MXPA96005509A - Jet actuator particularly for pulse sprinklers - Google Patents

Abstract

A jet actuator, particularly for rotating pulse sprinklers, includes:a spout (3) and a nozzle (7) for generating a jet;a deflector (10, 100) which can oscillate freely in a transverse direction between a position that lies completely outside the jet and a position in which it is immersed in the jet to the maximum extent;a supporting arm (8) for supporting the deflector to transfer the energy drawn from the jet;the deflector (10) has a main surface that has a curved andconvex shape that is approximately cylindrical, with its axis substantially at right angles to the jet, and remains substantially aligned with the stream of the jet so as to generate a negative pressure force produced by fluid dynamics, and optionally has a secondary surface which is preferably flat, is inclined with respect to the main one at a high angle, and can interact with the jet to produce, at a critical incidence value, the separation and complete breakup of the fluid column on the curved main surface.

Description

'"CHOICE TITLE PARTICULARLY PIRFLIR PULSE IRRIGATORS FIELD OF THE INVENTION The present invention relates to an actuator of r > jet particularly for action irrigators gi ato i. The LVO device of con rmity with the invention can (• it has been successfully applied to the action of others "" "'' Hydraulic systems, such as valves and valves Gate ID, systems for signaling1 and / or with * leveling the level of water basins or currents, located in regions that are not connected to power lines, in developing countries or in countries that have energy resources ll ated. 115 e knows that the rotating pulse irrigators are generally constituted of a body only conduit, "which has, at one end, a connection to connect to a line to feed water presupposed, and has, in the former. kingdom opus + o, a nozzle to produce a continuous stream that 2 (1 has a predetermined diameter and scale) The union is of the rotatable type, with an approximately vertical axis of rotation, and which is anchored to a structure or a tracker, which rests on the floor or is rigidly spliced to the same 25 To allow a uniform distribution of water over a circular region, through an adapted actuator, that of the jet that came out of the same The conventional jet actuators consist essentially of deflecting means, which are The prefixes for conducting the delivery of the jet energy are periodically carried out with this, generally, the deflecting means are opposite a certain distance from the nozzle and are routed in the outer arm of one arm, which is mounted on the arm. - "onduct or in a connector elbow", so that this can oscillate, The energy driven by the detlectores means becomes a force of rotation, which is applied to the conduit to oppose a contrast action of braking means, the which are associated with the rotary union The deflecting means have the additional function of braking and periodically interrupting the jet, to obtain an optimal radial distribution of the water.

BACKGROUND OF THE INVENTION Examples of pulse irrigators with jet actuators are described in US Patents. Nos. 3, 74, 720 and 4,231,522, in French Patent No. 2,653,357, in German Patent No. 1,151,145, in Swiss Patent No. 593, b52, and in European Patent No. < ) 7 98 »A first disadvantage of these known actuators is their limited flexibility in use, since for one form and ~ V? N < The deflection of a deflector given the optimal utilization scale is relatively narrow with respect to the variations nn the nozzle diameter and operating pressures. The known aerators are in fact generally prefixes to operate optically small diameter jets and low operating fu-tions, or with wide di-meter jets and high operating pressures. The triggered! It is suitable to operate < "on high > These are highly efficient in terms of flow dynamics and generate pulse forces that are so intense that they require proportional braking means, both for the arm and for the joint. Another disadvantage is the considerable complexity of the known actuator devices, especially in reference to the geometry of the deflecting means. Another disadvantage is the fact that the media The reader must be located in a specific and precise starting or starting position to start operating, otherwise the device does not start to operate. The purpose of the invention is to eliminate the written disadvantages previously providing a jet actuator that can be applied to rotating irrigators and other hydraulic devices, and that can operate optimally within a wide range of jet diameters and operating pressures. actuator that generates - wrvas accusers that go to a point re 1 at i vamont small when the paranets G? S previous aripn, \ >to avoid the use of proportional or specular braking means. Another objective is to provide an actuator applied to a greasy pulse irrigator, which allows to distribute an ormemente and radial to the jet. Another objective of the invention is to provide a jet ejector that is reliable in terms of the initial stages. Another object of the invention is to provide a jet actuator, which has an extremely simple and inexpensive structure. This intention and these objectives are achieved by means of a jet actuator, particularly to automatically operate hydraulic systems such as rotatable pulse irrigators, which consists of: means for generating a - free presumed water tank that is directed "along a nal length; a baffle can oscillate freely in a transverse direction between a position that is completely outside the jet and a position in which it is immersed in the jet at a maximum point, even if it conducts a torque of its energy; means to support the reader-to transfer the energy carried from the jet towards the unit to be operated, also characterized by the. deflectoi has a main surface that has a convex and curved form that is suitable to enter the metal to the mind that remains substantial to the mind with the current, to generate a Negative pressure force produced by the flow dynamics that tends to roger the deflector into the jet during the initial oscillation and during the operation in the steady state.Preferably, the deflector is located so that its curved main surface The deflector is arranged so that during its immersion in the jet, the axis of the jet is incident to the main surface with a gradually increasing angle of incidence. The main surface may be approximately cylindrical, with a relatively long and constant radius of curvature and with an axis that is substantially at right angles to the axis of the jet and which Read a transverse right transverse section that is essentially fopn < A circular arc with a bead that forms, with respect to the axis of the jet, a relatively small angle of incidence incident to the intersection in the column. Advantageously, the average angle of incidence has a critical value in which the flow column of the jet is braked and deviated towards the main surface, with a consequent sharp fall in the velocity. negative pressure produced by the flow dynamics, producing a propulsive reaction force in the as-direction,. Since the negative pressure forces produced by the flow dynamics vary very little when the water pressure and the diameter of the water flow, the actuator allows a wider scale of operation with the same reader and with an effectiveness substantially constant. The negative pressure forces acting on the extrados of the convex main surface are sufficient to ensure the start-up of the device and its opposition in a steady state even at very slow flow rates and pressures; the device is in this way ex romadament e reliable in any operating condition. Since the action interacts with the flow in a predominantly tangent direction, it does not significantly reduce the reach of the jet and allows to achieve a < 1? The water connection is satisfactory in a direction relative to the axis of rotation. The actuator has a very simple structure and a cost of manufacture. Other features and advantages of the invention will become apparent from the detailed description of some preferred but not exclusive embodiments of the poplar actuator according to the invention, illustrated only by way of non-limiting example in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a general perspective view of a first embodiment of an actuator according to the invention, mounted on a puller; Figure 2 is a sectional bottom view of a detail of Figure 1, shown on an enlarged scale, taken at? length of the plane L I- J I; Figure 3 is a sectional side view of the detail of Figure 2, taken along the vertical plane III-III; Figure 4 is a front view of the detail of the figures 2 and 3; Figures 5 to 8 are side views of the actuator of Figure 1 under different operating conditions; The figure < 3 is a general perspective view of a second embodiment of an actuator in accordance with the invention, mounted on a rotating actuator.; Fig. 10 is a sectional side view of the actuator of Fig. 9, taken along the plane X-X; Figure 11 is a sectional bottom view of a detail of the actuator la Figure 10, taken along the plane XI -XI; Figure 12 is a sectional front view of the actuator of Figure 10, taken along the plane XTT .i; Figures 13 and 14 are schematic sectional views of the actuator d-? Figure 9 in two different operating positions. Referring to the previous figures, a jet breeder according to the invention, generally designated with the reference numeral 1, applies a puller or gir sharper 2 of conventional type.

DETAILED DESCRIPTION OF THE INVENTION The actuator can be advantageously used to drive step by step other hydraulic devices having a prospected water source, such as valves, gate valves, and signaling and control devices close to currents and water basins. Particularly, the rotatable irrigator of figure 1 consists of a conduit 3, which forms a first longitudinal axis g which is inclined a few degrees with respect to the horizontal plane, and which has, at one end, an elbow connector 4, which rotates connected to an open coupling gi 5 that connects it to a pressurized water pipe h. The coupling 5 is essentially formed by two portions that are mutually coupled to form a seal and that are free from each other, on a second axis v subst ancí alíñente vertical. The pipe 6 is anchored to a * ', po? I'll park you or a r < ? sador, not shown in the drawings, which rests on the floor »A nozzle 7 is mounted on the free end of the duct 3 and is provided with a mouth of a desired diameter with an opening of a diameter desired for produce a continuous stream G which is directed along the axis g of the conduit '! »A support arm 8 is mounted rotatably in the duct 3 so that it can oscillate towards a third e e ~ / < - \ ve is substantially horizontal and is at right angles to the first axis g of the conduit 3. Conveniently, the arm 8 can be formed by two side bars 8 ', ü "which are joined by an end plate. 9 flat subst anc alin.The arm length is such that the flat end plate 9 emerges beyond the nozzle 7 along the direction of the jet when the arm is substi- tially aligned with the conduit 1. Elastic return means, not most of the drawings and constructions, for example, of coil springs or suitable counterweights, are mounted on the pivotable axis h of the arm 8, these means tend to return to the arm upwards to which they are attached. This is substantially aligned with respect to the conduit 3. A baffle '10 is fi xed on the end plate 9 and the main part of the actuator 1. The position on the plate 9 is such that during the swinging movement of the arm 8 the baffle-10, this osciLa tr Ansversal mind with respect to the g axis of the jet between a position that is completely, Í? of its trajectory and a position in which I immerse you in the current «i a maximum point. During immersion, the baffle 10 conducts the field of the kinetic energy of the jet to convert it into propulsive energy for the irrigator. In accordance with the invention, that of the reader JO has a convex and curved main surface 11 which is suitable for penetrally "laterally within the jet while remaining substccly aligned with the body.Through its curved and convex shape, the surface behaves substantially as a wing section immersed in a flow stream and is a consequence subject of correct form to a negative pressure force produced by the flow dynamics Force acting on the principal surface 11 tends to return to the deflector 10 towards the interior of the jet. The main surface 11 is a cylindrical surface with a radius of curvature preferably constant and with an axis that is substantially constant at right angles to the e e of the jet.

Preferably, the radius of curvature of the main surface 11 is very wide, for example between 200 and 800 nm. It has been discovered that the performance of the deflector is optimal with a radius of curvature of approximately 500 nm, using a water jet at a pressure of 2 to 10 bar and with mouth diameters between 10 and 50 mm. 1L If a sectional view is made of the right surface of the cylindrical surface 11 along a plane that is at right angles to the axis of the surface, it is observed that it is in the form of a circular arc with a cord 1 having a predetermined length, which can advantageously be between 50 and 120 mm and is preferably close to 85. Cord 1 also forms an angle of average incidence with the axis g of the <; - hoi ro. According to the invention, the main surface 11 is d? Spuest < ? with respect to the jet so that when the latter barely touches «the deflector-, the surface is substantially alternating tangent to the current, with an angle of incidence or / that is minimum and practically equal to zero. Furthermore, since the baffle is driven into the jet, that is, upwards in FIGS. 3, 5 and (i), due to the negative pressure force generated by the flow dynamics, the angle of incidence of the Superie 11 increases gradually but is always relatively small. Referring to Figures 2, 3 and 4, the deflector 10 consists of an actuating part 12 having a relatively thin wall, for example with a maximum thickness of about 5 m and with an approximately trapezoidal flat shape; the actuator part 12 is arranged so that its axis coincides with the center line of the arm 8. The upper face «of the actuator part 12 has a shape similar to that of the main surface 11, while the -? is substanc? < ment e pl.ina and f > re fer i b 1 ement o est < The par-allele to the cord 1. According to the invention, the baffle 10 has a second surface, which is suitable to act with the jet, close to the maximum immersion position. Particularly, the secondary surface is constituted by the transverse edge 14 that this current The rim of the driving part 12, shown in broken lines in FIG. 2, which has a substantially flat shape and is steeply inclined with respect to the main surface 11. The solid angle β that lies between the two surfaces 11. and 14 is relatively long, for example between fi and 85 ° and preferably close to 75 °. The presence of this secondary surface 14 produces a local and very sharp change in the direction of the column « - flow, which nonetheless continues to join the curved main surface 11 due to the divider layer. While the angle of incidence increases, the divider layer becomes thinner and loses energy, until at a certain angle of critical incidence BC it breaks, creating a vortex downstream and allowing the separation of the flow column from the curved main surface 11, as shown schematically in Figure 7. It has been observed that for a deflector of the type shown in Figures 2, 3 and 4, the critical incidence angle orO is between ñ ° and 16 °, _! i- 0? you fon b 1 emente < .cry to the 12 This leads to a lepen ina fall in the (uoi a of |? i- (»on negative produced by the flow dynamics, combined with a downward reaction force applied by the jet on both the secondary surface 14 and on the surface of the plane 11. This produces rapid ejection of the jet 10 outside jet, as shown in FIG. f), causing an oscillatory movement of the arm 8 by virtue of the presence of the elastic return means or of optional counterweights.

Once it has started, the oscillating movement continues in the fixed state with a frequency, intensity and width depending on the relative angles of the main surface 11 with respect to the jet, on the diameter of the jet, on its pressure, on the force of the forces of return, and in the mom to < I inertia of the system. Optionally, and to adjust the angle of incidence of the main surface 11, it is possible to provide * screws 15 for adjusting the arm h-brackets. To promote the rotation of the duct in its vertical axis v it is possible to provide a redirector part, which is designed to laterally deflect the jet and is suitable for producing a tangent reaction force in the arm 8. This redirecting pair consists of of at least one curved face 15, which is formed in the baffle 10. In particular, a channel 16 can be formed in the Vospace on the end plate 9 of the arm and the lower face 13 of the laminar piece 12, the which is spaced and Slightly inclined with respect to the plate 9 by an angle x which measures between 0"and 10 °, preferably near the 5th The channel is laterally delimited by a wall of curved redirection 17, which is substanc Finally, the presence of a second side wall 17 'which is subst anc "parallel to the first wall 17 is • horizontal, since it is not normally to be fec? by the chorr-o, conveniently, the The initial wall L8 of the wall 17 is substantially parallel to the longitudinal direction of the arm and is thus aligned with the g axis of the jet, while the final portion 19 is reoriented later with respect to the inlet portion. . Advantageously, the redirection angle is between 20 ° and 50 °, preferably close to 35 ° redirection applied to the jet after passing through the (-anal 16 applies a voltage tension tangent to the arm, and this tension force is transferred to duct 3 through the oscillation axis H. Obviously, with a single channel of redistribution it is possible to impart a rotation to the duct 3, and thus <- the entire irrigation device, in a single direction towards the axis v. In the illustrated embodiment there are two adjacent r &g adjoining channels 16 and 20, which are substantially inent * Rich indexes with respect to the line of the biazo, Aligning a channel at a time with respect to the jet, by virtue of a displacement of corresponding s of the arm, it is possible to review the direction of rotation of the irrigator To facilitate the entry of the jet into the channels 16 and 20, the respective major edges 14 'and 14"have a" V "shaped arrangement with an internal angle that measures at 60 and 180 °, preferably at 100 ° C. In the second embodiment of the actuator according to the invention, shown in figures 9 to 14, the parts that are in common with the first embodiment are designated with the same reference numerals used in figures 1 to 0. A baffle-100 is mounted on the arm 8 and consists of an actuating part 101 having a shape as a wing section with curved surfaces 102 and 103 and a main boring 104 substance straight. - curved upper 102 corresponds to the main surface 11 and the lower surface 103 corresponds to the lower face 13 of the part 12 shown in figures L to 4. The surfaces 102 and 103 are arranged symmetrically with respect to a plane with the reference in figure 10, which is substantially parallel to the pivot axis h of the oscillating arm 8 and forms an angle of incidence x with respect to the axis g of the jet G to avoid instability of the actuator during < -u ignition and to give - to the arm 8 an initial impulse upwards or downwards.

The part 101 is also arranged so that when the arm 8 is in the stop position or initial condition, the chopper brushes tangentially on the supei (or 102 or 103 and forms a Lately small angle with respect to the plane of symmetry G. For small actuators, for example with jets having a diameter between 1.5 and 1 cm, the edge 104 of part 101 can be sharp, preferably for larger actuators. the incipient board 104 of the part 101 is formed by two secondary surfaces 105, 105 'which are formed respectively on the surfaces 102 and 103 and are ground to a relatively large angle (3 with respect to the plane of s? motp «; In this way, at a given critical incidence angle cc of the jet, the divider layer breaks and the negative pressure force produced by the flow dynamics acting on the car 102 falls off acute, causing a sudden reversal of the forces produced by the flow dynamics acting on the part 101. In practice, the part 101 is brought upwards, that is to say, towards the ee of the jet, due to the negative pressure on the surface 102, until it reaches the inclination cfc of its symmetry piano S, and is subsequently pushed downwards due to the pulse on the surface 102. In this way, the oscillation begins in any operating condition with a "gradually increasing width. The actuator part 101 is fixed to a support in the form of an "U" shape, particularly in the case of its parallel sides 10 and 108, the members are mutually connected by a transverse wall 109. The support 106 is rigidly anchored rotatably to the lateral bars 8 ', 8"of the oscillating arm ñ A redirecting part IOL is located between the sides 107 and 108 of the support 106, next to the transverse wall 109 This part consists of an anchor plate 111 which is substantially flat and rectangular and to which the redirector plate 112 is fixed, the plate 112 is thinner and narrower than the upper plate, and has walls. curved side plates 113 and 114, which are approximately symmetrical with respect to plane T which is substantially parallel to longitudinal axis g of line 3 and are at right angles to the symmetry plane. Plate 1L1 is inclined and converges to direction length of the -current with respect to the plane of symmetry S of part 101, to form an angle T with respect to part L01. To vary this angle, it is possible to provide two adjusting screws 115 and 116 arranged along the longitudinal plane T to rotate the plate 111 towards the pivot axis formed by the screws 117 and 118. Conveniently, the walls reaming rails 113 and 114 form two side channels together with the supepor plate 111, which are suitable for rediplying the jet with respect to the longitudinal axis g of the nozzle 7 later, with the rotation of the cassette 3 step by step. By moving the inclination of the br-azo 8 with respect to the duct 3, a channel, redirecting at one time is exposed, causing the lotation of the duct 3 towards the second axis v in one or the other direction. The lower face 120 of the plate 112 may be flat, which is struck by the jet when the deflector 1 lü moves downwards during the oscillation to give the deflector 100 an upward impulse, and may have a central cavity. ? 1 which is inclined by an angle 6 with respect to the angle of the plate 111, in order to reduce the interferential flow of the jet during the movement of the deflector-downwards. In this way, the amount of energy drawn from the «I read jet for a later L redirection is substantially unchanged, while the diameter and pressure of the jet increase» As an alternative, the lower face of the plate 112 may be formed by two symmetrical surfaces, a '; -which are inclined at an angle, which is equal to approximately 15 °, as shown by the dotted line in Figure 12, eliminating the central cavity 121. The summary, also in this embodiment, the ejector part 101 of the deflector- LOO is designed to drive and maintain - in a fixed state the oscillating movement of the arm 8 on its h axis, while the redirector part IOL is designed to apply a rotation movement step by step to the conduit with respect to the second axis of rotation ? bstancialmente vertical, to cover thus a circular region. He will be irrigated. The jet actuator in accordance with 1 «~? The invention is particularly effective and reliable even with small diameter jets and at relatively high pressures, and can also be applied to small irrigators. Neither actuator of the invention is susceptible to numerous modifications and variations, all of which may be affected. of the invention concept expressed by the "ns" eivi annexed indications All the details can be replaced with technical equivalents that are understood to be equally protected The materials, the forms and the dimensions can be any of the foprudad with the required ones. .

Claims (6)

1. M) NOVELTY OF THE INVENTION CLAIMS 1. - A pneumatic actuator, particulrmen to operate hydraulic systems such as revolving pulse p, which consists of: means (3, 7) for general- a jet in free form (0) of water prestir izada that e directed J rave of a Longitudinal ee (g); a baffle (10; 100) which can oscillate freely in a transverse direction between a position that is completely outside the choi ro and a position in which it is immersed in the jet at a maximum point, so as to drive part of the your energy; means (8) for supporting the deflector- (10; 100) for transferring the driven energy of the jet to the apparatus to be driven; the bristle furthermore because said baffle '(10; 100) has chicken minus a main surface (Ll »102) which has a curved and convex shape, and which is suitable for laterally entering the jet while being substi tionally maintained With the current, it thus generates a negative pressure force produced by the flow dynamics that has to return to the deflector inside the jet during the initial oscillation and during the operation in a fixed state.
2. 2. A jet actuator as claimed in claim 1, further characterized in that said curved main surface (11: 102) is appropriately cylindrical, with curvature (R) leg ie broadly and constantly- and with an axis that is subtankLine at right angles to the axis of the jet.
3. 3. A jet actuator according to claim 2, further characterized in that the right cross-section of said curved main surface (LL; 102) has a profile that has substantially the form of a «Circular direction in which a cord (1) or, respectively, an> The reference wave (), forms an average angle of incidence (ty) with respect to the e e (g) of the jet (G).
4. 4. A jet actuator according to claim 3, further characterized in that said curved main surface (11; 102) is provided to be substantially tangent to the current when < Ucho def reader (10; 100) barely rubs the jet.
5. 5. A jet actuator according to the rei indication 3, further characterized in that said cord (1), or said plane of symmetry (5) of said curved main surface (11; 102), are provided to form, during the unersion in the jet, an angle of incidence (a) that increases gradually and that is relatively small.
6. 6. A jet actuator according to the indication 5, further characterized in that said reader has a secondary surface (14; 105) which is suitable for interacting with the jet to produce, at an incidence value. critical (ac), separation and complete rupture of) 0 The flow of the current flows upward to the said curved main surface (11; 102), with a consequent drop in the negative pressure force produced by the dynamics of the current and a sharp inversion. the forces acting on the baffle (lü; 100). »A jet actuator according to claim 6, further characterized in that said angle of critical incidence (or) is between 6o and 16 °, preferably The rounder at 12o »8 .- A jet actuator according to claim 6, further characterized in that said secondary surface (14; 105) is substantially flat and shaped, with respect to said curved main surface, a solid angle (p) which is relatively long and which tends to generate a reaction force with a component that is opposite to the negative pressure force, produced by the flow dynamics, which acts on said pipelined surface. curved (11; 102). 9. A jet actuator according to claim 8, further characterized in that said solid angle (fl) is between 60 ° and 85 °., preferably close to 75 °. 10. A jet actuator according to claims 1 to 7, further characterized in that said means for generating a jet consist of a nozzle (7) which is located at the free end of a duct (3) or which is connected gi rablornente to a line (6) to supply presumed by means of a icoplarnient or (5) that gpa on a second eye subst ancí vertical vertical (v) in contiaste with the action of means of braking, fell apart also because said means (0) to support the deflector (10); 100) are mounted so that they can oscillate in said duct (3) to promote their rotation step by step towards said second substantially vertical axis (v). 11. A jet actuator in accordance with the -Revication 10, further characterized in that said support means consist of a br-azo (8, 8 '8") that is substi- tially rigid and that is pivoted towards said duct over -e a third axis (h) which is substcially horizontal » 12. - A belt driver according to claim 11, further characterized in that said reader dof (10; 100) consist of a driver part (12; 101) with a relatively thin torque-l << Which has a superior character (ll; 102) which has the form of said curved principal sui fi cation, a lower (13; 103) substantially flat or relatively curved substance, and a transverse main edge (14, 14 ', 14"; 105), 13.- A jet actuator according to claim 12, further characterized in that said actuating part (12) is anchored to a substantial end plate (9) in the form of a jet actuator. flat, which is rigidly coupled to said arm (8), said lower car (13) being slightly, > 4 . paced and inclined with respect to the extreme plate (9) of the arm by an angle (r) measuring ent i e 0o and i () °, preferably close to 5o. 14. A jet actuator according to claim (12), further characterized by a "deflector" (LO) having means of redirecting part (16, 20; 112, 113, 114) that are suitable for causing lateral redirection of the jet, with a consequent tangent reaction force, to thereby promote the rotation of the conduit (3) on said second substantially vertical axis (v). 15. - A jet actuator according to claim 14, further characterized in that dich.i par-te redi rector (16, 20) consists of at least one curved channel (16) which is between said end plate (9) of the arm, said actuator part (12), and at least one curved recessed redire wall (17) that is substi- tially perpendicular to said part (12), said redirector wall has an initial portion (18) which it is substi tially for the length of the arm and a final portion (19) that is reoriented laterally with respect to the portion of in < "16.- A jet actuator according to claim 15, further characterized in that it consists of two redirecting channels (16, 20), which are adjacent and substantially symmetrical with respect to the center line of said arm ( 8) and can be selectively aligned with the pair to cause the movement of the conduit in one of the two directions of rotation 17. A choke actuator according to claim 16, further characterized by the leading edge. (14 ', 14") of said laminar portion in said two redirector channels has a" V "shaped filament shape, with an internal angle that measures between 60 and 180 °, preferably close to the LOOs." 18.- An air jet actuator with 1"\ claim 12, further characterized in that said driving actuator (101) is substantially in the form of a wing section with upper and lower surfaces (102, 103), which are substantially symmetric with r- I mirror a plane of symmetry () that corresponds-? said reference plane forming an angle of variable incidence (or) with respect to the axis of the jet (g) and with a main edge (105) forming said secondary surface. 19. A jet actuator according to claim 18, further characterized in that said redirecting portion (110) consists of a substantially flat anchor plate (111) under which a redirecting plate (112) is fi xed. said rectangular plate has at least one curved lateral recess surface (113, 114) which forms at least one redirecting channel with said anchoring plate (111). 20.- A jet actuator. in accordance with 2 b ivpidi cacion 19, also characterized because that part? "I" (101) and said icxlirectoi part (110) are kept in position in r-e the lateral arms (107, 108) of a support (106) Substantially in the form of a "U", which is rotatably anchored to the end of said arm (8, 8 ', ü "). 21.- An actuator of chorro of conformability with the claims 15 or 20, further characterized in that the angle of lateral wind (6) of said surface i edireet or < \ vaveada (17; 113, 114) measures between 20 ° and 50 °, preferably close to 35 ° 22. - A jet! - Jet according to claim 6, further characterized in that it has means (15; 115, 116) for adjusting the position and angles of incidence of said main surface and said secondary super L with r- 23.- A jet actuator according to claim 1, further characterized in that it consists of braking means associated with a coupling (109) for braking. - the rotation of said duct in said verical axis, said braking means are selectively one direction s.