RU2289467C1 - Combined filtering component of the oil filter - Google Patents

Abstract

FIELD: petrochemical industry; production of the combined filtering components for the oil filters.

SUBSTANCE: the invention is intended for purification of the oil and may be used in production of the oil filters of the combustion engines, the air engines, the different hydraulic systems. The filtering component consists of two filter-elements connected to each other by their butts with the various types of the filtering blinds and is arranged in the body of the filter having one hole for the oil withdrawal and may be equipped with the bypass valve depending on the design of the filter. The first filter-element is the full-flow filter and consists out of the central perforated pipe, the upper and the lower butt caps, between which there is the paper filtering blind laid as the spider. The second filter-element is the partially full-flow filter and consists of the central tube with the grooves on its outer side or of the central perforated pipe with the spooled on it with variable strength layer by layer synthetic texturized thread forming the volumetric-capillary filtering blind. The technical result of the invention is the decreased fineness of screening, the increased filter contaminant capacity, duration of the oil operation life and the filter itself, reduction of the abrasive wear of the rubbing details, the increased operational life of the combustion engines.

EFFECT: the invention ensures the decreased fineness of screening, the increased filter contaminant capacity, duration of the oil operation life and the filter itself, reduction of the abrasive wear of the rubbing details, the increased operational life of the combustion engines.

4 cl, 5 dwg

Description

The invention relates to the field of engine building and can be used in oil filters of internal combustion engines, compressors, various kinds of hydraulic systems.

Known full-flow filter element (JSC "Auto Unit"), containing a frame made in the form of a perforated central pipe, upper and lower end caps with central holes, between which a paper filter curtain is installed, laid in the form of a multi-pointed star.

The disadvantages of the analogue are: a relatively high screening fineness, low dirt holding capacity and, as a rule, a short service life (about 10,000 km) due to the failure of a paper filter curtain due to contamination.

Partially in-line filtering element is known, made of a central pipe with channels on the outside (a.s. No. 2113268) or a central perforated pipe (TU 08.08. - 93, NTF "INPROKOM", l.9), with a thread wound on it, forming a volumetric filtering curtain, covers with central holes connected to the ends of the core, and filtering curtains. The disadvantage of the prototype is the increased hydraulic resistance of the filter curtains, which eliminates the possibility of the filter element in full-flow filtration mode.

The claimed solution poses the task of creating a filter element having a low fineness of screening of mechanical particles, increased dirt capacity, extended service life.

This object is achieved in that the filter element consists of two filter elements connected by the ends (FIG. 2) with different types of filter curtains, located in the filter housing (FIG. 1), having one oil outlet or in a different housing design, can be equipped with a bypass valve depending on the design of the filter, in which it is used both in collapsible and non-collapsible form.

The task is also achieved by the fact that the 1st full-flow filter element is made of a central perforated pipe, upper and lower end caps with central holes, between which a paper filter curtain is installed, laid in the form of a multi-pointed star.

The task is also achieved by the fact that the 2nd filter element is partly made of a central pipe with channels on the outside or a central pipe with channels that includes a top cover as a unit or a central perforated pipe with a synthetic layer wound around it with a variable tension textured thread forming a volume-capillary filtering curtain, covers with central holes connected to the ends of the core and filtering curtains.

The invention is illustrated by drawings, where figure 1 shows one of the applications of the combined filter element in the composition of the filter for cleaning oil non-separable type (general view, section);

figure 2 shows the combined filter element assembly with a partially flow element containing a Central pipe with channels on the outside and two covers (General view, section);

figure 3 shows the combined filter element assembly, with a partially in-line element containing a central pipe with channels, including the top cover as a single unit and the bottom cover as a separate part (general view, section);

figure 4 shows the design of a full-flow filter element with a paper curtain (section AA);

figure 5 shows the construction of a partially in-line filter element with a volume-capillary filter curtain (section BB).

The oil purification filter contains a rubber seal 1, a reinforcing plate 2, a body cover 3, a rubber anti-drain valve 4, a stamped anti-drain valve 5 spring, a coiled spring 6, a lower cover partly in-line filter element 7, a volumetric capillary filter curtain 8, a central pipe with channels partially in-line filter element 9, upper cover for partially in-line filter element 10, lower cover for full-flow filter element 11, paper filter curtain 12, perforated central pipe of full-flow filter filter element 13, filter housing 14, bypass valve housing 15, bypass valve 16 spring, bypass valve 17, top cover of a full-flow filter element 18, twisted installation spring 19.

The filtering element of this design as part of a non-separable filter (figure 1) works as follows.

Oil from the engine pump through the openings of the cover 3, having a sealing gasket 1 for sealing the connection of the cover with the engine block, squeezing the anti-drain valve 4, enters the filter between the inner wall of the housing 14 and the outer surface of the combined filter element. When the engine is cold (at the time of start-up), the oil, having a high viscosity, passes partly through the paper filter curtain 12 of the combined filter element, partly through the bypass valve 17 and then to the main engine line. In this case, the volumetric filtering curtain 8 is not involved in the operation, since its high hydraulic resistance does not allow this. During operation, the oil is heated, its viscosity decreases so that the bypass valve 17 closes, most of the oil passes through the paper curtain 12, the remaining part passes through the volume-capillary filter curtain 8, which provides a significantly lower screening fineness than the paper curtain and high dirt capacity or the ability to trap filtered particles inside the curtain, which eliminates their washing off and re-entry into the system, and also facilitates the operation of the paper curtain.

The proposed combined filter element of the oil filter combines two types of filter curtains with different technical characteristics, which contributes to a significant reduction in the fineness of screening, increased dirt capacity, increased life of the oil and the filter itself, reduced abrasive wear of rubbing parts, and increased engine life.

Claims (4)

1. A combined filter element, characterized in that it contains a full-flow and partial-flow filter elements with various types of filter curtains, while a full-flow filter element contains a central perforated tube, upper and lower end caps, between which a paper filter curtain installed by a star is installed, and a partial-flow filter contains a central pipe with a variable-tension synthetic textured thread wound around it with variable tension, forming a volume-capillary th shade, the upper and lower caps connected to the ends of the tube and the curtains, wherein the cover provided with a central through-hole, and the filter elements are interconnected with a common end cap holes for oil yield. 2. The combined filter element according to claim 1, characterized in that the central pipe of the partially flow filter element is made with channels on the outside. 3. The combined filter element according to any one of paragraphs.1 and 2, characterized in that the upper cover of the partial-flow filter element is made in one piece with the Central pipe. 4. The combined filter element according to claim 1, characterized in that the central pipe of the partially flow filter element is perforated.

Images