Chapter 549: Turbocharged

The motherland is thriving, and all walks of life need precision machining, so they can come to their side to seek support.
Hearing Qin Guan's words, Mr. Zhang on the side couldn't help nodding his head, thank you so much!
For the 114 Institute, it is necessary to overcome the difficulty of flat-slit radar antennas and requires sophisticated processing technology. However, if the 114 Institute comes to introduce the corresponding processing tools, it will cause great waste, because they are producing radar equipment. , It mainly produces electronic products and requires very little precision processing. If one is directly introduced, the annual output will be so many dozens of radars, which is too wasteful.
If you find a special place for processing, of course it is the best.
At the same time, there are no people who can operate five-axis CNC machine tools in China. Even Sandra can only master it after studying and pondering. Getting married is more beneficial to the country. When will it be used? Bala comes to tie her down and she can serve the country.
Heribala didn't lose, and if he married a foreign daughter-in-law, look at her figure, her tits, tut, Heribala must be very happy to say.
At present, the domestic CNC machine tool industry has not yet developed. There is no way to do it. It has to go through a process to do it. There are very few people who operate the machine tool. Otherwise, I will not be in Sandra. Thought about it.
However, this should be regarded as a win-win cooperation. In Steyr, where is the northern heavy truck company, it can give full play to her talents.
Through this processing center, the domestic high-precision processing capacity is greatly improved, which is of great help to the development of the country.
For example, in the production process of the Spey engine, some precision parts can actually be handed over to the company for processing, improving the process and increasing efficiency.
For another example, our own heavy trucks should now be slightly improved. One of the most important aspects is the use of superchargers.
"After your wedding is over, our factory will have a new project." Qin Guan continued: "The engine of the northern heavy truck we are currently using is also a naturally aspirated engine. We need to further improve it. Tap its potential to become a supercharged engine."
In later generations, when it comes to turbocharged engines, there will be a group of old drivers who are disgusted, saying that the power is not linear, saying that the life is low, and so on. They feel how knowledgeable they are, and they don’t even know. In the field of trucks, turbochargers have long been used.
Now, Han Guo’s own heavy-duty truck project is many years ahead of history. Therefore, the heavy-duty truck is now equipped with only the imitation Steyr 991 series WD615.00 engine, which is the basic model of the WD615 series. It adopts a naturally aspirated design; the power is 200 horsepower, and it can output 623N.m of torque at 1400 rpm.
At the same time, the power of the engine can also be changed by changing the injection system, but the changes are limited. Even so, this engine is also the most advanced engine in China.
When there is no five-axis linkage CNC machine tool, it is impossible to machine suitable turbocharged blades, so the supercharger was not considered at that time.
The principle of the so-called supercharger is actually very simple. It is two linked fans. One of the fans is driven by the exhaust gas. Anyway, the exhaust gas is useless. It is used to blow the turbine blades. , This blade is blown, it will drive another coaxially rotating blade, this blade is used to blow the engine, so that under the same displacement, the inside of the engine cylinder can more air , You can inject more fuel and have more power. It's that simple.
As for its lifespan, in later generations, it is almost the same life as the engine, so there is no need to worry about it. The use of new technologies will always be resisted by some conservative people and talk about them with their own experience. However, the promotion of new technologies will not be affected by these people. Look at future generations. Although they are resisted, However, turbocharged engines have become more and more mainstream. As for heavy trucks, they are all turbocharged.
In Steyr's engine, this improvement is also continuing. Among them, WD615.61 is modified by adding an obsolete turbocharger to WD615.00 and increasing its fuel injection volume.
This engine, after a simple modification, has increased its power from 200 horsepower to 260 horsepower, and can output 829N.m of torque at 1600 rpm. It can be seen from the above characteristic curve that all parameters of WD615.61 are better than WD615.00 after minor changes, which shows the prospects for the improvement of WD615 series engines.
Therefore, it is already a trend to add superchargers to the engine. Of course, now Lien Steyr is also trying in this regard, and has not completed the model development. Now if the domestic transformation is done, it has already stood in the same Starting line.
However, this turbocharger cannot be produced in China.
There are many manufacturers of turbochargers, such as Hans State’s KKKK28, Niu State Holset H2C, Eagle State Garrett TA45, at that time, domestic imitations were also carried out, such as Dongning GJ80, Hongyuan’s K28 imitating KKK, and Wuxi Power J90 and other superchargers.
However, the performance of these turbochargers is not good. In the end, Holset's turbocharger flow range, maximum speed, and compression ratio are better than other manufacturers and are widely used.
In later generations, some manufacturers made their own engines and advertised that we used some world-famous superchargers. In fact, there are almost no domestically-produced things, all of which are imported.
It is impossible to produce advanced turbochargers. On the one hand, because of the special shape of the internal turbine blades, they cannot be processed in China. Can't bear it, all these require advanced processing equipment.
But now, we already have it. It is a piece of cake to produce turbochargers. Now we are entering research and development. Maybe in the future, our turbochargers can also be sold all over the world!
Only by relying on the strength of industry can a country be truly powerful. It can produce advanced products that sell well all over the world. It is an act of exhaustion to raise the so-called chicken fart by relying solely on real estate.
Qin Guan thought of future generations inexplicably.
Now, after hearing Qin Guan’s proposal to transform into a turbocharger, Sandra immediately agreed:
Yes, this is the trend of the heavy truck industry in Europe. Can be produced!"