Rolls-royce Corporation

Richard Edward Mellor

Ian Murray Garry

Frederic Witham

Adam P Chir

Mark Glover

Redland Sanders

A powder deposition apparatus has a build plate, a powder source, a recoater arm, and an energy beam. The recoater arm is formed from ferromagnetic material. The recoater arm is arranged to deliver a layer of powder from the powder source across the working surface of the build plate prior to the energy beam fusing a predetermined portion of the delivered powder layer. The recoater arm comprises a magnetic portion.

Powder deposition apparatus and a method of using the same

A fuel injector provided for gas turbine engine has a nozzle including pilot fuel and mains fuel discharge orifice's for respectively spraying pilot and mains fuel flows into a combustor of the engine. The injector further has a feed arm extending to the nozzle for feeding fuel to the pilot and mains discharge orifices from pilot and mains supplies respectively. The nozzle and the feed arm contain one or more pilot passages for flow of the pilot fuel flow from the pilot supply to the pilot discharge orifice and one or more mains passages for flow of the mains fuel flow from the mains supply to the mains discharge orifice. The nozzle and the feed arm contain a plurality of the pilot passages and/or a plurality of the mains passages. The pilot and the mains passages intertwine repeatedly, and are both smoothly curved as they intertwine around each other.

Fuel injector with interweaved pilot and mains passages

A coupling unit has an electrical-connector for push-fit electrical connection in the coupling unit axial direction to a mating electrical-connector of a unit. The electrical-connector and mating electrical-connector have engagement formations permitting push-fit connection only when the electrical-connector is in predetermined rotational alignment about axial direction with the mating electrical-connector. The coupling unit has a backshell in fixed rotational relationship with the electrical-connector and extending rearwardly therefrom to house, in use, one or more leads extending rearwardly from the electrical-connector. The coupling unit has coaxial actuation sleeve surrounding the backshell. The actuation sleeve axially moves to effect push-fit connection. The backshell and actuation sleeve are operatively connected so: actuation sleeve movement in forward axial direction towards the unit is resisted by electrical-connector contact with the mating electrical-connector to produce backshell rotation, thereby aligning the electrical-connector with the mating electrical-connector and allowing push-fit connection of the electrical-connector to the mating electrical-connector.

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Birmingham, United Kingdom

Richard Edward Mellor