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In Liang Yuan's plan, the Deutsche Bahn 120 series electric locomotive belongs to the kind of thing that will be worth it no matter what the cost as long as there is an opportunity to get it in the future.

In the history of the development of electric locomotives in Germany, the 120 series electric locomotive has the important significance of connecting the past and the future, in the 120 locomotive, German engineers for the first time tested the modular manufacturing mode, installed an electronic speed limiting system, a new brake control system and a series of new locomotive technologies. Most importantly, the Type 120 locomotive is equipped with a three-phase asynchronous motor and a GTO converter for motor control, which makes the transmission of the electric locomotive change from the traditional AC-DC type (Note 1) to an AC-DC transmission that surpasses the AC-DC transmission in all directions (Note 2). Later, with Deutsche Bahn sweeping Europe, the 101 series electric locomotive was developed on the basis of the 120 series.

In terms of domestic technology, the introduction of this kind of model from the old technology to the new technology is the most cost-effective, from which we can see the fundamental ideas of many Germans in locomotive design, for example, the turtle is now a primary school level, and the hard work may be able to study and understand the problems of middle school, if you give him the calculus of the university, in addition to learning to copy the answers, there is actually nothing to gain. Look at South Korea's Luo Lao rocket, China's independent CPU, real scientific research must not be ambitious.

It's a pity that at present, I can only look at the 120 locomotive and drool, and the cost of a 120 electric locomotive is about to catch up with four Spey engines.

The two of them got on the train, Liang Haiping looked at the carriage that looked like an airplane cabin and sighed and said: "Xiaoyuan, is there this under the car we went to East Germany to introduce?" ”

Liang Yuan pointed to the electronic display screens at both ends of the carriage and said, "The luxury journey is about the same." It's definitely inferior in details. ”

The distance between Bonn and Leipzig is about 500 kilometers, and after the reunification of Germany in the new century, it will take more than an hour to take the ICE express train, but now it is different, between Bonn and Kassel the train is running fast under the traction of the 120 locomotive, Liang Yuan saw that the electronic display screens at both ends of the carriage showed that the maximum speed had reached 195 kilometers / h. Two hours later, the train passed through the city of Kassel and slowly entered the Gotha customs office in the GDR.

The train stopped at the Gotha customs office for about 30 minutes, and the train restarted after changing the tractor nose, checking passports and tickets. After entering East Germany, Liang Yuan obviously felt that the speed of the train had slowed down, and looked up at the blackened display screens at both ends of the carriage, Liang Yuan sighed helplessly.

Counting from Beiping, Liang Yuan tossed for more than 30 hours. Even if we set foot on the soil of the GDR, there was not even a direct flight between East Germany and China, which was also in the socialist camp, and to visit the class brothers of one camp, they had to enter the country from West Germany, the rotten class enemy.

The 350-kilometre mileage train in West Germany took two hours, and the 150-kilometre train between Gogota and Leipzig in East Germany took two hours. Rotten capitalism really only buries its head in the road and does not care about the suffering of the people.

During the German Empire, Leipzig was famous for its fairs, and after the founding of the GDR in '49, Leipzig became the second largest city in East Germany. During the Cold War, the annual exhibition in Leipzig turned into a large-scale trade fair between the members of the Warsaw Pact.

After Gorbachev of the CPSU put forward a new idea in '86, the Leipzig exhibition also changed, and some West German companies tried to participate in the Leipzig exhibition in the spring.

After getting off the train, Liang Yuan pulled Liang Haiping and deliberately ran to the nose of the machine to take a look. As expected, the traction locomotive at Gotha Customs has been replaced by a West German Class 120 locomotive with a red and white painted East German Class 243 locomotive. Liang Yuan said to the square-headed and square-headed 243-type locomotive: "Uncle, this locomotive is called the 243-type electric locomotive, and it is also produced by the unified locomotive complex. ”

Liang Haiping glanced at it a few times and said, "This thing is really bad. Not only is it slower, but it also looks worse than the 120. ”

Liang Yuan said with a smile: "Uncle, that's your wrong target, this thing is much stronger than the domestic SS3 series electric locomotives." ”

In 88 years, China's first heavy-haul railway, which shouldered the export of Shanxi coal, the Daqin Railway was about to be completed and put into operation, but unfortunately the domestic electric locomotives could not shoulder the traction task in terms of quantity and quality, so in 85 years, the Ministry of Railways spent 300 million US dollars to purchase 150 sets of 8K electric locomotives and technical patents from the famous European 50 hertz group (Note 3).

Liang Haiping said suspiciously: "Xiaoyuan, this kind of low-speed electric locomotive, the Ministry of Railways has spent more than 100 million yuan to introduce it in developed countries, what else do we want to introduce him?"

The Ministry of Railways has hyped up in China that the customized 8K locomotive gathered the world's first-class excellent technology at that time, such as the electronic control system and GTO auxiliary inverter of the Swiss company Blanc-Bauvelli, the bogie of the French electric traction equipment company, the transmission gearbox of AEG, the main transformer, traction motor and auxiliary motor of Siemens, etc.

In Liang Yuan's view, the 8K locomotive is a complete hodgepodge, and it has to fight with India's dadly LCA fighter.

Liang Yuan said with a smile: "Now the atmosphere in the society Uncle also knows, many people think that the moon in the West is rounder than in China, and the things of socialist countries are completely backward, and the Soviet Union and Eastern European countries were not considered by the Ministry of Railways at all when they introduced electric locomotive technology. ”

"It's a pity that science and technology are not transferred by the will of the leader, that 8K locomotive is simply, uncle, think about it, what can be cooked out of delicious fish, meat, fruit, and toffee in a pot alone?"

"No, right? Such a simple question, can the big leaders see it?" Liang Haiping's answer still carried the simplicity unique to the Chinese people in the 80s.

Liang Yuan was choked by the simple Liang Haiping and had nothing to say. The 8K locomotive has not been retained as a sustainable development platform at all, but some fragments of advanced technology have been digested and used in the domestic "SS" series of electric locomotives. In the 21st century, the Chinese who have grown up are waving money and buying railway locomotive technology all over the world.

"Uncle, let me tell you, don't look at this 243 type nose is inconspicuous, this thing is definitely stronger than the 8K in the ministry. Liang Yuan said firmly.

After the reunification of Germany, the Type 243 locomotive was modernized by West Germany, with a simple replacement of electronic skid and gearbox. The maximum speed of the Type 243 was increased to 169 km/h. The most attractive thing about the 243 is its long service life and high reliability, and the Deutsche Bahn 103 and 120 series locomotives of its contemporaries have long been retired due to various problems before Liang Yuan wears it. And more than 600 Type 243s are still busy on the German freight line as always.

In the 21st century, General Electric bid for the C44-9 diesel locomotive on the Qinghai-Tibet Plateau. In fact, in the early 80s, the C36-7 diesel locomotive that was introduced by the turtle was gradually improved and developed, and the interchange ratio of parts between the two cars was as high as 68% - of course, this kind of slap in the face was solved by the Ministry of Railways to change the locomotive model.

The improvement mode of small steps and fast running on an excellent platform is the king of technology digestion and introduction.

Therefore, in Liang Yuan's eyes, there is no more suitable nose for the original platform than the East German Type 243 electric locomotive.

Liang Haiping said with a smile: "I just heard a few hours ago that you blew the 120 locomotive in West Germany into the sky, and now you are talking about how the 243 type is good, uncle, I see that your plan is no different from the 8K locomotive in the ministry."

"Alas, uncle, the difference is big. I mean digesting the good parts of the Type 243 on the basis of the Type 120, like the AC motor drive. The new braking system and so on are completely different from 8K. The ministry is simply a random patchwork......" Liang Yuan gushed endlessly to the Ministry of Railways.

"Okay, okay, anyway, Uncle believes in you, what do you say Uncle does. Liang Haiping rubbed Liang Yuan's hair and said.

Liang Yuan laughed and said: "Uncle and I are poor ghosts, and we can't compare with the wealth in the ministry. You can only find some backward goods here from the poor buddies. ”

The two men laughed and left the platform. Follow the flyover out of the train station. Standing in front of the square of Leipzig Station, Liang Yuan looked at the map in his hand for a while and said: "Uncle, let's go to the Third Hotel in Leipzig, which is very close to the exhibition hall, and the economic and trade delegation will live near there tomorrow."

On the right side of the square in front of the station, a neat row of East German-made Trabant taxis is parked, and two people walk over and get into the carriage. Liang Yuan pointed to the map to explain the location, the driver made a clear gesture, raised his hand to start the car, and the funny 2-stroke engine in Trabant first slammed and then slammed, and the taxi disappeared after a puff of green smoke.

The sign of the sickle and axe flashed from time to time outside the car window, and the portrait of Walter Ulbricht, the first generation leader of East Germany, could be seen everywhere on both sides of the street, and the slow-moving round-headed and round-headed two-section buses were left behind, and the Volga cars that often passed by the opposite side of the shoulder, although the style of the buildings was different, and the skin colors of the people around him were different, the familiar atmosphere still made Liang Yuan feel like he was in China.

The Third Hotel Leipzig is a 12-storey Soviet-style auditorium-style building, the exterior of the building is pasted with light gray wall tiles, and a large number of trees are planted seven or eight meters away from the building. Solemn, the taxi through the guò lane parked directly in front of the revolving door on the first floor, two people entered the hall, Liang Yuan first went to the front desk to check in, because the Chinese Premier had just finished his state visit to the GDR in July, so this time Liang Yuan was accurately identified by the front desk on the floor. Unfortunately, the restaurant does not serve Chinese food at all.

After entering the room, Liang Haiping looked around and couldn't find the air conditioner, turned on the electric fan in the corner and Liang Haiping said: "Xiaoyuan, this hotel looks very bright on the outside, but when I move in, I feel that it is far worse than the one in Bonn." ”

Liang Yuan almost laughed, thinking that Uncle's words were too philosophical, and the current East Germany and this hotel are really quite similar.

"Uncle, we will go out for a walk, go to the nearby store, and you will know what's going on when you come back. Liang Yuan said with a smile.

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