CN107246327A - Aeration structure and engine between a kind of multiple bearing chamber available in engine block - Google Patents
Aeration structure and engine between a kind of multiple bearing chamber available in engine block Download PDFInfo
- Publication number
- CN107246327A CN107246327A CN201710555765.5A CN201710555765A CN107246327A CN 107246327 A CN107246327 A CN 107246327A CN 201710555765 A CN201710555765 A CN 201710555765A CN 107246327 A CN107246327 A CN 107246327A
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- Prior art keywords
- bearing
- centers
- rotary shaft
- taper
- low pressure
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Classifications
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/608—Aeration, ventilation, dehumidification or moisture removal of closed spaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention relates to clean aeration structure between a kind of multiple bearing chamber available in engine block, it can be applied to the mist of oil separation of the field such as ground gas turbine, aero-engine inner bearing intracavitary portion and divulged information between centers.Taper is provided with distance collar and gets rid of oily structure and spill tank structure, nut structure has a row or multiple row rotating hole vertically, and each row rotating hole is circumferentially distributed, and pass can be common circular hole, kidney type hole or other types of hole.By the centrifuge effect under multiple row hole high speed rotational case on nut, this nut can realize the separation of mist of oil inside bearing bore, it is ensured that the clean ventilation of engine interior multiple bearing chamber part.This structure is applicable in the bearing cavity configuration of between centers ventilation, also suitable for plain bearing cavity configuration, using the bearing bore of such nut structure, and the lubricating oil accumulation problem below nut will be significantly improved.
Description
Technical field
The present invention relates to ventilation field between the multiple bearing chamber in the fields such as ground gas turbine, aero-engine, by using
New structure design and placement scheme, can meet mist of oil separation and between centers inside the bearing bore in the design of multiple bearing cavity configuration
The design of cleaning ventilation needs.
Background technology
It is many inside ground gas turbine, aero-engine for the balance of lubricating oil confession-return flow for ensureing multiple bearing chamber
Bearing bore needs to realize that the Design of ventilation between the design requirement pressed, multiple bearing chamber is gas turbine, aero-engine field axle
Hold the key technical problem in cavity configuration design.Simultaneously as the aeration structure between bearing bore can influence whole combustion gas wheel
The secondary ventilation system gas circuit design of machine, aero-engine, therefore, the Design of ventilation between bearing bore is often in complete machine structure scheme
It is accomplished by completing at the beginning of design.Be not difficult to find out, ventilation between bearing bore and cavity pressure control be one in gas turbine and
There is the Structure Designing Problem of important practical usage in aero-engine field.
In conventional gas turbine, the structure design of aero-engine, the ventilation between bearing bore is often through in engine
The design of external arrangement exterior line, or by structure design, the between centers ventilation in engine block is realized, but it is traditional
Engine block separate ventilation structure the weight of engine is increased, increase structure complexity while, there is also work
Instable potential threat.And aeration structure in existing engine block, under engine operating state, a large amount of lubricating oil and oil
Mist enters between centers vent passages, influences ventilation effect, and causes wherein to accumulate a large amount of lubricating oil, unfavorable to engine.For tradition
The problem of being divulged information between the faced multiple bearing chamber chamber of bearing bore design, in the urgent need to proposing that feasible, performance is more excellent in a kind of engineering
Bearing bore aeration structure layout strategy.
The content of the invention
It is in view of the shortcomings of the prior art and not enough, the present invention is intended to provide a kind of multiple bearing chamber available in engine block
Between aeration structure and the engine comprising the structure, can be achieved bearing bore in mist of oil separation and between centers cleaning ventilation, can be on ground
The turbomachine such as face gas turbine, aero-engine is applied in field.
The present invention by solve the problems, such as technical scheme that the structure-design technique that between centers is divulged information between above-mentioned bearing bore is used for：
Clean aeration structure between a kind of multiple bearing chamber available in engine block, can be achieved in bearing bore mist of oil separation with
And between centers is divulged information, the engine includes low pressure rotary shaft and high pressure rotary shaft, and the high pressure rotary shaft is set in low pressure rotation
Outside axle and coaxially arranged, gap therebetween forms between centers vent passages, and between centers vent passages one end connection is started
The fore bearing chamber of machine, the other end connects the rear bearing bore of engine；The rear end of the low pressure rotary shaft sets bearing, institute after low pressure
The rear end for stating high pressure rotary shaft sets bearing after high pressure, after the high pressure after the bearing block and low pressure of bearing bearing bearing block it
Between be provided with support ring；Distance collar is fixedly installed in the low pressure rotary shaft, and the distance collar is located at after the low pressure
The front end of bearing；The high-pressure rotary the tip of the axis is provided with bearing nut structure, and the nut structure is located at institute
State the rear end of bearing after high pressure, it is characterised in that
The rear bearing bore of the engine is bearing, distance collar, nut after bearing, support ring, low pressure after the high pressure
The space that structure is surrounded,
The distance collar is provided with taper close to the side of between centers vent passages and gets rid of oily structure I, in the low pressure rotary shaft
Under the effect of high speed rotary centrifugal force, the taper gets rid of oily structure I and the liquid lubricating oil on the distance collar is thrown away into the low pressure rotation
Rotating shaft,
Tapered protrusion is designed with the distal end faces close between centers vent passages of the distance collar, is rotated with the low pressure
Taper surface on axle cooperatively forms taper and gets rid of oily structure II jointly, and the taper is got rid of oily structure II and can will leak out into the between centers
The lubricating oil of vent passages throws away passage,
Oily structure II is got rid of in the taper and formation spill tank structure between oily structure I is got rid of in adjacent taper, by described
Lubricating oil can be collected by spill tank structure, and throw away oil under the height rotary centrifugal force effect of the low pressure rotary shaft
Groove, realizes the oil return of lubricating oil.
Further, the nut structure is included positioned at the threaded joints of its body portion and positioned at its rear body
Cylindrical portion, the cylindrical portion is at least extended to be set in the top that oily structure II is got rid of in the taper, the cylindrical portion along its axial direction
Two row rotation pore structure is equipped with, wherein first row rotation pore structure is located at the top of the between centers vent passages air outlet, second
Row rotation pore structure is located at the top that oily structure II is got rid of in the taper.
Preferably, the outer ring of the cylindrical portion is provided with spill tank structure, and the secondary series rotation pore structure is arranged in
In the spill tank structure.
More preferably, the distance collar is fixed on by way of elastic conjunction in the low pressure rotary shaft.
More preferably, oily structure I is got rid of in the taper, and its taper size is according to the rotary speed of oil flow and rotary shaft
It is fixed.
Selectively, taper described in multiple tracks gets rid of oily structure I along the axial arranged of the distance collar, adjacent each taper is got rid of
Spill tank structure is formed between oily structure I, oily structure I is got rid of in the taper to throw away rotation by the lubricating oil on the distance collar
Axle, first of cleaning as between centers cleaning ventilation is set.
More preferably, the distance collar is designed with spill tank structure at the position divulged information closer between centers, on the one hand can be with
Temporarily accumulate liquid lubricating oil, on the other hand rotary shaft can also be thrown away under the effect of high speed centrifugation power by oil groove two ends wall,
The oil return of lubricating oil is realized, the second as between centers cleaning ventilation, which is cleaned, to be set.
Selectively, the width and depth dimensions of the spill tank structure can according to engine be actually needed into
Row adjustment.
More preferably, the end face of the low pressure rotary shaft and distance collar, is processed by designing, and is formed the taper and is got rid of oily structure
II, the lubricating oil for entering between centers vent passages is thrown away into the passage, the 3rd road as between centers cleaning ventilation, which is cleaned, to be set.
More preferably, the multiple row rotating hole on the nut structure, it is tentatively real using the high speed rotating centrifugal effect of rotating hole
The preliminary mist of oil separation of existing engine bearing intracavitary, it is to avoid lubricating oil in the accumulation of between centers, realize ventilation between more excellent bearing bore,
Press.
More preferably, the nut structure is arranged in higher speed rotary shaft, and the rotating speed of rotating hole is of a relatively high, and hole entrance is cut
Linear velocity is higher, and rotating hole can realize more preferable mist of oil separating effect.
More preferably, the import and export radius of the rotating hole can be differed, can also basis along the pore-size distribution of the hole axle heart
Need to be changed.When shape excessively complexity leads to not machining, it can be produced by the way of casting.It is more excellent
Ground, tries one's best along the rotating hole cross section of the hole axle heart and is designed as circle, kidney type hole or other section grooves through parameter optimization
It can use, but need passing through optimization analysis using preceding.
More preferably, tangential along rotation, the rotation orifice angle should or acute angle in 90 ° with direction of rotation, increase lubricating oil
Fractional dose, improve mist of oil separating effect.
More preferably, the draw ratio of the rotating hole should be more than 2, realize high efficiency separation of the mist of oil inside rotating hole.
More preferably, the rotating hole entrance should avoid rounding or chamfering, so as to reduce the discharge coefficient in hole, further
Improve the effect of mist of oil separation.
More preferably, the circumferential quantity of each column rotating hole is not less than 2.According to oil flow and rotating speed, there is optimum oil
The rotation hole count of mist separating effect.More preferably, the rotating hole should be used no less than 2 row, it is possible to achieve the multiple oil of lubricating oil
Mist is separated so that entering the lubricating oil amount of between centers further reduces.
More preferably, using being interspersed between the rotating hole of different lines, to improve mist of oil separating effect.
More preferably, when the nut structure in hot junction in use, need at screw thread silver-plated process, it is to avoid screw thread and object part
Bonding.
More preferably, the nut structure should do the processing of salt spray resistance by the way of spraying.Nut is avoided in mist of oil ring
Corrosion under border.
More preferably, the rotating hole should can be realized excellent in the top of between centers ventilation intake position, separated mist of oil
The between centers ventilation effect of change, realizes the equilibrium of pressure between bearing bore.
According to another aspect of the present invention, additionally provide a kind of comprising the above-mentioned multiaxis available in engine block of the present invention
The engine of clean aeration structure between chamber is held, the engine is gas turbine or aero-engine.
By using structural design scheme of the present invention, compared with traditional design, have the advantage that：
1) do not increase new structure, be improved, may apply to existing on the basis of engine traditional design structure
Engine design in, with very big promotion potential；
2) multiple tracks cleaning is set, and lubricating oil can be blocked in outside between centers vent passages to greatest extent, realizes that between centers is cleaned
Ventilation, so as to improve engine performance.
Brief description of the drawings
Fig. 1 is the present invention available for clean aeration structure schematic diagram between the multiple bearing chamber in engine block.
Fig. 2 is nut structure schematic diagram.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, the present invention is done with reference to embodiment
It is further to describe in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, implement below
Example is explanation of the invention and the invention is not limited in following examples.In fact, without departing from the scope of the present invention or
In the case of spirit, various modifications and variations can be carried out in the present invention, this will be for a person skilled in the art it is aobvious and
It is clear to.For example, the feature for showing or describing as the part of one embodiment can be used together with another embodiment
To produce another embodiment.Therefore, it is intended that the present invention includes such modifications and variations in appended claims
In the range of their equivalent.
Fig. 1 can be used for clean aeration structure schematic diagram between the multiple bearing chamber in engine block.1 be with get rid of oil and oil-break groove
The spacing ring structure of structure, 2 be nut structure, and 3 be low pressure rotary shaft, and 4 be bearing after high pressure, and 5 be high pressure rotary shaft.Distance collar
1 is fixed on by way of elastic conjunction in low pressure rotary shaft 3.Nut structure 2 then plays pressuring action to bearing after high pressure 4,
And realize that the moment of torsion between rotor element is transmitted.6 be bearing after low pressure.7 be supporting ring structure, bearing 4 after high pressure, low pressure rear axle
Hold 6, nut structure 2, spacing ring structure 1 and supporting ring structure 7 constitute the rear bearing bore of engine.In engine operation process
In, lubricating oil mist of oil and liquid lubricating oil are full of inside bearing bore.In order to ensure multiple bearing chamber lubricating oil confession-return flow it is flat
Weighing apparatus, the Design of ventilation between engine multiple bearing chamber is a very crucial technical problem.But in engine actual motion mistake
Lubricating oil in Cheng Zhong, bearing bore inevitably enters between centers vent passages 9, badly influences the actual fortune of between centers ventilation
Row effect.Therefore in order to which between centers ventilation effect is better achieved, keep the passage of cleaning extremely important.Therefore, using the present invention
Structure design placement scheme.
As shown in figure 1, the present invention's can be used for clean aeration structure between the multiple bearing chamber in engine block, bearing can be achieved
Intracavitary mist of oil is separated and between centers ventilation, and engine includes low pressure rotary shaft 3 and high pressure rotary shaft 5, and high pressure rotary shaft 5 is set in
The outside of low pressure rotary shaft 3 and arranged concentric, gap therebetween form between centers vent passages 9, and the one end of between centers vent passages 9 connects
The fore bearing chamber of logical engine, the other end connects the rear bearing bore 8 of engine；The rear end of low pressure rotary shaft 3 sets low pressure rear axle
6 are held, the rear end of high pressure rotary shaft 5 sets the bearing block of bearing 6 after the bearing block and low pressure of bearing 4 after bearing 4 after high pressure, high pressure
Between be provided with support ring 7；Distance collar 1 is fixedly installed in low pressure rotary shaft 3, and distance collar 1 is located at bearing 6 after low pressure
Front end；Bearing nut structure 2 is provided with the end of high pressure rotary shaft 5, and nut structure 2 is located at bearing 4 after high pressure
Rear end., the rear bearing bore 8 of the engine is bearing 6, distance collar 1, spiral shell after bearing 4, support ring 7, low pressure after the high pressure
The space that parent structure 2 is surrounded.
Set on distance collar 1 and get rid of oily structure I 101, the big rootlet of its taper in respect of taper close to the side of between centers vent passages 9
, can be by the liquid on distance collar under the effect of high speed rotary centrifugal force depending on rotary speed according to oil flow and rotary shaft
State lubricating oil throws away rotary shaft, and first of cleaning as between centers cleaning ventilation is set.The taper is got rid of oily structure I 101 and vertically may be used
To arrange multiple tracks, oily effect is got rid of so as to further strengthen.
Closer to the side of between centers vent passages 9 on distance collar 1, tank structure 102, the width of spill oil groove are designed with
And depth dimensions can be adjusted according to being actually needed for engine.Lubricating oil can be received by the tank structure
Collection, and oil groove is thrown away under the height rotary centrifugal force effect of rotary shaft, realize the oil return of lubricating oil.So as to logical as between centers cleaning
The second cleaning of wind is set.
On the end face close between centers vent passages 9 of distance collar 1, angle of taper is designed with, and in low pressure rotary shaft
Taper surface cooperatively forms taper and gets rid of oily structure II 103 jointly.This gets rid of oily structure II 103 and can will leak out between centers vent passages
Lubricating oil throws away passage, so that the 3rd road as between centers cleaning ventilation is cleaned and set.
Nut structure 2 includes the threaded joints and the cylindrical portion positioned at its rear body positioned at its body portion, circle
Cylinder portion at least extends to the top that oily structure II 103 is got rid of in the taper.In order to further realize that mist of oil separation and lubricating oil are returned
Oil, the rotation pore structure of two row cylinder is designed with the cylindrical portion of nut structure 2, the high speed rotating centrifugal of rotating hole is utilized
Effect tentatively realizes the preliminary mist of oil separation of engine bearing intracavitary, it is to avoid lubricating oil realizes more excellent bearing in the accumulation of between centers
Ventilation between chamber, press.Wherein first row rotation pore structure 201 is located at the top of the air outlet of between centers vent passages 9, second
Row rotation pore structure 202 is located at the top that oily structure II 103 is got rid of in the taper.The outer ring of cylindrical portion is provided with spill oil groove knot
Structure, the secondary series rotation pore structure 202 is arranged in the spill tank structure.Spacing between rotating hole is obtained by optimization design
Arrive.The mist of oil initial gross separation inside the place bearing bore of nut structure 2 is realized, and is realized distance collar and low pressure rotary shaft is common
The 3rd road cleaning of composition sets the oil return of thrown away lubricating oil.Meanwhile, the type twin-spool engine realizes antero posterior axis by between centers
Hold the ventilation between chamber.Mist of oil after being separated through nut mist of oil is realized the pressure between bearing bore by between centers radius clearance and set
Meter.
Fig. 2 is the threedimensional model of the nut structure described in patent of the present invention.It can be seen that the column shaped rotating hole of the nut
The axial location at place.Mist of oil after separation enters the inner side of nut, and the ventilation between bearing bore is realized eventually through between centers
Design.More preferably, the import and export radius of the rotating hole can be differed, can also root along the pore-size distribution of the hole axle heart
It is changed according to needs.When shape excessively complexity leads to not machining, it can be produced by the way of casting.Compared with
Excellently, tried one's best along the rotating hole cross section of the hole axle heart and be designed as circle, kidney type hole or other section grooves through parameter optimization
It can also use, but need passing through optimization analysis using preceding.More preferably, tangential along rotation, the rotation orifice angle should be with
Direction of rotation is in 90 ° or acute angle, increases the fractional dose of lubricating oil, improves mist of oil separating effect.More preferably, the length of the rotating hole
Footpath ratio should be more than 2, realize high efficiency separation of the mist of oil inside rotating hole.More preferably, the rotating hole entrance should be avoided
Rounding or chamfering, so as to reduce the discharge coefficient in hole, further improve the effect of mist of oil separation.More preferably, each column rotating hole
Circumferential quantity be not less than 2.According to oil flow and rotating speed, there is the rotation hole count of optimal mist of oil separating effect.It is more excellent
Ground, the rotating hole should be used no less than 2 row, it is possible to achieve the multiple mist of oil separation of lubricating oil so that enter the lubricating oil of between centers
Amount further reduction.More preferably, using being interspersed between the rotating hole of different lines, to improve mist of oil separating effect.More preferably,
When the nut structure in hot junction in use, need at screw thread silver-plated process, it is to avoid screw thread is bonding with object part.More preferably,
The nut structure should do the processing of salt spray resistance by the way of spraying.Avoid corrosion of the nut under mist environment.It is more excellent
Ground, the rotating hole should be in the top of between centers ventilation intake position, and separated mist of oil can realize the between centers ventilation of optimization
Effect, realizes the equilibrium of pressure between bearing bore.
It should be noted that spacing ring mechanism, nut structure and other architectural feature design sides in different practicality examples
Case, should consider the use environment of the structure.Pay close attention to the factor such as temperature in use and bearing bore internal work environment.This
The difference of a little ambient parameters will cause rotating hole design to change.Should be according to the actual needs in practical application example
Careful analysis is carried out, whole design parameters of the structure are finally confirmed.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Title etc. can be different.The equivalent or simple change that all construction, feature and principles according to described in inventional idea of the present invention are done, is wrapped
Include in the protection domain of patent of the present invention.Those skilled in the art can be to described specific implementation
Example is made various modifications or supplement or substituted using similar mode, structure without departing from the present invention or surmounts this
Scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (10)
1. clean aeration structure between a kind of multiple bearing chamber available in engine block, can be achieved in bearing bore mist of oil separation and
Between centers is divulged information, and the engine includes low pressure rotary shaft and high pressure rotary shaft, and the high pressure rotary shaft is set in low pressure rotary shaft
Outside and coaxially arranged, gap therebetween forms between centers vent passages, and described between centers vent passages one end connects engine
Fore bearing chamber, the other end connect engine rear bearing bore；The rear end of the low pressure rotary shaft sets bearing after low pressure, described
After bearing after the rear end setting high pressure of high pressure rotary shaft, the high pressure after the bearing block and low pressure of bearing between the bearing block of bearing
It is provided with support ring；Distance collar is fixedly installed in the low pressure rotary shaft, and the distance collar is located at the low pressure rear axle
The front end held；The high-pressure rotary the tip of the axis is provided with bearing nut structure, and the nut structure is positioned at described
The rear end of bearing after high pressure, it is characterised in that
The rear bearing bore of the engine is bearing, distance collar, nut structure after bearing, support ring, low pressure after the high pressure
The space surrounded,
The distance collar is provided with taper close to the side of between centers vent passages and gets rid of oily structure I, in the low pressure rotary shaft at a high speed
Under rotary centrifugal force effect, the taper gets rid of oily structure I and the liquid lubricating oil on the distance collar is thrown away into the low pressure rotary shaft,
Tapered protrusion is designed with the distal end faces close between centers vent passages of the distance collar, and in the low pressure rotary shaft
Taper surface cooperatively form taper jointly and get rid of oily structure II, the taper is got rid of oily structure II and can will leak out between centers ventilation
The lubricating oil of passage throws away passage,
Oily structure II is got rid of in the taper and formation spill tank structure between oily structure I is got rid of in adjacent taper, passes through the spill
Lubricating oil can be collected by tank structure, and throw away oil groove under the height rotary centrifugal force effect of the low pressure rotary shaft,
Realize the oil return of lubricating oil.
2. structure according to claim 1, it is characterised in that the nut structure includes the screw thread positioned at its body portion
Connecting portion and the cylindrical portion positioned at its rear body, the cylindrical portion at least extend to the top that oily structure II is got rid of in the taper
In portion, the cylindrical portion along its it is axially arranged have two row rotate pore structure, wherein first row rotation pore structure be located at the between centers
The top of vent passages air outlet, secondary series rotation pore structure is located at the top that oily structure II is got rid of in the taper.
3. the structure according to the claims, it is characterised in that the outer ring of the cylindrical portion is provided with spill oil groove knot
Structure, the secondary series rotation pore structure is arranged in the spill tank structure.
4. the structure according to the claims, it is characterised in that the spacing ring structure is by way of elastic conjunction
It is fixed in the low pressure rotary shaft；.
5. the structure according to the claims, it is characterised in that oily structure I is got rid of in the taper, its taper size according to
Depending on the rotary speed of oil flow and rotary shaft.
6. the structure according to the claims, it is characterised in that axial arranged along the distance collar has described in multiple tracks
Oily structure I is got rid of in taper, and adjacent each taper, which is got rid of, forms spill tank structure between oily structure I, and oily structure I is got rid of in the taper can be with
Lubricating oil on the distance collar is thrown away into rotary shaft, first of cleaning as between centers cleaning ventilation is set.
7. the structure according to the claims, it is characterised in that the distance collar at the position divulged information closer between centers,
Be designed with spill tank structure, on the one hand can temporarily accumulate liquid lubricating oil, on the other hand can also by oil groove two ends wall,
Rotary shaft is thrown away under the effect of high speed centrifugation power, the oil return of lubricating oil is realized, the second as between centers cleaning ventilation, which is cleaned, to be set.
8. the structure according to the claims, it is characterised in that the width and depth gauge rule of the spill tank structure
It is very little to be adjusted according to being actually needed for engine.
9. the structure according to the claims, it is characterised in that the end face of the low pressure rotary shaft and distance collar, passes through
Design processing, forms the taper and gets rid of oily structure II, the lubricating oil for entering between centers vent passages is thrown away into the passage, clean as between centers
Only the 3rd road cleaning divulged information is set.
10. the structure according to the claims, it is characterised in that the multiple row rotating hole on the nut structure, is utilized
The high speed rotating centrifugal effect of rotating hole tentatively realizes the preliminary mist of oil separation of engine bearing intracavitary, it is to avoid lubricating oil is between centers
Accumulation, realizes the ventilation between more excellent bearing bore, presses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555765.5A CN107246327B (en) | 2017-07-10 | 2017-07-10 | One kind can be used for aeration structure and engine between the intracorporal multiple bearing chamber of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555765.5A CN107246327B (en) | 2017-07-10 | 2017-07-10 | One kind can be used for aeration structure and engine between the intracorporal multiple bearing chamber of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107246327A true CN107246327A (en) | 2017-10-13 |
| CN107246327B CN107246327B (en) | 2019-02-15 |
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| CN201710555765.5A Active CN107246327B (en) | 2017-07-10 | 2017-07-10 | One kind can be used for aeration structure and engine between the intracorporal multiple bearing chamber of engine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109736951A (en) * | 2019-01-16 | 2019-05-10 | 中国科学院工程热物理研究所 | The bearing lubrication and sealing system of microminiature gas turbine rotor system |
| CN115318013A (en) * | 2022-07-05 | 2022-11-11 | 中国航发湖南动力机械研究所 | Centrifugal oil-gas separation structure |
| CN116561933A (en) * | 2023-07-05 | 2023-08-08 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
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| CN105863847A (en) * | 2016-04-13 | 2016-08-17 | 中国科学院工程热物理研究所 | Bearing chamber axle center ventilating structure and gas turbine engine with same |
| CN205805732U (en) * | 2016-05-13 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of metal sponge combined centrifugal aerarium of import band web pattern |
| CN106837553A (en) * | 2017-01-23 | 2017-06-13 | 中国科学院工程热物理研究所 | A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure |
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| CN109736951A (en) * | 2019-01-16 | 2019-05-10 | 中国科学院工程热物理研究所 | The bearing lubrication and sealing system of microminiature gas turbine rotor system |
| CN109736951B (en) * | 2019-01-16 | 2020-08-25 | 中国科学院工程热物理研究所 | Bearing lubricating and sealing system of rotor system of micro gas turbine |
| CN115318013A (en) * | 2022-07-05 | 2022-11-11 | 中国航发湖南动力机械研究所 | Centrifugal oil-gas separation structure |
| CN116561933A (en) * | 2023-07-05 | 2023-08-08 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
| CN116561933B (en) * | 2023-07-05 | 2023-09-05 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
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