A diesel engine requires that fuel injection components be supplied with clean fuel at the right temperature and pressure, and which is free from air and water. Diesel Fuel Quality and Function
When engines are delivered without protection all hot surfaces must be protected if it, after being built into the respective applications, is necessary for personal safety. Because of the high temperatures that occur in dry exhaust pipes around 500 – 600 °C (850 – 1030 °F) it is sometimes necessary to insulate them. In this way the temperature in the engine compartment can be kept low and burn injuries through contact can be avoided.
These silencers work according to the principal of absorbing sound with the aid of an absorbent lining inside the silencer. They usually provide silencing over a broad frequency range. They are generally of straight-through construction and only offer a marginally higher back pressure than a straight pipe of the same length.
Air filters are usually divided into three filtration categories. The choice of filter type depends on the area of application, dust concentrations where it will operate and required service life. The three filtration categories are shown below together with information about their use. Note that these guidelines are only recommendations and that it may be necessary in certain situations to use a filter suited to conditions dustier than those specified.
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