{
  "$type": "site.standard.document",
  "description": "A transition piece assembly for a gas turbine includes a transition duct having one end adapted for connection to a gas turbine combustor and an opposite end adapted for connection to a first turbine stage, and a pair of side panels. The assembly also includes an impingement sleeve 122 surrounding…",
  "path": "/patents/966322",
  "publishedAt": "2014-12-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D25/12",
    "GEN ELECTRIC [US]"
  ],
  "textContent": "A transition piece assembly for a gas turbine includes a transition duct having one end adapted for connection to a gas turbine combustor and an opposite end adapted for connection to a first turbine stage, and a pair of side panels. The assembly also includes an impingement sleeve 122 surrounding the transition duct and establishing a cooling path therebetween. The impingement sleeve is formed with a plurality of rows of cooling holes 120 therein and a plurality of flow catcher devices 26 on an external surface of the impingement sleeve, each flow catcher device 26 comprising a scoop fixed to an outside surface of the impingement sleeve 122 about a portion of a respective one of said cooling holes 120 and having an open side defined by an edge of the scoop lying in a plane substantially normal to said outside surface. Each flow catcher device is arranged to face a direction of cooling air flow, such that said flow catcher devices 26 redirect said cooling air flow through said impingement sleeve 122 and onto said transition duct 10.",
  "title": "Aerodynamic devices for enhancing sidepanel cooling on an impingement cooled transition duct"
}