公开(公告)号：US11300293B2

公开(公告)日：2022-04-12

申请号：US16903456

申请日：2020-06-17

Applicant: ROLLS-ROYCE plc

Inventor： Luca Tentorio ,  Juan Carlos Roman Casado ,  Giacomo Di Chiaro ,  Jonathan Knapton ,  Filippo Zambon ,  Radu Irimia

IPC: F23R3/28 ,  F23R3/14 ,  F23R3/34

Abstract: A fuel injector comprising a first air swirler passage and a second air swirler passage extending axially through the fuel injector and arranged to direct air through the fuel injector, a splitter arranged between the first air swirler passage and the second air swirler passage and comprising a first splitter surface having a first divergent portion which is divergent in the downstream direction, a second splitter surface located radially inward of the first splitter surface and having a second divergent portion which is divergent in the downstream direction, a third splitter surface located radially inward of the first and second splitter surface, and a first connecting surface extending between the second and third splitter surfaces, wherein a first cavity is formed between the first and second splitter surfaces, and the second divergent portion comprises at least one opening in fluid communication with the first cavity.

公开(公告)号：US11530817B2

公开(公告)日：2022-12-20

申请号：US16689292

申请日：2019-11-20

Applicant: ROLLS-ROYCE plc

Inventor： Luca Tentorio ,  Juan Carlos Roman Casado ,  Giacomo Di Chiaro ,  Jonathan Knapton ,  Filippo Zambon ,  Radu Irimia

IPC: F23R3/60 ,  F23R3/00

Abstract: A combustor including a combustor lining, a tile including a recess at an end defining a receiving surface, and a tile holder. The tile holder includes an elongate retaining head having a combustor surface configured to face a combustion chamber of a combustor, and a securing portion extending from the head, the securing portion being configured to secure the head to a combustor lining. The retaining head extends laterally with respect to an elongate direction of the retaining head to define a retaining surface laterally adjacent to the securing portion; and the retaining surface cooperates with the receiving surface of the tile to retain the tile against the combustor lining. There is also disclosed a tile holder and a tile.

公开(公告)号：US11428412B2

公开(公告)日：2022-08-30

申请号：US16878927

申请日：2020-05-20

Applicant: ROLLS-ROYCE plc

Inventor： Luca Tentorio ,  Juan Carlos Roman Casado ,  Giacomo Di Chiaro ,  Jonathan Knapton ,  Filippo Zambon ,  Radu Irimia

IPC: F23R3/28 ,  F23R3/14

Abstract: A fuel spray nozzle arrangement for a combustor, the fuel spray nozzle arrangement comprising a fuel spray nozzle connected to a feed arm, wherein the feed arm comprises an aerofoil.

公开(公告)号：US11339967B2

公开(公告)日：2022-05-24

申请号：US16903479

申请日：2020-06-17

Applicant: ROLLS-ROYCE plc ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Inventor： Luca Tentorio ,  Juan Carlos Roman Casado ,  Giacomo Di Chiaro ,  Jonathan Knapton ,  Filippo Zambon ,  Radu Irimia ,  Imon-Kalyan Bagchi ,  James Robins

IPC: F23R3/14 ,  F23R3/34

Abstract: A fuel injector including: a plurality of air swirler passages; at least one fuel supply passage arranged to supply fuel into at least one of the air swirler passages; and at least one cavity separating an exterior of the fuel supply passage from a body of the fuel injector; wherein the cavity is at least partially filled with a thermally insulating material.

公开(公告)号：US11280493B2

公开(公告)日：2022-03-22

申请号：US16689300

申请日：2019-11-20

Applicant: ROLLS-ROYCE plc ,  ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Inventor： Luca Tentorio ,  Juan Carlos Roman Casado ,  Giacomo Di Chiaro ,  Jonathan Knapton ,  Filippo Zambon ,  Radu Irimia ,  Imon-Kalyan Bagchi ,  James Robins ,  Tomasz Stankowski

IPC: F23R3/14 ,  F23R3/28 ,  F23R3/30 ,  F23D11/10 ,  F23D11/38 ,  F23R3/34

Abstract: A fuel spray nozzle including a primary atomizer to discharge a flow of swirled atomised fuel along and around a fuel spray nozzle axis. The primary atomiser includes outer air swirler disposed radially outwardly of a fuel pre-filmer channel. A secondary atomiser disposed around the primary atomiser includes secondary inner air swirler to swirl flow along an inner air channel. The secondary inner air swirler disposed radially inwardly of a secondary fuel pre-filmer channel of the secondary atomiser. A primary outer air channel defined between the primary outer swirler and the secondary inner swirler. The secondary inner air swirler include splitter wall to separate swirling flow in the secondary inner channel from the primary flow of atomised fuel. The secondary inner air swirler includes primary cap wall integral with and extending radially inwardly from the splitter wall to direct flow from the primary outer channel inwardly towards the fuel spray.