{
  "$type": "site.standard.document",
  "description": "The air-suspension system (1) has a lift-lower valve assembly (3) having lifting-lowering valves (7a,7b), and a level control valve assembly (4) comprising electro-pneumatic servo valves (38a,38b). The lifting-lowering valves and electro-pneumatic servo valves are arranged in parallel line branches…",
  "path": "/patents/994282",
  "publishedAt": "2013-01-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60G17/0525",
    "HALDEX BRAKE PROD GMBH [DE]"
  ],
  "textContent": "The air-suspension system (1) has a lift-lower valve assembly (3) having lifting-lowering valves (7a,7b), and a level control valve assembly (4) comprising electro-pneumatic servo valves (38a,38b). The lifting-lowering valves and electro-pneumatic servo valves are arranged in parallel line branches and are operated based on primary control pressure value and secondary control pressure value respectively. The air-suspension bags (5a,5b) are operated based on the position of ventilation valve (23) and or shut-off valves (25a,25b) provided in level control valve assembly.",
  "title": "Pneumatic spring assembly for a commercial vehicle"
}