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US 4,258,544 AGranted
Dual fluid fuel nozzle
AssigneeCaterpillar Tractor Co.
InventorsDaniel E. Gebhart, Brace C. Smith, D. Craig Young, Jerry A. Damerell
Life of this patent
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Abstract
A fuel nozzle for a gas turbine engine permits alternate use of different fluid fuels such as gaseous or liquid fuels without intermixing until delivery of the fuel to the combustion chamber. The nozzle provides concentric fuel delivery passages and allows for differing rates of expansion between the two passages.
Claims14
A fluid fuel nozzle assembly for a gas turbine engine having a combustion chamber mounted in an engine case, the nozzle assembly comprising:
- elongated inner passage means for communication of a first fluid fuel to the combustion chamber;
- elongated outer passage means for communication of a second fluid fuel to said combustion chamber;
- mounting means for sealingly associating the outer passage means about the inner passage means and allowing the inner and outer passage means to thermally expand at differing rates while retaining gas tight integrity;
- and
- said inner passage means including an elongated conduit having a helical portion and said mounting means including a cylindrical portion substantially surrounding said helical portion.
2 more elements
A fluid fuel nozzle assembly comprising:
- elongated inner passage means for communication of a first fluid fuel therethrough;
- elongated outer passage means for communication of a second fuel therethrough;
- means for associating the outer passage means about the inner passage means while allowing the outer passage means to expand at a different rate than the inner passage means;
- said inner passage means including an elongated conduit having a helical portion;
- and
- the mounting means having a cylindrical portion substantially surrounding said helical portion.
3 more elements
Dependencies are inferred from the claim text.