When Yu Chun'an heard Feng Xiaochen say the word "sleepy oil" in his mouth, he fully understood: this little director has a real thing in his belly. Perhaps Lin Bei Heavy Machinery is just a trick this time, and Peng Haiyang is just a cover. The real ability is this young director who pretends to be stupid.

Hydraulic parts rely on liquid to transmit pressure. Under the action of external forces, hydraulic oil is pressed from the low pressure zone to the high pressure zone, or is released from the high pressure zone to the low pressure zone, and instantaneous pressure changes will occur. This phenomenon is called trapped oil. The reason for this name is probably because during this process, hydraulic oil is controlled in a closed cavity, like a trapped beast.

Sleeping oil will cause a torrent of the liquid, which will increase the temperature of the liquid and make some whistling sounds. In daily life, we occasionally hear the tap water pipes at home squeaking. This is the result of the oil trapping phenomenon, which is caused by the sudden change in the water pressure in the water pipe.

The issue of noise generated by trapped oil is common sense for later hydraulic technicians. However, in those days, because the noise problem was not taken seriously, many technicians were not aware of this or had not studied this issue in depth.

Before Feng Xiaochen came just now, Yu Chun'an and several workers also talked about the issue of trapped oil. Everyone vaguely felt that the occurrence of noise may have some relationship with trapped oil. But in which part of the specific location, the impact was too great, everyone was still not sure. In addition, whether there are other factors that cause noise is also the topic they discussed, and everyone still had some arguments.

Feng Xiaochen was in charge of the domestic research on hydraulic parts in his previous life. He worked with many top technicians for a while and also saw them dissecting many types of hydraulic parts and evaluating various hydraulic parts. The axial plunger hydraulic pump that Yu Chun'an and others are thinking about is a traditional product and is widely used in the mechanical field, so Feng Xiaochen also came into contact with it. As early as when Yu Chun'an raised the noise issue, Feng Xiaochen had already remembered the conclusion of later generations, that is, the main source of noise of this plunger pump is the oil trapping phenomenon caused by improper design of the oil distribution plate.

He didn't say what he knew at first, because he wanted to find out what Yu Chun'an and others were. As a result, Yu Chun'an and others didn't speak, but Han Jiangyue came out to challenge him, mocking him for not knowing skills in his words. Feng Xiaochen no longer pretended to be low-key, and he decided to use his strength to win respect for himself.

"Yes, I am worthy of being the director of a large factory." He Guihua raised a thumbs up and praised Feng Xiaochen. Feng Xiaochen's ability to say the word "sleeping oil" proves his strength. You must know that not everyone in the technical department of Xinmin Factory can say these two words.

"Brave, right?" Han Jiangyue said half-believingly. She really didn't believe Feng Xiaochen knew what sleepy oil was. At least she had never heard of sleepy oil before today. It was when everyone was analyzing the hydraulic pump together that she heard Yu Chun'an talk about this. She turned her head and looked at Yu Chun'an and said, "Secretary Yu, is this what you told him?"

Yu Chun'an waved his hand and said, "No, no, I have never told Director Feng about hydraulic pumps. Director Feng is very knowledgeable and can be clearly seen at a glance."

"I don't believe it." Han Jiangyue said with a tough bullet, "It must be where he heard it."

"Of course I heard it from other places." Feng Xiaochen said with confidence, "I am not an inventor, so how could I invent a new word."

"Even if you know..."

Han Jiangyue was about to make up another reason to belittle Feng Xiaochen. Yu Chun'an interrupted her and said to Feng Xiaochen: "Director Feng, you just said that asymmetric oil mixing pans will produce trapped oil. What is the asymmetrical oil mixing pan? How can it solve the problem of trapped oil?"

Feng Xiaochen said: "The emergence of noise is caused by the torrent caused by trapping oil. The solution to the problem is to design an unloading structure in the trapping oil area, which can make the pressure transition of the internal oil chamber as smooth as possible. Let's take a look..."

Speaking of this, he pulled a drawing on the workbench, picked up the pencil on the drawing, and drew a schematic diagram for everyone:

"We design a pre-pressure tank at the outlet position to pre-compress the hydraulic oil instead of being pressed to the extreme at once. Similarly, at the inlet position, design a pre-expansion tank to release the pressure of the hydraulic oil in advance. In this way, the pressurization and release process is lengthened, and there will be no instantaneous oil pressure changes, so there will be no torrential noise."

"It's amazing!" Ye Jiansheng slapped his thigh, "If you do this, you don't need to change the entire oil pump structure, just change the oil tray, which is very easy."

"It's really wonderful. You only need to open two bevels on the oil mixing plate, one forward and the other reverse. Oh, why didn't I expect it!" Yu Chun'an said happily and annoyedly. He had also thought about the problem of trapping oil before, and had always thought about the oil inlet and oil output of the oil mixing plate, and did not think about the idea of ​​designing the unloading tank. At this time, when Feng Xiaochen said it, he suddenly realized that this problem had such a simple solution.

"Section Chief Yu, what he said is really useful?" Han Jiangyue pulled Yu Chun'an's corner of clothes and asked in a low voice. Although she was a very smart young worker, she was far less familiar with the principles of hydraulic pumps than Yu Chun'an and several masters, so she couldn't hear whether Feng Xiaochen's opinion was right or wrong. Seeing that Ye Jiansheng and Yu Chun'an were both claiming it was wonderful, she was shocked. Could it be that this disgusting little director really proposed a wonderful solution?

"It's totally useful!" Yu Chun'an said affirmatively, "I have seen the idea of ​​opening a load unloading tank in the past, but I can't contact it when I use it. Director Feng is really superb and can actually think of such a good way."

"Hmph!" Han Jiangyue snorted again, and the eyes of Feng Xiaochen were a little complicated.

He Guihua looked at the drawings, picked up the oil tray and looked at it, nodded and said, "I also think this is effective. Section Chief Yu, why don't we try it first?"

"Yes, try it." Yu Chun'an said, rubbing his hands excitedly, his face full of excitement, not at all the way when Feng Xiaochen saw him in the morning. It seemed that this gentleman was also a person of temperament, but he had not met someone worthy of his dealings, so he became a dull gourd.

"Director Feng, look at the pre-pressure angle, how much appropriate it is to open." Yu Chunan pulled Feng Xiaochen and asked in a tone of advice.

Feng Xiaochen shook his head and said, "I'm not professional. What I just said is also what I see from the information. I don't work from the specific perspective."

"Director Feng is so humble. If you don't work, then no one in our entire Xinmin Factory dares to say that he is effective." Ye Jiansheng said in a complimentary tone next to him. Before, they were very polite to Feng Xiaochen, but that was just because Feng Xiaochen was the director from a foreign factory, and they had to give him some face. Now, Ye Jiansheng's attitude is completely out of sincerity, which is the respect Feng Xiaochen earned with his own abilities.

Yu Chun'an did not force Feng Xiaochen. He was a major in mechanical science and knew that calculations like this could not be done casually. Feng Xiaochen said that he didn't know it, and it was entirely the truth. He stroked his forehead with his hand and thought for a while, wrote a few parameters on the drawing, and then handed it to He Guihua, saying, "Master He, you can try changing an oil tray from this angle first. If it works, I will do some more accurate calculations."

"Okay!" He Guihua agreed, took the drawings and walked out. Han Jiangyue quickly ran over. Milling machines were required to make slots on the oil distribution plate. They both went to the metalworking workshop. The fitter is a very comprehensive job. Many fitters can operate the machine tool. Sometimes some parts have defects and need to be reworked on the machine tool for a little, and some fitters do it themselves.

In the morning, Feng Xiaochen saw Han Jiangyue’s milling machine in the metalworking workshop. It was not strange. He Guihua’s milling machine operation and lathe operation were more proficient than Han Jiangyue. Even in front of milling workers and turning workers in the metalworking workshop, his skills were still ranked first.

It took some time to process the oil-dressing plate. Yu Chun'an sent Ye Jiansheng and Zou Sulin to work first, and accompanied Feng Xiaochen to the outside of the workshop. After standing under the tree, Yu Chun'an took the initiative to take out a cigarette and handed one to Feng Xiaochen.

"Thank you." Feng Xiaochen took the cigarette, took out a lighter from his pocket, first helped Yu Chun'an lit the cigarette, and then lit it for himself. Feng Xiaochen in later generations did not smoke, and his smoking habit in this life was inherited from the possessed Feng Xiaochen. In normal times, he would not smoke by himself, but he could deal with it when he was dating people. In that era, the emphasis was on not being able to separate cigarettes and alcohol, especially when going to factories. If you don't know how to smoke, your relationship with the workers would even be a little distant.

"Secretary Yu, do you do not need to be approved by the technical department to modify the design of the hydraulic pump like this?" Feng Xiaochen asked curiously.

Yu Chun'an spit out a mouthful of cigarettes and said sarcastically: "Wait for them to approve, then nothing can be done."

"At first of all this?" Feng Xiaochen said.

Yu Chun'an said: "Director Feng..."

"Section Chief Yu should call me Xiao Feng." Feng Xiaochen interrupted Yu Chun'an and said. In the morning, he had requested this, but Yu Chun'an ruthlessly refused. Now he wanted to try again to see if the skill he had just revealed could dispel Yu Chun'an's grudge against him.

Yu Chunan was stunned for a moment, then laughed and said, "Okay, then I'll call you Xiao Feng. Don't call Section Chief Yu at once, just call me Lao Yu."
Chapter completed!