Air blast fuel injection system
In order to enhance fuel injection efficiency, and particularly to atomize low fuel flows at high velocity with low fuel pressure, a fuel injection system for a combustor of a turbine engine has an air blast tube and a fuel supply tube. The air blast tube is mounted at an acute angle relative to a wall of the combustor and has a first end in communication with the combustor and a second, enlarged end disposed at an acute angle to an axis of the air blast tube in communication with a source of compressed air externally of the wall of the combustor. The air blast tube is operable to deliver compressed air from the source into the combustor. The fuel supply tube delivers fuel through a fuel supply orifice to a point at or near the first end of the air blast tube and has a first end in communication with the combustor through the fuel supply orifice and a second end in communication with a source of fuel externally of the wall of the combustor. With this arrangement, the fuel supply tube extends to a point communicating internally with the air blast tube but adjacent a discharge opening of the air blast tube to produce an enhanced atomized fuel/air mixture thereby. 11 figs.
- Assignee:
- Sundstrand Corp., Rockford, IL (United States)
- Patent Number(s):
- US 5277022; A
- Application Number:
- PPN: US 7-966903
- OSTI ID:
- 6990322
- Resource Relation:
- Patent File Date: 23 Oct 1992
- Country of Publication:
- United States
- Language:
- English
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