Throttle bodies and carburetors. Understanding the key differences
If you’ve been hanging out in car enthusiast forums for a long time, you can probably see a lot of people arguing about which is better, the throttle or carburetor. Throttle body and carburetor are two different parts of the engine, they play different roles in the operation of the engine. The main difference between them the following four aspects.
| Difference | Throttle Body | Carburetor |
|---|---|---|
| Definition | A device that controls the engine’s intake flow | A device that mixes gasoline and air |
| Principle | Controls the air flow to adjust fuel injection | Sprays gasoline into the mixer and mixes it with air to form a mixture |
| Application | Commonly used in modern car fuel injection systems | Commonly used in early cars and mechanical equipment |
| Control Method | Combined with electronic control unit | Adjusted manually or mechanically |
| Fuel Mixture Method | Adjusts the mixture ratio by controlling the injection quantity and time through fuel injection system | Adjusts the mixture ratio by adjusting the throttle and air valve |
| Efficiency | More precise fuel control, improving fuel efficiency and environmental performance | Less accurate mixture ratio compared to modern fuel injection systems, lower fuel efficiency and environmental performance |
| Applicable Scope | Widely used in modern car fuel injection systems | Gradually being phased out, mainly used in some old cars and mechanical equipment |
With the development of technology, carburetors have gradually withdrawn from the automotive industry due to environmental and economic requirements, and more and more fuel cars are using fuel injection systems that replace carburetors with electronic throttles. Throttle can more accurately control the amount of fuel injection and injection time to achieve better fuel economy and power output.
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