CN1062339C - Highly efficient rotary structure member - Google Patents
Highly efficient rotary structure member Download PDFInfo
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- CN1062339C CN1062339C CN94111597A CN94111597A CN1062339C CN 1062339 C CN1062339 C CN 1062339C CN 94111597 A CN94111597 A CN 94111597A CN 94111597 A CN94111597 A CN 94111597A CN 1062339 C CN1062339 C CN 1062339C
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Abstract
The present invention relates to a vane rotating with an axis, which is fixed to the axis. The vane solves the problem of efficiency improvement. The vane is characterized in that a cut-in edge rotating line has an equiangular radian to a natural equiangular rotating line that every 5 degrees the rotating line rotates inwards, a shrinkage rate of 23.5 degrees is generated, and every 5 degrees the rotating line rotates outwards, an expansion rate of 18.5 degrees is generated; an evacuation edge rotating line has an equiangular radian to the natural equiangular rotating line that every 5 degrees the rotating line rotates outwards, an expansion rate of 18.5 degrees is generated, and every 5 degrees the rotating line rotates inwards, a shrinkage rate of 23.5 degrees is generated. The vane can be widely used in fans, propellers, turbines, cutters, etc.
Description
The present invention relates to a kind of rotation blade, more particularly, relate to the rotation blade that the line Combination Design is come out that revolves, as electric fan, propeller blade and cutting blade etc. with natural isogonism radian.
Equipment and supplies in the current industry and commerce, all there are radian and the line segment quoted by all kinds of curves to produce various machinery, communication apparatus, building framework and family article or the like, use and reach higher and more accurate working efficiency and quality, noise-decreasing and loss etc.For example:
1, subunit Mead helical---be used for the synchronous chuck of screw, accurate mechanically-propelled device and lathe etc.;
2, circle is gradually opened up helical---be used for the rotor of isochronon pendulum, internal-combustion engine etc.;
3, parabola, hyperbola---be used for head, teledish, radio telescope, optically focused lampshade and the Laser Equipment etc. of aircraft;
4, logarithmic spiral---be used for cam, fast snow precipitation line layer eaves etc.
Therefore, different curves or revolve line different scientific values and industrial applicibility are arranged, go design and produce various high efficiency members based on the various line that revolves, and even whole machinery or machine are that people utilize natural phenomenon, and then the achievement that promotes the well-being of mankind with performing creative labour.
With the immediate background technique data of the present invention, the claimant only can provide and xerox " the marvellous curves of teenager's encyclopaedia book series " book 18-73 page or leaf that modest publishing house publishes in Taiwan in September, 1991.(for details, see the appendix), the claimant gains enlightenment from this book, but does not see the design application that " natural isogonism radian revolves line " arranged in the prior art.
Purpose of the present invention aims to provide a kind of rotation blade that the line Combination Design is come out that revolves with natural isogonism radian, and for example, electric fan, propeller blade and cutting blade etc. so that improve and improve the function and the efficient of existing product, reduce the wastage and noise.
The objective of the invention is to reach in the following manner: rotation blade, it is a kind of with the axle center, it is rotating center, be called for short and revolve the circumference that the heart is the center, and be fixedly arranged on laminar body on the running shaft, as electric fan, propeller blade, turbine bucket and rotary cutter sheet by this circumference equalization, these laminar body contain cuts inner rotary 5 degree, just have 18.5 degree spreading rates, every inwardly rotation 5 is spent, and has the line that revolves of 23.5 degree shrinkages.
Because above these number of degrees are with golden section nature ratio (GoLden Section ψ=1.618; ψ=0.618) cooperates physics (simple harmonic motion SimpLe Harmonic Motion); Principle is calculated.Obviously, utilize these angles and constant calculations and make " natural isogonism radian revolves line " and be applied to rotating member, for example, electric fan, propeller blade and cutting blade etc. can make it form product and reach high efficiency, pinpoint accuracy, low-loss, low noise and smooth naturally good effect such as suitable.
Below, will be in conjunction with the accompanying drawings and embodiment the present invention is done narration at length.
Fig. 1 revolves the line schematic representation for the present invention with the natural isogonism radian that natural ratio evolution reaches by rendering computer;
The track schematic representation that Fig. 2 revolves the line expansion or shrinks for the present invention's nature isogonism radian;
Fig. 3 is how much manufacturing system figure of the positive five limit five-pointed stars of the present invention;
Fig. 4 is inward turning isogonism computational geometry figure of the present invention;
Fig. 5 is outward turning isogonism computational geometry figure of the present invention;
Fig. 6 looks schematic representation for one of embodiment of the invention electric fan master;
Fig. 7 is the schematic side view of a blade among Fig. 6;
Fig. 8,9,10 is three kinds of different blade perk radian schematic representation of the present invention;
Figure 11,12 is the present invention's nature isogonism radian flabellum or paddle Combination Design understanding figure;
Figure 13 is two turbine bucket schematic representation of the embodiment of the invention;
Figure 14,15 understands for turbine bucket of the present invention, Combination Design and schemes;
Figure 16 is three cutting blade schematic representation of the embodiment of the invention;
Figure 18,19 understands for cutting blade Combination Design of the present invention and schemes.
Mark among the figure: the b width of blade, the h retaining ring, O revolves the heart, the y axle.
With reference to Fig. 1, this is to revolve line natural ratio evolution and by the angle radian for the treatment of naturally that rendering computer forms.It is by 1 beginning, is the so-called natural ratio of five powers (11.089 times) of the nature ratio numerical value that nature progression obtains of then serving as reasons after rotating a circle, as 0,1, and 2,3,5,8,13 ...By 3 the beginning, below each number average be front two numbers and, be the 3+5 sum as 8.If among the natural progression, a last number is U, and next number is L.Then positive ratio ψ=L/U; Inverse ratio value ψ
-1=U/L is positive ratio as 3/2; 2/3 is the inverse ratio value.When getting bigger natural progression, its positive ratio ψ=1.61803398875 ..., inverse ratio value ψ
-1=0.61803398875 ...Because same, so be referred to as golden section nature ratio again with the golden section numerical value that draws in the geometry.
In addition, rotatablely moving with per 360 ° is one-period.According to above one-period five times principle circumference is divided into five five equilibriums (72 ° * 5=360 °).With reference to Fig. 2, promptly revolve the outside five equilibrium of heart O by the center of circle and provide five straight lines, on each line segment, intercept each length that is equivalent to nature progression then as 1,2,3,5,8.Again each point is coupled together with curve, just become the line that revolves of a natural ratio.Obviously, just its every rotation has 1.618 times expansion or 0.618 times contraction for 72 °, as 89 to 144; 89 to 55.Its every rotation just has 1.618 for 360 ° in addition
5=11 times expansion or 0.618
5=1/11 contraction is as 3 and 34,5 and 55,8 and 89 ...
With reference to Fig. 3, be example with how much manufacturing systems, the positive five limit five-pointed star shapes of designing by tangent to periphery, wherein each bar line segment is the numerical value of " Fei Benna phase " natural progression all, as 3,5,8,13,21 ...The cycle of figure changes, and contains five power (ψ of natural rate separately
5) and five numbers of natural progression, for example 3,5,8,13,21 or 55,34,21,13,8th, positive limit shape is () five progression upwards-downwards-upwards in week motion.Again by 3 to 5,8,13,21,34th, () five times of natural rates (34: 3=ψ upwards-downwards-upwards in the positive five-pointed star shape one week motion
5=11.09).By 89 to 55,34,21,13,8th, (8: 89=ψ
-5=1/11) five powers of inverse proportion.
The nature isogonism revolves and contains 5 times (1.618 of ψ 360 ° of one weeks of line
5) spreading rate.And the number of degrees of ψ-power should be 360 °/5=72 °.But these number of degrees and multiple are bigger, and measure or calculate the isogonism that revolves line must be they differential.1 is minimum integer, is the principle of uniformity of one-period again with five powers, so 5 ° just become and calculate the index of revolving the line isogonism.
The smallest positive integral of Native digits is 1, and the differential spreading rate that revolves 1 ° on line is 72 evolutions of 1,6180339887, (d ψ=1.006705882).Equally, the differential shrinkage of revolving 1 ° on line is 72 evolutions of 0.61803398887, (d ψ
-1=0.993338787).According to the aforementioned five powers same principle that is one-period, five powers of differential rate (72 ° * 5=360 ° is changed into 5 ° * 72=360 °) are to calculate the exact method that the nature isogonism revolves the bank degree.With reference to Fig. 4, can draw the inward turning isogonism by following formula is 23.5 °.
With reference to Fig. 5, can draw the outward turning isogonism by following formula is 18.5 °
Fig. 6 is the plan view of flabellum of the present invention, and Fig. 7 is the schematic side view of a blade among Fig. 6, and wherein A, B, C are three kinds of different blade perk radians.Here again its formation is replenished;
A type perk radian: 1.618 times of distances with the flabellum diameter make to revolve line tracking for revolving heart O.Revolve on the line tracking camber line that intercepting is equal to flabellum width b at this and be its perk radian;
Type B and type perk radian: same as above, difference is that Type B is with 1.0 times of flabellum diameters, and the C type is for revolving the heart with 0.618 times of distance of flabellum diameter.
The diameter of the rotation fillet that forms when the flabellum diameter rotates for it is dotted line diameter of a circle shown in Figure 6.Flabellum width b then is the length of FG among Figure 10.The blade diameter definition is described with the flabellum blade diameter.
In addition, Figure 13 is a turbine bucket plan view of the present invention, the formation schematic representation of every blade among Figure 14,15 expression Figure 13.Figure 16 is a cutting blade plan view of the present invention, the formation schematic representation of Figure 17, the every blade of 18 expressions.In order on every width of cloth figure, to represent " incision edge " and " withdrawing the edge ", on Fig. 7, Figure 11, Figure 13, Figure 14, Figure 16 and Figure 17, to add the arrow of representing sense of rotation in a clockwise direction more clearlyly.In Fig. 6,13,16, the incision edge is withdrawn the edge and is represented with " 3 " with " 2 " expression.More specifically, can be referring to Figure 11, wherein EF is the incision edge, DG is for withdrawing the edge.FG is a circumference, and in Figure 14, EF is the incision edge, and DG is for withdrawing the edge, and FG is a circumference; In Figure 17, EF is the incision edge, and DF is for withdrawing the edge.
About the connotation of " shrinkage " and " spreading rate ", please refer to Fig. 4 and Fig. 5 is described further again.
At first, determine sense of rotation, for example Fig. 4 and Fig. 5, arrow is represented sense of rotation.In Fig. 4, ought revolve in the alignment and rotate 5 °, just go to the C point by the A point with O for executing the heart.If OA=1, then OC=Δ ψ
-5=0.993338787
5=0.967134706; ∠ PAC=23.5 °.
With reference to Fig. 5, when with O for revolving the heart, revolve 5 ° of alignment inner rotary, just go to the B point by the A point.Establish OA=1 equally, then OB=Δ ψ 5=1.006705882
5=1.033982124; ∠ XAB=18.5 °.
So if rotating member of the present invention with the isogonism that natural isogonism radian revolves line is: it is every to inner rotary 5 degree, just have the outer pivot angle of 18.5 degree and 1.033982124 times spreading rate to revolve line.Revolve every inwardly rotation 5 degree of line; Just have the interior pivot angle of 23.5 degree and 0.967134706 times shrinkage.The track that natural isogonism (5 °) radian revolves line is asked for an interview shown in Figure 11.
Fig. 1 explanation is seen above-mentioned; Revolve the heart among Fig. 2 with " O " expression, five straight lines are drawn from revolving the heart " O ", and angle is 72 ° each other, and natural isogonism radian revolves line from the expansion of " O " beginning or the track of contraction.With the intersection point of article one straight line be " 1 ", second is " 2 ", the 3rd is that " 3 " the 4th are " 5 ", the 5th be " 8 ", revolving the intersection point that line rotates a circle with article one line again is " 13 " ...
Among Fig. 3, the length of each bar line segment is exactly each numerical value of front nature progression in the regular pentagon five-pointed star shape, and for example 3,5,8 ... figure is big more, and numerical value is accurate more.
Existing explanation repeats no more here above Fig. 4,5,6,7.
Figure 11 is existing explanation in specification, and Figure 12 does for helping to understand explanation Figure 11, and H represents to revolve the track of line.In Figure 11,, then can obtain ODG and revolve line tracking for revolving the heart with " O ", it is equivalent to it " H " among Figure 12.Equally,, then can obtain OEF and revolve line tracking for revolving the heart with " P ", it also is equivalent to it " H " among Figure 12.Accomplish fillet with the DGFE connection and at G, F place, then can become a flabellum among Fig. 6, three flabellums are arranged and are fixed on OA with 120 ° is on the retaining ring h of radius, then constitutes the rotation flabellum, and it is connected with rotating shaft, can be by the motor driven rotary.
Figure 13 is a turbine, Figure 14 is the formation of Figure 13 turbine blade, promptly at first makes five equilibrium on the circumference that with " OB " is radius, has 30 as turbine, then on said circumference, make 30 five equilibriums, as P, Q, R, S ..., then respectively with P, Q, R, S ... for revolving the heart, make to revolve line tracking, with P for revolving the heart, intersect at E, F respectively and intersect at D, G respectively for revolving the heart, establish OB=1, OC=1.618 with Q; OA=0.618, Figure 15 effect is identical with Figure 11, and the circle that with OA is radius is turbine bucket retaining ring h, Figure 16 is a cutting blade, and Figure 17 is the formation schematic representation of Figure 16 blade, promptly makes three concentric circles, make OB=1, OA=0.518, OC=1.618, for revolving the heart, making ∠ FOD is 144, makes track as shown in figure 18 by D with " O ", obtain the F point, making ∠ FOD then is 72 °, with " P " for revolving the heart, make track, obtain E, F, connecting DEF then is a slice blade.The circle that with OA is radius is blade retaining ring h.
The inside and outside pivot angle that the nature isogonism revolves line is that the index of calculating is a key point with 5 °.Since all 5 °, ψ
5, Δ ψ
5, pentagon, five-pointed star shape, five " its progression of Fei Benna " etc. confirm relevant with the one-period of moving system all.The isogonism of being obtained also confirms it is the quadrant of various natural phenomenons on the earth.
The formula of being made with the golden section nature ratio (ψ) and the relation of Ratio of the circumference of a circle to its diameter (π) is an example earlier, visible π and ψ
5All with motion
The one-period of system is relevant.
Be example with how much manufacturing systems again, the positive five limit five-pointed star shapes of designing by tangent to periphery, wherein each line segment all is the numerical value of " Fei Benna its " natural progression, the cycle of Fig. 3 figure changes, and contains five power (ψ of natural rate separately
5) and five numbers of natural progression.For example:
3,5,8,13,21 or 55,34,21,13,8th, regular pentagon is (upwards-downwards-upwards) five progression in week motion.Again by 3 to 5,8,13,24th, () five times of natural rates (34: 3=ψ upwards-downwards-upwards in the positive five-pointed star shape one week motion
5=11.03).By 89 to 55,34,21,13,8 also is (8: 89=ψ
-5=1/11) five powers of inverse proportion.
The nature isogonism revolves and contains 5 times (1.618 of ψ 360 ° of one weeks of line
5) spreading rate.And the number of degrees of ψ first power should be 360 °/5=72 °.But these number of degrees and multiple are bigger, and measure or calculate the isogonism that revolves line must be they differential.1 is minimum integer, is the principle of uniformity of one-period again with five powers, and 5 ° just become the index that the line isogonism is revolved in calculating.
Differential-Du=Δ ψ=1.6181/72; Differential five degree=Δ ψ
5=1.6185,72.
The spreading rate of logarithmic spiral (A) is weekly 2 times (multiple in n week is 2n).Relatively the nature isogonism revolves line (B) following difference.
5 ° of spreading rate A of 72 ° of spreading rates of 360 ° of spreading rates, 2.0 1.148698355 1.009673533B 11.089 1.618033989 1.033982124
If calculating, the same quadrat method of revolving line chart 3,4 with the nature isogonism makes comparisons 3 ° 47 ' 29 of the outer pendulum isogonism of logarithmic spiral ".And its interior pendulum isogonism is 8 ° 12 ' 31 ".Those number of degrees and periodic motion are provided with any relation.There is not any identical place with natural phenomenon yet.And natural isogonism revolves 23 ° 26 ' 32 of the interior pivot angle of line ".The angle of inclination of rotation of the earth axis is " north and south the returns limit " number of degrees (TRPICLIALIMILS) just.18 ° 26 ' 32 of the radian of its outer pivot angle " earth atmosphere is astronomical twilight under the horizon to the refractive index of sunlight just again) TMILIGHTLIMITS) and limit.The tellurian circulation alternating activity that lives is all created out by these two quadrants.
5, ° 72, ° 360 °, the number of degrees such as 23.5 ° and 18.5 ° all are the number of degrees of each natural phenomenon on the earth.Combining the line that revolves that these number of degrees and front one-period five times principle design go out has: the satisfactory property of " simple harmonic motion " periodically; The high efficiency that the ability of living on the earth is arranged; Also just like the kneading of natural phenomenon.Natural isogonism is revolved line is applied on the engineering goods, can make operation more smooth along and raise the efficiency, but noise-decreasing and loss.
With reference to Fig. 6,7 visible rotating members of the present invention is a kind of natural isogonism radian flabellum or paddle, it generally is made of three flabellums or paddle, every flabellum or paddle include incision edge 2 and withdraw edge 3, and the rotating member that is made of flabellum of the present invention or paddle is connected with rotating shaft with existing Placement or constitutes one with rotating shaft.The specific design of Figure 11,12 explanation nature isogonism radian flabellums or paddle, the length of wherein establishing OB is 1; AB is 0.618, and OC is 1.618, is respectively that three concentric circles are made in the center of circle simultaneously with O.Get OQ=OB, make BQ perpendicular to OP and get OP=OB, respectively with P, Q for revolving the heart and being starting point with O, make each track to 72 ° of outward turnings, intersect at D and G and E and F respectively.The circle that with OA is radius is the fixedly axle center of flabellum or paddle.The wedge angle of DEFG promptly becomes a flabellum or the paddle shown in the circle 6 through cavetto.
The radian of flabellum or paddle perk can be complied with different demands (promoting functions such as empty G﹠W) and be determined.With reference to Fig. 7, in general, if the present invention as the flabellum of blowing, then its flabellum perk radian is to do one and revolve line for revolving the heart with 1.518 times of distances of flabellum diameter, wherein intercepts one section, then is flabellum cross section radian, as the camber line of representing with A among Fig. 7.If as exhaust fan, then its flabellum perk radian is that 1 times of distance with the flabellum diameter is that the line tracking that revolves that revolves the heart forms, as the camber line of representing with B among Fig. 7.If promote as liquid, as the propulsion device paddle, then its paddle perk radian is that 0.618 times of distance with the paddle diameter is that the line tracking that revolves that revolves the heart forms, as the camber line of representing with C among Fig. 7.
With reference to Figure 13, rotating member of the present invention is a kind of natural isogonism radian turbine bucket 4, and it is generally by the polylith blade, and for example 30 blades constitute.Every blade includes incision edge 2 and withdraws edge 3.The specific design of Figure 14 and 15 explanation nature isogonism radian blades, the wherein incision of every blade and withdraw the edge and the radian of cross-section perk itself, all be to revolve the manufacturing of line Combination Design with natural isogonism, its method is with identical described in the embodiment 1, difference is that the present embodiment number of blade is more, and its perk radian generally is that 1 times of distance with blade diameter is that the line tracking that revolves that revolves the heart forms.
Embodiment 3
With reference to Figure 16, it is a kind of natural isogonism radian rotating blade 5 that rotation of the present invention constitutes part, and it generally is made of two blades.Every blade includes incision edge 2 and withdraws edge 3.The specific design of Figure 17 and 18 explanation nature isogonism radian blades, the wherein incision of every cutter piece and withdraw the edge and cross-section perk radian itself, all be to revolve the manufacturing of line Combination Design with natural isogonism, its method is with identical described in the embodiment 1, institute's difference is the negligible amounts of blade, and wherein one side of rotating blade can be threaded to 144 °, and its perk radian can be decided according to different needs.The rotating blade usefulness of scraping for example as plane, then blade is a plane, does not have radian, as the usefulness of cutting and pushing, then its blade perk radian generally is that 1 times of distance with blade diameter is that the rotating locus that revolves the heart forms.
By above-described embodiment as can be known, rotating member of the present invention is because with nature isogonism radian modular design, So can reach the performance elements, harmony and natural uses, and kneading natural law texts has Low noise, the characteristics of energy-conservation and high efficiency.
Claims (10)
1, rotation blade, it is a kind of with the axle center, it is rotating center, be called for short and revolve circumference that the heart is the center and to be fixedly arranged on laminar body on the running shaft by this circumference equalization, as electric fan, propeller blade, turbine bucket and rotary cutter sheet, it is characterized in that: these laminar body contain the incision edge and withdraw the edge, the line that revolves at said incision edge with the isogonism radian that natural isogonism revolves line is: revolve every inwardly rotation 5 degree of line, the shrinkages of 23.5 degree are just arranged or revolve line every, the spreading rates of 18.5 degree are just arranged and constitute to inner rotary 5 degree; The said line that revolves of withdrawing the edge with the isogonism radian that natural isogonism revolves line is: it is every to inner rotary 5 degree to revolve line, the spreading rates of 18.5 degree is just arranged or revolve every inwardly rotation 5 degree of line, the shrinkages of 23.5 degree are just arranged and constitutes; That is to say that the incision edge contains every inwardly rotation 5 degree, have the shrinkages of 23.5 degree, every to inner rotary 5 degree, have the line that revolves of 18.5 degree spreading rates; Withdrawing the edge then has whenever to inner rotary 5 degree, has 18.5 degree spreading rates, every inwardly rotation 5 degree; Have the line that revolves of 23.5 degree shrinkages.
2, rotation blade as claimed in claim 1 is characterized in that: these laminar body are two and are cutting blade, and equalization is symmetricly set on the running shaft.
3, rotation blade as claimed in claim 1 is characterized in that: one side in these laminar body be threaded to 144 the degree.
4, rotation blade as claimed in claim 1 is characterized in that: these laminar body are the plain film shape.
5, efficient rotation structure member as claimed in claim 1, it is characterized in that: these laminar body are three, and are electric fan or propeller blade, and equalization is arranged on the running shaft.
6, as claim 1 or 5 described rotation blades, it is characterized in that: the perk radian of these laminar body is that 1.618 times of distances with this laminar body diameter are that the line tracking that revolves that revolves the heart constitutes.
7, as claim 1 or 5 described rotation blades, it is characterized in that: the perk radian of these laminar body is that 1 times of distance with this laminar body diameter is that the line tracking that revolves that revolves the heart constitutes.
8, as claim 1 or 5 described rotation blades, it is characterized in that: the perk radian of these laminar body is that 0.618 times of distance with this laminar body diameter is that the line tracking that revolves that revolves the heart constitutes.
9, rotation blade as claimed in claim 1 is characterized in that: these laminar body are 30, and are turbine bucket, and equalization is symmetricly set on the running shaft.
10, as claim 1 or 9 described rotation blades, it is characterized in that: the perk radian of these laminar body is that 1 times of distance with this laminar body diameter is that the line tracking that revolves that revolves the heart constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111597A CN1062339C (en) | 1994-11-08 | 1994-11-08 | Highly efficient rotary structure member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94111597A CN1062339C (en) | 1994-11-08 | 1994-11-08 | Highly efficient rotary structure member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1122879A CN1122879A (en) | 1996-05-22 |
| CN1062339C true CN1062339C (en) | 2001-02-21 |
Family
ID=5035445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94111597A Expired - Fee Related CN1062339C (en) | 1994-11-08 | 1994-11-08 | Highly efficient rotary structure member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062339C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008872A (en) * | 2010-10-27 | 2011-04-13 | 常熟理工学院 | Fan-shaped helical blade |
| ES2810352T3 (en) * | 2014-04-08 | 2021-03-08 | Cleanfuture Energy Co Ltd | Flyover loss resistant propeller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101602A (en) * | 1985-03-13 | 1986-09-10 | 西屋电气公司 | Steam turbine has the fabricated blade of spanwise cooling passages for gas |
| CN1034044A (en) * | 1988-01-06 | 1989-07-19 | 杨惠亭 | The wing impeller that a kind of low specific speed centrifugal pump is used |
| CN103986861A (en) * | 2014-05-29 | 2014-08-13 | 齐军 | Digital high definition network camera special for thermal vacuum environment and system |
-
1994
- 1994-11-08 CN CN94111597A patent/CN1062339C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101602A (en) * | 1985-03-13 | 1986-09-10 | 西屋电气公司 | Steam turbine has the fabricated blade of spanwise cooling passages for gas |
| CN1034044A (en) * | 1988-01-06 | 1989-07-19 | 杨惠亭 | The wing impeller that a kind of low specific speed centrifugal pump is used |
| CN103986861A (en) * | 2014-05-29 | 2014-08-13 | 齐军 | Digital high definition network camera special for thermal vacuum environment and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1122879A (en) | 1996-05-22 |
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