CN106837553B - A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure - Google Patents
A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure Download PDFInfo
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- CN106837553B CN106837553B CN201710051202.2A CN201710051202A CN106837553B CN 106837553 B CN106837553 B CN 106837553B CN 201710051202 A CN201710051202 A CN 201710051202A CN 106837553 B CN106837553 B CN 106837553B
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- oil
- bearing chamber
- oilhole
- engine
- gas separation
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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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
Abstract
The present invention relates to a kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structures, the Oil-gas Separation component being assemblied on high-speed rotating shaft is provided in the bearing bore, outer peripheral surface gets rid of oilhole equipped with master, pair gets rid of oilhole and multiple tracks oil-break slot circumferentially；Ventilation tube socket is provided in the high-speed rotating shaft, the ventilation tube socket is by air pipeline and the intracavitary Oil-gas Separation members of downstream bearing, to realize the bearing bore axle center ventilation of multiple bearing chamber.By using the structure, it can effectively realize the axle center ventilation between engine difference bearing bore, it can more effectively realize the chamber pressure balance of engine, ground gas turbine high speed rotation bearing chamber, mist of oil ratio when reducing ventilation in air-flow improves the ventilation effect of bearing bore and reduces the mist of oil separation requirement of the outer oil mist separator of engine block.This, which further decreases the ground gas turbine of lube use rate or aero-engine for pursuit, has important engineering application value.
Description
Technical field
The present invention relates to a kind of bearing bore Oil-gas Separations and multiple bearing chamber for fields such as gas turbine, aero-engines
Axle center aeration structure realizes that the oil gas in bearing bore divides using master/slave oilhole, oil-break slot and the design of oil accumulation slot of getting rid of of the structure
From, using ventilation tube socket and air pipeline realize different bearing bores axle center divulge information.
Background technique
It is in gas turbine, aviation that the lubricating oil Oil-gas Separation of high speed rotation bearing chamber and the chamber of multiple bearing bores, which are pressed,
Engine art has the engineering problem of important practical usage.
In previous gas turbine, the design of aero-engine structure, the Oil-gas Separation of bearing bore is by outside main body
Mist of oil injection pipeline and Accessory Gear Box on oil mist separator realize, and the ventilation of multiple bearing bores and press then past
Past is that the pipe-line system by external connection in each bearing bore is realized.Obviously, exterior line required for these systems with
And the demand of individual oil mist separator, it not only will affect the reliability of complete machine, while can also dramatically increase the complexity of complete machine
And weight, finally influence the further promotion of high performance gas-turbine engine, aero-engine performance.Therefore, there is an urgent need to propose one
Plant the ventilation scheme of the more preferably Oil-gas Separation of bearing bore and multiple bearing chamber.
Summary of the invention
For the disadvantages mentioned above and deficiency of the prior art, the present invention is intended to provide a kind of be used for high engine speeds swivel bearing
Axle center aeration structure between intracavitary Oil-gas Separation and multiple bearing chamber can effectively realize the axis between engine difference bearing bore
Heart ventilation, mist of oil ratio when reducing ventilation in air-flow improve the ventilation effect of bearing bore and reduce the outer mist of oil point of engine block
Mist of oil separation requirement from device, then reduces lube use rate.
The present invention is technical solution used by solving its technical problem are as follows:
A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure, the bearing bore are high engine speeds
Swivel bearing chamber is provided with bearing and Oil-gas Separation component in the bearing bore, which is characterized in that
-- the Oil-gas Separation component is integrally in a cylindrical sleeve, and high-speed rotating shaft is assembled by way of interference fit
Outer round surface on, the space between the inner circumferential surface of the cylindrical sleeve and the outer round surface of high-speed rotating shaft forms product
Oil groove；
The cylindrical outer circumferential face of the Oil-gas Separation component, which is equipped with, main gets rid of oilhole, the secondary oilhole and circumferentially of getting rid of
Multiple tracks oil-break slot；The master gets rid of oilhole, the secondary one end connection bearing bore for getting rid of oilhole, and the other end is connected to oil accumulation slot；The master gets rid of oil
Hole has the gear oil boss of certain altitude；
-- the high-speed rotating shaft is hollow structure, is provided with ventilation tube socket and air pipeline, the ventilation tube socket
One end is connected to the oil accumulation slot, and the other end with the intracavitary Oil-gas Separation component of the air pipeline and downstream bearing by connecting
It is logical, to realize the bearing bore axle center ventilation of multiple bearing chamber.
Preferably, the master gets rid of oilhole, the secondary oilhole that gets rid of is arranged on the outer round surface of the cylindrical sleeve in discrete shape,
The Oil-gas Separation that the oil accumulation tank liquid lubricating oil is flowed into bearing bore chamber may be implemented.
Preferably, the master gets rid of oilhole, pair gets rid of oilhole equidistant, multiple rows of circumferentially staggered or multiple rows of circumferential direction is simultaneously in multiple rows of axial direction
Column mode is arranged on the outer round surface of the cylindrical sleeve.Machining should ensure that part any surface finish with higher
Degree requires, and avoids causing biggish windage fuel factor because roughness is excessively high, so as to cause harmful temperature rise of lubricating oil.According to using
Demand, aperture, hole count and the arrangement that pair gets rid of oilhole can advanced optimize.
Preferably, the aperture that the master gets rid of oilhole is greater than pair and gets rid of oilhole.The main oilhole that gets rid of is the master for realizing lubricating oil Oil-gas Separation
Want structure feature.Its biggish aperture is the key that realize that lubricating oil is smoothly thrown away in oil accumulation slot.The effect that pair gets rid of oilhole is to realize
The quick spilling of accumulation lubricating oil in the pressure equilibrium of oil accumulation slot and oil accumulation slot.
Preferably, according to use demand, in conjunction with the actual conditions of the intracavitary lubricating oil fuel delivery of bearing, master, which gets rid of oilhole, be may be designed to
The pass of expanding.
Preferably, the oily boss of the gear has certain altitude and is in domain structure, can reduce bearing intracavity liquid lubricating oil
The internally risk of ventilation tube socket leakage, gets rid of in oilhole and for liquid lubricating oil is avoided to flow into a manner of flood irrigation.
Preferably, if being provided with oil-break slot described in arterial highway in the two sides for keeping off oily boss.
Preferably, one end of the cylindrical sleeve, which is provided with to pull out, unloads slot, and the other end is provided with positioning surface, can use circle
The bearing positioning cylindrical surface at cylindrical sleeve both ends realizes the positioning of the structure, guarantees the dynamically balanced requirement of engine rotor.
The oil and gas environments of " cleaning " may be implemented in ventilation tube socket and air pipeline in high-speed rotating shaft, and realize
Efficient axle center ventilation effect between different bearing bores.
In engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure of the invention, the domain is arranged master/slave
Oilhole is got rid of by various circular hole, profiled holes, realizes efficiently separating for oil gas in bearing bore；The master/slave oil hole structure that gets rid of of the domain can be adopted
It is used for " throwing is got rid of " of bearing intracavity liquid lubricating oil with the circular hole for having compound angle, realizes more efficient lubricating oil, gas separation；It is different
The master/slave oilhole major function of getting rid of of position has two: the lubricating oil in oil accumulation slot is thrown away；It is realized using the main larger aperture for getting rid of oilhole
The separation of oil gas.Its principle is to be thrown away the lubricating oil entered in oil accumulation slot from master/slave oilhole using high-speed rotating centrifugal effect
In oil accumulation slot, so that big quantity of fluid lubricating oil be prevented to pass through oil accumulation slot ventilation tube socket internally and movement.A small amount of liquid is sliding
Oil or the lubricating oil of oil gas state realize the ventilation of bearing bore by ventilation pipe sleeve, and are realized by the oil mist separator of external harmoniousness
The utmostly recycling of lubricating oil；It can be to avoid the rotating boosting and liquid of oil film positioned at the main multiple tracks oil-break slot for getting rid of oilhole two sides
Lubricating oil gets rid of the flowing accumulation on oilhole periphery to Oil-gas Separation；Ventilation tube socket and air pipeline positioned at oil accumulation trench bottom can be real
Now the pipeline of " cleaning " oil gas is divulged information after centrifugal action separates.
Compared with the existing technology, engine bearing chamber Oil-gas Separation of the invention and multiple bearing chamber axle center aeration structure, can
Effectively to realize that the axle center between engine difference bearing bore is divulged information, mist of oil ratio when divulging information in air-flow is reduced, bearing is improved
The ventilation effect of chamber and the mist of oil separation requirement for reducing the outer oil mist separator of engine block, then reduce lube use rate.Into one
Step ground, realization with this configuration can effectively simplify the exterior line of engine, realize the inside gravity-flow ventilation of bearing bore.
This also has the reliability of the structural complexity of reduction engine or ground combustion machine, promotion engine or ground combustion machine important
Meaning.In addition, by being adjusted to design parameter optimization, for example hole count to Oil-gas Separation and ventilation integral structure, Kong Zhi
Diameter and boss height are adjusted, and Oil-gas Separation/ventilation of high speed rotation bearing chamber can be better achieved.With traditional knot
Structure is compared, and by cleverly designing, of the invention may be implemented the external mist of oil separation of bearing bore and two kinds of functions of axle center ventilation
Integration can more effectively realize the chamber pressure balance of engine, ground gas turbine high speed rotation bearing chamber.
Detailed description of the invention
Fig. 1 is the application schematic diagram of engine bearing chamber Oil-gas Separation of the invention and multiple bearing chamber axle center aeration structure.
Fig. 2 is the structural schematic diagram of Oil-gas Separation component of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, the present invention is done below with reference to embodiment
Further to be described in detail, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.It needs to illustrate
, following embodiment is explanation of the invention and the invention is not limited to following embodiments.In fact, without departing from this
In the case where the range or spirit of invention, it can carry out various modifications and change in the present invention, this is to those skilled in the art
For will be apparent.For example, the feature that a part as one embodiment shows or describes can be with another reality
Example is applied to be used together to generate another embodiment.Therefore, it is intended that such modifications and variations are included appended by the present invention
Claims and their equivalent in the range of.
As shown in Figure 1, the present embodiment is to use engine of the invention in aero-engine low pressure front fulcrum bearing bore
The design scheme of bearing bore Oil-gas Separation and multiple bearing chamber axle center ventilation integral structure.In this embodiment, high engine speeds
The intracavitary 1# ball bearing 2 and 2# ball bearing 6 for being disposed with support engine low pressure shafting of swivel bearing.The external envelope of bearing bore two sides
Sternly realized by traditional labyrinth gas seals structure 1,10.And the lubricating oil for feeding to bearing inner ring runway passes through the fuel oil supply nozzle on bearing block
7 realize the lubricating oil supply to corresponding shaft bearing.
Oil gas is set on the outer round surface of low-voltage high speed rotary shaft 8 in bearing bore between 1# ball bearing 2 and 2# ball bearing 6
Separation unit 4, the cold conditions by way of interference fit of Oil-gas Separation component 4 are assemblied in the outer round surface of low-voltage high speed spin axis 8,
The rotation of torsion pass and high speed is realized under the action of axial nut pressing force.The liquid that Oil-gas Separation component 4 is flowed in bearing bore is sliding
Oil effectively realizes the separation of liquid, gas under the effect of centrifugal force.A small amount of oil gas is inwardly flowed to by Oil-gas Separation component 4
Ventilation tube socket 5 simultaneously continues through the oil gas point in the air pipeline 9 and other bearing bores being arranged in hollow low-voltage high speed spin axis 8
It is connected to from component 4, to realize the bearing bore axle center ventilation of multiple bearing chamber.
Its structure working principle is made a concrete analysis of, as shown in Fig. 2, it is in a cylindrical sleeve, the circle that Oil-gas Separation component 4 is whole
One end of cylindrical sleeve, which is provided with to pull out, unloads slot 41, and the other end is provided with positioning surface 47, the cylindrical outer circumferential of Oil-gas Separation component 4
Oilhole 44 is got rid of equipped with master in face, pair gets rid of oilhole 42 and circumferentially continuous but discrete oil-break slot 43.The main oilhole that gets rid of has certain height
The gear oil boss 45 of degree.It is main get rid of oilhole 44, pair gets rid of oilhole 42 equidistant, multiple rows of circumferentially staggered or multiple rows of circumferential direction is simultaneously in multiple rows of axial direction
Column mode is arranged on the outer round surface of cylindrical sleeve.Machining should ensure that part surface smoothness with higher is wanted
It asks, avoids causing biggish windage fuel factor because roughness is excessively high, so as to cause harmful temperature rise of lubricating oil.According to using need
It asks, aperture, hole count and the arrangement that pair gets rid of oilhole can advanced optimize.The main aperture for getting rid of oilhole 44 is greater than pair and gets rid of oilhole
42.The main oilhole 44 that gets rid of is the key structural feature for realizing lubricating oil Oil-gas Separation.Its biggish aperture is to realize lubricating oil in oil accumulation slot
The key smoothly thrown away.The effect that pair gets rid of oilhole 42 is to realize that the pressure of oil accumulation slot is balanced and oil accumulation slot is interior to accumulate the fast of lubricating oil
Speed is overflowed.According to use demand, in conjunction with the actual conditions of the intracavitary lubricating oil fuel delivery of bearing, master gets rid of oilhole 44 and may be designed to expanding
Pass.In actual use, it can according to need and realize optimal liquid lubricating oil barrier effect with the oily boss 45 of gear of different height
Fruit.Keeping off oily boss 45 has certain altitude and is in domain structure, can reduce bearing intracavity liquid lubricating oil and internally divulge information tube socket
The risk of leakage is got rid of in oilhole and for liquid lubricating oil is avoided to flow into a manner of flood irrigation.
After Oil-gas Separation component 4 is assemblied in the outer round surface of low-voltage high speed spin axis 8, the inner circle weekly form of Oil-gas Separation component 4
Oil accumulation slot 46 is formed between face and the outer round surface of low-voltage high speed spin axis 8.The application principle of Oil-gas Separation component 4 is: fuel feeding spray
Mouth 7 sprays to the lubricating oil of bearing inner ring runway, after a part of cooling bearing, can be significantly atomized under high-temperature bearing heat effect to
Form the bearing bore condition of mist environment.And another part may still can exist with the state of high-temp liquid lubricating oil.And high temperature
The accumulation and movement of liquid lubricating oil, can be by effective " throwing is got rid of ", the design of oil-break slot 43 under the rotation effect that pair gets rid of oilhole 42
It is then the rotating boosting effect for continuing to get rid of the flowing of oilhole to master and eliminate oil film in order to avoid liquid lubricating oil, avoids liquid lubricating oil
The pipe sleeve divulged information into axle center.In addition, the structure for keeping off oily boss 45 can be further improved the main Oil-gas Separation got rid of at oilhole 44
Effect.Under the comprehensive effect of these structures design, the liquid lubricating oil in oil accumulation slot 46 will be greatly reduced, thus real
The Oil-gas Separation of bearing bore is showed.
" cleaning " gas in upstream bearing bore through Oil-gas Separation can by ventilation tube socket 5 and axle center air pipeline 9 after
The chamber movement of continuous downstream bearing bore, so that the equilibrium of the axle center ventilation and pressure of different bearing bores is realized, when reducing ventilation
Mist of oil ratio in air-flow, improves the ventilation effect of bearing bore and the mist of oil separation for reducing the outer oil mist separator of engine block is wanted
It asks.This further decreases the ground gas turbine of lube use rate or aero-engine for pursuit, and there is important engineering to answer
With value.
Further, realization with this configuration can effectively simplify the exterior line of engine, realize the interior of bearing bore
Portion's gravity-flow ventilation.This is reliable for the structural complexity of reduction engine or ground combustion machine, promotion engine or ground combustion machine
Property also has great importance.
In addition, by being adjusted to design parameter optimization, for example hole count to Oil-gas Separation and ventilation integral structure, Kong Zhi
Diameter and boss height are adjusted, and Oil-gas Separation/ventilation of high speed rotation bearing chamber can be better achieved.
Compared with traditional structure, by cleverly designing, it is of the invention may be implemented the external mist of oil separation of bearing bore and
The integration of two kinds of functions of axle center ventilation, can more effectively realize engine, ground gas turbine high speed rotation bearing chamber
Chamber pressure balance.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different.The equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is wrapped
It includes in the scope of protection of the patent of the present invention.Those skilled in the art can be to described specific implementation
Example is done various modifications or additions or is substituted in a similar manner, and without departing from structure of the invention or surmounts this
Range as defined in the claims, is within the scope of protection of the invention.
Claims (7)
1. a kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure, the bearing bore is high engine speeds rotation
Turn bearing bore, an at least bearing and Oil-gas Separation component be provided in the bearing bore, which is characterized in that
-- the Oil-gas Separation component is integrally in a cylindrical sleeve, is assemblied on the outer round surface of high engine speeds rotary shaft,
Space between the inner circumferential surface of the cylindrical sleeve and the outer round surface of high-speed rotating shaft forms oil accumulation slot；
Oilhole is got rid of equipped with master in the cylindrical outer circumferential face of the Oil-gas Separation component, pair gets rid of oilhole and multiple tracks circumferentially
Oil-break slot；
The master gets rid of oilhole, the secondary oilhole that gets rid of is arranged on the outer round surface of the cylindrical sleeve in discrete shape, and the master gets rid of
The aperture of oilhole is greater than pair and gets rid of oilhole；
The master gets rid of oilhole, the secondary one end connection bearing bore for getting rid of oilhole, and the other end is connected to oil accumulation slot；
The master gets rid of the gear oil boss that oilhole has certain altitude, breaks if being provided with described in arterial highway in the two sides for keeping off oily boss
Oil groove；
-- the high-speed rotating shaft is hollow structure, is provided with ventilation tube socket and air pipeline, described ventilation tube socket one end
Be connected to the oil accumulation slot, the other end by with the air pipeline and the intracavitary Oil-gas Separation members of downstream bearing, from
And realize the bearing bore axle center ventilation of multiple bearing chamber.
2. engine bearing chamber Oil-gas Separation according to claim 1 and multiple bearing chamber axle center aeration structure, feature exist
In the master gets rid of oilhole, pair gets rid of that oilhole is equidistant, multiple rows of circumferentially staggered in multiple rows of axial direction or multiple rows of circumferential juxtaposition is arranged in
On the outer round surface of the cylindrical sleeve.
3. engine bearing chamber Oil-gas Separation according to claim 1 and multiple bearing chamber axle center aeration structure, feature exist
In the master gets rid of the pass that oilhole is expanding.
4. engine bearing chamber Oil-gas Separation according to claim 1 and multiple bearing chamber axle center aeration structure, feature exist
In the oily boss of the gear has certain altitude and is in domain structure.
5. engine bearing chamber Oil-gas Separation according to claim 1 and multiple bearing chamber axle center aeration structure, feature exist
In one end of the cylindrical sleeve, which is provided with to pull out, unloads slot, and the other end is provided with positioning surface, utilizes the axis at cylindrical sleeve both ends
Hold the positioning that positioning cylindrical surface realizes the cylindrical sleeve.
6. engine bearing chamber Oil-gas Separation according to claim 1 and multiple bearing chamber axle center aeration structure, feature exist
In the cylindrical sleeve is assemblied on the outer round surface of the high-speed rotating shaft by way of interference fit.
7. engine bearing chamber Oil-gas Separation according to any one of claims 1 to 6 and multiple bearing chamber axle center aeration structure,
It is characterized in that, the engine is gas turbine or aero-engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051202.2A CN106837553B (en) | 2017-01-23 | 2017-01-23 | A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051202.2A CN106837553B (en) | 2017-01-23 | 2017-01-23 | A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure |
Publications (2)
| Publication Number | Publication Date |
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| CN106837553A CN106837553A (en) | 2017-06-13 |
| CN106837553B true CN106837553B (en) | 2019-02-15 |
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| CN201710051202.2A Active CN106837553B (en) | 2017-01-23 | 2017-01-23 | A kind of engine bearing chamber Oil-gas Separation and multiple bearing chamber axle center aeration structure |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246327B (en) * | 2017-07-10 | 2019-02-15 | 中国科学院工程热物理研究所 | One kind can be used for aeration structure and engine between the intracorporal multiple bearing chamber of engine |
| CN108361111A (en) * | 2018-03-06 | 2018-08-03 | 中国航发哈尔滨东安发动机有限公司 | A kind of gas oil separation structure |
| CN109322747B (en) * | 2018-12-14 | 2024-02-02 | 哈尔滨广瀚动力技术发展有限公司 | Static air separator of gas turbine lubricating oil system |
| US11162421B2 (en) | 2019-10-22 | 2021-11-02 | Pratt & Whitney Canada Corp. | Bearing cavity and method of evacuating oil therefrom |
| CN114165333B (en) * | 2020-09-11 | 2023-07-18 | 中国航发商用航空发动机有限责任公司 | Aero-engine |
| CN112473189B (en) * | 2020-10-21 | 2022-04-05 | 西北工业大学 | Aircraft engine and centrifugal axis oil-gas separation device and method thereof |
| CN114837813B (en) * | 2021-02-02 | 2023-08-22 | 中国航发商用航空发动机有限责任公司 | Gas turbine engine and bearing cavity pressure adjusting device thereof |
| CN114483801B (en) * | 2022-01-29 | 2022-12-09 | 中国航发湖南动力机械研究所 | Common-cavity type aero-engine bearing seat and aero-engine with same |
| 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 |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202628598U (en) * | 2012-06-12 | 2012-12-26 | 沈阳鼓风机通风设备有限责任公司 | Sealing assembly of sliding bearing pack of fan |
| JP6218234B2 (en) * | 2014-03-28 | 2017-10-25 | 本田技研工業株式会社 | Gas turbine engine bearing lubrication structure |
| CN105863847B (en) * | 2016-04-13 | 2018-05-22 | 中国科学院工程热物理研究所 | A kind of bearing bore axle center aeration structure and the gas-turbine unit with the structure |
| CN106224100B (en) * | 2016-09-02 | 2018-09-04 | 中国科学院工程热物理研究所 | lantern ring |
| CN106285957B (en) * | 2016-09-13 | 2017-11-17 | 中国科学院工程热物理研究所 | Pre- seal structure |
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