What is the difference between electronic fuel injection engine and carburetor engine
The engine is an important device for starting and working vehicles and mechanical equipment. The engine runs on fuel, and the fuel supply requires the help of a carburetor. Previously, carburetors were the mainstay of engines, but later the electronic fuel injection fuel supply method emerged. Electronic fuel injection engines have good power, economy, and emissions, and are currently popular. Let's first take a look at the differences between the two:
1. The carburetor engine uses a throat located above the intake valve for fuel supply. When the airflow passes through the throat, negative pressure is generated, which continuously draws gasoline out of the main nozzle, enters the engine intake manifold, and flows into the cylinder.
2. The electronic fuel injection engine consists of an intake system, a fuel system, an electronic control system, etc. It provides information sensed by sensors installed in the engine intake system and body to the computer control system, accurately calculates the fuel supply required by the engine under various operating conditions, and provides the required pulse bandwidth to the fuel injector. Then, fuel with a certain pressure is injected into the intake pipe or cylinder through the injector.
3. The core of the fuel injection control system is the computer system, which calculates the air flow rate and engine speed as the basis, and focuses on controlling the fuel injector, igniter, and idle air regulator, so that the engine can obtain the optimal mixture under various working conditions, achieve the best working state, and generate maximum power output. Its biggest advantage is that it solves problems such as the distribution of the mixture in the intake pipe and fuel atomization, and can accurately and timely supply the optimal mixture required for engine operation. The biggest problem with carburetors is that they cannot evenly distribute the same amount of mixture to each cylinder.
4. The electronic fuel injection control system is superior to the carburetor, as it allows gasoline to burn more fully and thoroughly, generally increasing engine output power by about 5% and saving fuel by 5% to 20%. In addition, the starting and acceleration performance of the engine have also been improved, especially the emission of harmful gases has been effectively suppressed.
Both carburetor type fuel supply systems and electronic fuel injection type fuel supply systems require spark plugs for ignition!