Rolls-Royce Deutschland Ltd & Co. Kg

Rolls-Royce Deutschland Ltd & Co Kg

Ruud Eggels

Carsten Clemen

Miklos Gerendas

Max Staufer

The proposed solution relates to a nozzle assembly for a combustor of an engine, having at least one nozzle for injecting hydrogen into a combustion chamber of the combustor, wherein the nozzle has a nozzle main body which extends along a nozzle longitudinal axis and a nozzle head at one end of the nozzle main body and comprises a first air conduit, a fuel duct for the hydrogen to be injected, and a second air conduit. The fuel duct is arranged with a fuel exit opening for the hydrogen to be injected into the combustion chamber between the first and second air conduits with their first and second air exit openings, in relation to a radial direction running perpendicularly to the nozzle longitudinal axis. Also according to the invention, at least the second air conduit, which is situated radially further outwards, is designed and provided to provide an non-swirled air flow into the combustion chamber and the fuel duct is designed and provided to provide a non-swirled flow of hydrogen into the combustion chamber.

Nozzle assembly having swirl-free air and hydrogen inflow

A combustion chamber assembly group includes a nozzle providing a fuel-air mixture at a nozzle exit opening. An end of a fuel guiding channel is bordered at the nozzle exit opening by a flow-off edge located radially outside, and an air guiding element of an air guiding channel of the nozzle located radially outside projects with respect to this flow-off edge in the axial direction with respect to a nozzle longitudinal axis such that: a reference angle present between the nozzle longitudinal axis and a straight boundary line extending through a point at the flow-off edge and tangentially to the axially projecting air guiding element, and/or a reference angle present between the nozzle longitudinal axis and a straight boundary line extending through a point at the flow-off edge and a point of the air guiding element that projects maximally beyond the flow-off edge in the axial direction is &#x2264;50&#xb0;.

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Berlin, Germany

Ruud Eggels