{
  "$type": "site.standard.document",
  "description": "Provided is a shut-off valve fault diagnosis device that performs fault diagnosis of a first shut-off valve (41) that is disposed immediately after a gaseous fuel tank and a second shut-off valve (42) that is disposed immediately before a regulator (43) in a gaseous fuel supply system (3). The…",
  "path": "/patents/993583",
  "publishedAt": "2013-01-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D19/022",
    "KEIHIN CORP [JP]"
  ],
  "textContent": "Provided is a shut-off valve fault diagnosis device that performs fault diagnosis of a first shut-off valve (41) that is disposed immediately after a gaseous fuel tank and a second shut-off valve (42) that is disposed immediately before a regulator (43) in a gaseous fuel supply system (3). The shut-off valve fault diagnosis device includes a diagnosis processing unit (67) that performs a valve-shutting control of the first shut-off valve (41), performs a valve-shutting control of the second shut-off valve (42) after a predetermined time has passed since the valve-shutting control of the first shut-off valve (41), and performs fault diagnosis of the first shut-off valve (41) and the second shut-off valve (42) based on a variation tendency in a fuel pressure between the first shut-off valve (41) and the second shut-off valve (42) after performing the valve-shutting control of the second shut-off valve (42).",
  "title": "SHUT-OFF VALVE FAULT DIAGNOSIS DEVICE AND FUEL SUPPLY SYSTEM"
}