It is Zhao Guodong's business to straighten out the order in the factory. Qin Zhenhua only makes suggestions. Zhao Guodong is not afraid of offending anyone anyway. To develop a new diesel engine, it is necessary to build a research and development team and determine the technical route. From now on, it can be regarded as being on the right track.
Everyone's emotions have been aroused.
"Humph, every time I see Lao Zhang, he is like that, aloof and condescending. They don't look down on us at all."
"When it comes to technology, they are like experts and we are like idiots. It turns out that they have always despised us."
"That's right, we absolutely cannot lose to them!"
Everyone began to talk. At this time, since everyone was sitting, they could only hear voices and could not see other people's figures across several tables. In fact, the first person to speak was Qin Zhenhua.
The masters of the maintenance workshop are arranged to take the lead. When they complain, people will naturally follow suit, and then public opinion is formed.
Their Coal Province Diesel Engine Factory, relying on its unique advantages in diesel engine technology, looks down upon us!
"We can't lose to them if we don't fight for steamed buns and reputation."
"Yes, that's right, their engine has 700 horsepower, and we can make one thousand horsepower. As long as we put our heads together, we can definitely do it!"
Having said that, it was almost done. Qin Zhenhua looked at everyone and kept nodding: "Yes, that's right, as long as we make up our minds, we will definitely succeed. Didn't they also produce diesel engines at the beginning? Now, we just don't accept this tone.
, we must complete this tough battle. Now, let’s discuss in detail what technical route we should take to achieve this performance indicator.”
Now that we have a common goal, the next step is to strive for this common goal. It is definitely not easy to achieve an output of one thousand horsepower.
Seeing that everyone calmed down and fell into thinking, Qin Zhenhua was the first to speak: "Our previous engines were all supercharged, which consumes power. Now, the mainstream in the world is turbocharged. This turbocharger
The technical content of the voltage regulator is quite high, and I am mainly responsible for scientific research in this area."
Mechanical supercharging drives a supercharger on the engine. The faster the engine speeds, the more air is blown in. This is the most direct and without delay, but it will waste a certain amount of power. Therefore, new diesel engines are starting to
Using an exhaust gas turbocharger, the exhaust gas emitted by the engine is useless anyway. Let it push the turbine blades to rotate, blow in more air, and increase the power output. Although there will be lag, it will not be wasted.
Mechanical power is a trend.
"Can you make a turbocharger?" Uruihua spoke for the first time. Just now, he had been listening to everyone. He was a bystander and kept a clear mind. Now, this young man said that he can
Making this component with the highest technological content, I couldn't help but raise questions.
This is a complex component. The processing of the blades requires high precision and material requirements. When working at full power, the entire supercharger will be roasted red by the exhaust gas discharged from the engine. At the same time, the turbine blades inside are enough
With tens of thousands of revolutions, the ball bearings there are not that easy to make.
Qin Zhenhua nodded: "We have already introduced CNC machine tools from abroad. When the advanced foreign processing machine tools are in place, we will be more confident."
"However, CNC machine tools are not something that ordinary people can operate." Wu Ruihua certainly knew how difficult it was. When the No. 1 Machinery Factory developed its own set of CNC machine tools, Wu Ruihua also went there to help.
"I am an ordinary person." Qin Zhenhua said with a smile, "This is all mine."
U Ruihua nodded: "If turbocharging can be done, then it can be attached to our existing engine and the piston connecting rod can be strengthened, which will definitely improve the power."
This is also the first technical route that everyone can think of. After all, our foundation is weak, and using the existing 150 series diesel engines to improve it is the safest solution.
Domestic research and development has never been carried out in the country. It is all about surveying, mapping and copying, which is the fastest way. However, the disadvantage is that the technology cannot be fully understood. It is not clear why it is designed in this way, so it cannot be improved.
Just one improvement requires many detours. As for forward research and development, don't even think about it.
"That's right, let's build a turbocharged 150 engine!" Yang Zicheng quite agreed with Wu Ruihua's plan.
Turbocharging presses in more air and injects more fuel, so that the power can be increased with the same displacement.
"Everyone, we are all technical talents in the engine field. Think about it, if we only rely on external turbines, can we achieve the target of one thousand horsepower?" Qin Zhenhua asked everyone: "Compared with the current products, we can improve
How old is it?”
These people were all carefully selected. Although they were just workshop workers who produced diesel engines, they all had sufficient theoretical knowledge. Soon, Wu Ruihua gave the answer: "It can increase by 50%.
One hundred horsepower, if it reaches 750 horsepower, it will be the end."
Qin Zhenhua admired this old master. When he went to the casting workshop for the first time that day, the old master invented a new coal stove, which showed that he always liked to think about it.
The answer he gave is very reliable. In fact, the 730-horsepower diesel engine currently developed by the Coal Province Diesel Engine Factory follows this technical route.
The original foundation limits the performance improvement of this engine. This is the conclusion Qin Zhenhua has already given.
"Yes." Wu Ruihua said: "It will not be easy to continue to increase power, unless..."
"Unless the speed is increased." Yang Zicheng took over his words. Now, in the cafeteria, the atmosphere of the discussion has become heated.
The horsepower of the engine actually depends on how much work it does per unit time. On the one hand, it can increase the gas thrust that pushes the piston every time. On the other hand, it can make the diesel burn more times in the same time, which means increasing the speed.
.
"No, if you want to increase the speed, the connecting rod of our engine is too long and it is inconvenient to move back and forth. Unless you use a short connecting rod. In this way, the structure of the entire engine will be changed."
Finally we got to the point. If you want to increase the speed, you have to make the distance back and forth shorter. That is, the pistons and connecting rods have to be short. In fact, the engine of the Leopard-2 tank works like this.
According to the technical route, our own engine only has 2,000 revolutions per minute, while the Leopard-2 engine has 2,600 revolutions per minute, with a power of an incredible 1,500 horsepower.
We don't have to be so outrageous, just 2,400 rpm is enough. Otherwise, we have to carry a big butt like the Leopard-2. The rotation speed is so high, the heat is too high, and the result is not worth the gain.
"The truth has been refuted, and our technical route is ready to come out." Qin Zhenhua said: "Turbocharging, reducing the length of the piston connecting rod, increasing the speed. Under the premise of this big goal, we improve the existing engine
…”
When he said this, Qin Zhenhua stopped, because Wang Erzhu hurried in from outside.
"What? Jump off the building? Is he a man? How can he be like a girl!" After hearing Wang Erzhu's words, Qin Zhenhua couldn't help but curse in a low voice with disdain.