Compared with the group led by Shiriyakov, the group led by Maxim seems to be more efficient, which is also due to the difference in the direction of the use of two different engines: the V-twin engine research group led by Shiriyakov does not put speed first, but emphasizes the smoothness of power and ride comfort, and does not emphasize speed and efficiency so much......

The large-displacement multi-cylinder engine design and development team led by Maxim is different, with more emphasis on speed! Velocity! Velocity! Except for speed or speed! Higher requirements are placed on the explosiveness, durability and working environment of the engine. Under such research conditions, it naturally seems as if this group of Maxim is more efficient!

In general, the work of the multi-cylinder large-displacement engine research group led by Maxim is somewhat more difficult than that of the V-twin engine research group led by Shiryakov. However, as the so-called advantages come with disadvantages, although the research is more difficult, the amount of work is correspondingly reduced. Compared to the huge engine series of six series that the group led by Hyarkov needs to study, the research fever of the engine research group led by Maxim is much smaller.

The company assigned Maxim the task of developing: 250 cc, 400 to 500 ml, 600 to 800 ml, 1000 to 1200 ml of racing engines. Unlike the high-powered engines used in the Prince Cruiser, the engines used in racing cars, or motorcycles, have never exceeded 1,200 cc so far. Even the Suzuki Hayabusa supercar, which was known for its speed and displacement, had a staggering 1,300 cc of displacement, and it was only in February 1999 that it was unveiled.

Unlike a cruising car, which pursues the purpose of enjoyment and comfort, everything is designed for speed, which is the ultimate goal. In order to reduce the weight of the whole vehicle, not only the engine should be reduced, but even the weight of any part of the car such as the frame and the body should be considered, and everything that hinders the car from running faster must be proposed by the designer.

Because of this, the total weight of a large motorbike is usually only about half that of a heavy cruiser. All of this has only one purpose. It's just to make the car run faster!

In order to reduce the weight of the engine as much as possible while ensuring that the car has a fast enough speed, this puts forward more stringent requirements for the engine designer: the engine designer should reduce the weight of the engine as much as possible while increasing the engine power!

But if you want to provide enough power to the car, you need to have enough horsepower. Want to increase the power of your motorcycle. The simplest and most direct way is to increase the displacement of the motorcycle engine, at this time the problem arises, increasing the displacement volume, it will definitely increase the weight of the engine, and things have returned to the original point. This is also contrary to the original design idea, what should I do? How can you increase the power output of the engine without increasing the weight of the engine?

To achieve this, someone finally came up with a solution: increase the speed of the engine!

In the case that the engine displacement and weight will remain the same, the engine power will be increased by increasing the maximum engine speed! The higher the engine speed per unit time, the higher the power output! So we can see that the engine of the F1 car has a maximum output of more than 900 hp despite being only 2.4 litres, even if its engine can reach a maximum speed of 19,000 rpm!

Compared to the engines of F1 cars. The maximum speed of the engine of the super motorcycle sports car is not inferior, even in the civilian production model, the maximum speed of the motorcycle engine reaches 19000 rpm is not uncommon, the ordinary motorcycle with medium displacement or more, the maximum speed of the engine is above 16000 rpm, compared to the car engine that only has the highest safe speed of about 6000 rpm, it is really a bit of a small thing.

As a result, the engine displacement of even a superbike does not exceed 1,200 cc, but no more than 7,000 rpm compared to a cruising engine. The output of a superbike with a top speed of 19,000 rpm is astonishing. The maximum output of the 1600 cc engine of the Santana sedan is 64 kilowatts, which totals 85 horsepower. And motorcycles with engine displacement of more than 750 cc, many can exceed 100 horsepower!

Because of this, the power-to-weight ratio of motorsports cars is quite amazing. Any motorbike with an engine displacement of more than 1,000 cc can accelerate from zero to 100 km/h in less than 3 seconds, or about 2.5 seconds to be exact. But what about sports cars? Even supercars such as Ferrari and Lamborghini, which are widely regarded as the fastest in the world, have so far not been able to achieve this acceleration – a supercar ten years later will accelerate from zero to 100 km/h in just over three seconds.

Of course, such a high speed puts the process and materials of the manufacturing parts of the engine to the test, because the engine wants to achieve such a high speed. The most important components of an engine: connecting rods, crankshafts, pistons, cylinders, etc., all pose a huge test, requiring them to have ultra-high strength and high temperature resistance, and naturally, the requirements for the gear system inside will not be low.

Maybe you don't have any difficulty designing such an engine on paper, but the real difficulty is where you go to find the right alloy materials for making these parts, the material problem is the most troublesome, without the right materials, everything else is nonsense, and it is difficult for a clever woman to cook without rice.

Of course, for such an engine, the cooling system is equally important, which is the official reason why any motorbike will be built on the active water-cooled engine instead of other cooling engines, only water-cooled can keep the temperature of the engine from being so high that the engine itself will burn it off.

If it weren't for the fact that the company has purchased new material technology from the Institute of Metal Materials of the Chinese Academy of Sciences and some new application materials developed by itself over the years, some of which can meet Maxim's needs, I'm afraid Maxim would have stopped doing it: can such a difficult engine be designed by people?

"How's it going?" Standing behind Maxim and looking at it for a long time, Zhang Lan finally couldn't help but ask the old man softly.

"What do you do with your long eyes, can't you see for yourself?" Maxim replied impatiently, but did not stop his work for a moment.

"Uh......" Seeing that the old man Maxim was very faceless, Zhang Lan looked at Maxim very depressed. Hearing the chuckle behind him, he turned his head to look at Xiao Chenxi and Alice, who were smiling at the moment when they saw Zhang Lan eating deflated, touched their noses awkwardly, shrugged their shoulders, and finally made an excuse for themselves, "People who are engaged in scientific research are like this, they always ignore some things that happen around them!" ”

It was only then that Maxim finally reacted, as if it was a child's voice who was talking to him just now, and it seemed that there seemed to be only one child in the entire company who could freely enter and leave this research room, and when this child appeared, if nothing else, there would usually be two beautiful women to accompany him.

If my head is not mistaken, among the two beauties, it seems that one of them is usually the big boss of the company: the beautiful angel-like Miss Alice; As for the other one, it must be the daughter of the second boss of the company: the beautiful elf-like Miss Zhang Chenxi. Uh, as for that kid, don't ask, it must be the naughty son of the second boss: Zhang Lan!

Maxim, whose head finally reacted, hurriedly turned his head and took a closer look, who were the three little guys who were not Zhang Lan, Alice and Xiao Chenxi?

Thinking about what he had just said, Maxim suddenly panicked, although he didn't think that just because of his words, he could provoke the three bosses to treat him, but the employees were arrogant in front of the boss and didn't even pay attention to the boss, as if they couldn't say anything at any time.

"It's okay, you're busy with you," seeing Maxim's embarrassment, Xiao Chenxi smiled and relieved him, "Don't say that we delay your normal work." ”

"No, no," seeing that Zhang Lan and the three of them didn't mean to be angry, Maxim's heart was put down, remembering that Zhang Lan seemed to have asked him about the progress of the entire research work just now, in order to avoid being more embarrassed by being stunned, Maxim quickly shifted the topic to this aspect, "This, the task given to us by the company has been basically completed, and now the first few types of engines have been assembled and prototype tests have been carried out, and only the last series of engines are being produced." If there are no problems, it is estimated that all the parts will be made in two days, and all that remains is for the final engine actual test. ”

"Oh," Alice nodded, "Mr. Maxim wouldn't mind giving me a brief introduction to your work, would he?" ”

"No, no, no, of course I don't mind," Maxim hurriedly shook his head, this guy was quite proud of his achievements, and wished that someone could show it off, "According to the company's original requirements, the 250CC engine we used a side-by-side twin-cylinder water-cooled four-stroke engine, with two versions: carburetor and EFI. The two engines have been developed and have passed rigorous tests, and the actual performance of the EFI engine is about 80% of the current 250 cc engine on the Alice Ducati Diana Mark 5, but the cost has been doubled. The output of the carburetor version of the engine is about 70% of the output of the 250 cc engine on the Alice Ducati Diana Mark 5, and the cost is naturally much lower. (To be continued, if you want to know what will happen next, please log in to the www.qidian.com, more chapters, support the author, support genuine reading!) )