Claims
- 1. A motorized watercraft,
- comprising a hydrodynamically embodied hull (1),
- a flow channel (5) disposed in the hull, and extending largely in a longitudinal direction and through which water flows, wherein the flow channel upstream has an inlet opening in a forward half of the hull that is curved slightly in a direction of an underside of the hull; and downstream has an outlet opening on the stern that is lightly curved in a direction of the underside of the hull,
- a propeller (13), in the flow channel (3) which serves the watercraft,
- an electric motor (8), coupled to the propeller (13),
- a control unit for controlling the electric motor,
- an energy source including an electric battery (7),
- handles (2), disposed on opposite sides of the hull (1), for the person steering the motorized watercraft,
- a device on at least one of the handles for controlling the rpm of the propeller (13),
- the handles are disposed in a forward to a middle region of the hull,
- a person for steering the motorized watercraft lies at least partly on the motorized watercraft,
- the bow of the hull has a hydrodynamic configuration that guides a water flow largely past the person,
- the battery is disposed in a separate, removable container secured to the hull, and
- the handles (2) and hull are embodied ergonomically, to enable steering the motorized watercraft in conjunction with the person.
- 2. The motorized watercraft in accordance with claim 1, in which the container containing the battery is disposed on an underside portion of the hull; that the container is removable in a direction of travel of the watercraft; and that the electrical connection of the container and the battery is effected via a plug connection between the underside portion of the hull and the top side of the container.
- 3. The motorized watercraft in accordance with claim 1, in which the electric motor is disposed in the hull portion outside the flow channel.
- 4. The motorized watercraft in accordance with claim 2, in which the electric motor is disposed in the hull portion outside the flow channel.
- 5. The motorized watercraft in accordance with claim 1, in which the free spaces (6) in the hull (1) are at least partly filled with foam.
- 6. The motorized watercraft in accordance with claim 2, in which the free spaces (6) in the hull (1) are at least partly filled with foam.
- 7. The motorized watercraft in accordance with claim 3, in which the free spaces (6) in the hull (1) are at least partly filled with foam.
- 8. The motorized watercraft in accordance with claim 4, in which the free spaces (6) in the hull (1) are at least partly filled with foam.
- 9. The motorized watercraft in accordance with claim 1, in which a float bladder is connected to the hull (1), and a volume of the float bladder can be increased or decreased as needed for descending and ascending during movement of the boat.
- 10. The motorized watercraft in accordance with claim 2, in which a float bladder is connected to the hull (1), and a volume of the float bladder can be increased or decreased as needed for descending and ascending during movement of the boat.
- 11. The motorized watercraft in accordance with claim 3, in which a float bladder is connected to the hull (1), and a volume of the float bladder can be increased or decreased as needed for descending and ascending during movement of the boat.
- 12. The motorized watercraft in accordance with claim 4, in which a float bladder is connected to the hull (1), and a volume of the float bladder can be increased or decreased as needed for descending and ascending during movement of the boat.
- 13. The motorized watercraft in accordance with claim 1, in which a cable pocket accessible from outside said hull and sealed off on an inside is disposed in the hull (1).
- 14. The motorized watercraft in accordance with claim 1, in which louvers for filtering out foreign objects are present upstream of the propeller (13) in the flow channel (3).
- 15. The motorized watercraft in accordance with claim 1, in which the device controlling the rpm is set immediately to zero rpm if the person releases rpm control of the handle (2).
- 16. The motorized watercraft in accordance with claim 1, in which the shaft (11) of the propeller (13) is disposed in a bearing block (22), which is secured to a wall (14) of the flow channel (5) via radial struts (23).
- 17. The motorized watercraft in accordance with claim 16, in which the shaft (11) of the propeller (13) is guided in a pipe (21), which in sealed fashion penetrates the wall (14) of the flow channel (5) in the region of a curvature at a certain angle and on the other end is sealingly secured to the bearing block (22).
- 18. The motorized watercraft in accordance with claim 16, in which a transmission (9) belt drive or gear-wheel transmission is present between the shafts of the propeller (13) and of the electric motor (8).
- 19. The motorized watercraft in accordance with claim 17, in which a transmission (9) belt drive or gear-wheel transmission is present between the shafts of the propeller (13) and of the electric motor (8).
- 20. The motorized watercraft in accordance with claim 1, in which indicator devices for battery charging, dive depth and the like are disposed within viewing range of the diver on the jacket face of the hull (1).
Priority Claims (1)
Number |
Date |
Country |
Kind |
195 11 850.2 |
Mar 1995 |
DEX |
|
Parent Case Info
This application is a 371 of PCT/DE96/00568, filed Apr. 1, 1996.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/DE96/00568 |
4/1/1996 |
|
|
3/9/1998 |
3/9/1998 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO96/30087 |
10/3/1996 |
|
|
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4864959 |
Takamizawa et al. |
Sep 1989 |
|
4996938 |
Cameron et al. |
Mar 1991 |
|
5568783 |
Ditchfield |
Oct 1996 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
9200124 |
Jan 1992 |
WOX |