"Your Majesty, no...... Oh no, it's a big deal, Your Majesty......"

A panicked and hurried voice suddenly came.

Liu Che, who was sighing that the paper thing was so easy to use, and at the same time thinking about who the next thing would be, was suddenly awakened.

looked at each other with a displeased face, and scolded angrily: "What's the matter? ”

"King of Shu...... The king of Shu ......"

"What's wrong with the King of Shu?" Hearing the news that it was Liu Ponu, Liu Che was suddenly stunned, his heart sank, and he stood up in astonishment and stared at the other party and asked.

"The King of Shu didn't know where he learned witchcraft, he said that he wanted to bring it in for His Majesty to see, Yulin Jun didn't dare to let him go for fear of problems, and he was about to fight......"

"Witchcraft?" Liu Che frowned, isn't that kid Liu Ponu working on a steam engine? How could he have time to study witchcraft?

Besides, he hadn't even stepped out of the palace gate, if he learned it, wouldn't it prove that someone in the palace had already known witchcraft?

"Your Majesty, the King of Shu can move by himself without being pulled by livestock and people, and the King of Shu only needs to move his hands, so that he can go wherever the car goes, what do you say is not witchcraft?"

"Huh?" Liu Che was suddenly stunned, and his frowning brows instantly relaxed.

What is it, that's it?

Others don't know what Liu Ponu is doing, but Liu Che knows.

Although he also knew nothing, Liu Ponu told him that if this thing was done, it could replace manpower and livestock to farm, and even replace the conscription in charge of army logistics.

Although Liu Che said at that time that I believed that you were a ghost, he did not discourage Liu Ponu's interest.

As a result, I didn't expect that kid to really get it out now?

"Hahaha, that kid really brought me a big surprise!" Guessing that Liu Ponu had succeeded, Liu Che was instantly overjoyed, and immediately dropped the paper with the list in his hand, and waved his big hand: "Let's go, let's take a look at this magical new thing!" ”

If you want to say that this is thoughtful, you have to be Liu Po's slave.

After the walk-behind tractor was ready, I tried it in the yard first, although it was not as good as I expected, but I could accept the status quo.

After a circle, Liu Ponu excitedly drove the tractor directly to Liu Che to show off, but he didn't expect that he couldn't even get out of the gate of his mansion.

The tall threshold has become the primary obstacle preventing Liu Ponu from going out, sawing off the threshold?

Liu Ponu is not Puyi's loser, so he asked people to find some wooden planks to customize a ramp, which is both convenient and experimental.

If this tractor can't even go up to the threshold with a carriage, then don't talk about working in the field, nine times out of ten you have to lie on your stomach.

Fortunately, the result was not bad, although it was a little difficult, but it still successfully crossed the threshold.

Liu Ponu's road can be described as a roar with lightning, and everywhere he passed, there were palace guards hiding everywhere, seeing that no one or a horse could take the carriage to act on their own, this scene really scared many people.

It's just that when he arrived in front of Liu Che's hall, he was stopped by Yulin Jun, who looked at Liu Ponu in horror one by one, and prevented the people behind him from placing the wooden ladder across the threshold in place.

"Really?" Just when Liu Ponu was extremely impatient and wanted to make a move, Liu Che suddenly ran out.

That's right, Liu Che, who pays attention to image at all times, ran out in a panic this time.

"Not really! Don't look at who is out of the horse......" Liu Ponu immediately came out excitedly.

Even though this is only a rudimentary Stirling engine, its horsepower is not even as powerful as that of a regular motorcycle.

But at any time, when anyone makes something by themselves, that sense of accomplishment is there, even if the thing you make is backward.

Otherwise, unless you've already made something more advanced than that, that sense of accomplishment will never go away.

"Can this thing really walk on its own?" Liu Che lazily ignored Liu Ponu's dese, and asked with a concerned face.

"Of course you can, father, come up, I'll take you for a ride!" Liu Ponu patted the carriage behind him.

"Good!" Liu Che nodded excitedly and was about to get into the car immediately.

"Your Majesty......"

"Your Majesty, you can't......"

"The King of Shu has been fine all the way over, so what's the harm if I sit down?" Liu Che immediately waved his hand to stop everyone's persuasion.

Seeing Liu Che get into his thief car, Liu Ponu pulled down an iron rod with a smile on his face, one end of the iron rod had a thick iron piece, and the iron piece coincided with the opening at the upper end of the engine's tail, pressed it down hard, and then picked up a long pin to lock it.

There is no way to use this thing, the time is tight and the task is heavy, and Liu Ponu has not had time to study the more convenient automatic locking device, so he can only deal with it casually first.

As for whether there will be air leakage, of course not, both sides have been carefully polished, and a layer of cowhide is padded inside, as long as it is pressed, there is basically no big problem.

Well, the main reason for this opening is to facilitate parking.

Liu Ponu hasn't had time to engage in the braking system, but whether there is a braking system or not, whether it is a Stirling engine or a steam engine, if you want to stop quickly, if you want to brake quickly, the first thing to do is not to step on the brakes, but to deflate first, the first step is to make the power system fail first, to avoid continuous power output caused by damage to the equipment, and the second step is to step on the brakes.

Especially with the Stirling engine, if the sealing is fine, even if the fire is extinguished, he can still continue to work for a short time, and will not stop until the front and rear pressure difference is the same.

Of course, now this is just an emergency, and the later ones will not be so troublesome, and a small pipe will be left directly when casting, and a ball valve can be installed in it to solve this problem.

"Let's go, why don't you leave?" Liu Che, who got into the car, watched Liu Ponu tinker for a while, but the car under his feet never moved half a step, and he couldn't help but be a little anxious, and at the same time a little worried, could this thing be broken?

"I know you're in a hurry, but please don't be ......in a hurry," Liu Ponu said unhurriedly, and then picked up a small shovel and took some coal from the bag next to him and added it, and then explained slowly: "You have to raise the pressure inside first, the principle is very simple, if you want to go, you can increase the pressure, and if you want to stop, open this opening to relieve pressure." ”

"How long will that take?" Liu Che looked at Liu Ponu with a bewildered expression, what kind of pressure boost and pressure relief, do I care about these?

"Pull the......" Liu Ponu thought about it, the fire below had been burning when he stopped the car just now, the temperature of the cylinder was no problem, and the pressure should come up soon when the lid was closed.

"Is this burning charcoal?" Seeing that he couldn't leave for a while, Liu Che began to observe this 'steam engine'.

When he saw that the thing Liu Ponu added turned out to be charcoal, Liu Che's heart instantly became cold.

The charcoal thing was not very valuable in the past, and there were not many people willing to use it, although the heating effect was very good, but it was quite ruthless to kill people.

And this thing has a nickname, called the rich killer.

This means that the poor may die three or five out of ten, but the rich will die almost nine and a half out of ten, and the rest will be half dead.

So in the past, whether it was poor or rich, everyone was reluctant to use it.

However, with the rapid development of the iron-smelting industry, the supply of coal has gradually begun to fail, and the workshops with the greatest demand now have new requirements for the location area.

Not only is it required to have iron ore, but it is also best to be not too far away from the carboniferous mine, so as to avoid the impact of smelting due to the absence of carbon.

You must know that once you stop during the smelting process due to the lack of charcoal, it is not only the material of one furnace that will be wasted, but also the entire furnace.

This thing is not even enough to smelt iron now, if this is to promote the steam engine, then it is also promoted to a Mao Tui, directly GG, right......

"This thing is not picky, charcoal, wood, if you can't burn it, you can get some hay in it to burn, but it is not recommended to burn hay......" Liu Ponu joked very funny, burning grass is only theoretical, that thing burns too fast, if you want to provide continuous power, I am afraid that you will have to pull a cart of grass behind, and you have to keep filling it in, and do a fart job.

Hearing that as long as it was something that could be burned, Liu Che finally breathed a sigh of relief, and just wanted to continue to ask a question, but was interrupted by Liu Ponu.

"In the back, push hard......" Liu Ponu, who felt that he was almost the same, began to beckon the people behind him to help.

This is also the characteristic of the Stirling engine, if there is no external force to assist the left, even if the pressure difference is enough, he will not start, which is far from the steam engine.

However, it is not unacceptable, it does not need to be fast, as long as the car can move, the pressure difference behind will push the car to go on its own.

Wang Wu and others, who had long been familiar with the process, immediately pulled out four people and started to push the cart after receiving the order, and the curious Liu Che also made a special observation, and found that although there were enough people pushing the cart, they didn't seem to be too hard, just pushed the cart forward a few steps and let go.

"Moved ......"

"He moved again......"

"Witch ...... Witchcraft ......"

Seeing that the car could still move forward after leaving the manpower, the people around him instantly let out a burst of exclamation, and their eyes were wide open, and they shouted everything.

The speed of the car at the beginning is not fast, with continuous heating, the pressure difference in the cylinder body is getting bigger and bigger, the speed will be faster and faster, and after reaching a critical value, it will tend to be stable.

Liu Ponu's journey was not too far, and this was also the first experiment, so he didn't know how fast this car could run.

So, the idea of racing with Liu Che in Weiyang Palace suddenly appeared in Liu Ponu's heart.

"Sit down, old man, let's race around and see how fast we can run......"

Liu Ponu's words made Liu Che instantly hold on to everything that could be supported around him, don't look at this thing is not fast now, but the first time I saw it, Liu Che didn't have a bottom in his heart, although he was more excited, but it was impossible to say that he was not afraid at all.

However, after some time......

Liu Che, who was originally a little nervous by Liu Ponu, had already put down his hands holding the carriage, and looked at Liu Ponu in front of him with an unhappy face and said, "This is what you said about a circle?" No one ran fast yet, and I almost scared me to death......"

Liu Ponu, who wanted to drag rac, was also a little embarrassed at this time, if it could be explained by the pressure difference not being big enough at the beginning, then this reason would not stand now.

They had been running for about ten minutes, and they had never been able to get up, and it felt like they were less than twenty yards or so.

And Wang Wu and they are all elites who have been trained for a long time, and the time of ten minutes is far from reaching the critical value of their physical strength, so it seems that the people running outside are not very difficult at this time, and the speed is not particularly fast, which also creates the illusion that no one is running fast in this car.

The embarrassed Liu Ponu didn't want to admit that what he had made was not good, although the speed did not meet expectations.

But I built a walk-behind tractor, which was used to work in the fields, so why do you want to do it so fast?

The speed is too fast, can the person who manipulates him keep up with a pair of feet?

I can't keep up at all......

Thinking about it like this, Liu Ponu instantly found an excuse for himself to quibble.

"You know what? Do men want to be fast? It's long-lasting, you know? I'll put the words here today, if you have the ability, let's have a good comparison, see who can't hold on and stop first, if I lose, then I'll perform a handstand on the spot and eat Xiang......"