{
  "$type": "site.standard.document",
  "description": "The hydraulic cylinder for a hydraulic system, especially a master cylinder for a hydraulic clutch, has a housing (12) with a bush formed therein for a longitudinally movable piston (18) which determines a variable pressure chamber (32) which is sealed against atmospheric pressure by a primary seal…",
  "path": "/patents/1071941",
  "publishedAt": "2005-12-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T11/232",
    "ZAHNRADFABRIK FRIEDRICHSHAFEN [DE]"
  ],
  "textContent": "The hydraulic cylinder for a hydraulic system, especially a master cylinder for a hydraulic clutch, has a housing (12) with a bush formed therein for a longitudinally movable piston (18) which determines a variable pressure chamber (32) which is sealed against atmospheric pressure by a primary seal (36) installed in the housing. A sensing system senses the position of the piston in the cylinder and comprises a permanent magnet (56) asymmetrically and rotationally fixed on the piston in a circumferential position aligning with a stationary sensor (61,63) which is sensitive to magnetic fields.",
  "title": "Hydraulic master cylinder"
}