CN205422872U - Metal foam centrifugation ventilator - Google Patents
Metal foam centrifugation ventilator Download PDFInfo
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- CN205422872U CN205422872U CN201521046590.8U CN201521046590U CN205422872U CN 205422872 U CN205422872 U CN 205422872U CN 201521046590 U CN201521046590 U CN 201521046590U CN 205422872 U CN205422872 U CN 205422872U
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- aerarium
- metal foam
- ventilator
- housing
- centrifugation
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Abstract
The utility model relates to a centrifugation ventilator structure, this structure centrifugation ventilator is different to some extent with conventional impeller formula centrifugation ventilator on the separating mechanism to oil -gas mixture, and the further improvement oil -gas separation efficiency of ability is applicable to various types of aeroengine and gas turbine. A metal foam centrifugation ventilator, characterized by, its after by ventilator casing, ventilator lid and metal foam constitute, the utility model provides a metal foam centrifugation ventilator, its is integrated inside engine annex machine casket, and simple structure, contour dimension is little, the manufacturability good, the assembly of being convenient for, can effectively improve the consumption of engine lubricating oil, improves lubricating system's reliability to satisfy the aeroengine of different grade type and the demand that the low lubricating oil of gas turbine consumed.
Description
Technical field
This utility model relates to a kind of eccentric contract structure, this structure eccentric contract is different with conventional propeller type centrofugal aerarium on the separating mechanism to gas mixture, can further improve oil-gas separation efficiency, it is adaptable to various types of aero-engines and gas turbine.
Background technology
Eccentric contract is the core component of Aero-engine Bearing chamber ventilating system, is the outlet of ventilating system.During the work of conventional leaf wheeled eccentric contract, utilize centrifugal force and lubricating oil with the density contrast of air, the lubricating oil drop in gas mixture to be separated, the most lubricating oil in gas mixture is separated, and then reduce the lube use rate of electromotor.At present, domestic and international aero-engine lubricating system eccentric contract is broadly divided into three types: centrifuge formula aerarium, vane type aerarium, axle center aerarium.Centrifuge formula aerarium is made up of rotor, housing and spring bearing etc., is a complete adnexa, but structure is complicated, need special drive mechanism to drive and need individually to consume certain power, be unfavorable for that loss of weight designs, and application gradually decreases；Vane type aerarium simple in construction, is usually placed in inside accessory drive gearbox, applies relatively broad, but the difficult further raising of separation efficiency；Axle center aerarium mainly by engine spindle as the exhaust passage of bearing bore, aerarium is installed on main shaft or is integrated with spindle design, this arrangement eliminates special aerarium drive system and the ventilation duct of external engine, thus can alleviate the weight of electromotor, but its separation efficiency is relatively low engine speed is relatively low when.
When metal foam eccentric contract separating mechanism is mainly streamed with fluid by the lubricating oil drop that the contact detention of the loose structure of metal foam is tiny, if streamline is against body surface, some drop is referred to as contacting detention by the phenomenon of detention and forms lubricating oil liquid film because coming in contact with object rather than form liquid film by aerarium impeller with tiny lubricating oil droplet collision.Under the effect of bearing bore inside and outside differential pressure, gas mixture enters inside the metal foam eccentric contract of high speed rotating, owing to the specific surface area of metal foam is bigger, tiny lubricating oil drop easily and metal foam come in contact and by detention, gathered by little lubricating oil drop and form big lubricating oil drop, and then form liquid film.Owing to metal foam has loose structure and leads to being connected with in all directions, therefore under the effect of the centrifugal force formed at high speed rotating, lubricating oil liquid film throws away along eccentric contract radially oil-out, enters inside accessory drive gearbox.Due to conventional leaf wheeled eccentric contract simple in construction, its separation efficiency difficulty to be improved further big.Therefore, the metal foam eccentric contract developing high separating efficiency has become the research topic that oil system is important.
Summary of the invention
The purpose of this utility model:
In order to further reduce motor oil consumption, meet requirement when aeroplane engine captain navigates, reduce motor oil carrying amount and the volume of oil tank, alleviate the weight of electromotor.This utility model provides a kind of metal foam eccentric contract, it is integrated in inside engine accessory power rating casing, simple in construction, contour dimension are little, good manufacturability, be easy to assembling, the consumption of motor oil can be effectively improved, improve the reliability of lubricating system, thus meet different types of aero-engine and the demand of gas turbine low lubricating oil consumption.
Technical scheme:
A kind of metal foam eccentric contract, it is made up of aerarium housing, aerarium bonnet and metal foam.
Aerarium housing and the fixing connection of aerarium bonnet, all having 3 uniform kidney-shaped air inlets on the shell of aerarium housing and aerarium bonnet end face, under the effect of bearing bore inside and outside differential pressure, gas mixture enters inside aerarium from the kidney-shaped air inlet of aerarium front/rear end.Uniform 9 the radial direction oil outlets of aerarium housing center bottom circumference, for separating the lubricating oil liquid film formed by detention in metal foam.3 big passages are opened, for being discharged smoothly by the gas in gas mixture at aerarium housing inner shell.Uniform 3 of enclosure interior strengthens dividing plate, strengthens dividing plate for 3 and forms 3 internal cavities, is filled in respectively among internal cavities by metal foam, and dividing plate is used for strengthening aerarium intensity and preventing metal foam from relatively rotating with aerarium housing.
The beneficial effects of the utility model:
Eccentric contract is to ensure that the vitals that Aero-Engine Lubrication System can normally work, the height of eccentric contract separation efficiency directly affect the size of motor oil consumption.For circulating oil system, if aerarium separation efficiency is the highest, along with the lubricating oil drop of air escape is too much, lube use rate is excessive, will directly affect the normal work of electromotor.Metal foam eccentric contract, relative to traditional centrifuge formula eccentric contract, its small volume, decrease the demand to extra power input, and can be integrated into inside engine accessory power rating casing and simplify structure further, it is easy to assembling, reduce processing and manufacturing cost.Relative to traditional propeller type centrofugal aerarium, this device has the design that metal foam is filled, loose structure plus metal foam itself can be sufficiently by the lubricating oil drop detention of disperse in ventilation path, and then by radially oil outlet separation under the effect of centrifugal force that produces at aerarium high speed rotating of the liquid film formed.The wheeled eccentric contract of conventional leaf is to be collided formation liquid film by the drop in the impeller of high speed rotating and gas mixture, then separates, by the effect of centrifugal force, the liquid film being collected on impeller.The collision of impeller and drop easily causes the second-time breakage of drop, forms less drop, when liquid-drop diameter is little to a certain extent, it is impossible to is vented device and separates.On separating mechanism, metal foam eccentric contract and propeller type centrofugal aerarium are different, be more beneficial for the separation of gas mixture, therefore separation efficiency is higher.
Metal foam eccentric contract cannot only be applied to, in the aero-engine newly developed, can also be applied to the modified model of active service electromotor.Although metal foam eccentric contract is developed for aero-engine, but it can apply to, in the environment that turbine oil system etc. needs to carry out Oil-gas Separation, to have boundless application prospect, have good promotional value.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of metal foam eccentric contract the first embodiment of the present invention；
Accompanying drawing 2 is the sectional view of metal foam aerarium housing.
Detailed description of the invention
Below by detailed description of the invention, the present invention is described in further detail:
Embodiment 1:
Referring to accompanying drawing 1, it is the structural representation of one better embodiment of metal foam eccentric contract of the present invention.Metal foam eccentric contract is made up of aerarium bonnet 1, aerarium housing 2, metal foam 3.Gas mixture under the effect of bearing bore inside and outside differential pressure from aerarium housing and bonnet end face uniform 3 at enter at mounting hole 6 and 5 inside the metal foam aerarium of high speed rotating, air that density is little and the relatively small lubricating oil drop of diameter are discharged through the metal foam draft outlet from pressure less aerarium axle center, enter air.Lubricating oil drop entrance metal foam aerarium inside and metal foam that diameter is relatively large collide detention in metal foam, it is interconnected owing to metal foam has between loose structure attribute and Kong Yukong, therefore its specific surface area is bigger, more and more lubricating oil drops collide with metal foam, can gradually form big lubricating oil drop even liquid film therein.Under centrifugal action, the lubricating oil that density is bigger flows outward, forms oil film in aerarium inner walls face, and finally the oil outlet 7 from metal foam eccentric contract housing throws away.See accompanying drawing 2 between inner shell and the shell of metal foam aerarium housing 2 and there are 3 reinforcement dividing plates 11, not only act as the effect strengthening aerarium intensity, can also effectively prevent from producing relative motion with metal foam during aerarium high speed rotating, it is to avoid metal foam produces friction with aerarium housing.There are on the inner shell of metal foam aerarium housing 23 large-area air vents 4, be possible not only to increase the circulation area of aerarium, reduce the circulating resistance of aerarium, it is also possible to alleviate the weight of aerarium.9 oil outlets 7 are opened, it is ensured that the lubricating oil liquid film gathering formation in metal foam can be separated in accessory drive gearbox in time at aerarium housing central section.Mounting groove 8 in accompanying drawing 1, at circumference uniform 3, it is simple to used during installation.At in accompanying drawing 19,10 liang, position is aerarium housing and aerarium bonnet weld.The PPI value of the metal foam of metal foam internal structure is 45, represents that the number of perforations of the metal foam in each inchage is 45, and the distance between Kong Yukong is about 0.5mm.From metal foam internal structure schematic diagram it appeared that, it has between loose structure attribute and Kong Yukong and is interconnected, and specific surface area is bigger, along with air enters the easier contact that collides therewith of lubricating oil drop of metal foam, lubricating oil is easily stayed and air separation, therefore gas mixture is easier to separate.
Above-mentioned embodiment discloses a better embodiment of metal foam eccentric contract of the present invention, but the invention is not restricted to above-mentioned embodiment, can also be improved further on the basis of disclosed in above-mentioned embodiment.As 3 reinforcement dividing plates 11 in aerarium housing 2 in the present invention can reasonably be improved by analysis and calculating according to the actual requirements, make 3 anti-rotation pins into and pass metal foam and housing and bonnet welding, so foam metal does integral, just need not individually cutting.
Claims (1)
1. a metal foam eccentric contract, is characterized in that, it is made up of aerarium housing, aerarium bonnet and metal foam；
Aerarium housing and the fixing connection of aerarium bonnet, all having 3 uniform kidney-shaped air inlets on the shell of aerarium housing and aerarium bonnet end face, under the effect of bearing bore inside and outside differential pressure, gas mixture enters inside aerarium from the kidney-shaped air inlet of aerarium front/rear end；Uniform 9 the radial direction oil outlets of aerarium housing center bottom circumference, for separating the lubricating oil liquid film formed by detention in metal foam；3 big passages are opened, for being discharged smoothly by the gas in gas mixture at aerarium housing inner shell；Uniform 3 of enclosure interior strengthens dividing plate, strengthens dividing plate for 3 and forms 3 internal cavities, is filled in respectively among internal cavities by metal foam, and dividing plate is used for strengthening aerarium intensity and preventing metal foam from relatively rotating with aerarium housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046590.8U CN205422872U (en) | 2015-12-15 | 2015-12-15 | Metal foam centrifugation ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521046590.8U CN205422872U (en) | 2015-12-15 | 2015-12-15 | Metal foam centrifugation ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422872U true CN205422872U (en) | 2016-08-03 |
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ID=56536862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521046590.8U Active CN205422872U (en) | 2015-12-15 | 2015-12-15 | Metal foam centrifugation ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205422872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621578A (en) * | 2016-12-21 | 2017-05-10 | 中国燃气涡轮研究院 | Axial admission centrifugal ventilator |
| CN112469889A (en) * | 2018-07-05 | 2021-03-09 | 赛峰集团 | Component with a filter screen for a centrifugal aerator of a turbomachine |
-
2015
- 2015-12-15 CN CN201521046590.8U patent/CN205422872U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621578A (en) * | 2016-12-21 | 2017-05-10 | 中国燃气涡轮研究院 | Axial admission centrifugal ventilator |
| CN106621578B (en) * | 2016-12-21 | 2019-05-14 | 中国燃气涡轮研究院 | A kind of axial admission eccentric contract |
| CN112469889A (en) * | 2018-07-05 | 2021-03-09 | 赛峰集团 | Component with a filter screen for a centrifugal aerator of a turbomachine |
| CN112469889B (en) * | 2018-07-05 | 2022-12-13 | 赛峰集团 | Component with a filter screen for a centrifugal aerator of a turbomachine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610500 Xindu Xuefu Road, Xindu District, Chengdu, Sichuan Patentee after: AECC SICHUAN GAS TURBINE Research Institute Address before: 621703 operation monitoring department, Jiangyou 305 mailbox, Mianyang City, Sichuan Province Patentee before: CHINA GAS TURBINE EST |
|
| CP03 | Change of name, title or address |