The weather in March is still cold, although according to common sense it should not be the case, usually it is already warm after the New Year, but no one expected that there will be a sudden spring cold after the New Year.

This cold has caused many people to suffer from colds, and there seems to be no flu yet, but people have taken the simplest and most effective way to prevent it: wear masks! Looking at the pedestrians on the street wearing masks of various colors like spies, Zhang Lan also felt quite interesting.

Zhang Lanke never thought that there could be so many colors and styles of masks before, the men are very simple, usually just a white mask; Women, especially beauty-loving girls, dress up with masks that cover their beautiful faces, as if the masks can replace their own faces.

At the time of this cold spring, there was good news in the company, to be precise, the old Maozi engineers of Alice Motorcycle Design Company came with good news, the engine imitated from the Ural M72 has been successfully imitated, and in the process of imitation, although the main cylinder and other parts are still made of cast iron, but the cylinder head is made of aluminum alloy, in addition, a large number of aluminum alloy materials are used in the entire engine, which greatly reduces the weight of the whole engine.

In fact, it is not suitable to say that this engine is imitated, and the application of a large number of new technologies and new components has not only reduced the weight of this engine, but also reduced the volume accordingly, in addition, the output of the whole engine has increased by five thousand watts! You know, the maximum output of the original engine is only 24 kilowatts even after using the round head cylinder, and the output of the engine with the square head cylinder is lower, the maximum output is only 21 watts!

In particular, the revolutionary use of water-cooled cooling method on this engine has made a comprehensive breakthrough in the performance of the engine. The benefits of water cooling are obvious, compared to the previous air-cooled mode, the water-cooled engine can provide higher rpm and lower engine operating temperature, which can effectively avoid the occurrence of engine overheating. Correspondingly, the engine can output higher power!

In response to the ugly and rough workmanship of the Soviet engine, the Chinese engineers of the design company borrowed the appearance treatment and processing technology of the Biaqi engine for this engine, and after the new process reprocessed the engine, the ugly appearance of the engine seemed to be pulled directly from the pile of cast iron. Compared with the original engine, as if one was an ugly duckling and the other was a noble white swan, even those old hairy people were dumbfounded, and even incredible!

Zhang Lanmei carefully looked up and down, left and right, and the shiny engine was no longer the black and non-slippery appearance of the engine on the nephew, flying everywhere on the surface. The re-optimized engine surface is clean and tidy, with sharp edges and corners, and the surface is covered with the unique matte white of polished aluminum alloy, and the whole engine is placed there, giving Zhang Lan the feeling of being a strong and powerful heart, ready to enter a certain body at any time and output his most powerful strength.

Just by selling it, the price of this engine can buy a lot more money than that nephew's engine, right?

This engine is certainly much heavier than the one used in the Alice Ducati (Diana MARK5), just look at the volume, but the power output is not comparable to that engine. I don't know how about putting this engine on the nephew? Zhang Lan suddenly had such an idea in her heart.

Although the engine on the Alice-Ducati (Diana MARK5) car is also very good, but the cost of that engine is too high, there is no way to use the engine on the Alice-Ducati (Diana MARK5) car, only the output power of the engine in the whole company can meet the requirements of the use of military-designed all-terrain vehicles, and now with this improved 750CC engine, although the fuel consumption is a little larger, but it can't stand this guy cheap! Using the engine on Alice-Ducati (Diana MARK5), the cost of the whole vehicle alone reaches 30,000 yuan, and if this engine is used, the cost of the whole vehicle can be reduced by at least 10,000 yuan!

"Can you help me do the math. If this engine were to crash into our all-terrain vehicle, would it still be able to maneuver compared to the original engine? "Do it when you think of it," said Shiryakov, who was standing on the side. And how much will the cost drop if this engine is used? How does the car need to be adjusted? In terms of practical operation, how feasible is it? ”

Zhang Lan is really not very clear about the cost of this engine.

"Okay," Siriyakov nodded, "you wait a minute. It'll be fine in a while. ”

Zhang Lan nodded, quietly waiting for the results of Shiryakov's calculations.

"Okay," Shiryakov sighed after scratching the paper for a while, "if this engine is adopted, the feasibility is still quite large, the body of the all-terrain vehicle itself is very strong, but the fixation between the body and the engine must be strengthened, this engine weighs twice as much as the original engine; The corresponding support structure also needs to be adjusted, and the materials used also need to be strengthened, because the volume of this engine can be much larger than the original engine, but these are not major problems, and it can be done quickly with a little adjustment. ”

"As for the cost, because this thing is very complicated, not only to consider the purchase price, but more importantly, to take into account the future production scale, the larger the production scale, the lower the cost, so it is not possible to calculate the detailed data now, but compared with the previous engine, the overall cost of the car with the new engine is not too big a problem to drop by about 8,000." Hiryakov paused, "The maneuverability is basically the same as the original, but because of the weight of the body, it still decreases slightly, but the impact is not big, it just drops by less than 8%, and it is basically not felt in normal use." ”

"Then change," Zhang Zongjun, who was also very concerned about this issue, finally spoke after receiving an accurate answer from Shiriyakov, "What is the reason why the cost can be reduced so much without affecting the mobility of the vehicle?" ”

Fuck, I'll make a phone call when I go back in a while and tell Brigade Commander Wang about the situation, and ask him, do you want the original model or the improved model? Although the engine is newly improved, but the prototype of the engine has indeed undergone decades of wind and rain The engine used on the Ural M72, although the appearance is not good-looking, but it is reliable and durable, Zhang Zongjun believes that compared with the previous engine, Brigade Commander Wang will definitely be more willing to purchase this kind of engine that has been improved after the test of time, not to mention the sudden reduction of so many procurement costs under the condition of very limited procurement funds.

"By the way," Hiryakov suddenly remembered something, "another task assigned by the two bosses is now almost 90% complete, and it will be completed soon!" ”

"Are you talking about the development of a 400CC four-cylinder motorcycle engine based on this 750 engine?" Zhang Lan and her father glanced at each other and asked in surprise.

"This is this," Shiryakov's eyes were full of pride that could not be concealed, "After more than half a year of our efforts, we are finally close to success, but it is slightly different from what we expected, not a displacement of 400CC, but 500CC, and a single-cylinder displacement of 125CC, which is also the same as this engine, which uses water-cooled technology." Although it is still technically behind the current 400cc engine technology in Japan, it is not far behind, after all, our prototype car has been producing engines for almost 60 years! ”

“500CC？” Zhang Lan was stunned for a moment, there are more than 100CC, but that's okay, at that time, they were just asked to work towards 400CC, and now this step can be regarded as a perfect completion of the task, and this engine can be slowly improved in the future, isn't it? "What is the maximum output power?"

"Twenty-four kilowatts! While reducing the displacement by about a third, we were able to maintain the same power output by all means, which is only 5,000 watts less than the improved 750cc engine! And this engine is much lighter and smaller than this improved 750CC engine! "Shiryakov was proud," this engine power factor, even in our USSR was never realized, and now we have done it!" If this engine is installed on an all-terrain vehicle, it is really called perfect! ”

He shook his head regretfully, "It's a pity that it hasn't completely succeeded yet." ”

Zhang Lan sweated wildly! No one in the entire Soviet Union was able to do this, and your Soviet Union's disregard for the motorcycle industry was straightforward enough! However, Zhang Lan held his chin and calculated in his heart, so that this engine can be used as a medium-displacement motorcycle

What are the requirements for the use of the engine of the trailer? It seems that there are no motorcycles of this grade in China, right? Basically, all the cars in China with this displacement level are parallel goods smuggled from Japan! (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!) )