{
  "$type": "site.standard.document",
  "description": "A rocket engine suitable for using for an educational program uses a liquid phase propellant (102A) having a predetermined boiling point and a heating substance (102B) having a temperature higher than the boiling point. The engine has an inner wall (103B) having a circumferential surface; an outer…",
  "path": "/patents/1089068",
  "publishedAt": "2004-03-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02K9/42",
    "NAT SPACE DEV AGENCY [JP]"
  ],
  "textContent": "A rocket engine suitable for using for an educational program uses a liquid phase propellant (102A) having a predetermined boiling point and a heating substance (102B) having a temperature higher than the boiling point. The engine has an inner wall (103B) having a circumferential surface; an outer wall (103D) surrounding the inner wall (103B), the outer wall (103D) having an interior surface spaced from the circumferential surface of the inner wall (103B) by a predetermined distance such that the space between the circumferential surface and the interior surface form a mixing chamber (103E) having an opening (103F); and an injector (103A) for injecting the liquid-phase propellant and the heating substance into the mixing chamber (103E) so that the propellant is evaporated by the heating substance thereby creating a jet stream moving from the opening (103F) of the mixing chamber (103E) to the outside.",
  "title": "Liquid rocket"
}