Adjustable non-piloted air blast fuel nozzle
An apparatus is described for atomizing fuel in air and for injecting the fuel and air into an air stream at a first angle phi with respect to a first longitudinal axis which is adjustable over a predetermined angular range comprising: a support flange for mechanically supporting a fuel supply tube and a first sheath, a nozzle tip body spaced a predetermined distance from the support flange and having an air inlet and a fuel inlet and an outlet for expelling atomized fuel outward from and along a second longitudinal axis of the nozzle tip body, the fuel inlet concentric with a pivot axis of the nozzle tip body, the nozzle tip body pivot axis positioned transverse to the first and second longitudinal axes, the fuel supply tube having a first end adjustably connected to the fuel inlet of the nozzle tip body to supply fuel thereto and to support and hold the nozzle tip body with its second longitudinal axis at the angle within the predetermined angular range by positioning the nozzle tip body around the pivot axis, the first longitudinal axis passing through the support flange and through the nozzle tip body, an internal air cap having an outer surface with portions thereof conforming to the surface of revolution, the outer surface surrounding the nozzle tip body and attached thereto to direct air through the nozzle tip body via the air inlet, the first sheath having a cylindrical shape concentric with the first longitudinal axis, having a slot opening for admitting air inside the sheath, the sheath extending a predetermined distance from the support flange, an external air cap having an inside surface with portions thereof conforming to the surface of revolution and having a first opening for mating with an opening at the end of the sheath and a second opening to permit the nozzle tip body to expel atomized fuel at positions within the predetermined angular range about the pivot axis.
- Assignee:
- Allied-Signal Inc., Morristown, NJ
- Patent Number(s):
- US 4761959
- OSTI ID:
- 7018205
- Resource Relation:
- Patent File Date: Filed date 2 Mar 1987
- Country of Publication:
- United States
- Language:
- English
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