A drive assembly (1) for a marine propeller drive unit, said drive assembly (1) comprising two concentric drive shafts for carrying a respective propeller. A space between the drive shafts is lubricated with liquid lubricant pumped into the space by a pump. The outermost drive shaft (3) is provided with at least one protrusion (20) protruding radially inwards from an inner surface of the outer drive shaft (3). The inlet (17) of the secondary fluid channel (16) is provided in said at least one protrusion (20) at a first radial level (21) offset radially inwards from the inner surface of the outer drive shaft (3) such that liquid lubricant at said first radial level (21) is able to lubricate bearings (11) between the outermost drive shaft (3) and the innermost drive shaft (6).
A DRIVE ASSEMBLY FOR A MARINE DUAL-PROPELLER DRIVE UNIT
ANTRIEBSANORDNUNG FÜR EINE SCHIFFSANTRIEBSEINHEIT MIT ZWEI PROPELLERN
ENSEMBLE D'ENTRAÎNEMENT POUR UNITÉ D'ENTRAÎNEMENT MARINE À DOUBLE HÉLICE
2025-06-18
Patent
Electronic Resource
English
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |