WO2020055221A1

WO2020055221A1 - Energy-efficient bladed propeller

Info

Publication number: WO2020055221A1
Application number: PCT/KZ2019/000017
Authority: WO
Inventors: Алдан Асанович САПАРГАЛИЕВ
Original assignee: Алдан Асанович САПАРГАЛИЕВ
Priority date: 2018-09-10
Filing date: 2019-09-11
Publication date: 2020-03-19

Abstract

The present invention relates to bladed propellers for operating in a fluid medium and can be used in the form of fans and in the drives of self-propelled vehicles (ground vehicles, above-water and underwater vehicles, and aircraft). The proposed novel type of bladed propellers has at least one characteristic selected from the group: (a) a cascading zone configuration including two or more bands or zones, each of which has one or more groups of blades disposed therein; (b) the contours of the characteristic trajectories, for example of the support systems of a group of blades (a hub or base of a group of blades and the supports thereof) or of the ends of the blades in bands between zones are configured alike and such as to provide a form selected from among TCSVCC forms (TCSVCC - "two circle-sector vertex closed curve").

Description

Energy efficient blade screw

The present invention relates to rotary blades for a current environment and can be used for use as a fan and for use on self-moving apparatuses. US 20130306802 A is known, where it offers a system of rotary blades. In reality. US20130306802 A offers two coaxial blade screws. The main disadvantage of this known system of two coaxial blade screws is that they lead to the appearance in the body of a significant level of noise from the working system of blade screws. In modern helicopters, one of the main technical problems is the torque of a single blade propeller transmitted to the helicopter. To compensate for the rotor torque, two technical solutions are used - a tail beam of considerable length is specially created from the steering with a blade rotor at its end, or a system of two coaxial rotor blades of opposite rotation is used. Both technical solutions have disadvantages.

The main disadvantages of such technical solutions are as follows.

Tail boom of considerable length with steering paddle! a screw leads to the need for additional material costs and an increase in the mass of the helicopter. In addition, the tail rotor increases the helicopter's energy consumption by 10%.

The system m of two coaxial rotor blades of the opposite rotation is a system: energy-intensive (not energy efficient) - cumulative lifting aug and coaxial two rotors are significantly smaller than the total lifting aug created by each of the two rotor blades when they are separate from each other; material intensive and heavy.

A close analogue of this invention is WO 2016153328 AZ, where for SMA electric drives (SMA self-moving apparatus ") were proposed:

- types of placement of the rotor blades on rotational (rotational symmetry) electric motors;

sector (single-sector and multi-sector) rotational electric motors;

branched subsystems of rotary electric motors with an executive body in the form of single-plane two cascades (two subsystems) of blades of vit and opposite rotation, made to ensure the possibilities of maximum energy-efficient gyo and self-combined torque;

- rotary electric motors with an executive body in the form of two connected cascades of blades, made to ensure the maximum possible energy efficiency.

The main disadvantages of WO 2016153328 AZ are that:

not all types of blade propellers with maximum energy efficiency and self-combined torque are considered;

- not all types of blade propellers with maximum energy-efficient efficiency were considered;

- there are no information paws for assessing the geometry of the groups of blades and zone widths to ensure the calculation of maximum energy efficiency and self-combined circumference and maximum

The main task he sewed the act of invention are the proposal of new types of energy-efficient screws for the current environment.

The purpose of the invention is to reduce the energy consumption of screws for the current one.

The claimed technical solutions meet the criteria of the invention, since at the filing date of the application no similar solutions have been identified. The technical solutions proposed here have a number of significant differences from its known analogues.

The proposed concepts and device for its implementation can be implemented on the basis of existing equipment using materials, components and technologies developed in the industry. A blade screw is known for converting the movement of Wiig blades into the fluid motion of a current medium (gases and liquids), and vice versa, including blades, at least one SSIB pair (SS1B pair is a subsystem of two movable, interacting subunits relative to each other) - etunitsu is the base for attaching the blades and their supports to them, including the inductively interacting _* subunits (rotor and etater) with ICS (ICS is the surface and the induction and oh and sienn and I).

The present invention can be practiced in many ways, and only certain constructions that contribute to a better understanding of the proposed technical solutions will be described by way of examples provided in the accompanying drawings.

In FIG. Figures 1-16 show variants of bladed screws made in a cascade form — it includes two or more zone noises in each of which one or more groups of blades are placed.

A systematic general notation is introduced on these figures: stomping spikes are shown in the form of faceting with a line in the middle but a height (for example, see Fig. 2, where P], P2, PZ, ... P6 are rotor blades);

A _'07 and R ₍ - are the radii of curvature, respectively, of the first (sonor ”) vertex sector of the circle, the second vertex sector of the circle and two lateral secant lines; y _m and y _R , are sharp coils between the perpendicular to the longitudinal axis of symmetry and radii directed to Granine of the central corner, respectively, of the first (“reference”) and second vertex sectors of the circle; / ₍₎ is the distance between the giants of the two vertex sectors of the circles; Л ' _? , S _l and, S ^' ₀ , the area, respectively, of the second ( external), the first huyaeov-toi, designed to accommodate pite blades and the central (it may be closed) area; Лг and Дг, are the widths, respectively, of the external and internal zones;

- accordingly, the width and area of the SNM belt (SNM - the contours of the characteristic lines of motion), for example, of the support systems of the blade group (the hub-base of the blade group and their support), the ends of the blades; C hi and C are the rings of the groups of blades.

On Fig, 1 shows a General view of the blade screw, which includes a Central region, the outer and inner tonsons of widths, respectively

(in order not to pile up the drawing, they are shown without blades) for which the SNM (SIM - contours of characteristic lines of motion), for example, the ends of the blades, the stuns of the base of the group of blades and their supports, are made in the SNM belts to ensure the shape of a common axis selected from similar curves ( longitudinal) symmetry, which we will call two steep-sector vertex-closed curve - TCSVCC (TCSVCC - two circle-sector vertex osed curve).

TCSVCC, in general, is smooth and of the same sign curvature (the curvature does not change sign) of a closed curve, the two end faces (vertex sectors of the steep) of which I represent a failure, secor circles with a ratio of curvature radii i? ₀₁ and R _iK limited to

1, distance £ ₀ between centers

* 0!

the vertex sectors of the circles are limited within 0 < ₍₎ <oo, the sides are the same line segments whose radius of curvature is limited { ₊ ft

within oo <R .. <~ Л - - 91. Moreover, R ₍ - and the angles i // _m and y _{2 are} defined as the fuzzy oh parameters R ₍ and _{{} 2} and 1 ₀

For blade spikes can polgat that the ratio of the radii of curvature, and I _n

R _{ln of the} two vertex sectors of the circles are limited to—

<1, distance

5 I _(n between the centers of the vertex sectors of circles is bounded within 0 i ₆ <5? _0J .

Orienting the equality of the specific strength of the yagi to the areas in the two zone zones,

A/·,

determine the optimal value of the relation · --- · (An, And AG, - width

At, respectively, of the second (external) and first zone zones) for the maximum effective functioning of the rotor blade from the equality of the swept areas S, - 5,, where 5, and

areas of the second (external) and first zone zones, respectively. For the general form of the TCSVCC form, the optimal ratio is represented within

Ar _v is the width of the SNM belt.

Provided that the specific thrust force is equal to the area in two zone zones, expression (1) takes the form

The specific thrust on the areas in the two belt-tones can be unequal.

Coefficients and 3, with a function ⁱⁿ expression (1),

selected from considerations of assessing the difference in specific traction force over areas in two belt zones and the optimality of the geometry of the rotor blade.

FOR the case when the TCSVCC go into shape with one axis of symmetry and straight lateral lines, i.e. when going to {'y _/ l! {Ά _/ ^ ΐ absolute angles y _R! and y _R are equal, and! // _{l> (~} > ~ <// _L! - the angle y changes sign, we get:

For the case when TCSVCC go into the double-symmetric form, i.e. the transition to I _m = I _(2}, y _M - ^ _A2 0, we ^{_{obtain: W 'm -> w,}} = ^ Si ^ m-Y?.' / _n,.

^R2 ~ Aί _j 360 A sin z // _l

For the good news, when TCSVCC go into a double-symmetric form with straight side segments, i.e. upon transition to

we get:

For the case when TCSVCC go into the form of rotational symmetry, i.e. at

I _n

transition to Д (И ^ 02 »" Сд ^ "2 ⁰

we get: I · ', ^ · And ^' ?

t ~ A?

The blade system for two zone zones is selected from a series whose members depend on the location and direction of the blades from the hub — PP I, where 1 = 1 ~, 11, II, II,

f, | †,

† j, TT _» C, IT, and notation is introduced:

(1) for two connected groups of blades located in two adjacent zones-zones (connected with two groups of blades): - with two groups of multidirectional blades (or a connected cascade of bidirectional blades); fl - with a group of externally directed blades; 11 with a group of internally directed blades;

(2) for groups of blade located in two zone belts (in each zone of the group of blades one group or two groups are selected from a row in the form of a connected two-cascade): - f bidirectional directed blades of the outer and inner cascades of blades; C - with internally and bi-directional directed "blades, respectively, of the outer and inner cascades of blades; † - with externally and bi-directional directed blades, respectively, of the outer and inner cascades of blades; t † - with bidirectional and externally directed blades, respectively, of the outer and inner cascades of blades; C - with bidirectional and externally directed blades, respectively, of the external and internal cascades of blades; †† - e blades with externally directed two subsystems; | ] ~ with internally directed two subsystem blades; | † - with internally and externally directed blades, respectively externally about and internally about cascades.

In FIG. 2-5 show some of the fundamental possibilities for performing blade systems in tone belts similar to those rolled in FIG. 1.

In Fig. 2, a holy two-cascade system of blades is rolled to it when placing pite blades in the form P f - with two groups of multidirectional blades (or a connected cascade of bidirectional blades). If S is absent, or, we obtain a monophonic rotor blade with single-stage blades when placing rotor blades of the type, respectively, PPi) - with a group of outwardly directed blades or P U - with a group of internally directed blades. Note that the outer rings of chin Chi, (rolled in fng. 2, are also present on each of their figures) ns are necessary for the functioning of the blade vita.

The placement of blades of the PPP type, as well as any zonal cascade-type blade screw, makes the blade screw more energy efficient (as the lever of the torsional moment is smaller), with the same total lengths of the loshgegs than when placing the blades in the form of RRΪ1 or PP in a single-zone blade screw.

In Figs. 3-5, two belt-zones of a blade screw and a group of blades are shown (in each zone of the group of blades one group is selected from a row, or two groups in the form of a connected two-stage) when placing a group of blades, respectively, in the species; PP † f ~ with externally directed two groups of blades; PP] † - with internally and externally directed groups of blades, respectively, in the outer and inner belt-tones; PP †! - with externally and bidirectional directed groups of blades, respectively, in the outer and inner belt-tones.

Rotary blades with two-ton groups of blades, as opposed to a single-color or two-ton pair of double-cascade groups of blades, can operate in self-compensation mode, due to the rotation of two groups of blades in opposite directions, the torque of “recoil” from the blades to it.

A g ₂

When calculating the ratio r, it is necessary to take into account that about the SIM belt

located between the first and second zones: in FIG. 2 is a single SNM belt

supporting system of the svyadno-two-stage subgroups of blades; in FIGS. 3 and 5 — this is a single SIM $ _S2 belt supporting system of the outer group of blades; in FIG. 4 is a double SIM belt, _p are the support systems of the outer and inner groups of blades. Also, when calculating, it is necessary to take into account that: in cases similar to those in FIG. 3 to the area of the neutral region ' _{0 is} joined the area 5 _{) of} the SNM belt - the supporting system of the inner group of blades; in cases like those of FIG. 5, id of the area of the first dona 5, subtract the area

belt SNM - the support system of the inner group of blades, which divides the first Don into two -

and S _S2 .

Eeyore FIG. 6-9, the systems are rolled when the TCSVCC of the rotor of the rotor of FIG. 3 go into its various particular forms. In FIG. Figure 6 shows the system when the TCSVCC go into shape with a single axis of symmetry and straight side segments.

In FIG. 7 A system is shown when the TCSVCC changes to a bi-symmetric form.

In FIG. Figure 8 shows the system when the TCSVCC goes into a bi-symmetrical form with straight side segments.

In FIG. 9 The system is rolled when the TCSVCC transition to the form of rotational symmetry. Of course, a TCSVCC system with any type of blade placement can go into any of its particular forms of TCSVCC. In particular, and not only rolled in FIG. 3, but also with any other type of location of the danger, for example, shown on the fit. 2, 4 and 5, can go into any of its particular forms of TCSVCC, for example, rolled in FIGS. 6-9.

Note that systems with rotational symmetry TCSVCC can be implemented not only with a ring-shaped support system, as rolled in FIG. 9, but also with a support system of a concentrated form, as shown in FIG. TO). The central region of the lobular spike I can be performed in a concentrated form, as rolled in FIG.

Expressions (1) - (4) are valid for all the above- and below-mentioned species, lobed wines, taking into account some of their noted features.

In FIG. 12-16, while some particular features of the execution of the groups of blades on a two-ton blade propeller ah are described. In FIG. 12-15 rolled that the number of blades in the internal and external groups can be vat; for example, in FIG. 12 and 13 are rolled for a juvenile cadecade group of blades, fit, 14 and 15 are rolled for a single group of blades. The lower ends in the inside of the bursts * can be free, as shown, for example, in FIG. 16, in cases where the blades are rigid and withstand the effects of centrifugal force.

Claims

Claim

1. A rotor blade designed to convert the movement of the rotor blades into the translational motion of the current medium (basics and fluids), and vice versa, includes the blades, but at least one SSIB pair (SSiB pair is a subsystem of two, relatively mobile, interacting subunits) - the hub is the base for attaching the blades and their supports, including induction-retracting subunits (rotor and etater) with ICS (ICS ~ induction adhesion surface), characterized in that it has at least one feature selected hydrochloric from the group:

(a) vysholpen zoino-cascadiom form — includes two or more noves-zones, each of which contains one or more guineas of the blades;

(b) SNM (SIM contours of characteristic lines of motion), for example, support systems of a group of blades (base otunins and groups of blades and their supports), the koan of the blades in the SNM belts are made similar and provide a shape selected from a number of forms TCSVCC (TCSVCC - · · Two croups ”sector peak closed curve).

2. Hook screw on and. 1, characterized in that the blade system for two noves is selected from a row whose members depend on the location and direction of the blades from the hub — PP Ϊ, where ϊ = 1 = 8, 11, Y, II, t |, Ts, † £, ^† †, † |, ††, q, j †, and the notation is introduced: (!) Of _/ proffer connected groups of blades arranged in two adjacent GNFR-zones (NIO communication _{'dvuhkaekadiaya} vanes group) f- with two groups of divergent blades (or a related bidirectional cascade vanes); ft - with a group of externally directed blades; 0 - with g uppa internal-tshravlennmkh blades; (2) for groups of bushgas located in two zones-zones (in each zone of the group of bushgames, one group or two groups are selected in the form of a connected two-cascade): П - with bidirectional directional blades of the external and internal cascades of forestgas; C - e internally and bi-directional directional vanes, respectively, of the external and internal cascades of blades; † - with externally and bi-directional directional vanes, respectively, of the external and internal cascades of loposegs;

- with bidirectional and externally directed vanes, respectively, of the external and internal cascades of grasshopper;

- with bidirectional and externally directed blades, respectively, of the external and internal cascades of grasshopper; † f - with blades externally directed by two subsystems; C - with internally directed two subsystems of the blades; | † ~ with internally and externally directed lobes, respectively, of the outer and nogren and its kae cal o.

3. Blade screw but n. 1, characterized in that it includes the Central region and external but relative to it, two belt zones for the movement of the r group of blades - an external hopper width

, and the inner race with a width of A / - _[ , a SIM belt of width D / y

(located between nons), with the fifth form of the interband zone is described by similar TCSVCC, and the ratio

limited to

Where

A ' _{) R _{{] 1} and R are the radii of curvature, respectively, of the first ("reference") vertex sector of the circle, the second vertex sector of the circle, two lateral sector lines; y _Άc and y _in are acute angles between the perpendicular to the longitudinal axis of symmetry and the radii directed along the boundary of the neutral angle, respectively, of the first (“reference”) and second vertical sectors of the circle; ί the distance between the centers of the two vertex sectors of the circles; , V, ~ belt width С НМ.

4. The blade screw according to claim 3, characterized in that it is made with at least one of the possibilities: includes two belt zones of groups of blade systems and is made in the selected row: it is made with self-compensation of the total torque and maximum energy efficiency; in this case, the blades in two zones rotate in opposite directions; made with the possibility of maximum energy efficiency based on the choice of the ratio of the widths of two tones, at this ohm the blades and in two zones rotate in the same direction, for example, connected to the cassette 11 and a small and small th.

5. Blade screw but also. 1, characterized by g m, that in it the number of blades in the inner and outer subgroups of the eujiao-two-cascade system

and / or in two adjacent r groups of blades are not equal.