{
  "$type": "site.standard.document",
  "description": "The heater for a motor vehicle produces heat through fluid friction and has a working chamber (10) and a separate Pre-chamber (12) with feed and return openings to allow circulation of the fluid. The working chamber contains a motor driven rotor (7) defining a working gap with the chamber walls…",
  "path": "/patents/1097580",
  "publishedAt": "2003-03-12T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/038",
    "BEHR GMBH & CO [DE]"
  ],
  "textContent": "The heater for a motor vehicle produces heat through fluid friction and has a working chamber (10) and a separate Pre-chamber (12) with feed and return openings to allow circulation of the fluid. The working chamber contains a motor driven rotor (7) defining a working gap with the chamber walls. The rotor is a bucket vane disc (8) rotor. The housing has a coolant chamber (19).",
  "title": "Heating device, especially for motor vehicles"
}