{
  "$type": "site.standard.document",
  "description": "There is disclosed an exhaust nozzle 20 for a gas turbine engine 10, the exhaust nozzle 20 comprising a frame 30 extending along a longitudinal axis 50. The exhaust nozzle 20 comprises a convergent petal 32 pivotably attached at a convergent pivot point 36 to the frame 30 and extending axially…",
  "path": "/patents/1422305",
  "publishedAt": "2023-06-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D17/18",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "There is disclosed an exhaust nozzle 20 for a gas turbine engine 10, the exhaust nozzle 20 comprising a frame 30 extending along a longitudinal axis 50. The exhaust nozzle 20 comprises a convergent petal 32 pivotably attached at a convergent pivot point 36 to the frame 30 and extending axially downstream and radially inward from the frame 30, a follower roller 42 fixed to the convergent petal 32 on a radially outer side of the convergent petal 32, and a cam 46 defining a working surface 48 configured to engage the follower roller 42 to react a force from the convergent petal 32. The cam 46 is movable along a travel in an axial direction to actuate radial movement of the follower roller 42 to pivot the convergent petal 32. The cam 46 defines a concave working surface 48 such that a contact angle between the follower roller 42 and the cam 46 varies along the travel to thereby vary a radial component of the force reacted by the cam 46.",
  "title": "AN EXHAUST NOZZLE FOR A GAS TURBINE ENGINE"
}