{
  "$type": "site.standard.document",
  "description": "The process involves feeding flow rate into a main air pipe by a pressure controller (1). A pressure drop is measured in the pipe over a measurement period by a pressure sensor (6). A ratio between relationship of exhausting leakage flow volume to the pipe volume and leakage volume flow is…",
  "path": "/patents/1069192",
  "publishedAt": "2006-03-15T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T17/228",
    "FEW BLANKENBURG GMBH [DE]"
  ],
  "textContent": "The process involves feeding flow rate into a main air pipe by a pressure controller (1). A pressure drop is measured in the pipe over a measurement period by a pressure sensor (6). A ratio between relationship of exhausting leakage flow volume to the pipe volume and leakage volume flow is determined from a determined leakage volume flow and the measured pressure drop in the pipe with an average pressure and an air pressure. An independent claim is also included for a device for leak testing main air pipe of a train.",
  "title": "Testing the tightness of a main airpipe of a train"
}