The pentagonal plum blossom-shaped mortise and tenon joint mentioned by Master Wang has completely solved the last problem of steam engines so far - the exhaust valve sealing.
Drill a regular round hole in the boiler for the vent.
A lightweight alloy cylinder of the same specifications was hollowed out and set into a pentagonal plum blossom-shaped mortise and tenon joint.
The five-cornered plum blossoms are retracted into the interior of the cylinder and are as big as a round hole. But after entering the hole and letting go of the pull wire, the spring will push out the five pillars hidden inside.
Prop it up from the inside and fit it completely to the inner wall of the boiler. You can't pull out the mortise and tenon joint without pulling the string.
And this completely solves the exhaust valve's flexibility.
He summoned his apprentices and started forging. Master Wang held the drawing in his hand and asked, "Why do we need to build a chimney in this place of the boiler?"
"This is the exhaust stack."
"Isn't this unnecessary?"
"It's for safety. Otherwise, when the high-temperature steam is discharged, the direction will be irregular. What if it sprays on people? The chimney can be used to guide and direct the steam to be discharged in a fixed direction. It also reduces the noise."
Master Wang praised: "Oh, this is really true."
He turned around and kicked his apprentice again: "Be serious. A slight difference can make a thousand miles. Use the ruler given by Master Li to measure carefully. Don't get the specifications wrong."
The apprentice who was busy didn't mind and said with a smile: "Don't worry, master. I'm a skilled worker, so I won't get the specifications wrong."
"The piston must be sealed with good rubber, and it needs to be filled with oil, you know? This one is movable."
"I understand, master."
“…”
Master Wang simply moved his blacksmithing room into the Kyushu Institute of Physics. Li Zhen and others did not mind eating and sleeping with these blacksmiths at all, and even felt deeply sorry for them.
Master Wang is also a fanatic. It seems that men are naturally crazy about machinery. He didn't even want to make money anymore, so he spent every day hanging out in the Kyushu Institute of Physics, listening to things he didn't understand, and working hard to learn cultural knowledge.
Master Wang is very happy to participate in this scientific research environment. According to one of his jokes: I also want to leave a mark in the history of history. It is enough for my name to be mentioned in future history books. I have not come to this world in vain.
On the third day, the second generation steam engine appeared!
New calendar year 10,000, October 2nd, autumn. The real steam engine came out at this moment.
At the Kyushu Institute of Physics, a steel monster over half a meter high was loaded onto a four-wheeled flatbed truck. There was a horizontal bar on the front of the truck to control the direction, and there was a simple brake at the foot to stop the wheels.
There is no way to control the speed.
Li Zhen put a big red flower made of red silk on the handlebar with his own hands, picked up a piece of coal and threw it into the heating chamber under the boiler, and said with a smile:
"Who's coming?"
"I!"
"I come!"
"let me!"
"Enze comes, let Enze come."
"Hahaha, Enze, if it explodes again this time, just accept your fate."
“…”
Qin Enze licked his lips excitedly, with a terrifying smile on his ferocious face. He laughed and jumped on the world's first steam engine-driven trolley: "If I return the explosion this time, I will It seems that God does not allow us to touch the restricted area of steam, hahaha. But it is a pity that God allows us to move forward towards science."
Seeing the pressure gauge connected to the handlebar slowly climbing up, Qin Enze sat on the cart and moved forward anxiously: "How much pressure does it take to push? I'm so scared. Why don't you leave?"
Li Zhen said: "Don't be impatient. It needs inertia at first, but as it starts walking later, it will go faster and faster."
Everyone at the Kyushu Institute of Physics stood outside the door and began to roll out the red carpet, trying to make the road in front of the door as smooth as possible.
The villagers of Dafengtai spontaneously picked up brooms to sweep the roads into Laoshan County, constantly throwing aside the rocks on the road, and using sledgehammers to smooth the uneven ground.
"Finally researched it today?"
"I heard it's called a steam engine. This is the first experiment, but it must be successful."
"Haha, if this is really successful, then we won't need a carriage in the future. This steam carriage can replace the carriage. There is no need to rest. The horse has to sleep when it is tired. This machine is not needed."
"I hope it will be successful."
"It's really not easy for these children. God must bless them to succeed."
"God bless Kyushu."
"Get out of the way, everyone in front of you, get out of the way. The steam engine will come in a moment. Don't block the road and hit you."
"What? I heard that steam vehicles have been researched? We came here from Xiaofengtai after hearing the news."
"People from all over the country heard the news and came."
“…”
When the pressure gauge pointed to 20, Qin Enze suddenly held his breath. After a while, the veins on his neck undulated. He roared: "Success, it's moving!"
'Woooooo'
There was a sudden whine from the cylinder as the piston collided with the air pressure. A small wisp of white smoke began to overflow from the cylinder.
Li Zhen shouted: "Add more heat!"
Qin Enze turned around suddenly, picked up a few pieces from the pile of coal in the car and threw them into the stove.
The flames burned brightly, and the crank connecting rod began to swing greatly...
"It's moving, it's moving!"
With a scream, the cart slowly slid out of the gate of Kyushu Institute of Physics.
Qin Enze turned the steering wheel, turned a corner, and headed towards the main road.
Outside the door, everyone at the Kyushu Institute of Physics jumped up and down with joy, laughing as they looked at the cart that was slowly speeding up but was gradually speeding up.
Li Zhen also ran out quickly. Following the people from the Kyushu Institute of Physics, the villagers on both sides of the road chased the steam car.
"Ha ha ha ha."
"It really worked!"
"Steam car, successful."
“…”
The villagers' faces were filled with surprise as they looked at the cart that was constantly emitting white smoke and moving faster and faster. There is no horse and it is not a downhill road, but it just runs faster and faster, which feels endlessly magical.
"That's amazing. This is science."
"There is no horse-drawn carriage here, how does it move?"
"It's amazing. This car is amazing."
"It's so fast, I can't catch up. It's not tired yet."
“…”
Many villagers from Dafengtai quickly ran back to ride their horses and came out to chase them on mules. Those who were young and strong followed behind and ran as hard as they could. I can't catch up even if I'm running paralyzed.
"Too... too fast!"
“…”
Qin Enze drove the cart, filling it with coal and laughing as he rushed towards the city.
'Woooooo'
There was a whine in the peaceful Laoshan County. The soldiers patrolling the streets immediately turned their heads in serious anticipation, and the people strolling on the streets also turned back.
Everyone is petrified.
Looking at the street, a car with white smoke coming out quickly rushed over without a horse.
On top of the trolley, a young man with a disfigured face laughed crazily: "Get out of the way, get out of the way!"
Everyone, including soldiers and armors, all scurried towards the street in surprise. They were both curious and horrified as they watched the self-moving cart rushing past. It's as fast as a horse.
"what is that!"
"Oh my God, what kind of magic is this?"
"It moves on its own."
“…”
After a while, a scattered group of men chased after them from behind, each one of them with their tongues hanging out. While chasing the steam car, he shouted feebly:
"You can run so well."
"Why isn't it tired?"
“…”
(End of chapter)