Diesel fuel filter with a filter, fuel filter and a gas filter categories. Its role is to filter out harmful particles and water gas engine fuel system to protect the oil pump and nozzle, liner, piston rings, to reduce wear, to avoid clogging.
1. The fuel filter is substantially description
Diesel fuel filter with a filter, fuel filter and a gas filter categories. Its role is to filter out harmful particles and water gas engine fuel system to protect the oil pump and nozzle, liner, piston rings, to reduce wear, to avoid clogging.
FUEL FILTER
Structure
is substantially the same as the diesel filter oil filter there may be replaceable and spin two. But its job stress and oil temperature requirement is much lower than the oil filter, but its filtering efficiency requirements are much higher than the oil filter. Multi diesel filter cartridge filter paper, there is also a felt or a polymer material.
can be divided into a diesel fuel filter water separator, a diesel fine filter.Oil-water separator is an important function of separation of water in the diesel. The presence of water supply system for diesel engines extremely harmful, rust, wear, stuck or even worsen the diesel combustion process. Due to the high sulfur content diesel China, when combustion occurs, and even water will react to form sulfuric acid corrosion of engine parts. In addition to conventional water precipitation is the main mode, through the funnel structure. State of the above three engine emissions and higher requirements for water separation, high demands require the use of high-performance filter medium. Diesel fine filter is used to filter diesel fine particles, mainly in a diesel engine exhaust is above the third year for 3-5 micron particle filtration efficiency.
There is currently a high-performance diesel fuel filter (State satisfies the above three electrically controlled diesel engine emission requirements), and diesel fuel water separator comprising a fine filter, substantially monopolized by foreign companies, such as Bosch (the BOSCH), Hu Mann (Mann-Hummel), Parker (Parker), Fleetguard (Fleetgurad), the domestic national brands are: Da Feite (DIFITE).
Fuel Filter
carburetor type fuel filter and EFI points, gasoline engine carburetor, fuel filter located at the inlet side of oil pump, the working pressure is small, typically nylon shell, EFI engine fuel filter on the outlet side of the fuel pump, the higher working pressure, typically metal casing. Multi fuel filter cartridge filter paper, there are used nylon, polymer material.
Since the fuel filter in different ways combustion gasoline engine and a diesel engine, diesel filter is better overall requirements demanding, so cheap.
2. Replace the fuel filter technique
Structure
Common fuel filter:
Below is a configuration diagram of an ordinary straight-through direct fuel filter, fuel filter by It will pass through the filter when the filter paper, the filter paper is adsorbed debris at this time in order to achieve filtering.
we can see that taken fuel filter which is a circular structure with wrinkles, yellow is the above-mentioned paper. Cut open an old fuel filter will see the yellow paper turns black, above many sticky substances.
Here are the three common fuel filter. They are: straight-through ordinary straight (left), with a return line (middle), integrated in the pump assembly (right). (An enlarged view of the click)
