CN208734439U - A kind of microminiature turbine engine integration axle sleeve oil supply system - Google Patents
A kind of microminiature turbine engine integration axle sleeve oil supply system Download PDFInfo
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- CN208734439U CN208734439U CN201821321084.9U CN201821321084U CN208734439U CN 208734439 U CN208734439 U CN 208734439U CN 201821321084 U CN201821321084 U CN 201821321084U CN 208734439 U CN208734439 U CN 208734439U
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- carbocyclic ring
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Abstract
The utility model relates to microminiature turbine technical field of engines, and in particular to a kind of microminiature turbine engine integration axle sleeve oil supply system.Its main feature is that including sleeve body, sleeve body is mounted on an axle by bearing, sleeve body front end is connected with diffuser, preceding carbocyclic ring is provided between sleeve body front end and axis, preceding carbocyclic ring is mounted on the sleeve of axis by front apron and preceding carbocyclic ring housing, sleeve body rear end is connected with nozzle ring, rear carbocyclic ring is provided between sleeve body rear end and axis, carbocyclic ring is mounted on an axle by rear baffle and rear carbocyclic ring housing afterwards, the bearing is mounted on the bearing spider in sleeve body, oilhole is provided on bearing spider, oilhole is connected with the cavity that sleeve body and axis are formed, fuel nozzle and oil inlet are additionally provided on sleeve body, fuel nozzle and oil inlet are connected with cavity.Requirement which reduce engine to bearing improves the service life of bearing, reduces the maintenance cost of engine.
Description
Technical field
The utility model relates to microminiature turbine technical field of engines, and in particular to a kind of microminiature turbine engine one
Body axle sleeve oil supply system.
Background technique
With the opening of domestic low clearance area in recent years, various types aircraft is rapidly developed, while dynamic as aircraft
The engine in power source also obtains sufficient development.Current consumption grade aircraft mainly uses battery driven motor as power source, and
Technical grade aircraft, large-scale model plane, navigation/unmanned plane etc. are small mainly using microminiature turbine engine as power device
Type turbogenerator is different from conventional turbo engine, essentially consists in using single stage centrifugal compressor and single-stage axial or centripetal
Turbine structure has many advantages, such as that structure is simple, thrust ratio is big.Microminiature turbine engine mainly includes microminiature turbine jet hair
The microminiature turbines engines such as motivation, microminiature turbine Duct-Burning Turbofan and microminiature turbine airscrew engine.
Traditional microminiature turbine engine fuel system mainly includes two parts, respectively oil system and Fuel System
System, be all made of to be copper pipe or stainless steel tube design as oil circuit, pipeline structure is complicated, installation inconvenience, fabrication design at
This height, it is maintainable poor.
Summary of the invention
The purpose of this utility model is that the deficiencies in the prior art is avoided to provide a kind of microminiature turbine engine integration
Axle sleeve oil supply system, to solve problems of the prior art.
To achieve the above object, a kind of technical solution that the utility model is taken are as follows: microminiature turbine engine
Integrated axle sleeve oil supply system, its main feature is that including sleeve body, sleeve body is mounted on an axle by bearing, before sleeve body
End is connected with diffuser, and preceding carbocyclic ring is provided between sleeve body front end and axis, and preceding carbocyclic ring passes through front apron and preceding carbocyclic ring housing
It is mounted on the sleeve of axis, sleeve body rear end is connected with nozzle ring, and rear carbon is provided between sleeve body rear end and axis
Ring, rear carbocyclic ring are mounted on an axle by rear baffle and rear carbocyclic ring housing, and the bearing is mounted on the bearing branch in sleeve body
On seat, oilhole is provided on bearing spider, oilhole is connected with the cavity that sleeve body and axis are formed, also sets up on sleeve body
There are fuel nozzle and oil inlet, fuel nozzle and oil inlet are connected with cavity.
The sleeve body front end is fixedly linked by screw and diffuser, and sleeve body rear end passes through screw and turbine
Guider is fixedly linked, and preceding spring is provided between preceding carbocyclic ring and preceding carbocyclic ring housing, is arranged between rear carbocyclic ring and rear carbocyclic ring housing
There is rear spring, the front apron is fixed and clamped by diffuser inward flange, and rear baffle is fixed by nozzle ring inward flange
It compresses.
Carbocyclic ring housing groove before corresponding shaft bearing is provided with is put on outside the preceding carbocyclic ring, outer race passes through preceding carbocyclic ring housing
Positioning, carbocyclic ring housing positioning pin before the location hole that preceding carbocyclic ring puts on corresponding preceding carbocyclic ring outside is provided with；Correspondence is put on outside carbocyclic ring afterwards
Bearing is provided with rear carbocyclic ring housing groove, and outer race is positioned by rear carbocyclic ring housing, and carbocyclic ring after corresponding to is put on outside rear carbocyclic ring
Location hole is provided with rear carbocyclic ring housing positioning pin, and the fuel nozzle is arranged on the sleeve body outside rear carbocyclic ring housing,
Oilhole is connected by rear carbocyclic ring housing with fuel nozzle, and fuel nozzle is connected by threaded hole with axle sleeve shell, fuel nozzle
Inside cavity oil liquid is sprayed onto engine chamber evaporation tube.
It is separately provided for that four springs installation of preceding spring and rear spring is installed on the preceding carbocyclic ring and rear carbocyclic ring
Hole, preceding carbocyclic ring and rear carbocyclic ring generate pretightning force by preceding spring and rear spring respectively and realize sealing；Preceding carbocyclic ring and rear carbocyclic ring it is interior
Ring surface, which is divided equally, is provided with sealed groove, and fuel oil forms turbulent step pressure reducing inside sealed groove and realizes sealing；Preceding carbocyclic ring and
The gap of 0.01~0.04mm is set between carbocyclic ring internal diameter and axis afterwards, oil film can be generated under the action of oil by carbocyclic ring and holds up realization
Sealing；The range of preceding carbocyclic ring and rear carbocyclic ring work temperature are as follows: -120 DEG C of 500 DEG C of < T <, the range of pressure P: -0.8bar < P
< 75bar.
The beneficial effects of the utility model are: a kind of microminiature turbine engine integration axle sleeve oil supply system,
It eliminates lubricant oil way design, simplifies the complicated oil circuit design of engine combustion oil system；Using integrated module
Fuel nozzle structure eliminates complicated oil line pipe design, not only facilitates installing and dismounting, but also can replace, improve microminiature whirlpool
The maintainability of turbine is utmostly cooled down and has been lubricated to bearing, is reduced requirement of the engine to bearing, is mentioned
In the high service life of bearing, reduce the maintenance cost of engine.
Detailed description of the invention
Fig. 1 is the utility model schematic cross-sectional view；
Fig. 2 is the axle sleeve schematic diagram of housing structure of the utility model；
Fig. 3 is the preceding carbocyclic ring jacket structure schematic diagram of the utility model；
Fig. 4 is the rear carbocyclic ring jacket structure schematic diagram of the utility model；
Fig. 5 is the front and back carbocyclic ring schematic view of the front view of the utility model；
Fig. 6 is Fig. 5 schematic cross-sectional view of the utility model.
It is as shown in the figure: 1, diffuser；2, front apron；3, preceding carbocyclic ring housing；31, preceding carbocyclic ring housing positioning pin；32, preceding carbocyclic ring
Housing groove；4, sleeve；5, sleeve body；51, oilhole；52, bearing spider；53. cavity；6, axis；7, rear carbocyclic ring housing；71,
Carbocyclic ring housing positioning pin afterwards；72, rear carbocyclic ring housing groove；8, fuel nozzle；9, preceding carbocyclic ring；91, location hole；92, spring is installed
Hole；93, sealed groove；10, preceding spring；11, oil inlet；12, bearing；13, rear baffle；14, nozzle ring；15, rear carbocyclic ring；
16, rear spring.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figures 1 to 6, a kind of microminiature turbine engine integration axle sleeve oil supply system, its main feature is that packet
Sleeve body 5 is included, sleeve body 5 is mounted on axis 6 by bearing 12, and 5 front end of sleeve body is connected with diffuser 1, axle sleeve sheet
Carbocyclic ring 9 before being provided between 5 front end of body and axis 6, preceding carbocyclic ring 9 are mounted on the sleeve 4 of axis 6 by front apron 2 and preceding carbocyclic ring housing 3
On, 5 rear end of sleeve body is connected with nozzle ring 14, and rear carbocyclic ring 15, rear carbon are provided between 5 rear end of sleeve body and axis 6
Ring 15 is mounted on axis 6 by rear baffle 13 and rear carbocyclic ring housing 7, and the bearing 2 is mounted on the bearing branch in sleeve body 5
On seat 52, oilhole 51 is provided on bearing spider 52, oilhole 51 is connected with the cavity 53 that sleeve body 5 and axis 6 are formed, axle sleeve
Fuel nozzle 8 and oil inlet 11 are additionally provided on ontology 5, fuel nozzle 8 and oil inlet 11 are connected with cavity 53.
5 front end of sleeve body is fixedly linked by screw with diffuser 1,5 rear end of sleeve body by screw and
Nozzle ring 14 is fixedly linked, spring 10 before being provided between preceding carbocyclic ring 9 and preceding carbocyclic ring housing 3, rear carbocyclic ring 15 and rear carbocyclic ring
Rear spring 16 is provided between housing 7, the front apron 2 is fixed and clamped by 1 inward flange of diffuser, and rear baffle 13 passes through whirlpool
Wheel 14 inward flange of guider is fixed and clamped.
Carbocyclic ring housing groove 32 before corresponding shaft bearing 12 is provided on the preceding carbocyclic ring housing 3, before 12 outer ring of bearing passes through
Carbocyclic ring housing 3 positions, carbocyclic ring housing positioning pin 31 before the location hole 91 on preceding carbocyclic ring housing 3 on corresponding preceding carbocyclic ring 9 is provided with；Afterwards
Corresponding shaft bearing is provided with rear carbocyclic ring housing groove 72 on carbocyclic ring housing 7, and outer race is positioned by rear carbocyclic ring housing 7, rear carbocyclic ring
The location hole of carbocyclic ring 15 is provided with rear carbocyclic ring housing positioning pin 71 after corresponding on housing 7, and the fuel nozzle 8 is arranged in rear carbon
On sleeve body 5 outside ring housing 7, oilhole 51 is connected by rear carbocyclic ring housing 7 with fuel nozzle 8, and fuel nozzle 8 passes through
Threaded hole is connected with axle sleeve shell 5, and 53 internal oil of cavity is sprayed onto engine chamber evaporation tube by fuel nozzle 8.
It is separately provided for that four bullets of preceding spring 10 and rear spring 16 are installed on the preceding carbocyclic ring 9 and rear carbocyclic ring 15
Spring mounting hole 92, preceding carbocyclic ring 9 and rear carbocyclic ring 15 generate pretightning force by preceding spring 10 and rear spring 16 respectively and realize sealing；Preceding carbon
The inner ring surface of ring 9 and rear carbocyclic ring 15, which is divided equally, is provided with sealed groove 93, and fuel oil forms turbulent flow step by step inside sealed groove 93
Sealing is realized in decompression；The gap of 0.01~0.04mm is set between preceding carbocyclic ring 9 and 15 internal diameter of rear carbocyclic ring and axis 6, in the effect of oil
Under can generate oil film by carbocyclic ring hold up realize sealing；The range of 15 work temperature of preceding carbocyclic ring 9 and rear carbocyclic ring are as follows: -120 DEG C of < T <
500 DEG C, the range of pressure P: -0.8bar < P < 75bar.
A kind of microminiature turbine engine axle sleeve, in use, bearing 12 is attached first to the bearing of sleeve body 5
Above support 52, it is adjacent to 12 outer ring of bearing at the preceding carbocyclic ring housing groove 32 of preceding carbocyclic ring housing 3, preceding spring 10 and rear spring 16 divide
It is not mounted in preceding carbocyclic ring 9 and the corresponding spring mounting hole 92 of rear carbocyclic ring 15, meanwhile, by determining on preceding carbocyclic ring 9 and rear carbocyclic ring 15
Position hole 91 is mounted on corresponding preceding carbocyclic ring housing positioning pin 31 and rear carbocyclic ring housing positioning pin 71, and front apron 2 connects with preceding carbocyclic ring 9
The positioning of axle sleeve shell 5 is touched and passed through, is adjacent to 12 outer ring of bearing, rear baffle 13 at the rear carbocyclic ring housing groove 72 of rear carbocyclic ring housing 7
It contacts with rear carbocyclic ring 15 and is positioned by axle sleeve shell 5.In the present embodiment, microminiature turbine engine fuel system by into
Hydraulic fluid port 11 imports all combustion lubricating oil mixed liquors inside seal cavity 53, is fully cooled to 12 component of bearing, then fires
The oilhole 51 on bearing spider 16 that lubricating oil mixed liquor a part passes through 5 inner right side of sleeve body, a part pass through bearing 12
Inner and outer ring ball gap arrives fuel nozzle 8 by the way that rear carbocyclic ring housing groove 72 is defeated, finally oil liquid is sprayed onto combustion chamber and is fired
It burns.Lubricant oil way is eliminated, combustion lubricating oil mixed liquor (lubricating oil ratio is 5%) is all passed through into a shorter oil inlet oil circuit
It is passed directly to sealing axle sleeve, lubricating oil mixed liquor then will be fired by fuel nozzle and inject combustion chamber.It is all logical to fire lubricating oil mixed liquor
Crossing sealing axle sleeve can make microminiature turbine engine axle sleeve internal bearings component utmostly be cooled down and be lubricated, so that small
Type turbogenerator service life and maintenance cost are improved, while simplifying the oil supply system of microminiature turbine engine.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of microminiature turbine engine integration axle sleeve oil supply system, its main feature is that including sleeve body, sleeve body is logical
It crosses bearing to be mounted on an axle, sleeve body front end is connected with diffuser, and preceding carbocyclic ring is provided between sleeve body front end and axis, preceding
Carbocyclic ring is mounted on the sleeve of axis by front apron and preceding carbocyclic ring housing, and sleeve body rear end is connected with nozzle ring, axle sleeve
Rear carbocyclic ring is provided between ontology rear end and axis, rear carbocyclic ring is mounted on an axle by rear baffle and rear carbocyclic ring housing, the axis
It holds on the bearing spider being mounted in sleeve body, oilhole is provided on bearing spider, oilhole is formed with sleeve body and axis
Cavity is connected, and fuel nozzle and oil inlet are additionally provided on sleeve body, and fuel nozzle and oil inlet are connected with cavity.
2. a kind of microminiature turbine engine integration axle sleeve oil supply system as described in claim 1, which is characterized in that described
Sleeve body front end be fixedly linked by screw and diffuser, sleeve body rear end passes through screw and nozzle ring stationary phase
Even, it is provided with preceding spring between preceding carbocyclic ring and preceding carbocyclic ring housing, rear spring is provided between rear carbocyclic ring and rear carbocyclic ring housing, it is described
Front apron be fixed and clamped by diffuser inward flange, rear baffle is fixed and clamped by nozzle ring inward flange.
3. a kind of microminiature turbine engine integration axle sleeve oil supply system as claimed in claim 1 or 2, which is characterized in that
Carbocyclic ring housing groove before corresponding shaft bearing is provided with is put on outside the preceding carbocyclic ring, outer race is positioned by preceding carbocyclic ring housing, preceding
Carbocyclic ring housing positioning pin before the location hole on corresponding preceding carbocyclic ring is provided with is put on outside carbocyclic ring；Corresponding shaft bearing setting is put on outside carbocyclic ring afterwards
There is rear carbocyclic ring housing groove, outer race is positioned by rear carbocyclic ring housing, and the location hole that carbocyclic ring after corresponding to is put on outside rear carbocyclic ring is set
It is equipped with rear carbocyclic ring housing positioning pin, the fuel nozzle is arranged on the sleeve body outside rear carbocyclic ring housing, and oilhole passes through
Carbocyclic ring housing is connected with fuel nozzle afterwards, and fuel nozzle is connected by threaded hole with axle sleeve shell, and fuel nozzle will be in cavity
Portion's oil liquid is sprayed onto engine chamber evaporation tube.
4. a kind of microminiature turbine engine integration axle sleeve oil supply system as claimed in claim 3, which is characterized in that described
Preceding carbocyclic ring and rear carbocyclic ring on be separately provided for installing four spring mounting holes of preceding spring and rear spring, preceding carbocyclic ring and after
Carbocyclic ring generates pretightning force by preceding spring and rear spring respectively and realizes sealing；The inner ring surface of preceding carbocyclic ring and rear carbocyclic ring, which is divided equally, to be arranged
There is sealed groove, fuel oil forms turbulent step pressure reducing inside sealed groove and realizes sealing；Preceding carbocyclic ring and rear carbocyclic ring internal diameter and axis
Between be arranged 0.01~0.04mm gap, can be generated under the action of oil oil film by carbocyclic ring hold up realize sealing；Preceding carbocyclic ring and
The range of carbocyclic ring work temperature afterwards are as follows: -120 DEG C of 500 DEG C of < T <, the range of pressure P: -0.8bar < P < 75bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321084.9U CN208734439U (en) | 2018-08-16 | 2018-08-16 | A kind of microminiature turbine engine integration axle sleeve oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821321084.9U CN208734439U (en) | 2018-08-16 | 2018-08-16 | A kind of microminiature turbine engine integration axle sleeve oil supply system |
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| Publication Number | Publication Date |
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| CN208734439U true CN208734439U (en) | 2019-04-12 |
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| CN201821321084.9U Active CN208734439U (en) | 2018-08-16 | 2018-08-16 | A kind of microminiature turbine engine integration axle sleeve oil supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644019A (en) * | 2018-08-16 | 2018-10-12 | 西北工业大学 | A kind of microminiature turbine engine integration axle sleeve oil supply system |
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- 2018-08-16 CN CN201821321084.9U patent/CN208734439U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644019A (en) * | 2018-08-16 | 2018-10-12 | 西北工业大学 | A kind of microminiature turbine engine integration axle sleeve oil supply system |
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