't know the inside story of the popularity of bicycles and the special market needs. He didn't even notice the extra bicycles on the streets. He was just thinking about how to design a simple car.

, but just on the road, his thoughts were interrupted by the sound of a bicycle bell, and a three-wheeled bicycle loaded with goods appeared in his field of vision. At first, he did not notice the bicycle, but he looked at the three-wheeled bicycle pulling

While the tricycle driver was unloading the wine, Xu Yubo, who was interested in the car, carefully looked around the tricycle at the strange-looking cargo bicycle.

One front wheel, without power, was lying on the rear wheel. The bicycle's power wheel chain was directly connected to the rear two-wheel axles. It was like a new world appeared. Xu Yubo's eyes just lit up.

"If you install the motor on the power wheel and use a chain instead of the drive shaft, then..."

A new type of automobile structure with extremely simple structure suddenly appeared in Xu Yubo's mind. That day, he rented the tricycle at the price of two yuan a day, and then returned to the studio excitedly, referring to the three-wheeled vehicle.

It took him a week to design his "three-wheeled car" on a three-wheeled bicycle. After completing the preliminary design of the three-wheeled car, Xu Yubo showed it to the technicians in the factory, although it was difficult for the people in the machinery factory to believe that that kind of car was

car, but in the end I decided to support it.

The next thing was simple. With the support of the machinery factory, Xu Yubo began to use a single-cylinder diesel engine to conduct power tests. He first trial-produced a simple axle. The axle was based on the axle of a three-wheeled bicycle, but this added

A power unit. As for the power wheel, it was completely imitated from a three-wheel bicycle. During the test, the trial chain broke multiple times. When Xu Yubo was disappointed and accurately redesigned the chain, a worker was muttering next to him.

"Wouldn't it be easier to use the drive belt on the lathe?"

A sentence awakened the dreamer. Although the machine tools in Lianyungang all had their own power, Xu Yubo had been to factories in other places. In those factories, a power machine drove the long axes of multiple working machines above the factory buildings, and the celestial axis was driven by a power machine.

Drive, then drive multiple intermediate shafts, and then drive each working machine respectively, and that is the power transmitted by the conveyor belt.

It is easier to use a transmission belt to transmit, and the strength of the transmission belt is not even better than that of a chain. Xu Yubo was so excited that he almost wanted to kiss the worker. After redesigning the transmission system, the efficiency of the transmission belt was very good. In order to increase the efficiency, one was replaced with two

Two roots were replaced, and finally four rubber transmission belts were used for transmission. After completing the simplicity of the transmission system, everything else became simple.

In just one week, a three-wheeled vehicle appeared in the compound of the machinery factory. After dozens of tests, Xu Yubo continued to improve the problems exposed in the test. Finally, yesterday, Xu Yubo took out the three-wheeled vehicle.

The final design of the truck was no longer an enlargement of a simple three-wheeled bicycle, but a brand new truck. It was only after the design was completed that Xu Yubo truly had a solid sleep.

“It’s time to build a prototype!”

After walking out of the studio, Xu Yubo thought in his mind. Ten minutes later, when Xu Yubo entered the machinery factory, he only heard the unique roar of a single-cylinder diesel engine.

"Tum, tom, tom..."

The sound sounded very laborious. Although it was still far away, Xu Yubo could tell that it was the sound made by the single-cylinder diesel engine he designed when it was working at maximum power, and there were people surrounding a piece of mud in the distance.
To be continued...