Oil filters are devices that are used to decontaminate oil, which contains
suspended impurities. One of the prime applications of oil filters is in the
forming part of engine lubrication system in which a filter is typically a
detachable unit due to the requirement for regular service or replacement.
The filtration of oil in engines is vital to enhance the performance and
longevity.
A prime application of filter is in the reciprocating engine, which is
normally found in automobiles, light aircraft and various naval vessels. An
oil filter improves the performance of automatic transmission and gearboxes
of vehicles. In addition, turbine engines, like those on jet aircraft,
require the use of oil filters. A variety of industrial applications, such
as mining equipment, generators and metalworking machinery, require oil
filtration in some form. Of course some industries, like the oil-production,
oil-transmission and oil-recycling industries themselves utilize filters.
Types:
Oil Filters can be primarily classified into three main categories -
Design:
An oil filter comprises of five components - housing, top cap, filter,
inner support and bottom cap. The housing, top cap and bottom cap forms the
casing, while the inner support and the filter makes the cartridge. Given
below is the simplified model of an oil filter.
Engine Oil Filter: 
- A polyester media is woven into the fiber paper element for increased
efficiency and durability.
- Metal end caps render extra strength and better seal (In the case
application permits).
- Rubber gaskets in oil filters resist decomposition in cases where
paper or cork gaskets could fail. All gaskets are totally glued to end
caps rendering integrity to the seal.
Advantages:
- Extends the overall life and performance of engine
- Delivers more horsepower for the drive train
- Improve oil lubricity and additive lubricity
- Improve emissions
- Lower temperatures
- Reduces spark plug fouling
- Improve mileage
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