{
  "$type": "site.standard.document",
  "description": "In a vent valve structure including a cut valve (20) that shuts off the flow of fuel vapor and fuel liquid, a positive pressure adjustment valve (30) that opens when positive pressure is applied, and a negative pressure adjustment valve (40) that opens when negative pressure is applied, the…",
  "path": "/patents/1096898",
  "publishedAt": "2003-04-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M25/0836",
    "KYOSAN DENKI KK [JP]"
  ],
  "textContent": "In a vent valve structure including a cut valve (20) that shuts off the flow of fuel vapor and fuel liquid, a positive pressure adjustment valve (30) that opens when positive pressure is applied, and a negative pressure adjustment valve (40) that opens when negative pressure is applied, the negative pressure adjustment valve (40) is provided in a row arrangement with the cut valve (20) in a position linking a ventilating passage (6) and a fuel tank (2) so as to bypass the valve opening (22a) of the cut valve (20).",
  "title": "Fuel tank ventilation valve for internal combustion engines"
}