{
  "$type": "site.standard.document",
  "description": "A levelling valve assembly (200) for an air suspension system of a heavy vehicle is provided, including an air valve (240) configured to allow air to either enter or escape from an air spring based on a position of a control arm (248) of the air valve, and including a linkage rod assembly (260)…",
  "path": "/patents/1394563",
  "publishedAt": "2025-09-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/0525",
    "VOLVO TRUCK CORP [SE]"
  ],
  "textContent": "A levelling valve assembly (200) for an air suspension system of a heavy vehicle is provided, including an air valve (240) configured to allow air to either enter or escape from an air spring based on a position of a control arm (248) of the air valve, and including a linkage rod assembly (260) configured to translate movement between a sprung and unsprung mass of the vehicle into a rotation of the control arm to regulate a ride height of the vehicle, wherein the linkage rod assembly further includes a spring and damper arrangement (264) configured to dampen or block movement of the control arm not caused by a change in a mass loading of the vehicle. A corresponding air suspension system and heavy vehicle are also provided.",
  "title": "LEVELING VALVE ASSEMBLY FOR AN AIR SUSPENSION SYSTEM AND THE VEHICLE"
}