Skip to main content

Structure and function of fuel filter

 

The structure and function of fuel filter

The structure of the fuel burner is composed of an aluminum shell and a stainless steel bracket. The bracket is equipped with a high-efficiency filter paper assembly. The filter paper is seen as a chrysanthemum to increase the flow area. The EFI filter cannot be combined with the carburetor. The filter is universal. Because the EFI filter often bears the fuel pressure of 200～300kPa. Therefore, the pressure strength of the filter is generally required to reach more than 500kPa, and the filter of the carburetor cannot meet the requirements.

The function of the fuel filter is to remove the iron oxide, dust and other solid impurities contained in the fuel, prevent the fuel system from clogging, reduce mechanical wear, ensure stable engine operation, and improve reliability.

Fuel filter replacement instructions

The fuel filter must be replaced every 30,000 kilometers. If the fuel impurity content is large, the driving distance should be shortened accordingly. The arrow on the fuel filter housing indicates the direction of fuel flow. When installing the fuel filter, it is not allowed to install it upside down. Even if it works in the flip-chip state for a short time, it must be replaced.

The recommended replacement cycle of automobile fuel filters should vary according to their own structure, performance and purpose, and cannot be generalized. If the filter is installed in the fuel line, it is called an external filter (external); conversely, the internal filter (internal) refers to the filter installed inside the fuel pump and fuel tank. Among them, the fuel tank filter or its protective sleeve is generally considered to be a maintenance-free component.

Many imported cars use banjofittings for fuel filters. In order to ensure the reliability of the connection and sealing, the same gasket must not be used repeatedly. In addition, even if a brand-new gasket is used, the tightness of the connection must be checked. When the fuel system needs to replace the o-ring, it is necessary to ensure that the specifications and models of the o-ring are correct, and to check whether the elasticity and hardness of the ring are appropriate.

The fuel system without loop has only one internal filter (in the fuel tank). Although this all-in-one pump, filter, and delivery unit are expensive, when the fuel delivery is blocked or When the performance of the engine decreases due to this, proper maintenance and maintenance must be carried out in time. At the same time, it is necessary to check all the faults in the fuel line and the rupture and curling of the hose clamp.

Most car manufacturers recommend a replacement period of 48,000 km for normal maintenance of their external filters; the recommended replacement period for conservative car repair and maintenance is 192,000 to 24,000 km. If you are in doubt, please refer to the owner's manual to find the correct one. Recommended replacement cycle. In addition, when the filter hose has aging or cracks caused by dirt, oil and other dirt, the hose needs to be replaced in time.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

Link to this article：Structure and function of fuel filter

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.：Cnc Machining，Thank

Comments

Post a Comment

Popular posts from this blog

The Influence of CNC Turning and Milling Machining on Turning Efficiency

The cutting efficiency of CNC lathes will be affected by human factors, environmental factors and the machine tool itself. Let's talk about the influence of cutting amount and cutting tools on CNC lathe processing among many factors.   Reasonable cutting amount can improve the efficiency of CNC lathe. When the   laser  cutting  speed is increased by 10 times and the feed rate is increased by 20 times, far beyond the traditional cutting forbidden zone, the cutting mechanism has undergone a fundamental change.   The result of CNC turning  and milling combined processing is: the metal removal rate per unit power is increased by 30% to 40%, the cutting force is reduced by 30%, the cutting life of the tool is increased by 70%, and the cutting left on the workpiece is greatly reduced. Heat, cutting vibration almost disappeared; cutting processing has taken an essential leap. According to the current situation of CNC lathes, increase the feed per tooth, improve pr...
1 comment
Read more

What are the characteristics of the CNC turning process?

What are the characteristics of the CNC turning process? Turning is a method of cutting the workpiece on the lathe by rotating the workpiece relative to the tool. Turning is the most basic and common cutting processing method. Most workpieces with revolving surfaces can be processed by turning methods, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end surfaces, grooves, threads, and rotary forming surfaces. Common lathes can be divided into horizontal lathes, floor lathes, vertical lathes, turret lathes and profiling lathes, and most of them are horizontal lathes.
1 comment
Read more

Machining and welding process notes for TC4 titanium alloy parts

Common welding methods for titanium and titanium alloys are as follows: Argon arc welding, submerged arc welding, vacuum electron beam welding, etc. Tungsten argon arc welding is used for thicknesses of 3 mm or less, and argon arc welding is done for 3 mm or more. The purity of argon is over 99.99%, and the content of air and water vapor in argon is strictly controlled. Currently, for TC4 titanium alloys, argon arc welding, plasma arc welding are often used for welding, but both methods need to be filled with welding material. Limitations on shield gas, purity and effectiveness increase the oxygen content of the joint, reduce its strength and increase its post-weld deformation. Electron beam welding and laser beam welding are used. The following is a description of precision welding and precautions for TC4 titanium alloy. 1. Weld hole problem Table of Contents 1. Weld hole problem 2, internal quality of welded part 3. Weld depth and its variation 4, j...
Post a Comment
Read more