| 摘要 |
A gas turbine engine fuel injector stem includes a single piece of material with a flange, a center body, a gas gallery, and a fluid passage. The flange includes a cylindrical shape, a plurality of mounting holes and a handle hole. The center body extends from a flange cap in the flange axial direction. The gas gallery is adjacent the center body and distal to the flange. The gas gallery includes a ring shape oriented transverse to the flange and includes a gallery opening. The fluid passage extends through the flange, center body, and gas gallery and is in flow communication with the gallery opening. |
| 主权项 |
1. A forged and machined fuel injector stem for a gas turbine engine, the fuel injector stem comprising:
a flange defining a plurality of mounting holes and a handle hole, the flange having a cylindrical shape with a base, a flange axis extending perpendicular to the base and defining an axial direction; a center body extending from the base of the flange in the axial direction of the flange, the center body having a solid shape with a rounded rectangle cross-section; a gas gallery connected to the center body distal to the flange, the gas gallery having a hollow cylinder shape with a gas gallery axis oriented crosswise to the flange axis, a hollow portion of the gas gallery hollow cylinder shape defining a gallery opening; a pilot body extending from the center body in a radial direction of the flange, the radial direction of the flange being transverse to the axial direction of the flange, wherein the center body and the pilot body form a t-shaped cross section; a pilot funnel connected to the pilot body, the pilot funnel defining a hollow cylinder shape with a pilot axis, the pilot funnel being offset from the gas gallery along the radial direction of the flange, the pilot axis being aligned with the gas gallery axis, a hollow portion of the pilot funnel hollow cylinder shape defining a pilot opening; a gas main passage extending through the flange, the center body, and the hollow portion of the gas gallery, the gas main passage being in flow communication with the gallery opening; a liquid main passage extending through the flange, the center body, and the hollow portion of the gas gallery, the liquid main passage being in flow communication with the gallery opening and being adjacent to the gas main passage; a gas pilot passage extending through the flange, the pilot body, and the hollow portion of the pilot funnel, the gas pilot passage being in flow communication with the pilot opening; and a liquid pilot passage extending through the flange, the pilot body, and the hollow portion of the pilot funnel, the liquid pilot passage being in flow communication with the pilot opening and being adjacent to the gas pilot passage, wherein the flange, the center body, the gas gallery, the pilot body, and the pilot funnel are forged and machined from a single workpiece. |
