Siemens Aktiengesellschaft

Siemens Energy, Inc.

Thomas Hauser

Andreas Böttcher

Stephen A Ramier

Tobias Krieger

Patrick Lapp

Olga Deiss

Jens Kleinfeld

Sebastian Piegert

Christian Beck

Thomas Grieb

Simon Purschke

Patrick Ronald Flohr

Stefan Reich

Günther Walz

Christopher Grandt

Peter Möllenbeck

Karsten Von Schwander

Jürgen Buchheim

Matthias Chlebowski

Fabian Sander

Andreas Kreutzer

A fuel nozzle body having a rearward end and a front end with an outer tube which extends from the rearward end to the front end and has radial openings for a first fuel in the region of the front end, and an inner tube which is arranged concentrically to the outer tube and which opens in the region of the front end into a nozzle head, which has additional openings for a second fuel, wherein, in the region of the front end, the inner tube is guided in the outer tube by two fits which are arranged axially between the radial openings and the additional openings, and wherein the first fit closest to the radial openings is configured as a circumferential web around the inner tube, and wherein the second fit is configured with at least one interruption on the perimeter.

Fuel nozzle body

A burner assembly with a combustion chamber, a plurality of mixing ducts leading into the combustion chamber, where combustion air and introduced fuel are mixed. The mixing ducts are formed by mixing tubes extending axially through an annular space between a tubular outer wall, a tubular inner wall arranged radially at a distance from the outer wall, a ring-shaped end plate arranged upstream and a ring-shaped end plate arranged downstream. The end plates have through-openings, which accommodate and/or extend the mixing tubes, and the end plates have, both radially inside and outside, a circumferential edge extending in the direction of the annular space, with axial bores in the edge of the ring-shaped end plate arranged downstream. The axial bores extend from the annual space into the end plate, and at least one opening is for removing cooling air, the opening branching from the axial bore.

Bruner assembly

A method for replacing a swirler () of a premixing or main burner of a burner arrangement (), wherein the swirler () is connected to a distributor flange plate () of the burner arrangement () via a fuel gas feed pipe () and a fuel oil feed line () accommodated therein. The fuel gas feed line and the fuel oil feed line are severed to enable removal of the separated end portion of the fuel gas feed line. A sleeve is installed to replace the removed end portion.

Method for replacing a swirler

A fuel nozzle assembly () is presented for a gas turbine engine (). The fuel nozzle assembly () includes a rocket unit () and a swirler () with an aft end () in threaded engagement with a forward end () of the rocket unit (). The fuel nozzle assembly () may include an oil tip () including a clocking feature with a mechanical constraint to orient the oil tip () at a predetermined angular orientation () relative to the swirler (). The fuel nozzle assembly () may include one or more gas stage inlets (), one or more oil stage inlets (), and a flexible hose () to direct the oil to a plurality of rocket units ().

Fuel nozzle assembly with removable components

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Hönow, Germany

Thomas Hauser