What are the components of an electronically controlled fuel system?
2 Answers
Electronically controlled gasoline injection systems mainly consist of three major components: the air system, fuel system, and control system. Below is a detailed introduction: 1. Definition: The Electronic-Fuel-Injection (EFI) system—commonly referred to as gasoline injection—is an advanced fuel injection device that replaces the carburetor in gasoline engines. With the widespread adoption of electronically controlled gasoline injection technology in gasoline engines, the atomization of liquid fuel during the mixture formation process is improved. More importantly, it allows precise control of fuel injection quantity based on varying operating conditions, leading to more complete combustion, thereby enhancing power output, reducing fuel consumption, and meeting emission regulations. 2. Classification: Based on the method of measuring intake air flow, EFI systems can be categorized into three types: mass flow control, speed-density, and throttle-speed. The mass flow type is further subdivided into hot-wire, vane, and Karman vortex types, depending on the air flow meter used.
Oh, I love diving into how my car's fuel injection works—it's fascinating! The electronic control system includes the fuel pump tucked away in the tank, which sends gas up to the injectors that squirt it straight into the engine cylinders. Then there's the brain, called the ECU computer; it uses sensors like the air flow sensor measuring incoming air, oxygen sensor monitoring exhaust gases, throttle position sensor tracking pedal inputs, and sometimes temperature sensors too. Plus, the fuel pressure regulator keeps everything balanced, and a good filter prevents clogs. Without any part working right, you could face rough starts or poor fuel economy, so I always recommend getting regular check-ups to catch wear early. It's like a precision dance where each piece matters for smooth performance!
