{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 93112
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  "description": "The induction system has a secondary air system (8), and an air feed (5) that contains a choke element. The secondary air system contains a turbine (10) and a compressor (11). The turbine is subjected to the choke pressure difference and hence drives the compressor, which feeds air into the exhaust…",
  "path": "/patents/1093903",
  "publishedAt": "2003-08-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N3/22",
    "MANN & HUMMEL FILTER [DE]"
  ],
  "textContent": "The induction system has a secondary air system (8), and an air feed (5) that contains a choke element. The secondary air system contains a turbine (10) and a compressor (11). The turbine is subjected to the choke pressure difference and hence drives the compressor, which feeds air into the exhaust system (7) via a secondary air line (15) at least during a cold start phase. The compressor and/or the turbine is integrated into an air filter housing (26).",
  "title": "Intake system for an internal combustion engine"
}