CN107035844A - A kind of fluid torque-converter segmented turbo blade - Google Patents
A kind of fluid torque-converter segmented turbo blade Download PDFInfo
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- CN107035844A CN107035844A CN201710375798.1A CN201710375798A CN107035844A CN 107035844 A CN107035844 A CN 107035844A CN 201710375798 A CN201710375798 A CN 201710375798A CN 107035844 A CN107035844 A CN 107035844A
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- 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
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
- F16H41/26—Shape of runner blades or channels with respect to function
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/18—Manufacturability analysis or optimisation for manufacturability
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Abstract
The present invention relates to a kind of fluid torque-converter section turbo blade, the turbo blade is in the location segment that pressure face pressure value is 0, and its blade close to turbine inlet part is primary blades, is caudal lobe piece close to the blade of turbine outlet；Primary blades are changeover portion at the position for being 0 close to pressure face pressure value, and the changeover portion translates 2/5~3/5 vane thickness towards suction surface by former pressure and formed, and are circular sliding slopes at 0 position in pressure face pressure value.The present invention has carried out section processing in turbo blade pressure face high pressure edges of regions to turbo blade, by transformer turbine blade design into two sections, and primary blades translate 2/5~3/5 vane thickness towards suction surface by former pressure to the region of transition at segmentation and formed, it is circular sliding slopes at 0 position in pressure face pressure value, lifting turbine pressure surface pressure can be reached, increase runner torque, lift converter torque ratio, then increase the purpose of torque converter.
Description
Technical field
The invention belongs to hydraulic power technical field, and in particular to a kind of fluid torque-converter section turbo blade.
Background technology
Fluid torque-converter is to transmit the turbomachine of power by fluid dynamic energy, with load is adaptive, variable speed,
The advantages of vibration damping and vibration isolation and stable low-speed performance, be widely used in military project, petroleum machinery automobile, engineering machinery, farm machinery,
The industries such as building machinery.Fluid torque-converter is as a kind of transmission device, and its transmission efficiency is than machine driven systems such as gear drives
Efficiency it is low, this not only limit the application of fluid torque-converter, also create the waste of resource and the energy and more
Discharge causes environmental degradation.
Existing transformer turbine blade has the following disadvantages：
1st, the lifting surface area in turbine pressure face is small, and the thrust suffered by turbine is small.
2nd, turbo blade pressure face porch has obvious whirlpool to be formed, and the mobility status at turbine inlet is poor, transmission
Efficiency is low.
3rd, blade maximum curvature section fluid flow losses are huge.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of fluid torque-converter section turbo blade, the turbo blade energy
Turbine pressure surface pressure is enough lifted, so as to increase runner torque lifting converter torque ratio, torque converter is improved, has reached that energy-conservation increases
The purpose of effect.
In order to solve the above-mentioned technical problem, fluid torque-converter section turbo blade of the invention, it is characterised in that described
Turbo blade is in the location segment that pressure face pressure value is 0, and its blade close to turbine inlet part is primary blades, close to turbine
The blade of outlet is caudal lobe piece；Primary blades are changeover portion at the position for being 0 close to pressure face pressure value, and the changeover portion is pressed by original
Power translates 2/5~3/5 vane thickness towards suction surface and formed, and is circular sliding slopes at 0 position in pressure face pressure value.
Situation is streamed according to torque converter turbine inner vanes, the present invention is in turbo blade pressure face high pressure edges of regions pair
Turbo blade has carried out section processing, by transformer turbine blade design into two sections, and primary blades are at segmentation
The region (i.e. changeover portion) crossed translates 2/5~3/5 vane thickness towards suction surface by former pressure and formed, and is in pressure face pressure value
Circular sliding slopes at 0 position, can reach lifting turbine pressure surface pressure, increase runner torque, lift converter torque ratio, then increase
The purpose of torque converter.
In definition space coordinate system, fluid torque-converter rotary shaft is z-axis, and it is z-axis positive direction that turbine, which points to pump impeller direction,
Xoy faces are pump impeller and turbine interface, and the expression formula of the outer shroud bone lines of the primary blades in space coordinates is
Expression formula of the inner ring bone line of primary blades in space coordinates be
Described primary blades and caudal lobe piece are to top formula arrangement.
Expression formula of the outer shroud bone line of the caudal lobe piece in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece in space coordinates be
Described primary blades and caudal lobe piece arrange for alternating expression.
Expression formula of the outer shroud bone line of the caudal lobe piece in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece in space coordinates be
Described primary blades and caudal lobe piece arrange for lapping formula.
Expression formula of the outer shroud bone line of the caudal lobe piece in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece in space coordinates be
Compared with original conventional fluid torque-converter, the beneficial effects of the invention are as follows：
1. the transformer turbine blade designed by the present invention increases the lifting surface area of transformer turbine pressure face
Plus, making torque-converters, turbine pressure surface pressure increases in the course of the work, the thrust suffered by turbine is favorably improved, so as to carry
High runner torque, improves the converter torque ratio of torque-converters.
2. the transformer turbine blade designed by the present invention improves the flowing shape of transformer turbine porch
Condition.The mobility status of original conventional fluid torque-converter porch is poor, has obvious backflow in turbo blade pressure face porch
Whirlpool, is disappeared using the whirlpool that flowed back after the fluid torque-converter of double sections of turbo blades.The processing of turbo blade section improves turbine
Fluid inflow velocity at the flow regime of porch, increase turbine inlet, accelerates the process that fluid enters turbine, reduces
Fluid enters the flow losses of turbine stage after being come out from pump impeller, to transmit bigger moment of torsion and power, and then improve transmission
Efficiency.
3. the transformer turbine blade designed by the present invention can eliminate original conventional fluid torque-converter near wall
The superelevation vorticity at place, further reduces the flow losses that the microvortex dissipation near wall boundary layer is produced.
4. the transformer turbine blade designed by the present invention makes the high vorticity area that fluid torque-converter is obtained in main flow area
Domain is bigger than original conventional fluid torque-converter, and its turbulence intensity is bigger, thus produce the impact to grater blade improve blade by
Power.
5. the transformer turbine blade designed by the present invention makes the flow losses in transformer turbine smaller, and
Primary blades depression section, has very powerful miniature scale eddying motion, promotes the boost in pressure of wall, enter after section processing
And runner torque is improved, improve the converter torque ratio of torque-converters.
6. the transformer turbine blade designed by the present invention makes the performance of fluid torque-converter have considerable raising.Including
Maximal efficiency, stall torque have been lifted than, nominal torque of stall condition etc..
Brief description of the drawings
Fig. 1 is turbo blade section processing position selection schematic diagram of the present invention；
Fig. 2 is the double section blade graphics of torque converter turbine of the present invention；
Fig. 3 a are original conventional torque converter turbo blade graphics；
Fig. 3 b-1 are the double section blade graphics of torque converter turbine described in the embodiment of the present invention 1；Fig. 3 b-2 are Fig. 3 b-1 I
Portion's partial enlarged drawing.
Fig. 3 c-1 are the double section blade graphics of torque converter turbine described in the embodiment of the present invention 2；Fig. 3 c-2 are Fig. 3 c-1 I
Portion's partial enlarged drawing.
Fig. 3 d-1 are the double section blade graphics of torque converter turbine described in the embodiment of the present invention 3；Fig. 3 d-2 are Fig. 3 d-1 I
Portion's partial enlarged drawing.
Fig. 4 a are the leaf figures of original conventional torque converter turbo blade；
Fig. 4 b are the bone line charts of original conventional torque converter turbo blade；
Fig. 4 c are the leaf figures of the torque converter turbine blade described in the embodiment of the present invention 1；
Fig. 4 d are the bone line charts of the torque converter turbine blade described in the embodiment of the present invention 1；
Fig. 4 e are the leaf figures of the torque converter turbine blade described in the embodiment of the present invention 2；
Fig. 4 f are the bone line charts of the torque converter turbine blade described in the embodiment of the present invention 2；
Fig. 4 g are the leaf figures of the torque converter turbine blade described in the embodiment of the present invention 3；
Fig. 4 h are the bone line charts of the torque converter turbine blade described in the embodiment of the present invention 3；
Fig. 5 is the technique effect comparison diagram of torque-converters described in the embodiment of the present invention 1 and conventional torque converter；Wherein (a) is whirlpool
Pressure velocity profile profiles versus figure in wheel；(b) it is Vorticity Distribution comparison diagram in turbine；(c) velocity field profiles versus in turbine
Figure；
Fig. 6 a are the torque-converters and same position stream in the Turbine flow of original conventional torque converter that institute's embodiment 1 of the present invention is stated
Turn enthalpy change trend correlation curve on line；
Fig. 6 b are the torque-converters described in the embodiment of the present invention 1 and same position stream in the Turbine flow of original conventional torque converter
Turbulent Kinetic variation tendency correlation curve on line；
Fig. 6 c are the torque-converters described in the embodiment of the present invention 1 and same position stream in the Turbine flow of original conventional torque converter
Dissipation turbulent kinetic energy variation tendency correlation curve on line；
Fig. 7 a are the converter torque ratio correlation curves of the torque-converters described in the embodiment of the present invention 1 and original conventional torque converter；
Fig. 7 b are the nominal torque correlation curves of the torque-converters described in the embodiment of the present invention 1 and original conventional torque converter；
Fig. 7 c are efficiency comparative's curves of the torque-converters described in the embodiment of the present invention 1 and original conventional torque converter.
Fig. 8 a are the converter torque ratio correlation curves of the torque-converters described in the embodiment of the present invention 2 and original conventional torque converter；
Fig. 8 b are the nominal torque correlation curves of the torque-converters described in the embodiment of the present invention 2 and original conventional torque converter；
Fig. 8 c are efficiency comparative's curves of the torque-converters described in the embodiment of the present invention 2 and original conventional torque converter；
Fig. 9 a are the converter torque ratio correlation curves of the torque-converters described in the embodiment of the present invention 3 and original conventional torque converter；
Fig. 9 b are the nominal torque correlation curves of the torque-converters described in the embodiment of the present invention 3 and original conventional torque converter；
Fig. 9 c are efficiency comparative's curves of the torque-converters described in the embodiment of the present invention 3 and original conventional torque converter.
In figure：
1. common blade, 2. primary blades, the caudal lobe piece of 3. embodiments 1, the caudal lobe piece of 4. embodiments 2,
5. the caudal lobe piece of embodiment 3,11. common blade outer shroud bone lines, 12. common blade inner ring bone lines, 21. main lobves
The outer shroud bone line of piece,
22. the inner ring bone line of primary blades, the outer shroud bone line of the caudal lobe piece of 31. embodiment 1, the caudal lobe piece of 32. embodiment 1 it is interior
Ring bone line, the outer shroud bone line of the caudal lobe piece of 41. embodiment 2,
42. the inner ring bone line of the caudal lobe piece of embodiment 2, the outer shroud bone line of the caudal lobe piece of 51. embodiment 3, the tail of 52. embodiment 3
The inner ring bone line of blade.
Embodiment
For technical scheme is expanded on further, with reference to Figure of description, embodiment of the invention is as follows：
The embodiment of the present invention is not limited to this application using three element fluid torque-converters as research object.First to original
Begin conventional fluid torque-converter progress CFD numerical simulations, then streams situation according to torque converter turbine inner vanes, is keeping former whirlpool
On the basis of the import and export of impeller blade are isogonal, turbo blade pressure face pressure value for 0 position (A places in such as Fig. 1
Show) section processing has been carried out to turbo blade.It is main lobe to define the blade after section is handled close to turbine inlet part
Piece, is caudal lobe piece close to the blade of turbine outlet.Wherein primary blades inducer is identical with original blade, close to pressure surface pressure
The position that value is 0 is changeover portion, and the changeover portion translates 2/5~3/5 vane thickness towards suction surface by former pressure and obtained, preferably former
Pressure translates 1/2 vane thickness towards suction surface and obtained, and uses smooth circular sliding slopes at A in Fig. 1；Caudal lobe piece is then by prophyll piece
Obtained according to caudal lobe form and distributing position adjustment.But the leaf morphology of main lobe of the present invention is not limited thereto.Utilize three-dimensional
Software NX has carried out three kinds of blade sectionization processing, respectively embodiment 1, embodiment 2 and embodiment 3 to turbo blade.In whirlpool
Impeller blade is in processing, and three kinds of segment processing schemes obtain identical primary blades, simply on tail leaf morphology and distribution
Difference.Embodiment 1 is that primary blades and caudal lobe piece are arranged top formula, and embodiment 2 is primary blades and the arrangement of caudal lobe piece alternating expression, is implemented
Example 3 is then both lapping formula arrangements.But the invention is not limited in this three kinds of primary blades and the arrangement mode of caudal lobe piece.
Embodiment 1
The primary blades 2 and caudal lobe piece 3 of torque converter turbine blade designed by embodiment 1 are in top formula arrangement (such as Fig. 3 b-2
It is shown).According to embodiment turbo blade threedimensional model, be extracted center line of blade profile and leaf, the leaf and bone line of prophyll piece and
The blade that the processing of the section of the embodiment of the present invention 1 is obtained is leaf and bone line is as shown in Fig. 4 a~4d.Fig. 4 a~4d space coordinate
In system, fluid torque-converter rotary shaft is z-axis, and xoy faces are pump impeller and turbine interface, and it is that z-axis is square that turbine, which points to pump impeller direction,
To.The three-dimensional bone line coordinates of blade is extracted, carrying out data processing to the data point of center line of blade profile using MATLAB obtains center line of blade profile
Expression formula in space coordinates.Wherein original conventional transformer turbine blade outer shroud bone line 11 is in space coordinates
Expression formula be
Expression formula of the original conventional transformer turbine blade inner ring bone line 12 in space coordinates be
Turbo blade is after section processing in the embodiment of the present invention 1, and the outer shroud bone line 21 of its primary blades is in space coordinate
Expression formula in system is
Expression formula of the inner ring bone line 22 of primary blades in space coordinates be
Expression formula of the outer shroud bone line 31 of caudal lobe piece in space coordinates be
Expression formula of the inner ring bone line 32 of caudal lobe piece in space coordinates be
Fluid torque-converter model designed by the embodiment of the present invention 1 is carried out into three-dimensional CFD numbered analog simulations to calculate, and it is right
The flow field and external characteristics that CFD numbered analog simulations are obtained, which predict the outcome, to be analyzed, and draws to draw a conclusion：
Fluid torque-converter designed by the embodiment of the present invention 1 adds the lifting surface area in turbine pressure face, in torque-converters work
Turbine interior pressure increases during work.In Fig. 5 (a), the turbine leaf after section processing is clear that
The pressure that piece suction surface is subject to is apparently higher than traditional conventional fluid torque-converter, the concavity of primary blades especially after segment processing
Section, its pressure value is close to the maximum pressure in blade grid passage.And increased in primary blades leading edge stress, this also contributes to carry
Thrust suffered by high turbine, so as to improve runner torque, improves the converter torque ratio of torque-converters.
Fluid torque-converter designed by the embodiment of the present invention 1 improves the flow condition at turbine inlet.From Fig. 5 (b)
Middle streamline understand, original conventional fluid torque-converter has obvious whirlpool to be formed in turbo blade pressure face porch, this whirlpool from
Streamline, which can notify, makes the fluid at turbine inlet produce backflow, and flows back to no leaf grating area, until being pushed into leaf below by upstream fluid
Grid passage.And this backflow whirlpool after the processing of turbo blade section is vanished from sight, that is to say, that original conventional fluid power becomes
Mobility status of the square device at turbine inlet is poor, and the processing of turbo blade section improves the flowing shape at turbine inlet
State, is more beneficial for fluid and enters turbine, the flow losses for entering turbine stage after fluid comes out from pump impeller is reduced, to transmit
Bigger moment of torsion and power, and then improve transmission efficiency.It is visible in Fig. 5 (b), after blade sectionization processing, eliminate
Superelevation vorticity of the original conventional fluid torque-converter near wall, this also further reduces the microvortex near wall boundary layer
Dissipate the flow losses produced.In main flow area, the fluid torque-converter designed by the embodiment of the present invention 1 is than original conventional hydraulic moment changeable
The big vorticity region area that device is obtained is big, turbulent flow of the fluid torque-converter designed by this explanation embodiment of the present invention 1 in main flow area
Intensity is bigger, so that produce the impact to grater blade to improve vane stress, in addition from the aspect of flow velocity shown in (c) from Fig. 5,
Blade section processing increases the fluid inflow velocity at turbine inlet, illustrates that blade sectionization processing accelerates fluid and enters whirlpool
The process of wheel, improves the flow condition at turbine inlet.
Flow losses of the fluid torque-converter in turbine designed by the embodiment of the present invention 1 are smaller, and in section processing
Primary blades depression section, there is very powerful miniature scale eddying motion afterwards, promotes the boost in pressure of wall, and then improve turbine turn
Square, improves the converter torque ratio of torque-converters.Near turbo blade pressure face, the physical quantity on contrast same position streamline.Each physics
The variation tendency of amount is as shown in Fig. 6 a~6c, and dimensionless distance " 0 " represents turbine inlet, and " 1 " represents turbine outlet.In viscous flow
In dynamic, turn the difference of enthalpy on same streamline between 2 points, represent the flow losses in process fluid flow.Fig. 6 a are same streamline
On turn enthalpy change curve.As seen from the figure, original conventional fluid torque-converter turn enthalpy dimensionless distance " 0.2 " place drastically under
Drop, tends to be steady after reaching dimensionless distance " 0.5 " place.Illustrate original conventional fluid torque-converter in blade maximum curvature section fluid
Flow losses are huge, and the fluid torque-converter designed by the embodiment of the present invention 1 then turns enthalpy at dimensionless distance " 0.4 " place and just opened
Beginning is gradually reduced, and at entrance blade section processing obvious flow losses just occur for this explanation flow liquid.In addition, original normal
The enthalpy change that turns of rule fluid torque-converter turns enthalpy change apparently higher than what the fluid torque-converter designed by the embodiment of the present invention 1 was obtained
Value, that is to say, that the fluid torque-converter fluid flow loss designed by the embodiment of the present invention 1 is smaller.In addition, passing through Fig. 6 b and figure
6c is understood, significantly violent ripple is all there occurs in turbo blade section processing position Turbulent Kinetic and dissipation turbulent kinetic energy
It is dynamic, and the two change shape is substantially similar.Fluid torque-converter designed by the embodiment of the present invention 1 is in dimensionless distance " 0.4 "
Place the two drastically raise, reach it is gradually descending behind peak, dimensionless distance " 0.6 " place tend to normal level, this is that is
After the fluid torque-converter section processing designed by the embodiment of the present invention 1, in primary blades depression section, tubulence energy drastically increases
Plus, i.e., there is very powerful eddying motion in this stage, turbulence dissipation rate illustrates this powerful turbulent flow with same morphological fluctuation
Eddy size is small, and evolution is formed and disappearance is exceedingly fast, and when this powerful turbulent flow whirlpool is formed, can increase the pressure of wall
Power.
Original conventional fluid torque-converter is compared, the performance of the fluid torque-converter designed by the embodiment of the present invention 1 has considerable
Improve, maximal efficiency brings up to 87.16% from 86.2%, and stall torque ratio brings up to 2.63 by 2.454, while stall condition
Nominal torque also has 7.7% lifting.Specific external characteristics correlation curve is as shown in Fig. 7 a- Fig. 7 c.
Embodiment 2
The primary blades 2 and caudal lobe piece 4 of torque converter turbine blade designed by the embodiment of the present invention 2 are arranged (such as in alternating expression
Shown in Fig. 3 c-2).The turbo blade threedimensional model set up according to embodiment 2, is extracted center line of blade profile and leaf, and the present invention is implemented
The blade that the processing of the section of example 1 is obtained is leaf and bone line is as shown in Fig. 4 e and Fig. 4 f.The three-dimensional bone line coordinates of blade is extracted, is utilized
MATLAB carries out data processing to the data point of center line of blade profile and obtains expression formula of the center line of blade profile in space coordinates.Its main lobe
Expression formula of the bone line of piece in space coordinates is consistent with embodiment 1, and the outer shroud bone line 41 of caudal lobe piece is in space coordinates
Expression formula be
Expression formula of the inner ring bone line 42 of caudal lobe piece in space coordinates be
Fluid torque-converter designed by the embodiment of the present invention 2 improves the pressure in turbine pressure face, and then improves turbine
Torque, improves the converter torque ratio of torque-converters.Also turbine inlet flow regime can be improved, flow losses are reduced.Change can be improved
Square device performance, especially low-speed performance.Stall torque ratio brings up to 2.6 by 2.454, starts nominal torque and is improved by 180.02Nm
To 194.3Nm, low regime efficiency is also obviously improved in addition.Specific external characteristics correlation curve is as shown in Fig. 8 a~8c.
Embodiment 3
The primary blades 2 and caudal lobe piece 5 of torque converter turbine blade designed by the embodiment of the present invention 3 are arranged (such as in lapping formula
Shown in Fig. 3 d-2).The turbo blade threedimensional model set up according to embodiment 3, is extracted center line of blade profile and leaf, and the present invention is implemented
The blade that the processing of the section of example 3 is obtained is leaf and bone line is as shown in Fig. 4 g and Fig. 4 h.The three-dimensional bone line coordinates of blade is extracted, is utilized
MATLAB carries out data processing to the data point of center line of blade profile and obtains expression formula of the center line of blade profile in space coordinates.Its main lobe
Expression formula of the bone line of piece in space coordinates is consistent with embodiment 1, and the outer shroud bone line 51 of caudal lobe piece is in space coordinates
Expression formula be
Expression formula of the inner ring bone line 52 of caudal lobe piece in space coordinates be
Fluid torque-converter designed by the embodiment of the present invention 3 can equally lift the pressure in turbine pressure face, and then improve
Runner torque, improves the converter torque ratio of torque-converters.Turbine inlet flow regime is also improved simultaneously, reduces flowing and damages
Lose, improve torque-converters performance.Stall torque ratio brings up to 2.54 by 2.454, starts nominal torque and is brought up to by 180.02Nm
199.22Nm, in addition low regime efficiency be also obviously improved.Specific external characteristics correlation curve is as shown in Fig. 9 a~9c.
In summary three embodiment external characteristics results are understood, the present invention, which carries out section processing to turbo blade, to be had
Effect improves torque-converters performance.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Within the spirit and principles of the invention, to different type different shaped
Any modification, equivalent substitution and improvements that number torque-converters is made etc., should be included in the scope of the protection.
Claims (8)
1. a kind of fluid torque-converter section turbo blade, it is characterised in that：The turbo blade is 0 in pressure face pressure value
Location segment, its close to turbine inlet part blade be primary blades (2), close to turbine outlet blade be caudal lobe piece (3)；It is main
Blade (2) is changeover portion at the position for being 0 close to pressure face pressure value, and the changeover portion translates 2/ by former pressure towards suction surface
5~3/5 vane thicknesses are formed, and are circular sliding slopes at 0 position in pressure face pressure value.
2. fluid torque-converter section turbo blade according to claim 1, it is characterised in that：Definition space coordinate system
In, fluid torque-converter rotary shaft is z-axis, and it is z-axis positive direction that turbine, which points to pump impeller direction, and xoy faces are pump impeller and turbine interface,
Expression formula of the outer shroud bone line (21) of the primary blades (2) in space coordinates be
Expression formula of the inner ring bone line (22) of primary blades (2) in space coordinates be
3. fluid torque-converter section turbo blade according to claim 2, it is characterised in that：Described primary blades (2)
It is to top formula arrangement with caudal lobe piece (3).
4. fluid torque-converter section turbo blade according to claim 3, it is characterised in that：The caudal lobe piece (3)
Expression formula of the outer shroud bone line in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece (3) in space coordinates be
5. fluid torque-converter section turbo blade according to claim 2, it is characterised in that：Described primary blades (2)
Arranged with caudal lobe piece (3) for alternating expression.
6. fluid torque-converter section turbo blade according to claim 5, it is characterised in that：The caudal lobe piece (3)
Expression formula of the outer shroud bone line in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece (3) in space coordinates be
7. fluid torque-converter section turbo blade according to claim 2, it is characterised in that：Described primary blades (2)
Arranged with caudal lobe piece (3) for lapping formula.
8. fluid torque-converter section turbo blade according to claim 7, it is characterised in that：The caudal lobe piece (3)
Expression formula of the outer shroud bone line in space coordinates be
Expression formula of the inner ring bone line of caudal lobe piece (3) in space coordinates be
2
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| CN107035844B (en) | 2021-02-02 |
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