RU204567U1 - Finned propulsion and steering device with hydrogenerator - Google Patents

Abstract

Fin propelling and steering device, operating on the principle of an oscillating wing, with the possibility of using it as a hydrogenerator, containing: one (or more) a pair of fins (wings) vertically immersed in water, reciprocating in antiphase perpendicular to the diametrical plane (DP) of the vessel and at the same time changing the installation angles in relation to the centreline plane (DP) of the vessel; mechanical suspension of each fin, allowing the fin to move and rotate; an electric motor with the ability to control the speed of rotation, which is also capable of performing the function of an electric generator; flywheel; battery of electricity; a mechanical transmission containing: a fins movement (positioning) unit, a synchronization and phase shift unit, a fins rotation angle control unit, including: a fins rotation unit, blocks for setting the average angular positions of the fins, multipliers of the fins rotation angles.

Description

Technology area

The utility model relates to shipbuilding, namely to propulsion and steering devices with oscillatory motion, as well as hydraulic units with electric generators immersed in water. As a propulsion and steering device, the utility model can be used on ships of any type, and as a propulsion and steering device and a hydrogenerator, mainly on sailing ships.

State of the art

Known methods of creating in a fluid a driving force of an apparatus equipped with at least one wing (fin), which consist in the fact that the wing is simultaneously given a reciprocating movement in the direction perpendicular to the incoming fluid flow, and angular movement. (No. US 5401196 A, class B63H 1/36 or No. RU 2172700 C2 class B63H 1/00 (2000.01), B63H 1/36 (2000.01)).

Known devices for the implementation of these methods of movement, in which the parameters of the wing (wings) are determined mainly by the design, and the ability to change the parameters during operation is available only to a limited extent, as a result of which the optimal mode of operation of the device is not ensured in the entire range of speeds of the vessel. For example, it is only possible to change the frequency of translational and angular oscillations of the wing to ensure a suitable operating mode of the wing in terms of the angle of attack and to change the magnitude of the thrust force. (No. RU 2482012 C2, class В63Н 1/36 (2006.01)).

Known fin propulsion and steering devices (complexes), in which for maneuvering is used to turn the device relative to the ship's hull. (No. SU 1143646 А, class В63Н 1/36 (2000.01) В63Н 23/04 (2000.01) В63Н 23/08 (2000.01), № SU 1245501 А1, class В63Н 1/36 (2000.01) В63Н 23/04 (2000.01) ) B63H 23/08 (2000.01) B63H 23/10 (2000.01), No. US 6877692 B2, class B63H 1/36, F42B 10/64, No. EP 1970302 A1, class B63H 1/32, B63H 25/52) ...

It is known that the fin propeller can be used for maneuvering, that is, to change the direction and speed of the ship, including for braking and reverse, and without changing the direction of rotation of the propeller drive and without turning the device relative to the ship's hull, but only by changing the parameters of the wings (No. US 5401196 A, class B63H 1/36) / (Journal of Fluids and Structures 17 (2003) 163-183 Forces on oscillating foils for propulsion and maneuvering DA Read, FS Hover, MS Triantafyllou).

Known fin propeller-steering devices (complexes), in which for maneuvering, as well as to ensure the optimal operation of the device, it is proposed to use a change in the parameters of the movement of the wings, namely:

changing the frequency of translational and angular oscillations of the wings to control the speed of the vessel;

changing the amplitude of the translational motion of the wings to control the speed of the vessel;

changing the direction and magnitude of the phase shift between the translational and angular motion of the wings to control the speed and reverse the movement of the vessel;

changing the amplitude of angular oscillations of the wings to control the speed of the vessel;

changing the average position of angular oscillations of the wings to control the direction of movement of the vessel.

Such technical solutions are reflected in patents such as: No. SU 1143646 A, class. V63N 1/36 (2000.01) V63N 23/04 (2000.01) V63N 23/08 (2000.01), No. SU 1245501 A1, cl. В63Н 1/36 (2000.01) В63Н 23/04 (2000.01) В63Н 23/08 (2000.01) В63Н 23/10 (2000.01), No. EP 1970302 A1, cl. B63H 1/32, B63H 25/52, No. US 5401196 A, class. B63N 1/36.

It is known to use a device with a pair of oscillating wings as a hydrogenerator for generating electricity from a stream of water. The principle of operation of this device is that the wings are given such an angular position in which they reciprocate under the action of the incoming water flow in the direction perpendicular to the flow. Thus, the hydrogenerator works according to the principle opposite to that of the fin propulsion system. In this case, the range of change in the angular position of the hydrogenerator wings is significantly different from the range of change in the angular position of the fin propeller wings. For the efficient operation of the hydrogenerator, it is also necessary to adjust the parameters of the wings' movement depending on the speed of the incoming flow, in particular, the change in the amplitude of the angular oscillations of the wings. (27th IAHR Symposium on Hydraulic Machinery and Systems (IAHR 2014) Development of a twin-flapping-foils unit to generate hydroelectric power from a water current H Abiru, A Yoshitake and M Nishi).

The closest analogue of the patentable solution, which was chosen for the prototype, is the device declared in patent for invention No. US 5401196 A, class. B63N 1/36.

The disadvantage of the known devices is the complexity of the design due to the need to use electric, hydraulic or pneumatic actuators to change the parameters of the movement of the wings (fins), which often must be located on the moving or rotating parts of the drive.

Technical challenge. The objective of this utility model is to develop a device of a simpler and more reliable design that combines the functions of a propulsion-steering device and a hydro-generator.

This problem is solved by developing the design of a device that includes a mechanical transmission, which makes it possible to control the parameters of the movement of the fins during the operation of the device within the limits necessary for the optimal performance of the declared functions over the entire range of operating speeds of the incoming flow, and without the use of actuators other than mechanical, or located on rotating parts of the drive.

Technical result

The technical result of the proposed utility model is a device that performs the functions of a propulsion and steering device and a hydrogenerator as efficiently as two separate devices, each performing its own function, and a simplification and increased reliability of the propulsion and steering device is achieved in comparison with existing analogues.

The essence of the utility model. A fin propeller-steering device, operating on the principle of an oscillating wing, with the possibility of using it as a hydrogenerator, containing:

one (or more) a pair of fins (wings) (10) vertically submerged in water, reciprocating in antiphase perpendicular to the centreline plane (DP) of the vessel and at the same time changing the angles of installation in relation to the centreline plane (DP) of the vessel;

mechanical suspension (9) of each fin, providing the fin with the possibility of translational movement and rotation;

an electric motor (1) with the ability to regulate the speed of rotation, capable of also performing the function of an electric generator;

flywheel (11);

electric power accumulator (2);

mechanical transmission containing:

fins movement (positioning) block (3);

synchronization and phase shift unit (4);

fins angle control unit (5), including:

fins turning unit (6);

blocks for setting the average angular positions of the fins (7);

fin angle multipliers (8).

The mechanical transmission, which is part of the proposed device, and transmits movement when operating in the propulsion and steering mode from the electric motor to the fins, and in the hydrogenerator mode from the fins to the electric generator, allows you to change the following parameters of the movement of the fins:

the frequency of translational and angular vibrations of the fins;

average angular positions of the fins in relation to the ship's DP;

the amplitude and phase of the deviation of the fins from the middle positions; with the aim of:

changes in the magnitude and direction of the hydrodynamic thrust force generated when operating in the propulsion and steering mode;

realizing the possibility of operating the device in the hydrogenerator mode and regulating the power obtained in this mode, as well as changing the magnitude and direction of the hydrodynamic force of the hydrogenerator's resistance to the movement of the vessel.

The specified control of the parameters of the movement of the fins is performed by means of:

regulation of the speed of rotation of the electric motor;

setting the average angular positions of the fins;

setting the sign (direction) and the magnitude of the phase shift between the translational and angular movements of the fins.

This control of the parameters of the movement of the fins allows the vessel to fully move and maneuver, as well as, when moving in a different way, for example, under sails, to extract energy from the oncoming flow, while retaining the ability, to a limited extent, to control the course of the vessel.

Synchronized crank mechanisms are used to convert the rotational motion of the fins into reciprocating and vice versa, and to swing the fins along the angle of rotation, synchronized crank mechanisms are used, and the transmission design allows you to set a phase shift in the angle of rotation between the indicated crank mechanisms, due to which the amplitude and phase of deviation of the fins from their average changes provisions. Since the amplitude of the oscillation of the fins, obtained due to the phase shift between the crank mechanisms, is insufficient for all operating modes of the device, a mechanism is used to increase it - the wing rotation multiplier.

Synchronization and introduction of a phase shift, as well as an increase in the amplitude of oscillation of the fins, is performed using bevel planetary gears that are part of the corresponding transmission units.

EFFECT: simplification and increased reliability of the propulsion-steering device in comparison with existing analogues, as well as the combination and effective performance of the functions of the propulsion-steering device and hydrogenerator.

Brief description of the drawings.

FIG. 1 shows a functional diagram of a fin propulsion and steering device, a hydrogenerator. The diagram shows the following functional blocks:

an electric motor (1) with the ability to regulate the speed of rotation, capable of also performing the function of an electric generator;

flywheel (11);

electric power accumulator (2);

mechanical transmission containing:

fins movement (positioning) block (3),

synchronization and phase shift unit (4),

fins angle control unit (5) including:

fins turning unit (6),

blocks for setting the average angular positions of the fins (7),

fin angle multipliers (8);

mechanical suspension (9) of each fin, providing the fin with the possibility of translational movement and rotation;

a pair of fins (wings) (10) vertically submerged in water, reciprocating in antiphase perpendicular to the centreline plane (DP) of the vessel and simultaneously changing the angles of installation in relation to the centreline plane (DP) of the vessel;

FIG. 2 is a diagram explaining the formation of the fin movement by means of synchronous rotation of two crank mechanisms with an angular shift relative to each other.

FIG. 3 shows a kinematic diagram of the block of movement (positioning) of the fins, the block of rotation of the fins, for two embodiments of the movement, where the differences between option 2 and option 1 are that the shafts of the cranks of the power gearboxes (23) and (42) are located on the same geometric vertical axis ...

FIG. 4 shows a kinematic diagram of the mechanical suspension of the fin, as part of the crank mechanism for the device according to claim 2.

FIG. 5 shows a kinematic diagram of the mechanical suspension of the fin, as part of the crank-slider mechanism for the device according to claim 3.

FIG. 6 shows a detailed kinematic diagram of the synchronization and phase shift unit.

FIG. 7 shows a detailed kinematic diagram of the fin angle multiplier.

FIG. 8 schematically shows a general view of the device from above.

FIG. 9 is a schematic side view of the device.

FIG. 10 schematically shows a general view of the device from the back.

Implementation of the utility model. The fin propeller-steering device, with the possibility of using it as a hydrogenerator (Fig. 1, 3, 4), contains at least a pair of fins (wings) (10) vertically immersed in water, installed in bushings (65) on mechanical suspensions (9) with the possibility of reciprocating movement around the vertical axis (66).

Mechanical suspensions (9) are fixed on the chassis (99) of the device with the possibility of reciprocating movement, while the possibility of movement can be carried out both in the horizontal plane around the axes (68), hereinafter referred to as option 1, and with the possibility of reciprocating - translational motion along horizontal guides (90), hereinafter referred to as option 2.

On the housings (60) of the mechanical suspensions (9), the axles (64) of the connecting rods (26), (27) of the movement (positioning) unit (3) are installed, by means of which the suspensions are set in motion.

The connecting rods (26), (27) by means of hinged joints are connected to the cranks (24), (25) of the same block mounted on the output shaft of the power gearbox (23), the input shaft of which is connected through the shaft extension (22) to the shaft of the power take-off gearbox (21). A flywheel (11) and a coupling (20) are installed on the shaft of the power take-off gearbox (21) for connection to an electric motor / generator (1) fixed to the chassis (99).

The indicated gearboxes (21), (23) and the shaft extension (22) are located in the housing (28) of the movement (positioning) unit (3), which is also fixed to the chassis (99). The output shaft of the power take-off gearbox (21) is connected to the input shaft of the synchronization and phase shift unit (4) located in the housing (39). For manual adjustment of the phase shift, the unit is equipped with a handwheel (38). The device of the block is described below when describing the principle of its operation. The output shaft of the synchronization and phase shift unit (4) is connected to the input shaft of the gearbox (40) of the fins turning unit (6) and then through the shaft extension (41) with the power gearbox (42) of the same unit, on the output shaft of which the cranks (43 ), (44).

The gear ratio of the power gearbox (42) must be equal to the gear ratio of a similar gearbox (23) of the motion block, so that the cranks of these blocks rotate at the same speed. These cranks by means of articulated joints and connecting rods (45), (46) are connected to the levers (80), (80 ') (Figs. 1, 4) of the multipliers of the angles of rotation (8) of the fins located on the suspensions (9). The device of the steering angle multiplier is discussed below when describing the principle of its operation. The input shaft of each multiplier is connected to the unit for setting the average angular position (7) of the fin, the output shaft is connected to the axis (66) of the fin (10) and gives the fin a reciprocating motion.

According to option 2, these connections are carried out by means of couplings, since the block for setting the average angular position (7) of the fin is on the suspension (9) and its geometric axis coincides with the axis of the multiplier (8) and the axis (66) of the fin (10).

According to option 1, the block for setting the average angular position (7) of the fin is mounted on the chassis (99), therefore it is connected to the input shaft of the multiplier by means of gearboxes (61), (63) connected by a shaft extension (62). The output shaft of the multiplier is connected to the axis (66) of the fin (10) by means of a cardan joint (67).

Since for all fins, in the general case, the same average angular positions should be set, all blocks for setting the average angular positions of the fins should be synchronized, for example, they can be connected by means of shafts (52), (53), schematically shown in Fig. 3, with a general mechanism (50) equipped with a handwheel (51) for manually setting the overall average angular position of the fins in relation to the ship's DP.

The synchronization and phase shift unit (4) (Figs. 1, 6) is designed to synchronize the rotational movement of the fins movement (positioning) unit (3) and the fins rotation unit (6) and to introduce an angular phase shift.

The unit is a planetary bevel gearbox, in which the input (30) and output (34) shafts are located along the same geometric axis, and the satellite shaft (32) is in a plane perpendicular to this axis and can change its angular position.

It is possible to fix the position of the satellite axis (32) at a certain angle to the ship's DP, while the input shaft (30), gear (31) and output gear (33), shaft (34) will rotate in opposite directions with the same angular velocities. A change in the angular position of the satellite axis with respect to the ship's DP makes it possible to introduce a phase shift in the angular position of the output shaft (34) relative to the angular position of the input shaft (30), of different magnitude and sign, while the output shaft will advance or lag behind in rotation from the input shaft by an angle , twice the angle of installation of the satellite axis (32).

The input shaft of the synchronization unit is kinematically connected to the crank shaft of the fins movement (positioning) unit (3), the output shaft is kinematically connected to the crank shaft of the fins rotation unit (6), thus the phase shift of the angular position of the cranks of these blocks can be controlled using the synchronization and phase shift (4).

The setting of the angular position of the satellite axis (32) in relation to the DP of the ship can be performed, for example, manually, by means of a handwheel (38) mounted on the worm shaft (37) of a reducer, the worm wheel (36) of which is connected to the planetary carrier (35).

The rotation angle multiplier (8) (Figs. 1, 7) of each fin is a bevel planetary gearbox, the input shaft (87) of which is kinematically connected to the unit for setting the average angular position of the fin (7):

for option 2 - by means of a coupling, since the geometrical axes of the shafts coincide;

for option 1 - by means of two bevel gearboxes (61), (63), interconnected through a shaft extension (62).

Thus, the average angular position of the input shaft (87) of the multiplier is determined by the block for setting the average angular position of the fin (7). The output shaft (86) of the multiplier is connected to the shaft (66) of the fin (10):

for option 2 - by means of a coupling, since the geometrical axes of the shafts coincide;

for option 1 - using the cardan shaft (67).

The carrier (85) of the satellite (32) of the multiplier, mounted in bearings on the housing (60) of the mechanical suspension (9) of the fin, has a lever (80) pivotally connected to the connecting rod (45), (46) of the fin turning unit (6). During synchronous rotation with a phase shift of the cranks of the fin movement (positioning) unit and the fin rotation unit, this lever, together with the carrier and the satellite, makes a reciprocating movement, the swinging amplitude of which depends on the phase shift of the crank rotation. As a result of this movement, the satellite (32), rotating, sums up the angle of installation of the input gear (83) with the doubled angle of deflection of the lever (80) and transmits the rotation to the output gear (81).

Thus, the output shaft (86) of the multiplier performs a reciprocating motion with an amplitude twice the amplitude of the lever (80) movement, and the average angular position of the output shaft (86) of the multiplier is also determined by the unit for setting the average angular position of the fin (7).

Since the output shaft (86) of the multiplier is kinematically connected to the axis of the fin (66), the fin (10) also performs a reciprocating motion with an amplitude twice the amplitude of the analogous movement of the lever (80) of the multiplier, and the average angular position of the fin (10) is determined block for setting the average angular position of this fin (7).

Doubling the amplitude of the reciprocating rocking motion of the fins ensures the efficient operation of the propulsion unit in the absence and low speed of the vessel's movement, and also ensures the operation of the hydrogenerator in the optimal mode.

In the mode of operation as a propulsion-steering device, the rotary movement from the power drive is converted into a reciprocating movement of the fins with their simultaneous reciprocating movement relative to their axes, with the ability to control the parameters of the movement of the fins.

To form a complex movement of the fin, synchronous rotation of two crank mechanisms with an angular shift relative to each other is used, which is illustrated in FIG. 2., where, for ease of understanding, the rotation of the crank (46) of the fin rotation unit in the same direction is shown with the rotation of the crank (27) of the movement (positioning) of the fin, the suspension (9) of the fin (10) moves (90) along rectilinear guides , as stated in the device according to option 2, the swing arm (80), in length equal to the radius (R) of the cranks, is fixed directly on the axis (66) of the fin, i.e. the rotation angle multiplier is not used in the scheme.

Under these conditions, if during rotation the phase shift angle (47) between the cranks is zero, then the geometric axis of the connecting rod on the steering arm (80) coincides with the axis of the connecting rod (64) on the suspension, and during the entire cycle the angular position (92) of the fin will remain zero, the fin will move along with the suspension, remaining motionless relative to it.

If you set the phase shift angle (47) between the cranks not equal to zero (but less than the maximum allowable), then simultaneously with the translational movement together with the suspension (9), the fin (10) will oscillate about its axis (66), and the range of angle change the deflections (91) of the fin for the rotation cycle of the cranks will be the greater, the greater the angle of phase shift (47) between the cranks, while the span (S) of the translational movement of the fin remains constant (S = 2R). At any permissible angle between the cranks, the minimum angular deviations of the fin will be near the extreme positions, and the maximum near the middle positions of the suspension movement.

When the direction of rotation or the order of the cranks is changed, the movement of the fin will occur in a different phase: the leading edge of the profile forward, or the trailing edge of the profile forward. The latter changes the direction of thrust to the opposite and can be used for braking and reverse.

The mode of operation as a propulsion-steering device is explained using the kinematic diagrams shown in FIG. 1, 3, 4.

The torque from the motor shaft (1) through the coupling (20) is transmitted to the movement (positioning) unit (3), namely, to the power take-off gearbox shaft (21) with the flywheel (11) mounted on it, and then through the shaft extension (22) onto the shaft of the reduction gear (23) of the same block. Cranks (24), (25) are installed on the power shaft of this gearbox, which, while rotating, set in motion the connecting rods (26), (27), acting on the axles of the connecting rods (64) on the mechanical suspension of the fins (9) (Fig. 4).

Mechanical suspension fins (9) move together with the bushings (65) of the axes of the fin located on them, thus, the fins (10) perform a reciprocating plane-parallel movement, almost mirror-symmetric relative to the ship's DP.

From the other shaft of the power take-off gearbox (21), rotation is transmitted to the input shaft (30) (Fig. 6) of the synchronization and phase shift unit (4), which is a bevel planetary gearbox, then through the drive gear (31), the satellite (32) and driven gear (33) to its output shaft (34), which rotates in the opposite direction and with a phase shift in the angle of rotation relative to the input shaft.

The magnitude and direction (sign) of the phase shift is determined by the angular position of the satellite shaft (32), it is set by means of a worm pair, the worm wheel (36) of which is connected to the planet carrier (35), and the worm (37) rotates in the bearings of the housing (39) of the block ... The phase shift is changed by rotating the handwheel (38) mounted on the worm shaft (37).

From the output shaft (34) of the synchronization and phase shift unit (4), rotation is transmitted to the input shaft of the fins turning unit (6) (Fig. 3), then through the bevel gearbox (40) and the shaft extension (41) to the shaft of the reduction gearbox (42 ) of the same block. Cranks (43), (44) are installed on the power shaft of this gearbox, which, through the connecting rods (45), (46) by means of hinged joints, drive the levers (80) (Fig. 4) attached to the carriers (85) of the satellites (82) multipliers of angles of rotation (8) of fins installed in bearings on mechanical suspensions (9).

During synchronous rotation with a phase shift of the cranks of the fin movement (positioning) unit and the fin rotation unit, these levers, together with the carriers and satellites, perform reciprocating movements, the swinging amplitudes of which depend on the phase shift of the rotation of the cranks. In this case, the output shafts of the multipliers of the angles of rotation (8) of the fins perform reciprocating movements of double amplitude, which are transmitted to the fins (10) by means of couplings or propeller shafts (67).

The input shafts of the multipliers of the angles of rotation (8) of the fins are kinematically connected with the blocks for setting the average angular positions (7) of the fins, therefore, the average angular positions of the output shafts of the multipliers and the average angular positions of the fins themselves can be changed by setting the average angular position by rotating the handwheel (51).

Thus, as a result of the synchronous rotation of the crank mechanisms of the fins movement unit and the fins rotation unit with an angular shift relative to each other, the fins perform a reciprocating movement due to the movement of their mechanical suspensions, and a reciprocating movement around their axes.

Adjusting the speed of the electric motor (1) allows you to change the frequency of oscillation of the fins. The amplitude and phase of the reciprocating movement of the fins is set in the synchronization and phase shift unit (4), and the average angular position of the fins is determined by the units for setting the average angular position (7). These changes in the parameters of the movement of the fins make it possible to change the magnitude and direction of the hydrodynamic thrust force generated when operating in the mode of the propulsion and steering device.

In the mode of operation as a hydrogenerator, the reciprocating movement of the fins (10) under the action of the incoming flow is converted into the rotational movement of the electric generator (1) and the flywheel (11) with the simultaneous provision of the reciprocating movement of the fins relative to their axes, which is necessary to maintain the reciprocating movement under the action of the incoming flow, with the ability to control the parameters of the movement of the fins.

In the initial position of the device, the average angular position adjuster (51) of the fins and the phase shift angle adjuster (38) are set to zero position, the mechanical suspensions (9) of the fins are in their middle positions, the fins (10) of the device are also in their middle positions, both in movement and in the angles of installation.

In this position, the fins are symmetrically flown around the counter flow, creating minimal resistance to the movement of the vessel.

When the phase shift angle is set to a sufficient value, the fins (10) change their angular positions so that under the action of the incoming flow, at a sufficient velocity, hydrodynamic forces arise on them, which bring the fins together with their suspensions into translational motion. This movement, through the connecting rods (26), (27), which by means of articulated joints connect the mechanical suspension (9) of the wings with the cranks (24), (25), leads to the appearance of a movement (positioning) unit on the shaft of the power reducer (23) (3 ) torque, which in turn drives the rest of the device mechanism, namely:

The rotation accelerated by the gearbox (23) through the shaft extension (22) is transmitted to the power take-off gearbox shaft (21) with the flywheel (11) mounted on it and then through the coupling (20) is transmitted to the generator shaft (1), which leads to the generation of electricity ...

From the other shaft of the power take-off gearbox (21), rotation is transmitted to the input shaft (30) of the synchronization and phase shift unit (4) and further, in the same way as it happens in the mode of operation of the device as a propulsion and steering device.

From the output shaft (34) of the synchronization and phase shift unit (4), rotation is transmitted to the input shaft of the fins turning unit (6), then through the bevel gearbox (40) and the shaft extension (41) to the shaft of the reduction gearbox (42) of the same unit.

The cranks (43), (44) are installed on the power shaft of this gearbox, which, through the connecting rods (45), (46) by means of hinged joints, set in motion the levers (80) attached to the carriers (85) of the satellites (82) of the rotation angle multipliers (8 ) fins mounted in bearings on housings (60) of mechanical suspensions (9). These levers, together with the carriers and satellites, perform reciprocating movements, while the output shafts of the angles of rotation multipliers (8) of the fins perform reciprocating movements of double amplitude, which are transferred to the fins (10) by means of couplings or propeller shafts (67). Thus, when the fins move under the action of the incoming flow, their angular position also changes.

When the fins move from one extreme position to another, when the angles of deflection of the fins and transverse hydrodynamic forces are large, the energy of movement is accumulated by the flywheel (11). In the future, the energy stored by the flywheel is used for the passage of the fins (10) around the extreme positions (dead points) and for changing the angular positions of the fins to opposite ones near the extreme positions.

As a result of changing the angular positions of the fins to the opposite, the cycle of movement of the fins is repeated, which leads to a stable movement of the entire mechanism of the device and the generation of electricity.

Regulation of the amplitude and phase of the reciprocating rocking movement of the fins by means of the synchronization and phase shift unit, as well as doubling the amplitude of this movement by means of multipliers of the angles of rotation of the fins, ensures efficient operation of the device in the hydrogenerator mode.

During the operation of the device in this mode, it is also possible to change the average angular positions of the fins in a range that does not prevent the device from performing the function of generating electricity, which can be used to change the direction of action of the hydrodynamic drag force of the hydrogenerator in order to control the movement of the vessel in the direction. Thus, it is possible, to a limited extent, to combine the functions of the hydrogenerator and the steering device.

Claims (5)

1. A fin propulsion and steering device, with the possibility of being used as a hydrogenerator, comprising: a pair of fins substantially vertically submerged in water, reciprocating substantially in antiphase reciprocating motion essentially perpendicular to the centreline plane of the vessel and simultaneously changing the installation angles with respect to the diametrical the plane of the vessel; mechanical suspension of each fin, allowing the fin to move and rotate; an electric motor with the ability to control the speed of rotation, which is also capable of performing the function of an electric generator; flywheel; battery of electricity; a mechanical transmission that transmits movement when operating in the propulsion-steering device mode from the electric motor to the fins, and in the hydrogenerator mode from the fins to the electric generator, containing: a fins positioning unit, a synchronization and phase shift unit, a fins rotation angle control unit, including: a rotation unit fins, blocks for setting the average angular positions of the fins, multipliers of the angles of rotation of the fins, and the said block for positioning the fins and the block for turning the fins contain crank mechanisms, and the block for synchronization and phase shift, as well as the blocks of multipliers for the angles of rotation of the fins, contain bevel planetary gears; allowing during the operation of the device to change the following parameters of the movement of the fins: the frequency of translational and angular vibrations of the fins; average angular positions of the fins in relation to the centreline of the vessel; the amplitude and phase of the deviation of the fins from the middle positions; with the purpose of: changing the magnitude and direction of the hydrodynamic thrust force generated when operating in the propulsion and steering device mode; realizing the possibility of operating the device in the hydrogenerator mode and regulating the power obtained in this mode, as well as changing the magnitude and direction of the hydrodynamic force of the hydrogenerator's resistance to the movement of the vessel; moreover, the specified change in the parameters of movement of the fins is performed by: regulating the speed of rotation of the electric motor; setting the direction and magnitude of the phase shift between the translational and angular movement of the fins; setting the average angular positions of the fins. 2. The fin propulsion and steering device according to claim 1, in which the mechanical fin suspension together with the positioning unit is a crank mechanism, and the mechanical fin suspension is a lever swinging substantially in a horizontal plane relative to an axis located at its beginning and fixed to the chassis of the device, while the fin axis bushing is located at the end of the lever; between the beginning and the end of the lever are the connecting rod axis of the fin positioning unit and the fin rotation angle multiplier; moreover, the multiplier of the angle of rotation of the fin is located on the same geometric axis with the axis of the connecting rod, while the unit for setting the average angular position of the fin is located on the chassis of the device, along the geometric axis of the swing of the lever; since the block for setting the average angular position of the fin, the multiplier of the angle of rotation of the fin and the axis of the fin are not located along the same geometric axis, the rotational movement between them is transmitted using additional shafts and articulated joints, for example, cardan joints. 3. The fin propulsion and steering device according to claim 1, in which the mechanical suspension of the fin together with the positioning unit is a crank-slider mechanism, and the mechanical suspension of the fin is a carriage that reciprocates along essentially horizontal guides; while on the specified carriage are located: the axis of the connecting rod of the movement block, the bushing of the axis of the fin, the multiplier of the angle of rotation of the fin, the device for setting the average angular position of the fin; moreover, the device for setting the average angular position of the fin, the multiplier of the angle of rotation of the fin and the axis of the fin are on the same geometric axis, which simplifies the transfer of rotational motion between them. 4. The fin propulsion and steering device according to claim 1, in which, when operating in the hydrogenerator mode, the flywheel is used to accumulate the energy of movement of the fins under the action of the incident flow from one extreme position to another, and the passage of the fins of intervals near the extreme positions and the change in the angular positions of the fins by the opposite ones near the end positions are carried out by means of the energy stored by the flywheel. 5. The fin propulsion and steering device according to claim 1, in which, when operating in the hydrogenerator mode, the change in the average angular positions of the fins in a range that does not prevent the device from performing the function of generating electricity is used to change the direction of action of the hydrodynamic drag force of the hydrogenerator in order to control the movement of the vessel along direction, thus, the functions of the hydrogenerator and the steering device are combined.

Images