Dual strut power transmission housing structure of a marine propulsion system
US11834144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2021 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Oct 17, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2020/323
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided herein is a marine propulsion apparatus including a prime mover having a drive shaft, a cowling enclosing the prime mover, first and second struts affixed to the cowling, where each of the struts have a leading portion, an interior belt void, and a trailing portion. The apparatus further includes a lower unit coupled to the distal ends of the struts, a sprocket rotatably disposed within the lower unit, a shaft rotatably coupled to the sprocket, a belt rotatably coupling the drive shaft to the sprocket, such that a first portion of the belt is disposed within the interior belt void of the first strut and a second portion of the belt is disposed within the interior belt void of the second strut. The apparatus further includes a thermal circuit (having a heat transfer fluid) extending from the cowling, through each of the struts, and into the lower unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.