For the power transmission of railway locomotives, there are only two options: electric transmission and mechanical transmission. In the 1950s and 1960s, hydraulic mechanical transmission and electric transmission were running side by side. Especially in some industrial and mining enterprises, due to certain explosion-proof requirements, hydraulic transmission was even more dominant (note 1).

In the 1970s, with the rapid development of computer technology, mechatronic equipment such as electronic commutators came out of the laboratory, and new motors such as brushless DC motors were put into use, which caused the cost of high-power DC motors to plummet. Electric power transmission has made rapid progress in railway locomotives, while hydraulic transmission is gradually declining due to the power limitation of transmission components.

Therefore, no matter what kind of power Liang Yuan uses as the output core, there is actually only the electric transmission path for locomotive driving.

The Northeast Locomotive Factory has been in a downturn for so many years, and its real technical research and development power has long disappeared. It turns out that the production of shunt machines is also purchased from outside. The technical department of the car manufacturer can only do some simple installation, debugging and maintenance work.

When producing a 25S model undercarriage, as long as you pay attention to quality control, advanced equipment, and qualified raw materials, a group of technicians and blue-collar workers will be enough to handle it. The real power system will not work with this method. Without a solid R&D team, you will always have to follow others and even localization will be difficult.

"Uncle, the country has supported the third-tier construction a few years ago. Many technicians have gone out from Liaoning. Some of these people must have had the idea of ​​returning home. Uncle can discuss it with the Ministry. Northeast Locomotive Factory provides a large number of technical positions and welfare housing in Shengjing. We accept all engineers who have the idea of ​​returning home. This should be a win-win thing." Liang Yuan said with emotion.

In the late 1980s, the old industrial base in Northeast China still had the last trace of afterglow. For example, the Shanda Expressway, China's first highway, was under intense construction. Liaoning's infrastructure and living standards were still first-class in China. For some technicians living in the third-tier areas such as the old, young, and border areas, returning home is quite tempting.

In Liang Yuan's memory, the Sichuan-Ziyang Locomotive Factory, which the Ministry of Railways focused on supporting, was built by the Dalian Locomotive Factory in the 1960s. The great man waved his hand. Countless passionate young people gave up their superior life in big cities and ran to the deep mountains and old forests to build equipment and factories. The group of people are now in their forties and fifties. They are approaching the age of retirement, and it is normal to have some fallen leaves returning to their roots.

"Xiaoyuan, how many people are you planning to come?" Liang Haiping asked.

How many people, Liang Yuan thought about the Canadian Bombardier Consortium in his previous life, and the thousands of R&D personnel said slowly: "At least more than 100 people, my uncle can tell the department that although we have been recruited, we will not lose the spirit of self-reliance. We will raise the R&D funds ourselves, and the department will only be responsible for transferring people."

A large-scale flow of talents like this with relatively strong professionalism can only be achieved through administrative orders from the Ministry of Railways.

"Not to consider the high-voltage electrical component. The localization of the 243-head electric transmission and vehicle body structure must be carried out in Benxi first. If Zhuzhou Factory is anxious, you can send employees here. When we understand, we can deal with the 243-head head as much as we want."

The two chatted all the way. It was not until Zhou Heng drove the car into the residential area of ​​909 that he had discussed the price code for handing over the 243 electric locomotive to the Ministry of Railways.

"Uncle Xiao, Uncle Xiao Zhou, don't go to the hotel either. There is no one here today. My mother and Grandpa Wu have not come back in Nanhu Science and Technology Park. Forget about dealing with you here for one night."

Liang Yuan pushed open Volga's car door and spoke as he got out of the car.

Liang Haiping nodded and signaled Zhou Heng to park his car under the courtyard wall of the community, and then stood downstairs with Liang Yuan and watched Zhou Heng park.

"Xiaoyuan, do you think you have long been planning the gas turbine your mother developed?" Liang Haiping looked at Liang Yuan with a smile and asked.

"Uncle, you don't think that the gas turbine my mother researched can be moved to the motorcycle for power." Liang Yuan said with a wry smile.

Although Li Yuanling made the Spey gas turbine and Liang Yuan planned to use it as a turboshaft engine for the locomotive power, the Spey's power is too high for railway locomotives. With the Spey gas turbine's current fuel consumption rate of 297 grams of kilowatt-hour, it requires 2.8 tons of fuel to be consumed for every hour of operation. No matter which road bureau sees this kind of fuel consumption data, it will go crazy and has no value for loading the vehicle.

Liang Yuan told Liang Haiping the fuel consumption data of SBE gas turbine, and then said: "Uncle, the advantage of a gas turbine is that it can operate at full load in just ten seconds after starting the machine. There is no need to slowly increase the power like a diesel engine, but the disadvantage is also on this. The fuel consumption curve of this thing is basically horizontal, and the fuel consumption rate is similar when running full power and low power."

"So gas turbines suitable for railway locomotive installations are preferably small-power units of 600 kilowatts to 1,000 kilowatts. Four sets of power units are used when loading. When the locomotive continues to traction, one or two of the gas turbines can be turned off to reduce the use cost of the locomotive."

"Installing four gas turbines? Can it be installed?" Liang Haiping asked in confusion.

Liang Haiping has also seen the appearance of the Spey gas turbine. It is more than seven meters long, more than two meters wide, and more than three meters high. In terms of the space of a railway locomotive, it can be equipped with two units at the top of the sky.

Liang Yuan smiled and said, "Uncle, the turboshaft engine I mentioned is only one meter long, half a meter high, and half a meter wide. Not to mention four units, it can be installed even if it doubles."

"Uncle, don't expect my mother to change Spee to smaller, that thing is too complicated." Liang Yuan said as he looked at Liang Haiping's expression and stopped.

"Uncle, don't look like you're on a pirate ship? My mother can't count on the gas turbine, but you can count on others if you can't count on it," Liang Yuan looked at Liang Haiping and said with a smile.

"Xiaoyuan, when can you change your habit? Don't always say it. My uncle just brags with the leaders of the department, and you tell me that the power core of the gas turbine motorcycle is still not visible," Liang Haiping said helplessly.

Liang Yuan grabbed his hair and said embarrassedly: "This matter is a long story. I've been looking for information these days and I'm going to get a clue to it and tell my uncle in detail."

"Xiaoyuan is going to introduce technology abroad," asked Liang Haiping.

Liang Yuan nodded and said, "This aspect requires cooperation from the Ministry. My uncle can tell the Ministry that the gas turbine locomotive project mainly focuses on the construction of the Qinghai-Tibet Railway. Can the Ministry establish a development project for the Qinghai-Tibet Railway traction locomotive, and then hand over the project to the car factory in the form of bidding. In this way, we can feel at ease if we invest heavily in research and development."

After spending a long time with Liang Yuan, Liang Haiping has a deeper understanding of Liang Yuan’s style of doing things. After thinking about it, he suddenly realized it.

"Xiaoyuan, you are planning to introduce the small gas turbine you mentioned abroad under the guise of the Ministry of Railways."

"Tell me, what country to go to this time? But Xiaoyuan, our foreign exchange is almost gone." Liang Haiping looked at Liang Yuan curiously with his eyes.

Without the Ministry of Railways, how could Liang Yuan fool the engine technology internationally? Looking at Liang Haiping's curious expression, Liang Yuan stretched out his right hand, rubbed his thumb and index finger, and smiled and said, "Don't worry, uncle, the US dollar will have land."

Note 1: Sparks are prone to occur when the brushed motor is running.

This was reviewed by me and was changed for 10 minutes (to be continued...)
Chapter completed!