Importance

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Abstract

The invention relates to a ship propulsion unit with drive devices in the hull and all underwater pod, which is located outside of the hull and which has a front propeller and a rear propeller as well as torque transmitting devices between the drive devices and the propellers. The torque transmitting devices contain: a torque transmitting shalt that is shared by both propellers and serves to transmit torque from the drive devices into the underwater pod; front transmission devices, which are placed in the underwater pod and which are located between the shared torque transmitting shaft or both propellers and the front propeller, and; rear transmission devices that are located between the shared torque transmitting shaft of both propellers and the rear propeller. The invention also relates to a ship propulsion method during which a front propeller and a rear propeller, which are assigned to an underwater pod located outside of the hull, are driven by drive devices in the hull via torque transmitting devices. Both propellers are driven via: a torque transmitting shaft, which is contained in the torque transmitting devices, shared by both propellers, and which serves to transmit torque from the drive devices to the underwater pod; front transmission devices, which are placed in the underwater pod and which are located between the shared torque transmitting shaft of both propellers and the front propeller, and; rear transmission devices that are located between the shared torque transmitting shaft of both propellers and the rear propeller.

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First Claim