Boat drive comprising auxiliary drives

A pivotable boat drive comprising:

• a transmission unit (1) having an input shaft (11) at a first connection point (A), and the input shaft (11) of a first drive device (10) being positioned, rotatable around a first rotational axis (5), and being drivable by a drive engine;
• an output shaft (3) being coupled with the input shaft (11) and rotatable around a second rotational axis (6);
• the first and the second rotational axes (5, 6) are neither parallel nor concentrically positioned with respect to one another;
• the transmission unit (1) having second and third additional connection points (B, C) so that two additional drive devices (20), each driveable by an additional drive engine, can provide drive to the output shaft (3) of the transmission unit (1);
• and
• the transmission unit (1) thus having three different installation connection points (A, B, C) at which different drives can provide drive to the output shaft (3).

A pivotable boat drive comprising:

• a transmission unit (1) having a first connection point (A) with a first drive device (10) and a drive input shaft (11), and the first drive device (10) being driven by a first drive motor;
• the drive input shaft (11) of the first drive device (10) being supported by the first drive device (10) for rotation about a first rotational axis (5);
• an output shaft (3) being coupled with the input shaft (11) and being rotatable about a second rotational axis (6);
• the first rotational axis (5) being neither parallel to nor concentric with the second rotational axis (6);
• the transmission unit (1) having second and third connection points (B, C), the second connection point (B) having a drive device (20) being driveable by an additional drive motor for driving the output shaft (3);
• and
• the first, the second and the third connection points (A, B, C) facilitating installation of different drives, at different locations of the transmission unit (1), for supplying drive to the output shaft (3).

A transmission unit (1) of a pivotable boat drive, the transmission unit (1) comprising:

• a first connection point (A) for connecting a drive motor to the transmission unit (1), the first connection point (A) comprising a drive device (10) with an input shaft (11) that is that is supported adjacent the first connection point (A) by a bearing for rotation about a first rotational axis (5);
• the input shaft (11) being rotationally fixed to a first bevel gear (13);
• a second connection point (B) for connecting an additional drive motor to the transmission unit (1), the second connection point (B) comprising a drive device (20) with a hollow shaft (21) that is rotatably supported at the second connection point (B) by a bearing for rotation about a second rotational axis (6);
• the hollow shaft (21) being rotationally fixed to a second bevel gear (23), the hollow shaft (21) being drivable by the additional drive motor;
• an output shaft (3) being coaxially supported within and rotationally fixed to the hollow shaft (21);
• the first bevel gear (13) engaging the second bevel gear (23) for transmitting drive from the input shaft (11) to the output shaft (21);
• and
• a third connection point (C) for connecting a further drive motor to the transmission unit (1), the third connection point (C) comprising a drive device (30) that is axially aligned along the first rotational axis (5), and the first rotational axis (5) is neither parallel to nor concentrically aligned with the second rotational axes (5, 6).