Definition
A filter that uses centrifugal force to separate solid contaminants or heavier fluids from a lighter fluid. The fluid is spun rapidly inside the filter, and the heavier particles are flung outward to the wall of the housing where they collect, while the cleaner fluid flows out from the center.
Plain English
A filter that cleans a liquid by spinning it fast. Heavier dirt and particles get thrown to the outside, and the cleaner liquid comes out the middle.
Context Anchor
Seen in aircraft engine and maintenance discussions, especially when describing how oil or fuel is kept clean inside an engine system.
Derivation
Centrifugal comes from Latin centrum (center) and fugere (to flee). A centrifugal filter literally makes heavier matter 'flee from the center' as the fluid spins.
Why Pilots Care
Maintains clean oil to reduce engine wear and prevent failures.
Analogy
Think of a salad spinner. As you spin the basket, water flies outward through the holes and the leaves stay drier in the middle. A centrifugal filter works on the same idea, but it keeps the clean fluid in the middle and traps the dirt on the outside.
Intuition Check
A centrifugal filter is not just a screen that catches dirt as it passes through. Its key action is spinning the flow so heavier material moves outward and can be collected.
Example Sentence 1
The mechanic disassembled the centrifugal filter and found a buildup of metal particles on the inside of the housing.
Example Sentence 2
By using centrifugal force, the filter removes contaminants without needing frequent element changes.