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Video Diesel Engine 1
Video Diesel Engine 2
Video Petrol/Diesel Engine
Video Save Energy
Video Inventor Rudolf Diesel
Video Crosshead Engine
Video Diesel Engine (truck)
Video Work at Truck Engine
Video Combustion Engine
Video Compression Ignition
Video Direct Injection
Video Side Comb. Chamber
Video Diesel Fuel
Video Not running
Video Test diagnostic
Video Injection Nozzle Tests
Video Pump Injectors
Video Particulate Filter
Video Two-stroke Engine
Video Marine engines 1
Video Marine engines 2
Video V-10 Diesel Engine
Video Internal Mixt. Form.
Video Mixture Preparation
Video Supply Pump
Video Diesel injection 2012

Video Common Rail 1
Video Common Rail 2
Video Common Rail 3
Video Common Rail 4
Video Common Rail 5
Video Common Rail 6
Video Common Rail 7
Video Common Rail 8
Video Common Rail 9
Video Common Rail 10

Video Fuel supply 2
Video Fuel supply 3
Video Repair 1
Video Repair 2
Video Repair 3
Video Throttle Pintle Nozzle
Video Hole Type Nozzle
Video Glowing System 1
Video Glowing System 2
Video Glowing System 3
Video Glowing Plug Sensor
Video Hole Type Nozzle
Video Injection Nozzle Tests
Video Injection Pump Test
Video Pump Injectors 1
Video Pump Injectors 2
Video Pump Injectors 3
Video Diesel Fuel Filter 1
Video Diesel Fuel Filter 2
Video Reverse Running
Video Fuel Cooling
Video In-line Inj. Pump
Video Injection Pump
Video In-line Pump (classic)
Video In-line Pump (P-type)
Video In-line Pump (M-type)
Video In-line Pump 4
Video In-line Pump 5
Video In-line Pump 6
Video In-line Pump 7
Video Centrifugal Governor
Video Fuel Piston Pump
Video Electr. Inline Pump
Video Distr. Type Pump 1
Video Distr. Type Pump 2
Video Axial Distr. Pump 1
Video Axial Distr. Pump 2
Video Axial Distr. Pump 3
Video Axial Distr. Pump 4
Video Axial Distr. Pump 5
Video Radial Distr. Pump 1
Video Radial Distr. Pump 2
Video Radial Distr. Pump 3
Video Electr. Diesel Control
Video Centrifugal Governor
Video Press. Red. Valve
Video Blocking-vane Pump
Video Fuel Filter - Hand Pump
Video Diesel Fuel
Video Fuel Preheating

Video Diesel Processes 1
Video Diesel Processes 2
Video Diesel Processes 3
Video Diesel Processes 4
Video Diesel Injection 1
Video Diesel Injection 2
Video In-line Injection Pump
Video Distributor Pump 1
Video Distributor Pump 2

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Diesel Fuel Filter


The fuel filter does the job of removing any possible impurities from the fuel which could damage the fuel injection system or impair the flawless operation of the engine. Included in this, are not only solid foreign matter, but also, e.g., air and water. It should do this under the aspect of maximum environmental protection, that means, that the filters should have to be changed as seldom as possible to reduce the amount of refuse.

The above pictures show the latest development, at least at the moment, on the way to the fuel filter management. The replacement intervals are slowly approaching the one hundred thousand kilometer mark. The element to be exchanged is no longer a cartridge with a metal casing anymore. Nowadays, the lid is unscrewed, and a metal-free, easilier recycleable cartridge is exchanged.

Limit of filterability: Cold Filter Plugging Point


Two filter elements are used - for a passenger car seldom enough - parallel to each other. The filter elements to be exchanged no longer consist only of one filter layer, but several, also the single layers, in a star-shaped arrangement, from the outside inwards (air-flow direction), have become increasingly denser. Layers with a construction similar to synthetics (fiber glass) are also possible. These materials are capable, in the meantime, of trapping even the smallest of particles measuring no more than 5 micrometers (0,005 mm). The water separation has also been improved. From this we can see that all the newer injection systems, (Common Rail, Pump-nozzle) make higher demands on the filter system than former diesel engines.

The large amount of visible fuel-pipes arises from the various transport cycles of the diesel fuel. When the engine is cold, the not injected fuel is returned (at higher pumping pressure) directly to the filter and maintains a certain temperature to avoid the removal of paraffin and with it, an interruption of the supply. Vehicles with a filter-inflow heating are well protected against very cold winter conditions. With engines running at operation-temperature, an additional cooling on the way to the tank, is possible. 07/06

If it is the highest component of the diesel injection system, is here vented automatically.

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2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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