Apparatus for preventing overspeed of a turbine drive means
US4518310A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Sep 3, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N7/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Apparatus associated with a component part of the drive system of a turbine assembly reduces the power applied to its drive rotor in a direct and substantially instantaneous response to the speed of its rotation rising to a predetermined level. A turbine starter for an engine embodying this apparatus comprises a housing for its rotor and the drive system of which it forms a part, a flow path for a gaseous fluid, delivered from a source, to power the rotor and a control device in connection with the drive system a component part of which moves radially thereof and, when its speed of rotation rises to a predetermined level, triggers a substantially simultaneous restriction of the flow path through which fluid can be applied to power the turbine rotor, thereby to produce a resulting reduction of the speed of rotation of the turbine drive system. If under such conditions the starter is engaged with a related engine, it will automatically disengage. The apparatus inherently and automatically prevents the occurrence of a speed of rotation of the turbine drive system which might induce self-destruction and explosive fragmentation of its housing and/or its component parts. The construction…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.