Outboard motor tilt actuator with shock damping feature
US7513809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jul 16, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H20/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tilt actuator for an outboard motor wherein shocks acting on the actuator are initially dissipated at a first damping rate and then at a higher damping rate near the end-of-stroke of the actuator's piston. The tilt actuator comprises a cylinder, a piston, a piston rod and a damper member, the latter being cooperative with the piston in a first position to at least partially block at least one of plural damping passages in the piston thereby to restrict flow of fluid from the first chamber to the damping passages in the piston and in a second position that allows full damping flow of fluid to the inlet openings of the damping passages from the first chamber to the damping passages in the piston during movement of the piston in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.