{
  "$type": "site.standard.document",
  "description": "A gas turbine engine includes: a main passage through which compressed air extracted from a compressor is guided to a bearing; and an oil supply device that supplies oil to the main passage. The oil supply device includes: a pressure reducer disposed at the main passage; an oil tank including a…",
  "path": "/patents/1406885",
  "publishedAt": "2026-01-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D25/16",
    "KAWASAKI HEAVY IND LTD [JP]"
  ],
  "textContent": "A gas turbine engine includes: a main passage through which compressed air extracted from a compressor is guided to a bearing; and an oil supply device that supplies oil to the main passage. The oil supply device includes: a pressure reducer disposed at the main passage; an oil tank including a container and a divider that is movable and divides an internal space of the container into an oil chamber storing the oil and an air chamber; an extruder including a cylinder and a piston that divides an internal space of the cylinder into a first chamber and a second chamber; a switching mechanism that switches between a first state and a second state, the first state being a state where the first chamber communicates with a low-pressure space whose pressure is lower than pressure in the air chamber, and the second chamber communicates with the oil chamber, the second state being a state where the first chamber communicates with a high-pressure space whose pressure is higher than pressure in the downstream passage, and the second chamber communicates with the downstream passage; and a controller that controls the switching mechanism.",
  "title": "GAS TURBINE ENGINE"
}