{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 87130
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  "description": "The valve control uses camshafts (11,12) for operation of the i.c. engine gas changing valves (7,8), with one or more valves having a stroke which is altered via a switch element (15) having a switching time which is dependent on the engine revs and detected from the rotary oscillation of the…",
  "path": "/patents/1112678",
  "publishedAt": "2001-05-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01L1/267",
    "PORSCHE AG [DE]"
  ],
  "textContent": "The valve control uses camshafts (11,12) for operation of the i.c. engine gas changing valves (7,8), with one or more valves having a stroke which is altered via a switch element (15) having a switching time which is dependent on the engine revs and detected from the rotary oscillation of the camshaft, which is processed to provide a function signal for controlling the hydraulic system of the switch element.",
  "title": "Valve control for a combustion engine"
}