strömningsförgasare

Strömningsförgasare, often translated as flow carburetor or venturi carburetor, is a type of fuel system used in internal combustion engines. It operates by utilizing the Venturi effect to atomize fuel and mix it with incoming air. As air passes through a narrowed section of the carburetor, known as the Venturi, its velocity increases and its pressure decreases. This low-pressure area draws fuel from a fuel jet into the airflow, where it is broken down into fine droplets.

The amount of fuel drawn into the engine is controlled by a throttle valve, which regulates the volume of air passing through the Venturi. A float chamber maintains a constant level of fuel available to the fuel jet, ensuring a consistent fuel supply. Different designs exist, but the fundamental principle of using airflow to aspirate fuel remains the same. Strömningsförgasare were widely used in early automobiles and are still found in some small engines, motorcycles, and older aircraft. They are known for their relative simplicity and cost-effectiveness. However, they can be less precise in fuel metering compared to modern fuel injection systems, potentially leading to less optimal fuel efficiency and higher emissions.