{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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  "description": "The fuel injector comprises a hydraulic coupler unit (20) having a coupler piston (22) and a valve piston (23), where the coupler piston is pre-stressed by a pretension spring (40). The coupler unit is arranged in a low pressure space (12), where the coupler unit comprises a compressed reservoir…",
  "path": "/patents/1007650",
  "publishedAt": "2011-11-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M47/027",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The fuel injector comprises a hydraulic coupler unit (20) having a coupler piston (22) and a valve piston (23), where the coupler piston is pre-stressed by a pretension spring (40). The coupler unit is arranged in a low pressure space (12), where the coupler unit comprises a compressed reservoir (50) which is formed at the coupler piston. The compressed reservoir is limited with a flexible wall (51) for the low pressure space.",
  "title": "Fuel injector with hydraulic coupling unit"
}