Method of operating a combustion chamber for a gas turbine engine

Patent · Tue May 05 00:00:00 EDT 1992

OSTI ID:5052394

Kester, J D; Redington, C P

This patent describes a method of operating a gas turbine engine in an aircraft, the engine having fuel nozzles disposed of a combustion chamber which regions are in flow communication with each other, the engine being operative at an idle power condition and a cruise power condition. It comprises: flowing fuel from all the nozzles of the fuel nozzles at the idle power condition and the cruise power condition; operating the combustion chamber with a local fuel/air ratio in a first region of the combustion chamber which is richer than the local fuel/air ratios in other regions of the combustion chamber at the idle power condition by flowing fuel from all of the fuel nozzles of the fuel nozzles with flow through at least one of the nozzles in communication with the first region being greater than the flow through the remainder of the nozzles to flow more fuel to the first region than to other regions of the combustion chamber; operating the combustion chamber with the same local fuel/air ratio in the first region of the combustion chamber and remaining regions of the combustion chamber at the cruise power condition by flowing the same amount of fuel to all regions of the combustion chamber by flowing fuel from all of the fuel nozzles of the fuel nozzles at the cruise power condition such that the flow through all of the fuel nozzles is the same.

• Assignee: United Technologies Corp., Hartford, CT (United States)
• Patent Number(s): US 5109664; A
• Application Number: PPN: US 7-597936
• OSTI ID: 5052394
• Resource Relation: Patent File Date: 8 Feb 1991
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
42 ENGINEERING
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FUEL SYSTEMS
NOZZLES
GAS TURBINE ENGINES
COMBUSTION CHAMBERS
AIRCRAFT
OPERATION
PROPULSION SYSTEMS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
330103* - Internal Combustion Engines- Turbine
421000 - Engineering- Combustion Systems
330603 - Vehicle Design Factors- Engine System
320201 - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace