Niu Xiaoqiang smiled and nodded: "Since that's the case, I'll take it, although you prepared a gift for me, I didn't prepare it for you, I'm really embarrassed." ”

Zhang Xiaolan smiled and waved her hand: "You have given me so much help in the United States, and you have earned so much extra money with me, these are not much more expensive than the gifts I gave you?"

Zhang Xiaolan only met Zhang Guangmao in the evening, and she never found a chance to talk to her father in detail, and she didn't even have time to send out the New Year's gifts purchased from the United States.

As soon as Zhang Guangmao heard this, he immediately said with curiosity: "Xiaolan, how much money did Xiaoqiang earn with you?"

Zhang Xiaolan didn't hide it, explained the situation in detail, and finally said with a smile: "If it weren't for Xiaoqiang taking me, I wouldn't even be able to repay the arrears, let alone have the money to buy gifts for you, all the gifts have been stored by me in the guest house, and I will give them to you tomorrow." ”

Zhang Guangmao was relieved, and reached out to pat Zhang Xiaolan's shoulder: "Okay, good, very good, Xiaolan, you will follow Xiaoqiang in the future, and you can have a big future." ”

Zhang Xiaolan smiled and looked at Niu Xiaoqiang: "Dad, you don't know, I am going to invest in a TV accessories factory in China, and Xiaoqiang needs help in this matter. ”

This news made Zhang Guangmao even happier, he was almost unable to close his mouth with a smile, and he would not say anything else except to say yes vigorously.

After being happy, Zhang Guangmao turned his head to look at Niu Xiaoqiang: "Xiaoqiang, uncle still has to be cheeky and beg you, please be sure to take care of Xiaolan, if she has a good life in the future, even if my father dies, I will have no regrets." ”

Niu Xiaoqiang hurriedly waved his hand: "Uncle, what are you talking about? You can't talk nonsense during the Chinese New Year, I will find someone to implement Xiaolan's matter to ensure that she will not lose money." ”

The three of them sat and chatted for about ten minutes, and Niu Qiuxiang's voice came from outside the door: "Little brother, Chen Fanghua and they are here, saying that they want to talk to you about something." ”

Niu Xiaoqiang agreed, and smiled embarrassedly at Zhang Guangmao's father and daughter: "I only come back once in half a year, there are too many things, I'm really sorry." ”

The two stood up very interestingly, indicating that they could continue to talk when they had time in the future. The three of them went downstairs together and met Jiang Hongchang, Chen Fanghua and Li Xiaofeng in the living room on the first floor.

As soon as the three of them met, they nodded to Niu Xiaoqiang again and again, and their attitude was very respectful.

Niu Xiaoqiang looked at his watch and said with a wry smile: "It's almost half past ten now, why do you have to come to me so late?"

Jiang Hongchang scratched his head, "First, we want to thank Secretary Niu for his affirmation of us, which allowed us to win the Outstanding Employee Award, and secondly, we want to talk to you about new R&D projects." ”

Niu Xiaoqiang is not interested in the former, but he is very interested in the latter. If this new technology was not very valuable, it would be absolutely impossible for the three of them to come to themselves in such a hurry.

He beckoned to the three of them: "Let's go, let's go upstairs and talk." ”

Niu Xiaoqiang directly brought the three of them into the study, made tea for the three of them, and then sat down and asked, "Say, what is the new technology that makes you pay so much attention?"

This time it was Li Xiaofeng's turn to speak: "We call this technology continuously variable speed technology." ”

Niu Xiaoqiang has heard of this technology: "Do you really have the ability to develop continuously variable speed technology? ”

Li Xiaofeng smiled slightly: "Of course, there is no problem with this, the continuously variable speed technology is to use the transmission belt and the main and driven wheels with variable working diameter to cooperate with each other to transmit power." ”

The three of them were obviously prepared, Li Xiaofeng said this, took out a piece of paper from his pocket, pointed to the simple graphic on it, and said: "Look here, this is the sketch we have drawn, as long as the gearbox is installed with this device, the transmission ratio can be continuously changed, so that the transmission system and the engine can achieve the most perfect operation effect." ”

The advantages of continuously variable transmission technology do not stop there, the biggest advantage is that it can reduce the frustration when changing gears, and reduce the number of gear changes, so that the driver can have a better driving experience.

Of course, there are drawbacks. The main reason is to increase the cost of maintenance. Regardless of the equipment, the more complex it is, the more likely it is to go wrong, and if you add continuously variable transmission technology to the car, it will increase the complexity and the cost of repairing and maintaining.

In addition to this, continuously variable transmission technology will also increase the fuel consumption of the vehicle. For family cars, because they are not used too often and their own displacement is relatively small, the increase in fuel consumption is still bearable. But if it is a vehicle specially used for transportation, then it is impossible not to consider the cost.

For example, trucks have a much larger displacement than family cars and have a higher usage rate, so it is better not to use continuously variable transmission technology.

Niu Xiaoqiang looked at the drawings very carefully, and found that the three of them had drawn a good look, he had a bottom in his heart, raised his head and said: "The sketch you drew is quite passable, if you have any needs, even if you put it forward, I will definitely try my best to meet the conditions that can be given." ”

Continuously variable speed technology is a new technology that Niu Xiaoqiang learned about in Packard Automobile Company, this technology is a relatively cutting-edge topic in the world, and there is no relevant research and development plan in China.

Sam is a more thoughtful person, and he is also very forward-looking, and he has been eyeing continuously variable transmission technology early. It's a pity that after two or three years of tinkering, there is still no improvement.

The main reason is that Sam does not have the matching materials in his hands, although he can design drawings that meet the practical application level, but the materials are not up to par, and everything is in vain.

Based on Sam's trial and error, he found that the most critical link was the transmission belt.

The transmission belt is the main part connecting the continuously variable transmission and the engine transmission shaft, once the car is running normally, the transmission belt needs to withstand ultra-high temperature and wear, and the existing materials are not up to the design requirements.

If soft materials are used, such as belts, they can only last for a short time, and the transmission effect is not too good to be practically applied.

If the metal transmission belt is made from the same metal material used to make the gear, the effect is even worse, it will break at every turn, or it will need to be replaced frequently because it wears out too quickly, which will increase the maintenance cost, so the metal transmission belt cannot be used in practical applications.

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