Fuel lance for the combustion chamber of a gas turbine
US4761958A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1985 |
| Grant date | Aug 9, 1988 |
| Priority date | — |
| Expiry date | Nov 25, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2210/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Self-excited vibrations can occur in the combustion chambers of gas turbines, which vibrations are due to modulation of the quantity of gaseous fuel or fuel/air mixture as the fuel is injected through a nozzle and into the combustion chamber. The modulation results from pressure fluctuations that occur in the plane of the nozzle. The new fuel lance simultaneously permits both de-coupling of the fuel line in order to avoid combustion chamber vibrations and the possibility of fuel quantity control. The fuel lance comprises an adjustable throttle body that is provided with fuel passage openings and a plunger, the penetration depth of which plunger relative to that of the throttle body is a measure of the fuel quantity flowing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.