Abstract: The present invention relates to a device (1) for setting the drive position of an electric drive of a boat, having a housing (14) with two receiving elements (15a, 15b) arranged on two opposing side walls (140) of the housing (14) for defining a pivot axis (17) and a drive lever (10) that can be pivoted around this pivot axis (17), wherein the drive lever (10) is received by two receiving elements (15a. 15b).

Abstract: System and methods are provided that relate to a drive arrangement for propelling a boat, in particular a kayak. In some embodiments, the drive arrangement can include an electric drive motor with a shaft and a receiving device for receiving the shaft. An arresting element can be provided for determining a first desired distance along the shaft between the receiving device and the drive motor.

Abstract: A boat drive is provided for driving a water vehicle. The boat drive includes a drive housing made from a first metallic material and a propeller shaft made from a second metallic material. Moreover, the propeller shaft is designed to receive a drive propeller and the propeller shaft is mounted in the drive housing. In addition, a propeller shaft isolator is provided to electrically isolate the propeller shaft from the drive housing.

Abstract: The present disclosure relates to a folding propeller, comprising a hub, which may be driven via a drive shaft around a rotation axis, at least two propeller blades, which are pivotably arranged on the hub between a folded position and an unfolded position, and a propeller blade arresting means, which is configured for arresting the propeller blades in the unfolded position, wherein the propeller blade arresting means is movable relative to the hub in rotation direction between a starting position and an arresting position.

Abstract: The present disclosure relates to a drive arrangement for propelling a boat, for example a kayak, having an electric drive motor with a shaft, a receiving device for receiving the shaft and a holder for holding the receiving device on the boat. In some embodiments, the receiving device is pivotable for pivoting the electric drive motor between an operating position and a tilt position relative to the holder. A switchable fixing device is provided for fixing the receiving device in the operating position. The fixing device has an overload protection for disconnecting the fixing in the operating position when a predetermined pivot force in the direction of the tilt position is exceeded.

Abstract: A drive for a boat includes a housing that is arranged underwater during operation, and that houses an electric motor that drives a propeller. The housing includes a cooling section that includes a coolant duct.

Abstract: The present disclosure relates to a folding propeller (10) for a water vehicle, comprising a hub (12) which is drivable about a rotation axis (D) via a drive shaft, and a propeller blade (14) which is arranged on the hub (12) to be pivotable about a pivot axis (S) between a maximum closed position (P1) and a maximum open position (P2), wherein the pivot axis (S) defines, together with a normal (ND) to the rotation axis (D) which intersects the pivot axis (S), a maximum opening plane (EMax), wherein in the driven state and a pivot position of the propeller blade (14) in the region of the maximum open position (P2), at least one opening force acts upon the propeller blade (14) which results from rotation of the folding propeller (10) and in relation to the rotation axis (D) is directed substantially radially outwardly, wherein an effective force application point (EAP) of the opening force is arranged spaced from the maximum opening plane (EMax) and is substantially arranged in the closing direction (SR) of the

Abstract: The present disclosure relates to a folding propeller, comprising a hub, which may be driven via a drive shaft around a rotation axis, at least two propeller blades, which are pivotably arranged on the hub between a folded position and an unfolded position, and a propeller blade arresting means, which is configured for arresting the propeller blades in the unfolded position, wherein the propeller blade arresting means is movable relative to the hub in rotation direction between a starting position and an arresting position.

Abstract: The present disclosure relates to a wall element (10) for the construction of a housing to accommodate an energy storage device or to create a cooling plate, comprising a base plate (2) and a flow channel (4) formed in the base plate (2) with a flow cross-section for a cooling medium (6) to flow through, an inlay (8) being disposed in the flow channel (4) in order to reduce the flow cross-section.

Abstract: The present invention relates to a device (1) for setting the drive position of an electric drive of a boat, having a housing (14) with two receiving elements (15a, 15b) arranged on two opposing side walls (140) of the housing (14) for defining a pivot axis (17) and a drive lever (10) that can be pivoted around this pivot axis (17), wherein the drive lever (10) is received by two receiving elements (15a. 15b).

Abstract: System and methods are provided that relate to a drive arrangement for propelling a boat, in particular a kayak. In some embodiments, the drive arrangement can include an electric drive motor with a shaft and a receiving device for receiving the shaft. An arresting element can be provided for determining a first desired distance along the shaft between the receiving device and the drive motor.

Abstract: The present disclosure relates to a method (1) and an apparatus (10) for adjusting flow properties of a propeller (103) of a propulsion system (100) for watercrafts (1000), in particular for boats and ships, depending on the operation state, comprising the steps of determining the operation state (2) of the propulsion system (100), wherein in the propulsion system (100) either a thrust state or a generator state, in particular a hydrogeneration state for generating energy by hydrogeneration, is present, and adjusting the flow properties (3) of the propeller (103) based on the determined operation state.

Abstract: The present invention relates to a drive arrangement (10) for driving and steering a boat (1), comprising an electric drive motor (14) having a shaft (14a) and receiving element (12), receivable in or on a hull (3) of the boat (1), for receiving the shaft (14a), wherein the shaft (14a) is pivotably or rotatably mounted in the receiving element (12) in a position of the receiving element (12) to be arranged outside the boat hull (3).

Abstract: The present disclosure relates to a boat drive for driving a boat, comprising a drive unit comprising an electric motor and a mounting connected to the drive unit for connecting the boat drive to the boat, wherein the mounting is provided for distancing the drive unit from a hull of the boat, wherein a decoupling arrangement for decoupling of oscillations (S) generated in the drive unit is arranged between the drive unit and the mounting.

Abstract: System and methods are provided that relate to a drive arrangement for propelling a boat, in particular a kayak. In some embodiments, the drive arrangement can include an electric drive motor with a shaft and a receiving device for receiving the shaft. An arresting element can be provided for determining a first desired distance along the shaft between the receiving device and the drive motor.

Abstract: The present disclosure relates to a drive arrangement for propelling a boat, for example a kayak, having an electric drive motor with a shaft, a receiving device for receiving the shaft and a holder for holding the receiving device on the boat. In some embodiments, the receiving device is pivotable for pivoting the electric drive motor between an operating position and a tilt position relative to the holder. A switchable fixing device is provided for fixing the receiving device in the operating position. The fixing device has an overload protection for disconnecting the fixing in the operating position when a predetermined pivot force in the direction of the tilt position is exceeded.