Marine transmission actuation system
US7544110B1 · kind B1 · utility
14Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Oct 26, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/307
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator for a marine transmission uses four cavities of preselected size in order to provide four potential forces resulting from pressurized hydraulic fluid within those cavities. The effective areas of surfaces acted upon by the hydraulic pressure are selected in order to provide increased force to move the actuator toward a neutral position from either a forward or reverse gear position. Also, the relative magnitudes of these effective areas are also selected to provide a quicker movement into gear than out of gear, given a similar differential magnitude of pressures within the cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.