CN111911265A

CN111911265A - Self-cleaning oil filter for automobile

Info

Publication number: CN111911265A
Application number: CN202010654605.8A
Authority: CN
Inventors: 杨香兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-11-10

Abstract

The invention relates to the technical field of engine oil filtering equipment and discloses an automobile self-cleaning engine oil filter which comprises a shell, wherein the upper part of the shell is fixedly connected with an upper cover plate, and the middle part of the upper cover plate is provided with an oil outlet. Through outer sleeve and drive arrangement's setting, when filter internal pressure increases, the permanent magnet subassembly drives the outer sleeve and deflects in step, separate filter paper and unfiltered machine oil, open the below passageway simultaneously, unfiltered machine oil passes through and gets into in the center tube from the below this moment, partly machine oil gets into the engine and continues the work, in order to reach the effect of protection engine, another part machine oil is reverse to pass through filter paper, wash the impurity of filter paper outside accumulation, and get rid of through the blow off pipe of storing up miscellaneous chamber bottom, not only the ferromagnetic impurity in the machine oil of effective filtering, and can carry out the back flush to filter paper, prevent the too much impurity of filter paper surface accumulation, the life of extension filter paper is got simultaneously with the inside impurity discharge of this oil cleaner.

Description

Self-cleaning oil filter for automobile

Technical Field

The invention relates to the technical field of engine oil filtering equipment, in particular to a self-cleaning engine oil filter for an automobile.

Background

Oil cleaner, also known as machine oil check for impurity such as dust, metal particle, carbon deposit and soot particle in getting rid of machine oil protects the engine, prevents that metal abrasive dust, high temperature in the engine oil from constantly mixing into lubricating oil by carbon deposit and colloidal precipitate, water etc. that oxidize under, keeps the cleanness of lubricating oil, prolongs its life, and its theory of operation is: when the engine normally works, engine oil enters the engine after being filtered by the filter paper, impurities in the engine oil are prevented from directly entering the generator without being filtered, and the generator is damaged, but when the engine is in cold start and the viscosity of the engine oil is high or the paper filter element is partially blocked or completely blocked, a direct oil flow channel is designed for ensuring that the engine oil can smoothly circulate back to the engine, namely, the engine oil directly enters the engine from the bypass valve without being filtered.

However, the existing oil filter for the automobile has the following problems in the actual use process: firstly, 40% of harmful impurities in the engine oil filtered by the filter paper in the existing engine oil filter cannot be effectively filtered by a paper filter element, and in the 40% of impurities, because the ferromagnetic impurities are relatively fine and hard, the ferromagnetic impurities are not easy to filter and directly penetrate through the filter paper to enter an engine, so that the ferromagnetic impurities are more in the impurities and the damage to the engine is the largest, and the harmful impurities in the engine oil are intercepted and filtered by tiny core holes in the filter paper, and the harmful impurities are adhered to the filtering surface of the filter paper after being filtered by the filter paper, so that the core holes of the filter paper are blocked, and the normal work of the filter is influenced; secondly, when the paper filter element is partially or completely blocked, the engine oil of the existing engine oil filter can open the bypass valve under the pressure of the oil pump, at the moment, the engine oil which circulates back to the engine through the bypass valve can not be filtered by the paper filter element, and large granular impurities which are filtered out by the paper filter element can be flushed back to the engine through the bypass valve again, so that uninterrupted secondary abrasion is brought to the engine, and therefore the engine oil filter used in the market basically plays a role in filtering under special conditions.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the self-cleaning oil filter for the automobile, which has the advantages of self-cleaning of filter paper and effective removal of impurities and solves the problems in the background technology.

The invention provides the following technical scheme: an automobile self-cleaning oil filter comprises a shell, wherein an upper cover plate is fixedly connected to the upper portion of the shell, an oil outlet is formed in the middle of the upper cover plate, a plurality of groups of oil inlet holes are formed in the outer side of the middle of the upper cover plate, a check valve is fixedly connected to the middle of the bottom end of the upper cover plate, an upper end cover is fixedly connected to the bottom of the check valve, a central pipe is fixedly connected to the middle of the bottom surface of the upper end cover, a lower end cover is fixedly connected to the bottom of the central pipe, filter paper is fixedly installed between the upper end cover and the lower end cover, an outer sleeve is movably sleeved on the outer side of the bottom surface of the upper end cover, an inner sleeve contacted with the inner side of the outer sleeve is fixedly installed on the bottom surface of the upper end cover, an annular, the bottom of storing up miscellaneous chamber both sides is provided with the blow off pipe, be provided with the oil storage room between lower end cover and the casing, the outside fixedly connected with shell body of casing, the inside drive arrangement that is provided with of shell body.

Preferably, drive arrangement include with casing fixed connection's fixed block, the first spring of upper end fixedly connected with of fixed block, the upper end fixedly connected with slider of first spring, the other end fixed mounting of slider has a plurality of groups of permanent magnet subassembly, the opposite side of permanent magnet subassembly is provided with the second spring.

Preferably, the outer sleeve comprises a main body, a plurality of groups of engine oil channels which are arranged in an equicircumferential manner are formed in the upper portion of the main body, a plurality of groups of through holes which are arranged in an equicircumferential manner are formed in the bottom of the main body, and permanent magnets which are correspondingly attracted to the permanent magnet assemblies on the two sides are respectively arranged in the two sides of the upper portion of the main body.

Preferably, a plurality of groups of passages matched with the engine oil passages are formed in the side surface of the inner sleeve, and the passages formed in the inner sleeve are slightly smaller than the engine oil passages.

Preferably, the upper portion of annular plate is seted up with the same hole of through-hole quantity size, and the hole on the annular plate all is provided with the filter screen.

Preferably, the oil storage chamber is communicated with the inside of the central tube through a pipeline.

The invention has the following beneficial effects:

1. through the arrangement of the outer sleeve and the driving device, the filtering impurities accumulated on the surface of the filter paper are excessive, when the internal pressure of the filter is increased, the permanent magnet assembly can drive the outer sleeve to deflect synchronously, a channel on the inner sleeve is staggered with an engine oil channel to separate the filter paper from unfiltered engine oil, meanwhile, a through hole is formed in the upper part of the annular plate and corresponds to a hole formed in the upper part of the annular plate to open a lower channel, at the moment, the unfiltered engine oil passes through the lower channel and extrudes clean engine oil in an oil storage chamber into a central pipe, at the moment, part of the engine oil enters the engine to continue working so as to achieve the effect of protecting the engine, the other part of the engine oil reversely passes through the filter paper to wash the impurities accumulated on the outer side of the filter paper, and the impurities are discharged through a drain pipe at the bottom of the impurity storage cavity, so that the, prevent the excessive impurity accumulation on the surface of the filter paper, prolong the service life of the filter paper and discharge the impurities in the oil filter.

2. Through the arrangement of the annular plate and the oil storage chamber, filtered clean engine oil is stored in the oil storage chamber, and the unfiltered engine oil subjected to backwashing is filtered, so that the engine oil is prevented from directly entering the engine without being filtered, and huge damage is caused to the engine.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in normal operation;

FIG. 3 is a schematic view of the structure of the present invention during backwashing;

FIG. 4 is a schematic view of a structural outer sleeve according to the present invention;

FIG. 5 is a front view of the outer sleeve of the present invention;

FIG. 6 is a schematic view of a structural annular plate of the present invention;

FIG. 7 is a top view of an annular plate of the present invention construction.

In the figure: 1. a housing; 2. an upper cover plate; 3. an oil outlet; 4. an oil inlet hole; 5. a check valve; 6. an upper end cover; 7. a central tube; 8. a lower end cover; 9. filtering paper; 10. an outer sleeve; 101. a main body; 102. an engine oil passage; 103. a through hole; 11. an inner sleeve; 12. an annular plate; 13. a trash storage cavity; 14. a blow-off pipe; 15. an oil storage chamber; 16. an outer housing; 17. a drive device; 171. a fixed block; 172. a first spring; 173. a slider; 174. a permanent magnet assembly; 175. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an automotive self-cleaning oil filter comprises a housing 1, an upper cover plate 2 fixedly connected to the upper portion of the housing 1, an oil outlet 3 formed in the middle of the upper cover plate 2, a plurality of sets of oil inlet holes 4 formed in the outer side of the middle of the upper cover plate 2, a check valve 5 fixedly connected to the middle of the bottom end of the upper cover plate 2, an upper end cover 6 fixedly connected to the bottom of the check valve 5, a central tube 7 fixedly connected to the middle of the bottom surface of the upper end cover 6, a lower end cover 8 fixedly connected to the bottom of the central tube 7, a filter paper 9 fixedly installed between the upper end cover 6 and the lower end cover 8, an outer sleeve 10 movably sleeved on the outer side of the bottom surface of the upper end cover 6, an inner sleeve 11 fixedly installed on the bottom surface of the upper end cover 6 and contacting the inner side of the outer sleeve 10, an annular plate 12 fixedly connected to, the bottom of the two sides of the impurity storage cavity 13 is provided with a sewage discharge pipe 14, an oil storage chamber 15 is arranged between the lower end cover 8 and the shell 1, the outer side of the shell 1 is fixedly connected with an outer shell 16, and a driving device 17 is arranged inside the outer shell 16.

The driving device 17 includes a fixed block 171 fixedly connected to the housing 1, the upper end of the fixed block 171 is fixedly connected to a first spring 172, the upper end of the first spring 172 is fixedly connected to a slider 173, the other end of the slider 173 is fixedly mounted with a plurality of groups of permanent magnet assemblies 174, the other side of the permanent magnet assemblies 174 is provided with a second spring 175, when the surface of the filter paper 9 is excessively filtered, the internal pressure of the filter is increased, the engine oil presses the slider 173 through holes formed in the two sides of the housing 1, so that the slider 173 overcomes the pulling force of the first spring 172 and the pressure of the second spring 175 to drive the permanent magnet assemblies 174 to deflect inside the outer housing 16, and the outer sleeve 10 is driven to deflect synchronously when the permanent magnet assemblies 174 deflect.

Wherein, the outer sleeve 10 includes the body 101, the upper portion of the body 101 has several groups of engine oil passages 102 arranged in the same circumference, the bottom of the body 101 has several groups of through holes 103 arranged in the same circumference, the inner portion of both sides of the upper portion of the body 101 has permanent magnets attracted to the permanent magnet assemblies 174 of both sides, because the outer sleeve 10 divides the oil filter into two parts of the filter chamber and the oil storage chamber 15, when the outer sleeve 10 deflects with the permanent magnet assemblies 174, the passage on the inner sleeve 11 is dislocated with the engine oil passage 102, separate the filter paper 9 from the unfiltered engine oil, and the through hole 103 and the hole opened on the upper portion of the annular plate 12 correspond to the lower passage, at this moment, the unfiltered engine oil passes from below and extrudes the clean engine oil in the oil storage chamber 15 to the central tube 7, a part of the engine oil enters the engine to continue working, in order to achieve the effect, impurities accumulated on the outer side of the filter paper 9 are washed and discharged through the sewage discharge pipe 14 at the bottom of the impurity storage cavity 13, after the sewage discharge is completed, the oil pump stops working, the internal pressure of the oil filter disappears, the permanent magnet assembly 174 restores to the original position under the action of the first spring 172 and the second spring 175, the outer sleeve 10 is driven to restore to the original position, and the oil filtering work can be performed again.

The inner sleeve 11 is provided with a plurality of groups of channels matched with the engine oil channel 102 on the side surface, the channel formed on the inner sleeve 11 is slightly smaller than the engine oil channel 102, the channel on the inner sleeve 11 is communicated with the engine oil channel 102 when the filter paper 9 is normally filtered, the normal work of the oil filter is not influenced, when the outer sleeve 10 deflects, the channel on the inner sleeve 11 and the engine oil channel 102 are sealed in a staggered mode, the backwashing work is facilitated, impurities on the surface of the filter paper 9 are prevented from being mixed with the entering engine oil again during backwashing, and secondary filtering is avoided.

Holes with the same number as the through holes 103 are formed in the upper portion of the annular plate 12, filter screens are arranged in the holes in the annular plate 12, and unfiltered engine oil subjected to backwashing is filtered, so that the engine oil is prevented from directly entering the engine without being filtered and causing huge damage to the engine.

The oil storage chamber 15 is communicated with the interior of the central tube 7 through a pipeline, so that filtered clean engine oil is stored in the oil storage chamber 15, and backwashing work is facilitated.

In operation, when the outer sleeve 10 deflects with the permanent magnet assembly 174, the passages in the inner sleeve 11 become misaligned with the oil passages 102, separating the filter paper 9 from the unfiltered oil, meanwhile, the lower channel is correspondingly opened by the through hole 103 and the hole formed at the upper part of the annular plate 12, at the moment, the unfiltered engine oil passes through the lower part and extrudes the clean engine oil in the oil storage chamber 15 to the central tube 7, a part of the engine oil enters the engine to continue working, so as to protect the engine, the other part of the engine oil reversely passes through the filter paper 9 to wash the impurities accumulated on the outer side of the filter paper 9, and is discharged through the sewage discharge pipe 14 at the bottom of the impurity storage cavity 13, after the sewage discharge is completed, the oil pump stops working, the internal pressure of the oil filter disappears, the permanent magnet assembly 174 restores to the original position under the action of the first spring 172 and the second spring 175, and drives the outer sleeve 10 to restore to the original position, and the oil filtering work can be performed again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile is with automatically cleaning oil cleaner, includes casing (1), upper portion fixedly connected with upper cover plate (2) of casing (1), oil-out (3) have been seted up at the middle part of upper cover plate (2), a plurality of groups inlet port (4) have been seted up in the outside at upper cover plate (2) middle part, middle part fixedly connected with check valve (5) of upper cover plate (2) bottom, bottom fixedly connected with upper end cover (6) of check valve (5), middle part fixedly connected with center tube (7) of upper end cover (6) bottom surface, bottom fixedly connected with lower end cover (8) of center tube (7), fixed mounting has filter paper (9), its characterized in that between upper end cover (6) and lower end cover (8): outer sleeve (10) have been cup jointed in the outside activity of upper end cover (6) bottom surface, upper end cover (6) bottom surface fixed mounting has inner sleeve (11) that contacts with outer sleeve (10) inboard, annular plate (12) that the upper portion fixedly connected with in lower extreme cover (8) outside and outer sleeve (10) bottom surface contacted, the miscellaneous chamber (13) of storage with filter paper (9) looks adaptation is seted up in the outside at the middle part of lower extreme cover (8) upper end, the bottom of storing up miscellaneous chamber (13) both sides is provided with blow off pipe (14), be provided with oil storage chamber (15) between lower extreme cover (8) and casing (1), the outside fixedly connected with shell body (16) of casing (1), inside drive arrangement (17) that is provided with of shell body (16).

2. The self-cleaning oil filter for the automobile according to claim 1, wherein: drive arrangement (17) include with casing (1) fixed connection's fixed block (171), the upper end fixedly connected with first spring (172) of fixed block (171), the upper end fixedly connected with slider (173) of first spring (172), the other end fixed mounting of slider (173) has a plurality of groups of permanent magnet subassembly (174), the opposite side of permanent magnet subassembly (174) is provided with second spring (175).

3. The self-cleaning oil filter for the automobile according to claim 1, wherein: the outer sleeve (10) comprises a main body (101), a plurality of groups of engine oil channels (102) which are arranged in an equal circumference mode are formed in the upper portion of the main body (101), a plurality of groups of through holes (103) which are arranged in an equal circumference mode are formed in the bottom of the main body (101), and permanent magnets which are correspondingly attracted to the permanent magnet assemblies (174) on the two sides are respectively arranged in the two sides of the upper portion of the main body (101).

4. The self-cleaning oil filter for the automobile according to claim 1, wherein: the side surface of the inner sleeve (11) is provided with a plurality of groups of channels matched with the engine oil channel (102), and the channels formed on the inner sleeve (11) are slightly smaller than the engine oil channel (102).

5. The self-cleaning oil filter for the automobile according to claim 1, wherein: holes with the same number and size as the through holes (103) are formed in the upper portion of the annular plate (12), and filter screens are arranged in the holes in the annular plate (12).

6. The self-cleaning oil filter for the automobile according to claim 1, wherein: the oil storage chamber (15) is communicated with the interior of the central tube (7) through a pipeline.