Lean staged combustion assembly

Patent · Tue Mar 31 04:00:00 EST 1992

OSTI ID:5182448

Sabla, P E; Dodds, W J; Tucker, T M

This patent describes a lean staged combustion assembly. It comprises: means for channeling compressed air including a pilot portion and a main portion. This patent also describes an annular combustor outer liner having an upstream end and a downstream end; an annular combustor inner liner having an upstream end and a downstream end and spaced from the outer liner; means for obtaining pilot stage combustion of a fuel-air pilot mixture for generating pilot stage combustion gases between the inner and outer liners using the pilot portion of compressed air channeled to the combustor by the channeling means, a pilot combustor first liner having an upstream end and a downstream end and spaced from the outer liner to define a first pilot combustion zone; a pilot combustor second liner having an upstream end and a downstream end and spaced from the inner liner to define a second pilot combustion zone; circumferentially spaced first fuel injectors and corresponding first air swirlers extending between the first and outer liners at the upstream ends thereof; and circumferentially spaced second fuel injectors and corresponding second air swirlers extending between the second and inner liners at the upstream ends thereof.

• Assignee: General Electric Co., Cincinnati, OH (United States)
• Patent Number(s): US 5099644; A
• Application Number: PPN: US 7-504365
• OSTI ID: 5182448
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
ANNULAR SPACE
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
COMPRESSION
CONFIGURATION
DISPERSIONS
EQUIPMENT
FLUID FLOW
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
GAS FLOW
MACHINERY
MIXTURES
NOZZLES
OXIDATION
SPACE
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY