{
  "$type": "site.standard.document",
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  "description": "There is provided a blower system 400 for a gas turbine engine 10. The blower system 400 comprises: a rotor assembly 420, an airframe port 452 and a routing-control valve 46. The rotor assembly 420 is configured to be mechanically coupled to a spool 440 of the gas turbine engine 10. The airframe…",
  "path": "/patents/1397213",
  "publishedAt": "2024-08-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B64D13/02",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "There is provided a blower system 400 for a gas turbine engine 10. The blower system 400 comprises: a rotor assembly 420, an airframe port 452 and a routing-control valve 46. The rotor assembly 420 is configured to be mechanically coupled to a spool 440 of the gas turbine engine 10. The airframe port 452 is configured to receive and discharge air to an airframe system 450. The routing-control valve 46 comprises: a primary channel 460 for bidirectional flow between the rotor assembly 420 and the airframe port 452; a primary valve member 480 configured to open and close the primary channel 460; and an auxiliary channel 461 branched from the primary channel 460. The auxiliary channel 461, 462 is configured to bypass the primary valve member 480 for: a first auxiliary flow from the airframe port 452 to the rotor assembly 420; or a second auxiliary flow for purging air from the rotor assembly 420 to a discharge port 422. The blower system 400 is configured to operate in an engine drive mode in which air received from the airframe port 452 drives a rotor 410 of the rotor assembly 420 to rotate the spool 440, and in a blower mode in which the spool 440 drives the rotor 410 to discharge air to the airframe port 452.",
  "title": "BLOWER SYSTEM"
}