Datang: Li Shimin begged me to rebel

When he saw the blower box, Lu Daqiang had a flash of inspiration in his mind. The blower box also transports wind, and its interior is a piston structure.

Then Lu Daqiang thought, since the steam is so powerful, if the spout of the teapot is made into a cylinder, and then a piston is made in it like a blower, and the wooden rod or iron rod of the piston is connected With one crankshaft, it can drive many machines.

Lu Daqiang is no stranger to crankshafts and connecting rods, because they all have manual machine tools, and there are many places where crankshafts are used in machine tools. In fact, these connecting parts can be traced back to the Qin and Han Dynasties, including gear conversion To change the direction of force, as a master master, Lu Daqiang is no stranger to it.

It is also very simple to change the direction of the force with a back and forth motion.

Then Lu Daqiang thought of the blower box, a double-inlet blower box. This kind of blower box was invented during the reign of Wude to improve the efficiency of iron smelting. Whether it is pushed in or pulled out, it will send air into the furnace. It has greatly improved the blast efficiency, which is also one of the important tools for Datang's iron smelting technology to further improve.

A double-inlet blower box invented in the Tang Dynasty.

As a top-notch master carpenter, Lu Daqiang will naturally make a double-inlet blower box, as long as the blower piston in the middle of the blower box is replaced with a metal one, and the air inlets on the left and right sides are changed to air outlets. The air outlet is changed to the steam inlet, so that as the steam is pushed, the piston in the middle will reciprocate back and forth.

Then the left and right steam will enter the steam in turn, and the steam will rush out from the two air outlets back and forth in turn to push the other two connecting rods to perform reciprocating motion.

After figuring it out, Lu Daqiang immediately began to cast such a structure, in which the seal of the piston structure in the middle, Lu Daqiang used the metal sealing ring invented by His Highness before, this thing is very easy to use.

It's just that the difficulty of casting far exceeds Lu Daqiang's imagination, and it may also be because of their unskilled technology. There are many problems in the sealing of the cylinder body alone, and a test in the early stage is caused by the casting of the cylinder body. Not enough, causing the cylinder block to get stuck, and then the front connecting pipe burst directly.

If it wasn't for the fact that no one was around at that time, and the seal was upward, the people hit by it would probably be gone. The broken seal directly smashed a big hole in the concrete wall of the experimental site.

And the power of the steam at that time made their people come up with a new idea, that is, if a long pipe is made, an iron ball is stuffed in it, and then heated with steam later, the iron ball is better than the steel pipe. Slightly larger than the power of the steam can push it out.

Wouldn't it be very powerful if launched?They also tested this test, but the result left them speechless, because the steel pipe was blown up.

The high-pressure steam was not enough to push the iron ball out of the steel pipe, but the valve responsible for sealing behind it couldn't bear the force of the steam and exploded directly.

Later, they thought of another way to make the iron ball the same volume as the steel pipe, but put a wooden cylinder with a thin front end and a thick rear end behind the iron ball to plug the steel pipe. The wooden pile cylinder is fixed by a thin iron sheet.

Because the back end of the wooden pile is thicker than the steel pipe, when there is a huge pressure, the wooden pile will be directly squeezed and deformed, and they also smeared lubricating oil on the inner wall of the steel pipe for lubrication.

The final result... Well, how should I put it, it is quite powerful, because the iron ball blasted out by the huge steam pressure flew hundreds of meters, but the whole process was too long.

Later, Lu Daqiang and the others did not make this thing, but handed it over to Lu Daqiang's apprentices, and Lu Daqiang himself continued to study this machine.

Now the whole machine finally works!

"Release the pressure, pull a transmission shaft over, let's see if we can switch it to a manual drill." Lu Daqiang said loudly.

The person in charge of blowing the wind here immediately stopped what he was doing, and some craftsmen also risked their way into the room and pulled a device. With a loud "buzz", a gust of white steam In an instant, it sprayed out from the hole reserved in the concrete room.

After the speed of the steam injection slowed down, Lu Daqiang and the others entered the room one after another, and soon someone pulled over a manual machine tool that had been prepared.

This was originally a machine tool for drilling holes, which they imitated later, but now it has been modified, and a special thick gear transmission shaft is linked to it.

After closing the intake valve, the flywheel here stopped, and Lu Daqiang and the others quickly connected it. After the drive shafts were connected together, Lu Daqiang immediately ordered someone to reopen the intake valve and start heating.

When the flywheel started to rotate again, the drill bit next to it began to rotate at a terrifying speed. Lu Daqiang and others immediately took a thick piece of wood and started to approach the drill bit.

Along with the flying sawdust, the drill directly drilled through the thick wood at an unprecedented terrifying speed.

In an instant, the whole room burst into warm applause!

"Successful! Really successful! This thing is so useful!" Everyone screamed emotionally, and even some craftsmen couldn't help but hug each other directly, because this thing is no longer theirs. Relying on His Highness's drawings to manufacture, but they made it themselves!

Although they also cannot do without His Highness's guidance, compared to the past when they could only follow the instructions, now they can develop something useful to His Highness. Of course they are excited.

His Highness is very kind to these craftsmen. If they can't develop something useful, they feel that they are really ashamed of His Highness.

"Should we report to His Highness?" a craftsman couldn't help asking.

"Report, of course you have to report, to announce the good news to His Highness! Since this thing relies on the power of steam, otherwise it should be called a steam engine." Liu Chang said.

"Okay, let's call it a steam engine. Learn from Your Highness. The names of these things should be simple and straightforward, so that ordinary people can understand them." Lu Daqiang also said excitedly.

After deciding to announce the good news, Lu Daqiang naturally asked Tian Meng to be notified. They even forgot that it was almost dusk at this time.

When the guards in the industrial area received the order and hurried to Chang'an City, the gates of Chang'an City were already closed.Fortunately, this is a matter of the industrial area. The guards knew the importance, so they took out their tokens and asked the guards to open the city gate.

Then he himself rode straight into the city.