WIX Fuel filter

From Wikipedia, the free encyclopedia

A fuel filter is a filter in the fuel line that screens out dirt and rust particles from the fuel. They are found in most internal combustion engines.

A fuel filter on a pickup truck, showing its mounting location on the firewall.

A fuel filter on a Yanmar 2GM20 marine diesel engine.

Fuel filters serve a vital function in today's modern, tight-tolerance engine fuel systems. Unfiltered fuel may contain several kinds of contamination, for example paint chips and dirt that has been knocked into the tank while filling, or rust caused by moisture in a steel tank. 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, due to the abrasive action of the particles on the high-precision components used in modern injection systems. Fuel filters also improve performance, as the fewer contaminants present in the fuel, the more efficiently it can be burnt.

Fuel filters need to be maintained at regular intervals. This is usually a case of simply disconnecting the filter from the fuel line and replacing it with a new one, although some specially designed filters can be cleaned and reused many times. If a filter is not replaced regularly it may become clogged with contaminants and cause a restriction in the fuel flow, causing an appreciable drop in engine performance as the engine struggles to draw enough fuel to continue running normally.

Some filters, especially found on diesel engines, are of a bowl-like design which collect water in the bottom (as water is more dense than diesel). The water can then be drained off by opening a valve in the bottom of the bowl and letting it run out, until the bowl contains only diesel. It is especially undesirable for water to be drawn into a diesel engine fuel system, as the system relies on the diesel for lubrication of the moving parts, and if water gets into a moving part which requires constant lubrication (for example an injector valve), it will quickly cause overheating and unnecessary wear. Also, because diesel engines require large amounts of compression to operate, water in the fuel system can be very dangerous as water cannot be compressed and may cause considerable engine damage. This type of filter may also include a sensor, which will alert the operator when the filter needs to be drained. In automobiles this usually causes an "idiot light" (customarily orange, and with the image of a fuel filter) on the dashboard to illuminate.

External links

• Replacing a fuel filter - Free video content from CDX eTextbook
• Detailed fuel filter replacement instructions

WIX filters

references from Wikipedia, the free encyclopedia
An air filters remove solid particulates such as dust, pollen, mold, and bacteria from air. Air filters are used in applications where air quality is important, such as in internal combustion engines, gas compressors, diving air compressors, gas turbines and others. The air intakes of internal combustion engines and compressors tend to use either paper, foam, or cotton media.

• Automotive cabin air filters
  The cabin filters are a pleated-paper filter that is located in the outside-air intake for the vehicle's passenger compartment. Some filters are rectangular. Others are shaped to fit the available space of the vehicles' outside-air intake. This filter is often overlooked by owners. Clogged or dirty cabin air filters can reduce airflow from the cabin vents, as well as introduce allergens into the cabin air.
• Internal combustion air filters
  The air filter prevents abrasive like dirt from entering the engine's cylinders that would cause engine wear and oil contamination. Most fuel injected cars use a pleated paper filter that looks like a flat panel. This filter is placed inside a plastic box connected to the throttle body between the intake tube. Older vehicles use carburetors or throttle body fuel injection sometimes use a round air filter, usually a few inches high and between 6 and 16 inches round. It is usually located directly over the carburetor or throttle body and secured with a metal or plastic lid.
• Paper
  Pleated paper filters are the preferred choice for automobile engine air filters, because they are efficient, easy to service, and inexpensive. The "paper" , as the filter media are considerably different from other papers.
• Foam
  Oil-wetted foam filters are used in some replacement air filters. Foam was used in air cleaners on small engines and other power equipment, but cars paper filter media has since replaced oil-wetted foam filters. An oil-wetted foam filter can offer minimal airflow restriction or high dirt capture, which makes this type the choice in off-road vehicles and other motorsport that encounter high dust levels.
• Cotton
  Oiled cotton gauze is employed in a small number of aftermarket automotive air filters marketed as high-performance items. In the past, cotton gauze saw limited use in original-equipment automotive air filters.
• Oil Bath
  An oil bath air cleaner is a round base bowl containing a pool of oil, and a round insert which is filled with fibre, mesh, foam, or another coarse filter media. When the cleaner is assembled, the media-containing body of the insert sits a short distance above the surface of the oil pool. The rim of the insert overlaps the rim of the base bowl. This arrangement forms a labyrinthine path through which the air must travel in a series of U-turns: up through the gap between the rims of the insert and the base bowl, down through the gap between the outer wall of the insert and the inner wall of the base bowl, and up through the filter media in the body of the insert. This U-turn takes the air at high velocity across the surface of the oil pool. Larger and heavier dust and dirt particles in the air cannot make the turn due to their inertia, so they fall into the oil and settle to the bottom of the base bowl. Lighter and smaller particles are trapped by the filtration barrier in the insert, which is wetted by oil drops aspirated by normal airflow.
  Oil bath air cleaners were very widely used in automotive and small-engine applications until the widespread industry adoption of the paper filter in the early 1960s. Such cleaners are still used in off-road equipment where very high levels of dust are encountered, for oil bath air cleaners can sequester a great deal of dirt relative to their overall size, without loss of filtration efficacy or airflow. However, the liquid oil makes cleaning and servicing such air cleaners messy and inconvenient, they must be relatively large to avoid excessive restriction at high airflow rates, and they tend to increase exhaust emissions of unburned hydrocarbons due to oil aspiration when used on spark-ignition engines. For more information try using the following labels when surfing the web: buy wix filters wix wix air filter wix cabin air filter wix filters online wix fuel filter wix fuel filters wix oil filters