Siheyuan starts from a better life

Chapter 421, Power-assisted Bicycle
After the beginning of autumn, the days gradually became shorter and the nights became shorter. After dinner, it became dark at 06:30. Under Jiang Yan's command, the lights installed in the yard were lit.

Everyone gathered around Jiang Yan to see where he was messing with the bicycle he had just bought for Jiang Sirui. In just a moment, Jiang Yan dismantled the good bicycle into pieces.

"Stone, go and get all my tools. By the way, bring me all the parts you brought back tonight."

After hearing Jiang Yan's instructions, Shitou responded, took the parts that Jiang Yan brought back, turned around and went to get the parts that Jiang Yan brought back, and then went to the house to get his own tools. Brought it over.

With all the tools in hand, Jiang Yan began to install the parts he designed on the straight bicycle.

Jiang Yan had thought about turning the bicycle into a simple motorcycle before, but that would have too many improvements, and it would not be very beautiful after the improvements, so Jiang Yan canceled the idea.

Then I thought of the extremely popular power-assisted bicycles in later generations. Power-assisted bicycles do not have control valves. Instead, they automatically complete the power-assisted acceleration process through the cooperation of a torque sensor and a motor controller. However, there is obviously no motor driver now, and Jiang Yan's design uses oil instead of electricity. , so the functionality needs to be redesigned.

So Jiang Yan could only find another way, which also uses a torque sensor to cooperate with the engine to provide assistance. As long as you ride up and step on the bicycle, the engine will start to provide assistance to the bicycle. The faster you climb, the faster you will go.This operation is relatively simple.

Jiang Yan uses an engine installed in the middle of the body, that is, the bottom bracket position. The mid-mounted engine is connected to the frame, and is connected to the rear wheel through a chain to transmit power. At the same time, pedals are installed on both sides of the engine. When there is no oil in the engine, the rider can use pedals to achieve manual riding, and the resistance is no different from that of a normal bicycle.

With the help of stones.The bicycle was quickly reinstalled. After installation, Jiang Yan immediately filled the fuel tank with oil.

After adding oil, Jiang Yan immediately got on the bicycle and started wandering around the yard. He made sure that if he stepped on the pedals faster, the engine would start and then provide kinetic energy. Thanks to the assistance of the engine, , the riding time is quite easy and the speed is much faster. Through experience, I can provide a hundred meters of power by climbing a few times, which is quite labor-saving.

After Jiang Yan rode for a few laps, he came down and adjusted it again before pushing the modified bicycle in front of Jiang Sirui.

She proudly pointed to the modified bicycle and said to Jiang Sirui: "This is a power-assisted bicycle that I modified for you. You will not be so tired when you ride to work in the future. Come and try it."

After Jiang Yan said this, he took Jiang Sirui's hand and put her hand on the handle of the car.

As for the power-assisted bicycle Jiang Yan was talking about, Jiang Sirui was a little confused. After all, she was also a researcher, and she was familiar with the engine. In her opinion, Jiang Yan just added an engine to the bicycle, but there was no engine switch. .

With a fresh feeling, Jiang Sirui rode directly on the bicycle. At first she couldn't let go, but as the engine started, she felt the benefits of the bicycle with the engine installed. It was too easy and effortless. She couldn't help but admire Jiang Yan's idea. She didn't know how he came up with such a brilliant idea.

After riding for two laps, Jiang Sirui stopped immediately.

"How do you feel?" Jiang Yan asked.

Hearing Jiang Yan's question, Jiang Sirui was quite happy. He pulled Jiang Yan and said directly: "Yes, I feel it is too labor-saving and the speed is not slow."

After saying this, she asked Jiang Yan directly.

"Brother Jiang Yan, what speed can the engine you designed reach and how far can it run with one refueling?"

Hearing Jiang Sirui ask, Jiang Yan pondered for a moment and said: "The engine I designed has only five horsepower. This engine alone can reach a maximum of 20 kilometers per hour. But now that it is installed on the bicycle, I have simplified it a bit. , this engine has less than four horsepower and can reach [-] kilometers per hour. It can run [-] kilometers with one refueling, which is relatively fuel-efficient."

Jiang Sirui is not a person who doesn't know anything. He originally thought that this engine would be small and only have about three horsepower at most. He never thought that such an engine could reach the power of five horsepower.

To be honest, it is a bit wasteful to put such an engine on my bicycle. You can completely use this engine for other things. "Boss, can you let me ride?" Xu Damao, who was visiting the bicycles, suddenly ran over and flattered Jiang Yan.

When they were installing the bicycle just now, several of them looked at it with surprise the whole time. When it was completely installed, their jaws dropped.

They didn't know what a power-assisted bicycle was at all. They only knew that the bicycle could be converted into a motorcycle. Thinking of this, everyone felt itchy in their hearts.

Although Jiang Yan's son-in-law did not refuse their use, and they could ride it for a few laps from time to time, after all, this thing belonged to the boss and not their own, and it would not be good or convenient to occupy it for a long time.

Everyone has a bicycle. If it was modified into a motorcycle, it would be quite cool.?But the performance is not yet clear.

Xu Damao couldn't control himself at first, so he ran directly to Jiang Yanqian and asked, and then he wanted to ride on it and give it a try. No one else was so shameless.

"You want to ride it! Ask your sister-in-law, that's her bicycle." This is something I gave to my wife, and it's never good to make the decision rashly.

"Sister-in-law, look." After listening to Jiang Yan's words, Xu Damao turned his head and looked at Jiang Sirui flatteringly.

This immediately made Jiang Sirui red.He quickly agreed within a few days.

The result was great. Everyone came over to ask Jiang Sirui if he wanted to ride the car. After a while, cheers rang out in the yard.

"Is it easy to produce this thing?" Jiang Sirui asked Jiang Yan.

"It's okay! It's not too difficult. It's not something too deep. I have the blueprints. If you want, you can just take them."

Hearing Jiang Yan's words, Jiang Sirui nodded slightly. He wanted to see what the drawing looked like.

"Boss, do you know how much it costs to modify a bicycle like this? Which one of mine can be modified?"

"Of course it can be modified. It doesn't cost much. The cost of modifying the parts for your sister-in-law's bicycle is less than 50 yuan."

"Where can it be produced?" He Yuzhu asked next.

"If you want to go find Liu Haizhong, the parts on that bicycle are the ones produced in their workshop. Bring them back and I will help you modify them."

It was naturally impossible to install it for them. He had already taught Shi Shi step by step during the installation. As long as they bought the parts for modification, Jiang Yan would let Shi Shi do it while he was there to guide them.

What Jiang Yan didn't know was that Jiang Sirui took the design drawings to the aviation bureau for research with Jiang Yan's consent. He didn't expect to happen to meet the leader who came over for inspection, but it turned out that the leader of the aviation bureau took this small engine and did it. Many articles.

Similarly, with the help of this engine, Jiang Sirui was promoted quickly.

(End of this chapter)