{
  "$type": "site.standard.document",
  "description": "A transportation vehicle includes: a cooling fan that is driven by a hydraulic motor; a heat exchanger that is disposed in a front portion of a vehicle body; a fan control valve that controls a flow of a hydraulic operating fluid supplied to the hydraulic motor; a cylinder control valve that…",
  "path": "/patents/1376989",
  "publishedAt": "2025-10-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B62D5/075",
    "Hitachi Construction Machinery Co., Ltd."
  ],
  "textContent": "A transportation vehicle includes: a cooling fan that is driven by a hydraulic motor; a heat exchanger that is disposed in a front portion of a vehicle body; a fan control valve that controls a flow of a hydraulic operating fluid supplied to the hydraulic motor; a cylinder control valve that controls a flow of the hydraulic operating fluid supplied to a hydraulic cylinder; and a controller. The fan control valve and the cylinder control valve are connected in tandem to a center bypass line. The fan control valve has a neutral position that makes a first hydraulic pump and the cylinder control valve communicate with each other and makes a suction port and a delivery port of the hydraulic motor and a hydraulic operating fluid tank communicate with each other, and a rotation position that makes the first hydraulic pump and the suction port of the hydraulic motor communicate with each other and makes the delivery port of the hydraulic motor and the hydraulic operating fluid tank communicate with each other.",
  "title": "Transportation Vehicle"
}