Most motorcycles will use a four-stroke gasoline engine, which works on the same principle as an automobile engine.
A four-stroke gasoline engine has four strokes when it works, namely, intake stroke, compression stroke, power stroke and exhaust stroke.
When the engine is in the intake stroke, the intake valve will open and the piston will run downward to suck in the combustible mixture.
When the engine is in the compression stroke, the intake and exhaust valves will be closed and the piston will run upward to compress the combustible mixture.
When the engine is in the power stroke, the intake and exhaust valves will be closed. At this time, the spark plug will ignite the combustible mixture, and the burning combustible mixture will push the piston to move downward, so that the engine can output power.
When the engine is in the exhaust stroke, the exhaust valve will open, and the piston will move upward at this time, so that the exhaust gas in the cylinder will be discharged.
When the engine is working, the engine will cycle these four strokes continuously.
The fuel economy of four-stroke engine is better than that of two-stroke engine, and the exhaust emission is also lower than that of two-stroke engine.
The difference between moped and electric car
The moped is equipped with an internal combustion engine, and it needs to consume fuel. The electric vehicle is driven by a motor, and it does not need to consume fuel. Electric vehicle is a kind of transportation with simple mechanism. The main components of electric vehicle include frame, motor, battery and controller.
The controller is a component used to control the circuit of the whole vehicle. The controller is generally fixed under the back seat.
If there is no controller, the electric car can't run normally.
Motor is the power source of electric vehicle, which can drive the vehicle forward.
Battery is a component used to store electric energy in electric vehicles, which can supply power for all electronic devices in electric vehicles.
The battery is also a vulnerable part that needs to be replaced regularly. With the increase of charge and discharge times, the performance of the battery will continue to decrease.
During the charging and discharging process, the ions in the battery will move in the electrolyte, and some ions will react with the electrolyte when they move in the electrolyte.
With the increase of charge and discharge times, the number of ions in the battery will decrease continuously, so the performance of the battery will also decrease.
If you can maintain the correct car habits, you can effectively extend the service life of the battery.
Be sure to use a suitable charger when charging, and be sure to prevent the battery from overcharging.
If you don't need to use the car for a long time, you should also charge the battery regularly, otherwise the battery will be in a power-off state. (Photo/Text/Photo: Ask and Answer Animals) @20 19