{
  "$type": "site.standard.document",
  "description": "The filter has two air inlet openings opened against surroundings at a valve, and a round filter element (14) arranged between air inlet openings and an air outlet opening. One of the air inlet opening is connected with an intake pipe for intake of outside air, and another air inlet opening is…",
  "path": "/patents/1014100",
  "publishedAt": "2011-04-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M35/0203",
    "MANN & HUMMEL GMBH [DE]"
  ],
  "textContent": "The filter has two air inlet openings opened against surroundings at a valve, and a round filter element (14) arranged between air inlet openings and an air outlet opening. One of the air inlet opening is connected with an intake pipe for intake of outside air, and another air inlet opening is equipped with umbrella valves (27, 28), which close or open the latter air inlet opening. The umbrella valves are supported on a sealing edge and comprise elastomer material. A region of the latter air inlet opening is provided with a frame (22).",
  "title": "Air filter for combustion engine"
}