Starting system for a gas turbine and method of starting a gas turbine
US5172543A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1990 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Dec 26, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/275
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A starting system (10) for a gas turbine (24) in accordance with the invention includes an electric motor (14); and a clutch (20) having an input (18) for receiving torque from the electric motor when the electric motor is activated during starting of the turbine and an output (22) for rotating the gas turbine during starting of the turbine, the clutch having a torque transfer characteristic between the input and the output with no torque being transferred when a rotational speed of the input is below a set speed which is a fraction of a speed at which the gas turbine is self-sustaining in producing output torque and transferring torque above the set speed between the input and output with the set speed being chosen with respect to a power output characteristic of the electric motor as a function of speed of the motor which produces acceleration of the motor to self-sustaining speed while minimizing energy required for starting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.