KR20210114032A - seaplane - Google Patents

Abstract

The present invention relates to a floatplane, in particular a swimming and/or diving aid having a hull (10) having a stern (12) and a bow (11), wherein two flow channels (27) are provided in said hull (10) or It is provided on the hull 10 , said flow channels extending from a water inlet 22 to a water outlet 24 , and a water accelerator 52 , in particular a propeller or a propelling screw, is connected to the two flow channels 27 . ), each water accelerator 52 is driven by a motor 50 , and handles 31 , which can be held firmly by the user, are provided between the bow 11 and the stern 12 . Arranged in the midship region or in the bow region, a support surface 40 is provided adjacent to the handles 31 in the direction of the stern 12 , on which the user at least partially at least one water-sliding surface ( 14, 15) are arranged. In order to realize a low flow resistance having a compact structure in such a receiver, flow channels 27 are provided to extend at least partially in the area of the bulges according to the present invention.

Description

seaplane

The present invention relates to a floatplane, in particular a swimming and/or diving aid having a hull having a stern and a bow, wherein two flow channels are provided in or on the hull and these flow channels extend from the water inlet to the water outlet. A water accelerator, in particular a propeller or propulsion screw, is arranged in each of the two flow channels, each water accelerator being driven by a motor, and a user gripping handle is provided in the midship area between the bow and the stern. two spaced bulges extending in the longitudinal direction of the hull, arranged at or in the bow area, wherein a supporting surface is provided adjacent the handles in the aft direction, on which the user can rest at least partially; are provided on the underside of the hull, between which at least one water sliding surface is arranged.

These water planes are used for recreational or sports equipment, rescue equipment and professional use. The receiver can be used to pull the user across the water surface. At the same time, the receiver can be switched from surface movement to underwater movement. In particular, the seaplane may be used for longer submerged movements.

US 2001/0025594 A1 discloses a seaplane provided with a hull with transversely projecting wings. The hull has a support surface on which the upper body of the user can rest. Similar to a motorcycle, the receiver has a handlebar. The handlebar has two handles. The user can hold them firmly. Two flow channels are additionally provided in the hull, wherein impellers are provided inside the flow channels. The impellers are arranged on a shaft and can be driven by an electric motor. The receiver has spaced apart projections on its underside. This well-known seaplane is difficult to handle due to its relatively large footprint. In particular, it cannot be used for water movements that require turns along tight curve radii. In addition, the clear height of the receiver is large, ie it has a relatively high flow resistance.

Such a receiver is known, for example, from DE 35 23 758 A1. Similar to a biplane, this seaplane has two wings that are spaced apart. Flow channels are formed between these two wings. Motors are arranged in the flow channels to drive one propeller each. Also, handles are provided between the wings. These handles can be used to individually control the motors.

FR 2 915 172 discloses another receiver with two flow channels and associated engines.

SUMMARY OF THE INVENTION The present invention solves the problem of providing a receiver of the type initially mentioned, which has a compact structure conducive to a relatively low flow resistance and is easy to handle conducive to a quick drive style.

This problem is solved by flow channels extending at least partially in the bulge region.

According to the invention, the flow channels are integrated in the area of the bulges in a space-saving manner, significantly reducing the overall height of the receiver compared to known receivers. This reduces the flow resistance. As a result, the receiver significantly reduces energy consumption and allows for a faster driving style. Incorporation of the flow channel into the bulges has also been shown to improve the balance of the floater during diving. When driving on water, an improved water supply to the flow channels is achieved even in wavy water, and the risk of air entrainment in the flow channels when driving in this way is greatly reduced.

According to a preferred variant of the invention, each of the two flow channels has its own water inlet, which is each introduced into the bulge. On the other hand, this improves directional stability. On the other hand, the operation is improved in that if one of the two flow channels inadvertently sucks in air, the other flow channel does not. The other flow channel can then continue to provide driving force with the desired thrust.

According to one conceivable embodiment of the invention, it may be provided that the water inlets open towards the underside and/or towards the area located between the bulges. If the water inlets are oriented so as to be open to the underside, the ideal water supply of the flow channel is protected. When the water inlets are oriented to open into the area between the bulges, the driving style is improved because water is actively drawn into the area between the bulges over the sliding surface between the bulges. If the water inlets are aligned in both directions, ie in the direction facing the base and in the area between the bulges, then these effects combine to avoid the risk of a cavitational effect.

In order to achieve a maximum thrust effect, it may be provided that the water outlets of both flow channels open towards the rear of the receiver.

A significant optimization of the efficiency can be achieved by arranging a flow stator in each of the flow channels downstream of the water accelerators, which flow stator is preferably designed to reduce or eliminate swirling of water downstream of the water accelerator. Designed to straighten the water jet. For example, water introduced through the flow channels by a water accelerator such as a propeller is twisted in the water accelerator. This twist reduces thrust. When using a flow stator to reduce or eliminate these vortices, the thrust of the water jet and thus the overall performance of the receiver is greatly increased.

If the motors associated with the two water accelerators are provided to be located outside the flow channels in the hull, the free cross-sectional area of the flow channels remains unaffected by the motor to achieve maximum water flow. Preferably, the engines are located on either side of the central longitudinal axis of the receiver. As a result, the weight of the engines contributes to the stabilization of the receiver during water movement.

A preferred option of the present invention provides that the engines are housed in a common submerged compartment or separate submerged compartments, wherein the submerged compartments can be flooded with ambient water. In this way, the engine can be efficiently cooled by ambient water during operation. Ambient water can be used for cooling purposes virtually unlimitedly.

In order to achieve efficient flow, the submerged compartment or compartments are provided for connection to the environment through at least one water inlet port and one water outlet port, the water inlet port and water outlet port extending in the longitudinal direction of the hull from bow to stern. They are provided in an offset arrangement from one another to create a water flow in the submerged compartment or compartments during operation of the receiver.

It is also conceivable for one or more vents to be assigned to the submerged compartment(s). When the water receiver is placed over water, air from the submerged compartment(s) can quickly escape through the vents, causing the submerged compartments to fill with water. Preferably, the vent or vents are located in the area of the submerged compartments, these submerged compartments being located above and in the opposite direction from the bottom of the hull to allow ventilation to the greatest possible extent.

Submerged compartments can also be used to reduce the buoyancy of the receiver when it is placed over water. This reduces the structural weight of the float, making it easier to transport out of the water.

When two submerged compartments are used, the balance of the receiver can be further improved during operation.

According to a possible variant of the invention, the bulges can be provided as part of the transverse outriggers, preferably a motor and/or a submerged section is provided in each outrigger area. The outriggers may be in direct contact with the actual hull body or may be spaced apart. They may also be integrated into the hull body. If the engine and/or submerged compartment are located on each outrigger, a stable central position of the receiver can be achieved during operation.

In particular, it is advantageous if each of the two motors can be individually controlled and/or regulated. In this way, improved handling can be achieved when cornering. For example, a motor facing the outer radius of a curve when turning may run at a higher power than a motor facing the inner radius. This allows for quick turns.

In particular, assigning the control elements of the regulating device to each handle, that is, the control elements of one handle can be used to regulate the power output of one motor and the control elements of the other handle control the power output of the other motor. can be used to adjust. In this way, the user can actively influence the cornering motion during driving, which supports the fast driving style.

According to another variant of the invention, both engines may be supplied by a common power source. In this case, it is better to use the weight of the power source to balance the load applied by the user to the supporting surface by arranging the power source, which can be designed as a capacitor, in the middle of the ship or the bow area, which is the center of the receiver. It is also conceivable that each motor is assigned its own power source. In that case, redundancy is established. If the power supply fails during operation, the user can use the power from the secondary capacitor to reach the shore at a reduced speed. In this case it is also conceivable that there is a changeover switch that can be used to provide the remaining power to the two motors. When two power sources are used, preferably the power sources are arranged symmetrically with respect to the central longitudinal axis of the receiver and on both sides of the central transverse plane of the receiver passing through the central longitudinal axis, so as to achieve good stability of the receiver.

When using two power sources, it is also recommended that the two power sources for the motors are each located in a submerged compartment or a common submerged compartment. In that way, power sources can be cooled during operation in submerged compartments. This ensures a constant power output of the power supplies.

If it is provided that the regulating device can be used to individually or jointly reverse the direction of rotation of the motors, in that way the thrust direction of the water accelerator can be reversed. Then, inversion or turning of the receiver can be achieved in a limited space.

In order to solve the problem of the present invention, the water plane may be of a type having a hull having a stern and a bow, two flow channels are provided in or on the hull, the flow channels extending from the water inlet to the water outlet, A water accelerator, in particular a propeller or propulsion screw, is arranged in each of the two flow channels, each water accelerator driven by a motor, and the handles, which the user can hold firmly, are located in the midship or bow area between the bow and the stern. are arranged in In such a receiver, the receiver has a tilt sensor for qualitatively or quantitatively detecting the tilt of the receiver about its central longitudinal axis, the inclination sensor is connected to a control device, and the control device is configured to determine whether the motors have different power outputs. in such a way it can be provided to control the two motors as a function of the signal from the tilt sensor when the receiver is tilted.

When the user of this receiver wants to start turning, the user intuitively tilts the receiver about its central longitudinal axis. The tilt sensor then detects this tilt. Thus, the regulating device regulates both motors in relation to their power output. For example, a motor facing the inside of a curve may be operated at a lower power than a motor facing outside. This creates a tight turn, resulting in a fast drive style. It is conceivable that the inclination sensor qualitatively detects the degree of inclination, in particular the angle of inclination. The functional relationship or characteristic map is stored in the memory of the conditioning device. Depending on the measured inclination angle, the adjustment device takes the assigned control parameters for the two motors from a functional relationship or characteristic map. This allows for an optimized turn with maximum drive performance.

The present invention will be described below in more detail on the basis of exemplary embodiments shown in the drawings.

1 is a rear cross-sectional view of the stern of the receiver;
Figure 2 is a bottom view of the receiver of Figure 1;
Figure 3 is a side cross-sectional view of the receiver of Figures 1 and 2;

1 and 2 show a seaplane having a hull 10 , the hull 10 having a bow 11 and a stern 12 . A cockpit 30 is provided in the area of the player 11 , and the cockpit has a display 32 . The display 32 may be used to display certain operating parameters of the receiver. For example, the state of charge of the power source 60 , the depth of the dive, or the speed may be indicated on the display 32 .

There are handles 31 on both sides of the cockpit 30 . The user can use these handles to hold the receiver firmly. The handles 31 may have control elements 31A, 31B.

The support surface 40 adjoins the cockpit 30 in the direction of the stern 12 . The user may rest partially on a support surface 40 that supports, for example, his arms or supports a portion of his upper body. Preferably, the support surface 40 is provided in the middle of the vessel in a concave shape in the shape of a tank, as shown in FIG. 1 . However, it is also conceivable for a mid-abdominal region to be provided which is not concave, but rather curved outwardly or a flat mid-abdominal region.

The mid-ship region is adjoined with outriggers 20 on either side of the central longitudinal axis of the receiver. The outriggers 20 have rounded transition areas 42 . These rounded transition regions 42 are convexly curved outwardly. Of course, other transition areas may also be provided herein. The rounded transition region 42 forms part of the support surface and merges with the midship region of the support surface 40 . The outwardly adjacent upper surfaces of the outriggers 20 form support surfaces for the arms of the user. The sidewalls 21 terminate the longitudinal ends of the outriggers 20 . The side walls 21 are convex to the underside of the receiver to optimize flow. There, the side walls 21 merge into the inner boundary walls 26 . The boundary walls 26 are also part of the outriggers 20 . As shown in FIG. 2 , the boundary walls 26 are divided into a front portion 26.1 , a central portion 26.2 , and a rear portion 26.3 , respectively.

The front portions 26.1 of the boundary walls 26 diverge outward and are thus arranged to optimize the flow.

The outriggers 20 form a protrusion toward the bottom of the receiver. These bulges run in the longitudinal direction of the receiver as shown in FIG. 2 . The protrusions are formed by sidewalls 21 and boundary walls 26 , the boundary wall 26 adjoining the sidewalls 21 . The projections are spaced apart from each other. At least one, in this exemplary embodiment, two deflection surfaces 14 , 15 exist between the bulges on the hull bottom 13 . The sliding surface 14 , 15 or the sliding surfaces 14 , 15 and the boundary walls 26 form a water duct. This water duct is open to the underside of the receiver. The water ducts are also open in the stern and bow areas. This is clearly shown in FIG. 2 .

FIG. 3 shows a section through one of the outriggers 20 along the cross-sectional path outlined by III-III in FIG. 2 . As can be seen in this embodiment, the outriggers 20 have a flow channel 27 extending at least partially through the outriggers 20 . The flow channel 27 has a water inlet 22 and a water outlet 24 . The water inlet 22 opens towards the underside of the receiver and, as can be seen in FIG. 2 , also opens towards the area located between the two outriggers 20 . It is also conceivable that the water inlet 22 opens only towards the underside or towards the area between the two outriggers 20 .

A water accelerator 52 is in the flow channel 27 . It is designed as a propeller. The water accelerator 52 is supported by a drive shaft 51 . The drive shaft 51 is preferably made of carbon fiber reinforced plastic. Accordingly, the drive shaft has a light weight. On the other hand, this reduces the overall weight of the receiver. On the other hand, it reduces the mass inertia to get a faster response.

The drive shaft 51 is connected to the motor 50 . Motor 50 may be designed as an inner rotor motor or an outer rotor motor. In order to achieve a high available torque and thus a high thrust, an external rotor motor is preferably used.

The drive motor 50 is housed in the submerged compartment 28 . At least a portion of the submerged compartment 28 is located in the area of the outrigger 20 . A water inlet port 23 and a water outlet port 25 are assigned to the submerged compartment 28 . In this case, the water inlet port 23 and the water outlet port 25 are arranged offset from each other in the longitudinal direction of the receiver. As shown in FIG. 2 , the water inlet port 23 terminates in the bow area. The water outlet port 25 is arranged in the area of the stern 25 .

1 shows that the water outlet port 25 can be opened around the water outlet 24 , for example to have an annular shape. As can be seen further in FIG. 3 , the motor 50 may be arranged in the submerged compartment 28 . A wall element is arranged between the submerged section 28 and the flow channel 27 . The shaft 51 passes through this wall element at an appropriate point.

Both outriggers 20 are structurally identical, ie the above description applies to both outriggers 20 , preferably both outriggers 20 are of a mirror-symmetrical structure.

The two motors 50 may be centrally supplied from one power source 60 . The power source 60 is accommodated in the hull 10 of the receiver. Preferably, as can be seen in FIG. 3 , the power source 60 is located in the area of the bow 11 of the receiver. However, it is also conceivable for the power source 60 to be arranged in the middle of the ship.

It is also conceivable for two separate power sources 60 to be used. In this case, each of the power sources 60 supplies one of the two motors 50 in the outriggers 20 . For example, the power sources 60 may be disposed on both sides of a central cross-section extending in the longitudinal direction of the receiver. In this way the load is distributed. Preferably, the power sources 60 are of the same design, reducing the number of parts required and allowing for uniform weight distribution. More preferably, the two power sources 60 are arranged symmetrically with respect to the central cross-section.

It is also conceivable for one power supply 60 or two power supplies 60 to be located in the area of the submerged compartments 28 .

In the exemplary embodiment shown, the submerged sections 28 are supplied via separate water inlet ports 23 . However, it may also be possible for one common water inlet port 23 to be provided in both submerged sections and/or one common water outlet port 25 to be provided to both submerged sections 28 .

It is also conceivable that one common submerged compartment 28 is provided, in which two motors 50 and/or a power source 60 are arranged. It is also conceivable that for cooling purposes an electric conditioning unit for the receiver may be accommodated in one or more submerged compartments 28 . Of course, the adjustment unit may be located at another suitable position on the receiver.

For example, the regulating unit may be used to individually control the power output of the power source 60 or two motors 50 connected to the power sources 60 . In this exemplary embodiment, the handles 31 have control elements 31A, 31B as described above. The control elements 31A, 31B are connected in such a way that the left handle 31 can be used to control one motor and the right handle 31 can be used to control the other motor 50 . In particular, the user can individually control the power output of the motors 50 in that way. This improves the turning motion. For example, when the starboard motor 50 operates with a higher power than the portside motor 50 , cornering in the port direction is supported.

Additionally or alternatively to this control option of the motors 50 , it may also be provided for a tilt sensor to be arranged in or on the hull 10 . This inclination sensor detects the inclination of the receiver with respect to its central longitudinal axis. The inclination sensor may be used to qualitatively or quantitatively measure the inclination of the receiver with respect to its central longitudinal axis. The tilt sensor is connected to the adjustment device. The adjustment device is designed to control the two motors 50 as a function of the signal from the tilt sensor when the receiver is tilted in such a way that the motors 50 have different power outputs. In this way, the turning motion can only be affected by the tilt of the receiver.

When the water receiver is placed in water, water flows through the water inlet ports 23 and water outlet ports 25 into the submerged compartment 28 to fill the latter.

Provision may be made such that one or more vents are allocated to the submerged compartment 28 , preferably the upper region, to completely or nearly completely fill with water.

The water inlets 22 and water outlets 24 are also used to fill the flow channels 27 .

The receiver can now be operated. To this end, the user activates the motors 50 using controls 31A, 31B on the handle 31 . Due to the activation of the motors 50 , the drive shafts 51 and together with them the water accelerator 52 are actuated. The water accelerator 52 introduces water through the water inlets 22 to accelerate the water in the flow channel 27 . Downstream of the water accelerators 52 , the accelerated water has a vortex imprinted thereon by the water accelerators 52 . Accordingly, as can be seen in FIG. 3 , the flow stators 53 are provided downstream of the water accelerator 52 . These flow stators 53 are arranged in the opposite direction to the vortex of the water jet and have water guide vanes which reduce and preferably completely eliminate the vortex of the water jet. Downstream of the flow stators 53, the water jet exits the receiver and creates its thrust effect.

During the underwater/aquatic movement, the water collapses between the bulges and the sliding surfaces 14 , 15 . The sliding surfaces 14 , 15 can be designed as convex or concave surfaces. Water enters the water duct between the bulges and the sliding surfaces 14 , 15 and is accelerated to improve the driving characteristics.

After the underwater/water movement is finished, the user can lift the receiver out of the water. In this process, the submerged section 28 and the flow channels 27 all pass through the water inlets 22 , the water outlets 24 , the water inlet ports 23 , and the water outlet ports 25 . empty This greatly reduces the weight of the receiver and makes transportation easier.

Claims (16)

A floater having a hull (10) with a stern (12) and a bow (11), in particular a swimming and/or diving aid, wherein two flow channels (27) are provided in or in the hull (10) ), said flow channels extending from a water inlet 22 to a water outlet 24 , a water accelerator 52 , in particular a propeller or a propelling screw, arranged in each of the two flow channels 27 . Each water accelerator 52 is driven by a motor 50 , and handles 31 , which the user can hold firmly, are provided midship between the bow 11 and the stern 12 . ) or in the bow area, on which the users can hold it firmly, a support surface 40 is provided adjacent to the handles 31 in the direction of the stern 12 , wherein the user At least partially resting on the support surface, two spaced apart bulges extending in the longitudinal direction of the hull (10) are provided on the underside of the hull (10), between the bulges at least In the receiver, on which one water-sliding surface (14, 15) is arranged,
The receiver according to claim 1, wherein said flow channels (27) extend at least partially in said region of said bulges. The method of claim 1,
Said two flow channels (27) each has its own water inlet (22), each flow channel being introduced into the bulges. 3. The method of claim 2,
Said water inlets (22) open towards the underside and/or towards the area located between the bulges. 4. The method according to any one of claims 1 to 3,
The receiver, characterized in that the water outlets (24) of both flow channels (27) open toward the rear of the receiver. 5. The method according to any one of claims 1 to 4,
A flow stator 53 is arranged in each of the flow channels 27 downstream of the water accelerator 52 in the flow direction, the flow stator reducing or eliminating the vortex of the water downstream of the water accelerator 52 . Receiver, characterized in that it is preferably designed to straighten the water jet. 6. The method of claim 5,
The motors 50 associated with the two water acceleration devices 52 are arranged outside the flow channels 27 in the hull 10 and are preferably arranged on both sides of the central longitudinal axis of the floatator. receiver, characterized in that 7. The method of claim 6,
Said engines (50) are housed in a cavity or in separate submerged compartments (28), said submerged compartments (28) capable of being submerged with ambient water. 8. The method of claim 7,
The submerged compartment or compartments 28 are connected to the environment through at least one water inlet port 23 and one water outlet port 25 , the water inlet port 23 and the water outlet port 25 . ) are arranged offset from each other in the longitudinal direction of the hull 10 extending from the bow 11 to the stern 12 so that water flows in the submerged compartment 28 or compartments 28 during operation of the floatplane. Receiver, characterized in that for generating. 9. The method according to any one of claims 1 to 8,
Said projections are part of transverse outriggers (20), preferably an engine (50) and/or a submerged compartment (28) is provided in the region of each outrigger (20). 10. The method according to any one of claims 1 to 9,
Receiver, characterized in that each of said two motors (50) can be individually controlled and/or adjustable. 11. The method according to any one of claims 1 to 10,
The control elements 31A, 31B of the regulating device are assigned to the respective handle 31 , ie the control elements 31A, 31B of one handle 31 are the power of the one motor 50 . Receiver, characterized in that it can be used to regulate the output and the control elements (31A, 31B) of the other handle (31) can be used to regulate the power output of the other motor (50). 12. The method according to any one of claims 1 to 11,
Both motors (50) are supplied by a common power source (60) or each motor (50) is assigned its own power source (60). 13. The method of claim 12,
Receiver according to claim 1, wherein said two power sources (60) of said motors (50) are respectively located in a submerged compartment (28) or in a common submerged compartment (28). 14. The method according to any one of claims 1 to 13,
Receiver, characterized in that the adjustment device can be used to individually or jointly reverse the direction of rotation of the motors (50), and the thrust direction of the water acceleration device (52) can be reversed. A floater having a hull (10) with a stern (12) and a bow (11), in particular a swimming and/or diving aid, wherein two flow channels (27) are provided in or in the hull (10) ), said flow channels extending from a water inlet 22 to a water outlet 24 , a water accelerator 52 , in particular a propeller or a propelling screw, arranged in each of the two flow channels 27 . Each water accelerator 52 is driven by a motor 50 , and handles 31 , which the user can hold firmly, are located in the middle of the ship between the bow 11 and the stern 12 . or arranged in the bow area, in the receiver,
The receiver has a tilt sensor that qualitatively or quantitatively detects a tilt of the receiver with respect to its central longitudinal axis, the tilt sensor is connected to a control device, and the control device is configured such that the motors 50 have different power Receiver according to claim 1, characterized in that it controls two motors (50) as a function of a signal from the inclination sensor when the receiver is tilted in such a way that it has an output. 16. The method of claim 15,
15. A receiver characterized by any one of claims 1 to 14.

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