Apparatus for adjusting and locking pitch of a variable pitch propeller on a ship
US4643643A · kind A · utility
9Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | May 14, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H3/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for adjusting and locking the pitch of a variable pitch propeller. Within a propeller shaft, a hydraulic piston is provided which drives a rod, a plate, and levers to rotate the propeller blades in, and with respect to, the hub of the propeller. The root of the propeller within the hub has a conical portion which has a mating conical ring thereabout. This conical ring is engaged and locked into place with the conical portion of the propeller root and the propeller hub by hydraulic oil pressure, once the optimum pitch of the propeller blades is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.