{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "An airfoil (78) includes pressure and suction side walls (86, 88) that extend in a chord-wise direction between leading and trailing edges (82, 84). The pressure and suction side walls (86, 88) also extend in a radial direction to provide an exterior airfoil surface. A cooling passage (106, 107…",
  "path": "/patents/1432811",
  "publishedAt": "2025-12-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B22C13/12",
    "RTX CORP [US]"
  ],
  "textContent": "An airfoil (78) includes pressure and suction side walls (86, 88) that extend in a chord-wise direction between leading and trailing edges (82, 84). The pressure and suction side walls (86, 88) also extend in a radial direction to provide an exterior airfoil surface. A cooling passage (106, 107, 109) that has an hourglass shape is arranged between the pressure and suction walls (86, 88). The cooling passage has a first width (W) in the chord-wise direction near the suction side wall (88), a second width (W) in the chord-wise direction near the pressure side wall (86), and a third width (W) between the pressure and suction side walls (86, 88). The third width (W) is smaller than the first and second widths (W, W).",
  "title": "AIRFOIL COOLING PASSAGES HAVING HOURGLASS SHAPE"
}