{
  "$type": "site.standard.document",
  "description": "A compressor unit includes a compression stage that compresses hydrogen gas as boil-off gas from a liquid hydrogen storage tank. The compression stage includes a cylinder unit, a piston, a piston rod that connects the piston to a crank mechanism, a cover part disposed outside the cylinder unit, a…",
  "path": "/patents/965296",
  "publishedAt": "2026-05-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M21/0221",
    "KOBE STEEL LTD [JP]"
  ],
  "textContent": "A compressor unit includes a compression stage that compresses hydrogen gas as boil-off gas from a liquid hydrogen storage tank. The compression stage includes a cylinder unit, a piston, a piston rod that connects the piston to a crank mechanism, a cover part disposed outside the cylinder unit, a nitrogen gas supply unit that supplies nitrogen gas to a heat insulation space between the cover part and the cylinder unit, and a control unit that controls the nitrogen gas supply unit so that nitrogen gas is supplied into the heat insulation space while the compression stage compresses hydrogen gas.",
  "title": "COMPRESSOR UNIT"
}