A fuel filter is a filter used to screen out foreign particles or liquids from the fuel. Most internal combustion engines use a fuel filter, in order to protect the components in the fuel system.
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Filters for foreign particles edit
Unfiltered fuel may contain several kinds of contamination, for example paint chips and dirt that has entered the fuel tank while filling, or rust caused by moisture in a steel tank.[citation needed] If these substances are not removed before the fuel enters the system, they will cause rapid wear and failure of the fuel pump and injectors.[1]
The filters are normally made into cartridges containing a filter paper.[citation needed] Fuel filters need to be maintained or replaced at regular intervals.
Filters for foreign liquids edit
Some diesel engines use a bowl-like design to collect water in the bottom of the filter (as diesel floats on top of water).[citation needed] The water can then be drained off by opening a valve in the bottom of the bowl and letting it run out, until only the fuel remains.
See also edit
References edit
- ^ "How long do fuel injectors last?". HowStuffWorks. 14 July 2010. Retrieved 19 November 2022.