Marine transmission with synchronizer to shift into high speed gear
US9878768B1 · kind B1 · utility
3Cited by
50References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | May 13, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/0034
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A marine transmission includes a synchronizer on a counter rotating shaft to shift into a high speed gear. The synchronizer includes friction surfaces on both sides of the gear body for the high speed gear. The high speed gear mesh is helical and generates axial force that enhances the torque carrying capacity of synchronizing friction surfaces, thereby enabling the shifting into the high speed gear without torque interrupt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.