"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 a smile 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, it was a monster.
Yang Fan was also dumbfounded. What kind of weird ideas were in Chen Xi's little head? This car was actually rear-wheel drive. It had an I-beam riveted chassis, two large wheels at the back, and two wheels at the front.
A small wheel.
A Newcomen steam engine is installed at the rear of the car. The piston of the cylinder moves upward and pushes a portal-shaped frame. The bottom of this frame is connected to two wheels by a crankshaft.
In this case, the upward movement of the piston will continuously lift the door-shaped frame upward. When the frame falls, the linear motion will be converted into circular motion through the crankshaft, driving the wheels to rotate.
This can drive the wheels to move forward continuously, so this is a rear-wheel drive car. The two wheels in the front finally gave Yang Fan some comfort. By studying the information Yang Fan gave her, she made the steering wheel. This item
The invention was not invented until the end of the 19th century in later generations.
"Master, how about you and the ladies ride my car back to the mansion. It will definitely be faster than riding a horse." Chen Xi suggested. She wanted to let Yang Fan understand how powerful her invention is by actually riding it.
Yang Fan looked at it with some pain. This car was not equipped with any shock absorbers. It was not easy to walk on the way back. Her car had neither shock absorbers nor a suspension system, so it might not 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 body and said.
This car is about five meters long. The boiler and steam engine at the back take up more than one meter. In the front are coal boxes and workers. The only space in the front that can actually stand people is three square meters. There is not 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 it. She glanced at Yang Fan and her hands were wet. Now you understand why I rejected the funding. What is the use of this thing? It is better to use a carriage.
Yang Fan turned his head and saw the little talented girl with pitiful eyes. He couldn't bear it and 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 impractical and is unwilling to grant funding. However, this thing is fun and she has no objection to it being used as a toy.
"Master, I am 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 take a seat. So everyone stopped the experiment and decided to take the car back to the mansion in Houhai first.
Anyway, the large-sized incendiary bomb will be tested at Yongding River tomorrow. Work ended early today. Yang Fan explained Zhou Yuji's training in the next few days and left.
At this time, the soldiers had finished their meal. Tonight was bread pancakes and seafood and vegetable soup. The seafood was caught by the first trawler newly built by Beitangkou Shipyard. The vegetables were dehydrated vegetables.
After dinner, there was an hour of free time. The soldiers were all walking in the yard. Although it has been abandoned for hundreds of years, 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 Zhang and Zhang Shize. There were also several female students.
Someone who knew about it whispered that the two wives were the commander-in-chief's wives, both of whom were from Dongchang. 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 was especially obvious in the cold weather.
The speed of the car was not very fast, it was about the same speed as riding a horse. In the early morning light, I saw many people watching and blowing the whistle.
Dududu! The sudden sound of the whistle startled the soldiers and they quickly ran away. Zhou Yuji and his officers also hurried over to see what was going on.
I was also shocked when I saw the commander, his wife, and Zhang Shize standing on a car that was spitting out fire and smoke.
Yang Fan waved his hand and told them to go and do what they were supposed to do and not to watch here. Soon the steam car left the Dahongmen under the driving of Chen Xi.
The carriages they met along the way were frightened and gave way to them one after another.
When we got to Yongding Gate, the officers and soldiers guarding the gate were frightened. They didn't know what it was. They stopped them quickly. Hundreds of households were so frightened that they wanted to close the city gate.
Zhang Shize angrily cursed, and Baihu had no choice but to let these men in.
After entering the 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. They were still curious and receptive to new things.
The more people onlookers, the more excited the little girl becomes. She is very playful and does not look like a married lady at all. It is also Yang Fan who is used to letting them enjoy themselves.
When the bus entered Xuanwumen, many people were alarmed. There were huge crowds of people on both sides of the road watching the excitement.
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 the thermal efficiency is too low. After Xinhua, they built the most efficient steam engine locomotive in history. The efficiency reached 10%. This was already the pinnacle of steam engines. New York
Komen steam engine, the most primitive steam engine, how efficient can it be?
"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 pocket with the other hand and handed it to Yang Fan. Yang Fan opened it and was shocked. Chen Xi is such a genius. He didn't understand the steam engine yet, but he actually came up with the turbine.
The principle of the machine.
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 90 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 manufacturer was the 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
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