Where is the last chance filter in a fuel system located?

The last chance filter in a fuel system is positioned just before the spray nozzle. This location is crucial because it serves as a final filtration step to ensure that any remaining particulates, contaminants, or impurities in the fuel are caught before the fuel is injected into the combustion chamber. By placing the filter at this point, it protects critical engine components from potential damage caused by issues in the fuel.

This placement is especially important in turbine engines, where the performance and reliability are highly dependent on the cleanliness of the fuel. If contaminants were allowed to pass through to the combustion chamber, they could lead to inefficient combustion or even engine failure. Therefore, locating the last chance filter just before the spray nozzle plays a vital role in maintaining engine integrity and operational efficiency.