Curved beam motorcycles are indeed more fuel-efficient than straddle riding in actual use, and the reason why they can save fuel is nothing more than the following reasons.
1. The weight of the whole vehicle is light. Because the body structure of curved beam motorcycle is relatively simple, the curb weight is relatively light. The self-weight of such vehicles is basically around 100kg, and the lightest straddle-type motorcycle is basically around 120kg. This difference will consume less electricity in actual driving.
2. The tire is very thin. Although the thin tires will lose the stability and comfort of the vehicle, it will help the vehicle to improve the fuel consumption level to some extent because of the small driving resistance.
3. The engine displacement is small, and the curved beam motorcycle is smaller than the straddle car. Although there will be 125cc cars, they are actually much smaller than straddle bikes. After all, this kind of car is basically 1 10cc.
The above three points are quite obvious. The main reason why the fuel consumption of underbone is lower than that of straddle riding is that there is another key factor that determines the fuel consumption of vehicles, that is, the engine structure.
Drivers who know something about the data of the underbone engine will find that this engine will release the maximum torque at around 5000 rpm and the maximum power at around 7000 rpm, and even some underbone engines will be ahead of these two speeds.
The most direct performance of such dynamic characteristics and engine adjustment is that its low torque will be stronger and fuel consumption will be lower. In order to make the engine realize low-speed power output, the undermounted engine generally adopts the design of long connecting rod and small piston.
In addition to the structure and adjustment of the engine, underbone will pay more attention to the performance of vehicle fuel consumption. The rear sprocket of this kind of car will basically keep about 36 teeth, while the front sprocket will be 14 teeth, so the speed will be faster at the same speed.
From the above introduction, we can see that the fuel consumption of curved beam motorcycle is lower than that of straddle-type bicycle, except for some obvious reasons, which is mainly directly related to the design of its engine at low speed and high speed. If the straddle bike is designed in this way, it can still save fuel, but the stamina will be less, so this phenomenon can only be said that the models are different and the final performance is different.
The bottom is very light. Absolutely fuel-efficient. . And a horizontal engine. The air inlet has a long aluminum throat. It's S-shaped. Ran away. The vaporized gas passes through the high temperature throat and changes direction twice, so that it is completely atomized and evaporated! So the combustion is full. This vertical engine is not available. The flash point of gasoline is 400 degrees Celsius. I haven't seen gasoline explode in my throat because the temperature in my throat is very high. At least I haven't seen it. . But the windward area of the recumbent machine is too small. It's too hot to run a long distance, and the car can't go! That is, the intake air reaches the cylinder and explodes directly without doing work. Therefore, it is a problem to improve the air cooling efficiency of the sleeper. Every bed machine has this problem. The oil evaporates into white smoke. You can see it by opening the oil filling window after a long trip! So lie on the machine and run a long distance, be sure to bring oil. Check the oil every 100 km. It is safe to have regular rest. I really can't run for a long time. My volcano video has various introductions. The piston is also patented. I hope I can help you.
Underbone mainly has small displacement, thin tires, light weight and slow speed, so it saves a little fuel. In fact, it is similar to straddle riding with the same displacement, and it does not save much fuel.
Hello, everyone, I know cars! Professional knowledge to answer your questions!
The subject asked underbone why he felt more fuel-efficient than riding a bike. I'm here to talk about my views on this issue.
When a new car is used, the curved beam with the same displacement is generally more fuel-efficient than straddle riding, but it is not necessarily the case when the car is old. If the car is in poor condition after the old car, then the fuel consumption of underbone may be similar to that of straddle riding.
The working principle of motorcycle engine with curved beam structure is the same as that of ordinary motorcycle engine, except that the compression ratio is relatively low, the rotation speed is high and the gear transmission ratio is small, so the torque is also relatively low. Similar to the scooter engine, it is suitable for city riding, and the reason for low fuel consumption is that there is no heavy load, so it is difficult to meet the requirements of harsh environments such as mountainous areas and off-road areas.
I hope the above answers can solve your questions. Welcome everyone to discuss together!
The most basic thing is that the engine is inefficient, the body is light and the wheels are small, which is more fuel efficient than riding a motorcycle. There is no need to explain too much.
Fuel saving, portability and flexibility are the biggest advantages of underbone. Because the displacement is small, mostly in 100cc and 1 10cc, and the body is relatively light, powershift is used. But underbone is not as comfortable as scooter, and cross-country and load-bearing are not as good as straddle riding.
Underbone's fuel economy is actually an illusion. Because of its small displacement and light body, it is more fuel-efficient than other larger cars. In fact, it consumes more oil than a bicycle with the same displacement, which is determined by its clutch mode (the lower bone clutch is automatic centrifugal clutch and the bicycle is manual clutch). The fuel-efficient car I have experienced must be Jialing 70.
Brother, your feelings are wrong!
It's not a feeling, but it really saves fuel. Because the frame is lighter. Shift mode saves fuel. The most important thing is that its displacement is generally 50cc to 1 10cc, and even the displacement is relatively small. The friction of the chain is also relatively small, because it is generally oiled. The tread is also narrow. The narrower the tread, the smaller the friction and the more fuel-efficient.
The frame under the car is thin, the tires are thin, the riding is unstable, and it is unsafe to run. Fuel economy is a trade-off. I still like the exercise pedal, which runs stably, giving consideration to flexibility and comfort. An extra liter and a half of fuel consumption is not a problem. The point is that the choice is too narrow now.