{
  "$type": "site.standard.document",
  "description": "A rocket engine chamber (10) has a back structure (20) and a heat exchanger structure (18) located radially inwardly of the back structure (20). The heat exchanger structure (18) has a plurality of integrally formed cooling passageways with adjacent ones of the passageways (22) having a common…",
  "path": "/patents/1066409",
  "publishedAt": "2006-06-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02K9/64",
    "UNITED TECHNOLOGIES CORP [US]"
  ],
  "textContent": "A rocket engine chamber (10) has a back structure (20) and a heat exchanger structure (18) located radially inwardly of the back structure (20). The heat exchanger structure (18) has a plurality of integrally formed cooling passageways with adjacent ones of the passageways (22) having a common sidewall structure (28). Each passageway (22) has a top section (30) which forms the wall (24) that contacts the hot gases. The top section (30) is formed by a wall structure having an inner and outer surface formed by an arc of a circle and a substantially constant wall thickness.",
  "title": "Cooled rocket chamber wall"
}