RU171762U1 - Filter element - Google Patents

Abstract

A utility model relates to a filter element of an air filter for purifying air entering an internal combustion engine. 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 carbon filament at a culling depth of h = 1.8-2.6 mm, the third layer is made of polyamide yarn with an eraser of 2 + 2 at a depth of cure h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn with an eraser of 1 + 1, in which broaches of adjacent loops of polyamide yarn are located between the loop columns of the front and back sides. The technical result is to increase the dust-collecting ability 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.

Known located in the housing of the filtering device filter element, streamlined by a filtered fluid, 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 made with the possibility of flow around in a radial direction. A fluid flow chamber is formed between the filter bellows and connected to the end face of the filter element, each filter bellows being a star filter with star-shaped filter folds and at least one end face of the filter element between one of the filter bellows and the housing is located a 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 not the possibility of its regeneration, but, therefore, the short life cycle of the filter element.

A 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, moreover, when viewed in the direction of the fold edges, glue segments and glueless gaps are displaced relative to 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 with loshn passage (patent RU №2548413, IPC B01D 46/52, 20.04.2015).

The disadvantage of the filter element is the complexity of the design, 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.

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 possibility of its regeneration, that is, the short life cycle of the filter element.

A filter element is known for an air filter of a supply unit for supplying air to an internal combustion engine, comprising an annular filter body of folded filter material, two adjacent end folds of which are adjacent to each other in a circumferential direction, the leveling contour and end folds fixed to each other form in a circumferential direction an angle that 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 fixed on the filter material on the axial end side of the filter body, which contains 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 complexity of the design, 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.

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 possibility 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 carbon filament with a culling depth h = l.8-2.6 mm, the third layer is made of polyamide yarn with an eraser 2 + 2 and with a depth of cure h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn with an eraser 1 + 1, in which broaches of adjacent loops of polyamide yarn are located between the looped posts of the front and wrong sides.

As a result of the gradient-increasing density of the filter layers — gradually, from the first to the fourth layer, and the increasing density of the loop structure of the weaves, a more efficient capture of mechanical impurities by each of the filter layers is ensured. In this case, 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 from elastic knitwear, declared by the 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; FIG. Figure 3 shows a graphic record of the weaving of an eraser 1 + 1 with broaches of inextensible filament located between the loop columns.

A filter element comprising a housing in which four filter layers are made of elastic knitwear. The first layer is made of refractory, weaving an eraser 2 + 2 by simultaneously knitting fiberglass 1 (inextensible thread) and polyurethane thread 2 on a flat-type machine of class 6 with a cooler depth h = 2.4-2.8 mm. The second layer is made of refractory, weaving the tubular surface by simultaneously knitting a carbon filament 3 (inextensible filament) and a polyurethane filament on a class 6 flat fang machine with turning off the closing wedges of the locking system with a culling depth 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 interlacing the eraser 1 + 1 by simultaneously knitting the polyamide yarn 4 (inextensible yarn) and polyurethane yarn 2, in which the broaches of adjacent loops of polyamide yarn 4 are located between the looped columns of the front and wrong sides.

Elastic knitwear by weaving an eraser 1 + 1 from simultaneously knitted polyamide 4 and polyurethane yarns 2, in which broaches of adjacent loops of polyamide yarn 4 are located between the looped posts of the front and wrong sides, knitted on a 14-class hosiery. This weave of the 1 + 1 eraser is knitted at the maximum distance between the needle beds, which ensures the formation of enlarged loop broaches from both polyamide and polyurethane threads. After dropping the knitted eraser loops from the needle bar (end of knitting of the buttonhole series), the broaches 5 of the polyurethane thread between the needle bars are reduced, which ensures the formation of additional columns of broaches 6 formed from a polyamide thread. Thus, the loop structure is densified along the width of the weave. The cycle repeats in each loop.

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

The filter element works 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 rough cleaning of air from particles of large and medium sizes. Thus, air is cleaned and the third and fourth layers are protected, both from exposure to high temperatures and from clogging by large particles. 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 a maximum density of the loop structure, which is provided by additional columns of broaches 6 formed from a polyamide thread.

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 stream. 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 an eraser 1 + 1, in By means of an otor, the broaches of adjacent loops of polyamide yarn are located between the hinge posts of the front and the wrong sides, has an increased dust removal capacity and an extended service 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 at a depth of cure of h = 1.6-3.0 mm, and the fourth layer is made of polyamide yarn with an eraser 1 + 1, in which the broaches of adjacent loops are made of polyamide yarn located between the looped columns of the front and back sides.

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