Torqeedo Gmbh

Leantec Motor Gmbh & Co. Kg

Friedrich Boebel

Jens Biebach

Heinrich Walk

Soeren Hein

Klaus Kraft

A circuit and a method for connecting a first electrical storage device and a second electrical storage device in parallel is disclosed. The first electrical storage device and the second electrical storage device have in each case a no-load voltage U, Uand an impedance Rand R, respectively, and have connecting terminals for charge withdrawal or charge supply. The no-load voltage Uof the first storage device is greater than the no-load voltage Uof the second storage device. In the case of a charge withdrawal, a charge is initially only withdrawn from the first storage device and the second storage device is connected in parallel with the first storage device when the difference of the voltage dropped across the connecting terminals of the first storage device and the no-load voltage Uof the second storage device is less than a predetermined differential add-on voltage.

Connecting electrical storage devices in parallel

An electric motor has a rotor that is rotatably arranged around a rotor shaft. The rotor is mounted by way of at least one outer bearing that is arranged at a radial distance from the rotor shaft. The rotor has an annular design and is connected to the rotor shaft by way of at least one flexible connecting element.

Electric motor and bearing arrangement

A mounting for fastening an outboard engine on a boat, in particular a kayak, has a support arm with a first fastening element for fastening the support arm on the boat. The first fastening element is a clamping device for receiving and fixing a knob on the boat.

Mounting for an outboard engine

An outboard drive for a boat, having an electric motor, a power supply line and a contact-making apparatus, connected to the power supply line for connecting a DC voltage source. The outboard drive has a space for accommodating the DC voltage source. The contact-making apparatus has a first and a second contact stage, and a current limitation element is connected between the DC voltage source and the power supply line in the first contact stage.

Outboard motor for a boat

A battery with at least one battery cell has two battery poles and current-conducting connections between the battery cells and the battery poles. A safety switching encompasses a current-limiting element in the connection between the battery cells and one of the battery poles. A switch is parallel to the current-limiting element and a control device closes the switch, if the current between the battery cells and the battery poles falls below a predetermined threshold minimum current.

Battery

A transportable outboard drive for a boat has a head, a pylon, a shaft connecting the head and the pylon, an electric motor and a cable running inside the shaft. The shaft has at least two shaft sections and wherein the head, shaft and pylon can be arranged in a working configuration or in a transport configuration. In the working configuration, the head, the shaft and the pylon are rigidly connected to each other. In the working configuration and the transport configuration, the cable and shaft are differently positioned with respect to each other, whereas, in its transport configuration, the shaft sections are separated from each other.

Transportable outboard motor

An outboard drive has an electric motor that is electronically controlled from an inverter. The outboard drive includes a pylon, with the electric motor and inverter arranged in the pylon.

Growing community of inventors

Eurasburg, Germany

Friedrich Boebel