A kind of multistage filtering formula oil filter
Technical field
The present invention relates to cleaner technical field, more particularly to a kind of multistage filtering formula oil filter.
Background technology
Existing oil filter, is to intercept to filter out objectionable impurities in machine oil by single paper filter element hole, its filter paper
The smaller filter effect of micropore it is better, but machine oil handling capacity is poorer.In order to solve can be filtered on same filter paper micropore
Except the impurity of smallest particles, thus the machine oil of supply engine sufficient amount can be made again also can pass through this contradiction by micropore.Through country
Cleaner branch of ic engine industry association, the best oil filter of in the market can only also be designed into that to filter out in machine oil 60% miscellaneous
The ability of matter, this is the maximum filtering value drawn after thousands of times are tested.In actual use, also 40% it is harmful miscellaneous
Matter, it is impossible to effectively filtered out by paper filter element, in this 40% impurity, because Ferromagnetic Impurities are relatively tiny and hard, so with iron
Magnetic impurity is in the majority, and it is also just maximum to engine damage.
The content of the invention
Based on technical problem present in background technology, the present invention proposes a kind of multistage filtering formula oil filter.
A kind of multistage filtering formula oil filter proposed by the present invention, including housing, the first dividing plate, second partition, first
Magnetic absorption device, the second magnetic absorption device, the first filter core, the second filter core, the 3rd filter core, wherein:
Housing is to be respectively equipped with the first end cap, the second end cap at the tube structure of both ends open, the both ends open of housing, the
One end is covered provided with oil inlet, and the second end cap is provided with oil-out;
First dividing plate, second partition arrange that housing cavity is separated into by the first dividing plate, second partition along housing axially spaced-apart
First chamber, second chamber, the 3rd chamber, the first dividing plate are provided with the first oil guiding hole, and second partition is provided with the second oil guiding hole;
First magnetic absorption device is arranged in first chamber, and the first magnetic absorption device includes two coaxially arranged the
The first magnetic pieces is distributed with gap between one circular filter net, two first annular screen packs;
First filter core is arranged in the first magnetic absorption device, and the first filter core, the first magnetic absorption device are by first chamber
The first filter chamber, the second filter chamber, the 3rd filter chamber are separated into, the first filter chamber is connected with oil inlet;
Second magnetic absorption device is arranged in second chamber, and the second magnetic absorption device includes two coaxially arranged the
The second magnetic pieces is distributed with gap between second ring screen pack, two the second circular filter nets;
Second filter core is arranged in the second magnetic absorption device, and the second filter core, the second magnetic absorption device are by second chamber
The 4th filter chamber, the 5th filter chamber, the 6th filter chamber are separated into, the 6th filter chamber is connected by the first oil guiding hole and the 3rd filter chamber
It is logical;
3rd filter core is arranged in the 3rd chamber, and the 3rd chamber is separated into the 7th filter chamber, the 8th filtering by the 3rd filter core
Chamber, the 7th filter chamber is connected by the second oil guiding hole with the 4th filter chamber, and the 8th filter chamber is connected with oil-out.
It is preferred that, it is communicated with setting in the second filter chamber, the first through hole of the 5th filter chamber, first through hole on the first dividing plate
There is the first by-passing valve.
It is preferred that, it is communicated with second partition in the second through hole of the 6th filter chamber and the 8th filter chamber, the second through hole
Provided with the second by-passing valve.
It is preferred that, the first oil guiding hole is close to the 6th filter chamber side provided with the first backflow suppressing part.
It is preferred that, the first backflow suppressing part includes the first dish and suppresses piece and the first spring, and the first dish suppresses the dish of piece
Shape opening suppresses diameter of the diameter more than the first oil guiding hole of piece towards the first dividing plate and the first dish, and the first dividing plate is close to the 6th
Filter chamber side is provided with first mounting groove coaxially arranged with the first oil guiding hole, and the first spring one end and the first dish suppress piece and connected
Connect and its other end is connected with the first mounting groove.
It is preferred that, the second oil guiding hole is close to the 7th filter chamber side provided with the second backflow suppressing part.
It is preferred that, the second backflow suppressing part includes the second dish and suppresses piece and second spring, and the second dish suppresses the dish of piece
Shape opening suppresses diameter of the diameter more than the second oil guiding hole of piece towards second partition and the second dish, and second partition is close to the 7th
Filter chamber side is provided with second mounting groove coaxially arranged with the second oil guiding hole, and second spring one end suppresses piece with the second dish and connected
Connect and its other end is connected with the second mounting groove.
It is preferred that, the filtering bore dia of first annular screen pack is more than the filtering bore dia of the second circular filter net.
It is preferred that, the filter bores of two first annular screen packs are staggeredly arranged.
It is preferred that, the filter bores of two the second circular filter nets are staggeredly arranged.
In the present invention, housing cavity is separated into first chamber, second chamber, the 3rd chamber by the first dividing plate, second partition,
First magnetic absorption device, the first filter core are arranged in first chamber, and the second magnetic absorption device, the second filter core are arranged on second
In chamber, the 3rd filter core is arranged in the 3rd chamber, in-engine machine oil from oil inlet enter the first filter chamber in, machine oil by
First magnetic absorption device carries out entering in the second filter chamber after magnetic absorption filtering to metal impurities, after the first filter element filtering
Into the 3rd filter chamber, the 6th filter chamber is being entered by the first oil guiding hole, the 5th filter chamber is entered after the second filter element filtering,
Again by the second magnetic absorption device to entering the 4th filter chamber after the further magnetic absorption of metal impurities, then from the second oil guiding hole
Into the 7th filter chamber, finally it is back to after the 3rd filter element filtering from oil-out in engine.The present invention utilizes the first magnetic
Adsorbent equipment, the first filter core, the second filter core, the second magnetic absorption device, the 3rd filter core carry out repeatedly adsorbing repeatedly to machine oil
Filter, it is possible to increase filter effect, can be adequately filtered out the objectionable impurities in machine oil, the first filter core of reduction, the second filter core, the 3rd
The risk that filter core is blocked, the first filter core of extension, the second filter core, the service life of the 3rd filter core;First magnetic of the invention is inhaled
The metal impurities that adsorption device is adsorbed can be entirely localized in the gap between two first annular screen packs, and the second magnetic is inhaled
The metal that adsorption device is adsorbed can be entirely localized in the gap between two the second circular filter nets, will not be with machine oil stream
It is dynamic, it is prevented effectively from granule foreign and comes back in engine, the problem of bringing continual secondary abrasion to engine.
Brief description of the drawings
Fig. 1 is a kind of structural representation of multistage filtering formula oil filter proposed by the present invention;
Fig. 2 is mplifying structure schematic diagram at A in Fig. 1;
Fig. 3 is mplifying structure schematic diagram at B in Fig. 1.
Embodiment
Reference picture 1, Fig. 2, Fig. 3, the present invention propose a kind of multistage filtering formula oil filter, including housing 1, the first dividing plate
2nd, second partition 3, the first magnetic absorption device, the second magnetic absorption device, the first filter core 4, the second filter core 5, the 3rd filter core 6,
Wherein:
Housing 1 is to be respectively equipped with the first end cap 7, the second end cap at the tube structure of both ends open, the both ends open of housing 1
8, the first end cap 7 is provided with oil inlet 9, and the second end cap 8 is provided with oil-out 10.
First dividing plate 2, second partition 3 arrange that the first dividing plate 2, second partition 3 are by the inner chamber of housing 1 along the axially spaced-apart of housing 1
First chamber, second chamber, the 3rd chamber are separated into, the first dividing plate 2 is provided with the first oil guiding hole 11, and second partition 3 is provided with
Second oil guiding hole 12.
First magnetic absorption device is arranged in first chamber, and the first magnetic absorption device includes two coaxially arranged the
One circular filter net 13, the filter bores of two first annular screen packs 13 are staggeredly arranged, between two first annular screen packs 13
Gap in the first magnetic pieces 14 is distributed with.
First filter core 4 is arranged in the first magnetic absorption device, and the first filter core 4, the first magnetic absorption device are by the first chamber
Room is separated into the first filter chamber 15, the second filter chamber 16, the 3rd filter chamber 17, and the first filter chamber 15 is connected with oil inlet 9.
Second magnetic absorption device is arranged in second chamber, and the second magnetic absorption device includes two coaxially arranged the
Second ring screen pack 18, the filter bores of two the second circular filter nets 18 are staggeredly arranged, and the filtering of the second circular filter net 18
Bore dia, which is less than in the gap between the filtering bore dia of first annular screen pack 13, two the second circular filter nets 18, to be distributed with
Second magnetic pieces 19.
Second filter core 5 is arranged in the second magnetic absorption device, and the second filter core 5, the second magnetic absorption device are by the second chamber
Room is separated into the 4th filter chamber 20, the 5th filter chamber 21, the 6th filter chamber 22, the 6th filter chamber 22 by the first oil guiding hole 11 with
3rd filter chamber 17 is connected.
3rd filter core 6 is arranged in the 3rd chamber, and the 3rd chamber is separated into the 7th filter chamber the 23, the 8th by the 3rd filter core 6
Filter chamber 24, the 7th filter chamber 23 is connected by the second oil guiding hole 12 with the 4th filter chamber 20, the 8th filter chamber 24 and oil-out
10 connections.
In a particular embodiment, be communicated with the first dividing plate 2 second filter chamber 16, the 5th filter chamber 21 first lead to
The first by-passing valve 25 is provided with hole, first through hole.When the first filter core 4 is blocked, as pressure is continuously increased in first chamber,
First by-passing valve 25 is opened, and the machine oil after being filtered through the first magnetic absorption device directly enters the 5th mistake from the first by-passing valve 25
In filter chamber 21.
In a particular embodiment, second that the 6th filter chamber 22 and the 8th filter chamber 24 are communicated with second partition 3 is led to
The second by-passing valve 26 is provided with hole, the second through hole.When the second filter core 5 is blocked, with the 6th filter chamber 22 pressure it is continuous
Increase, the second by-passing valve 26 is opened, and the machine oil after the first magnetic absorption device, the filtering of the first filter core 4 is directly by second
Port valve 26 enters the 8th filter chamber 24.
In a particular embodiment, in order to prevent the machine oil entered in the 6th filter chamber 22 to be back in the 3rd filter chamber 17,
In the first oil guiding hole 11 close to the side of the 6th filter chamber 22 provided with the first backflow suppressing part.First backflow suppressing part includes the first dish
Shape suppresses the spring 28 of piece 27 and first, and the dish of the first dish suppression piece 27 is open towards the first dividing plate 2 and the first dish suppression
The diameter of piece 27 is more than the diameter of the first oil guiding hole 11, and the first dividing plate 2 is provided with and the first Oil Guide close to the side of the 6th filter chamber 22
The first coaxially arranged mounting groove 29 of hole 11, one end of the first spring 28 suppresses piece 27 with the first dish and is connected and its other end and the
One mounting groove 29 is connected.
In a particular embodiment, in order to prevent the machine oil entered in the 7th filter chamber 23 to be back in the 4th filter chamber 20,
In the second oil guiding hole 12 close to the side of the 7th filter chamber 23 provided with the second backflow suppressing part.Second backflow suppressing part includes the second dish
Shape suppresses piece 30 and second spring 31, and the second dish-shaped dish for suppressing piece 30 is open towards second partition 3 and the second dish suppression
The diameter of piece 30 is more than the diameter of the second oil guiding hole 12, and second partition 3 is provided with and the second Oil Guide close to the side of the 7th filter chamber 23
The second coaxially arranged mounting groove 32 of hole 12, one end of second spring 31 suppresses piece 30 with the second dish and is connected and its other end and the
Two mounting grooves 32 are connected.
A kind of multistage filtering formula oil filter proposed by the present invention, in-engine machine oil enters first from oil inlet 9
In filter chamber 15, machine oil is carried out entering the second filter chamber 16 after magnetic absorption filtering by the first magnetic absorption device to metal impurities
It is interior, by the first filter core 4 filter after enter the 3rd filter chamber 17, the 6th filter chamber 22 is being entered by the first oil guiding hole 11, through the
Two filter cores 5 filtering after enter the 5th filter chamber 21, then by the second magnetic absorption device to the further magnetic absorption of metal impurities after
Into the 4th filter chamber 20, then enter the 7th filter chamber 23 from the second oil guiding hole 12, finally by the 3rd filter core 6 filter after from going out
Hydraulic fluid port 10 is back in engine.The present invention utilizes the first magnetic absorption device, the first filter core 4, the second filter core 5, the second magnetic
Adsorbent equipment, the 3rd filter core 6 carry out repeatedly adsorption filtration repeatedly to machine oil, it is possible to increase filter effect, can be adequately filtered out
Objectionable impurities in machine oil, the risk that the first filter core 4 of reduction, the second filter core 5, the 3rd filter core 6 are blocked, extends the first filter core
4th, the second filter core 5, the service life of the 3rd filter core 6;The metal impurities that first magnetic absorption device of the invention is adsorbed can be complete
Full cut-off is stayed in the gap between two first annular screen packs 13, and the metal that the second magnetic absorption device is adsorbed can be complete
Rest in the gap between two the second circular filter nets 18, granule foreign will not be prevented effectively from again with engine oil flow
Return in engine, the problem of bringing continual secondary abrasion to engine.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.