CN112628588A - Lubricating oil filtering device suitable for long-time work of turbofan engine - Google Patents
Lubricating oil filtering device suitable for long-time work of turbofan engine Download PDFInfo
- Publication number
- CN112628588A CN112628588A CN202011391724.5A CN202011391724A CN112628588A CN 112628588 A CN112628588 A CN 112628588A CN 202011391724 A CN202011391724 A CN 202011391724A CN 112628588 A CN112628588 A CN 112628588A
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- China
- Prior art keywords
- turbofan engine
- lubricating oil
- shell
- long
- pipe joint
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N2039/007—Using strainers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/02—Turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/08—Aircraft
Abstract
The invention discloses a lubricating oil filtering device suitable for a turbofan engine to work for a long time, which comprises: a filter element, a bypass valve, a pollution indicator, an outlet pipe joint, a shell and an inlet pipe joint; the filter element is arranged in the shell and used for filtering lubricating oil; one end of the shell is provided with a pollution indicator used for indicating the pollution degree of the filter element; the other end of the shell is used as an oil outlet, and an outlet pipe joint is arranged and used for connecting an outlet pipe; the side wall of the shell is provided with a bypass valve channel and an oil inlet which are respectively used for installing a bypass valve and an inlet pipe joint, wherein the bypass valve is used for pressure relief, and the inlet pipe joint is used for connecting an inlet pipe.
Description
Technical Field
The invention belongs to the technical field of aviation turbine engine lubricating systems, and particularly relates to a lubricating oil filtering device suitable for long-time work of a turbofan engine.
Background
The aviation turbine engine needs to arrange a lubricating oil filtering device at the outlet of a lubricating oil pressurization level of a lubricating system, and has the function of filtering the lubricating oil output by the lubricating oil pump pressurization level and then conveying the filtered lubricating oil to the lubricating part of the engine, so that the cleanness of the lubricating oil flowing through each oil nozzle in the lubricating system is ensured, and the requirement of the engine with long service life on the cleanliness of the lubricating oil is higher. As shown in fig. 1, a conventional oil filtering apparatus includes: a pipeline channel, a filter element 1 (comprising a filter screen and a framework for supporting the filter screen) and a bypass valve 2; the lubricating oil enters from the oil inlet, flows out from the oil outlet after impurities are filtered by the filter element 1, and flows out from the bypass valve 2 when the filter element 1 is blocked; the filter element 1 and the bypass valve 2 are connected in parallel between an oil inlet and an oil outlet of the lubricating oil filtering device through a pipeline channel. During long-term use, the conventional lubricating oil filtering device has the following problems, first: too low then can't guarantee engine life of filter fineness, too high then needs increase filter screen area and frequently washs or renew cartridge 1, the second: the pollution degree of the filter element 1 before the lubricating oil filtering device is not disassembled can not be judged, and the third is that: after the bypass valve 2 is opened, impurities bypass the filter element 1 and directly enter the oil nozzle from the oil outlet, and the service life of the engine is shortened. Therefore, the lubricating oil filtering device which has proper precision and can judge the cleaning degree of the filter element 1 before the bypass valve is opened (is beneficial to timely cleaning) is urgently needed to be developed.
Disclosure of Invention
In view of the above, the invention provides a lubricating oil filtering device suitable for a turbofan engine to work for a long time, which can improve the precision of a filter element, and can judge the pollution degree of the filter element before a bypass valve is opened under the condition that the filtering device is not decomposed, and can timely clean the filter element to improve the reliability of the engine.
The technical scheme of the invention is as follows: a lubricating oil filtering device suitable for a turbofan engine to work for a long time comprises: a filter element, a bypass valve, a pollution indicator, an outlet pipe joint, a shell and an inlet pipe joint;
the filter element is arranged in the shell and used for filtering lubricating oil; one end of the shell is provided with a pollution indicator used for indicating the pollution degree of the filter element; the other end of the shell is used as an oil outlet, and an outlet pipe joint is arranged and used for connecting an outlet pipe; the side wall of the shell is provided with a bypass valve channel and an oil inlet which are respectively used for installing a bypass valve and an inlet pipe joint, wherein the bypass valve is used for pressure relief, and the inlet pipe joint is used for connecting an inlet pipe.
Preferably, the housing comprises: an upper shell and a lower shell which are butted into a whole.
Preferably, the joint of the upper shell and the lower shell is sealed.
Preferably, the filtration precision of the filter element is set to a set value.
Preferably, the filter screen of the filter element is a nickel screen.
Preferably, the contamination indicator is provided with an alarm function, and the alarm function is turned off below 0 ℃ and turned on above 20 ℃.
Preferably, the shells are made of aluminum alloy.
Preferably, the surfaces of the housing are both subjected to a colorless anodization.
Preferably, the outlet pipe joint and the inlet pipe joint are both made of stainless steel.
Preferably, the surfaces of the outlet pipe joint and the inlet pipe joint are passivated.
Has the advantages that:
1. the lubricating oil filtering device is compact in structure, small in size and light in weight, can improve the precision of the filter element, can judge the pollution degree of the filter element before the bypass valve is opened under the condition that the filtering device is not decomposed, and can be cleaned in time to improve the reliability of an engine.
2. The specific arrangement of the shell in the lubricating oil filtering device enables the lubricating oil filtering device to be convenient to disassemble and assemble and clean.
Drawings
Fig. 1 is a schematic diagram of a prior art oil filter device.
FIG. 2 is a schematic view of the structure of the lubricating oil filtering device of the present invention.
Fig. 3 is a schematic diagram of the oil filter device of the present invention.
Wherein, 1-a filter element; 2-a bypass valve; 3-a contamination indicator; 4-outlet pipe joint; 5-an upper shell; 6-lower shell; 7-inlet pipe joint.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a lubricating oil filter equipment suitable for turbofan engine long-time work, can improve the filter core precision, simultaneously under the condition that does not decompose filter equipment, can judge the pollution degree of filter core before the by-pass valve is opened to in time wash and promote the engine reliability.
As shown in fig. 2, the oil filter device includes: a filter cartridge 1, a bypass valve 2, a contamination indicator 3, an outlet fitting 4, an upper housing 5, a lower housing 6, and an inlet fitting 7.
The connection relationship of the lubricating oil filtering device is as follows: one ends of the upper shell 5 and the lower shell 6 are butted to form a shell, and the butted position is sealed by a sealing ring; the filter element 1 is arranged in the shell and used for filtering lubricating oil; the other end of the lower shell 6 is provided with a pollution indicator 3 for indicating the pollution degree of the filter screen in the filter element 1; the other end of the upper shell 5 is used as an oil outlet, and an outlet pipe joint 4 is arranged and used for connecting an outlet pipe, so that the filtered lubricating oil is discharged to a nozzle; the side wall of the upper shell 5 is provided with a bypass valve channel and an oil inlet which are respectively used for installing a bypass valve 2 and an inlet pipe joint 7, wherein the bypass valve 2 is used for pressure relief, and the inlet pipe joint 7 is used for connecting an inlet pipe, so that lubricating oil needing to be filtered is introduced into the filter element 1.
The working principle of the lubricating oil filtering device is as follows: when the engine works normally, lubricating oil enters the upper shell 5 from the oil inlet, is filtered by the filter screen in the filter element 1 and flows out of the oil outlet to the nozzle; along with operating time's extension, impurity on the filter screen increases, leads to the flow resistance increase, and when the flow resistance reached setting value I, the piston assembly displacement among the pollution indicator 3, the indicator popped out under magnet steel magnetic force for instruct the pollution excessive, should wash filter core 1 this moment, if do not wash continuation use, when the flow resistance reached setting value II, bypass valve 2 opened, ensured that the engine can continue to work.
Further, according to the requirements of the supercharging capacity, the flow resistance and the service life of the supercharging stage of the engine, the filtering precision of the filter element 1 is set as a set value;
furthermore, a filter screen of the filter element 1 is a nickel screen, so that the filter element is convenient to clean;
further, the pollution indicator 3 is provided with an alarm function, the alarm function is closed below 0 ℃, and the alarm function is started above 20 ℃;
further, the upper shell 5 and the lower shell 6 both adopt aluminum alloy;
further, the surfaces of the upper case 5 and the lower case 6 are both subjected to colorless anodizing;
further, the outlet pipe joint 4 and the inlet pipe joint 7 are both made of stainless steel;
further, the surfaces of both the outlet pipe joint 4 and the inlet pipe joint 7 are passivated.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lubricating oil filtering device suitable for a turbofan engine to work for a long time is characterized by comprising: the device comprises a filter element (1), a bypass valve (2), a pollution indicator (3), an outlet pipe joint (4), a shell and an inlet pipe joint (7);
the filter element (1) is arranged in the shell and used for filtering lubricating oil; one end of the shell is provided with a pollution indicator (3) for indicating the pollution degree of the filter element (1); the other end of the shell is used as an oil outlet, and an outlet pipe joint (4) is arranged and used for connecting an outlet pipe; the side wall of the shell is provided with a bypass valve channel and an oil inlet which are respectively used for installing a bypass valve (2) and an inlet pipe joint (7), wherein the bypass valve (2) is used for pressure relief, and the inlet pipe joint (7) is used for connecting an inlet pipe.
2. A lubricating oil filter device adapted to be used in a turbofan engine operating for a long period of time according to claim 1 wherein the housing comprises: an upper shell (5) and a lower shell (6) which are butted into a whole.
3. The oil filter device for long-term operation of turbofan engine according to claim 2 wherein the upper casing (5) and lower casing (6) are sealed at their butt joints.
4. The oil filter device for a turbofan engine operating for a long time according to claim 1 wherein the filter fineness of the filter element (1) is set to a set value.
5. The lubricating oil filtering device for long-term operation of a turbofan engine according to claim 1 wherein the filter screen of the filter element (1) is nickel screen.
6. The lubricating oil filtering device for long-term operation of turbofan engine according to claim 1 wherein the pollution indicator (3) is provided with an alarm function, and the alarm function is turned off below 0 ℃ and turned on above 20 ℃.
7. A lubricating oil filter device adapted to be used in a turbofan engine operating over a long period of time according to claim 1 wherein the outer case is made of aluminum alloy.
8. The oil filter device for a turbofan engine operating for a long period of time according to claim 1 wherein the surface of the housing is colorless anodized.
9. The oil filter device for long-term operation of turbofan engine according to claim 1 wherein the outlet coupling (4) and the inlet coupling (7) are made of stainless steel.
10. The oil filter device for long-term operation of turbofan engine according to claim 1 wherein the surface of the outlet coupling (4) and the surface of the inlet coupling (7) are passivated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391724.5A CN112628588A (en) | 2020-12-02 | 2020-12-02 | Lubricating oil filtering device suitable for long-time work of turbofan engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391724.5A CN112628588A (en) | 2020-12-02 | 2020-12-02 | Lubricating oil filtering device suitable for long-time work of turbofan engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112628588A true CN112628588A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011391724.5A Pending CN112628588A (en) | 2020-12-02 | 2020-12-02 | Lubricating oil filtering device suitable for long-time work of turbofan engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112628588A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169468Y (en) * | 1992-06-17 | 1994-06-22 | 航空航天部第一一六厂 | Precision hydraulic filter |
| CN201218256Y (en) * | 2008-07-10 | 2009-04-08 | 西安建筑科技大学 | Oil liquid pollution monitoring and cleaning filter for hydraulic power system |
| CN202983388U (en) * | 2012-12-12 | 2013-06-12 | 新乡市天诚航空净化设备有限公司 | Pressure pipeline filter with fixed-time heating blow-down device |
| CN104763708A (en) * | 2015-04-03 | 2015-07-08 | 山东省聊城市中矿机械有限公司 | Pollution indicator |
| CN210979300U (en) * | 2019-10-29 | 2020-07-10 | 北京航峰科伟装备技术股份有限公司 | Lubricating oil filter |
-
2020
- 2020-12-02 CN CN202011391724.5A patent/CN112628588A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2169468Y (en) * | 1992-06-17 | 1994-06-22 | 航空航天部第一一六厂 | Precision hydraulic filter |
| CN201218256Y (en) * | 2008-07-10 | 2009-04-08 | 西安建筑科技大学 | Oil liquid pollution monitoring and cleaning filter for hydraulic power system |
| CN202983388U (en) * | 2012-12-12 | 2013-06-12 | 新乡市天诚航空净化设备有限公司 | Pressure pipeline filter with fixed-time heating blow-down device |
| CN104763708A (en) * | 2015-04-03 | 2015-07-08 | 山东省聊城市中矿机械有限公司 | Pollution indicator |
| CN210979300U (en) * | 2019-10-29 | 2020-07-10 | 北京航峰科伟装备技术股份有限公司 | Lubricating oil filter |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210409 |
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| WD01 | Invention patent application deemed withdrawn after publication |