RU2588302C1 - Oil cleaning filter - Google Patents

Abstract

FIELD: engines.

SUBSTANCE: invention relates to filters of internal combustion engine. Oil cleaning filter, which includes a housing connected with cover and placed inside housing of main filtering element, according to invention additionally comprises bypass filter valve consisting of a convex support with side holes and outer flanging, in which a spring frame with slots for braces parts inside filter and oil passage through it, collar, spring and valve plate installed on central hole of convex support, and filter material located on surface of spring frame and convex side support.

EFFECT: higher reliability of oil purification, manufacturability and operational characteristics.

1 cl, 2 dwg

Description

The invention relates to oil filters, which are equipped with internal combustion engines.

The field of technology is the automotive industry, namely the production of oil filters. It is advisable to use in filters used on internal combustion engines for various purposes, primarily automobile, operated after conveyor assembly, overhaul or in cold weather.

It is known that the oil purification filter is a part for the engine. Due to an imperfect design, it may not fully fulfill its functional purpose - continuous filtering of the oil that passes through it.

The closest in combination of features and technical result to the claimed invention is an oil purification filter (Russian patent No. 2323229, IPC B01D 27/08, F01M 1/10, published in Bull. No. 12 04/27/2008). This decision is made as a prototype. The oil filter contains a cover connected to the housing, inside of which the main filter element, the bypass valve, the spring and the filter element of the bypass valve are placed along the axis.

The presence of connectors between these parts affects the quality of oil filtration due to depressurization of the joints when the engine vibrates or if the spring deviates from the axis during assembly of the filter. This negatively affects the quality of oil cleaning.

The basis of the invention is the technical task to develop an oil purification filter that would preclude the possibility of depressurization of parts, was more technologically advanced during assembly by changing the shape and constructive improvement of the filter element of the bypass valve, spring and bypass valve.

This problem is solved as follows: in the oil filter, which contains a housing connected to the cover, and the main filter element located inside the housing, according to the invention it further comprises a bypass filter valve, consisting of a convex support with side holes and an external flange, in which a spring frame with slots for spacing parts inside the filter and passing through it oil, clips, springs and valve plates mounted on the central hole of the convex support, and filter of material disposed on the surface of the chassis spring and the convex side of the support.

General design features with the prototype:

1. Case.

2. The cover.

3. The main filter element.

Distinctive design features:

4. Bypass filter valve.

5. Convex support.

6. Side holes of the convex support.

7. External flanging.

8. The spring frame.

9. Slots.

10. The clip.

11. The spring.

12. Valve plate.

13. The Central hole of the convex support.

14. The filter material.

The claimed technical result: the reliability of the design of the oil purification filter, high manufacturability in the manufacture and continuous oil filtration during operation.

It is achieved thanks to the multifunctional bypass filter valve. The bypass filter valve consists of a convex support with side holes, with a central hole and an external flange. Inside the outer flange of the convex support, a spring frame is installed around the perimeter, mainly in the form of a shaped disk spring with slots. The convex support with side openings and the spring frame are closed externally with filter material to close the openings. A clip with a valve plate and a spring is connected to the central hole of the convex support. The spring frame installed in the external flange of the convex support provides the three-dimensional shape of the bypass filter valve, as well as the tightness of the connection of parts inside the filter that are constantly spring loaded as a result of assembly of the housing with the cover, mainly by pressing and compressing the spring.

The causal relationship between the proposed solution and the resulting total technical result provides new technical properties that allow, in combination with known features, to obtain a technical result in the task.

According to the information available to the applicant, the proposed set of features characterizing the essence of the invention is unknown from the prior art, is not obvious to specialists in this field of technology, that is, the invention meets the criteria of "novelty" and "inventive step".

The invention is illustrated by an example of its implementation and drawings,

 where in Fig.1 shows a General view of the filter in section;

figure 2 shows a General view of the filter valve in section.

The oil purification filter (Fig. 1) contains a housing 1 connected to the cover 2 and located inside the main filter element 3, which is interfaced with the bypass filter valve 4.

In turn, the filter bypass valve 4 consists of a convex support 5 with side openings 6, a central hole 13 and an external flange 7, in which a spring frame 8 with slots 9 is installed. A clip 10, a spring 11 and a valve plate 12 are connected to the central opening of the convex support 13. In this case, the outer surface of the spring frame and the convex support are covered with filter material 14, mainly a non-woven fabric.

The invention is illustrated by an example of a filter.

The operation of the oil filter is as follows. Oil from the engine oil pump through the inlet openings of the cover 2, which is connected to the housing 1, flows to the main filter element 3.

Passing through the main filter element 3, the oil is cleaned and enters the main line of the engine lubrication system. When the cold engine starts or the main filter element 3 is dirty, the oil begins to pass through the filter material 14, which covers the spring frame 8 with slots 9 and the side surface of the convex support 5 with side holes 6 and the outer flange 7 of the bypass filter valve 4. Then the oil is squeezed a spring 11, on which the valve plate 12 is located in a cage 10 attached to the central hole of the convex support 13, and enters the engine lubrication line.

The proposed technical solution is not obvious to a specialist from the prior art, meets the criteria of novelty, inventive step and industrial applicability.

The set of features that characterize the new solution in the design of the filter, provides the possibility of the claimed technical result and increases the reliability and quality of the filter, as well as its manufacture becomes more technologically advanced.

Claims (1)

An oil filter that contains a housing connected to the cover and a main filter element located inside the housing, characterized in that it further comprises a bypass filter valve, consisting of a convex support with side holes and an external flange, in which a spring frame with slots for spacers is installed filter parts inside the housing and the passage through it of oil, clips, springs and valve plates mounted on the central hole of the convex support, and filter material located on the surface of the spring frame and the side of the convex support.

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