[Yunyi doesn't have much knowledge in this regard, if you make a mistake, please bear with me]

It had been more than a month since Yun Yi last went to the manor outside the city, and after learning that the blacksmith in the manor had built all the parts of the steam engine, Yun Yi immediately set off for the manor outside the city.

Don't think that it is difficult to make a steam engine, even in Yunyi's previous life, without any industrial base, the first steam engine was not the same as being made?

Officially, because of the advent of the steam engine, an industrial revolution was triggered.

The blacksmith recruited by Yunyi spent more than a month to build all the parts of the steam engine, which is a more logical thing, and the next step is for Yunyi to assemble the steam engine himself, and the first steam engine in this world is about to appear in Yunyi's hands.

Without bringing Guan Yuling, Yun Yi and his subordinates galloped on horseback, and it didn't take much effort to come to the manor outside the city, and the person in charge of the manor, Tian Hao, and the seven old blacksmiths had already lined up at the gate of the manor to wait for Yun Yi's arrival.

Tian Hao has more than Chinese New Year's Eve today, his appearance and figure are ordinary, and his talents are also ordinary, he has been responsible for taking care of this manor for the Yun family before, and after Yun Yi asked the manor to come over, Tian Hao is still responsible for managing the manor.

Seeing the arrival of Yun Yi and his party, the eight people at the gate of the manor all smiled and greeted Yun Yi respectfully.

Yun Yi just nodded slightly, and couldn't wait to walk into the manor, Yun Yi very much wanted the steam engine to appear from his hand as soon as possible.

The steam engine has a very important position in a series of plans planned by Yun Yi in his mind, although the firearms built by increasing Yun's force do not need a steam engine to rely on the blacksmiths to build by hand, but the manual efficiency is too slow, if there is a steam-powered machine tool, under the same number of people, the efficiency can be increased tenfold and hundredfold.

After all, Yunhua County is a small remote place, with a population of just over 100,000, if you want to build firearms on a large scale, the craftsmen you need cannot be satisfied, and you need to recruit from all over the Dali Empire, so it is easy to have problems, and people with a heart can easily put a hat of rebellion on the Yun family, after all, blacksmiths can also create ordinary weapons to equip the army.

In addition, steam trains, steamships and other means of transportation will bring unimaginable advantages to the Yun clan, and when the Yun clan's strength is almost accumulated, there is no need to be afraid of anyone.

The various parts created by the blacksmiths were carefully kept in a dry house, and Yun Yi ordered people to move all the parts out and put them in the open space outside the house, each part was in more than three parts, and all the parts occupied almost a quarter of the area of the open space after being taken out.

Yunyi will check all the parts, except that the quality of the parts is not too qualified, the specifications of the parts have met the requirements of Yunyi, at least there will be no links between the parts, the surface of the parts is relatively bright, showing a metallic luster, which is carefully polished by the blacksmiths.

The steam engine looks more complicated, consisting of cylinders, bases, pistons, crank connecting rod mechanisms, spool valve distribution mechanisms, speed regulating mechanisms and flywheels and other parts, and all kinds of parts placed on the ground can see how responsible this machinery is.

However, making a steam engine is also a very simple thing for Yunyi, as long as the blacksmiths build all the parts of the steam engine, Yunyi can assemble the complex instrument of the steam engine, and the structure of the steam engine has been deeply imprinted in Yunyi's mind.

After a simple inspection of all the parts without much problem, the assembly of the steam engine began, and Yun Yi began to move the parts of the steam engine, first the base of the steam engine, and then the cylinder was installed, the base and the cylinder were kept relatively static when the steam engine was running, and then the other parts were also installed on the base one by one, and the prototype of a steam engine soon appeared.

When setting off from Yunfu, Yun Yi specially brought something - vegetable oil, which made Shangguan Yuling feel very strange, and she didn't know why Yun Yi went out with vegetable oil.

As we all know, vegetable oil is used for stir-frying, of course, it can also be used for lighting, but Yunyi takes vegetable oil as a lubricating oil for steam engines.

After more than an hour, a steam engine about the height of Yunyi was finally assembled, and everyone present looked at this strange steel machine and did not know what it was used for.

It takes more than an hour to assemble a steam engine, after all, Yunyi is also the first time to practice, groping forward, it is understandable to be slower.

Although the first steam engine was assembled, it does not mean that Yunyi has been successful, the next is the most important moment, Yunyi wants to start the steam engine, only when the steam engine is moved correctly, it means that the first steam engine is really successful.

Three more things were transported to the steam engine, one was water, the other was firewood, and the other was black stone—coal.

In this world, Yunyi is still the first to discover the role of coal, people are still the first time to know that there is a stone that can be burned, Yunyi became this kind of stone as "coal", Yunyi's subordinates also called it so, and more importantly, the blacksmiths replaced the firewood used in their iron furnaces with coal, the same volume of coal burning flame temperature is higher, the burning time is longer than that of firewood, and the appearance of coal makes blacksmiths happy.

Yun Yi instructed his men to pour clean water into the boiler of the world's first steam engine, followed by adding firewood, and then Yunyi lit firewood with his own hands.

Seeing that Chai He had begun to burn, Yun Yi waved his hand to the people around him and said, "Everyone step back." ”

The people in the clearing obeyed Yun Yi's order to retreat until there was no way to retreat.

In a steam boiler, the water boils into steam through the combustion process, the steam is sent to the cylinder through the pipeline, the valve controls the time when the steam arrives at the cylinder, enters the slide valve chamber through the main steam valve and the throttle valve, and alternately enters the left or right side of the cylinder under the control of the slide valve to promote the piston movement.

The quality of the steam engine is somewhat unqualified, what Yunyi is most worried about is the explosion of the steam boiler, which is easy to injure the people watching around, and Yunyi himself is a martial artist, his reaction speed is faster than that of ordinary people, and he is not easy to be injured, in addition, the steam engine needs to be controlled by Yunyi himself, so Yunyi is still next to the steam engine, Yunyi's subordinates do not know this situation, otherwise how could Yunyi be left alone next to the "dangerous" steam engine.

Whining!

The firewood burned vigorously, and soon whoever in the boiler began to boil and make a sound.

When it felt about the same, Yunyi twisted the slide valve with his hand, and the next moment, the steam maneuvered!