RU171027U1 - Filter element - Google Patents

Abstract

The invention relates to a filter element of an air filter designed to purify air entering an internal combustion engine. The technical result is achieved by using a filter element comprising a housing in which four filter layers are placed, of which the first and second layers are refractory, and the first layer made of fiberglass, with all four filter layers made of elastic knitwear obtained by simultaneously knitting inextensible nit and polyurethane yarn, the first layer being made by weaving an eraser 2 + 2 with a culling depth h = 2.4-2.8 mm, the second layer is made by weaving a tubular surface of carbon filament with a depth of curing h = 1.8-2.6 mm, the third layer is made of polyamide yarn by weaving an eraser 2 + 2 at a depth of culling h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn by combining alternating rows of eraser 2 + 2 and smooth at a depth of curing h = 1.4-2.8 mm and a tension of polyurethane yarn 2.9-3.2 N and polyamide yarn 0.8-1.6 N. Technical result Ohm is to increase the dust removal capacity of the filter element and increase the service life of the filter element.

Description

A utility model relates to a filter element of an air filter for purifying air entering an internal combustion engine.

A filter element streamlined in a filtering device streamlined in a filtering device body is made in the form of a multi-bellows filter with at least two filter bellows radially inserted into each other, of which at least one filter bellows is capable of flowing in the radial direction. A fluid flow chamber is formed between the filter bellows and communicates with the end face of the filter element, each filter bellows made in the form of a star filter with star-shaped filter folds, and at least one end side of the filter element between one of the filter bellows and the housing the seal by which the filter element is sealed from the housing (patent RU No. 2491113, IPC B01D 46/00, 08/27/2013).

The disadvantage of the filter element is the inability to withstand the short-term effects of an open flame, sparks and high temperatures, as well as the inability to regenerate it, and therefore the short life cycle of the filter element.

Known filter element in a filter for filtering fluids, having a zigzag folded filter medium with a dirty side and a clean side with elongated adhesive segments and glueless tears located on them, and when viewed in the direction of the fold ribs, adhesive segments and glueless gaps are displaced relative to each other each other so that through glueless gaps in one fragment of the medium that passes between two adjacent edges of the folds, parallel to the edges of the folds is not created elk passage (patent RU No. 2548413, IPC B01D 46/52, 04/20/2015).

The disadvantage of the filter element is the design complexity, inability to withstand the short-term effects of an open flame, sparks and high temperatures, as well as the inability to regenerate it, that is, the short life cycle of the filter element.

Known filter element of the air cleaner of the internal combustion engine, having the form of a parallelepiped, at the base of which is a square containing filter material, bent in the form of a corrugated tape having kink lines (patent RU No. 2117180, IPC F02M 35/02, B01D 46/52, 10.08. 1998).

The disadvantage of the filter element is the inability to withstand the short-term effects of an open flame, sparks and high temperatures, as well as the inability to regenerate it, that is, the short life cycle of the filter element.

A filter element for an air filter of a supply air supply unit of an internal combustion engine is known, comprising an annular filter body of folded filter material, two adjacent end folds of which are adjacent to each other in the circumferential direction, the leveling contour and end folds attached to each other form an angle in the circumferential direction which corresponds to a given angle or is located in a given angular range whose boundaries are separated by a maximum of 20 °, 15 ° or 10 ° ( RU patent No. 2553301, IPC B01D 46/52, 06/10/2015). The end folds are secured to each other by at least one clamp, in particular, it can be provided that the corresponding clamp consists of metal, in particular of magnetically detectable metal, or it contains an element of metal, in particular of magnetically detectable metal . At least one end disk is attached to the filter material on the axial end side of the filter body, which comprises at least one leveling contour protruding from the corresponding end disk in the radial and / or axial direction.

The disadvantage of the filter element is the design complexity, inability to withstand the short-term effects of an open flame, sparks and high temperatures, as well as the inability to regenerate it, that is, the short life cycle of the filter element.

The closest is a filter element containing a housing in which four filter layers are placed, of which the first layer is made of refractory fiberglass and provides the function of rough preliminary air purification; the second layer is impregnated with a refractory solution and made of basalt fiber with the ability to capture large particles; the third and fourth layers are made of synthetic material made by melt-blown technology, or of a material made by spraying polyamide or polypropylene, the third layer is made with the possibility of collecting particles of medium size; the fourth layer is configured to capture small particles (patent RU No. 76821, IPC B01D 46/00, 10/10/2008).

The disadvantage of the filter element is the low cleaning efficiency of the air mixture, as well as the impossibility of its regeneration, that is, the short life cycle of the filter element.

The purpose of the utility model is to create a highly efficient filter element.

The technical result is to increase the dust-collecting ability of the filter element and increase the service life of the filter element.

The technical result is achieved by using a filter element containing a housing in which four filter layers are placed, of which the first and second layers are refractory, and the first layer is made of fiberglass, while all four filter layers are made of elastic knitwear obtained by simultaneously knitting inextensible yarns and polyurethane yarns, with the first layer made by interlacing an eraser 2 + 2 with a cooler depth h = 2.4-2.8 mm, the second layer is made by interlacing tubular g ad from coal yarn at a depth of cure of h = 1.8-2.6 mm, the third layer is made of polyamide yarn with an eraser 2 + 2 weaving at a depth of cure of h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn with a combined weave of alternating rows of an eraser 2 + 2 and smooth with a culling depth of h = 1.4-2.8 mm and a tension of polyurethane yarn 2.9-3.2 N and a polyamide yarn 0.8-1.6 N.

As a result of a gradient-increasing density of the filter layers — gradually, from the first to the fourth layer, and increasing density of the loop structure of the weaves — a more efficient capture of mechanical impurities by each of the filter layers is provided. At the same time, the first two layers not only serve as dust collectors, but also protect the third and fourth layers from clogging, performing the functions of a prefilter in relation to them, and also allow you to withstand short-term effects of an open flame, sparks and high temperatures.

In addition, the implementation of the filter layers of elastic knitwear with the declared weaves allows the regeneration of each filter layer, which increases the productivity of the filtering process and increases the degree of air purification, and also increases the life cycle of the filter element.

In FIG. 1 is a graphical representation of the weave of the eraser 2 + 2, in FIG. 2 is a graphical representation of the interweaving of the tubular surface.

The filter element contains a housing in which four filter layers are made of elastic knitwear.

The first layer is made of refractory weaving with an eraser 2 + 2 by simultaneously knitting fiberglass 1 (inextensible thread) and polyurethane thread 2 on a class 6 flat fang machine with a cooler depth h = 2.4-2.8 mm.

The second layer is made of refractory interlacing of the tubular surface by simultaneously knitting charcoal filament 3 (inextensible filament) and polyurethane filament 2 on a class 6 flat fang machine with turning off the enclosing wedges of the locking system with a culling depth of h = 1.8-2.6 mm.

The third layer was made by weaving an eraser 2 + 2 by simultaneously knitting a polyamide yarn (inextensible yarn) and a polyurethane yarn on a class 6 flat vane machine with a culling depth at a culling depth h = 1.6-3.0 mm.

The fourth layer is made by combining alternating rows of eraser 2 + 2 and rows of iron by simultaneously knitting a polyamide yarn (inextensible yarn) and polyurethane yarn 2 on a flat-woven machine of class 6 with a cooler depth of h = 1.4-2.8 mm and a polyurethane yarn tension of 2.9-3.2 N and polyamide yarn 0.8-1.6 N. The combined weave provides an extremely dense seal of the loop structure of the knitwear.

Finished knitted products are placed in the housing of the filter element in the form of folded filter layers.

The filter element operates as follows.

The first and second filter layers are protective. They are made of materials that can not be burned or melted at short-term high temperatures, due to which they protect the filter element from sparks and short-term exposure to flame, which can enter the air filter housing through the air intake when the pressure is low on a running engine. In this case, the filter layers provide preliminary air purification from particles of large and medium sizes. Thus, coarse air cleaning and protection of the third and fourth layers both from exposure to high temperatures and from clogging by large particles occur. The third layer is designed to clean the air mixture from particles of medium and small size. The fourth layer is designed to clean the air mixture from small particles. This layer is the finish and has the maximum density of the loop structure, which is ensured by the alternation of weaves.

The life cycle of the filter element, determined by the timing of clogging of its layers, increases due to the possibility of regeneration of all layers of the filter element. The knitted design of the layers in accordance with the indicated weaves allows each layer to be regenerated when it is stretched and back-blown. It is also possible to backwash them with a water jet. Thus, the service life of the filter element and its dirt capacity are increased.

The proposed filter element, due to its multilayer design, can operate in highly dusty conditions, where conventional filters almost immediately fail. High-quality cleaning starts from the first minutes of operation of the filter element. This is especially important when using an air filter in machines designed to operate in emergency situations or harsh field conditions.

Thus, a filter element containing four filter layers made of elastic knitwear obtained by simultaneously knitting an inextensible thread and a polyurethane thread, in which the first layer is made by weaving an eraser 2 + 2 using fiberglass, the second layer is made by weaving a tubular surface using carbon fiber , the third layer is made using polyamide yarn with an eraser 2 + 2, and the fourth layer is made using polyamide yarn with a combined binding iem alternating rows eraser 2 + 2, and smooth surface, has a high dust collecting ability and longer life.

Claims (1)

A filter element comprising a housing in which four filter layers are placed, of which the first and second layers are made of refractory, and the first layer is made of fiberglass, characterized in that all four filter layers are made of elastic knitwear obtained by simultaneously knitting an inextensible thread and polyurethane threads, and the first layer is made by interlacing an eraser 2 + 2 with a cooler depth h = 2.4-2.8 mm, the second layer is made by interlacing a tubular smooth surface of a carbon thread with a cooler depth I h = 1.8-2.6 mm, the third layer is made of polyamide yarn with an eraser 2 + 2 weaving with a depth of curing h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn with a combined weave of alternating rows of an eraser 2 + 2 and smooth at a depth of curable h = 1.4-2.8 mm and a tension of polyurethane yarn 2.9-3.2 N and a polyamide yarn 0.8-1.6 N.

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