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Displacement refers to the volume of gas sucked or discharged per stroke of the piston. The gas volume produced by the piston moving from the highest point to the lowest point becomes the cylinder displacement; if the engine has several cylinders, the sum of the gas volumes of all cylinders becomes the engine displacement. It is generally expressed in liters (L). Engine displacement is one of the most important structural parameters. It can represent the size of the engine more than the cylinder diameter and the number of cylinders. Many of the engine’s indicators are closely related to the…

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  In the past few years, the function of the air conditioning filter element was only to filter impurities and dust, protect the evaporator, and absorb peculiar smell by hand. Interestingly, at that time, most car owners thought that prolonging the cycle of replacing the air conditioning filter element and air filter could reduce the cost of using a car. One sentence they often heard in 4S stores or repair shops was that you help me blow with an air gun, and I’ll replace it next time. However, with more and more new materials applied to the automotive field,…

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The gasoline filter of a gasoline engine is located on the outlet side of the fuel transfer pump, and the working pressure is relatively high, and a metal casing is usually used. The filter element of the gasoline filter mostly uses filter paper, and there are also gasoline filters that use nylon cloth and polymer materials. The main function of the gasoline filter is to filter out impurities in the gasoline.     The function of the fuel filter is to prevent particulate matter, water and impurities in the fuel, and to ensure that the precision parts of the…

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  Door and window sealing strip is a kind of sealing part mainly suitable for building decorative doors and windows such as plastic steel doors and windows, aluminum alloy doors and windows, wooden doors and windows. The plastic steel door and window sealing strips on the market are generally extruded from PVC, modified PVC, EPDM, elastomer sealing strips (including TPV, TPE, TPR, SEBS) and silicone. Door and window sealing strips are divided into glass sealing strips (rubber sealing strips), door leaf sealing strips and wool sealing strips. The glass sealing strip is used for the sealing between the glass…

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  When many car owners and friends go to the 4S shop for maintenance, they may have heard the terms of air filter, machine filter, steam filter, and air conditioning filter from the reception staff and maintenance technicians, but the names are very similar, and they all have Each has different maintenance periods and features, and the prices are also different, so it is often easy to confuse them and make the difference unclear.     1. Machine filter (full name oil filter) The machine filter is mainly composed of filter paper, sealing ring, backflow suppression valve, overflow valve…

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  The raw material of the silicone tube is silicone rubber, which is a product made of silicone rubber after a certain process and in accordance with professional requirements. Its appearance is generally translucent, with black, red, white and other colors, which can withstand high temperatures and low temperatures. It is a new type of polymer material, which is not easy to deform under strong pressure and has strong plasticity. There are many aspects to the use of silicone tube, let’s take a look at it in detail below.     1. The use of transportation occupations In the…

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