Chapter 142 Walking Tractor

[I wonder if you have ever seen a hand tractor? When we were young, tractors were still valuable items. They were not only used to pull goods, but also as a means of transportation. At the same time, if its wheels were replaced with special wheels, it could also be used for farming.]

[This type of tractor requires you to keep shaking the crank before starting it each time. The crank is like the key that starts the tractor.]

[It is similar to the principle of a gasoline engine. The tractor also relies on the reciprocating motion of the piston to ignite the combustible mixture in the cylinder. The energy released by the combustion of the fuel pushes it forward and backward.]

[It's just that its engine has only one cylinder. Adding more cylinders will make it more powerful. And it burns diesel, which is light petroleum, heated to 180℃~370℃. Compared with gasoline, it has a lower ignition point and higher energy density.]

[Insert the crank handle and connect it to the starter shaft. Turn the crank handle to drive the starter shaft. After turning, the power is transmitted to the crankshaft with the help of the meshing gears. As the crankshaft rotates, the connecting rod drives the piston, and it moves up and down like this.]

[Let's first understand the basic structure of the engine. As we all know, the ones with golden springs on top are two valves, one is the intake valve and the other is the exhaust valve. There is a spark plug in the middle of the two valves (gasoline engines have it, but diesel engines don't). Below is a whole cylinder, and inside the cylinder is a piston.]

[The cylinder is surrounded by coolant, which is very important to prevent the engine from overheating. The function of the crankshaft is to convert the linear motion of the piston into rotational motion; the connecting rod connects the piston and the crankshaft. ]

[According to the order of intake, compression, work, and exhaust, we call this cycle the four-stroke cycle]

[The first step is the intake valve opens, the piston moves downward, and the oil-gas mixture is drawn in. This is the intake process; the next step is the intake valve closes, the piston rises, and the oil-gas mixture is compressed at high temperature. This is the compression stroke]

In front of Fengtian Hall.

"Tractor? What is this? Does it run on oil?" The clerks did not stop working, but when they came across something they did not understand or had never heard of, they would mutter a sentence or two to themselves.

“I haven’t heard of it. Diesel is light petroleum. Is there heavy petroleum? This problem is difficult to control.” The clerk next to him took over and said, in fact, the main problem is that it is impossible to measure accurately because there is no reference object, so it is impossible to make a thermometer with a temperature above 100.

These are what they come into contact with on a daily basis. Since they were in charge of transcription, they were later incorporated into the Science Department and served as assistants in various experimental research.

“Isn’t this an internal combustion engine?”

When Zhu Yuanzhang heard this, a strand of his beard was pulled out. Regardless of the pain, he thought about it carefully and realized that it might really be an internal combustion engine.

From drawing in the oil-gas mixture to compressing the gas, the temperature will rise rapidly when the air pressure increases. This has been mentioned in the principles of air conditioning. The final step is the process of discharging exhaust gas.

"It should be the internal combustion engine! Copy the structural diagram quickly!" Zhu Yuanzhang said anxiously. If you miss this opportunity, you may have to wait for several years. Usually, the videos you see on the screen are funny and useless.

"Can this be used on ships?" Liu Ji and others became excited. Although it was a question mark, looking at the sky curtain, the so-called tractor actually had three wheels, one in front and two in the back. There was a board installed on the back wheel, which was probably used for carrying cargo.

"Is its fuel tank so small?" Zhu Biao was surprised. He gestured and it was about the same size as his arms around him.

Not only him, but others also gestured and saw that the fuel tank was indeed not big.

"Based on the 5L peanut oil barrel, this is at most 40-50L?" Everyone stared with eyes wide open and gestured, estimating a rough number, but they didn't know if it was accurate.

"How far can you run?"

"It probably has something to do with whether it's carrying cargo or not. If it's empty, it should be able to run for dozens of kilometers. Otherwise, the fuel tank wouldn't be designed to be so small, right?"

Everyone was discussing enthusiastically. It was obvious that diesel consumption would be much higher when loaded with cargo. If an empty truck could not run for dozens of kilometers, then it might not be able to run for 10 kilometers when loaded with cargo. In this case, no one would want the tractor. After all, who would only pull cargo for ten kilometers?

"This efficiency is much higher than that of a steam engine!" Sun Chuanshi and others from the Science Department were almost crying. From last year to now, when the Ministry of Rites and the Honglu Temple were contacting the Nanyang Kingdom, training the navy and preparing for the landing in America, they had not been idle and had been thinking hard about the structure of the internal combustion engine.

Now, who would have thought of using a mixture of oil and gas to ignite it by compression?
"With it, it's only a matter of time before cars, ships, helicopters, trucks, and a whole range of other machines are available."

Zhu Yuanzhang was a little nervous for a moment, because the internal combustion engine was so important that he couldn't help but evaluate whether it was possible to build an internal combustion engine with today's technology.

What comes to mind at the moment is: seamless technology, high temperature resistance, and high pressure resistance.

Hexing Tea and Snack Shop.

Shopkeeper Wan's hands were shaking slightly as he copied it. This was the famous internal combustion engine. The structural diagram in his hand was worth more than a fortune.

"The structure is not complicated, but the craftsmanship requirements are definitely very high." Manager Wan knew that without a little bit of strength, he might not even be able to produce a qualified sample.

[Next, the spark plug comes on stage and ignites the compressed mixture. The burning of substances in a confined space causes an explosion, so the force generated by the explosion causes the piston to move downward, which is called the power stroke; then the exhaust valve opens, and the piston moves upward, pushing out the exhaust gas. This process is called the exhaust stroke]

[Everyone should understand after seeing this. In this cycle, the crankshaft rotates a total of two circles, one circle during the intake and compression process, and another circle during the work and exhaust process. It completes two circles before driving the car.]

[The tractor driver cranks the handle to keep the crankshaft turning to ensure the engine continues to run. During the process of the engine completing an ignition, the piston can only be actively pushed downward when the diesel burns and releases energy.]

[In the other three stages, the piston can only move by relying on the inertia of the crankshaft. In order to make this inertia large enough, a heavy flywheel is often installed at one end of the crankshaft.]

[In this way, if you want to ignite a single-cylinder diesel engine completely by manpower, you need to overcome a relatively large resistance, so generally there is a decompression mechanism on the hand-cranked engine. Before shaking, turn the handle to the decompression position.]

[Finally, let's look at a small question. Why do most tractors and trucks use diesel engines, while cars use gasoline engines? ]

[This is because the compression degree of the diesel engine cylinder is greater than that of the gasoline engine, which means it can output greater power, higher combustion efficiency and lower energy consumption than the oil engine. However, the long piston stroke of the diesel engine causes the speed to be lower than that of the gasoline engine.]

[Tractors, trucks, ships, etc. are generally used to transport goods, and there is no great demand for speed, so a powerful but not fast diesel engine is chosen. For example, a single-cylinder tractor has a speed of 8-15 kilometers per hour, a fuel tank of 50 to 200L, and can travel 400-3000 kilometers without any problem when empty.]

[Cars are mostly used to carry people, so choose a gasoline engine that is small and fast]

Tang Dynasty, Chang'an City.

"The speed can be solved by adding cylinders. Can this distance be achieved?" Li Shimin spoke incoherently. He felt like he was hit by a pancake. He felt like he had found a treasure.

If we calculate based on the bottles of cooking oil, 200L is equivalent to 40 bottles of cooking oil, which can definitely be carried by the ship.

With this diesel engine, the treasure ship designed previously only needs to remove the original steam engine part and replace it with a diesel engine, and the other power parts do not need to be modified at all. Both use mechanical gears to rotate.

"With a diesel engine, it should be possible to cross the ocean from Africa, but I don't know if I can get back."

"Africa and South America seem to be pretty close. Should that be okay?"

Even the generals started discussing, and even Cheng Yaojin couldn't help being tempted. If it was the previous steamship, he didn't want to die, but if it was replaced with a diesel engine, it seemed extremely efficient, so there was a great chance of success. He had been idle in Chang'an for the past few years, but the abominable thing was that he didn't even have a chance to participate in the Northern Expedition and the raid on the Eastern Turks!!!

Cheng Yaojin's eyes rolled around and he made up his mind: Even if I have to, I have to go out and perform meritorious service!
It just so happens that Li Jing, Li Ji and a few other old bastards have gone to the Northern Expedition, so this job finally falls on me, Old Cheng!

He even thought of a way to return. He planned to take a few more ships. If there was any diesel left after crossing the ocean, he would concentrate all the diesel on a treasure ship and then return.

Or you can find the oil-producing areas mentioned by Tianmu, bring a set of simple equipment over there, and refine it a bit and it should probably work.

In short, there are more solutions than difficulties. As long as the four major crops can be found and one person can come back alive, the soldiers who travel with them will all have made great contributions.

"My father looks like a rock singer when he's driving a hand tractor"

Let me tell you a little knowledge. Soviet tanks used diesel engines in World War II, while other countries used gasoline engines. Modern tanks, except for the heretical ones that use gas turbines, are mostly diesel engines.

"Don't mention it, that's how my front teeth were knocked out [covering face]"

"My dad has been selling diesel engines all his life, but he doesn't even dare to drive one"

In front of Fengtian Hall.

Everyone finally copied the complete structure of the diesel engine, and by adding a "spark plug" to it it became a gasoline engine.

Zhu Yuanzhang grinned so widely that crow's feet appeared at the corners of his eyes.

So he ordered the Ministry of Industry to supervise its production as soon as possible. Since the industrial difficulty of the internal combustion engine could not be estimated, no clear deadline was given, only that it should be produced as soon as possible.

"I obey your command!" The Minister of Works An Ran said solemnly. With the experience of supervising the manufacture of steam engines and electric motors, he naturally knew the importance of diesel engines.

Steam engines are too bulky, and before there is a breakthrough in batteries, motors will be restricted by wires for a long time and cannot be used in many scenarios.

Now that we have diesel engines, trucks, ships, agricultural mechanization, etc. are all just around the corner.

Especially diesel ships. With this, Ming Dynasty will leap from a land country to a maritime country. Relying on its leading artillery capabilities, it can be said to be a complete overlord of the blue planet.

As long as Your Majesty, the new emperor, does not commit suicide, he will inevitably maintain his position as the overlord for a hundred years.

The monarchs and ministers who are fortunate enough to achieve this prosperous era will be famous throughout the ages, like Zhuge Liang and Fang Du.

Hu Weiyong, Liu Ji and others also knew the importance of this matter. They were all excited and proud of it.

[Why is Liu Chan's reputation on the Internet getting better and better? Shouldn't you, Brother Chan, be praised?
[May I ask which emperor, in his childhood, could lead only one cavalryman and fight his way in and out of a huge army without getting hurt at all? Oh, it seems there are some traces of injuries from falling.]

[Not only that, Liu Chan was born in a humble family. His father sold straw sandals and his mother-in-law chopped wood. In the end, Liu Chan relied on his own efforts to become the emperor. Isn't this inspiring?]

【After he ascended the throne, he selected talented people and appointed the most highly regarded prime minister in ancient history, trusting and entrusting him with his talents without reservation. Which emperor has such a broad mind and vision?】

[After Zhuge Liang's death, Liu Chan relied on his own ability to fulfill Liu Bei's last wish to return to the old capital and witnessed the demise of the Cao Wei regime that usurped the Han Dynasty. Liu Chan also did a great job in educating his descendants. You can see that Liu Bei's son is obviously not as good as Liu Chan's son.]

[Although Liu Chan was not an effective monarch, and could even be said to be an ineffective monarch, he was at least not comparable to scumbags like Hu Hai and the second generation of the Ming Dynasty's God of War. It is no exaggeration to say that many famous ministers and generals hoped to meet a monarch like Liu Chan.]

[If Wanyan Gou and his ilk were replaced by Liu Chan, there would be no Yue Fei's death, the migration of the nobles to the south, and the fall of the Central Plains]

[From Qin Shi Huang to the present, there have been 494 emperors, all kinds of weirdos, especially during the Five Dynasties and Sixteen Kingdoms and the Northern and Southern Dynasties, when humans were in a state of panic, the bottom line of the various kings who lost their country was unfathomable]

Compared to them, our Zen brother did not do any worse. He only killed two people in his life. One was for slandering him for raping the minister's wife, and the other was for slandering Zhuge Liang. It can be seen that he listened to Liu Bei's words before his death, "Do not do evil for the sake of small gains, and do not refrain from doing good for the sake of small gains."]

Late Han Dynasty, Nanjun.

Liu Bei and others had just finished copying the structure of the diesel engine and were preparing to replicate it when the sky curtain changed again.

I wanted to drink some tea to moisten my throat, but I was choked by the sky curtain and spat it out.

"You were able to fight your way in and out of a huge army with only one cavalryman when you were young? Are you referring to when Zilong saved the young master at Changban Slope?" Not to mention Liu Bei, even Zhuge Liang, Guan Yu, Zhang Fei, Ma Liang, Wei Yan and others were stunned, looking at Zhao Yun and then at the sky.
Zhao Yun's face turned red with anxiety and Tianmu interrupted him. He didn't know what to say at the moment.

"My father sells grass, and my mother-in-law cuts wood? Why does it sound familiar?" Even Zhang Fei was choked and wanted to laugh but held it back. For a moment, everyone blushed.
"The art of language, right?" Liu Bei laughed out loud. He was not so petty that he would not get embarrassed about this matter. However, Tianmu had mentioned it before, saying that Zener's stupidity was related to his failed education.

Therefore, when the two military advisors, Kong Ming and Shi Yuan, are free, they can leave Zen'er to them for discipline. Even if he fails in the future, it will not be worse than in history.

"But now that Jing Tianmu said this, it seems that Chan'er is not bad either." Liu Bei thought to himself that all parents hope for the best for their children. Now, to put it in a different narrative way, my son is really not bad.

"This is a talented person who should be invited to compile history." Zhuge Liang also joked.
“Do not do evil for the sake of small gains, and do not refrain from doing good for the sake of small gains!” Guan Yu also recited this. It was indeed the style of the eldest brother, and he was kind to others all his life.

Liu Bei read these two sentences and put away his smile. He knew that these were his last words in history, and he felt a little sad. He was an angry old lion, who wanted to avenge his brother with great power, but was stubborn and did not listen to the advice of loyal ministers. He made many stupid moves and finally caused a fire, destroying his family business of decades.

He saw unwillingness and humiliation in the old face lying on the sickbed. He was so humiliated that he didn't even dare to return to the capital and could only die in Baidi City with hatred.

"What a niche text, Liu Bei's son is not as good as Liu Chan's son [covering face] I thought about it for a while before I realized it"

"Liu Chan's son died for his country, while Liu Bei's son was happy and didn't miss Shu"

"You have to know that Liu Chan reigned for 40 years and 154 days, ranking 494th among the 13 emperors in Chinese history!"

"Liu Chan is actually OK. After Zhuge Liang's death, there is actually not much hope for the Northern Expedition. History is not a novel. There is no such thing as Li Er's soul traveling through time and space to become Adou!"

Tang Dynasty, Chang'an City.

Li Shimin couldn't help but hum when he saw Tianmu mention him, and he felt relieved. He had heard it by chance from Tianmu, that was a novel in which his soul was in Adou's body. Although it didn't show one tenth of his ability, it sounded pretty good.

The Battle of Yiling defeated Lu Xun, and Nanzhong destroyed the Three Kingdoms in one day.
It would be better if these guys could keep their mouths shut. Using "Li Er Li Er" is so degrading. Wouldn't it be better to use something like "dragon and phoenix figures" or "the appearance of the sun and the moon"?

(End of this chapter)

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