Hearing Philip's words, Qin Zhenhua smiled and said to him: "Yes, for the common blue sky of mankind, we attach great importance to environmental protection requirements. In order to achieve higher emission standards, we are already in the civil service.
High-pressure common rail technology is introduced into the diesel engine, so that the European No. 3 emission standards should be achieved and the ability to meet the European No. 4 standard."
With the continuous development of internal combustion engines, the international requirements for emission standards are becoming increasingly strict. In the 1990s, Europe began to formulate emission standards. Until now, Europe has implemented the No. 3 emission standards, but soon,
It will be upgraded to the No. 4 standard.
The improvement of standards brings about the development of engine technology. Take automotive diesel engines as an example. The first European standard, as long as an ordinary turbocharged engine, can achieve this kind of emissions, but in Europe 2
The standard must be advanced supercharged intercooling to meet the needs. When it comes to Europe 3, high-pressure common rail technology is required. If it is to achieve the European 4 standard, it will be even more difficult. At present, it is Europe.
The car companies are also conducting research. Part of them is to carry out the EGR route, which is to send the discharged exhaust gas to the engine and burn it again, so that the exhaust gas will be purer. On the other hand, the sr route is to use urea to install it.
Catalytic reduction is performed at the exhaust pipe.
In short, the European Standard No. 3 is a hurdle, which requires high-pressure common rail technology. In the past, engines were mechanical pumps, and the engine directly drove a high-pressure oil pump to work. However, when the No. 3 standard, it was carried out on the high-pressure common rail.
The route must be an electronic pump, and each fuel injector is controlled by a computer, so that it transitions from machinery to electronics.
So, it is very different from before.
Because the country is a little behind, so far, high-pressure common rails have not been used to achieve the No. 3 standard. It is enough to use ordinary mechanical pumps to meet the National II standard. Now, Philip heard Qin Zhenhua talk about these things.
, that couldn't believe his ears: "What, where did you get the high-voltage common rail technology?"
Europe has achieved the third standard emissions, so there is also high-pressure common rail technology. However, this technology is only in the hands of a few manufacturers, and other engine factories need to be purchased. Have the Eastern powers also begun
Purchased?
"Of course it's our own technology." Qin Zhenhua said: "In order to improve the performance of tank engines, we have begun to apply high-voltage common rail technology. Now, we are just using this technology. Our supporting electronic control technology is also all
It was transplanted from tank engine technology, so the technology should be mature."
Qin Zhenhua said, looking at the other person's face, which was very interesting.
High-pressure common rail technology is a technical difficulty that diesel engines must overcome. Diesel engines using this technology will have a higher oil pressure, so the engine performance will be stronger. The first machine factory is just to improve the performance of tank diesel engines and realize
The 1,500 horsepower required is a lot of effort to study this technology. After this technology was developed, it also brought many benefits to the first machine factory, such as the military can be carried out.
Transferred to the people.
In military technology, it is to increase power, and in civil technology, it is to make diesel atomization better and burn fully at higher oil pressure, so that the exhaust gas can meet the standards. The first machine factory used to spend a lot of money
The technology developed by the capital will not be wasted, but will develop.
"After this technology is equipped with civilian vehicles, the purpose of fuel saving can also be achieved." Qin Zhenhua said: "At that time, our new heavy truck will be equipped with a new engine with strong power and lower fuel consumption."
The fuel saving is because the torque arrives earlier. In the previous mechanical pump engines, the higher the speed, the greater the pressure of the oil pump, and the more diesel it injects into the cylinder, the stronger the engine will be. Therefore, experienced drivers will step on the accelerator.
In the end, this will obtain the maximum torque output. However, the oil pressure of the high-pressure common rail engine is constant, so it can be adjusted by computer to make it work at low speeds. The lower the engine speed, the more fuel consumption will be.
Low.
Of course, drivers have to be trained and drive according to the old methods before, which will increase fuel consumption.
"With the engine, you have to have a transmission to cooperate." Philip said. He knew that the engine had nothing to say, and then he said that the transmission was good.
The transmission of heavy trucks from the Eastern Power was also introduced with Steyr. After several years of hard work, the domestic market has mastered the production of this transmission, but it is just a nine-speed gearbox after all.
The engine at that time had only more than 200 horsepower, and using a nine-speed gearbox was enough. However, as the engine power increased, the gears were also more, so that we could better adapt to the working conditions.
"Our Mercedes-Benz heavy truck has started to use twelve-speed or even sixteen-speed gearboxes. In particular, we also have automatic shifting technology. After years of research and development, these technologies can now be removed from the clutch and completely free the left foot
"You can't call it a brand new product without a good transmission."
"Yes, you're right." Qin Zhenhua said, looking at Wang Erzhu: "Have we returned from the truck we tested?"
"I can call it back. We went to the test lot and probably will be waiting for us there." Wang Erzhu replied.
Philip couldn't understand what the two of them said, and he looked at Mia beside him, and Mia also smiled: "Let's go, let's go out and have a look."
Anyway, Philip didn't really come here to inspect, he just came here to inspect. Now, he has already obtained the results he doesn't want, and he has to bear it. It's useless here anymore, so he just goes out to take a look.
Hearing Mia's words, Philip walked out. When he arrived at the test lot, a ng80 heavy truck was already parked there.
"Mr. Philip, please come and have a look." Qin Zhenhua said.
Philip was a little strange. What's the good looking thing about this ordinary ng80 heavy truck? With doubts, Philip came to the front of the car door. When the door opened, he had not yet stepped up and saw the front and bottom of the cab. There was a lack of it.