{
  "$type": "site.standard.document",
  "description": "An air pressure circuit for a tire testing device is provided with: piping for conducting air, which is supplied from an air pressure supply source, to a tire; a controller for outputting a target command pressure; a proportional pressure control valve section; and a fixed flow rate air discharge…",
  "path": "/patents/946433",
  "publishedAt": "2016-02-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60S5/046",
    "KOBE STEEL LTD [JP]"
  ],
  "textContent": "An air pressure circuit for a tire testing device is provided with: piping for conducting air, which is supplied from an air pressure supply source, to a tire; a controller for outputting a target command pressure; a proportional pressure control valve section; and a fixed flow rate air discharge section. The proportional pressure control valve section is provided in the piping, is configured so that, in order that pressure within the tire is the target command pressure, the proportional pressure control valve section supplies and discharges air having a flow rate which is proportional to the pressure difference between the pressure within the tire and the target command pressure, and has a dead zone (d) in which the supply and discharge of air are not performed within a predetermined range in which the pressure difference includes zero. The fixed flow rate air discharge section is provided between the proportional pressure control valve section and the tire and can discharge air within the piping to the outside at a fixed flow rate.",
  "title": "AIR PRESSURE CIRCUIT FOR TIRE TESTING DEVICE"
}