Detachable and separable filter element

Abstract

A detachable analytic filter core contains upper and lower end cap, inside and outside filter screen and folding filter paper in the filter screen interlayer. A locating slot with several screws inside is set on inner wall around through hole of the upper and lower end cap. Two ports of the inside and outside filter screen has ring locating skirt border extending on radial. It has fixed pore matching the screw on the locating slot of the end cap. Paper ring plates are set on both ends of folding filter paper. The paper ring plates have through holes in the center and its internal and external diameters are larger than that of ring filter paper. The inside and outside filter screen in this invention connects with the upper and lower end cap through screws, which makes the corresponding elements detachable and analytic. When changing the filter paper, spiral out screws on the upper and lower end cap, pulls out the inside and outside filter screen from the locating slot and detach. It realizes filter paper changing by single divided body and resolves the difficulty integrated changing.

Description

technical field [0001] The invention relates to a filter element installed inside a filter, more specifically a paper filter element belonging to a filter, for example, a paper filter element installed in a coarse filter of a fuel system of a diesel engine. Background technique [0002] The purpose of installing a diesel filter in the fuel system of a diesel engine is to remove the impurities and moisture mixed in it before the diesel oil enters the fuel injection pump, so as to reduce the wear and corrosion of the precision coupling parts of the fuel injection pump and the fuel injector, and ensure the normal operation of the diesel engine. . The structure of the existing paper filter element is usually composed of three parts: upper and lower end caps, inner and outer filter screens (some without outer filter screens) and folded annular filter paper. The upper and lower end caps have the same structure and are bottle cap-shaped. There are through holes, and the inner and ...

AI Technical Summary

Problems solved by technology

[0003] The problem existing in the existing filter element is: the upper and lower end caps, the inner and outer filter screens and the filter paper are delivered as a whole, and the filter paper is fixed and glued on the inner cover surface of the upper and lower end caps at one time. The entire filter element including the upper and lower end caps, inner and outer filter nets can be discarded, and the filter element can be replaced again. In addition, the filter paper is a fragile material, and its service life is generally only about 30 days. Therefore, frequent integral replacement of the filter element is not only Waste of resources will also increase the cost of vehicle operation, especially in order to save vehicle operating costs, some drivers often lag behind in replacing the filter element, and the clogged filter will easily cause damage to related components, and even affect the normal and safe driving of the vehicle in severe cases

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