CN107061426A - Oil filtering device and hydraulic test - Google Patents
Oil filtering device and hydraulic test Download PDFInfo
- Publication number
- CN107061426A CN107061426A CN201710481315.6A CN201710481315A CN107061426A CN 107061426 A CN107061426 A CN 107061426A CN 201710481315 A CN201710481315 A CN 201710481315A CN 107061426 A CN107061426 A CN 107061426A
- Authority
- CN
- China
- Prior art keywords
- port
- filtering device
- valve
- filtration members
- reversal valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 139
- 239000012530 fluid Substances 0.000 claims description 28
- 230000008520 organization Effects 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- 230000008844 regulatory mechanism Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 91
- 210000000214 mouth Anatomy 0.000 description 26
- 239000003344 environmental pollutant Substances 0.000 description 18
- 231100000719 pollutant Toxicity 0.000 description 18
- 230000009467 reduction Effects 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
Abstract
The invention discloses a kind of oil filtering device and hydraulic test, cause the low technical problem of filter effect because long-time is used to solve the filter in correlation technique.The oil filtering device, including reversal valve and filtration members；The reversal valve includes the first port, the second port, third connectivity mouth and the 4th port, and first port is connected with the first end of the filtration members, and second port is connected with the second end of the filtration members；When the reversal valve, which commutates to the third connectivity mouth, to be connected with first port, the 4th port is connected with second port；When the reversal valve, which commutates to the third connectivity mouth, to be connected with second port, the 4th port is connected with first port.
Description
Technical field
The present invention relates to filtration art, more particularly to a kind of oil filtering device and hydraulic test.
Background technology
Hydraulic pump is the necessary parts of hydraulic system, in the hydraulic system of vulnerable to pollution, particularly the liquid in colliery place
Press mechanical pressing equipment, has substantial amounts of dust, dust is easily mixed into hydraulic oil, and contaminated hydraulic oil enters liquid due to being floated in environment
In press pump or its controlling organization, hydraulic pump or controlling organization failure can be made, cause equipment can not normal work.
Shown in reference picture 1, correlation technique provides a kind of hydraulic pump filter, for entering to the hydraulic oil in hydraulic pump
Row filtering.The filter includes valve body 1', valve element 2', bonnet 3', jump ring 4', flow guiding disc 5', spring 6', the first screen pack 7'
And the second screen pack 8', wherein, valve body 1' has an inner chamber, length direction extension of the inner chamber along valve body 2', jump ring 4', water conservancy diversion
Disk 5' and valve element 2' are set gradually along the length direction of inner chamber, and spring 6' is set on valve element 2', one end of bonnet 3' and inner chamber
Threadedly connect, bonnet 3' is provided with the endoporus through bonnet thickness, the first screen pack 7' and the second screen pack 8' edges
The axial direction of endoporus is installed in endoporus successively.The operation principle of the filter is：The pressure produced when hydraulic oil pump works
When reaching the pressure designed by the device, fluid can promote valve element to away from bonnet by the first screen pack and the second screen pack
Direction is moved, and is flowed out by the tap hole of flow guiding disc, finally flows out valve body by the other end of inner chamber.
The filter that above-mentioned correlation technique is provided by using for a long time, and screen pack therein can be due to pollutant
Block and cause filter effect to reduce.
The content of the invention
It is an object of the invention to provide a kind of oil filtering device, to solve the filter in correlation technique due to length
Time is using causing the low technical problem of filter effect.
The present invention provides a kind of oil filtering device, and the oil filtering device includes reversal valve and filtration members；
The reversal valve include the first port, the second port, third connectivity mouth and the 4th port, first port with it is described
The first end connection of filtration members, second port is connected with the second end of the filtration members；
When the reversal valve, which commutates to the third connectivity mouth, to be connected with first port, the 4th port with it is described
Second port is connected；When the reversal valve, which commutates to the third connectivity mouth, to be connected with second port, the 4th port
Connected with first port.
Further, in addition to check valve；
Adapter path between second port and second end is to be provided with unidirectional oil circuit, the unidirectional oil circuit
Check valve, for turning on by the path of second hydraulic fluid port to second end.
Further, the check valve is hydraulic control one-way valve.
Further, the filtration members are single-layer filter.
Further, the reversal valve is pilot operated directional control valve.
Further, the reversal valve is four-way reversing valve.
Further, the reversal valve is provided with manual adjustment means, the manual adjustment means and the reversal valve
Valve element is connected, for driving the valve element to move.
Further, the valve element of the reversal valve is provided with balancing slit, circumferentially extending of the balancing slit along the valve element.
Further, the balancing slit is multiple, and multiple balancing slits are arranged at intervals successively along the axial direction of the valve element.
The filter that the present invention is provided, it includes reversal valve and filtration members；Reversal valve therein includes the first port, the
The second of the first end connection of two ports, third connectivity mouth and the 4th port, the first port and filtration members, the second port and filtration members
End connection；When reversal valve, which commutates to third connectivity mouth, to be connected with the first port, the 4th port is connected with the second port；Work as reversal valve
When commutation to third connectivity mouth is connected with the second port, the 4th port is connected with the first port.In use, when reversal valve commutates to
When three ports are connected with the first port, the 4th port is connected with the second port, now, the 3rd hydraulic fluid port that contaminated oil passes through reversal valve
Into reversal valve, contaminated oil is reached the first end of filtration members by the first port of reversal valve, contaminated oil by filtration members first end
Filtered during reaching the second end, with the progress of said process, the pollutant that filtration members are filtered gradually increases, it is dirty
Dye thing is stored in filtration members and gradually by filtration members and blocked, now, the oil pressure rise of the first end of filtration members, and the of filtration members
The oil pressure reduction at two ends, thus generation oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth and connected with the second port.
When reversal valve, which commutates to third connectivity mouth, to be connected with the second port, the 4th port is connected with the first port, now, dirty
Dye oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, and contaminated oil reaches the second of filtration members by the second port of reversal valve
End, contaminated oil to filtration members during the second end arrival first end of filtration members by carrying out back flush so that in filtration members
Pollutant gradually decrease, be continued for filtering contaminated oil again by being rinsed to be changed into filtration members, work as certain time
Afterwards, filtration members are contaminated thing and blocked again, now, the oil pressure rise at the second end of filtration members, the oil pressure of the first end of filtration members
Reduction, thus generation oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth and connected with the first port, and so on follows
Ring, the continuous filtering contaminants of filtration members are simultaneously constantly rinsed pollutant by fluid.
Compared to prior art, the filter that the present invention is provided realizes reverse punching by the cooperation of reversal valve and filtration members
Wash, the filter is realized automatic cleaning function, not only add the service life of filtration members and whole filter, and
And, even if using for a long time, the filter can still keep higher filter effect.
The present invention also aims to provide a kind of hydraulic test, the hydraulic test includes the pump housing, controlling organization and fuel tank,
And oil filtering device as described above；Wherein
One of which in both 3rd hydraulic fluid port of the oil filtering device and the 4th hydraulic fluid port is connected with the pump housing；
The other of both the 3rd hydraulic fluid port of the oil filtering device and the 4th hydraulic fluid port are connected with the fuel tank；
Second end of the filtration members of the oil filtering device is connected with the import of the controlling organization.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the filter in correlation technique；
Fig. 2 is the principle schematic of oil filtering device according to embodiments of the present invention；
Fig. 3 is the first sectional view of oil filtering device according to embodiments of the present invention；
Fig. 4 is the second sectional view of oil filtering device according to embodiments of the present invention；
Fig. 5 is the explosive view of oil filtering device according to embodiments of the present invention.
In figure：
1- reversal valves；2- filtration members；
3- check valves；4- seals；
10- valve elements；The ports of 11- first；
The ports of 12- second；13- third connectivity mouthes；
The ports of 14- the 4th；15- manual adjustment means；
The unidirectional oil circuits of 16-；The oil circuits of 17- first；
The oil circuits of 18- second；The cavitys of 19- first；
21- first ends；The ends of 22- second.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 2 is the principle schematic of oil filtering device according to embodiments of the present invention, and Fig. 3 is according to embodiments of the present invention
Oil filtering device the first sectional view, Fig. 4 is the second sectional view of oil filtering device according to embodiments of the present invention, figure
5 be the explosive view of oil filtering device according to embodiments of the present invention.
Referring to figs. 1 to shown in Fig. 5, the present embodiment provides a kind of oil filtering device, and oil filtering device includes reversal valve 1
With filtration members 2.Wherein, reversal valve 1 includes the first port 11, the second port 12, the port 14 of third connectivity mouth 13 and the 4th, and first leads to
Mouth 11 is connected with the first end 21 of filtration members 2, and the second port 12 is connected with the second end 22 of filtration members 2.
When reversal valve 1, which commutates to third connectivity mouth 13, to be connected with the first port 11, the 4th port 14 connects with the second port 12
It is logical；When reversal valve 1, which commutates to third connectivity mouth 13, to be connected with the second port 12, the 4th port 14 is connected with the first port 11.
The filter that the present embodiment is provided, in use, when reversal valve commutates to third connectivity mouth and connected with the first port,
4th port is connected with the second port, now, and contaminated oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, and contaminated oil is by commutating
First port of valve reaches the first end of filtration members, and contaminated oil during the second end of first end arrival of filtration members by being able to
Filter, with the progress of said process, the pollutant that filtration members are filtered gradually increases, and pollutant is stored in filtration members and gradually
Filtration members are blocked, now, thus the oil pressure rise of the first end of filtration members, the oil pressure reduction at the second end of filtration members produces
Oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth and connected with the second port.
When reversal valve, which commutates to third connectivity mouth, to be connected with the second port, the 4th port is connected with the first port, now, dirty
Dye oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, and contaminated oil reaches the second of filtration members by the second port of reversal valve
End, contaminated oil to filtration members during the second end arrival first end of filtration members by carrying out back flush so that in filtration members
Pollutant gradually decrease, be continued for filtering contaminated oil again by being rinsed to be changed into filtration members, work as certain time
Afterwards, filtration members are contaminated thing and blocked again, now, the oil pressure rise at the second end of filtration members, the oil pressure of the first end of filtration members
Reduction, thus generation oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth and connected with the first port, and so on follows
Ring, the continuous filtering contaminants of filtration members are simultaneously constantly rinsed pollutant by fluid.
Further, in addition to the adapter path between check valve 3, also, the second port 12 and the second end 22 is unidirectional
Check valve 3 is provided with oil circuit 16, unidirectional oil circuit 16, for turning on by the path at the end 22 of the second port 12 to the second.
In use, the import of controlling organization is connected with the second end, when reversal valve commutates to third connectivity mouth and the first port
During connection, the 4th port is connected with the second port, now, and contaminated oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, pollution
Oil is reached the first end of filtration members by the first port of reversal valve, and contaminated oil is reached the process at the second end by the first end of filtration members
In filtered, the hydraulic oil after filtering by import enter controlling organization in, should during, the second port is connected with the second end
But it is not turned on, with the progress of said process, the pollutant that filtration members are filtered gradually increases, and pollutant is stored in filtration members
And gradually block filtration members, now, the oil pressure rise of the first end of filtration members, the oil pressure reduction at the second end of filtration members, by
This generation oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth and connected with the second port.
When reversal valve, which commutates to third connectivity mouth, to be connected with the second port, the 4th port is connected with the first port, now, dirty
Dye oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, and the second port is connected and turned on the second end, and contaminated oil is by reversal valve
The second port reach filtration members the second end, contaminated oil by filtration members the second end reach first end during to filtration members
Carry out back flush so that the pollutant in filtration members is gradually decreased, and is continued for filtration members being changed into again by being rinsed
Contaminated oil is filtered, after certain time, filtration members are contaminated thing and blocked again, now, the oil pressure at the second end of filtration members
Rise, the oil pressure reduction of the first end of filtration members, thus generation oil pressure is poor, and the oil pressure difference forces reversal valve to commutate to third connectivity mouth
Connect, and so on circulate with the first port, the continuous filtering contaminants of filtration members are simultaneously constantly rinsed pollutant by fluid.
Wherein, during check valve can be electric control one-way valve or hydraulic control one-way valve, the present embodiment, for increase convenience, set single
It is hydraulic control one-way valve to valve.
In other embodiment, check valve can be not provided with, in use, when reversal valve commutates to third connectivity mouth and the first port company
When logical, the 4th port is connected with the second port, now, and contaminated oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, contaminated oil
By reversal valve the first port reach filtration members first end, contaminated oil by filtration members first end reach the second end during
Filtered, filtered contaminated oil is reached the second hydraulic fluid port of reversal valve, then the through reversal valve the 4th by the second end of filtration members
Hydraulic fluid port flow reversing valves, with the progress of said process, the pollutant that filtration members are filtered gradually increases, and pollutant was stored in
On filter part and gradually filtration members are blocked, now, the oil pressure rise between the first port of reversal valve and the first end of filtration members,
Oil pressure reduction between second port of reversal valve and the second end of filtration members, thus generation oil pressure is poor, and the oil pressure difference, which is forced, changes
Commutate to third connectivity mouth and connected with the second port to valve.
When reversal valve, which commutates to third connectivity mouth, to be connected with the second port, the 4th port is connected with the first port, now, dirty
Dye oil enters reversal valve by the 3rd hydraulic fluid port of reversal valve, and contaminated oil reaches the second of filtration members by the second port of reversal valve
End, contaminated oil to filtration members during the second end arrival first end of filtration members by carrying out back flush so that in filtration members
Pollutant gradually decrease, be continued for filtering contaminated oil again by being rinsed to be changed into filtration members, work as certain time
Afterwards, filtration members are contaminated thing and blocked again, now, the oil pressure liter between the second port of reversal valve and the second end of filtration members
Height, the oil pressure reduction between the first port of reversal valve and the first end of filtration members, thus generation oil pressure is poor, and the oil pressure difference is forced
Reversal valve commutates to third connectivity mouth and connected with the first port, and so on circulates, the continuous filtering contaminants of filtration members and constantly quilt
Fluid is rinsed pollutant.
Preferably, filtration members are single-layer filter, and such pollutant is stored in after screen pack, and hydraulic oil can be easily by it
Rinse.Certainly, the screen pack that filtration members can also be cascading for multilayer, but be due to that pollutant can be accumulated in adjacent two
It should not be rinsed between individual screen pack, therefore, in the present embodiment, preferably single-layer filter.
Preferably, the periphery of screen pack is provided with seal 4, to realize sealing.
Further, reversal valve can be electric control reversing valve or pilot operated directional control valve, in the present embodiment, for increase convenience, if
Reversal valve is put for pilot operated directional control valve.
Also, reversal valve is four-way reversing valve, including two-position four way change valve and three is four-way reversing valve, the present embodiment
In, it is preferable that reversal valve is two-position four way change valve.
In other embodiment, reversal valve can be switch valve with two-position and five-pass or 3 position-5 way valve, according to specifically used field
Scape is selected.
Further, reversal valve 1 is provided with manual adjustment means 15, manual adjustment means 15 and the valve element 10 of reversal valve 1
Connection, for driving valve element 10 to move, to realize the purpose of artificial fixed time cleaning.
Further, the valve element of reversal valve is provided with balancing slit, circumferentially extending of the balancing slit along valve element.Also, balancing slit
To be multiple, multiple balancing slits are arranged at intervals successively along the axial direction of valve element, are pressed with realizing.
The two ends of the length direction of valve element 10 are respectively arranged with the first cavity 19 and the second cavity (not shown), first
Cavity 19 is connected with the second end 22 of filtration members 2 by the first oil circuit 17, and the first ends 21 of the second cavity and filtration members 2 passes through the
Two oil circuits 18 are connected, to drive the valve element 10 of reversal valve 1 to move.
The present invention also aims to provide a kind of hydraulic test, the hydraulic test includes the pump housing, controlling organization and fuel tank,
And oil filtering device as above；One of which wherein in both the 3rd hydraulic fluid port and the 4th hydraulic fluid port of oil filtering device with
The pump housing is connected；The other of both the 3rd hydraulic fluid port of oil filtering device and the 4th hydraulic fluid port are connected with fuel tank；Oil filtrating is filled
Second end of the filtration members put is connected with controlling organization.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of oil filtering device, it is characterised in that including reversal valve (1) and filtration members (2)；
The reversal valve (1) includes the first port (11), the second port (12), third connectivity mouth (13) and the 4th port (14), institute
State the first port (11) to be connected with the first end (21) of the filtration members (2), second port (12) and the filtration members (2)
The second end (22) connection；
When the reversal valve (1) commutation is connected to the third connectivity mouth (13) with first port (11), the four-way
Mouth (14) is connected with second port (12)；When the reversal valve (1) commutation to the third connectivity mouth (13) and described second
When port (12) is connected, the 4th port (14) connects with first port (11).
2. oil filtering device according to claim 1, it is characterised in that also including check valve (3)；
Adapter path between second port (12) and second end (22) is unidirectional oil circuit (16), the unidirectional oil circuit
(16) check valve (3) is provided with, for turning on by the path of second port (12) to second end (22).
3. oil filtering device according to claim 2, it is characterised in that the check valve (3) is hydraulic control one-way valve.
4. oil filtering device according to claim 1, it is characterised in that the filtration members (2) are single-layer filter.
5. oil filtering device according to claim 1, it is characterised in that the reversal valve (1) is pilot operated directional control valve.
6. oil filtering device according to claim 1, it is characterised in that the reversal valve (1) is four-way reversing valve.
7. oil filtering device according to claim 1, it is characterised in that the reversal valve (1) is provided with manual regulation
Mechanism (15), the manual adjustment means (15) are connected with the valve element (10) of the reversal valve (1), for driving the valve element
(10) it is mobile.
8. oil filtering device according to claim 1, it is characterised in that set on the valve element (10) of the reversal valve (1)
There are balancing slit, circumferentially extending of the balancing slit along the valve element.
9. oil filtering device according to claim 8, it is characterised in that the balancing slit be it is multiple, it is multiple it is described
Indent is arranged at intervals successively along the axial direction of the valve element (10).
10. a kind of hydraulic test, it is characterised in that including the pump housing, controlling organization and fuel tank, and as appointed in claim 1-9
Oil filtering device described in one；Wherein
One of which in both 3rd hydraulic fluid port (13) of the oil filtering device and the 4th hydraulic fluid port (14) connects with the pump housing
Connect；
The other of both the 3rd hydraulic fluid port (13) of the oil filtering device and the 4th hydraulic fluid port (14) are connected with the fuel tank；
The second end (22) of the filtration members (2) of the oil filtering device is connected with the import of the controlling organization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481315.6A CN107061426B (en) | 2017-06-22 | 2017-06-22 | Oil liquid filtering device and hydraulic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481315.6A CN107061426B (en) | 2017-06-22 | 2017-06-22 | Oil liquid filtering device and hydraulic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061426A true CN107061426A (en) | 2017-08-18 |
| CN107061426B CN107061426B (en) | 2021-02-23 |
Family
ID=59595057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710481315.6A Active CN107061426B (en) | 2017-06-22 | 2017-06-22 | Oil liquid filtering device and hydraulic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061426B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6786085B1 (en) * | 1999-03-12 | 2004-09-07 | Bayerische Motoren Werke Aktiengesellschaft | Fuel supply system for a motor vehicle |
| CN101533003A (en) * | 2009-04-09 | 2009-09-16 | 西安建筑科技大学 | Device for monitoring oil contamination |
| CN101614225A (en) * | 2009-07-07 | 2009-12-30 | 中国矿业大学 | Emulsion power pack is unloading and self-cleaning filter device automatically |
| CN201963641U (en) * | 2011-03-14 | 2011-09-07 | 三一重型综采成套装备有限公司 | On-line automatic backwash filter |
| CN202441674U (en) * | 2012-02-01 | 2012-09-19 | 三一重型综采成套装备有限公司 | Automatic back washing filter station |
| CN203835867U (en) * | 2014-04-18 | 2014-09-17 | 徐宁 | Hydraulic filter element back washing device |
| CN205190902U (en) * | 2015-12-07 | 2016-04-27 | 常州市康士达机电有限公司 | Magenetic exchange valve's case |
-
2017
- 2017-06-22 CN CN201710481315.6A patent/CN107061426B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6786085B1 (en) * | 1999-03-12 | 2004-09-07 | Bayerische Motoren Werke Aktiengesellschaft | Fuel supply system for a motor vehicle |
| CN101533003A (en) * | 2009-04-09 | 2009-09-16 | 西安建筑科技大学 | Device for monitoring oil contamination |
| CN101614225A (en) * | 2009-07-07 | 2009-12-30 | 中国矿业大学 | Emulsion power pack is unloading and self-cleaning filter device automatically |
| CN201963641U (en) * | 2011-03-14 | 2011-09-07 | 三一重型综采成套装备有限公司 | On-line automatic backwash filter |
| CN202441674U (en) * | 2012-02-01 | 2012-09-19 | 三一重型综采成套装备有限公司 | Automatic back washing filter station |
| CN203835867U (en) * | 2014-04-18 | 2014-09-17 | 徐宁 | Hydraulic filter element back washing device |
| CN205190902U (en) * | 2015-12-07 | 2016-04-27 | 常州市康士达机电有限公司 | Magenetic exchange valve's case |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107061426B (en) | 2021-02-23 |
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