It only took less than three days for Ruiyang to send someone to get the information from the Beijing department and send it to Duan Yun, which was so fast that Duan Yun felt incredible.

And this also shows Ruiyang's attitude, he is a person who does what he says, and his approach does give Duan Yun a sense of urgency.

After sending the tall and thin man from the Light Industry Bureau away, Duan Yun immediately asked the people from the Security Section to bring the thick bags of materials on the table to his office.

There is a data cabinet in Duan Yun's office, which is now full of materials, most of which are some reference books and materials from the factory.

After Duan Yun asked the people from the security department to put the seven or eight thick bags on the desk, he closed the door of the office and couldn't wait to take a look.

Picking up one of the file bags, Duan Yun saw that it read "AvtoVA Automobile Factory Product Information".

Duan Yun was stunned, and then picked up the other file bags.

I saw that these file bags were marked with the words "product information of the Gorky Automobile Plant", "product information of the Likhachev Automobile Plant", "product information of the Ulyanovsk Automobile Plant", and "product information of the Muscovite Automobile Plant".

These are obviously all drawings of Soviet cars.

Just thinking about it, Duan Yun reacted.

After the founding of the People's Republic of China, it can be said that the situation of poverty and whiteness was one and the other, and the industrial system was even more backward in an all-round way, and it was on the verge of collapse.

In the 50s of the last century, the Soviet Union's assistance to China was not only to provide funds and materials, but also to generously come up with core technology and production equipment, selflessly sent a large number of experts and engineers, and helped China to establish a complete industrial system.

It can be said that if it had not been for the Soviet Union's assistance to China, China's industrialization process would have been at least 30 years late, and this is definitely not alarmist.

Most of the design work and equipment manufacturing of the aid project was completed by the Soviet Union, and the rest was completed by Soviet experts with the help of Chinese enterprises, and a large number of Soviet scientists, engineers and technicians participated in the construction of these industrial projects, and some projects even moved the drawings and equipment of entire factories from the Soviet Union, and these drawings and equipment were in large use until the liberation and opening up.

And the materials of these portfolios should be the drawings obtained from the former Soviet Union at that time.

In the 50s of the last century, among the leading cadres in the car, the Volga can be called the main model, the country at that time, senior leaders have sat in this kind of car, and in 1960, the predecessor of the Beijing Automobile Factory: Beijing First Automobile Accessories Factory in 1960 had referred to the drawings of the Volga car, trial production of "Dongfang Hong" brand cars, and many subsequent domestic cars, are also made of imitation of the former Soviet Union automobile products, including the current transmission produced by Duanyun Factory, which is also imitated from the former Soviet Union gas automobile gearbox.

China and the Soviet Union were at odds in the early 60s, if it was just the data drawings of that era, the reference value for Duan Yun would not be high, after all, there is now a mature imitation of the Soviet car production technology in the 60s.

However, when Duan Yun opened the file bag of "AvtoVA Automobile Factory Product Information" and carefully flipped through it for a while, he suddenly had an unexpected surprise.

It turns out that the archives of the Ministry of Light Industry have been updated, although Sino-Soviet relations have been bad 20 years ago, but have maintained economic and trade exchanges, in the sixties and seventies have also imported a lot of Soviet cars, many of which only have auto parts construction drawings, and lack of relevant technical parameters, obviously should be the domestic design drawings obtained by dismantling and other methods.

It took Duan Yun a whole morning, and Duan Yun roughly flipped through the drawings and materials of these file bags, and finally put the other file bags in the data cabinet, leaving only the information bags of the Volga Automobile Factory.

The reason why Duan Yun specially left the information of the Volga Automobile Factory is also very simple, first, because the Volga automobile can be said to represent the highest level of the automobile industry in the Soviet Union, and the AvtoVAZ automobile was a benchmark for China's automobile industry at that time, and the second is because the automobile gearbox currently produced in the factory is also produced by imitating the Gass automobile gearbox under the Volga in the fifties and sixties.

Later generations had the impression that Soviet products were stupid and clumsy, but in fact, in the 70s, the USSR was definitely a world industrial power, but due to the limitations of the planned economy, it was not possible to produce a world car brand.

The decay of the Soviet car is due to the decay of the system of its planned economy and the problem of national fortunes, but in fact, the Soviet car before the 80s was still very advanced.

Duan Yun first screened out the main model materials of the Volga Automobile Plant in the Soviet Union after the 70s, and then looked for car gearboxes suitable for imitation among these models.

At noon, Duan Yun did not go home, but asked his assistant army to go to the cafeteria to get him a meal, and he sat in the office, continuing to consult these materials while eating.

Eventually, a gearbox called the BA3-2101 model caught the attention of Duoyun.

This BA3-2101 "Zhiguli" sedan is actually the well-known "Lada" sedan in this era.

Production of this sedan began on April 19, 1970, and by December 1973, a full 1 million units had been produced, and by June 3, 1978, the total production had reached 4 million units.

Being able to produce so many cars shows that this model of car has been tested by the market, and the engine and transmission technology should be very mature.

Although this model of the 70s is slightly backward in performance compared with the European, American and Japanese cars in the 80s, it is already advanced in terms of the automobile technology of the fifties and sixties used by most domestic automobile manufacturers.

Because Ruiyang only gave Duan Yun a year, Duan Yun can't be ambitious, and the internationally advanced European, American and Japanese cars, in terms of domestic equipment and materials, can't be made at all, so imitating this Soviet car gearbox produced in the 70s has become Duan Yun's best choice.

This style of Lada car uses a 4-speed manual transmission, compared with the current transmission produced by Duanyun Factory, the structure is slightly more complex, and the performance is more superior, which is better than the transmission products commonly used in domestic commercial vehicles.

In fact, Duan Yun originally wanted to imitate a hydraulic automatic transmission, the automatic transmission does not need to clutch shift, the gear is less, the change is large, and the connection is stable, so the operation is easy to bring a lot of convenience to the driver.

But in today's domestic automobile market, because it is a planned economy, ordinary citizens can not afford to buy a car, so there is no need to consider the convenience of the driver at all, in addition to the hydraulic automatic transmission, the structure is complex and difficult to repair, and the fuel is not economical, the transmission efficiency is low, the range of transmission is limited, although the technology is advanced, but it does not conform to the national conditions.

The ordinary manual gearbox has a simple structure, stable performance, cheap price and fuel saving, especially the cheap price, which is very important and is conducive to product sales and price war, so after comprehensive consideration, Duan Yun finally selected this more mature manual gearbox.

In addition, with Duan Yun's profound mechanical technical attainments, he can also make some small improvements to this manual gearbox, making it a real "domestic" gearbox, which can better show the technical design ability of his factory, and can also cater to the national pride of some Chinese people......

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