Variable pitch propeller control system
US6422816B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Maintenance requirements on a variable pitch propeller control system are minimized by eliminating the need for mechanical elements, such as a flyweight, mechanism in a secondary control for the variable pitch propeller. The system includes a secondary control (40) operating a pitch change mechanism (24) in response to the existence of at least one undesirable propeller condition and includes a target (34), (38) along with a target pickup (32), (36) for sensing the target (34), (38) and providing information to a function generator (76) which in turn provides information to a logic device (78), (80), (82), (84), (86), (88), (94) which in turn is connected to the pitch change mechanism (24) for operating the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.