CN110872963A - Device for separating lubricating oil dirt of internal combustion engine - Google Patents
Device for separating lubricating oil dirt of internal combustion engine Download PDFInfo
- Publication number
- CN110872963A CN110872963A CN201810996767.2A CN201810996767A CN110872963A CN 110872963 A CN110872963 A CN 110872963A CN 201810996767 A CN201810996767 A CN 201810996767A CN 110872963 A CN110872963 A CN 110872963A
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- cover
- spiral
- lubricating oil
- centrifugal separator
- internal combustion
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 24
- 239000000356 contaminant Substances 0.000 claims abstract description 7
- 230000001050 lubricating effect Effects 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035485 pulse pressure Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Centrifugal Separators (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a device for separating lubricating oil contaminants from an internal combustion engine, comprising a filter insert in the lower part, a rotor centrifugal separator which is driven by the lubricating oil flowing through and is arranged on the upper part of the filter insert, wherein the rotor centrifugal separator and the filter insert are arranged one above the other in a common, two-part housing which is closed during operation of the device and which consists of a removable screw top and a fixed bottom housing, wherein a screw bottom is arranged in the bottom housing between the rotor centrifugal separator and the filter insert, wherein the screw bottom divides the device into an upper and a lower closed chamber, and the screw top and the screw bottom are in threaded connection with the bottom housing independently of one another. This device spiral upper cover and spiral lower cover form mutually independent airtight space, do not have complicated meshing structure between the two, and the structure is simple and easy firm, and parts production and processing cost is lower, and the high-voltage pulse that the airtight cavity in spiral lower cover below produced can not transmit for the spiral upper cover, and work is more stable.
Description
Technical Field
The invention relates to the technical field of internal combustion engines, in particular to a device for separating lubricating oil dirt of an internal combustion engine.
Background
At present, many filtering and separating module devices applied to a lubricating system of an internal combustion engine aim to save layout space of engine accessories as much as possible, and the module device form integrating a centrifugal rotor filter and a filter element filter is divided into two cavities which are independently connected in parallel on a large shell and an upper cavity and a lower cavity which are coaxially connected in series in the large shell, and the coaxial series arrangement mode has advantages in space volume and maintenance assembly and maintenance.
Chinese patent CN1835785A discloses a device for separating dirt from the lubricating oil of an internal combustion engine, wherein the device has a filter cartridge at the lower part and a centrifugal separator located thereon with a rotor driven by the lubricating oil flowing through, wherein the filter cartridge and the centrifugal separator are arranged one above the other in a common, two-part housing closed during operation of the device, which housing consists of a removable upper screw cover and a fixed lower housing, wherein a removable partition cover is arranged in the housing between the filter cartridge and the centrifugal separator, the partition cover and the filter cartridge can be removed from the housing in their open state. In addition, it is provided for the device that the screw cap and the separating cap have a detachable connection which can be engaged with one another for transmitting axial tensile or compressive forces.
Chinese patent CN106795784A discloses a device for removing impurities from lubricating oil of an internal combustion engine, wherein the device has a filter element at the lower part in its operating state and a centrifugal separator with a rotatably driven rotor on the upper part, wherein the filter element and the centrifugal separator are arranged one above the other in a common two-part housing which is closed in operation of the device and has a detachable upper cover and a fixed lower housing part, wherein a removable partition plate which is inserted in a sealing manner is arranged in the housing between the filter element and the centrifugal separator and separates a lower filter chamber which is under lubricating oil pressure in operation of the device from an upper centrifugal separator chamber which is free of pressure, wherein the partition plate is supported radially on the outside at the cover in the case of the closed cover, wherein a rotor shaft which rotatably carries the rotor is mounted with its lower end in or at the partition plate, and wherein the rotor, the separating plate with the rotor shaft and the filter cartridge can be removed from the housing in the case of an open cover. The device according to the invention is characterized in that the cover has a support surface at its center on the inside and in the case of a closed cover the rotor shaft is axially supported with its upper end at the support surface at the cover.
The existing device utilizes a spiral cover and a separation cover to be meshed with each other, a detachable connecting mechanism is used for transmitting axial tension or axial tension, the existing device has a relatively complex meshed structure, the size control of the spiral cover and the separation cover needs high precision, in the working state, and a cavity below the separation cover simultaneously limits the rotor centrifugal separator to rotate around a shaft under the conditions of high-pressure pulse and high temperature when working, various pulse pressures and radial centrifugal forces can be transmitted to threads of the spiral cover, and the spiral cover simultaneously needs to bear the axial tension and the radial centrifugal force generated when the rotor centrifugal separator rotates, so that the independent or dual-structure failure of the separation cover and the spiral cover is easily caused. When the maintenance is carried out, the screw cover and the partition plate utilize the meshing structure to simultaneously bring the rotor centrifugal separator and the filter element out, the meshing structure simultaneously has a fracture risk, and finally, an engine lubricating system is failed, and unnecessary loss is caused.
Disclosure of Invention
The invention aims to solve the problems and provide a device for separating lubricating oil dirt of an internal combustion engine.
The purpose of the invention is realized by the following technical scheme:
a device for separating contaminants from lubricating oil of an internal combustion engine, having a filter insert in the lower part and a rotor centrifugal separator driven by the lubricating oil flowing through the filter insert in the upper part, wherein the rotor centrifugal separator and the filter insert are arranged one above the other in a common, closed, two-part housing during operation of the device, which housing consists of a removable screw top and a fixed bottom housing, wherein a screw bottom is arranged in the bottom housing between the rotor centrifugal separator and the filter insert, wherein the screw bottom divides the device into an upper and a lower closed chamber, and wherein the screw top and the screw bottom are in threaded connection with the bottom housing independently of one another. Because the spiral upper cover and the spiral lower cover are respectively independent and are in threaded connection with the lower shell, the spiral upper cover and the spiral lower cover form mutually independent closed spaces, no complex meshing structure exists between the spiral upper cover and the spiral lower cover, the stability of the structure is ensured, and high-voltage pulses generated by a closed cavity below the spiral lower cover cannot be transmitted to the spiral upper cover, so that the rotor centrifugal separator is more stable in working.
Furthermore, the upper end of the rotor centrifugal separator is connected with the spiral upper cover through an upper cover bearing assembly, the lower end of the rotor centrifugal separator is connected with the spiral lower cover through a lower cover bearing assembly, and the rotor centrifugal separator rotates around an axis formed by the upper cover bearing assembly and the lower cover bearing assembly.
Furthermore, the upper cover bearing assembly is fixedly connected with the spiral upper cover through a buckle, and the lower cover bearing assembly is connected with the spiral lower cover through threads.
Further, the spiral upper cover is internally provided with a guide rib for mounting the rotor centrifugal separator.
Further, the spiral upper cover and the lower shell and the spiral lower cover and the lower shell are provided with sealing rings at threaded connection positions.
Further, the filter cartridge and the screw lower cover are connected by a detachable connection mechanism.
Furthermore, the spiral upper cover and the spiral lower cover are in a bell-jar shape, and the upper part of the spiral lower cover is provided with an anti-slip groove, so that the spiral upper cover and the spiral lower cover can be prevented from falling off when the spiral lower cover assembly is taken out, and the falling damage is caused.
Furthermore, a flow channel for communicating the upper closed cavity and the lower closed cavity is arranged in the middle of the spiral lower cover, and an adjustable valve group opening assembly is arranged in the flow channel.
Further, the valve group opening assembly comprises a pressure regulating valve body and a pressure regulating spring connected with the pressure regulating valve body, the outer end of the pressure regulating spring is limited by a limiting plug, when the pressure of lubricating liquid in the lower closed cavity is greater than the opening pressure of the valve group opening assembly, the upper closed cavity and the lower closed cavity are communicated, and the lubricating liquid at the lower part enters the upper rotor centrifugal separator.
Furthermore, the lower part of the rotor centrifugal separator is provided with a nozzle for spraying filtered lubricating oil, and the lower shell is internally provided with a return channel for recovering the filtered lubricating oil.
Further, the outer hexagonal geometric dimension of the upper spiral cover and the lower spiral cover is the same, the upper spiral cover and the lower spiral cover can be conveniently disassembled and assembled by using the same type of sleeve, and the maintenance is more convenient.
The specific working principle of the device is as follows:
the upper spiral cover and the lower spiral cover are respectively and independently in threaded connection with the lower shell, the device is divided into an upper closed cavity and a lower closed cavity, the rotor centrifugal separator and the filter core are respectively arranged in the upper closed cavity and the lower closed cavity, and particles of lubricating liquid of a lubricating system of the internal combustion engine are filtered and separated. Lubricating liquid enters the shell from the outside, passes through the filter cartridge to complete particle filtration, and then flows into the middle flow passage to enter the main flow passage of the internal combustion engine. The lower end of the rotor centrifugal separator is inserted into a lower cover bearing assembly, a spiral upper cover is gradually screwed into a lower shell through threads, the rotor centrifugal separator passes through a guide rib in the spiral upper cover, the upper end of the rotor centrifugal separator is gradually inserted into the upper cover bearing assembly, so that an upper sealed cavity is formed, when the pressure of lubricating liquid in the lower sealed cavity is greater than the opening pressure of a valve bank consisting of a pressure regulating valve body and a pressure regulating spring, the upper sealed cavity and the lower sealed cavity flow to be opened, the lubricating liquid can upwards enter the rotor centrifugal separator through a flow channel in the spiral lower cover, particles in the lubricating liquid are separated from the lubricating liquid under the centrifugal action of the rotor centrifugal separator and are adhered to the side wall of an inner cavity of the rotor centrifugal separator 4, the lubricating liquid after the particles are separated is sprayed out from a nozzle at the bottom of the lubricating liquid to form a reaction force, and the rotor centrifugal separator is driven to rotate around an axis formed by the upper cover bearing, finally, the sprayed lubricating liquid flows to a return channel of the lower shell to finish the filtering process.
Compared with the prior art, the invention has the advantages that:
1. the spiral upper cover and the spiral lower cover are in threaded connection with the shell respectively, mutually independent closed spaces are formed between the spiral upper cover and the spiral lower cover, no complex meshing structure exists between the spiral upper cover and the spiral lower cover, the spiral upper cover and the spiral lower cover are in threaded connection with the shell respectively, the structure is simple and stable, the production and processing cost of parts is relatively low, high-voltage pulses generated by a closed cavity below the spiral lower cover cannot be transmitted to the spiral upper cover, and the rotor centrifugal separator is stable in working.
2. When the spiral upper cover is disassembled, the rotor centrifugal separator can be independently replaced without rotating and taking out the spiral lower cover and the filter element assembly together, so that the disassembling and assembling space is saved.
3. The outer hexagonal geometric dimension of spiral upper cover and spiral lower cover is the same, can use same model sleeve can make things convenient for dismouting spiral upper cover and spiral lower cover, and it is more convenient to maintain.
4. The upper region of the spiral lower cover is provided with an anti-slip groove, so that the spiral lower cover assembly is prevented from falling off when being taken out, and the falling damage is caused.
5. The corresponding pressure regulating spring can be selected according to the pressure of the engine lubricating system and the requirements of customers, and the opening pressure of the rotor centrifugal separator is regulated, so that the oil pressure of each lubricating point in the internal combustion engine lubricating system is guaranteed.
6. The rotor centrifugal separator can be selected, and according to requirements, the module device with the filtering function can be formed only by replacing the spiral lower cover and removing the spiral upper cover and the rotor centrifugal separator.
Drawings
FIG. 1 is a schematic view of a part of the structure of the apparatus of the present invention;
FIG. 2 is a schematic structural view of the device of the present invention in a state where the screw top cover is separated from the lower housing;
FIG. 3 is a schematic view of the construction of the centrifugal separator without the rotor of the apparatus of the present invention;
FIG. 4 is a schematic view of the device of the present invention with a filter cartridge alone;
in the figure: 1-an upper cover bearing assembly; 2-a spiral upper cover; 3-a rotor centrifugal separator; 4-a lower cover bearing assembly; 5-limiting plug; 6-pressure regulating spring; 7-a pressure regulating valve body; 8-a filter cartridge; 9-a spiral lower cover; 10-anti-slip grooves; 11-a lower housing; 12-a nozzle; 13-a return channel; 14-guide ribs.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
A device for separating dirt from lubricating oil of an internal combustion engine, which device, with reference to Figs. 1 to 3, is provided with a filter cartridge 8 in the lower part, and on the upper part of the filter cartridge 8 is provided a rotor centrifugal separator 3 which is driven by the lubricating oil flowing through, the rotor centrifugal separator 3 and the filter cartridge 8 being arranged one above the other in a common, two-part housing which is closed during operation of the device, the shell consists of a detachable spiral upper cover 2 and a fixed lower shell 11, a spiral lower cover 9 is arranged between a rotor centrifugal separator 3 and a filter core 8 in the lower shell 11, the spiral lower cover 9 divides the device into an upper closed cavity and a lower closed cavity, the filter core 8 is positioned in the lower closed cavity, the rotor centrifugal separator 3 is positioned in the upper closed cavity, and the filter core 8 and the spiral lower cover 9 are connected through a detachable connecting mechanism, so that the disassembly is convenient.
In order to solve the problems that the meshing structure of the screw cap and the separating cap is relatively complex, the size control of the screw cap and the separating cap needs high precision, and the separating cap and the screw cap are independent or have dual structure failure easily during working, the device adopts the mode that the screw upper cap 2 and the screw lower cap 9 are respectively and independently connected with the lower shell 11 through threads. The spiral upper cover 2 and the spiral lower cover 9 are respectively independent and are in threaded connection with the lower shell 11, mutually independent closed spaces are formed, a complex meshing structure is avoided, the stability of the structure is guaranteed, high-voltage pulses generated by a closed cavity below the spiral lower cover 9 cannot be transmitted to the spiral upper cover 2, and therefore the rotor centrifugal separator is stable in working.
Furthermore, in the device, the upper end of the rotor centrifugal separator 3 is connected with the spiral upper cover 2 through the upper cover bearing assembly 1, the lower end of the rotor centrifugal separator 3 is connected with the spiral lower cover 9 through the lower cover bearing assembly 4, the rotor centrifugal separator 3 rotates around the axis formed by the upper cover bearing assembly 1 and the lower cover bearing assembly 4, and the upper cover bearing assembly 1 and the lower cover bearing assembly 4 can be arranged by adopting a bearing structure commonly used in the field. Upper cover bearing assembly 1 and spiral upper cover 2 adopt buckle fixed connection, convenient dismantlement, and lower cover bearing assembly 4 adopts threaded connection with spiral lower cover 9.
For a firm mounting, the screw top cover 2 is provided internally with guide ribs 14 for mounting the rotor centrifugal separator 3, which can play a role in stabilizing the operation during operation. In order to ensure good sealing performance, the spiral upper cover 2 and the lower shell 11 and the spiral lower cover 9 and the lower shell 11 are provided with sealing rings at threaded connection positions.
The spiral upper cover 2 and the spiral lower cover 9 are in a bell-jar shape, and the upper part of the spiral lower cover 9 is provided with an anti-slip groove 10, so that the falling-off and the falling-off damage can be prevented when the spiral lower cover assembly is taken out.
The upper and lower seal cavities of the device can be communicated with each other to increase the filtering treatment capacity of the device. The middle of the spiral lower cover 9 is provided with a flow channel, an adjustable valve group opening assembly is arranged in the flow channel, the valve group opening assembly comprises a pressure regulating valve body 7 and a pressure regulating spring 6 connected with the pressure regulating valve body 7, the outer end of the pressure regulating spring 6 is limited by a limiting plug 5, when the pressure of lubricating liquid in the lower closed cavity is greater than the opening pressure of the valve group opening assembly, the pressure regulating valve body 7 moves rightwards, the channel is opened, the upper closed cavity and the lower closed cavity are communicated, the lower lubricating liquid enters the upper rotor centrifugal separator 3, and lubricating oil treatment is carried out through the rotor centrifugal separator 3. The lower part of the rotor centrifugal separator 3 is provided with a nozzle 12 for spraying filtered lubricating oil, the nozzle 12 sprays oil and drives the rotor centrifugal separator 3 to rotate, a return channel 13 for recovering the filtered lubricating oil is arranged in the lower shell 11, and clean oil flows into the engine.
In addition, the rotor centrifugal separator can be optionally installed, and according to requirements, the module device with the filtering function can be formed by only replacing the spiral lower cover 9 and removing the spiral upper cover 2 and the rotor centrifugal separator 3, as shown in fig. 4.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A device for separating dirt from lubricating oil of an internal combustion engine, which device is provided with a filter cartridge (8) in the lower part, and a rotor centrifugal separator (3) which is driven by the lubricating oil flowing through and is located in the upper part of the filter cartridge (8), the rotor centrifugal separator (3) and the filter cartridge (8) are arranged one above the other in a common, two-part housing which is closed during operation of the device, the housing is composed of a removable screw top (2) and a fixed bottom shell (11), a spiral lower cover (9) is arranged between the rotor centrifugal separator (3) and the filter core (8) in the lower shell (11), the spiral lower cover (9) divides the device into an upper closed cavity and a lower closed cavity, the screw top cover (2) and the screw bottom cover (9) are respectively and independently connected with the lower shell (11) through threads.
2. A device for separating contaminants of lubricating oil of an internal combustion engine according to claim 1, characterized in that the upper end of the rotor centrifugal separator (3) is connected to the screw top cover (2) by a top cover bearing assembly (1), the lower end of the rotor centrifugal separator (3) is connected to the screw bottom cover (9) by a bottom cover bearing assembly (4), and the rotor centrifugal separator (3) rotates around the axis formed by the top cover bearing assembly (1) and the bottom cover bearing assembly (4).
3. The device for separating lubricating oil dirt of an internal combustion engine is characterized in that the upper cover bearing assembly (1) is fixedly connected with the spiral upper cover (2) in a buckling mode, and the lower cover bearing assembly (4) is connected with the spiral lower cover (9) in a threaded mode.
4. A device for separating contaminants of lubricating oil of an internal combustion engine according to claim 1, characterized in that the screw top cover (2) is provided internally with guide ribs (14) for mounting the rotor centrifugal separator (3).
5. A device for separating contaminants of lubricating oil of an internal combustion engine according to claim 1, characterized in that the screw top cover (2) and the lower housing (11) and the screw bottom cover (9) and the lower housing (11) are provided with sealing rings at the threaded connection.
6. A device for separating contaminants of lubricating oil of an internal combustion engine according to claim 1, characterized in that the filter cartridge (8) and the screw bottom cover (9) are connected by means of a detachable connection.
7. The device for separating the lubricating oil dirt of the internal combustion engine according to the claim 1 is characterized in that the spiral upper cover (2) and the spiral lower cover (9) are in a bell-jar shape, and the upper part of the spiral lower cover (9) is provided with an anti-skid groove (10).
8. The device for separating the lubricating oil dirt of the internal combustion engine is characterized in that a flow passage for communicating the upper closed cavity and the lower closed cavity is arranged in the middle of the spiral lower cover (9), and an adjustable valve group opening assembly is arranged in the flow passage.
9. The device for separating lubricating oil dirt of the internal combustion engine according to claim 8, wherein the valve group opening assembly comprises a pressure regulating valve body (7) and a pressure regulating spring (6) connected with the pressure regulating valve body (7), the outer end of the pressure regulating spring (6) is limited by a limiting plug (5), when the pressure of lubricating liquid in the lower closed cavity is greater than the opening pressure of the valve group opening assembly, the upper closed cavity is communicated with the lower closed cavity, and the lower lubricating liquid enters the upper rotor centrifugal separator (3).
10. A device for separating contaminants of lubricating oil for internal combustion engines according to claim 1, characterized in that the rotor centrifugal separator (3) is provided in its lower part with nozzles (12) for spraying out filtered lubricating oil after filtration, and in that the lower casing (11) is provided with a return channel (13) for recovering the filtered lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996767.2A CN110872963A (en) | 2018-08-29 | 2018-08-29 | Device for separating lubricating oil dirt of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996767.2A CN110872963A (en) | 2018-08-29 | 2018-08-29 | Device for separating lubricating oil dirt of internal combustion engine |
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| Publication Number | Publication Date |
|---|---|
| CN110872963A true CN110872963A (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810996767.2A Pending CN110872963A (en) | 2018-08-29 | 2018-08-29 | Device for separating lubricating oil dirt of internal combustion engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN110872963A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990011616A (en) * | 1997-07-24 | 1999-02-18 | 구종철 | Oil filter |
| CN1835785A (en) * | 2003-08-13 | 2006-09-20 | 亨格斯特两合公司 | Device for eliminating impurities from the lubricating oil of an internal combustion engine |
| CN1908392A (en) * | 2006-08-18 | 2007-02-07 | 赵新房 | Electromagnetic type oil filter for internal combustion engine |
| CN103075227A (en) * | 2013-01-25 | 2013-05-01 | 杭州电子科技大学 | Machine oil filter |
| CN208870668U (en) * | 2018-08-29 | 2019-05-17 | 曼胡默尔滤清器（上海）有限公司 | It is a kind of for separating the device of IC engine lubricating oil dirt |
-
2018
- 2018-08-29 CN CN201810996767.2A patent/CN110872963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990011616A (en) * | 1997-07-24 | 1999-02-18 | 구종철 | Oil filter |
| CN1835785A (en) * | 2003-08-13 | 2006-09-20 | 亨格斯特两合公司 | Device for eliminating impurities from the lubricating oil of an internal combustion engine |
| CN1908392A (en) * | 2006-08-18 | 2007-02-07 | 赵新房 | Electromagnetic type oil filter for internal combustion engine |
| CN103075227A (en) * | 2013-01-25 | 2013-05-01 | 杭州电子科技大学 | Machine oil filter |
| CN208870668U (en) * | 2018-08-29 | 2019-05-17 | 曼胡默尔滤清器（上海）有限公司 | It is a kind of for separating the device of IC engine lubricating oil dirt |
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