CN108691806B - Using the engine structure changes fan of guide rail wheel disc and set tooth round tube - Google Patents
Using the engine structure changes fan of guide rail wheel disc and set tooth round tube Download PDFInfo
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- CN108691806B CN108691806B CN201810438026.2A CN201810438026A CN108691806B CN 108691806 B CN108691806 B CN 108691806B CN 201810438026 A CN201810438026 A CN 201810438026A CN 108691806 B CN108691806 B CN 108691806B
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- blade
- round tube
- tooth
- fan
- guide rail
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Present disclose provides a kind of engine structure changes fans using guide rail wheel disc and set tooth round tube, comprising: fan blade, including blade, blade root shaft and housing tooth positioned at blade root shaft end surface；Guide rail wheel disc, the guide portion of the disk edge inner surface including guide rail wheel disc is arranged in；Dove-tail form slides tenon, it is configured to slide along guide portion, by being changed the spacing of guide rail wheel disc, dove-tail form sliding tenon is slided along guide portion, change the radial position of dove-tail form sliding tenon, so that dove-tail form sliding tenon drives blade root shaft to change the radial position of fan blade；And set tooth round tube, the inner sleeve tooth including being located at set tooth round tube inner surface, inner sleeve tooth carry out set tooth with housing tooth and connect, and by rotating set tooth round tube, the adjusting of the established angle of fan blade is realized by the connection of set tooth.
Description
Technical field
This disclosure relates to a kind of engine structure changes fan using guide rail wheel disc and set tooth round tube.
Background technique
With the extension of aircraft flight envelope curve and the raising of task complexity, aero-engine needs are adjusted according to task
Itself each component working condition is saved, to guarantee the stability and working efficiency of different operating condition lower components, realizes that engine is comprehensive
The promotion of energy.Critical component of the blade as control gas flowing, engineering staff propose a variety of regulation schemes of blade.
Patent CN104819164A is a kind of relatively conventional adjustable stator blade linkage adjusting apparatus scheme, by shaking
The combination of arm, link ring and Tiebar structure, carries out linkage adjusting to the established angle of stator blade.But the class formation is only applicable in
In stator blade, and the variation of blade angle can only be adjusted.
Patent CN206503781U is a kind of improved adjustable guide vane structure for aero-engine, by shaking
Arm, linkage ring and gear regulating mechanism the established angle of stator blade is adjusted, meanwhile, be also provided with axial actuation mechanism and
Sliding rail, with adjust stator blade along engine axial position, increase the margin of operation of compressor.But the structure is still only
Suitable for the adjusting of stator blade, and the radial position of blade can not be adjusted.
Patent CN205937166U proposes a kind of engine blower blade construction of adjustable angle, is held by hydraulic stem
By blade centrifugal force, fan shaft realization is adjusted to the angular adjustment of fan blade by motor.But the structure is not
It is adjustable the radial position of fan blade.
It can be seen that above scheme is only the regulation scheme for stator blade, and more focus on stator blade
Established angle is adjusted, adjusting while cannot achieve fan rotor blade established angle and radial position, it is difficult to be met current advanced
Aero-engine unit status adjust demand.
Summary of the invention
In order to solve at least one above-mentioned technical problem, present disclose provides a kind of using guide rail wheel disc and covers tooth round tube
Engine structure changes fan.
According to one aspect of the disclosure, include: using the engine structure changes fan of guide rail wheel disc and set tooth round tube
Fan blade, including blade, blade root shaft and housing tooth positioned at blade root shaft end surface；
Guide rail wheel disc, the guide portion of the disk edge inner surface including guide rail wheel disc is arranged in；
Dove-tail form slides tenon, is configured to slide along guide portion, by being changed the spacing of guide rail wheel disc, dovetail
Type sliding tenon is slided along guide portion, changes the radial position of dove-tail form sliding tenon, so that dove-tail form slides tenon band
Movable vane root shaft changes the radial position of fan blade；And
Tooth round tube is covered, the inner sleeve tooth including being located at set tooth round tube inner surface, inner sleeve tooth carries out set tooth with housing tooth and connect, and leads to
Crossing, which makes to cover tooth round tube, is rotated, and the adjusting of the established angle of fan blade is realized by the connection of set tooth.
According at least one embodiment of the disclosure, dove-tail form sliding tenon includes:
Tenon is slidably connected with guide portion；And
Bearing, blade root shaft are installed to bearing, so as to realize fan blade established angle adjusting.
According at least one embodiment of the disclosure, fan blade further include:
The middle part of blade root shaft is arranged in cylinder boss, with bearing touch, transmits blade centrifugal force to tenon by bearing
Head.
According at least one embodiment of the disclosure, the quantity of guide rail wheel disc is two, by with two guide rail wheel discs
The first axle being respectively connected with changes the spacing of guide rail wheel disc；And
Make to cover the rotation of tooth round tube by the second axis being connected with set tooth round tube.
According at least one embodiment of the disclosure, the length of inner sleeve tooth is greater than the length of housing tooth, it is ensured that inner sleeve tooth
It remains to be kept in contact during sliding opposite with housing tooth.
It further include rocker arm and blade linkage disk according at least one embodiment of the disclosure, set tooth round tube passes through rocker arm
It is connect with blade linkage disk, blade linkage disk and the second axis connection；
Second axis rotation band movable vane piece linkage disc spins, blade linkage disk pass through rocker arm and drive set tooth round tube rotation.
It further include position-limitting pin and stop screw according at least one embodiment of the disclosure, position-limitting pin is used for leaf
The connection of piece linkage disk and rocker arm, blade linkage disk pass through position-limitting pin and drive rocker arm rotation；
Connection of the stop screw for rocker arm and set tooth round tube, rocker arm drive set tooth round tube to rotate by stop screw.
According at least one embodiment of the disclosure, whole fan blade pass through rocker arm and connect with blade linkage disk,
When blade links disc spins, while the established angle of whole fan blade is adjusted.
According at least one embodiment of the disclosure, when engine is adjusted to maximum bypass ratio state, first is adjusted
Axis increases the spacing of guide rail wheel disc, promotes the radial position of dove-tail form sliding tenon, to adjust the radial position of fan blade
It sets to maximum；Second axis band movable vane piece linkage disc spins, blade linkage disk drive set tooth round tube to revolve along own axes by rocker arm
Turn, and is matched by the established angle that set tooth connection adjusts fan blade with current gas flow velocity and engine rotor revolving speed；
When engine is adjusted to minimum bypass ratio state, first axle is adjusted, the spacing of guide rail wheel disc is reduced, makes dove-tail form
The radial position for sliding tenon reduces, to adjust the radial position of fan blade to minimum；Second axis band movable vane piece linkage disk
Rotation, blade linkage disk drive set tooth round tube to rotate along own axes, and adjust fan blade by covering tooth connection by rocker arm
Established angle match with current gas flow velocity and engine rotor revolving speed；And
When engine is adjusted to intermediate bypass ratio state, first axle is adjusted, keeps the spacing of guide rail wheel disc moderate, passes through swallow
Tail type slides tenon to adjust the radial position of fan blade to the position between maximum radial position and smallest radial position；The
Two axis band movable vane piece linkage disc spins, blade linkage disk drives set tooth round tube to rotate along own axes by rocker arm, and passes through set
The established angle that tooth connection adjusts fan blade matches with current gas flow velocity and engine rotor revolving speed.
According to the another aspect of the disclosure, a kind of engine, comprising:
Engine structure changes fan as described above using guide rail wheel disc and set tooth round tube；
Gas generator；And
Mixer；
When the engine is working, the air-flow of air intake duct is divided into intension air-flow and outer culvert air-flow,
Intension air-flow becomes intension exit flow after gas generator,
Outer culvert air-flow becomes outer culvert exit flow after by-pass air duct,
Outer culvert exit flow is mixed with intension exit flow by mixer, forms jet pipe air-flow.
Detailed description of the invention
Attached drawing shows the illustrative embodiments of the disclosure, and it is bright together for explaining the principles of this disclosure,
Which includes these attached drawings to provide further understanding of the disclosure, and attached drawing is included in the description and constitutes this
Part of specification.
Fig. 1 is the structure changes fan structure diagram according at least one embodiment of the disclosure.
Fig. 2 is that the structure changes fan structure under the maximum bypass ratio state according at least one embodiment of the disclosure shows
It is intended to.
Fig. 3 is that the structure changes fan structure under the minimum bypass ratio state according at least one embodiment of the disclosure shows
It is intended to.
Fig. 4 is that the structure changes fan structure under the medium bypass ratio state according at least one embodiment of the disclosure shows
It is intended to.
Fig. 5 is the structural representation according to the installation of the structure changes fan of at least one embodiment of the disclosure on the engine
Figure.
Specific embodiment
The disclosure is described in further detail with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is only used for explaining related content, rather than the restriction to the disclosure.It also should be noted that being
Convenient for description, part relevant to the disclosure is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure can
To be combined with each other.The disclosure is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
The engine structure changes fan of the disclosure realizes the adjusting of rotor blade radial position using guide rail wheel disc, simultaneously
The adjusting of rotor blade established angle is realized using set tooth round tube.The disclosure is to realize the radial position and peace of engine blower blade
The adjusting at dress angle proposes a kind of New Type of Fan modular construction scheme, to guarantee efficient work of the fan in whole envelope condition range
Make.
In an optional embodiment of the disclosure, as shown in Figure 1, engine structure changes fan includes: fan blade
(rotor blade), guide rail wheel disc 2, dove-tail form sliding tenon and set tooth round tube.
Wherein, fan blade includes blade 1, blade root shaft 7, and configuration turns the tip of the axis in blade root, i.e., close to start
The housing tooth 10 on arbor line end surface.
The disk edge internal surface configurations of guide rail wheel disc 2 have the guide portion to match with dove-tail form sliding tenon, such as guide-track groove
6。
Dove-tail form sliding tenon can be slided along guide-track groove 6.Guide-track groove 6 bear dove-tail form sliding tenon transmitting blade from
While mental and physical efforts, tenon is slided for dove-tail form, sliding rail is provided.By changing the spacing of guide rail wheel disc 2, dove-tail form slides tenon
Head can be slided along guide-track groove 6, to change the radial position of dove-tail form sliding tenon.Further, dove-tail form is sliding
Dynamic tenon drives blade root shaft 7 to change the radial position of fan blade.
Set tooth round tube includes the inner sleeve tooth 11 positioned at set tooth round tube inner surface.The housing tooth 10 of fan blade can be with set tooth
The inner sleeve tooth 11 of round tube matches to form set tooth connection.When covering the rotation of tooth round tube, fan can be realized by the connection of set tooth
The adjusting of the established angle of blade.
In an optional embodiment of the disclosure, as shown in Figure 1, dove-tail form sliding tenon includes tenon 5 and bearing
8.Tenon 5 can be slided along guide-track groove 6.Blade root shaft 7 is mounted on bearing 8, and bearing 8 can fix blade root shaft 7, also
It is fan attachment blade, and does not influence fan blade along own axis, to make fan blade adjust itself established angle
While do not influence the radial position of blade and the transmitting of blade centrifugal force.
The cylinder boss 9 at 7 middle part of blade root shaft is contacted with bearing 8.The cylinder that blade centrifugal force passes through 7 middle part of blade root shaft
Boss 9 is transferred to bearing 8, and the contact surface of tenon 5 and tenon 5 and guide-track groove 6 is transferred to by bearing 8.Final blade from
Mental and physical efforts are born by guide rail wheel disc 2.
Guide rail wheel disc 2 is divided to for two opposite wheel discs, two wheel discs core position by pin 3 respectively with two pieces the
The connection of one axis 4.
When adjusting the radial position of fan blade, the first axle 4 being respectively connected with two guide rail wheel discs 2 is along engine axis
Change relative spacing, two guide rail wheel discs 2 can be driven to change relative spacing.Guide rail wheel disc 2 and dove-tail form sliding tenon can be with
Leaf dish cooperation is carried out, dove-tail form is adjusted by the guide-track groove 6 of wheel disc disk edge and slides the radial position of tenon, and further passes through axis
It holds 8 drive fan blade and does radial motion.
When adjusting fan blade established angle, the second axis 19 being connected with set tooth round tube rotates, and set tooth round tube can be driven to turn
It is dynamic.Set tooth round tube further drives the rotation of fan blade by the connection of set tooth, to adjust the established angle of fan blade.
In an optional embodiment of the disclosure, as shown in Figure 1, when adjusting the radial position of fan blade, set
The radial position of tooth round tube regulating mechanism is constant.Wherein, the length for covering tooth round tube inner sleeve tooth 11 is greater than blade root shaft housing tooth 10
Length, with guarantee fan blade in radial position adjustable range, i.e., blade root shaft housing tooth 10 and set tooth round tube inner sleeve tooth
11 are still kept in contact both during diametrically sliding.Inner sleeve tooth 11 is connected with the set tooth that housing tooth 10 is formed so that wind
Fan leaf will not have an impact the adjusting of blade itself established angle in the variation of radial position.
The structure changes fan of present embodiment further includes stop nut 14, rocker arm 15, position-limitting pin 16 and blade linkage disk
17.Set tooth round tube, stop nut 14, rocker arm 15, position-limitting pin 16 and blade linkage disk 17 collectively constitute set tooth round tube and adjust machine
Structure.Wherein, set tooth round tube further includes the stop screw 13 on tube wall 12 and tube wall other than including inner sleeve tooth 11.Cover tooth circle
Pipe is connect by stop screw 13 with rocker arm 15, and rocker arm 15 is connect by position-limitting pin 16 with blade linkage disk 17.And blade joins
Moving plate 17 is connected by pin 18 with the second axis 19 at core position.
When adjusting the established angle of fan blade, the second axis 19 being connected with blade linkage disk 17 rotates, can be with movable vane piece
The disk 17 that links rotates, and drives rocker arm 15 to rotate by position-limitting pin 16.Rocker arm 15 can be by set tooth tube wall 12
Stop screw 13 drives set tooth round tube to rotate along own axes.Set tooth round tube makes the leaf being mounted on bearing 8 by set tooth connection
Root shaft 7 is rotated along own axes, to realize the adjusting of the established angle of fan blade.
It can be said that the bearing 8 in dove-tail form sliding tenon, and between set tooth tube wall 12 and blade root shaft 7
The connection of set tooth, the two structures, realize rotor blade radial motion and itself established angle rotates this two regulatory functions
Independence.
It is noted that stop screw 13 and stop nut 14 on position-limitting pin 16, and set tooth tube wall 12
Its position is only limited in a certain range in 15 motion process of rocker arm, can be realized and be adjusted according to the motion profile of setting
Function is not intended to limit whole relative motions of rocker arm 15 and other structures generation.
In an optional embodiment of the disclosure, each rotor blade in engine structure changes fan respectively passes through one
A set tooth round tube is connected with a rocker arm.Whole rocker arms are arranged on blade linkage disk 17.When blade linkage disk 17 rotates,
The established angle of whole rotor blades is adjusted simultaneously by rocker arm.
In an optional embodiment of the disclosure, as shown in Fig. 2, when engine is adjusted to maximum bypass ratio state
When, increase first axle 4 along the relative spacing of engine axis, the spacing and wheel disc disk edge of two guide rail wheel discs 2 can be made
The spacing of guide-track groove 6 increases.The radial position of tenon is corresponding is promoted to the sliding of dove-tail form that guide-track groove 6 matches.Dove-tail form is sliding
Dynamic tenon can drive the fan blade being mounted on bearing 8 to be promoted to maximum radial position.It is connected with blade linkage disk 17
The rotation of second axis 19, the disk 17 that can link with movable vane piece rotate, and further drive rocker arm 15 to rotate by position-limitting pin 16.Rocker arm
15 stop screw 13 by being arranged on set tooth tube wall 12 drives set tooth round tube to rotate along own axes.Further,
Set tooth round tube drives the blade root shaft 7 being mounted on bearing 8 along own axis by set tooth connection, to adjust fan leaf
The setting angle of piece makes blade angle match with current gas flow velocity and engine rotor revolving speed.
As shown in figure 3, when engine is adjusted to minimum bypass ratio state, be respectively connected with two guide rail wheel discs 2
One axis 4 reduces relative spacing along engine axis, and then reduces the spacing of two guide rail wheel discs 2 and the spacing of guide-track groove 6.With
The dove-tail form sliding tenon that guide-track groove 6 matches glides, radial position decline, to drive the fan leaf being mounted on bearing 8
Piece drops to smallest radial position.The second axis 19 being connected with blade linkage disk 17 rotates, and the disk 17 that can link with movable vane piece revolves
Turn, and further drives rocker arm 15 to rotate by position-limitting pin 16.Rocker arm 15 can drive set tooth round tube by stop screw 13
It is rotated along own axes.Further, it covers tooth round tube and drives the blade root shaft 7 being mounted on bearing 8 along certainly by set tooth connection
Body axis rotation, to adjust blade angle degree, makes blade angle and current gas flow velocity and engine rotor revolving speed phase
Matching.
As shown in figure 4, first axle 4 adjusts opposite along engine axis when engine is adjusted to intermediate bypass ratio state
Spacing, and keep the spacing between the spacing of two guide rail wheel discs 2 and the guide-track groove 6 of wheel disc disk edge moderate.Dove-tail form slides tenon
The radial position of head accordingly changes, and drives fan blade to be between maximum radial position and smallest radial position by bearing
Intermediate radial position.The rotation of second axis 19, the disk 17 that can link with movable vane piece rotate.Blade linkage disk 17 passes through position-limitting pin
16 drive rocker arm 15 to rotate.Rocker arm 15 can drive set tooth round tube to rotate along own axes by stop screw 13.Cover tooth round tube
Make the fan blade being mounted on bearing 8 along own axis by set tooth connection, to change the setting angle of blade, makes
Blade angle matches with current gas flow velocity and engine rotor revolving speed.
In an optional embodiment of the disclosure, a kind of engine includes using guide rail wheel disc and set as described above
The engine structure changes fan of tooth round tube, gas generator and mixer.As shown in figure 5, being adjusted when engine is started to work
The bypass ratio of engine, and accordingly adjust the radial position of the rotor blade of structure changes fan.Turned according to gas flow rate and rotor
The setting angle of velocity modulation section rotor blade.Inlet flow 20 is divided into intension air-flow 21 after the acting of structure changes fan compression
With outer 22 two parts of culvert air-flow.Then, intension air-flow 21 is becoming intension exit flow 23, outer culvert gas after gas generator
Stream 22 becomes outer culvert exit flow 24 after by-pass air duct.Outer culvert exit flow 24 after mixer with intension exit flow
23 mixing ultimately form jet pipe air-flow 25 and are discharged outside engine.
In the disclosure, structure changes fan, can be simultaneously to the radial direction of rotor blade compared with existing propeller regulating mechanism
Position and established angle are adjusted.The disclosure can match the radial position for adjusting rotor blade according to engine bypass ratio state
It sets, changes effective work area of the rotor blade in engine runner.The disclosure can be according to runner gas flow rate and starting
The variation of machine rotor revolving speed adjusts the established angle of rotor blade, to realize efficient operation of the fan in whole envelope condition range.
It will be understood by those of skill in the art that above embodiment is used for the purpose of clearly demonstrating the disclosure, and simultaneously
Non- be defined to the scope of the present disclosure.For those skilled in the art, may be used also on the basis of disclosed above
To make other variations or modification, and these variations or modification are still in the scope of the present disclosure.
Claims (10)
1. a kind of engine structure changes fan using guide rail wheel disc and set tooth round tube characterized by comprising
Fan blade, including blade, blade root shaft and housing tooth positioned at blade root shaft end surface；
Guide rail wheel disc, the guide portion of the disk edge inner surface including the guide rail wheel disc is arranged in；
Dove-tail form slides tenon, is configured to slide along the guide portion, by being changed the spacing of the guide rail wheel disc,
Dove-tail form sliding tenon is slided along the guide portion, changes the radial position of the dove-tail form sliding tenon, thus dovetail
Type sliding tenon drives the blade root shaft to change the radial position of the fan blade；And
Tooth round tube is covered, the inner sleeve tooth including being located at the set tooth round tube inner surface, the inner sleeve tooth is covered with the housing tooth
Tooth connection connects the established angle to realize the fan blade by the set tooth by rotating the set tooth round tube
Adjusting.
2. fan according to claim 1, which is characterized in that dove-tail form slides tenon and includes:
Tenon is slidably connected with the guide portion；And
Bearing, the blade root shaft are installed to the bearing, so as to realize the fan blade established angle adjusting.
3. fan according to claim 2, which is characterized in that the fan blade further include:
The middle part of the blade root shaft is arranged in cylinder boss, with the bearing touch, transmits blade centrifugation by the bearing
Power is to the tenon.
4. fan according to claim 3, which is characterized in that
The quantity of the guide rail wheel disc is two, changes the guide rail by the first axle being respectively connected with two guide rail wheel discs
The spacing of wheel disc；And
Rotate the set tooth round tube by the second axis being connected with the set tooth round tube.
5. fan according to claim 4, which is characterized in that the length of the inner sleeve tooth is greater than the length of the housing tooth
Degree, it is ensured that remain to be kept in contact during inner sleeve tooth sliding opposite with the housing tooth.
6. fan according to claim 4, which is characterized in that further include rocker arm and blade linkage disk,
The set tooth round tube is connect by the rocker arm with blade linkage disk, and the blade linkage disk and second axis connect
It connects；
The second axis rotation drives the blade linkage disc spins, and the blade linkage disk drives the set by the rocker arm
The rotation of tooth round tube.
7. fan according to claim 6, which is characterized in that it further include position-limitting pin and stop screw,
Connection of the position-limitting pin for blade linkage disk and the rocker arm, the blade linkage disk pass through the limit
Pin drives the rocker arm rotation；
The stop screw is used for the connection of the rocker arm and the set tooth round tube, and the rocker arm is driven by the stop screw
The set tooth round tube rotation.
8. fan according to claim 7, which is characterized in that whole fan blade pass through the rocker arm and the blade
Link disk connection, when the blade links disc spins, while the established angle of whole fan blade being adjusted.
9. fan according to claim 7 or 8, which is characterized in that when engine is adjusted to maximum bypass ratio state, adjust
The first axle is saved, the spacing of the guide rail wheel disc is increased, promotes the radial position of the dove-tail form sliding tenon, to adjust
The radial position of the fan blade is saved to maximum；Second axis drives the blade linkage disc spins, the blade linkage
Disk drives the set tooth round tube to rotate along own axes by the rocker arm, and adjusts the fan leaf by set tooth connection
The established angle of piece matches with current gas flow velocity and engine rotor revolving speed；
When engine is adjusted to minimum bypass ratio state, the first axle is adjusted, the spacing of the guide rail wheel disc is reduced, makes institute
The radial position for stating dove-tail form sliding tenon reduces, to adjust the radial position of the fan blade to minimum；Described second
Axis drives the blade linkage disc spins, and the blade linkage disk drives the set tooth round tube along own axes by the rocker arm
Rotation, and pass through the established angle and current gas flow velocity and engine rotor revolving speed of the set tooth connection adjusting fan blade
Match；And
When engine is adjusted to intermediate bypass ratio state, the first axle is adjusted, keeps the spacing of the guide rail wheel disc moderate, is led to
The dove-tail form sliding tenon is crossed to adjust the radial position of the fan blade to the maximum radial position and the minimum
Position between radial position；Second axis drives the blade linkage disc spins, and the blade linkage disk is shaken by described
Armband is moved the set tooth round tube and is rotated along own axes, and by set tooth connection adjust the fan blade established angle and
Current gas flow velocity and engine rotor revolving speed match.
10. a kind of engine, comprising:
Gas generator；And
Mixer；
In the engine operation, the air-flow of air intake duct is divided into intension air-flow and outer culvert air-flow,
The intension air-flow becomes intension exit flow after the gas generator,
The outer culvert air-flow becomes outer culvert exit flow after by-pass air duct,
The outer culvert exit flow is mixed with the intension exit flow by mixer, forms jet pipe air-flow；
It is characterized in that, further including using guide rail wheel disc as claimed in any one of claims 1-9 wherein and covering starting for tooth round tube
Machine structure changes fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438026.2A CN108691806B (en) | 2018-05-09 | 2018-05-09 | Using the engine structure changes fan of guide rail wheel disc and set tooth round tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438026.2A CN108691806B (en) | 2018-05-09 | 2018-05-09 | Using the engine structure changes fan of guide rail wheel disc and set tooth round tube |
Publications (2)
| Publication Number | Publication Date |
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| CN108691806A CN108691806A (en) | 2018-10-23 |
| CN108691806B true CN108691806B (en) | 2019-10-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131207A (en) * | 2019-05-23 | 2019-08-16 | 中国航空发动机研究院 | Using the engine blower and its diameter adjustment method of the variable-diameter of hydraulic-driven |
| CN110131208B (en) * | 2019-05-23 | 2021-05-04 | 中国航空发动机研究院 | Hydraulic drive based variable diameter and setting angle fan rotor |
| CN111622982B (en) * | 2020-06-01 | 2021-06-11 | 浙江启达汽车部件有限公司 | Energy-saving water pump for automobile engine |
| CN113062777B (en) * | 2021-06-03 | 2021-10-01 | 中国航发上海商用航空发动机制造有限责任公司 | Performance debugging method of booster stage and turbofan engine |
| CN117818930B (en) * | 2024-03-04 | 2024-05-10 | 中国人民解放军军事科学院国防科技创新研究院 | Propeller with adjustable heterogeneous composite material structure and unmanned aerial vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2182727B (en) * | 1985-11-12 | 1989-09-27 | Gen Electric | Propeller/fan pitch feathering apparatus |
| FR3036093B1 (en) * | 2015-05-12 | 2017-06-02 | Snecma | LEVER ARRANGEMENT FOR CONTROLLING THE ORIENTATION OF BLOWER BLADES OF A NON-CARBONATED BLOWER TURBOMACHINE |
| CN205025693U (en) * | 2015-08-25 | 2016-02-10 | 三一重型能源装备有限公司 | Wind generating set and wind wheel thereof |
| CN108005812B (en) * | 2017-12-04 | 2019-06-18 | 中国航空发动机研究院 | Using the intelligent engine of adaptive casing and adaptive fan |
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