SU1369756A1 - Oil cleaning filter - Google Patents

Abstract

The invention relates to the field of filtration, in particular, to the design of detachable filters for cleaning oil of internal combustion engines. The purpose of the invention is to increase the operational reliability and manufacturability of the filter. The filter includes a housing 1, a lid 2, a mechanical expansion seal 4, a filter element 5, overflow and anti-drain valves 21 and 8. A distinctive feature of the filter is that it is equipped with a supplementary profiled septum 1 2 separating the unloading cavity 16 from the crude oil 6 , hydraulically communicated with the inlet cavity 9 of the filter, and at the bent ends of the partition 12, the lock of the mechanical expansion seal 4 and the seat 11 of the drainage valve 8 are completed. 1 il. c (o

Description

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The invention relates to filtering, in particular, to the design of oil purification filters for internal combustion engines, and can be used in the automotive industry.

The aim of the invention is to increase the operational reliability and manufacturability of the filter.

 The drawing shows the filter, prod, solo section.

The filter includes a housing 1, a lid 2 connected by a thread 3 with an end seal 4, a filter element 5 separating the cavities 6 and 7 of the crude oil and filtrate, a drain valve 8 between the inlet cavity 9 and the cavity of the crude oil 6, filled in the form of an elastic membrane 10 in contact with a rigid saddle 11.

The filter is provided with a contoured profiled annular partition 12 supported by the middle end surface 13 on the plane 14 of the cover 2, the outer bent edge 15 of the partition 12 separates from the cavity of crude oil 6 a peripheral annular discharge cavity 16 hydraulically connected with the inlet cavity 9 of the filter channel 17, while outer bent edge in contact with the pack

4, the end surface 18 of the housing 10, the inner cylindrical surface 19 of the roof 2, form a lock of the mechanical expansion seal, and the inner bent edge 20 of the partition 12 is made in the form of a seat 11 of the anti-drain valve 8 and contacts the elastic membrane 10. In the upper part of the filter element 5, a bypass valve 21 is installed.

When the engine is running, the oil enters through the openings 22 into the inlet cavity 9 of the filter and through the channels 17 into the unloading cavity 16. Overcoming the resistance of the membrane 10, the oil enters the cavity of the crude oil 6 and through the filter element 5 into

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filtrate cavity and further to consumers.

Since the oil pressure in the cavity 16 is slightly insignificant, but still more than the oil pressure in cavity 6 due to the hydraulic resistance of the anti-drain valve 8, when the engine is running and the oil pressure in the filter cavities appears, the mechanical expansion seal 4 self-seals and more than more oil pressure. Making the seal lock 4 and the seat 11 of the anti-drain valve 8 separate from the filter body parts 1 and 2 in the partition wall 12 allows the use of high-performance techniques and manufacturing processes, simplifies the design of the filter.

Claims (1)

The invention makes it possible to increase the operational reliability of the filter and the manufacturability of its manufacture. Invention Formula Q five 0 five 0 An oil purification filter comprising a housing, a lid, a mechanical expansion seal, a filter element separating the cavities of the crude oil and filtrate, an overflow and anti-slip valve, the latter of which is made in the form of an elastic membrane, characterized in that manufacturability, it is equipped with a profiled annular septum installed in the cavity of the unpurified liquid in front of the drain valve, which separates the discharge liquid from the cavity of the unpurified liquid , Its inner annular baffle bent part is contacted with the membrane, a convex middle part supported on the cover plane, and a folded outer edge contacts the inner cylindrical surface of the cover, an expansion socket seal and the end part of the housing, oOrachu Tamoko seal. W i / 5 rff J 6