After solving the sealing problem, the subsequent improvement of the steam engine was easy, and Li Zhi successfully made the condenser. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

After the condenser was made, the force on the push rod was obviously much greater. Wasted heat is saved and the results are immediate.

Next is the cylinder with a two-way air intake, and the cylinders on both sides of the piston have air intake holes. When the left side of the piston is injected with hot vapor to do work, the other side of the piston closes the air inlet hole and connects to the condenser, thus generating a negative pressure suction piston. The gas on both sides of the piston pushes and sucks the piston in one direction to increase the output power.

Inspired by oil-soaked linen, Li Zhi used oil-soaked hemp rope to seal the connection between the pusher and the cylinder, and found that the effect was good. The hemp rope is very tight after being soaked in oil, and it is quite elastic, because the friction of the grease is small. After tying six layers of hemp rope to the pusher, the water vapor cannot be squeezed out.

Li Zhi came up with the wonderful use of hemp rope soaked in oil under the reminder of the craftsman. However, in the later generations before Li Zhi's crossing, in fact, until the nineteenth century, there were still many steam engines in Britain that were sealed with oil-soaked hemp rope. The museum in the United Kingdom still has the physical object preserved in posterity.

Lee Sik made a baffle on the two air intakes. Each time the baffle is sliding, the two air intakes are opened and closed alternately, alternately connecting with the boiler. This baffle is controlled by an eccentric ring attached to the top of the slide bar, which automatically switches up and down as the slide bar goes up and down.

Li Zhi rode to Fanjiazhuang every morning, and rode back to Tianjin in the evening, and spent more than 20 days working in the two places, solving a series of small problems, and successfully made a watt-type steam engine. The steam engine is not small, at least five cows.

Seeing that Li Zhi had made a watt-type steam engine, the blacksmiths who participated in the trial production of the steam engine watched the steam engine non-stop and were amazed.

Steel and flame combined and turned into something that could move, and the strength was still so great. Although the craftsmen participated in the trial production, they were only involved in the manufacture of some of them, and there were still many things that they did not understand, and they were amazed by the technology of the Grand Governor Li Zhi.

"Governor, this strength is greater than a few cows!"

"The Metropolitan Governor is too godly, this machine can be used in many places!"

"The Metropolitan Governor must be the reincarnation of Lu Ban!"

Li Zhi smiled and emphasized the confidentiality regulations to the craftsmen again.

Li Zhi plans to draw a scoop from the gourd and make two larger steam engines, so that they can be loaded on the ship and become the power source of the ship's paddle wheel.

A ship with a steam engine is a steamer, and it can go to sea at any monsoon time. Using a ship that can go to sea in all seasons to do maritime trade, Li Zhi seems to have seen a large amount of silver waving to him.

However, Li Zhi's two large ships are still being built, and it will take more than three months to be built.

Li Zhi took the time to go to Wangjiawan these days to have a look and teach those shipwrights to build ribs. The shipwrights were all veterans, and they made dense ribs on both sides of the keel. In addition to laying ribs, Li Zhi also had the shipwrights open twenty gun ports on the side of the second deck to serve as firing ports for the cannons.

After three months, the pointed ship was built, and the steam engine could be on board.

But the steam engine can do more than just ship engines, it can also power many industries.

This time, in the course of the battle between Gyeonggi and Tatar, Li Sik was deeply aware of the lack of armor in his troops. Without armor protection, soldiers are extremely vulnerable to enemy bows and arrows, and can be seriously injured even if they are shot by a thrown bow.

Although a large amount of Qing army cotton armor and chain mail were captured, as Li Zhi's forces expanded, these captured armors may not be enough. Moreover, most of the seizures were cotton armor, which was too hot to wear in summer, and there was a risk of heat stroke. Li Zhi prepared to make his own new armor, using high-quality crucible steel as raw material, and using a steam engine to drive a forging hammer to forge steel cuirasses, helmets, and shoulder armor.

With steel cuirasses, shoulder armor and helmets, the Tartar bow and arrow were basically lethal to Li Zhi's soldiers from a few dozen paces away. The armor-piercing ability of bows and arrows is extremely limited, especially in the face of armor forged from high-quality steel.

The forging hammer driven by a steam engine is also very simple, that is, a large hammer supported by a lever with a long wooden handle, which moves up and down. The steam engine pressed down on one end of the long wooden handle, and the lever lifted the sledgehammer and smashed it on the forging one by one. Compared with a man-powered hammer, a hammer driven by a steam engine has much more strength.

Such a forging hammer can increase the work efficiency of a blacksmith by dozens of times.

Several newly recruited blacksmiths were not used to Li Zhi's inventions, and they were shocked when they saw the hundreds of pounds of sledgehammers being lifted by the steam engine again and again, and smashed heavily on the anvils.

"Is this an immortal spell?"

"Governor, what kind of machine is this, this is too powerful, isn't it?"

Li Zhi smiled and said, "This is called a steam engine, it is the secret of my Fanjiazhuang, you can't tell the matter of this machine." Leakers, head off. ”

In fact, this steam engine is not afraid of leaks, except for Li Zhi himself, other craftsmen will not be able to understand the principle even if they dismantle the steam engine, let alone reproduce it. Moreover, the Ming Dynasty is now in chaos, and there are probably no people who are interested in stealing Li Zhi's steam engine technology.

However, Li Zhi was accustomed to keeping his skills secret, and subconsciously emphasized the confidentiality regulations to several forging craftsmen.

Hearing Li Zhi's words "lose his head", several craftsmen's faces turned pale. Who is the Grand Governor? Killing a few craftsmen is not like killing a chicken. The craftsmen were determined not to tell anyone about the steam engine, and they couldn't say anything about it even if they were killed.

Li Zhi looked at a few craftsmen and asked, "With this steam engine, how many days can you forge a set of armor?" ”

Several craftsmen looked at the forging hammer, pondered for a while, and began to discuss.

Finally, one of the leading craftsmen said: "With such a big sledgehammer smashed, any steel can be forged, and I am afraid that a set of armor can be forged in one day." ”

A set of armor a day, this efficiency is quite high, Li Zhi nodded.

Li Zhi recruited thirty new blacksmiths to make armor, and it is estimated that these thirty blacksmiths can make more than 10,000 sets of armor and helmets a year with the help of steam engine forging hammers. Li Zhi recruited fifteen handymen to manage the steam engine, adding firewood and water to the steam engine.

Of course, Li Zhi's steam engine had just been developed, and now he only had one test model on hand. In the next few months, Li Zhi's steam engine team will have to increase the number of people and work overtime to produce the watt-style steam engine. Li Zhi called this steam engine, which had about the same strength as five oxen, the No. 1 medium-sized steam engine, and was ready to produce forty units. Thirty of them were intended for the armor workshop, and ten were spared.

So many steam engines can only be produced one by one, and it will take at least half a year to complete them all. (To be continued.) )