Two-engine propulsion system for a ship

A propulsion system for a ship, comprising:

• a front and a rear propelling engines (M1, M2) coupled via a gear system (6) to a ship output shaft (7),
• a front input shaft (9) of the gear system having a first axis of rotation (1) and allocated to the front propelling engine (M1),
• a rear input shaft (10) having a second axis of rotation (2) and allocated to the rear propelling engine (M2), and
• a gear output shaft (11) having a third axis of rotation (3) and allocated to the ship output (7),
• said ship output (7) extending below the rear propelling engine (M2),
• the second axis of rotation (2) being disposed above the first axis of rotation (1) and
• the first axis of rotation (1) being disposed above the third axis of rotation (3), wherein
• the gear system (6) has
• an input gear (14), mounted for rotation by the rear input shaft (10) and permanently meshed with a first intermediate gear (Z2) coaxial with the first axis of rotation (1) and
• an output gear (13), mounted for rotation by the gear output shaft (11) and meshed with a second intermediate gear (Z1) mounted rotating about the first axis of rotation (1) so as to maximize the vertical axial distance between the rear input shaft (10) and the gear output shaft (11) and wherein
• the first intermediate gear (Z1) is coupled by a first separating clutch (K1) to the front input shaft (9) and by a second separating clutch (K2) to the second intermediate gear (Z2) and the first intermediate gear (Z1) is permanently meshed with the output gear (13) so that the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2).

A propulsion system for a ship, comprising:

• a front and a rear propelling engines (M1, M2) coupled via a gear system (6) to a ship output shaft (7),
• a front input shaft (9) of the gear system having a first axis of rotation (1) and allocated to the propelling engine (M1),
• a rear input shaft (10) having a second axis of rotation 2) and allocated to the rear propelling engine (M2), and
• a gear output shaft (11) having a third axis of rotation (3) and allocated to the ship output shaft (7),
• said ship output shaft (7) extending below the rear propelling engine (M2),
• the second axis of rotation (2) being disposed above the first axis of rotation (1) and
• the first axis of rotation (1) being disposed above the third axis of rotation (3), wherein
• the gear system (6) has
• an input gear (14), mounted for rotation by the rear input shaft (10) and a first intermediate gear (Z2) coaxial with the first axis of rotation (1) and
• an output gear (13), mounted for rotation by the gear output shaft (11) and meshed with a second intermediate gear (Z1) mounted rotating about the first axis of rotation (1) so as to maximize the vertical axial distance between the rear input shaft (10) and the gear output shaft (11) and wherein
• the first intermediate gear (Z1) is coupled by a first separating clutch (K1) to the front input shaft (9) and by a second separating clutch (K2) to the second intermediate gear (Z2) and the first intermediate gear (Z1) is permanently meshed with the output gear (13) so that the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2) and wherein
• the second axis of rotation (2) rotatably supports a third intermediate gear (Z3) which is permanently meshed with a fourth intermediate gear (Z4) which is rotatable about the first axis of rotation and fixedly connected with the first intermediate gear (Z1), and wherein
• the third intermediate gear (Z3) can be optionally coupled via a third separating clutch (13) to the rear input shaft (10) and via a fourth separating clutch (K4) to a fifth intermediate gear (Z5) which is rotatable about the second axis of rotation (2) and permanently meshed with a front input gear (21) non-rotatably situated upon the front shaft (9),
• the reduction ratio formed between the third and the fourth intermediate gear (Z3, Z4) being smaller than the reduction ratio formed between the rear input gear (14) and the second intermediate gear (Z2) so that the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2) and optionally with a first ratio step and a second ratio step.

A propulsion system for a ship, comprising:

• a front and a rear propelling engines (M1, M2) coupled via a gear system (6) to a ship output shaft (7),
• a front input shaft (9) of the gear system having a first axis of rotation (1) and allocated to propelling engine (M1),
• a rear input shaft (10) having a second axis of rotation (2) and allocated to the rear propelling engine (M2), and
• a gear output shaft (11) having a third axis of rotation (3) and allocated to the ship output shaft (7),
• said ship output shaft (7) extending below the rear propelling engine (M2),
• the second axis of rotation (2) being disposed above the first axis of rotation (1) and
• the first axis of rotation (1) being disposed above the third axis of rotation (3), wherein
• the gear system (6) has
• an input gear (14), mounted for rotation by the rear input shaft (10) and permanently meshed with a first intermediate gear (Z2) coaxial with the first axis of rotation (1) and
• an output gear (13), mounted for rotation by the gear output shaft (11) and meshed with a second intermediate gear (Z1) mounted about the first axis of rotation (1) so as to maximize the vertical axial distance the rear input shaft (10) and the gear output shaft (11) and wherein
• the first intermediate gear (Z1) is coupled by a first separating clutch (K1) to the front input shaft (9) and by a second separating clutch (K2) to the second intermediate gear (Z2) and the first intermediate gear (Z1) is permanently meshed with the output gear (13) so that the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2), and wherein
• about a fourth axis of rotation (4), which is horizontally offset in relation to the first and the third axes of rotation (1, 3) and is disposed, in a vertical direction between the first and the third axes of rotation, a reversing gear (22) is rotatably supported which can optionally be coupled by mean of a fifth separating clutch (K5) to a sixth intermediate gear (Z6) and by mean of a sixth separating clutch (K6) to a seventh intermediate gear (Z7),
• the reversing gear (22) being permanently meshed with the output gear (13),
• the sixth intermediate gear (Z6) being permanently meshed with the second intermediate gear (Z2) and
• the seventh intermediate gear (Z7) being permanently meshed with the front input gear (21) non-rotatably placed upon the front input shaft (9) so that
• the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2) and this optionally clockwise and counterclockwise.

A propulsion system for a ship, comprising:

• a front and a rear propelling engines (M1, M2) coupled via a gear system (6) to a ship output shaft (7),
• a front input shaft (9) of the gear system having a first axis of rotation (1) and allocated to propelling engine (M1),
• a rear input shaft (10) having a second axis of rotation (2) and allocated to the rear propelling engine (M2), and
• a gear output shaft (11) having a third axis of rotation (3) and allocated to the ship output shaft (7),
• said ship output shaft (7) extending below the rear propelling engine (M2),
• the second axis of rotation (2) being disposed above the first axis of rotation (1) and
• the first axis of rotation (1) being disposed above the third axis of rotation (3), wherein
• the gear system (6) has
• an input gear (14), mounted for rotation by the rear input shaft (10) and permanently meshed with a first intermediate gear (Z2) coaxial with the first axis of rotation (1) and
• an output gear (13), mounted for rotation by the gear output shaft (11) and meshed with a second intermediate gear (Z1) mounted rotating about the first axis of rotation (1) so as to maximize the vertical axial distance between the rear input shaft (10) and the gear output shaft (11) and wherein
• the first intermediate gear (Z1) is coupled by a first separating clutch (K1) to the front input shaft (9) and by a second separating clutch (K2) to the second intermediate gear (Z2) and the first intermediate gear (Z1) is permanently meshed with the output gear (13) so that the ship output shaft (7) can be optionally actuated by the front and the rear propelling engine (M1, M2), wherein
• for rotation about the first axis of rotation (1) are rotatably supported by the front input shaft (9),
• a front input gear (21), and
• an intermediate gear (Z2), wherein
• the intermediate gear (Z2) is permanently meshed with a rear input gear (4) disposed upon the rear input shaft (10), wherein
• upon a fourth axis of rotation (4) is rotatably supported a reversing gear (22) which can be optionally coupled by means of a rear separating clutch (K5) to another rear intermediate gear (Z6) and by mean of a front separating clutch (K6) to one other front intermediate gear (Z7) and wherein
• the reversing gear (22) is permanently meshed with the output gear (13), wherein
• the other rear intermediate gear (Z6) is permanently meshed with the intermediate gear (Z2) and the other front intermediate gear (Z7) is permanently meshed with the front input gear non-rotatably supported upon the front input shaft (9) so that
• the ship output shaft can be optionally actuated in opposite directions of rotation and optionally by front and the rear propelling engine.