{
  "$type": "site.standard.document",
  "description": "A fuel nozzle/swirler assembly (58) includes a venturi (108, 108a) including a heat shield retaining wall (164, 164a). A backplate (146, 146a) is connected to the venturi (108, 108a) and includes a plurality of purge orifices (186, 186a) extending through the backplate (146, 146a). A ceramic matrix…",
  "path": "/patents/1386673",
  "publishedAt": "2026-03-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02C7/22",
    "GEN ELECTRIC [US]"
  ],
  "textContent": "A fuel nozzle/swirler assembly (58) includes a venturi (108, 108a) including a heat shield retaining wall (164, 164a). A backplate (146, 146a) is connected to the venturi (108, 108a) and includes a plurality of purge orifices (186, 186a) extending through the backplate (146, 146a). A ceramic matrix composite (CMC) heat shield (148, 148a) includes a heat shield attachment wall (166, 166a) engaged between the heat shield retaining wall (164, 164a) of the venturi (108, 108a) and the backplate (146, 146a), and a seal member (176, 196, 200, 202, 204) is arranged between the backplate (146, 146a) and the CMC heat shield (148, 148a). The plurality of purge orifices (186, 186a) are arranged between the seal member (176, 196, 200, 202, 204) and the venturi (108, 108a) and provide a flow of purge air (82c) therethrough to flow through a radial gap (178). The seal member (176, 196, 200, 202, 204) provides a force against the CMC heat shield (148, 148a) to axially engage the heat shield attachment wall (166, 166a) of the CMC heat shield (148, 148a) against the heat shield retaining wall (164, 164a) of the venturi (108, 108a).",
  "title": "FUEL NOZZLE/SWIRLER ASSEMBLY FOR A GAS TURBINE ENGINE"
}