Adjusting mechanism for variable pitch watercraft propellers
US4648847A · kind A · utility
5Cited by
3References
3Claims
0Family size
Inventor
Key dates
| Filing date | Mar 13, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mechanical linkage for adjusting propeller blades includes a two-armed lever arranged on the downstream side of the hub of a variable pitch propeller driven by a driving engine by means of a drive shaft. The push rod of a linear motor connected to an energy source moves one arm of said adjusting lever. The other arm of the adjusting lever is articulated to a non-rotatable adjusting sleeve which is coupled via a thrust bearing to a rotary intermediate adjusting member. Adjusting rods are fixed to the intermediate adjusting member and are guided in the hub and accomplish the adjustment of the propeller blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.