CN217854865U - Back-flushing centrifugal filter and centrifugal filtering system - Google Patents
Back-flushing centrifugal filter and centrifugal filtering system Download PDFInfo
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- CN217854865U CN217854865U CN202220829514.8U CN202220829514U CN217854865U CN 217854865 U CN217854865 U CN 217854865U CN 202220829514 U CN202220829514 U CN 202220829514U CN 217854865 U CN217854865 U CN 217854865U
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Abstract
The utility model discloses a back flush centrifugal filter and centrifugal filtration system, centrifugal filter includes: the rotor comprises a shell, a rotor shaft and a filter element; the shell is provided with an engine oil inlet, an engine oil outlet, a cleaning oil inlet and a residual oil outlet, and the engine oil inlet, the engine oil outlet and the residual oil outlet are communicated with the inner cavity of the shell; the rotor shaft is rotatably arranged in the shell, the filter element is fixed on the rotor shaft, the rotor shaft is provided with a shaft cleaning oil duct communicated with the cleaning oil inlet, the rotor shaft is provided with an engine oil ejector communicated with the shaft cleaning oil duct, and the engine oil ejector is positioned in the filter element. Not only need not pull down among the filter core cleaning process, can filter back oil pressure before oil pressure sensor can real-time supervision moreover, when the setting value that the oil pressure arrived, the self-cleaning filter core, degree of automation is high, and it is convenient to wash.
Description
Technical Field
The utility model relates to a filter technical field, specific theory relates to a back flush centrifugal filter and back flush system.
Background
The centrifugal filter is a filter frequently adopted in engine oil filtration, the existing centrifugal filter cannot directly clean a filter element, and the filter element must be detached to be cleaned, so that the cleaning is inconvenient.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough, the utility model discloses the first technical problem that will solve is: provides a backwash centrifugal filter, which does not need to be detached when cleaning a filter element. Based on the same inventive concept, the second technical problem to be solved by the present invention is: a centrifugal filtration system is provided that is capable of automatically cleaning a filter element.
For solving the first technical problem, the technical scheme of the utility model is that:
a backflush centrifugal filter comprising: the filter comprises a shell, a rotor shaft and a filter element;
the shell is provided with an engine oil inlet, an engine oil outlet, a cleaning oil inlet and a residual oil outlet, and the engine oil inlet, the engine oil outlet and the residual oil outlet are communicated with an inner cavity of the shell;
the rotor shaft is rotatably arranged in the shell, the filter element is fixed on the rotor shaft, the rotor shaft is provided with a shaft cleaning oil channel communicated with the cleaning oil inlet, the rotor shaft is provided with an engine oil ejector communicated with the shaft cleaning oil channel, and the engine oil ejector is positioned in the filter element.
Preferably, the rotor shaft is provided with two of the oil injectors.
Preferably, the housing comprises a housing body, an oil end cover fixed at one end of the housing body, and a cleaning oil end cover fixed at the other end of the housing body;
the rotor shaft is rotatably arranged between the engine oil end cover and the cleaning oil end cover;
the engine oil inlet, the residual oil outlet and the engine oil outlet are arranged on the engine oil end cover;
the cleaning oil inlet is arranged on the cleaning oil end cover.
Preferably, the engine oil inlet is communicated with the inner cavity of the housing through an engine oil inlet oil duct, the residual oil outlet is communicated with the inner cavity of the housing through a residual oil duct, the engine oil inlet oil duct and the residual oil duct are arranged on the engine oil end cover, the cleaning oil inlet is communicated with the shaft cleaning oil duct through a cover cleaning oil duct, and the cover cleaning oil duct is arranged on the cleaning oil end cover.
Preferably, the oil inlet oil passage and the residual oil passage are partially overlapped.
Preferably, an engine oil plug is fixed on the engine oil end cover, a cleaning oil plug is fixed on the cleaning oil end cover, the cleaning oil plug is provided with a plug cleaning oil passage for communicating the cover cleaning oil passage and the shaft cleaning oil passage, and the rotor shaft is rotatably installed between the engine oil plug and the cleaning oil plug.
In order to solve the second technical problem, the technical solution of the present invention is:
a centrifugal filtration system comprising: in the backwashing centrifugal filter, the engine oil inlet is communicated with an engine oil inlet oil way, the engine oil inlet oil way is provided with a one-way valve, the engine oil outlet is communicated with an engine oil outlet oil way, the engine oil outlet oil way is provided with an oil outlet electrically operated valve, the cleaning oil inlet is communicated with a cleaning oil inlet oil way, the cleaning oil inlet oil way is provided with a cleaning oil electrically operated valve, the residual oil outlet is communicated with a residual oil outlet oil way, the residual oil outlet oil way is provided with a residual oil electrically operated valve, and the oil outlet electrically operated valve, the cleaning oil electrically operated valve and the residual oil electrically operated valve are respectively and electrically connected with the controller.
Preferably, the engine oil inlet path is provided with an oil inlet oil pressure sensor, the engine oil outlet path is provided with an oil outlet oil pressure sensor, and the oil inlet oil pressure sensor and the oil outlet oil pressure sensor are respectively electrically connected with the controller.
Preferably, the machine oil inlet oil path is connected with a lubricating system of the engine, and the cleaning oil inlet oil path is connected with a machine oil tank of the engine.
And an oil pump is arranged on the cleaning oil inlet oil path.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
during the back flush filter core, need not to pull down the filter core, clean machine oil gets into the machine oil sprayer through wasing oil inlet, axle washing oil duct and axle oil-out in order, and the reaction force drive rotor shaft that produces when machine oil sprayer sprays machine oil and the filter core is high-speed rotatory for adnexed impurity is thrown away in centrifugal force effect west on the filter core outer wall, reaches the purpose of wasing the filter core, and need not pull down the filter core in the cleaning process, and it is convenient to wash.
Drawings
FIG. 1 is a schematic view of the centrifugal filtration system of the present invention filtering engine oil;
FIG. 2 is a schematic view of the centrifugal filter system of the present invention during cleaning of the filter element;
in the figure: 1. a housing body; 2. cleaning an oil end cover; 21. cleaning an oil inlet; 22. a cover cleaning oil passage; 3. An engine oil end cover; 31. an engine oil inlet; 32. an engine oil outlet; 33. a residual oil outlet; 34. an engine oil inlet duct; 35. a residual oil gallery; 4. a rotor shaft; 41. a shaft cleaning oil passage; 5. a filter element; 6. an engine oil injector; 7. plugging the engine oil; 8. cleaning an oil plug; 81. cleaning the oil duct by using the plug; 9. an oil inlet oil pressure sensor; 10. and an oil outlet pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1 and 2 together, a backflush centrifugal filter comprising: a housing, a rotor shaft 4 and a filter element 5;
the shell is provided with an engine oil inlet 31, an engine oil outlet 32, a cleaning oil inlet 21 and a residual oil outlet 33, and the engine oil inlet 31, the engine oil outlet 32 and the residual oil outlet 33 are communicated with the inner cavity of the shell;
the rotor shaft 4 is rotatably installed in the shell, the filter element 5 is fixed on the rotor shaft 4, the rotor shaft 4 is provided with a shaft cleaning oil channel 41 communicated with the cleaning oil inlet 21, the rotor shaft 4 is provided with an engine oil ejector 6 communicated with the shaft cleaning oil channel 41, and the engine oil ejector 6 is located in the filter element 5.
Preferably, in this embodiment, the rotor shaft 4 is provided with two engine oil injectors 6, and the two engine oil injectors 6 inject engine oil at the same time, so that the generated reaction force is large, the rotating speed of the rotor shaft 4 is higher, and the impurity removal effect is good. The engine oil injector 6 includes two centrosymmetric oil nozzles, and the reaction force generated when the engine oil is sprayed from the two oil nozzles drives the rotor shaft 4 and the filter element 5 to rotate.
The shell comprises a shell body 1, an engine oil end cover 3 fixed at one end of the shell body 1 and a cleaning oil end cover 2 fixed at the other end of the shell body 1;
the rotor shaft 4 is rotatably arranged between the engine oil end cover 3 and the cleaning oil end cover 2;
the engine oil inlet 31, the residual oil outlet 33 and the engine oil outlet 32 are arranged on the engine oil end cover 3;
the cleaning oil inlet 21 is arranged on the cleaning oil end cover 2.
The engine oil inlet 31 is communicated with the inner cavity of the shell through an engine oil inlet oil passage 34, the residual oil outlet 33 is communicated with the inner cavity of the shell through a residual oil passage 35, the engine oil inlet oil passage 34 and the residual oil passage 35 are respectively arranged on the engine oil end cover 3, the cleaning oil inlet 21 is communicated with the shaft cleaning oil passage 41 through a cover cleaning oil passage 22, and the cover cleaning oil passage 22 is arranged on the cleaning oil end cover 2. Preferably, in the embodiment, the engine oil inlet oil passage 34 and the residual oil passage 35 are partially overlapped, so that the processing procedures are reduced, and the production cost is low.
An engine oil plug 7 is fixed on the engine oil end cover 3, a cleaning oil plug 8 is fixed on the cleaning oil end cover 2, the cleaning oil plug 8 is provided with a plug cleaning oil passage 81 which is communicated with the cover cleaning oil passage 22 and the shaft cleaning oil passage 41, and the rotor shaft 4 is rotatably installed between the engine oil plug 7 and the cleaning oil plug 8.
Example two
A centrifugal filtration system comprising: in the backwashing centrifugal filter, the engine oil inlet 31 is communicated with an engine oil inlet oil path, the engine oil inlet oil path is provided with a one-way valve, the engine oil outlet 32 is communicated with an engine oil outlet oil path, the engine oil outlet oil path is provided with an oil outlet electric valve, the cleaning oil inlet 21 is communicated with a cleaning oil inlet oil path, the cleaning oil inlet oil path is provided with a cleaning oil electric valve, the residual oil outlet 33 is communicated with a residual oil outlet oil path, the residual oil outlet oil path is provided with a residual oil electric valve, and the oil outlet electric valve, the cleaning oil electric valve and the residual oil electric valve are respectively and electrically connected with the controller.
The machine oil inlet oil circuit is provided with an oil inlet oil pressure sensor 9, the machine oil outlet oil circuit is provided with an oil outlet oil pressure sensor 10, and the oil inlet oil pressure sensor 9 and the oil outlet oil pressure sensor 10 are respectively electrically connected with the controller.
The engine oil inlet oil path is connected with a lubricating system of the engine, the cleaning oil inlet oil path is connected with an engine oil tank of the engine, the cleaning oil inlet oil path is provided with an oil pump, and the oil pump is electrically connected with the controller.
The oil outlet path of the residual oil is communicated with a dirty oil tank for collecting the residual oil.
The controller is preferably the ECU of the engine or a separate controller communicatively connected to the engine ECU.
When the engine oil is filtered, the oil outlet electric valve is opened, the engine oil in the engine lubricating system sequentially enters the inner cavity of the shell through the engine oil inlet oil way, the engine oil inlet 31 and the engine oil inlet oil way 34, enters the filter element 5 after permeating the filter element 5, clean engine oil flows out of the filter element 5 from the oil outlet at the bottom of the filter element 5, then flows into the engine oil return oil way through the engine oil outlet 32, and finally returns to the engine lubricating system.
In the machine oil filtering process, the oil inlet oil pressure sensor 9 monitors the oil pressure of the machine oil inlet oil way in real time, namely the oil pressure before filtration, and the oil outlet oil pressure sensor 10 monitors the oil pressure of the machine oil return oil way in real time, namely the oil pressure after filtration. When engine oil passes through the filter element 5, impurities are attached to the outer wall of the filter element 5, when the impurities are sufficiently accumulated, the pressure difference after pre-filtration is increased, when the pressure difference reaches a set value, the controller records, after the engine is stopped, the controller sends an instruction to close the oil outlet electric valve, open the cleaning oil electric valve and the residual oil electric valve, operate the oil pump, clean engine oil in the engine oil tank sequentially enters the two engine oil injectors 6 through the cleaning oil inlet oil way, the cleaning oil inlet 21, the cover cleaning oil way 22, the plug cleaning oil way 81 and the shaft cleaning oil way 41, the engine oil injectors 6 inject the engine oil to enable the rotor shaft 4 and the filter element 5 to rotate at a high speed, on one hand, the impurities on the filter element 5 are thrown out under the action of centrifugal force, on the other hand, the separated impurities are flushed to the residual oil outlet 33 by the engine oil and finally flow into the dirty oil tank.
To sum up, not only need not pull down in the 5 cleaning process of filter core, can filter back oil pressure before oil pressure sensor can real-time supervision moreover, when the setting value that the oil pressure arrived, the self-cleaning filter core, degree of automation is high, and it is convenient to wash.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (10)
1. A backwash centrifugal filter, comprising: the rotor comprises a shell, a rotor shaft and a filter element;
the shell is provided with an engine oil inlet, an engine oil outlet, a cleaning oil inlet and a residual oil outlet, and the engine oil inlet, the engine oil outlet and the residual oil outlet are communicated with an inner cavity of the shell;
the rotor shaft is rotatably arranged in the shell, the filter element is fixed on the rotor shaft, the rotor shaft is provided with a shaft cleaning oil channel communicated with the cleaning oil inlet, the rotor shaft is provided with an engine oil ejector communicated with the shaft cleaning oil channel, and the engine oil ejector is positioned in the filter element.
2. The backflush centrifugal filter of claim 1 wherein said rotor shaft is provided with two of said oil jets.
3. The backflush centrifugal filter of claim 2, wherein the housing includes a housing body, an oil end cap secured to one end of the housing body, and a wash oil end cap secured to the other end of the housing body;
the rotor shaft is rotatably arranged between the engine oil end cover and the cleaning oil end cover;
the engine oil inlet, the residual oil outlet and the engine oil outlet are arranged on the engine oil end cover;
the cleaning oil inlet is arranged on the cleaning oil end cover.
4. The backwash centrifugal filter as defined in claim 3 wherein said oil inlet port communicates with the interior chamber of said housing through an oil inlet gallery, said residual oil outlet port communicates with the interior chamber of said housing through a residual oil gallery, said oil inlet gallery and said residual oil gallery being provided in said oil end cap, said wash oil inlet port communicates with said shaft wash oil gallery through a cap wash oil gallery, said cap wash oil gallery being provided in said wash oil end cap.
5. The backflushing centrifugal filter according to claim 4 wherein said oil inlet gallery and said residual oil gallery partially overlap.
6. The backwash centrifugal filter as defined in claim 5 wherein said oil end cap is fixed with an oil plug, said wash oil end cap is fixed with a wash oil plug, said wash oil plug is provided with a plug wash oil passage communicating said cap wash oil passage and said shaft wash oil passage, said rotor shaft is rotatably mounted between said oil plug and said wash oil plug.
7. A centrifugal filtration system, comprising: the backwash centrifugal filter as defined in any one of claims 1 to 6, wherein the oil inlet is connected to an oil inlet passage, the oil inlet passage is provided with a check valve, the oil outlet is connected to an oil outlet passage, the oil outlet passage is provided with an electrically operated oil outlet valve, the flushing oil inlet is connected to a flushing oil inlet passage, the flushing oil inlet passage is provided with an electrically operated oil valve, the residual oil outlet is connected to a residual oil outlet passage, the residual oil outlet passage is provided with an electrically operated residual oil valve, and the electrically operated oil outlet valve, the electrically operated flushing oil valve and the electrically operated residual oil valve are electrically connected to the controller respectively.
8. The centrifugal filter system of claim 7, wherein the oil inlet path is provided with an oil inlet pressure sensor, the oil outlet path is provided with an oil outlet pressure sensor, and the oil inlet pressure sensor and the oil outlet pressure sensor are respectively electrically connected to the controller.
9. The centrifugal filtration system of claim 7, wherein the oil inlet passage is connected to a lubrication system of the engine, and the wash oil inlet passage is connected to a sump of the engine.
10. A centrifugal filter system according to claim 7, wherein the wash oil inlet circuit is provided with an oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220829514.8U CN217854865U (en) | 2022-04-11 | 2022-04-11 | Back-flushing centrifugal filter and centrifugal filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220829514.8U CN217854865U (en) | 2022-04-11 | 2022-04-11 | Back-flushing centrifugal filter and centrifugal filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217854865U true CN217854865U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220829514.8U Active CN217854865U (en) | 2022-04-11 | 2022-04-11 | Back-flushing centrifugal filter and centrifugal filtering system |
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| Country | Link |
|---|---|
| CN (1) | CN217854865U (en) |
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2022
- 2022-04-11 CN CN202220829514.8U patent/CN217854865U/en active Active
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