{
  "$type": "site.standard.document",
  "description": "An automotive piston engine has an exhaust gas return system which all important functions within a single housing (1). The components within the unit are an exhaust gas return valve (19), an exhaust gas cooling unit (10) with heat exchanger (15), a by-pass passage (8) with a regulator flap (33)…",
  "path": "/patents/1073013",
  "publishedAt": "2005-10-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M26/26",
    "PIERBURG GMBH [DE]"
  ],
  "textContent": "An automotive piston engine has an exhaust gas return system which all important functions within a single housing (1). The components within the unit are an exhaust gas return valve (19), an exhaust gas cooling unit (10) with heat exchanger (15), a by-pass passage (8) with a regulator flap (33). In addition, the exhaust gas return valve has a valve seat (31) that is cooled by a coolant from the exhaust gas cooling unit (10).",
  "title": "Exhaust recirculation system"
}