Abstract: A transmission arrangement includes a first prime motor arrangement having a first gear shaft and a first gear wheel; and a second prime motor arrangement having a second gear shaft, and a second gear wheel. Where a first gear wheel arrangement includes the first gear wheel and is integrally formed with a first bevel gear wheel; the second gear wheel is integrally formed with a second bevel gear wheel; and a third bevel gear wheel is adapted to mesh with the first and second bevel gear wheels. The first bevel gear wheel, and second bevel gear wheel are fixed to the first and second gear shafts via their respective freewheel bearings; and both first and second gear shafts are sections of a single gear shaft. The gear shaft is supported in a first pivotal direction and fixedly supported in a second pivotal direction.

Abstract: An engine arrangement comprising a first assembly including a first piston in a first cylinder interconnected with a second assembly including a second piston in a second cylinder. Each of the first and second assemblies include an inlet valve for supplying a fuel mixture, and an outlet valve for removing exhaust gases. The first and second assemblies being adapted for cooperation with a gear unit to convert a translation movement into a rotary movement. The engine arrangement so includes two additional assemblies including a third piston in a third cylinder interconnected with a fourth piston in a fourth cylinder and associated valves. The two additional assemblies being adapted for cooperation with the gear unit to convert a translation movement into a rotary movement.