DRIVE FOR A BOAT, DRIVE SYSTEM FOR A BOAT, BOAT

Abstract

The invention relates to a drive (10) for a boat as an additional drive or alternative drive to a main drive (20), which is provided with a cavitation plate (24). The drive (10) in this case comprises an electric motor (8) and is designed in such a manner that it can easily be fastened to the main drive. The drive (10) is configured to be fastened to the cavitation plate such that after assembly it does not project rearwards beyond the cavitation plate (24) of the main drive (20).

Claims

1. A drive (10) for a boat as an additional drive or alternative drive to a main drive (20) which is provided with a cavitation plate (24), the drive (10) comprising: an electric motor (8), wherein the drive (10) is configured to be fastened to the cavitation plate such that after assembly said drive (10) does not project rearwards beyond the cavitation plate (24) of the main drive (20).

2. The drive (10) according to claim 1, further comprising: an additional propeller (5) which is driven by the electric motor (8).

3. The drive (10) according to claim 2, wherein not more than the additional propeller (5) projects rearwards beyond the cavitation plate (24) of the main drive (20).

4. The drive (10) according to claim 1, further comprising: a battery system for supplying energy to the electric motor (8).

5. The drive (10) according to claim 4, further comprising: a battery management system for controlling and monitoring the battery system.

6. The drive (10) according to claim 1, further comprising: a mounting support (3) for holding the electric motor (8) and an additional propeller (5), if there is one.

7. The drive (10) according to claim 6, wherein the mounting support (3) has a two-part design.

8. The drive (10) according to claim 1, further comprising: a housing (9) for receiving the electric motor (8).

9. The drive (10) according to claim 8, wherein a mounting support (3) and the housing (9) have a two-part design.

10. The drive (10) according to claim 6, wherein the mounting support (3) has one or multiple wings (2).

11. The drive (10) according to claim 6, wherein the mounting support (3) has a recess (1) for receiving an anode.

12. The drive (10) according to claim 1, wherein an additional drive is fastened to the cavitation plate (24) by a form-fitting, force-fitting or substance-bonded connection.

13. The drive (10) according to claim 12, wherein the additional drive is clamped to the cavitation plate (24).

14. A drive system (100) for a boat, comprises: a main drive (20), and a drive (10) according to claim 1.

15. A boat, comprising: a drive system according to claim 13.

16. A boat, comprising: a drive (10) according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Embodiments of the invention are explained in greater detail with the help of the drawings and the following description.

[0034] In the drawings:

[0035] FIG. 1 shows a schematic representation of a front view of a mounting support of the drive according to the invention,

[0036] FIG. 2 shows a schematic representation of a rear view of the mounting support of the drive according to the invention,

[0037] FIG. 3 shows a schematic representation of a perspective view of the drive according to the invention,

[0038] FIG. 4 shows a schematic representation of a side view of the drive according to the invention from the right,

[0039] FIG. 5 shows a schematic representation of a plan view of the drive according to the invention,

[0040] FIG. 6 shows a schematic representation of a bottom view of the drive according to the invention,

[0041] FIG. 7 shows a schematic representation of a side view of a drive system according to the invention when the boat is at a standstill,

[0042] FIG. 8 shows a schematic representation of a view of the drive system according to the invention when the boat is at a standstill in a position behind the boat,

[0043] FIG. 9 shows a schematic representation of a side view of the drive system according to the invention during planing of the boat, and

[0044] FIG. 10 shows a schematic representation of a view of the drive system according to the invention during planing of the boat in a position behind the boat.

DETAILED DESCRIPTION

[0045] In the following description of embodiments of the invention, the same or similar elements are noted using the same reference numbers, wherein there is no repeated description of these elements in individual cases. The figures only provide a schematic representation of the subject matter of the invention.

[0046] FIG. 1 shows a schematic representation of a front view of a mounting support 3 of the drive 10 according to the invention. The drive 10 according to the invention comprises an additional propeller 5 in this case. FIG. 2 shows a schematic representation of a rear view of the mounting support 3 of the drive 10 according to the invention.

[0047] It can be seen from FIG. 1 that the mounting support 3 has a recess 1 for receiving an anode. The anode fastened to the main drive can be freely accessible due to the design of the main drive. In this way, a change of anode can also always be performed, even when the drive 10 according to the invention is fastened.

[0048] It can also be seen from FIG. 1 that the mounting support 3 has fastening holes 4 which are used for fastening the drive 10 to the main drive. The drive 10 in this case can be fastened to the main drive by a form-fitting, force-fitting and/or substance-bonded connection. In this case, the drive 10 can be fastened to the main drive by screws, adhesion or clamping, for example.

[0049] It further emerges from FIG. 1 that the mounting support 3 has two wings 2. The wings 2 in this case are integrated in the mounting support 3. This means that an additional wing extension can be dispensed with.

[0050] It can be seen from FIG. 2 that the mounting support 3 has an empty space 7 for an electric motor 8 (cf. FIGS. 3 and 4) and a transmission or a coupling. It further emerges from FIG. 2 that the mounting support 3 likewise has variants 6 for clamp fittings for fastening the drive 10 to the main drive.

[0051] The mounting support 3 of the drive 10 according to the invention can have an integral design in this case. The mounting support 3 can be mechanically worked from one piece in this case or also created by 3D printing. A division of the mounting support 3 into individual parts is also possible, however.

[0052] FIG. 3 shows a schematic representation of a perspective view of the drive 10 according to the invention, while FIG. 4 shows a schematic representation of a side view of the drive 10 according to the invention from the right. FIG. 5 shows a schematic representation of a plan view of the drive 10 according to the invention, while FIG. 6 shows a schematic representation of a bottom view of the drive 10 according to the invention.

[0053] It emerges from FIGS. 3-6 that the drive 10 according to the invention has an electric motor 8 for driving the additional propeller 5 and a housing 9 for receiving the electric motor 8. In this case, a coupling and/or a transmission can be received in the housing 9.

[0054] The mounting support 3 and the housing 9 have an integral design in this case. The strength and stability of the drive 10 according to the invention is thereby increased.

[0055] The shape of the mounting support 3 can be adapted to the installation space or to the shape of the main drive, for example. The material to be used for the mounting support 3 or the housing 9 can be freely selected while taking account of seawater and freshwater compatibility. For example, the mounting support 3 or the housing 9 made be produced from metal, such as high-grade steel or aluminium, for example, plastics of all kinds, such as polyamide (PA) or polyoxymethylene (POM), for example, or alloys of all kinds.

[0056] FIG. 7 shows a schematic representation of a side view of a drive system 100 according to the invention when the boat is at a standstill (not shown), while FIG. 8 shows a schematic representation of a view of the drive system 100 according to the invention when the boat is at a standstill in a position behind the boat.

[0057] FIGS. 9 and 10 each show a schematic representation of the drive system 100 according to the invention, that was already illustrated in FIGS. 7 and 8, during planing of the boat. In this respect, FIG. 9 schematically illustrates the side view of the drive system 100, while FIG. 10 shows a view of the drive system 100 in a position behind the boat.

[0058] It is clear from FIGS. 7 to 10 that the drive system 100 according to the invention comprises a main drive 20 and an auxiliary drive 10. In this respect, the main drive 20 has a main propeller 22. The main drive 20 is also provided with a cavitation plate 24, which is a horizontal plate above the main propeller 22 of the main drive 20. In this respect, the cavitation plate 24 is intended to prevent cavitation.

[0059] It is also clear from FIGS. 7-10 that the mounting support 3 of the auxiliary drive 10 according to the invention has a floor plate 3a and a main body 3b. In the present case, the floor plate 3a is connected to the main body 3b by fastening means 3c, such as screws or bolts, for example.

[0060] In the present case, in FIGS. 7-10, the auxiliary drive 10 is clamped outside the cavitation plate 24, in order to avoid penetration of the cavitation plate 24, which impairs the stability of the cavitation plate 24. The stability of the cavitation plate 24 is therefore ensured.

[0061] It can be seen in FIGS. 7 and 9 that the auxiliary drive 10 is fastened to the cavitation plate 24 flush with a plate end 24a of the cavitation plate 24 that points away from the boat. In this way, the auxiliary drive 10 does not project beyond the cavitation plate 24. By virtue of this arrangement in which the auxiliary drive is fastened to the cavitation plate 24 flush with the plate end 24a of the cavitation plate 24, the auxiliary drive 10 is above the water line 34 during planing of the boat. In this case, the fuel consumption during planing remains the same, since no additional resistance is created by the additional propeller 5 of the auxiliary drive 10, which is the only component of the auxiliary drive 10 projecting beyond the cavitation plate in the embodiment shown here.

[0062] When the boat is at a standstill or has a low velocity below planing, usually a velocity of less than 15 km/h, i.e. during displacement travel, as is evident from FIGS. 7 and 8, the main drive 20 and the auxiliary drive 10 are below the water line 30.

[0063] During planing of the boat, as illustrated in FIGS. 9 and 10, the water is subjected to thrust by the moving boat and the auxiliary drive 10 is thus above the rear water line 32 and lateral water lines 32 during regular operation of the boat.

[0064] The invention is not limited to the exemplary embodiments described here and the aspects highlighted therein. Instead, a plurality of modifications is possible within the scope specified by the claims, said modifications falling within the actions of the person skilled in the art.

LIST OF REFERENCE NUMBERS

[0065] 10 drive [0066] 1 recess for receiving an anode [0067] 2 wing [0068] 3 mounting support [0069] 3a floor plate of the mounting support [0070] 3b main body of the mounting support [0071] 3c fastening means [0072] 4 fastening holes [0073] 5 additional propeller [0074] 6 variant for clamp fitting [0075] 7 empty space for electric motor [0076] 8 electric motor [0077] 9 housing [0078] 20 main drive [0079] 22 main propeller [0080] 24 cavitation plate [0081] 24a plate end of the cavitation plate [0082] 30 water line when the boat is at a standstill [0083] 32 rear water line during planing of the boat [0084] 34 lateral water line during planing of the boat [0085] 100 drive system