Exhaust structure of outboard motor
US9022823B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Exhaust gas from an engine passes through a lower unit, and passes through a propeller boss coupled to a propeller shaft to be discharged into water. A stopper is provided at a rear end portion of a gear case of the lower unit, and a bush is inserted into and attached to an inner surface of the stopper. An inside diameter of the bush is set to substantially the same diameter as an outside diameter of a front end portion of the propeller boss, and the bush and the propeller boss are disposed by being overlapped with each other in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.