Marine propulsion system
US11052983B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2023/323
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There is disclosed a marine propulsion system for a shaft-driven boat. The system includes a recess formed in the hull of the boat, and a drive cassette. The drive cassette includes: a housing; a static tube extending rearwardly from the housing and fixed relative thereto; and at least one drive shaft extending through the static tube and into the housing. The drive shaft is supported for rotation within the static tube by at least one shaft bearing, and is rotatably supported within the housing by thrust bearings. The static tube, the drive shaft, the or each shaft bearing, and the thrust bearings are all coaxially aligned with one another. The housing and the recess are mutually configured such that the housing may be engaged within the recess to install the drive cassette within the drivetrain of the boat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.