What is the normal intake air flow in kg/h?

[DeBeckett]

Intake air flow varies greatly depending on engine design and displacement, and there is no uniform figure. Engine intake air flow is generally controlled by the throttle. Below is an introduction to the throttle: 1. Throttle: The throttle is a controllable valve that regulates air entry into the engine. After entering the intake manifold, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. Connected to the air filter at the top and the engine block at the bottom, it is often referred to as the throat of the car engine. 2. Types: There are two main types of throttles—traditional cable-operated and electronic. In traditional engines, the throttle control mechanism operates via a cable (flexible steel wire) or rod, connecting the accelerator pedal to the throttle linkage plate. Electronic throttles primarily use throttle position sensors to adjust the throttle opening angle based on the engine's power demand, thereby regulating the intake air flow.