"Master, Master, my wife has rejected my project, you have to make the decision for me." Chen Xi took Yang Fan's arm and shook it vigorously.
The little girl's face turned dark immediately. Lin Yueru suppressed laughter on the side.
"Okay, okay, I understand, is this the car you built?" Yang Fan stared at the monster in front of him with a black line on his forehead. Yes, in Yang Fan's opinion, he is a monster.
Yang Fan was also dumbfounded. Chen Xi's little head was full of weird thoughts. This car is actually rear-wheel drive. I-beam riveted chassis, two large wheels at the back and two small wheels at the front.
A Newcomen steam engine is installed at the rear of the car. The piston of the cylinder moves upward, pushing a portal-shaped frame. The bottom of this frame is connected to two wheels with a crankshaft.
In this case, the upward movement of the piston will continuously lift the door-shaped frame upwards. When the frame falls, the linear motion is converted into circular motion through the crankshaft. Make the wheels turn.
This drives the wheels to continuously move forward, so this is a rear-wheel drive car. The two wheels in front finally gave Yang Fan some comfort. By studying the information Yang Fan gave her, she made the steering wheel. This invention was not invented until the end of the 19th century.
"Master, how about you and the ladies drive me back to the mansion. It will definitely be faster than riding a horse." Chen Xi suggested. She was trying to pass the actual ride. Let Yang Fan understand how powerful her invention is.
Yang Fan looked at it with some pain. This car was not equipped with any shock absorbers. It's not easy to walk on the way back. Her car has neither shock-absorbing steel plates nor a suspension system, so I'm afraid it won't be comfortable.
"Okay, but I don't think your car can hold too much coal and water. What will you do if there is no fuel on the road?" Yang Fan looked at the car and said.
This car is about five meters long. The boiler and steam engine at the back take up more than one meter. In front is a place for coal boxes and workers. The only space that can actually accommodate people is the three square meters in front. There is not enough room for too many people.
This car is not equipped with chairs, so you can only stand.
Chen Xi blushed and muttered: "Master, after all, this is a new thing and it still needs development. This car needs two carriages to follow it as a support vehicle. One car is filled with coal and the other is filled with water. "
Xiao Niangpi felt her tooth hurt when she heard this. She glanced at Yang Fan and felt her hands tremble. Now you understand why I rejected the funding. What is the use of this thing? Might as well use a carriage.
Yang Fan turned his head and saw the little talented girl with pitiful eyes. Feeling a little unbearable, I said, "Okay, I'll take your car back today."
Yang Fan was also speechless. Yang Fan turned around and said to everyone: "Do you want to take a bus back to the city?"
Although Xiao Niangpi thinks this thing is not practical and is unwilling to approve funding. However, this thing is so fun, and she has no objection to it being used as a toy.
"Master, I'm happy to take this car." Xiao Niangpi was eager to try.
"Master, I want to ride in this car too. This car looks so fun." Lin Yueru also followed suit.
Zhang Shize also clamored to sit down. So everyone stopped the experiment and decided to take the car back to the mansion in Houhai first.
Anyway, the large incendiary bomb will be tested in Yongding River tomorrow. Finished work early today. Yang Fan explained Zhou Yuji's training in the next few days and left.
By this time the soldiers had finished their meal, tonight it was sourdough bread and seafood and vegetable soup. Seafood is the catch brought back by the first trawler newly built by Beitangkou Shipyard. Vegetables are dehydrated vegetables.
After dinner there is an hour of free time. The soldiers were walking in the yard. Although this place has been abandoned for hundreds of years. But it is a royal garden and hunting garden after all. The scenery is still good.
At this time, a strange car drove over in the distance. Standing in front of the car were Marshal and Zhang Shize. There are also a few female rolls.
Someone who knows knows whispers that those two are the handsome ladies, both of whom are Dongchang's crotches. The soldiers were so frightened that they shrank their necks.
I saw this car, with black smoke billowing from its butt, and white steam spraying from the whirring cylinder. It is especially obvious in cold weather.
The speed of the car is not very fast, it is about the same as riding a horse at a medium speed. In the morning light, I saw many people watching and blowing the whistle.
Dududu! The sudden sound of the whistle startled the soldier. Scatter away quickly. Zhou Yuji and his officers also hurried over to see what was going on.
He was also shocked when he saw the marshal, his wife and Zhang Shize standing on a car that was spitting fire and smoke.
Yang Fan waved his hand and told them to go ahead and do what they were supposed to do. Don't hang around here. Soon the steam car drove out of Dahongmen under the driving of Chen Xi.
The carriages they met along the way were frightened and gave way to them.
When we got to Yongding Gate, the officers and soldiers guarding the gate were frightened and they didn't know what it was. He quickly stopped him, and hundreds of households were so frightened that they wanted to close the city gate.
Zhang Shize cursed angrily, and Baihu had no choice but to let these men in.
After entering Yongding Gate, people gathered quickly. In fact, the people of the Ming Dynasty were not as numb and ignorant as the people of the Qing Dynasty. Still curious and receptive to new things.
The more people watching, the more excited I become. She is just playful and doesn't look like a married lady at all. It was also Yang Fan who used to let them be happy.
When the car entered Xuanwumen, many people were alarmed. There were huge crowds of people watching the excitement on both sides of the road.
Yang Fan said to Chen Xi: "Although I don't agree with you to continue to develop this project, it is worthy of recognition that it has gone such a long way without any failures."
Chen Xi's little face fell, and she was a little discouraged when she heard that the master was not optimistic about her design.
However, she still tried hard and said: "Master, this car is indeed inefficient. I did some calculations and found that the efficiency is only about 1%. It can't pull too much cargo. However, I came up with a new design."
Of course Yang Fan knew that the thermal efficiency of this thing was definitely not good. The biggest problem with steam engines is that their thermal efficiency is too low. After Xinhua, the most efficient steam engine locomotive in history was built. The efficiency reached ten percent. This is already the pinnacle of the steam engine. The Newcomen steam engine, the most primitive steam engine, is so efficient.
"Oh, tell me, what other designs do you have?" Yang Fan asked.
"Master, I found that a lot of power was lost after complicated conversion. It is better to use the high-pressure steam from the steam boiler to directly impact the rotating blades. The blades are riveted on a shaft, and the transmission shaft is meshed with the wheel axle gear to drive the wheels forward. This It’s a design drawing”
As Chen Xi spoke, he held the steering wheel with one hand and took out a piece of paper from his arms with the other hand and handed it to Yang Fan. Yang Fan opened it and was shocked. Chen Xi was really a genius. He didn't even understand the steam engine, but he actually figured out the principle of the turbine.
The picture is relatively simple, that is, the air outlet of the boiler blows into a closed cake-shaped disc through a pipe, and inside are blades riveted to the power shaft.
The power shaft is a vertical end mounted gear. A gear with the same specifications is also installed in the middle of the wheel axle. The two gears mesh at an angle of ninety degrees.
In this way, the high-pressure steam blows the blades, drives the power shaft, transmits it to the axle, and drives the wheels to rotate.
This thing is very similar to the first steam turbine (turbine) in history. This machine was born in Beijing during the Kangxi period. The maker is missionary Tang Ruowang.
Yang Fan put away the drawings and said, "I didn't expect you to go this far. I was right to arrange for you to lead the Power Research Institute. When you get home, I will help you perfect this car."
No more today
