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US 9,435,262 B2Granted
Fuel nozzle having an inner tube and an outer tube engaged with the inner tube
AssigneeSiemens Aktiengesellschaft
InventorsOlga Deiss, Berthold Köstlin, Jaap Van Kampen
Life of this patent
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Abstract
A fuel nozzle (2) for two fuels, with an inner pipe (5) with radially oriented outlet openings (7) for a first fuel and with an outer pipe (6), surrounding the inner pipe (5), with axially oriented outlet openings (10) for a second fuel; an axially extending groove (18) on an outer surface of the inner pipe (5) and a projection (19) inward from the outer pipe which engages in the groove (18) as an anti-torsion device (17) and which is arranged between two axial outlet openings (10). Alternative groove and projection configurations are disclosed.
Claims9
A fuel nozzle for two fuels, comprising:
- an inner tube for providing a first fuel, the inner tube having radially oriented discharge openings;
- an outer tube for providing a second fuel and encompassing the inner tube, the outer tube defining a lobe mixer having axially oriented discharge openings;
- at least one axially extending groove on an outer surface of the inner tube;
- and
- wherein the lobe mixer defines at least one projection extending inward to engage the inner tube in the at least one axially extending groove to define an anti-rotation device that prevents rotation of the inner tube and the outer tube relative to each other, wherein the at least one projection is arranged between two of the axial discharge openings, and the projection is an impressed or deep drawn section of the outer tube or is a rounded portion of the outer tube.
2 more elements
Dependencies are inferred from the claim text.