{
  "$type": "site.standard.document",
  "description": "A pulley unit, in particular for an internal combustion engine, comprises a hub (3) for a driving shaft, a ring-shaped element (5) externally coaxial to the hub (3) and having a seat for the engagement by a belt, and a connection device (14, 15) interposed between the hub (3) and the ring-shaped…",
  "path": "/patents/1098733",
  "publishedAt": "2003-01-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B67/06",
    "DIANTEL CORP N V [AN]"
  ],
  "textContent": "A pulley unit, in particular for an internal combustion engine, comprises a hub (3) for a driving shaft, a ring-shaped element (5) externally coaxial to the hub (3) and having a seat for the engagement by a belt, and a connection device (14, 15) interposed between the hub (3) and the ring-shaped element (5). The connection device (14, 15) is adapted to undergo elastic deformations in consequence of the tendency of the hub (3) to assume a speed different from that one of the ring-shaped element (5), in order to carry out the function of a flexible coupling at least for small variations of said speed difference. The connection device (14, 15) has a behaviour different depending on the tendency of the hub (3) to rotate faster or slower than the ring-shaped element (5). When the tendency of the hub (3) to rotate faster than the ring-shaped element (5) increases, the device assumes the behaviour of a flexible coupling with increasing stiffness, while in the opposite case the connection device tends to uncouple the hub (3) from the ring-shaped element (5).",
  "title": "Pulley unit, in particular for an internal combustion engine"
}