What do ejectors do in a fuel system?

Ejectors in a fuel system play a crucial role in the efficient management and delivery of fuel. Their primary function is to collect and direct fuel toward the fuel pumps. The mechanism relies on the principle of fluid dynamics, where the ejector creates a low-pressure area that draws fuel from the tank or reservoir. This is important because it helps maintain the proper flow and ensures that the pumps receive a consistent supply of fuel, which is essential for engine performance.

In contrast, the other options describe functions that do not align with the role of ejectors. While boosting pressure in the fuel tanks, filtering contaminants, and controlling fuel temperature are all essential functions within a fuel system, they are carried out by other components, such as fuel pumps, filters, and temperature regulation systems. Understanding the specific role of ejectors helps clarify their importance in the overall operation of aircraft fuel systems.