CN106917931B - The remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil - Google Patents
The remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil Download PDFInfo
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- CN106917931B CN106917931B CN201510992550.0A CN201510992550A CN106917931B CN 106917931 B CN106917931 B CN 106917931B CN 201510992550 A CN201510992550 A CN 201510992550A CN 106917931 B CN106917931 B CN 106917931B
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- Prior art keywords
- ventilation shaft
- high pressure
- moving body
- ventilation
- valve
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Exhaust Silencers (AREA)
Abstract
It is a kind of remove Aero-engine Bearing chamber ventilation duct wall surface lubricating oil device include moving body, elasticity reset device, high pressure air flue and switching device, wherein moving body is slidably disposed in ventilation shaft, and the inner wall face contact with ventilation shaft；Elasticity reset device is set in ventilation shaft, connects moving body so that moving body to be maintained to the starting point in the cleaning region of ventilation shaft；High pressure air flue connects ventilation shaft；Switching device is used to closing one in high pressure air flue and ventilation shaft into another opening simultaneously；Mobile physical efficiency is pushed to the end in the cleaning region of ventilation shaft by the high pressure gas that high pressure air flue introduces, and is whereby removed the lubricating oil of the inner wall of ventilation shaft, and can be withdrawn into starting point by elasticity reset device；Moving body is configured to the valve of one-way conduction, and the conducting direction of the valve is the direction of ventilation of ventilation shaft and opposite with the incoming direction of the high pressure gas in ventilation shaft.
Description
Technical field
The present invention relates to aircraft engine accessories.
Background technique
With the development of high-performance aeroengine, requirement of the advanced aero-engine for oil system not only embodies
In the lubrication for bearing and gear, it is more embodied in the efficient cooling to mechanical system component.Heat can be mechanical system portion
What part generated in normal work, it is also possible to bring component by heat exchange methods such as convection current radiation by engine hot-zone.
It is corroded will receive biggish heat from the closer bearing bore in engine hot-zone.Such as pass through from the ventilation shaft that bearing bore is drawn
Turbine rear carrier plate, excessively high heat usually can cause air pipeline internal temperature excessively high at turbine, so that lubricating oil is being divulged information
There is a phenomenon where coking and blocking pipelines in tube wall face, or even lubricating oil is caused to burn.
Summary of the invention
The purpose of the present invention is to provide a kind of devices for removing Aero-engine Bearing chamber ventilation duct wall surface lubricating oil.
A kind of remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil, it is characterised in that including moving body, bullet
Property resetting apparatus, high pressure air flue and switching device, wherein moving body is slidably disposed in ventilation shaft, and with it is described logical
The inner wall face contact of air piping；Elasticity reset device is set in the ventilation shaft, connects the moving body with by the movement
Body is maintained at the starting point in the cleaning region of the ventilation shaft；High pressure air flue connects the ventilation shaft；Switching device is used for
One in the high pressure air flue and the ventilation shaft is closed into another opening simultaneously；The mobile physical efficiency is by the high pressure
The high pressure gas that air flue introduces is pushed to the end in the cleaning region of the ventilation shaft, whereby by the institute of the ventilation shaft
The lubricating oil for stating inner wall is removed, and can be withdrawn into the starting point by the elasticity reset device；The moving body is configured to list
To the valve of conducting, the conducting direction of the valve be the direction of ventilation of the ventilation shaft and with the height in the ventilation shaft
The incoming direction calmed the anger is opposite.
In a preferred embodiment, the moving body includes two for having the valve body of valve opening and being arranged in the valve opening
Oscillating deck, the oscillating deck are hinged on the hinged shaft of the valve opening, and two oscillating deck covers the cross of the entire valve opening
Section to close the valve opening, and can also be pushed by the ventilation of the ventilation shaft and freely be overturn, and can be by the high pressure
Gas pushes and is reset to the position for closing the valve opening.
In a preferred embodiment, the valve body includes annular element and covers rubber ring in annular element peripheral side, described
Annular element can be moved by means of the guide rail of the inner wall of the ventilation shaft.
In a preferred embodiment, the end in the cleaning region of the ventilation shaft is provided with to the movement
Body plays the limiting device of position-limiting action.
In a preferred embodiment, the switching device includes swingable valve plate, and the valve plate can be rocked to truncation institute
The position of high pressure air flue is stated, the position of the ventilation shaft can be also rocked to.
In a preferred embodiment, the remove device further includes control device, and the control device is according to engine
Tach signal switches the switching device.
In a preferred embodiment, the compressor of the high pressure air flue connection engine.
In a preferred embodiment, the elasticity reset device is torsional spring.
In a preferred embodiment, the hot-zone of engine is arranged in the ventilation shaft.
Lubricating oil may there is a phenomenon where coking and blocking pipelines in ventilation duct wall surface, or even lubricating oil is caused to burn.Use basis
After the remove device of this valve, after engine cut-off, the lubricating oil amount of ventilation shaft wall surface is substantially by wiped clean, it is suppressed that pipe
The interior probability that coking occurs.
Detailed description of the invention
The above and other features of the present invention, property and advantage will pass through retouching with reference to the accompanying drawings and examples
It states and becomes readily apparent from, in which:
Fig. 1 is the signal of the remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil in one embodiment of the invention
Figure；
Fig. 2 is the cross-sectional view of ventilation shaft side in Fig. 1.
Specific embodiment
The invention will be further described with attached drawing combined with specific embodiments below, elaborates in the following description more
Details to facilitate a thorough understanding of the present invention, still the present invention obviously can be come with a variety of other ways different from this description it is real
It applies, those skilled in the art can make similar popularization according to practical situations without violating the connotation of the present invention, drill
It unravels silk, therefore should not be limited the scope of the invention with the content of this specific embodiment.
It should be noted that attached drawing is only as an example, it is not to draw according to the condition of equal proportion, and do not answer
This is construed as limiting in this, as the protection scope to actual requirement of the present invention.
As shown in Figure 1, in one embodiment of this invention, the removing of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil fills
It sets including moving body 10, elasticity reset device 3, high pressure air flue 9 and switching device 7.Moving body 10 is slidably disposed on logical
In air piping 2, and the inner wall face contact with ventilation shaft 2.Elasticity reset device 3 is arranged in ventilation shaft 2, connects moving body
10 position moving body 10 to be maintained to the starting point of the cleaning region C of ventilation shaft 2, i.e., in substantially Fig. 1.High pressure air flue
9 connection ventilation shafts 2.Switching device 7 is used to closing one in high pressure air flue 9 and ventilation shaft 2 into another opening simultaneously.
Moving body 10 can be pushed to the end of the cleaning region C of ventilation shaft 2 by the high pressure gas that high pressure air flue 9 introduces, in substantially Fig. 1
The lubricating oil of the inner wall of ventilation shaft 2 is removed whereby, and can be withdrawn by elasticity reset device 3 in the position of positive stop lug boss 6
Beginning.And moving body 10 is configured to the valve of one-way conduction, and the conducting direction of the valve is the direction of ventilation of ventilation shaft 2, in Fig. 1
In direction substantially from the bottom up, and with the incoming direction of the high pressure gas in ventilation shaft 2 on the contrary, incoming direction is in Fig. 1
In for from top to bottom.
When aero-engine works normally, in 2 Nei Ruobao of ventilation shaft apart from the closer bearing bore in engine hot-zone
Hold lubricating oil, will occur lubricating oil coking, phenomena such as lubricating oil burns, this affects the normal work of engine.Of the invention
In embodiment, moving body 10 is equivalent to wiping arrangement, begins with air-flow when the engine operates, in bearing bore and passes through, these gas
Stream may be to obturage part for bearing bore.The one-way conduction function of moving body 10 does not influence air-flow normal through ventilation shaft 2, this
When switching device 7 high pressure air flue 9 is closed, while ventilation shaft 2 being opened.After engine cut-off, switching device 7 is by high pressure
Air flue 9 is opened, while ventilation shaft 2 being closed, and high pressure draught rushes at moving body, since moving body 10 is in the direction of high pressure draught
It is not turned on, therefore 10 one side of moving body will move under the promotion of high pressure gas, the inner wall of wiping ventilation shaft 2, in removing
Lubricating oil that may be present on wall, while high pressure gas can be stopped to enter in bearing bore, cause the oil droplet in bearing bore to be blown out chamber
Room.After moving body 10 is blown to the end in cleaning region of ventilation shaft by high pressure gas, so that it may by the oil droplet of ventilation shaft wall surface
Wiped clean.Then, switching device 7 closes high pressure air flue 9, while ventilation shaft 2 being opened, and elasticity reset device 3 will move
Kinetoplast pull-up, system restPose.
In engine stop work, previous embodiment can wipe the oil droplet of ventilation shaft wall surface completely, it is suppressed that pipe
The interior probability that coking occurs.
Moving body 10 can be check valve or similar structure.It is mobile in preferred embodiment as shown in Figure 1 and Figure 2
Body 10 includes two oscillating decks 4 for having the valve body 8 of valve opening and being arranged in valve opening, and two oscillating decks 4 can be symmetrical arranged, can also
To be non-symmetrically arranged two plate, oscillating deck 4 is hinged on the hinged shaft of the valve opening of valve body 8, and two oscillating decks 4 are in such as Fig. 2
In horizontal position when can cover the cross section of entire valve opening, with close valve orifice, and can also be pushed away by the ventilation of ventilation shaft 2
It moves and freely overturns, overturn general 90 degree, and then can push and be reset to the position of close valve orifice by high pressure gas.In the present invention
Other embodiments, moving body can also be other one-way valve structures.
With continued reference to Fig. 1, Fig. 2, valve body 8 includes annular element and covers rubber ring 5 in annular element peripheral side, annular element energy
It is moved by means of the guide rail 21 of the inner wall of ventilation shaft 2, since the forced guiding of guide rail 21 acts on, can prevent valve body from turning
It is dynamic.
As depicted in figs. 1 and 2, it is additionally provided in the end in the cleaning region of ventilation shaft 2 and limit work is risen to moving body 10
Positive stop lug boss 6.In other embodiments of the invention, positive stop lug boss 6 can be omitted.
As shown in Figure 1, switching device 7 includes swingable valve plate, high pressure air flue 9 can be truncated in vertical position A in valve plate,
In horizontal position, ventilation shaft 2 can be truncated in B.Switching device 7 can also be arranged to include being separately positioned on ventilation shaft 2, high pressure
Air valve in air flue 9 is played the role of closing alternative one by the control of controller and another is opened.
Switching device 7 can be set into be it is automatically controlled, remove device according to the present invention can also include control device, control
Device processed is according to the tach signal of engine come converting switch device 7.
High pressure air flue 9 can connect the compressor of engine, from wherein introducing high pressure gas.
Elasticity reset device 3 can ride over ventilation duct for torsional spring or other springs or elastic construction, a stabilizer blade of torsional spring
The inner wall in road 2, another stabilizer blade are connected on moving body 10, apply the power pulled up.
In preferred embodiment as depicted in figs. 1 and 2, begins with air-flow when the engine operates, in bearing bore and passes through,
And it flows up.Semicircular oscillating deck 4 is blown afloat, and does not influence air-flow normal through ventilation shaft 2.After engine cut-off,
Valve 1, switching device 7 open (valve 1 can be omitted) after receiving signal to stall, and high pressure draught rushes at ventilation shaft 2,
And oscillating deck 4 is rushed at, so that semicircular oscillating deck 4 is in closed state.Moving body 10 is blown to ventilation shaft 2 by high pressure gas
Bottom, moving body 10 is by the oil droplet wiped clean of pipeline wall surface.Behind converting switch device 7, in pipeline 2 after pressure recovery, bullet
By 2 pull-up of moving body, system restPoses property resetting apparatus 3.
As shown in Fig. 2, semicircular oscillating deck 4 is blown afloat when air-flow passes through bearing bore, runner is not hindered.Work as switch
After device 7 is opened, oscillating deck 4 is blown to horizontal position by high pressure draught, this is the extreme position of oscillating deck 4.High pressure gas will therewith
Entire moving body is blown to 2 bottom of ventilation shaft.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any modification to the above embodiments, equivalent variations
And modification, it each falls within the protection scope that the claims in the present invention are defined.
Claims (9)
1. a kind of remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil, it is characterised in that including
Moving body is slidably disposed in ventilation shaft, and the inner wall face contact with the ventilation shaft；
Elasticity reset device is arranged in the ventilation shaft, connects the moving body so that the moving body is maintained at described
The starting point in the cleaning region of ventilation shaft；
High pressure air flue connects the ventilation shaft；And
Switching device is used to closing one in the high pressure air flue and the ventilation shaft into another opening simultaneously；
Wherein, the mobile physical efficiency is pushed to the clear area of the ventilation shaft by the high pressure gas that the high pressure air flue introduces
The lubricating oil of the inner wall of the ventilation shaft is removed whereby, and can be retracted by the elasticity reset device in the end in domain
To the starting point；The moving body is configured to the valve of one-way conduction, and the conducting direction of the valve is the ventilation of the ventilation shaft
Direction is simultaneously opposite with the incoming direction of the high pressure gas in the ventilation shaft.
2. remove device as described in claim 1, which is characterized in that the moving body include have valve opening valve body and
Two oscillating decks being arranged in the valve opening, the oscillating deck are hinged on the hinged shaft of the valve opening, and two oscillating deck covers
The cross section of the entire valve opening is covered, to close the valve opening, and can also be free by the ventilation of ventilation shaft promotion
Overturning, and can be pushed by the high pressure gas and be reset to the position for closing the valve opening.
3. remove device as claimed in claim 2, which is characterized in that the valve body includes annular element and covers outside annular element
The rubber ring of side, the annular element can be moved by means of the guide rail of the inner wall of the ventilation shaft.
4. remove device as described in claim 1, which is characterized in that the end in the cleaning region of the ventilation shaft
End is provided with the limiting device that position-limiting action is played to the moving body.
5. remove device as described in claim 1, which is characterized in that the switching device includes swingable valve plate, described
Valve plate can be rocked to the position that the high pressure air flue is truncated, and can also be rocked to the position of the ventilation shaft.
6. remove device as described in claim 1, which is characterized in that the remove device further includes control device, the control
Device processed switches the switching device according to the tach signal of engine.
7. remove device as described in claim 1, which is characterized in that the compressor of the high pressure air flue connection engine.
8. remove device as described in claim 1, which is characterized in that the elasticity reset device is torsional spring.
9. remove device as described in claim 1, which is characterized in that the hot-zone of engine is arranged in the ventilation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992550.0A CN106917931B (en) | 2015-12-25 | 2015-12-25 | The remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992550.0A CN106917931B (en) | 2015-12-25 | 2015-12-25 | The remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106917931A CN106917931A (en) | 2017-07-04 |
| CN106917931B true CN106917931B (en) | 2018-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510992550.0A Active CN106917931B (en) | 2015-12-25 | 2015-12-25 | The remove device of Aero-engine Bearing chamber ventilation duct wall surface lubricating oil |
Country Status (1)
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| CN (1) | CN106917931B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320487A (en) * | 2000-04-21 | 2001-11-07 | 王筱均 | High-pressure gas method for descaling pipeline and protecting pipeline wall |
| CN1704181A (en) * | 2004-05-28 | 2005-12-07 | 于江 | Ventilating duct cleaning unit |
| US8020580B2 (en) * | 2008-07-07 | 2011-09-20 | Purolator Filters Na Llc | Drain pipe connector for fluid filters |
| CN204785291U (en) * | 2015-06-11 | 2015-11-18 | 河北天能新型建材股份有限公司 | Air conditioner air pipe |
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2015
- 2015-12-25 CN CN201510992550.0A patent/CN106917931B/en active Active
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| CN106917931A (en) | 2017-07-04 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Applicant after: China Hangfa commercial aviation engine limited liability company Address before: 201109 Shanghai city Minhang District Hongmei Road No. 5696 Room 101 Applicant before: AVIC Commercial Aircraft Engine Co.,Ltd. |
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