{
  "$type": "site.standard.document",
  "description": "The drum-type ventilation air valve (1) is especially suitable for use in a road vehicle air conditioning system (3). It has a moving valve body with two arcuate portions (5) with sealing surfaces (7,7') on their convex surfaces. The two arcuate surfaces meet at an obtuse angle (4) and there is a…",
  "path": "/patents/1079614",
  "publishedAt": "2005-03-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/00685",
    "BEHR GMBH & CO KG [DE]"
  ],
  "textContent": "The drum-type ventilation air valve (1) is especially suitable for use in a road vehicle air conditioning system (3). It has a moving valve body with two arcuate portions (5) with sealing surfaces (7,7') on their convex surfaces. The two arcuate surfaces meet at an obtuse angle (4) and there is a rib (6) on the outside of the angle. The rib engages fixed sealing surfaces (8,8'). The valve body performs a rotary motion inside a fixed housing (2) and can cover one of two apertures (9) in the housing.",
  "title": "Drum valve"
}