60s researcher

Time passed quickly, and the researchers from the Capital Machinery Factory returned to the capital after their studies, leaving only Qiu Zitong and Wan Wanran, who will continue to stay in the electrical factory for another month under the name of secondment.

Zhao Lei went home recently, and I don't know how I told his mother that Liu Ping never came to the technical department to look for him again, but Qiu Zitong still came to look for Zhao Lei often, which made him afraid to go to the cafeteria to eat. Every time someone else takes it.

Lu Jian finished drawing the last part of the day, and checked the time. It was already past seven o'clock. He stood up and stretched his muscles, and decided to go to Xu Yan's side to take a look.

When Lu saw it, there were only Xu Yan, Zhao Lei and Jian Mingyuan inside.

"Just the three of you?" Lu Jian was a little surprised.

"After working overtime for several days in a row, I asked him to go back first." Xu Yan just finished something and was drinking water, while Jian Mingyuan and Zhao Lei still bowed their heads and concentrated on their own work.

"Are you making gearboxes now?" Lu Jian looked at the things on the table.

"Yes."

"The hydraulic automatic transmission you are making now, is the hydraulic torque converter ready?"

"Look, this is it." Xu Yan got up and took out a torque converter from a box on the side and put it on the table in front of Lu Jian.

"This is a closed chamber, pump wheel, turbine and guide wheel. When the output speed is zero, the zero-speed torque conversion coefficient is about 2-6. There is no rigid connection between the working components, and the input shaft and the output shaft are all connected by liquid. connect……"

"How is your impeller designed?" Lu Jian held the torque converter and began to observe.

"The blades are curved and installed inside the impeller. The impeller and the torque converter casing form a whole, and a guide ring is installed on the inner edge of the blade." Xu Yan took out another drawing of the impeller and handed it to Lu Jian.

"The hydraulic torque converter we designed has a high efficiency near the rated working condition, and the highest efficiency is between 85% and 92%." Xu Yan was obviously very happy when he mentioned this data.

"Oh, this efficiency is really good." Lu Jian was also a little surprised.

"This time we are using a forward-rotating single-stage hydraulic torque converter. Although it has good automatic adaptability and can improve the service life and performance of the machine, it is relatively slow in response and consumes more fuel." Xu Yan was still a little dissatisfied.

"Don't be too demanding, this is a great improvement from the previous one." Lu Jian patted him on the shoulder to understand his thoughts.

"Xu Gong, take a look here." Suddenly Jian Mingyuan called Xu Yan, Xu Yan hurried over, and Lu Jian followed behind.

"what happened?"

"Let's see if this band brake can be replaced with a disk brake, and then add a one-way free wheel structure." Jian Mingyuan pointed to a place, and spoke in a hurry.

"Okay, that's more stable when changing gears." Hearing his thoughts, Xu Yan was also very excited.

"Then I'll change it right now." Jian Mingyuan began to change it as he spoke.

"I'll help you." Xu Yan also sat next to him, and the two started to fight while exchanging opinions.

Seeing that they were all busy, Lu Jian didn't disturb them, and found a place to continue drawing his drawings.

"Dong dong." There was a knock on the door of the laboratory, and Lu Jian looked up, and it turned out to be Qiu Zitong and Wan Wanran.The two stood at the door, holding a thermos bottle in their hands.

"What's the matter?" Lu Jian glanced at Zhao Lei, and found that they were still concentrating on their work, not paying attention to the person standing at the door.

"Seeing that you are so busy and it's so hot, we cooked some mung bean soup." Qiu Zitong didn't hesitate at all, and came in with his things. Although she was talking to Lu Jian, she kept looking at Zhao Lei.

"No, you'd better take it back." Lu Jian didn't want to ask for trouble, so he refused directly.

"Gong Lu, you have taken such good care of us, and you have been our teachers for several days. We just want to express our gratitude by making this soup." Wan Wanran, who had been following Qiu Zitong, was about to get angry when he saw his good friend, and immediately stood up. Stepping in front of her, he put his arm against her shoulder.

"..." Lu Jian was silent, it was really hard to refuse for a while.

"We're going to stay here for another month, so take this soup as asking comrades to teach us more tuition fees." Wan Wanran smiled all over her face, looking very good-natured, Lu Jian really couldn't say anything more.

"Then you put it away first, they are still busy." Lu Jian had no choice but to let them put down the things, then glanced at the door, motioning for the two of them to leave.

"Are you guys making gearboxes now?" As if he couldn't understand Lu Jian's wink, Qiu Zitong walked directly to Zhao Lei with Wan Wanran.

"Ah, why are you guys?" Zhao Lei was jingling in the corner by himself, when suddenly two people appeared beside him, startled him, and immediately called out, all eyes were on their side for a while .

"Give me mung bean soup!" Qiu Zitong waved the mung bean soup in his hand.

"Xu Gong, Jian Gong will drink the mung bean soup first, and put ice cubes in it, otherwise it won't be cold later." Seeing that Qiu Zitong was only staring at Zhao Lei, Wan Wanran hurriedly greeted the other two.

"Okay." Xu Yan agreed directly because he didn't think it was a big deal to watch the excitement.

"Zhao Lei is here to drink mung bean soup." Xu Yan pulled Jian Mingyuan to sit at the table in the middle, and called Zhao Lei and Lu Jian to come over by the way.

Qiu Zitong was very happy, and pulled Zhao Lei's sleeve, pulling him into the middle.

Qiu Zitong first poured a full glass for Zhao Lei, and then gave the thermos bottle to Wan Wanran.Wan Wanran shook his head and was about to pour it for the other three, but Xu Yan took it directly and poured it himself.

"Let's do it ourselves."

"Mr. Zhao, are you making gearboxes? Can Wanran and I join in?" Qiu Zitong sat next to Zhao Lei, and when he spoke to Zhao Lei, his face was full of coquettishness, and when he saw them talking to Lu, he was proud. totally different.

"The person in charge of the project is XCMG, and this is out of my control." Zhao Lei directly blamed the situation.

"Xugong, Qiu Zitong and I have both been interns in automobile factories before. We must know this gearbox and can definitely help. Why don't we help together?" Afraid that Qiu Zitong might say something wrong again, Wan Wanran rushed ahead of her I opened my mouth.

"This..." Xu Yan glanced at Zhao Lei who had been winking at him, and for a moment didn't know whether to agree or refuse.

"Gong Ye should have arranged for you to do other things, right?" Xu Yan still decided to work hard for his brother.

"Not yet. Ye Gong asked us to follow them to check the machine first, and then arrange it after he thinks about it. He also told us that we can find him if we have any ideas, and he will try his best to arrange it."

"..." Xu Yan was silent, and looked at Lu Jian, who seemed to have not seen him, and kept drinking the mung bean soup in his cup.

"Otherwise, let's go to Ye Gong to apply for it?" Seeing that Xu Yan was silent, Wan Wanran said another sentence.

"Ahem, then you all come to work." After Ye Gong had spoken, they knew something about gearboxes, so Xu Yan had no choice but to agree.

"That's great, we can work together in the future, I'll help you." Hearing Xu Yan's promise, Qiu Zitong immediately looked at Zhao Lei happily, while Zhao Lei had an extremely depressed expression.

"Uh, you should help Mr. Jian, Mr. Zhao has enough manpower."

"I..." Qiu Zitong wanted to speak again, but Wan Wanran stopped him.

"Okay." Wan Wanran agreed happily.

"It's getting late now, you should go back first. Come back tomorrow." Lu Jian checked the time, picked up the empty thermos bottle and handed it to Wan Wanran.

"Okay." Stopping Qiu Zitong who was still talking, Wan Wanran took the empty thermos and left with Qiu Zitong.

"Ah, why am I so unlucky." Zhao Lei covered his head in pain.

Lu Jian looked at the two girls who left, but felt that the girl named Wan Wanran was very smart, and she knew how to speak and act with restraint. No wonder Qiu Zitong's parents would rest assured to let the two of them stay.

"Wanran, let go, I haven't finished talking yet."

"Let go." Qiu Zitong was very unhappy, and wanted to tear Wan Wanran's hand away, but Wan Wanran kept holding on tightly, and pulled her to a place where no one was around before letting go of her.

"Zitong, can't you see? Zhao Lei doesn't like you, and even Xugong and the others don't have a good opinion of you." Wan Wanran pressed her shoulder to prevent her from running away.

"That's because they don't understand me." Qiu Zitong stopped, trying to put on a haughty look.

"I know that time is tight and you are in a hurry, but you have to take your time, otherwise it will backfire. If you behave well, Zhao Lei will definitely find you good."

"Of course."

"There is also Zitong, you should talk to Lu Gong and the others with a better attitude and be more humble in the future, and don't always point fingers when you don't like it." Wan Wanran really has a headache, Qiu Zitong was under the protection of the Qiu family before with.They were all respected old researchers, and they were good friends with Grandpa Qiu. Qiu Zitong's personality was quite lively and likable.

As a result, when she got here, she committed some of her minor problems.Naive, conceited, and a little defiant, with a ladylike temper.

"Understood." Qiu Zitong pouted unhappily. Wan Wanran had asked her this question several times, but she just couldn't help it.

"Once you know it, you can do it. No one will manipulate you outside." Wan Wanran nodded her forehead.Wan Wanran's family conditions are not good, she almost dropped out of high school to get married, and Qiu Zitong took out all her pocket money to help Wan Wanran after she found out, otherwise she would never have become a researcher like she is now.So she has always been very grateful to Qiu Zitong, and vowed to do her best to make her happy.

Although she also knows that Qiu Zitong has these problems, but like her relatives, she is not willing to experience setbacks, and has been helping her and protecting her.

The two of them returned to the dormitory after finishing their conversation, and were going to help the laboratory tomorrow.