Ship drive with a driving engine and a directly driven propeller shaft
US6033271A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Apr 21, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H23/321
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ship propulsion system in which the ship's propeller is connected with its propeller shaft directly to a drive mechanism. A thrust bearing in the drive mechanism receives directly the thrust of the propeller shaft. An auxiliary drive with an electrical machine is operable selectively as a motor or as a generator, and a coupling is provided between the electrical machine and transmission linkage in the auxiliary drive. A gear on the transmission surrounds the propeller shaft, and a flexible coupling connects the transmission to the propeller shaft. Mounted on a separate section of the propeller shaft between the transmission and the drive mechanism, is a shiftable coupling which is free of play and transmits torque from the drive mechanism to the propeller shaft as well as the thrust of the propeller shaft. An auxiliary thrust bearing is connected to the shiftable coupling and is actuated when the ship is in auxiliary or emergency operation during which the propeller shaft has a reduced thrust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.